CN103381809A

CN103381809A - Method and system for power train disconnect-type clutch

Info

Publication number: CN103381809A
Application number: CN2013101609385A
Authority: CN
Inventors: A·O’C·吉布森; F·涅多列佐夫; J·A·多林; 姜洪
Original assignee: Ford Global Technologies LLC
Current assignee: Ford Global Technologies LLC
Priority date: 2012-05-04
Filing date: 2013-05-03
Publication date: 2013-11-06
Anticipated expiration: 2033-05-03
Also published as: CN103381809B

Abstract

The invention provides a system and a method for improving the operation of a hybrid vehicle. In one embodiment, compensation for a power train disconnect-type clutch is provided. The method can reduce torque interference of a power train.

Description

The method and system that is used for the transmission system disconnect-type clutch

The cross reference of related application

The application requires the preceence of the U.S. Provisional Patent Application 61/643,137 submitted on May 4th, 2012, for its whole content of all purposes incorporated herein by reference.

Technical field

The present invention relates to for improvement of the driving performance of vehicle and the system and method for fuel efficiency.Can be useful especially for the driving engine the method that optionally is connected in electrical motor and change-speed box.

Background technology

Some motor vehicle driven by mixed powers can comprise the transmission system disconnect-type clutch, and this transmission system disconnect-type clutch can mechanically be isolated the part of transmission system and the second portion of this transmission system.For example, driving engine can via the transmission system disconnect-type clutch optionally with the isolation of change-speed box and wheel, so change-speed box and wheel can be independent of the driving engine operation.Even driving engine stops operating, the transmission system disconnect-type clutch also makes torque can be provided for transmission system to promote vehicle.But during the requirement of hope or the higher situation of drive train torque, the transmission system disconnect-type clutch can be closed so that the torque that requires of hope to be provided.If the torque that the transmission system disconnect-type clutch transmits is more than the torque of hope, closed transmission system disconnect-type clutch can disturb torque and introduce transmission system.Specifically, closed transmission system disconnect-type clutch can cause to chaufeur it is that significant drive train torque disturbs during engine starting.Therefore, comprise that the transmission system of cut-off clutch is very useful for improving vehicle fuel economy, but the fuel efficiency that increases may be to increase noise of driving system vibration and uncomfortable property (NVH) as cost.

Summary of the invention

The contriver of this paper has realized that shortcoming above-mentioned and developed a kind of method for operating hybrid vehicle, comprising: responding engine starts the TCC that requires open closed; Regulate transmission system integrated actuating machine/electrical generator (DISG) speed with the face of fluid torque converter speed that response is wished.

Activate to open closed TCC by responding engine and can reduce the drive train torque interference that is caused by closed transmission system disconnect-type clutch.In addition, can regulate the speed of DISG in order to control the amount of the torque that passes through turbine transformer, so the drive train torque pulsation can reduce before passing to wheel via change-speed box.

In another embodiment, a kind of method of operating hybrid vehicle comprises: responding engine starts the TCC that requires open closed; With speed control mode operating transmission system integrated actuating machine/electrical generator (DISG); The face of fluid torque converter speed that response is wished is regulated DISG speed; And by closed transmission system disconnect-type clutch start the engine.

In another embodiment, the method also comprises the face of fluid torque converter torque adjustment DISG speed that response is wished.

In another embodiment, side by side regulate DISG speed with closed transmission system disconnect-type clutch.

In another embodiment, during the method also is included in closed transmission system disconnect-type clutch, response DISG regulates torque output adjusting transmission system disconnect-type clutch transfer function.

In another embodiment, comprise partly closed transmission system disconnect-type clutch and then all closures should closure transmission system disconnect-type clutch by closed transmission system disconnect-type clutch start the engine, make transmission system disconnect-type clutch input speed coupling transmission system disconnect-type clutch output speed when engine speed equals DISG speed substantially.

In another embodiment, a kind of hybrid vehicle powertrain systems system comprises: turbine transformer; Transmission system integrated actuating machine/electrical generator (DISG); Driving engine; Be arranged on the transmission system disconnect-type clutch between this driving engine and DISG; And controller, this controller comprises non-transition instruction, thereby this non-transition instruction can be carried out the face of fluid torque converter torque that moves this DISG and response transformer turbine speed and hope with speed control mode the face of fluid torque converter torque of hope is provided by regulating DISG speed.

In another embodiment, this hybrid vehicle powertrain systems system also comprises the instruction of additional executable non-transition, is used for engine stop after closure transmission system disconnect-type clutch when engine speed equals DISG speed for the first time substantially.

In another embodiment, this hybrid vehicle powertrain systems system also comprises the instruction of additional executable non-transition, is used for the closed transmission system disconnect-type clutch of requirement of response start the engine.

In another embodiment, this hybrid vehicle powertrain systems system also comprises the instruction of additional executable non-transition, be used for according to the transmission system disconnect-type clutch should exert oneself/application force estimates this transmission system disconnect-type clutch torque.

In another embodiment, this hybrid vehicle powertrain systems system also comprises the DISG speed sensor and is used for determining the transformer turbine speed sensor of transformer turbine speed.

In another embodiment, speed control mode comprises that adjusting DISG torque is to regulate DISG speed.

The present invention can have some advantages.Specifically, the method can reduce the drive train torque interference of motor vehicle driven by mixed power.And the method can be improved the driving performance of vehicle.Also have, the method can reduce the transmission system wearing and tearing, thereby increases the work life of transmission system.

Above-mentioned advantage of the present invention and other advantages and feature are very obvious in the independent or detailed specific embodiment by reference to the accompanying drawings below.

Should be understood that the summary of the invention that provides top is the design of selecting for simple form introducing, this design further describes in the specific embodiment.This does not also mean that key or the essential characteristic of pointing out theme required for protection, and the scope of theme required for protection is limited uniquely by claims.And theme required for protection is not limited to solve the embodiment of any shortcoming that any part top or of the present invention points out.

Description of drawings

By reading separately or by reference to the accompanying drawings the example (this paper is called the specific embodiment) of embodiment, fully understand advantage described herein in more, wherein:

Fig. 1 is the schematic diagram of driving engine;

Fig. 2 illustrates the first example vehicle transmission system structure;

Fig. 3 illustrates the second example vehicle transmission system structure;

Fig. 4 is the diagram of circuit that an example of the method operational vehicle transmission system of describing with the accompanying drawing of back is shown;

Fig. 5-8 illustrate for travel diagram of circuit and the situation of Power Train of route conditions operating hybrid vehicle of response;

Fig. 9 and 10 illustrates for the method for response vehicle mass regulation moving power train operation and the sequential of indication;

Figure 11 and 12 illustrates for the method that starts motor vehicle driven by mixed power and the sequential of indication;

Figure 13 and 14 is used for adjusting to the method for the fuel of hybrid powertrain and the sequential of indication during being illustrated in engine starting;

Figure 15-18 are illustrated in the method for the driving engine that starts motor vehicle driven by mixed power during shifting of transmission and the sequential of indication;

Figure 19-22 illustrate be used to the method that the compensation of flywheel and transmission system disconnect-type clutch is provided and the sequential of indication;

Figure 23-26 illustrate the sequential be used to the method that stops motor vehicle driven by mixed power and indication;

Figure 27 and 28 is illustrated in and is used for keeping the method for motor vehicle driven by mixed power and the sequential of indication in the situation that stops driving engine on the slope;

Figure 29 A-36 is illustrated in the situation of transmission system braking and is used for the method for operation hybrid powertrain and the sequential of indication;

Figure 37-40 illustrate for the method for navigation (sailing) mode operation hybrid powertrain and the sequential of indication;

Figure 41-44 illustrate for the method for adaptive change transmission system disconnect-type clutch operation and the sequential of indication;

Figure 45-48 illustrate for describing change-speed box fluid power tor-con or being the indication function of change-speed box fluid power tor-con modeling.

The specific embodiment

The present invention relates to control the transmission system of motor vehicle driven by mixed power.As Figure 1-3, this motor vehicle driven by mixed power can comprise driving engine and electrical motor.During vehicle operating this driving engine can with or can be without transmission system integrated actuating machine/electrical generator (for example can referred to as electrical motor or the motor of DISG) operation.Transmission system integrated actuating machine/electrical generator is engaged in transmission system on the axis identical with engine crankshaft and just rotates when face of fluid torque converter rotates.And, DISG can non preference ground engage this transmission system or separate with this transmission system.But this DISG is the part of the one of this transmission system.Also have, in the situation that move or do not move this DISG of driving engine and can be moved.The quality of this DISG and inertia do not belong to this transmission system to provide or to absorb torque from this transmission system when this DISG does not move.

This transmission system can be according to the method operation of Fig. 4.In some instances, this transmission system can move according to driving route and vehicle mass shown in Fig. 5-10.Driving engine can start according to the method shown in Figure 11 to 18.The power train part compensation can be provided as shown in Figure 19-22.As shown in Figure 23-28, can fuel saving by optionally stopping driving engine.This transmission system also can enter regeneration mode as shown in Figure 29 A-36, and wherein the kinetic energy of vehicle is transformed into electric energy.This electric energy can be used for promoting vehicle subsequently.As shown in Figure 37-40, during some situations, vehicle transmission system can enter sail mode, and wherein the driving engine operation still is not connected mechanically to DISG or change-speed box or wheel.As shown in Figure 41-44, the operation of transmission system disconnect-type clutch can adaptive change (adapt).Method described herein can be used in order to move in the system that carries out several different methods simultaneously together.At last, Figure 45-47 illustrate for the indication function of describing the transmission torque changer.

With reference to figure 1, with reference to figure 1,---Fig. 1 illustrates one of them cylinder---controlled by electronic engine control device 12 to comprise the explosive motor 10 of a plurality of cylinders.Driving engine 10 comprises that combustion chamber 30 and piston 36 are arranged on wherein and are connected in the cylinder wall 32 of bent axle 40.Flywheel 97 and Ring gear 99 are connected in bent axle 40.Starter 96 comprises pinion shaft 98 and miniature gears 95.Pinion shaft 98 can optionally advance miniature gears 95 with engagement annular gear 99.Starter 96 can directly be installed on the front of driving engine or the back of driving engine.In some instances, starter can optionally provide torque to bent axle via belt or chain.Starter 96 can be described as the low power starter gear.In one example, starter 96 is in basic status when engage engine bent axle not.Combustion chamber 30 is illustrated by corresponding inlet valve 52 and exhaust valve 54 and is communicated with induction maniflod 44 and dontake pipe 48.Each can be moved air inlet and exhaust valve by inlet cam 51 and exhaust cam 53.The position of inlet cam 51 can be determined by inlet cam sensor 55.The position of exhaust cam 53 can be determined by exhaust cam sensor 57.

Fuel oil atomizer 66 is illustrated to be arranged to inject fuel directly in cylinder 30, usually said direct injection that Here it is to those skilled in the art.Alternately, fuel can be ejected into admission port, usually said tuned port injection that Here it is to those skilled in the art.Fuel oil atomizer 66 with come the pulse width of the signal FPW of self-controller 12 that liquid fuel is provided pro rata.Fuel offers fuel oil atomizer 66 by the fuel system (not shown) that comprises Fuel Tank, petrolift and fuel rail (not shown).Actuator 68 feed fuels nozzle 66 running currents from response controller 12.In addition, induction maniflod 44 is illustrated with optional electronic throttle 62 and is communicated with, the position of these electronic throttle 62 adjusting joint stigmal plates 64 with control from admission port 42 to induction maniflod 44 air stream.In one example, can be with the direct injection system of low pressure, wherein fuel pressure can be elevated to the 20-30 bar.Alternately, can use high pressure, twin-stage fuel system to produce higher fuel pressure.Throttle gate 62 and solar term door-plate 64 can be arranged between inlet valve 52 and induction maniflod 44 in one example, and making throttle gate 62 is admission port throttle gates.

Distributor less ignition system 88 response controllers 12 provide pilot spark by light-up plug 92 for combustion chamber 30.The upstream that general exhaust oxygen (UEGO) sensor 126 is illustrated in catalytic convertor 70 is connected in dontake pipe 48.Alternately, the bifurcation exhaust gas oxygen sensor can replace UEGO sensor 126.

Converter 70 can comprise a plurality of catalyst bricks in one example.In another example, can have with each a plurality of Emission Control Devices of polylith brick.Converter 70 can be three-way catalyst, particulate filter, rare NOx catcher, selective reduction catalyst or other Emission Control Devices.Tapping equipment temperature booster 119 also can be arranged on exhaust system with thermal conversion device 70 and/or exhaust.

Be shown as conventional microcomputer at Fig. 1 middle controller 12, comprise: microprocessing unit 102, input/output end port 104, read-only memory (ROM) 106, random access memory 108, keep-alive memory device 110 and conventional data bus.Controller 12 is illustrated the various signals that receive from the sensor that is connected in driving engine 10, except those signals above-mentioned, also comprises: from the engine coolant temperature (ECT) of the temperature sensor 112 that is connected in coolant jacket 114; Be connected in accelerator pedal 130 for detection of the position transduser 134 of the power that is applied by pin 132 and/or position; Be connected in brake pedal 150 and be applied to detect the power that applied by pin 152 and/or the position transduser 154 of position; Measurement from the manifold pressure (MAP) of the pressure sensor 122 that is connected in induction maniflod 44; Engine position sensor from the Hall transducer 118 that detects bent axle 40 positions; The measurement of the air quality that enters driving engine from sensor 120(for example, hot wire air flowmeter); And measure from the Throttle Position of sensor 58.Also can be used for being processed by treater 12 by sensing bar pressure (sensor is not shown).Of the present invention preferred aspect, forward for each of bent axle the uniformly-spaced pulse that motivation position transduser 118 produces predetermined quantities, can determine the speed (RPM) of driving engine from the number of pulse.

In certain embodiments, driving engine can be connected in the electro-motor/battery system of Fig. 2 and motor vehicle driven by mixed power shown in Figure 3.And, in some instances, can adopt other engine structure, for example, diesel motor.

At run duration, each cylinder in driving engine 10 carries out four stroke cycle usually: this circulation comprises inspiration stroke, compression stroke, expansion stroke and exhaust stroke.During inspiration stroke, generally speaking, exhaust valve 54 cuts out and inlet valve 52 is opened.Air is introduced into combustion chamber 30 via induction maniflod 46, and piston 36 moves to the cylinder bottom in order to increase the interior volume of combustion chamber 30.The position of (for example, when combustion chamber 30 at its maximum volume) is called bottom dead point (BDC) by those skilled in the art usually near cylinder bottom and at the end of its stroke at piston 36.During compression stroke, inlet valve 52 and exhaust valve 54 are all closed.Piston 36 towards cylinder cover motion so that the air in compression and combustion chamber 30.Be in its stroke end and usually be called top dead point (TDC) by those skilled in the art near the position of cylinder cover (for example, when combustion chamber 30 be in minimum volume) at piston 36.In the process that is called thereafter injection, fuel is introduced in combustion chamber.In the process that is called thereafter igniting, the fuel of injection is lighted a fire by the known device such as light-up plug 92, causes burning.During expansion stroke, the gas of expansion is shifted piston onto BDC backward.Bent axle 40 converts the movement of piston 36 to the rotating torques of S. A..At last, during exhaust stroke, exhaust valve 54 is opened with the air fuel mixture that will burn and is discharged into dontake pipe 48 and piston turns back to TDC.Describe as just example above should be pointed out that, and the open and/or closed timing of air inlet and exhaust valve can change, for example, provide positive or negative valve overlap, retarded admission door closed or various other examples.

Fig. 2 illustrates the diagram of block of the vehicle transmission system 200 in vehicle 290.Transmission system 200 can provide power by driving engine 10.Driving engine 10 can start with engine starting system shown in Figure 1 or DISG240.And driving engine 10 can produce torque or regulate torque by the torque actuated device 204 such as fuel oil atomizer, throttle gate etc.

Engine output torque can pass to the input side of double mass flywheel 232.Engine speed and double mass flywheel input side position and speed can be determined via engine position sensor 118.Double mass flywheel 232 can comprise be used to reducing the drive train torque spring that disturbs and the quality (not shown) that separates.The outgoing side of double mass flywheel 232 is illustrated the input side that is connected mechanically to transmission system disconnect-type clutch 236.Transmission system disconnect-type clutch 236 can electric actuation or hydraulic actuation.Position transduser 234 is arranged on the transmission system disconnect-type clutch side of double mass flywheel 232 to detect outgoing position and the speed of double mass flywheel 232.In some instances, position transduser 234 can comprise torque sensor.The downstream of transmission system disconnect-type clutch 236 is illustrated and is connected mechanically to DISG input shaft 237.

Can move DISG240 torque offered transmission system 200 or drive train torque to be transformed into the electric energy that to be stored in energy accumulating device 275.DISG240 has the power output greater than the starter 96 of Fig. 1.And DISG240 directly drives transmission system 200 or is transmitted is 200 directly drivings.Do not have belt, gear or chain that DISG240 is connected in transmission system.But DISG240 rotates with identical speed with transmission system 200.Energy accumulating device 275 can be storage battery, cond or inducer.The downstream of DISG240 is connected mechanically to transmission system disconnect-type clutch 236.

Torque converter 206 comprises turbine 286, torque has been exported to input shaft 270.Input shaft 270 is connected mechanically to automatic transmission with hydraulic torque converter 208 with turbine transformer 206.Turbine transformer 206 also comprises torque converter bypass lock-up clutch 212(TCC).Torque is directly passed to turbine 286 from pump impeller 285 when TCC is locked.TCC is by controller 12 electricity operations.Alternately, TCC can hydraulically lock.In one example, torque converter can be called the parts of change-speed box.Torque converter pump impeller speed and position can be determined via sensor 238.Torque change-speed box turbine trip speed and position can be determined via sensor 239.In one example, 238 and/or 239 can be position and the torque sensor of torque sensor or combination.

When TCC 212 disconnected fully, via the Fluid Transport between transformer turbine 286 and face of fluid torque converter 285, turbine transformer 206 passed to automatic transmission with hydraulic torque converter 208 with motor torque, thereby, can realize that torque increases.On the contrary, when TCC 212 fully engaged, engine output torque directly was transferred to the input shaft 270 of change-speed box 208 via TCC.Alternately, TCC 212 can partly engage, thereby can regulate the amount of torque that is directly passed to change-speed box.Controller 12 can be configured to by responding various engine operating conditions or regulating according to regulating TCC 212 based on the driving engine operating needs of chaufeur the amount of torque that is transmitted by turbine transformer 206.

Self-acting clutch 208 comprises engagement sleeve (for example gear 1-6) 211 and forward clutch 210.Engagement sleeve 211 and forward clutch 210 can optionally engage to promote vehicle.From the torque of self-acting clutch 208 output and then can be passed to wheel 216 to promote vehicle via output shaft 260.Output shaft 260 will pass to wheel 216 via the differentiator 255 that comprises the first gear 257 and the second gear 258 from the torque of change-speed box 308.To export before driving torque passes to wheel 216, automatic transmission with hydraulic torque converter 208 can be in response to the input driving torque of traveling state of vehicle transmission at input shaft 270.

And friction force can put on wheel 216 by engaging wheel friction brake 218.In one example, can respond chaufeur steps on the brake pedal (not shown) with its pin and engages wheel friction brake 218.In other examples, controller 12 or the controller that is connected in controller 12 can apply and engage the wheel friction brake.Unclamp its pin by the response chaufeur from brake pedal and unclamp wheel friction brake 218, can reduce in an identical manner the friction force to wheel 216.And, can apply friction force for wheel 216 by controller 12 as a part of car brake of engine automatic stop process.

Lubricating oil pump 214 can be communicated with to produce hydraulic pressure with self-acting clutch 208 fluids and engage various power-transfer clutchs, for example forward clutch 210, engagement sleeve 211 and/or TCC 212.For example, lubricating oil pump can 214 can be moved according to turbine transformer 206, and can drive by rotation or the DISG of axle by driving engine.Therefore, the hydraulic pressure that produces in lubricating oil pump 214 when engine speed and/or DISG speed increase can increase, and can reduce when engine speed and/or DISG speed reduce.

As Fig. 1 at length as shown in, controller 12 can be configured to receive the input from driving engine 10, and the therefore torque output of control engine and/or the operation of turbine transformer, change-speed box, DISG, various power-transfer clutch and/or various drgs.As an example, the combination that motor torque output can be by regulating spark timing, fuel pulsewidth, fuel impulse timing and/or air inlet, throttle gate is opened and/or the supercharging of valve timing, amount of valve lift and TC engine or the blow-fed engine of unloading is controlled by controlling.In the situation that diesel motor, controller 12 can come control engine torque output by controlling fuel pulse width, fuel impulse timing and air inlet.In all cases, engine control can carry out exporting with the control engine torque according to cylinder one by one.As road known in the art, controller 12 can also flow to the electric current of DISG winding and the current control that flows out from the DISG winding produces from torque output and the electric energy of DISG by adjusting.

When the idle stop situation was satisfied, controller 12 can begin engine shutdown by fuel and the spark that cuts off to electrical generator.But driving engine can continue rotation in some instances.And in order to keep the torque capacity in change-speed box, controller 12 can be grounded to the rotating element of change-speed box 208 housing 259 of change-speed box, and thereby is grounded to carriage frame.Specifically, controller 12 can engage one or more transmission clutch, for example, forward clutch 210, and the transmission clutch that will engage (a plurality of power-transfer clutch) is locked in case of transmission 259 and carriage frame, as U.S. Patent application No.12/833,788 " METHOD FOR CONTROLLING AN ENGINE THAT MAY BE AUTOMATICALLY STOPPED(be used for to control can self-braking driving engine method) " disclosed, for its content of all purposes incorporated herein by reference.Transmission clutch pressure can change (for example, increase), regulating the engagement state of transmission clutch, and provides the transmission torque amount of hope.

Also can regulate Wheel-activated pressure according to transmission clutch pressure at during engine shutdown, to assist constraint (tying up) change-speed box, reduce simultaneously the torque of transmitting by wheel.Particularly, lock simultaneously the transmission clutch of one or more joint by using wheel braking, can apply opposite power to change-speed box, and therefore transmission system is applied opposite power, thereby keep transmission gear at active engagement state and the moment of torsion potential on transmission gear train (transmission mechanism), and mobile wheel not.In one example, can regulate wheel brake pressure to coordinate the transmission clutch that applies with the engage locking of wheel braking at during engine shutdown.Therefore, by regulating wheel brake pressure and clutch pressure, the amount of the moment of torsion remain on change-speed box when engine shutdown in can be regulated.

When the situation of restarting is satisfied, and/or vehicle operators wants to start vehicle Time Controller 12 to reactivate driving engine by the burning that restarts in cylinder.As what further describe with reference to figure 11-18, driving engine can start in various manners.

Vehicle 290 can also comprise front windscreen temperature booster 294 and rear windscreen temperature booster 292.Windscreen temperature booster 294 and 292 can be electricity operation and front and

back windscreen

295 and 293 that embed vehicle in or be connected in before and after windscreen 295 and 293.The lamp 296 that when vehicle 290 can also be included in chaufeur operational vehicle 290, chaufeur can be seen or can not see.Vehicle 290 can also be included under the situation of selection to the petrolift 299 of the electric operation of driving engine 10 feed fuels.At last, vehicle 290 can comprise optionally the electric heater 298 to the ambient air heat supply of the air in the compartment or vehicle 290 outsides.

With reference now to Fig. 3,, Fig. 3 illustrates the second example vehicle transmission system structure.Many elements in transmission system 300 and the element in transmission system 200 are similarly and use identical numbering.Therefore, for the sake of brevity, between Fig. 2 and Fig. 3, the description of identical element is omitted.The description of Fig. 3 is limited to the element different from the element of Fig. 2.

Transmission system 300 comprises double-clutch-two layshaft gearbox 308.Change-speed box 308 is in fact the hand-operated transmission that automatically moves.Controller 12 operation first clutch 310, second clutch 314 and gearshifts 315, with between gear 317 (for example, first to the 5th grade) select.First clutch 310 and second clutch 314 optionally open and close with gear shift between gear 317.

The system of Fig. 1-3 can comprise torque sensor, and this torque sensor is for the basis of regulating the transmission system operation.Alternately, when TCC 212 disconnected fully, turbine transformer itself can be used as torque sensor.Specifically, the torque of the turbine transformer of opening output is the function of input and output speed, pump impeller and turbine trip speed, wherein the turbine output of the input of the pump impeller in turbine transformer and turbine transformer.In the application of Fig. 2 and 3, the DISG speed that pump impeller speed equals to measure because DISG pump impeller output shaft to be pump impeller input shaft and turbine trip speed measured and be used in the control that transmission clutch controls.

In addition, the input and output speed characteristic of the given turbine transformer of opening, the torque output of the turbine transformer of opening can be controlled by controlling face of fluid torque converter speed as the function of transformer turbine speed.This DISG can move to control transformer turbine speed with the speed feedback model.For example the DISG speed (identical with face of fluid torque converter speed) of order is the function of transformer turbine speed.The DISG speed of this order can be defined as the function of this DISG speed and turbine trip speed so that the torque of hope to be provided in turbine transformer output.

The transmission system that also can reduce by the transmission system disconnect-type clutch in the system of Fig. 1-3 disturbs.A kind of exemplary method was opened TCC before activating the transmission system disconnect-type clutch.For example, beginning to stop and during engine shutdown, ordered when shutting down when driving engine and can open the transmission system disconnect-type clutch during vehicle regenerative braking situation and/or when vehicle

In another example, during regenerative braking, the transmission system disconnect-type clutch can be open, driving engine can be stopped and turbine transformer can be locked can be to absorbed braking torque in DISG240 in order to increase.After engine shutdown, the transmission system disconnect-type clutch stays open, until the engine restart process begins.During engine restart, this transmission system disconnect-type clutch can be partly closed to start rolling motor until the first combustion incident in cylinder.Alternately, this transmission system disconnect-type clutch partly closure until the combustion incident in cylinder begin after driving engine reach predetermined speed.In case engine combustion restarts fully and driving engine and transmission system disconnect-type clutch speed fully near (for example, in threshold value RPM value) afterwards, this transmission system disconnect-type clutch capacity changes to gradually closed also the maintenance and does not slide/skid/slippage (slip).During the transmission system disconnect-type clutch changes gradually, torque may occur in the output of transmission system disconnect-type clutch and disturb.Therefore, can be the basis that arranges for regulating DISG speed from the torque feedback turbine transformer of opening or torque sensor.The torque value that can allow to wish with speed control mode operation DISG can more as one man keep until the complete closure of transmission system disconnect-type clutch.After transmission system disconnect-type clutch closure, TCC (TCC) can be locked according to locking scheduled plan (for example TCC can activate according to accelerator pedal position and car speed).

By this way, before the engine restart process began, TCC can be opened fully.Driving engine restarted and the transmission system disconnect-type clutch fully closed after the torque TCC can be closed.In addition, at the transmission system disconnect-type clutch during in closure, be known (due to it by control order) and thereby obtain the average transmission system disconnect-type clutch torque of estimation to the pressure of transmission system disconnect-type clutch.In order further to strengthen operation, the estimation of this transmission system disconnect-type clutch torque or capacity can by controller with the feedforward input of doing the DISG feedback speed is controlled, spray response to improve to disturb.Can be used as in the capacity of the transmission system disconnect-type clutch torque that is based on torque estimation the input of the inside torque backfeed loop in electrical motor (DISG) is added.When DISG was in the speed feedback model, this home loop can be to flow back to the road be used to the inside on the basis of the response that improves DISG.

By this way, a kind of exemplary method that has a vehicle of Power Train (for example about the described Power Train in Fig. 2-3) for operation is included in vehicle stop or speed lower than threshold value, and in the situation that the first operation that engine stop and transmission system disconnect-type clutch are opened.Secondly, in the situation that turbine transformer does not lock fully, the method comprises, for example surpasses threshold quantity according to operator's pedal input increase, and the request that receives is to start vehicle.As response, this driving engine is with one of them or more rotation and startup of DISG240 and starter, again in the situation that turbine transformer is still closed when closed transmission system disconnect-type clutch.At this run duration, be used for estimating torque on axle 241 from the torque of turbine transformer I/O speed feedback, the torque value of this torque and hope compares and it provides adjusting to the speed setting of the DISG240 that is in speed control mode.For example, this speed setting can be the adjusting parameter towards zero torque error between estimation and torque that wish on axle drive shaft 241.

Except top operation, can take the control action that adds, particularly pass (lash crossing) about the gap.For example, in the situation that vehicle is at engine stop (cutting out) when being in regeneration mode, when chaufeur is stepped on accelerator pedal, this transmission system is from negative torque conversion to positive torque, driving engine is activated, and the transmission system disconnect-type clutch is closed, and wherein these all actions are disturbing in order to wheel is introduced minimum torque of coordinating.Under the situation of selecting, when remaining on fixing gear (for example, not changing the change-speed box shelves), change-speed box 208 carries out these actions.But passing of the startup of driving engine and gap can produce this interference.Therefore, in the transition period, this drive train torque can control to little positive torque from little negative torque during the gap is passed, and then to the torque that requires.But this motor torque restriction can be introduced the delay in the torque that provides driver requested, and this torque postpones to cause the discontented of sizable chaufeur when adding the delay of start the engine to.

In one approach, can utilize the capacity of turbine transformer bypass power-transfer clutch 212 and the coordination of DISG240 output.For example, controlling to from torque the timing that speed control to change DISG can align by interstitial area with engine restart situation and conversion, to reduce by engine starting and to pass the interference to transmission system that interstitial area causes.

In one example, the operation that is used for following situation is provided: chaufeur applies braking and vehicle is in regeneration mode, engine shutdown, and the transmission system disconnect-type clutch is opened fully, and DISG absorbs torque.This DISG produces the braking torque level of wishing (with storing the electric energy that produces in storage battery, for example).During these situations, transmission system stand negative torque and TCC 212 locked.Amount in the negative torque of DISG can be increased and apply in order to increase regeneration by this transmission system.The amount that should bear torque can be based on the wheel braking torque of the hope that is used for current working.The degree of the braking that negative braking can handled based on chaufeur.But, negative braking also can occur when loosen the brake and acceleration pedal the operator.

When chaufeur release the brake (if applying) and bend the throttle, the positive drive that the level of torque with the requirement of providing is provided vehicle is the engine running operation of moment.Point out as mentioned above, in this transition period, in the situation that do not have Transmission gear to change, zero torque (interstitial area) is passed in torque and engine starting rotates and starts.The contriver of this paper has realized that the engine starting rotational torque disturbs in the upstream of power-transfer clutch 212, but the downstream at power-transfer clutch 212 is disturbed in the gap.The capacity of power-transfer clutch 212 can disturb to reduce these transmission systems with the speed coordination of DISG.

For example, the TCC212 capacity can reduce to and is enough to allow the slip controlled when regenerative torque reduces.This operation can be assisted transmission system from engine starting rotational torque interference and insulation.When the DISG regenerative torque moved from currency towards zero torque, transmission system can drop to from large negative torque approaching zero torque.Approach zero torque, this transmission system can enter interstitial area.So the control of DISG is transformed into speed control mode from the torque master mode, and face of fluid torque converter speed (Ni) is adjusted to higher than this transformer turbine speed (Nt).

This mode of regulating face of fluid torque converter speed provides little positive torque and reduces interference to the transmission system relevant with crossing this interstitial area during crossing interstitial area.Can increase the DISG speed of hope wheel provided torque and to provide some vehicles to accelerate.Engine starting being rotated the estimation of needed amount of torque can determine by controller, so that feedforward DISG torque command to be provided.When the transmission system disconnect-type clutch in conjunction with and driving engine started when rotating, this feedforward DISG torque command can reduce in the speed interference of turbine transformer from pump impeller.The capacity that can regulate this transmission system disconnect-type clutch disturbs to reduce transmission system.In case driving engine has started and transmission system disconnect-type clutch closure after, driving engine can be transformed into the torque that hope was controlled and provided in torque.

As described above at this paper about the system of Fig. 1-3, for example, torque can occur when the transmission system disconnect-type clutch activated disturb.Driving performance and the NVH that can cause variation disturbed in torque.For example, torque in the output of transmission system disconnect-type clutch (is for example disturbed, due to clutch actuation error or clutch grab slide or motor torque order and actual between error) function that can be used as transmission clutch state (for example, such as the degree of engagement according to the transmission system disconnect-type clutch of pressure or slip factor) and transmission gear ratio is transferred to change-speed box and inputs and be transferred to wheel.

The torque that is produced by DISG240 can be the function of three phase current in some instances.Torque at DISG output shaft 241 is DISG output torque and inputs sum at torque or the electrical motor of this DISG.This DISG can or move with the speed feedback model or with torque mode by Power Train control module (for example, controller 12) order.This controller provides speed or the torque of order.This controller or conv utilization or DISG speed feedback or DISG current feedback are to produce speed or the torque of wishing.

For example, the DISG torque can be according to function or the table output from the value that comprises the DISG torque of rule of thumb determining of DISG speed and electric current.DISG output is connected in and starts power-transfer clutch in some structures, and it is adjusted during shift event before being transferred to wheel, exports or makes DISG export the cunning that flattens with shaping DISG.In another kind was used, this DISG output was connected in turbine transformer 206 with lock-up clutch.Start during power-transfer clutch replaces the structure of turbine transformer in utilization, this start power-transfer clutch the low torque level accurately, the ability of control clutch torque rapidly may become problem.For example, start power-transfer clutch may slide when the maximum torque that exists driving engine to add DISG is exported.Therefore, start power-transfer clutch can be configured with the high torque (HT) capacity.But, during engine restart and vehicle from zero and/or the low speed of a motor vehicle low torque level that may be used during starting under, essence is controlled this with cutting, and to start power-transfer clutch be very difficult.

Be used for to regulate or control a kind of method of starting power-transfer clutch and be to utilize and be arranged on this and start torque sensor on Clutch input shaft.This installation of sensors is placed on this with the magnetosphere that is shaped and starts on Clutch input shaft, and it produces Voltage-output proportional to shaft torque.This voltage is read by noncontacting proximity sensor (a plurality of sensor) and checking system.So the signal from torque sensor can be used for moving this DISG with C/LOOP torque feedback model, the torque that appears at transmission system disconnect-type clutch output (DISG input) with elimination is disturbed.If automatic transmission with hydraulic torque converter utilizes turbine transformer in the change-speed box input, torque sensor can be arranged on the turbine transformer input shaft.This turbine transformer input torque sensor can be used for providing feedback in the DISG controller, disturbs to get rid of the torque of being transmitted by the transmission system disconnect-type clutch.

Just as described in this article, driving engine can be shut down (and the transmission system disconnect-type clutch is opened), to reduce consumption of fuel when the operator unclamps accelerator pedal.Therefore, begin to stop or being enough to accelerating vehicle when the torque from DISG or overcoming another other times of road load, engine shutdown when vehicle.When the torque of operator's application acceleration device pedal and hope surpassed the torque that this DISG can provide, engine restart was to replenish DISG output torque.In addition, if be reduced to minimum threshold under the battery charge will state, driving engine can restart under the coast situation.Driving engine can restart to provide positive drive to be torque and to provide torque so that DISG can be as generator operation, to charge a battery.In the engine restart process, can be used for starting rolling motor according to operating mode described herein or transmission system disconnect-type clutch or independent starter.In case after the burning beginning, perhaps driving engine is accelerated to mate the input speed of DISG in driving engine, perhaps the transmission system disconnect-type clutch engages/slides through control clutch pressure and is controlled to promote engine direct to the DISG input speed.When the transmission system disconnect-type clutch is closed, may produce large torque in the output of transmission system disconnect-type clutch and disturb, this torque is disturbed and is then passed DISG output.Torque is disturbed and can be passed to potentially change-speed box output and wheel, thereby is vehicular drive performance and NVH variation.

The whole bag of tricks can be used for reducing the impact that this engine restart torque is disturbed.The method of for example having described herein.Alternately or additionally, a kind of method that reduces the amplitude of engine restart torque interference in the output of transmission system disconnect-type clutch is before transmission system disconnect-type clutch closure, make the output of engine starting velocity of rotation and transmission system disconnect-type clutch, or DISG(being because the two is connected by axle) speed is complementary.This method is utilized the output torque of transmission system disconnect-type clutch and transmission system disconnect-type clutch velocity contrast relation.Specifically, transmission system disconnect-type clutch output torque increases effectively by the symbol (sign) of transmission system disconnect-type clutch input and output velocity contrast.For example, it equals this symbol (crankshaft speed-DISG speed) approx.This speeds match is more approaching, and transmission system disconnect-type clutch output torque is lower,

When this method can be used for reducing transmission system disconnect-type clutch output torque interference, its operation was arrived transmission system disconnect-type clutch output speed with boost engine speed.This transmission system disconnect-type clutch output speed can change from 750 to 3000RPM.Driving engine is accelerated to the accelerator pedal of stepping on that this scope can postpone to be supplied with the engine start of power and respond chaufeur.For example until the transmission system disconnect-type clutch is closed, this driving engine or do not provide torque or as drag effect (for example, if crankshaft speed is less than DISG speed, so transmission system disconnect-type clutch output torque is for negative) in change-speed box output.If chaufeur (is for example stepped on accelerator pedal, depress throttle pedal) and DISG do not have enough torque capacity in current DISG speed, so may not provide the torque of hope until transmission system disconnect-type clutch no-load voltage ratio and driving engine can provide positive torque.

Therefore, under some situations, can wish to utilize the transmission system disconnect-type clutch to promote engine speed to DISG speed, with closed transmission system disconnect-type clutch quickly and export at DISG positive motor torque is provided.The difficulty of closed transmission system disconnect-type clutch is the function in the torque is-symbol (crankshaft speed-DISG speed) of transmission system disconnect-type clutch output when driving engine accelerates to DISG speed.If DISG is used to accelerate bent axle and double mass flywheel inertia, so, engine combustion torque and being applied in realizes that poor between the DISG torque of given acceleration level appears at DISG output as negative torque, is then positive torque with the flip-flop symbol when bent axle (or double mass flywheel output) during over this DISG speed.

The variation of transmission system disconnect-type clutch output torque can form torque peak in the DISG input, and this torque peak can be transferred to change-speed box input and/or wheel.Therefore, DISG can be used as the torque interference rejection apparatus and moves to reduce engine restart torque increase.Torque in DISG output is DISG output torque and transmission system disconnect-type clutch output torque sum.The control of DISG can be based in transmission system disconnect-type clutch output, in DISG output, in turbine transformer output and/or one or more the detection in the torque of change-speed box output is disturbed.Torque sensor can make DISG can directly get rid of torque and disturb.This torque detects and can be provided by Non-contact speed-changing device shaft torque sensor.

If sensor is applied to the axle between transmission system disconnect-type clutch and DISG pump impeller, the torque of this detection can be the input that DISG controls, and eliminates engine restart transmission system disconnect-type clutch output torque peak to form opposite torque.Alternately, torque sensor can be arranged on axle between this DISG rotor and turbine transformer (or pump impeller).In such example, the inertia of DISG rotor and acceleration/accel are included in the ELIMINATION OF ITS INTERFERENCE torque calculation and in the ELIMINATION OF ITS INTERFERENCE torque calculation and are taken into account.And, can use change-speed box and input or output the shaft torque sensor.If the transmission output shaft torque sensor is employed, ELIMINATION OF ITS INTERFERENCE torque item can comprise change-speed box inertia and the optionally compensation of clutch state.

With reference now to Fig. 4,, Fig. 4 illustrates the diagram of circuit with the exemplary methods of the method operational vehicle transmission system of Fig. 5-47.The method of Fig. 4 and the method for back can be stored in the non-transient memory device of controller 12 as Figure 1-3 as executable instruction.And, all T as shown in figure 10 ₀-T ₈Various marks be illustrated in below shown in order in correlation time.

402, method 400 is determined operating mode.Operating mode can include but not limited to torque-demand, engine speed, motor torque, DISG speed and torque, car speed, ambient temperature and pressure and battery charge will state.Torque-demand can be inferred from its pedal 130 of acceleration and the control 12 of Fig. 1.Method 400 proceeds to 404 after operating mode is determined.

404, method 400 is regulated transmission system operation and operational factor according to the method for Fig. 5-8.Specifically, method 400 responds travel condition of road surface and/or the operation of driving behavior adjusting transmission system.Method 400 proceeds to 406. after regulating transmission system operation and operational factor

406, method 400 is regulated transmission system or the Power Train operation that is used for the vehicle mass shown in Fig. 9 and 10.In one example, can respond vehicle mass and regulate timing and the situation that is used for engine stop, make the number that can reduce transmission system wearing and tearing and transmission system disconnect-type clutch state variation.Method 400 proceeds to 408 after the transmission system operation that is used for vehicle mass is conditioned.

408, method 400 judges whether driving engine wishes to start.Engine starting can be by unique feature operation person's key or the button input requirements that has the requirement engine starting and/or stop.Alternately, driving engine is restarted can be according to operating mode by the automatic requirement of controller 12, and this operating mode does not comprise that driver's operation has the device of unique function of requirement engine stop or startup.For example, controller 12 can require the engine response chaufeur to unclamp vehicle brake pedal or response battery charge will state comes the requirement engine starting.Therefore, can require the input of the function engine starting to begin by having except unique to the requirement of start the engine again.If method 400 judgements require engine restart, method 400 proceeds to 410.Otherwise method 400 proceeds to 418.

410, method 400 selects to be used for the device of start the engine, as Figure 11 and 12 described.In one example, driving engine can start by the starter with power stage lower than DISG.In another example, driving engine can start by DISG when the starter with lower-wattage keeps dead status.Method 400 proceeds to 412 after selecting engine starting gear.

412, method 400 is regulated to the fuel injection timing of one or more direct fuel nozzle of electrical generator feed fuels, as shown in Figure 13 and 14.The fuel metering injection timing is to provide single or multiple fuel injection in single cylinder cycle period.By the fuel metering injection timing, the engine speed curve accelerates (for example from starting velocity of rotation (for example, 250RPM) driving engine accelerate) to the engine idle speed of wishing.Method 400 proceeds to 414 after regulating engine timing.

414, method 400 judges whether engine starting is relevant with shifting of transmission.For example, method 400 judges whether to wish the gear shift start the engine of basis from change-speed box shelves to another change-speed box shelves.If method 400 judgement hope are according to shifting of transmission or predetermined shifting of transmission start the engine, method 400 proceeds to 416.Otherwise method 400 proceeds to 418.

416, method 400 start the engine during shifting of transmission is as shown in Figure 15-18.In one example, during gear shift can engagement sleeve be opened or closure before start the engine.Method 400 proceeds to 418. after start the engine

418, method 400 provides double mass flywheel (DMF) compensation.And method 400 can provide the compensation of transmission system disconnect-type clutch.The DMF compensation can weaken the torque transfer of passing DMF by controlling DISG torque and/or speed and the torque of transmission system disconnect-type clutch.As shown in Figure 19-22, provide the DMF compensation.Method 400 proceeds to 420 after DMF compensation beginning.

420, method 400 judges whether to wish to stop engine rotation.Method 400 can judge low torque damping situation and/wish to stop engine rotation under other situations.If the method judgement is wished to stop engine rotation, method 400 proceeds to 422.If the method judgement does not stop engine rotation, method 400 proceeds to 420.

422, method 400 is regulated engine stop curve (profile).In one example, during driving engine arrived zero rotating speed, the adjusting engine speed makes at the engine location of zero engine speed wished for restarting driving engine.As shown in Figure 23-26, can regulate the engine stop curve.After selecting or reconciling the engine stop curve, method 400 proceeds to 424.

424, operation is used for ramp maintenance operation to method 400 for the regulation moving power train.In one example, respond optionally regulation moving power train of the road vehicle gradient.After response road vehicle gradient regulation moving power train, method 400 proceeds to and withdraws from.

430, method 400 judges whether to wish by the transmission system abrupt deceleration vehicle.When the vehicle descending is or during other situations, method 400 can judge wishes to provide car brakeing by transmission system.If method 400 judgements wish that method 400 proceeds to 432 by the transmission system abrupt deceleration vehicle.Otherwise method 400 proceeds to 434.

432, method 400 regulates DISG and driving engine moves so that the car brakeing level of hope to be provided by transmission system, as shown in Figure 29 A-36.In one example, provide car brakeing via DISG when being less than threshold level when battery charge will state (SOC).Method 400 proceeds to 434 after car brakeing is provided via rotation system.

434, method 400 judges whether to enter or leaves navigation (sailing) pattern.When in one example, sail mode can be described as when the transmission system disconnect-type clutch is opened driving engine with navigation idling speed (for example, burned air and fuel) operation.The navigation idling speed is lower than the engine idle rotating speed when engine combustion air-fuel mixture and the transmission system disconnect-type clutch closure.In addition, in sail mode, driving engine can move with the Athkinson circulation pattern.And spark timing can advance to close or at minimum spark timing, be used for optimal engine torque (MBT) in some instances.In one example, can enter sail mode when time in the predetermined scope of DISG torque in threshold value DISG torque.If judgement is wished to enter or withdraw from sail mode, method 400 proceeds to 436.Otherwise method 400 proceeds to 438.

436, method 400 can be moved driving engine and driver with sail mode, wherein driving engine with actv. operating mode operation and when DISG provides torque to vehicle transmission system the transmission system disconnect-type clutch open, as shown in figure 38.Alternately, method 400 can be left sail mode, as shown in figure 39.After entering or leaving sail mode, method 400 proceeds to 438.

438, method 400 judges whether to regulate the transfer function of transmission system disconnect-type clutch.In one example, whether method 400 judgements change the transfer function of (adapt) transmission system disconnect-type clutch during the situation such as the selection during engine idle or engine stop situation.If method 400 judgements wish to regulate the transfer function of transmission system disconnect-type clutch, method proceeds to 444.Otherwise method proceeds to 440.

444, the transfer function of transmission system disconnect-type clutch is regulated or changed to method 400, as shown in Figure 42-45.In one example, transmission system disconnect-type clutch transfer function is described the transmission of torque of this transmission system disconnect-type clutch according to the pressure of the torque of this transmission system disconnect-type clutch being inputted and offered this power-transfer clutch (for example, supply with the hydraulic fluid pressure of transmission system disconnect-type clutch or supply with the electric signal that becomes the transmission system disconnect-type clutch).Method 400 proceeds to and withdraws from after adjusting or change transmission system disconnect-type clutch transfer function.

440, method 400 operation driving engines and DISG provide the torque of hope with the input to change-speed box.In one example, driving engine and DISG are according to the drive train torque demand operation that is provided by chaufeur and/or controller.For example, if require the drive train torque of 35N-m at the face of fluid torque converter place, this DISG can provide for transmission system the torque of 10N-m when driving engine provides 25N-m for transmission system.Alternately, DISG or driving engine can provide whole 35N-m for transmission system.The operating mode of driving engine and/or DISG also can be used for definite torque output by driving engine and DISG output.After driving engine and DISG operational mode, speed and/or torque output, method 400 proceeds to 442.

442, method 400 is regulated driving engines and DISG torque so that the torque of expectation to be provided at the face of fluid torque converter place.In one example, estimate by torque sensor in the torque at face of fluid torque converter place.In other examples, be used for estimation during the turbine transformer running state on the basis of the torque at face of fluid torque converter place.This face of fluid torque converter torque estimation goes out as shown in figure 21.The change-speed box pump impeller torque of estimation deducts from the change-speed box pump impeller torque of hope, so that the face of fluid torque converter torque error to be provided.Response face of fluid torque converter torque error is regulated motor torque and/or DISG torque, to reduce the face of fluid torque converter torque error towards zero.Method 400 proceeds to and withdraws from after regulating drive train torque.

With reference now to Fig. 5,, Fig. 5 is illustrated in the schematic diagram of the exemplary information that may run into during travelling from a position to another position.Information generator shown in Figure 5 can be used for the method shown in Fig. 6-8.And this information generator and device shown in Figure 6 can be used for the system shown in Fig. 1-3.

In this example, vehicle 290 can travel and be clipped to the first destination and the second destination in 502 minutes at a route 501 and No. two routes.Vehicle 290 can comprise solar recharging system 504, is used to energy accumulating device shown in Figure 2 275 chargings.This solar recharging system can comprise platform solar panels and other relevant devices.In addition, vehicle 290 can comprise the induction charging system 514 that is used to energy accumulating device shown in Figure 2 275 charging.The electric charge that this induction charging system 514 can receive when vehicle mobile from the energy of outside vehicle.Vehicle 290 can also comprise for the receptor 503 of reception sources from the outside or inner signal of vehicle 290.

Vehicle route comprises several information generatoies, target and can be element for the basis of optionally moving some power train part.For example, vehicle 290 can receive global positioning system (GPS) information from satellite 505 in the process of moving.This gps system can provide and make treater shown in Figure 1 12 can determine road grade and distance along a route.Treater 12 can also be stored in symbol-based or signal 506 information relevant with vehicle stop during driving process, therefore when vehicle 290 during again at a route running, when vehicle will stop, starting, accelerate, slows down or (for example ± 5MPH) cruise with essentially identical speed with definite can to obtain this information.

Vehicle 290 can also be estimated during a route running and offered the quantity of electric charge of energy accumulating device 275 by solar energy system 504 by the sun 507.For example, the road if vehicle begins to travel No., 1 produces 1 watt/minute in the afternoon, and can expect that it will spend one hour at a road driving, estimates to produce 60 watts during a road driving.And the power that produces in the process of moving of estimation was regulated according to the time in one day and the weather of prediction.The amount of the electric power that for example, produces at the specified time of a day can be known by inference afterwards with the amount of the electric power that produces based on the solar watch of rule of thumb determining and the time in one day.

Vehicle 290 also records and is stored in memory device or receive from the condition of road surface 508 such as the external source of GPS.Condition of road surface 508 can comprise road grade/class information, road surface information and speed restriction.Vehicle 290 can also receive or measures ambient temperature from temperature sensor 509.Temperature sensor 509 is combined in the outside that maybe can be positioned at vehicle 290 in vehicle 290.

At last, at a road, vehicle 290 may be received in the electric power of power supply 510.Power supply 510 can be that dwelling house or power supply business of power is provided for vehicle 290 from the electrical network of a destination.Vehicle 290 can have the information of storage, comprises the data bank of storage and/or from formerly the information that destination stores, that indication vehicle 290 can charge again a destination that drives to.How electric weight in vehicle 290 to use this information in the process of moving is useful for determining to be stored in.

In another example, vehicle 290 can be via No. two road driving to two destinations.Vehicle 290 can be programmed to identify it and travel to No. two destinations.Along No. two routes, vehicle 290 can receive from the weather of Infrastructure 515, road conditions, ambient temperature and gps data.Infrastructure can include but not limited to radio broadcast towers and highway/road broadcast equipment.Vehicle 290 can also receive from the road conditions such as the handheld apparatus 513 of vehicular telephone, computing machine, small desktop device and/or personal digital assistant.In some cases, vehicle 290 can receive from the road conditions of other vehicles 511 that information is provided by transceiver 512 and destination information (for example, available electric charge station).

Therefore, vehicle can be the information of controlling the basis of transmission system operation in travel beginning and the whole middle reception of travelling.For example, information generator shown in Figure 5 can be the basis of moving transmission system disconnect-type clutch 236 shown in Figure 2, DISG240 and driving engine 10.

With reference now to Fig. 6,, Fig. 6 illustrates the diagram of circuit of the method for the information operation hybrid powertrain that runs into for response during travelling to another position from a position.In the system of the method for Fig. 6 as Fig. 1-3, executable instruction can be stored in the memory device of non-transition.

602, method 600 is determined vehicle working condition.Vehicle working condition (for example can include but not limited to engine speed, car speed, ambient temperature, driver requested torque, via input by driver requested torque, and also can be called in some instances the drive train torque of hope) and energy accumulating device SOC.And, operating mode can comprise according to chaufeur input or by will current running route and formerly sail during road match selection used to the road of destination.Method 600 proceeds to 604 after definite operating mode.

604, method 600 is collected running route information.Method 600 can receive running route information, for example road grade, traffic signal position, other car speeds, traffic spare space, battery-charging station position, ambient temperature and from the relevant traffic information in various sources.Information generator can include but not limited to internal storage, hand-held personal device (for example, personal digital assistant, panel computer, computing machine, phone), Microstar, Infrastructure, other vehicles and the traffic communication equipment of the controller in vehicle.In one example, the running route of vehicle can compare with the running route that is stored in controller storage.If the current driving route of vehicle coupling is stored in the running route in controller storage, the running route of controller from be stored in memory device selected this destination and travel conditions (for example, traffic signal, road grade, electrically-charging equipment etc.) and do not needed the chaufeur input.After catching drive route information, method 600 proceeds to 606.

606, the electric energy that method 600 stores according to the chance priorization utilization of charging to apparatus for storing electrical energy along the running route of selecting.Fig. 7 illustrates a kind of method of the electric energy of priorization utilization storage.The vehicle period of acceleration that the electric energy that the priorization utilization stores can be included in selection only utilizes electric energy, in order to utilize simply electric energy to compare with torque-demand according to hope, reduces the use of hydrocarbon fuels.And, the electric energy that the priorization utilization stores can comprise, in the distance that vehicle distances is being scheduled to from this energy accumulating device of external charging, or can (for example charge by kinetic energy at energy accumulating device, descending) during situation, basically utilize all the available storage chargings (for example, reducing the threshold quantity that the energy accumulating device charging drops to charging) in apparatus for storing electrical energy.Method 600 proceeds to 608 after the priorization utilization is stored in electric energy.By this way, arrive the condition of road surface that travels of the electric energy be convenient to utilize storage at vehicle before, the predetermined plan that utilizes the electric energy that stores of method 600.

608, method 600 is passed through the driving engine priorization to the electric charge of this energy accumulating device according to running route.For example, when energy accumulating device SOC was low, method 600 can be moved driving engine to promote vehicle.And, determine to utilize later the kinetic energy of vehicle can be to very short time of energy accumulating device charging the time during car retardation when method 600, method 600 can be moved driving engine and this energy accumulating device that do not charge.Fig. 8 illustrates priorization to a kind of method of apparatus for storing electrical energy charging.Apparatus for storing electrical energy charging preferentially afterwards method 600 proceed to 610.By this way, before arriving at vehicle the travel of being convenient to the apparatus for storing electrical energy charging, method 600 plans are charged to apparatus for storing electrical energy.

610, method 600 enters according to the running route priorization transmission system sail mode of vehicle.In one example, method 600 stops being less than the threshold time amount from 702 index informations of method 700 to determine when vehicle is expected.And method 600 can receive and be less than after the threshold time amount vehicle with vehicle stop and be expected and accelerate to higher than the relevant information of threshold rates.Method 600 is planned (for example entering of sail mode according to the position of running route, driving engine is in idling, the transmission system disconnect-type clutch is opened, and DISG provides the torque of requirement for vehicle transmission system), wherein vehicle is expected the time quantum that stops being less than threshold value, and wherein vehicle is expected from vehicle stop with the speed acceleration greater than threshold rates.Method 600 proceeds to 612 after carrying out the plan that enters sail mode.By this way, vehicle arrive row be convenient to sail mode sail condition of road surface before method 600 plans enter sail mode

612, method 600 enters operating transmission system disconnect-type clutch, DISG and driving engine according to the predetermined and preferential use that is stored in the electric energy in energy accumulating device, apparatus for storing electrical energy via the preferential electric charge of driving engine and sail mode.In other words, method 600 can be according to the vehicle of expection with along the condition of road surface open and close transmission system disconnect-type clutch of running route, operation DISG, and the operation driving engine.For example, if method 600 enters sail mode in the route period project of travelling in concrete stopping, when vehicle stop during in concrete position method 600 open the transmission system disconnect-type clutch and enter sail mode.And when response priorization utilization is stored in electric energy in apparatus for storing electrical energy, the DISG plan provides torque to accelerate this vehicle during not from the assistance of driving engine, and method 600 is opened the transmission system disconnect-type clutch.Also have, the response vehicle was opened the transmission system disconnect-type clutch in order to be used to promote vehicle rather than driving engine and hydro-carbon from the energy of apparatus for storing electrical energy in threshold distance before arriving battery-charging station.In addition, method 600 can respond vehicle and open the transmission system disconnect-type clutch in threshold distance before arriving downward grades.After transmission system disconnect-type clutch operation was planned and is implemented according to vehicle and running route situation, method 600 proceeded to 614.

614, method 600 judges whether running route and/or vehicle condition obviously change.The obvious change of running route and/or vehicle condition unexpected situation (for example, the vehicle stop of prolongation or unexpected battery charge loss) can occur or not have the situation of expection (for example there is no vehicle stop when the expection vehicle stop).If route is sailed in method 600 judgements and/or vehicle condition changes, answer is "yes" and method 600 turns back to 602, in order to determine that again preferential store electrical energy, energy device charging and sail mode enter.Otherwise answering is "No", and method 600 proceeds to 616.

616, method 600 judges that whether vehicle is in its final destination of travelling.In one example, method 600 compares the current location of vehicle and the destination of programming.In another example, method 600 compares the current location of vehicle and the destination of expection.If method 600 judgement vehicles are in its destination, method 600 proceeds to and withdraws from.Otherwise method 600 turns back to 614.

By this way, can and regulate the operation of hybrid powertrain along the situation of this running route according to running route.To the adjusting of hybrid powertrain can include but not limited to open and close transmission system disconnect-type clutch, via driving engine to energy accumulating device charging, the transmission system operational mode that enters sail mode and enter and leave other.

With reference now to Fig. 7,, Fig. 7 illustrates the diagram of circuit that uses the method for the electric energy that is stored in motor vehicle driven by mixed power for preferential.The method based on the chance of the electric energy that utilize to store to charge to apparatus for storing electrical energy on running route.The method of Fig. 7 can be stored in the memory device of the non-transition in the system of Fig. 1-3 as executable instruction.

702, method 700 is determined in the number of times of vehicle stop on running route and its position and estimates to put on the regenerated energy of apparatus for storing electrical energy at (for example during car retardation and descending) during vehicle stop and between other windows.Method 700 can also be estimated the amount via the battery charge of the expection of solar recharging system.And method 700 is determined the estimation of the electric energy that accelerates from the number of times that stops accelerating vehicle with from each vehicle stop.In addition, method 700 can store the information of the vehicle stop that is less than the threshold time section.

In one example, the number of times of vehicle stop and its position are according to estimating along the traffic signal of running route and/or the number of times of sign of being determined by information generator shown in Figure 5.Specifically, in one example, the number of times of vehicle stop is determined from the value that the number of times along the traffic signal of running route and/or sign multiply by the reasonable percentum (for example, 60%) of the actual traffic signal that stop of expression vehicle.The number of times of the vehicle stop that equals to estimate from the number of times that stops accelerating.Car speed, road grade and vehicle mass before the amount of the energy of regenerating during every this vehicle stop can stop according to this (for example utilize E=1/2mv ², wherein E is energy, m is vehicle mass, and v is car speed, or alternately at whole time gap F=ma+mgsin (Θ), wherein, m is vehicle mass, a is vehicle acceleration, and g is acceleration due to gravity, and Θ is the road angle that can convert the gradient to) calculate.Equally, the amount of the energy of accelerating vehicle can be calculated according to speed restriction, road grade and vehicle mass (for example, at whole time gap F=ma+mgsin (Θ), or E=1/2mv ²) and then convert electric energy to.And, along this route from solar power or the energy that obtains of induction installation can add to total charge volume that can obtain during this route that travels.The number of times of traffic signal, its position and road grade information can be determined by information generator shown in Figure 5.At number of times that vehicle stop, vehicle accelerate, energy regeneration with at every turn after the energy that vehicle stop position is used for accelerating vehicle is determined, method 700 proceeds to 704.

704, whether method 700 judgements energy accumulating device after 702 each vehicle stops of determining can be provided for accelerating vehicle to the energy of speed restriction.In one example, be stored in the energy of energy accumulating device and the amount of the energy of the regeneration of the estimation that can obtain along running route is added in together.Transmission system loss deducts from the energy that stores and the energy sum of regeneration, and result and comparing from the energy of the estimation of all vehicle stop accelerating vehicles.If from the energy of the estimation of all vehicle stop accelerating vehicles greater than the energy that stores and the energy sum of regeneration, it can be necessary can determining auxiliary along the running route driving engine, and energy accumulating device may not have enough storage electric power and completes whole running route.If energy accumulating device may not have enough electric power with along the route of selecting from all accelerating vehicles that stops, answering is "No", and method 700 proceeds to 706.Otherwise answer is "yes" and method 700 proceeds to 708.

706, method 700 selects which acceleration from self-stopping technology to be used to carry out from the energy of energy storage device.In other words, method 700 determines which vehicle period of acceleration DISG will provide torque to transmission system at.In one example, select the vehicle of the operation of DISG wherein accelerate based on when in conjunction with the time which acceleration request from stopping the amount of the energy amount of the most closely mating the energy that can obtain from energy accumulating device.For example, if in the beginning of travelling, energy accumulating device stores the electric charge of X enclosed pasture, and the first two vehicle of 13 times accelerates the energy that expection utilizes the X enclosed pasture, and the first two No. 13 vehicle accelerates to provide via DOSG and energy accumulating device.But, should be pointed out that the vehicle of selection accelerates must not have continuous order.But providing each vehicle of power to accelerate via DISG and energy accumulating device during the vehicle route of plan can be from any accelerated selection.

In another example, DISG is used for from the acceleration from vehicle stop of the electric charge of the energy storage device operation amount based on the energy that when can be used to store from the expection with to the energy accumulating device charging with at vehicle stop time of the energy of regeneration therein.For example, if be expected at only expect during car retardation a small amount of regenerated energy and when vehicle stop the charging of expection energy accumulating device be less than threshold level, do not plan so with DISG from this specific accelerating vehicle that stops.DISG is used for after the acceleration from vehicle stop of the electric charge of energy storage device operation is determined therein, and method 700 proceeds to 716.

708, method 700 determines it is not number of times and the position that the vehicle mobile from vehicle stop accelerates.Method 700 is also estimated the amount at the energy of each moving vehicle period of acceleration accelerating vehicle.The variation of the speed restriction that the number of times that vehicle mobile accelerates and position can occur from the whole process of running route is determined.Therefore, the number of times of moving vehicle acceleration can be determined in the each increase from the restriction of running route command speed.The variation of vehicle route speed can be stored in the mapping graph data bank and from memory index.And vehicle route can be determined according to the shortest distance between the destination of vehicle current location and requirement or time.

Method 700 also determines to accelerate at each vehicle the energy of position accelerating vehicle.The energy of accelerating vehicle can be determined according to speed restriction, road grade and vehicle mass (for example, at whole time gap F=ma+mgsin (Θ), or E=1/2mv ²).In the position of the mobile number of times that accelerates, moving vehicle acceleration with after the energy that each moving vehicle accelerates the position accelerating vehicle is determined, method 700 proceeds to 710.

710, method 700 judgements are accelerated to determine 708 whether energy accumulating device can provide energy to speed restriction for accelerating vehicle afterwards at each vehicle mobile.In one example, the amount that is stored in the energy in energy accumulating device add along running route estimate obtainable regenerated energy deduct 702 determine compare in the amount of the energy that stops accelerating vehicle and the amount of accelerating the energy of position accelerating vehicle at all moving vehicles at every turn.If accelerate the amount of energy of mobile vehicle in each position greater than from 702 surplus, can determine along the driving engine of running route auxiliary be need and energy accumulating device may not have enough storage electric power to provide electric power on whole route.Do not accelerate come accelerating vehicle along the route of selecting from all moving vehicles if energy accumulating device does not have enough electric power, answering is that "No" and method 700 proceed to 714.Otherwise answer is "yes" and method 700 proceeds to 712.

712, method 700 be chosen in the running route storage in energy accumulating device dump energy and where can be consumed at the energy that regeneration period (for example, during car retardation) produces.For example, if energy accumulating device have higher than the charging threshold value remaining X enclosed pasture electric charge and can obtain charging source in the destination of vehicle, method 700 determines where consuming this remaining electric charge along running route.In one example, be stored in and in energy accumulating device and be not used for the consumption of remaining electric charge of accelerating vehicle and begin in the position based on the destination to consume.For example, utilize the 1/Z enclosed pasture if the expection vehicle will have unnecessary electric charge and every mile vehicle of Z enclosed pasture, this transmission system disconnect-type clutch is opened and DISG is beginning from destination Z mile the Z enclosed pasture that discharges at a distance, and engine stop.By this way, the mode that method 700 can reduce hydrocarbon fuels consumption reduces the energy that is stored in energy accumulating device, because storing by consumed energy the store electrical energy that threshold level (for example, minimum battery charge will level) that electric charge drops to charging consumes increases.And because vehicle can recharge by electrical network in the destination, energy accumulating device can be used from the more efficient Charge Source charging of ratio engine.

On the other hand, determine there is no charging source in the destination as method 700, transmission system disconnect-type clutch closure and energy can still be stored in apparatus for storing electrical energy.Determining where will consume after the unnecessary energy that the vehicle period of acceleration does not consume, method 700 enters 716.

714, which moving vehicle is method 700 select accelerate will be used for carrying out from the energy of energy storage device.In other words, during method 700 is determined which moving vehicle acceleration (for example not coming the vehicle of self-stopping technology to accelerate), DISG will provide torque to transmission system.In one example, select the vehicle of the operation of DISG wherein accelerate based on when in conjunction with the time which vehicle acceleration request the amount of energy the most closely mate the amount that is being supplied with the energy that energy can obtain from energy accumulating device after with the vehicle acceleration of accelerating vehicle.For example, if energy accumulating device stores the electric charge of X enclosed pasture when travelling beginning, and 23 these vehicles that self-stopping technology rises accelerate expection and utilize Y coulombic energy (for example, wherein Y is less than X), and 13 acceleration of the first two from stopping providing by DISG and energy accumulating device.If expectation residue Z enclosed pasture after at every turn stopping accelerating vehicle, and the moving vehicle acceleration energy consumes sum greater than the Z enclosed pasture, and the moving vehicle for the first time that takies Z enclosed pasture electric charge accelerates to be provided Z enclosed pasture electric charge.But, should be pointed out that the moving vehicle of the selection that wherein unnecessary electric charge is provided accelerates to need not to be continuous on order.After moving vehicle acceleration reception DISG assisted and be selected from the electric charge of energy accumulating device, method 700 proceeded to 716.

716, the predetermined DISG of method 700 makes to accelerate or keep vehicle mobile to the assistance of transmission system with position and stabilized conditions energy based on the acceleration of determining.Can provide DISG to assist when the transmission system disconnect-type clutch is in open mode or during closure state.And, DISG can provide all or only a part of torque promote vehicle.

By this way, can be scheduled to and electric energy that the priorization utilization stores.In this example, from the vehicle speed-up ratio moving vehicle acceleration of zero velocity, or utilize the vehicle of the electric energy that stores to accelerate to have higher preceence during cruising condition.

With reference now to Fig. 8,, Fig. 8 illustrates according to the route that travels for predetermined or preferential via the diagram of circuit of driving engine to the method for apparatus for storing electrical energy charging.In the system of the method for Fig. 8 as Fig. 1-3, executable instruction can be stored in the memory device of non-transition.

802, method 800 index need charging from 702 and 708 the information of Fig. 7 to determine when apparatus for storing electrical energy is expected.Specifically, if determine that at 702 of Fig. 7 vehicle cannot accelerate from all zero velocity states, method 800 can determine that apparatus for storing electrical energy need to charge again in the position of accelerating along the vehicle of this running route, and SOC is reduced to less than threshold level herein.After determining that when apparatus for storing electrical energy expection needs charging again, method 800 proceeds to 804.

804, method 800 judges whether apparatus for storing electrical energy has had enough electric charges to promote vehicle in whole stroke again.In one example, according at whole time gap F=ma+mgsin (Θ), or E=1/2mv ², SOC again with the energy comparison of estimating with at the whole middle operational vehicle that travels.If method 800 judgement apparatus for storing electrical energy have enough storage chargings with at whole running route operation DISG, answer is "yes", and method 800 proceeds to and withdraws from.Otherwise answer is that "No" and method proceed to 806.

806, method 800 determines in running route that it will be that actv. and SOC be expected be low which part and position are charged to this energy accumulating device via driving engine.In 702,708 and 714 positions of determining of method 700, it is low that SOC can be expected.This energy accumulating device that charges can be that position and the part of actv. running route can be based on engine speed and the load of every mile consumes least fuel of driving driving engine of rule of thumb determining.For example, if, determine that at engine load be the fuel of every mile driving driving engine operation consumes least during at 2200RPM between 0.2 and 0.3, at driving engine during at 2200RPM and load be under the speed of a motor vehicle between 0.2 and 0.3, when DISG charges to energy accumulating device, can determine that energy accumulating device should be again to charge via driving engine.Therefore, in one example, for the time period (for example, 10 miles) corresponding to the prolongation of actv. driving engine operation conditions, method 800 partly is chosen as position and the part of the running route of energy accumulating device charging according to the road with constant vehicle speed (for example 55MPH speed restriction).In some instances, select the engine efficiency expection greater than the car speed of threshold value efficient.Under the specific speed of a motor vehicle engine efficiency can be rule of thumb determine and be stored in memory device.Method 800 proceeds to 808 after the part of the actv. running route that charges to energy accumulating device via driving engine is determined.

808, position and part that the electric charge that in the definite running route of method 800, driving engine provides energy accumulating device can be fully used.For example, method 800 estimates can be used for promoting from its current location to the final destination amount of the energy of vehicle, and wherein charging is considered to energy accumulating device via driving engine.Energy accumulating device can charge again in any position along running route, at this position engine efficiency greater than threshold value efficient and promote the energy of vehicle from its current location to its destination greater than the threshold quantity (for example, the capacity of energy accumulating device) of charging.After the part that the charging that provides for energy accumulating device by driving engine in running route can thoroughly be utilized, method 800 proceeds to 810.

810, method 800 is chosen in driving engine in running route can provide charging and position and the part of the running route that the electric charge that provided for energy accumulating device by driving engine is thoroughly utilized most effectively for energy accumulating device.For example, the vehicle destination is 20 miles to promote 10 miles, vehicle if method determines to store enough energy by energy accumulating device, and with the efficient operation higher than threshold value efficient, the position from 20 miles of purposes can be chosen as the position of charging to energy accumulating device for via driving engine.When driving engine was the energy accumulating device charging via this driving engine, the transmission system disconnect-type clutch was closed.After the position that is used for charging to energy accumulating device via driving engine was selected, method 800 proceeded to and withdraws from.

By this way, can move efficiently and allow to utilize via driving engine from the distance of destination according to vehicle location according to driving engine between charge period via the charging of the energy accumulating device of driving engine and offer any electric charge of energy accumulating device and preferential.And this priorization can be the basis for the position of determining the transmission system patterns of change.

Therefore, Fig. 1-8 provide the method and system of operating hybrid vehicle, comprising: response vehicle destination operating transmission system disconnect-type clutch.By this way, can improve the transmission system operation.The method comprises: the operating transmission system disconnect-type clutch comprises that response can access charging unit in the vehicle destination information moves this transmission system disconnect-type clutch.The method comprises that also this hybrid vehicle powertrain systems of response arrives the vehicle destination estimation of the energy that utilizes is stopped the amount that driving engine and minimizing are stored in the electric charge in energy accumulating device.The method comprises that also quantity of electric charge reduces by the transmission system that moves in conjunction with starter/generator.The method also comprises, the operating transmission system disconnect-type clutch comprises that the response indication can not obtain closed this transmission system disconnect-type clutch of information of charging unit in the vehicle destination.The method comprises that also the position of closed this transmission system disconnect-type clutch and response vehicle purpose charges to energy accumulating device.

The method and system of Fig. 1-8 also is provided for operating hybrid vehicle, comprising: receive running route information at controller; With this running route Information Selection of response ground operating transmission system disconnect-type clutch.The method comprises that also this running route information is included in purpose and whether can obtains battery-charging station, and optionally the operating transmission system disconnect-type clutch comprises that the amount that this motor vehicle driven by mixed power of response arrives the energy of purpose forecast consumption moves this transmission system disconnect-type clutch.

In some instances, the method comprises, this running route information comprises the information of downward grades, and responds this transmission system disconnect-type clutch of this downward grades information and stay open.The method comprises that running route information storage from the formerly stroke of whole running route is in controller.The method also comprises according to the current route of vehicle accesses this running route information, and response is opened or closed this transmission system disconnect-type clutch in the availability of destination electrically-charging equipment.The method also comprises, optionally the operating transmission system disconnect-type clutch comprises this transmission system disconnect-type clutch of number of times open and close of the vehicle stop that response is expected during running route.

In one example, the method comprises, optionally the operating transmission system disconnect-type clutch comprises that response does not comprise this transmission system disconnect-type clutch of number of times open and close that the moving vehicle that accelerates from the vehicle of vehicle stop accelerates.The method also comprises, optionally the operating transmission system disconnect-type clutch comprises this transmission system disconnect-type clutch of number of times open and close that response is accelerated from the vehicle of vehicle stop.And the method also comprises, the information of this running route comprises road grade information, and comprises that this running route information of response stores electric charge in apparatus for storing electrical energy.

The method and system of Fig. 1-8 additionally is provided for operating hybrid vehicle, comprising: the state of charge (SOC) of access apparatus for storing electrical energy; Receive running route information at controller; This SOC with response before arriving primary importance and running route information are predefined in primary importance this apparatus for storing electrical energy that charges.The method comprises that also this motor vehicle driven by mixed power receives the running route information from the different vehicle outside this motor vehicle driven by mixed power.The method also comprises this running route information operating transmission system disconnect-type clutch of response.The method comprises that also the variation of response in travel conditions upgrade the predetermined charging to apparatus for storing electrical energy.The method is discharged to apparatus for storing electrical energy in the predetermined second place before also being included in and arriving the second place.

With reference now to Fig. 9,, Fig. 9 illustrates the diagram of circuit for the exemplary method of the vehicle mass operation hybrid powertrain of response change.The method of Fig. 8 can be used as in non-transient memory device in the system that executable instruction is stored in Fig. 1-3.And.The method of Fig. 9 can provide sequential shown in Figure 10.

902, method 900 is determined vehicle working condition.Vehicle working condition can include but not limited to engine speed, car speed, energy accumulating device SOC, engine load, motor torque demand and vehicle acceleration.This operating mode can be determined or infer from the sensor shown in Fig. 1-3.After definite vehicle working condition method 900 proceed to 904,

904, method 900 is determined vehicle mass.In one example, vehicle mass is based on following equation:

Wherein vehicle acceleration is zero,

Driving engine/drive train torque ≈ road load+based on the torque of the gradient

Use T_wh1=R_rrM_vgsin (Θ ₁)+T_rl1

Wherein:

T_wh1=is at Θ ₁Gradient angle on wheel torque

T_wh2=is at Θ ₂Gradient angle on wheel torque

The R_rr=flower wheel radius of gyration

The M_v=vehicle mass is estimated

The g=gravity constant

Θ ₁=gradient angle

The road load torque of the flower wheel of T_rl1=on the gradient 1

The road load torque of the flower wheel of T_rl2=on the gradient 2

So vehicle mass is estimated as:

M_v=[(T_wh1–T_wh2)+(T_rl2–T_rl1)]/[R_rr*g*(Θ ₁–Θ ₂)]

In some instances, vehicle mass comprises the quality of vehicle and the quality of the trailer that dragged forward by this vehicle.In other examples, vehicle mass is only the quality of vehicle and there is no trailer.In addition, in certain embodiments, vehicle mass can comprise the quality of this automotive occupant and vehicle cargo.Driving engine/drive train torque can or utilize engine speed and the function of load index to determine from rule of thumb definite torque curve.For example, motor torque can be used by index the motor torque output estimation of engine speed and load index.Method 900 proceeds to 906 after estimating vehicle mass.

906, method 900 is regulated the energy accumulating device SOC threshold value that allows engine automatic stop.In one example, energy accumulating device SOC threshold value raises when vehicle mass increases, therefore when energy accumulating device during greater than the first threshold level under the vehicle acceleration mode vehicle motor will stop.Threshold value reduces if vehicle mass reduces energy accumulating device SOC, therefore when energy accumulating device during greater than the Second Threshold level under the vehicle acceleration mode vehicle motor will stop, this Second Threshold level is less than the first threshold level.Energy accumulating device SOC threshold value can change with vehicle mass regulates pro rata or regulates as the function of vehicle mass.Figure 10 illustrates two SOC threshold levels based on the different vehicle quality.Method 900 proceeds to 908 after regulating the energy accumulating device SOC threshold value that is used for engine stop.

908, method 900 judges whether to exist the situation for automatically stopping driving engine.In some instances, the situation that is used for automatically stopping driving engine comprising following situation: the indication vehicle accelerates, brake pedal step on, do not have accelerator pedal step on and energy accumulating device SOC greater than threshold level.Be used for automatically stopping the condition of driving engine if method 900 judgement is satisfied, answer is "yes" and method 900 proceed to 910 otherwise, answer is that "No" and method 900 proceed to 912.

910, method 900 stops driving engine automatically.Driving engine can stop to fuel and/or the spark of driving engine automatically by stopping, and does not stop and/or the driver requested engine stop of the device of unique function of start the engine via having.Method 900 proceeds to 912 after engine stop.

912, method 900 judges whether driving engine stops automatically.In one example, when engine automatic stop, bit in engine controller.If method 900 judgement driving engines stop automatically, answer is "yes" and method 900 proceeds to 914.Otherwise answer is that "No" and method 900 proceed to and withdraw from.

914, method 900 judges that whether vehicle mass is less than threshold quality.In one example, threshold quality is the quality adjustment (mass accommodations) that the vehicle mass of unloaded vehicle adds the goods of one or more individuals and specified quantitative.If method 900 judgement vehicle mass are less than threshold quality, answer is "yes" and method 900 proceeds to 916.Otherwise answer is that "No" and method 900 proceed to 922.

916, method 900 judges that friction braking should exert oneself whether less than threshold value.Alternately, judge whether to apply brake pedal in 916 methods 900.If if friction braking should be firmly less than threshold value or do not apply brake pedal, answer is "yes" and method 900 proceeds to 918.Otherwise answer is that "No" and method 900 proceed to and withdraw from.

918, method 900 makes driving engine stay halted state and the threshold quantity of wriggling (creep) torque (for example, vehicle is mobile with predetermined slow rate (2 miles per hour) in the plane) is provided to wheel via DISG.Method 900 proceeds to 920 after exporting the wriggling torque via DISG.

920, the method 900 driver requested torques of response provide the base quantity of face of fluid torque converter torque.The base quantity of face of fluid torque converter torque is not considered any variation of vehicle mass.And in one example, the base quantity of face of fluid torque converter torque converts the face of fluid torque converter torque based on chaufeur to the output (for example, driver requested torque) of acceleration pedal and the amount of accelerator pedal skew.In other example, wheel torque, Jake brake torque and/or other torques relevant to transmission system can replace the face of fluid torque converter torque.DISG electric current and this electric current that the face of fluid torque converter torque conversion becomes to wish offer DISG so that the face of fluid torque converter torque to be provided.

922, method 900 judges that friction braking should exert oneself whether less than threshold value.Alternately, judge whether to apply brake pedal in 922 methods 900.If as friction braking should be firmly less than threshold value or do not apply brake pedal, answer is "yes" and method 900 proceeds to 924.Otherwise answer is that "No" and method 900 proceed to and withdraw from.

924, engine restart, the transmission system disconnect-type clutch is closed, and provides the torque of at least a portion vehicle wriggling by driving engine.In some instances, the torque of vehicle wriggling can provide by driving engine and DISG.In other examples, the torque of vehicle wriggling is provided separately by driving engine.After the torque of at least a portion vehicle wriggling was provided at engine starting and by driving engine, method 900 proceeded to 926.

926, the method 900 driver requested torques of response provide the torque of the face of fluid torque converter of vehicle mass adjusting.For example, method 900 provides the additional amount of torque that the face of fluid torque converter torque of base quantity adds to be increased based on vehicle mass.In one example, additional amount of torque can rule of thumb be determined and be stored in by in table or function in the controller storage of the vehicle mass index that surpasses the basic vehicle quality.The face of fluid torque converter torque can be provided separately or be provided by driving engine and DISG by driving engine.In one example, the face of fluid torque converter torque wished by response of the face of fluid torque converter torque of hope is opened engine air throttle and is provided fuel to provide to driving engine.In other examples, the face of fluid torque converter torque of this hope is by supplying with a certain amount of electric current and provide to driving engine feed fuels and throttle gate opening to DISG.Method 900 proceeds to and withdraws from after the face of fluid torque converter torque that hope is provided.

Driving engine and transmission system disconnect-type clutch are regulated in the variation that by this way, can respond vehicle mass.And, also can regulate according to vehicle mass for the situation that stops driving engine according to SOC.

With reference now to Figure 10,, Figure 10 illustrates the exemplary sequential for the vehicle mass operating hybrid vehicle Power Train of response change.The sequential of Figure 10 can be undertaken by the method shown in Figure 10 of carrying out in the system shown in Fig. 1-3.

The first figure from the top of Figure 10 is the graph of relation of car speed and time.Y-axis represents that car speed and car speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.

The second figure from the top of Figure 10 is the graph of relation of engine operating state and time.Y-axis represents engine operating state.Driving engine is at operation and operation burned air-fuel mixture when trace is in higher level.Engine shutdown and not burning when trace is in reduced levels.X-axis represents that time and time increase along the direction of X-axis arrow.

The 3rd figure from the top of Figure 10 is the graph of relation that car brakeing applies state and time.Y-axis represents the car brakeing state.When being in higher level, uses trace vehicle brake pedal.When being in reduced levels, do not use trace vehicle brake pedal.X-axis represents that time and time increase along the direction of X-axis arrow.

The 4th figure from the top of Figure 10 is the face of fluid torque converter torque of hope and the graph of relation of time.The face of fluid torque converter torque that Y-axis represents the face of fluid torque converter torque wished and hope increases along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.

The 5th figure from the top of Figure 10 is the graph of relation of energy accumulating device state of charge (SOC) and time.Y-axis represents that energy accumulating device SOC and energy accumulating device SOC increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.Horizontal mark 1002 expression least energy storage device SOC levels, in this level, for example, when vehicle mass increased by increasing the vehicle capacity weight, driving engine can stop and the transmission system disconnect-type clutch is opened.Horizontal mark 1004 expression least energy storage device SOC levels, in this level, when the quality of vehicle was the quality of basic unloaded vehicle, driving engine can stop and the transmission system disconnect-type clutch is opened.Therefore, when vehicle during in its gross under low SOC level driving engine can stop and the transmission system disconnect-type clutch is opened.On the other hand, when vehicle mass increased, driving engine can stop and the transmission system disconnect-type clutch is opened under higher SOC level, unless so driving engine continue the SOC that the operation energy accumulating device is in higher level.

The 6th figure from the top of Figure 10 is the graph of relation of vehicle mass and time.Y-axis represents that vehicle mass and vehicle mass increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.

The 7th figure from the top of Figure 10 is the graph of relation of transmission system disconnect-type clutch state and time.The transmission system disconnect-type clutch is in open mode when trace is in lower level.The transmission system disconnect-type clutch is in closure state when trace is in higher level.X-axis represents that time and time increase along the direction of X-axis arrow.

In time T ₀, car speed is zero, engine stop, and brake pedal is applied in, and energy accumulating device SOC is higher, and the transmission system disconnect-type clutch is opened, and vehicle mass is in reduced levels.In this example, it is that the zero-sum brake pedal is applied in and automatically stops that driving engine has responded car speed.

In time T ₁, chaufeur loosen the brake, and because DISG(is not shown) and response chaufeur loosen the brake applies torque to vehicle transmission system and car speed increases gradually.Driving engine remains on stopped status and the transmission system disconnect-type clutch stays open.The face of fluid torque converter torque response chaufeur loosen the brake of wishing and increase subsequently driver requested torque and increase.Driver requested torque can be Jake brake torque, face of fluid torque converter torque, wheel torque or other drive train torque.Vehicle mass remains on reduced levels and because DISG promotes alone vehicle, energy accumulating device SOC begins to be reduced.

In time T ₂, the face of fluid torque converter torque response chaufeur torque-demand (not shown) of hope has been increased to the level of the automatic startup of driving engine and transmission system disconnect-type clutch closure.When driver requested torque surpassed the threshold level of torque, driving engine can automatically start and not have chaufeur directly to input to having the device (for example, ignition lock) that starts and/or stop the sole purpose of driving engine.Car speed responds the face of fluid torque converter torque that increases and continues to increase.Vehicle mass remains on reduced levels and along with vehicle acceleration energy storage device SOC continue to reduce.Vehicle brake pedal keeps no state.

In time T ₃, vehicle begins to respond driver requested torque and reduces and slow down.Vehicle mass at reduced levels and energy accumulating device SOC higher than threshold level 1004 so that the transmission system disconnect-type clutch is opened, and enter deceleration mode and stop because driver requested torque reduces the engine response vehicle.The driver requested torque that the face of fluid torque converter torque response of wishing reduces and reducing.The vehicle brake pedal state keeps unclamping and energy accumulating device begins charging by the DISG that vehicle inertia is transformed into electric energy.

In time T ₃And T ₄Between, vehicle stop and car brakeing are applied by chaufeur.Energy accumulating device SOC has increased and the transmission system disconnect-type clutch remains on open mode.Driving engine also remains on stopped status.

In time T ₄, vehicle mass increases.For example, vehicle mass can increase when chaufeur or other people make goods or passenger add in vehicle.Car speed remains on zero and driving engine keeps shutting down.The face of fluid torque converter torque of wishing remains on reduced levels and energy accumulating device SOC remains unchanged.The transmission system disconnect-type clutch also remains on open mode.

In time T ₅, chaufeur loosen the brake and increasing along with the face of fluid torque converter torque of hope increases DISG torque output.The face of fluid torque converter torque response chaufeur loosen the brake of wishing increases with increasing driver requested torque.Because applying torque energy accumulating device SOC to vehicle transmission system, DISG begins to reduce.Car speed begins to increase gradually.But because vehicle mass increases, vehicle accelerates with low rate.Controller begins to change according to the rate estimates vehicle mass of the torque that imposes on transmission system and vehicle acceleration.

In time T ₅And T ₆Between, the torque of engine response face of fluid torque converter is increased to greater than threshold level and automatically starts.It is closed greater than threshold level that the transmission system disconnect-type clutch also responds the face of fluid torque converter torque.Energy accumulating device SOC reduces and DISG provides torque to transmission system.

In time T ₆, chaufeur reduces driver requested torque and applies car brakeing.Driving engine keeps operation and transmission system disconnect-type clutch to engage, and therefore can provide braking at vehicle period of acceleration driving engine.Because vehicle mass has increased and because energy accumulating device SOC is less than threshold level 1002, driving engine keeps operation.Therefore, the transmission system disconnect-type clutch is opened timing and can be postponed or postpone when vehicle mass increases.Same when vehicle mass reduces the transmission system disconnect-type clutch open timing and can shift to an earlier date.Vehicle mass remains on higher level and vehicle slows down towards zero velocity.Energy accumulating device SOC increases when car retardation.

In time T ₇, because the speed of a motor vehicle reaches zero, the transmission system disconnect-type clutch is opened and engine stop.The face of fluid torque converter torque that car brakeing remains on the state of applying and hope remains on reduced levels.Vehicle mass remains unchanged when vehicle stop.

In time T ₈, brake pedal is unclamped by chaufeur and driving engine starts automatically.In this example, the transmission system disconnect-type clutch is opened when engine stop; But the transmission system disconnect-type clutch remains closed in some instances, so that driving engine and DISG accelerate to running velocity simultaneously.In case the vehicle mass that response increases and loosen the brake, engine restart.By this way, owing to can obtain driving engine and DISG when brake pedal unclamps, therefore can reduce with the possibility less than the speed accelerating vehicle of hope.And when chaufeur was not stepped on vehicle accelerator pedal, driving engine and DISG can be with applying with speed identical when vehicle is unloaded and when only promoting vehicle by DISG the wriggling torque that promotes vehicle.

The face of fluid torque converter torque of wishing also respond estimation vehicle mass increase and increase.Increasing the face of fluid torque converter torque of wishing makes vehicle to be similar to when vehicle mass is less (for example, in time T ₁) mode of accelerating vehicle accelerates.Therefore, for the input of similar accelerator pedal, vehicle accelerates to be similar to and reduces and accelerator pedal input when identical when vehicle mass.By this way, even if when vehicle mass changes, can stand similar vehicle for the accelerator pedal input chaufeur that is equal to and accelerate.

Therefore, provide the method and system of Fig. 1-3 and Fig. 9-10 to be used for operating hybrid vehicle, comprising: opening of transmission system disconnect-type clutch regulated in the variation of response vehicle mass.The method also comprises the variation adjusting engine stop timing that responds vehicle mass.The method comprises, the operation of regulating the transmission system disconnect-type clutch comprises that the increase delay transmission system disconnect-type clutch that respond vehicle mass opens timing.The method comprises, the operation of regulating the transmission system disconnect-type clutch comprises that the minimizing that responds vehicle mass shifts to an earlier date the transmission system disconnect-type clutch and opens timing.The method also comprises response vehicle mass adjusting energy storage device state of charge threshold value.The method comprises, adjusting energy storage device state of charge threshold value comprises that the response vehicle mass increases energy accumulating device state of charge threshold value.

In another example, provide the method and system of Fig. 1-8 to be used for operating hybrid vehicle, comprising: the operation of transmission system disconnect-type clutch is regulated in the variation of response vehicle mass; Automatically stop driving engine with the moment in this mass change of response.The method comprises that also the response vehicle mass does not restart driving engine when vehicle mass is in the first vehicle mass.The method comprises that also the response vehicle mass restarts driving engine when vehicle mass is in the second vehicle mass.The method comprises that this second vehicle mass is greater than the first vehicle mass.The method provides the torque of at least a portion wriggling by this driving engine after also being included in and restarting driving engine.

In some instances, the method comprises when driving engine does not start and when motor vehicle driven by mixed power does not move provides the wriggling torque individually via DISG.The method also comprises the face of fluid torque converter torque of the variation adjusting hope that responds vehicle mass.The method comprises, regulates the face of fluid torque converter torque of wishing comprises increases hope when the variation of vehicle mass increases vehicle mass face of fluid torque converter torque.The method also comprises, regulates the face of fluid torque converter torque of wishing and comprises minimizing face of fluid torque converter torque when the variation of vehicle mass reduces vehicle mass.

In another example, provide the method and system of Fig. 1-8 to be used for operating hybrid vehicle, comprising: the operation of the transmission system disconnect-type clutch that the variation adjusting of response vehicle mass is communicated with driving engine; Respond the first energy accumulating device charge level and automatically stop driving engine greater than the first charge threshold state, the first vehicle mass before this first charge threshold state changes based on vehicle mass; And respond the second energy accumulating device charge level and automatically stop driving engine greater than the second charge threshold state, the second vehicle mass after this second charge threshold state changes based on vehicle mass.Therefore, can the operating transmission system disconnect-type clutch to improve vehicle performance according to vehicle mass.

In some instances, the method comprises that the second charge threshold state is greater than the first charge threshold state.The method comprises that the second vehicle mass is greater than the first vehicle mass.The method comprises that also the transmission system disconnect-type clutch is opened when engine stop.The method comprises that also the transmission system disconnect-type clutch is closed when engine stop.

With reference now to Figure 11,, Figure 11 illustrates the diagram of circuit for the method for passing through the first electrical motor or the second motor start-up driving engine.The method of Figure 11 can be stored in as executable instruction in the non-transient memory device of controller 12 of Fig. 1-3.

1102, method 1100 is determined vehicle working condition.Vehicle working condition includes but not limited to engine speed, DISG speed, car speed, drive train torque demand, engine coolant temperature and transmission system disconnect-type clutch running state (for example, open, partially open or closure).Method 110 proceeds to 1104. after operating mode is determined

1104, whether the situation that method 1100 judgements stop engine rotation existing.In one example, when the drive train torque of hope (torque of the combination that for example, provides by driving engine and/or DISG) during less than the threshold quantity of torque engine rotation stop.Do not exist if method 1100 judgements stop the situation of engine rotation, method 1100 proceeds to 1106.Otherwise method 1100 proceeds to 1110.

1106, method 1100 operation driving engines.By providing spark or this driving engine of fuel to be moved according to engine operating condition to driving engine.That in some examples of diesel motor or homogeneous charge gas ignition due to compression (HCCI) driving engine, driving engine can not have spark operation at driving engine.Method 1100 proceeds to 1108. after the driving engine operation

1108, method 1100 provides torque from driving engine to wheel.Motor torque can and be guided driving engine output into wheel by change-speed box by closed transmission system disconnect-type clutch and be offered wheel.In some instances, driving engine and DISG torque can offer wheel simultaneously.Method 1100 proceeds to and withdraws from after motor torque offers wheel.

1110, method 1100 stops engine rotation and opens or separate the transmission system disconnect-type clutch.Engine rotation can stop to fuel and/or the air stream of engine cylinder by stopping.Method 1100 proceeds to 1112 after engine stop.Should be pointed out that DISG can respond the driver requested wheel that continues as when engine stop provides torque.

1112, whether the situation that driving engine is restarted in method 1100 judgements exists.In one example, driving engine can restart when the drive train torque demand surpasses the threshold value amount of torque.Driving engine can restart when the temperature of catalyst is reduced to lower than threshold temperature in other examples.The situation that restarts driving engine that 1100 judgements are selected as method exists, and method 1100 proceeds to 1114.Otherwise method 1100 proceeds to 1104.

1110, the amount that method 1100 is determined from the available torque of DISG.From the amount of the available torque of DISG based on specified DISG torque, battery charge will state, DISG speed and DISG temperature.The table that description can obtain the DISG torque is stored in memory device and passes through battery charge will state (for example, battery tension and a peace times hour rated value), DISG speed and DISG temperature index.This table output is from the amount of the obtainable DISG torque of DISG.After the amount of determining obtainable DISG torque, method 1100 proceeds to 1116.

1116, method 1100 judges whether DISG has the capacity of start the engine and whether the amount of torque of hope is provided.In one example, the amount of torque of hope is partly determined from the accelerator pedal that chaufeur can regulate to change the drive train torque of hope at least.The torque of start the engine can be in the table or function of rule of thumb determining and be stored in memory device.This table or function can be by engine temperature and the time index from engine stop.This table output arrives the engine starting velocity of rotation of wishing (for example, 250RPM) torque from zero velocity.The drive train torque of the hope that is provided by chaufeur is provided in the torque of start the engine, and the amount of available DISG torque deducts from the torque of start the engine and the drive train torque sum of hope.If result is being for just, DISG does not provide the torque of start the engine and the capacity of the drive train torque of hope is provided.Therefore, method 1100 proceeds to 1124.If result is for negative, DISG has the torque that start the engine is provided and the capacity of the drive train torque of hope is provided.Therefore, method 1100 proceeds to 1118.

1118, method 1100 judges whether to require engine starting.If requirement, method 1100 proceeds to 1120.Otherwise method proceeds to 1122.For example, when the motor torque increase in demand or when the chaufeur loosen the brake, method 1100 can judge that engine restart request makes.

1120, method 1100 provides the DISG torque for wheel and for driving engine.This DISG torque is by closed transmission system disconnect-type clutch and torque is passed to driving engine from DISG offer driving engine.This transmission system disconnect-type clutch can be partly closed with control engine speed during engine starting.Before fuel and spark offer driving engine, the speed that driving engine can rotate with starting (for example, 250RPM) rotation or with (for example, the 800RPM) rotation of basic idling speed.Method 110 turns back to 1104 after the DISG torque offers driving engine and wheel.

1122,1100 of methods provide the DISG torque for wheel.The input of self-controller can input and/or come based on accelerator pedal to the DISG torque that offers wheel.Method 1100 turns back to 1104. after the DISG torque provides wheel

1124, method 1100 judges whether to exist engine restart request.As describing 1118, engine restart request can produce.If required engine starting, method 1100 proceeds to 1126.Otherwise method 1100 proceeds to 1122.

1126, method 1100 is by having the second motor start-up driving engine of the power output capacity lower than DISG.For example, the starter of the routine that driving engine can be by comprising pinion shaft and miniature gears starts, this miniature gears optionally the engage engine flywheel with start the engine.The transmission system disconnect-type clutch is closed when the second electrical motor provides separately torque with rotary engine.And, offer driving engine to take fire at 1126 fuel and spark in cylinder, make driving engine rotate under its oneself power.Method 110 proceeds to 1128 after start the engine.

1128, method 1100 engages the transmission system disconnect-type clutchs, with can with from the transmission of torque of driving engine to wheel.In one example, engine speed increases until the speed of engine speed coupling DISG.This transmission system disconnect-type clutch is closed when engine speed mates the speed of DISG, to reduce, transmission system is introduced the possibility that torque is disturbed.After providing torque at engine starting and for wheel, method proceeds to and withdraws from.

The method that should be pointed out that Figure 11 only illustrates via the electrical motor (starter) of lower-wattage capacity or separately by an example of electrical motor (DISG) start the engine of higher capacity.Other example is also among expecting.For example, when the starter of DISG and lower-wattage capacity both moves, the starter of this DISG and lower-wattage capacity can be under different operating modes start the engine.But, if DISG is deactivated, otherwise during DISG will start this engine condition, the starter of lower-wattage capacity can start the engine after rotational automatic stopping at driving engine.For example, if be not deactivated, when DISG can start this driving engine and provide torque for transmission system, the starter of lower-wattage capacity can start the engine.On the other hand, if the starter motor of lower-wattage capacity is deactivated, when hanging down threshold level, this driving engine can be started by DISG, because the starter motor of lower-wattage capacity is unavailable when the drive train torque demand.

With reference now to Figure 12,, Figure 12 illustrates for the diagram of curves according to the exemplary sequential of the method start the engine of Figure 11.Vertical mark T ₁₀-T ₁₇Represent correlation time in this sequential.The sequential of Figure 12 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 12 represents the graph of relation of DISG and time.X-axis represents that time and time increase to the right from the left side of figure.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.The amount of the horizon 1202 available DISG torques of expression.When horizon 1204 is illustrated in DISG starting starting rolling motor, DISG can provide the amount of the torque of this change-speed box input.Poor expression between

horizon

1202 and 1204 is for the amount of the torque of start the engine starting starting rolling motor.

The second figure from the top of Figure 12 represents the graph of relation of engine speed and time.X-axis represents that time and time increase from the right side of the left lateral view of figure.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.

The 3rd figure from the top of Figure 12 represents the graph of relation of transmission system disconnect-type clutch state (for example, open or closed) and time.X-axis represents that time and time increase from the right side of the left lateral view of figure.Y-axis represents transmission system disconnect-type clutch state, and as shown in the figure top side transmission system disconnect-type clutch state be open and near X-axis be closed.

The 4th figure from the top of Figure 12 represents low power output starter state and the graph of relation of time.X-axis represents that time and time increase from the right side of the left lateral view of figure.Y-axis represents low power output starter state, and low power output starter state is engaged when trace is in higher level, and is separated when trace is in reduced levels.

The 5th figure from the top of Figure 12 represents the graph of relation of engine restart request state and time.X-axis represents that time and time increase from the right side of the left lateral view of figure.Y-axis represents the engine restart request state, and the engine restart request state is identified as startup or operation when trace is in higher level.And when trace during at reduced levels the engine restart request state do not regard as engine starting or operation, or expression engine stop.

In time T ₁₀, the underneath drive of DISG torque response is that the torque-demand (not shown) is in reduced levels.This drive train torque demand can produce from accelerator pedal or other devices, and can input in response to chaufeur.Driving engine also stops and the transmission system disconnect-type clutch is opened.Lower-wattage output starter does not engage and does not exist engine restart request.

In time T ₁₁, engine restart request is provided during less than threshold value 1204 in the DISG torque.This engine restart request can respond battery charge will state (SOC) or other situations propose.Low power output starter keeps inoperative and the transmission system disconnect-type clutch is closed momently thereafter.Closed transmission system disconnect-type clutch will be from the transmission of torque of DISG to driving engine, thereby the starting rolling motor.At DISG engine starting after the closed short time at least in part.In starting during rolling motor and can slide from the run duration transmission system disconnect-type clutch that engine stop accelerates to DISG speed at driving engine.

In time T 12, engine starting/operating needs response vehicle working condition (for example, the storage battery of charging and apply vehicle brake pedal) is transformed into low-level.Responding engine startup/operating needs transmission system disconnect-type clutch is opened and engine stop.DISG continues to provide torque to vehicle transmission system.

In time T ₁₂And T ₁₃Between, DISG torque output responds the driver requested torque (not shown) that increases and increases.Driving engine keeps shutting down and the transmission system disconnect-type clutch stays open.

In time T ₁₃, engine starting/operating needs response storage battery SOC is less than threshold value charge level (not shown) and is identified.As because the DISG torque is shown greater than threshold level 1204, low power output starter is activated.When driving engine was rotated by the starting of low power output starter, the transmission system disconnect-type clutch was opened.This low power output starter is deactivated when engine speed surpasses rolling motor starting rotation.

In time T ₁₄, the transmission system disconnect-type clutch is closed after engine speed reaches DISG speed.Engine starting/operating needs maintenance and DISG and driving engine provide torque to vehicle transmission system.

In time T 15, engine starting/operating needs is transformed into low-level to represent that driving engine will be stopped.After the after this short time, engine stop and transmission system disconnect-type clutch responding engine startup/operating needs are transformed into low-level and are opened.DISG continues to provide torque to vehicle transmission system.

In time T ₁₆, the driver requested torque of engine starting/operating needs response surpasses threshold value torque (not shown) and is identified.Engine restart so driving engine can be exported torque to increase the DISG torque to transmission system.Startup/the operation of low power output starter responding engine is transformed into higher level and is engaged.This low power output starter responding engine speed surpasses threshold velocity and disconnects.

In time T ₁₇, it is that disconnect-type clutch is closed that responding engine speed reaches the DISG speed transmission.Driving engine and DISG provide torque to vehicle transmission system after transmission system disconnect-type clutch closure.

By this way, driving engine can start by DISG or lower-wattage output starter.This lower-wattage output starter makes DISG only have the more substantial torque of DISG output of starting rolling motor capacity to transmission system such as fruit.And lower-wattage output starter makes engine speed reach DISG speed before transmission system disconnect-type clutch closure, and therefore not having torque to disturb in this vehicle transmission system can be noted.

Therefore, provide the method and system of Fig. 1-3 and Figure 11-12 with start the engine, comprising: during the first situation, when the transmission system disconnect-type clutch is closed with the first motor start-up driving engine; With during the second situation, when the transmission system disconnect-type clutch is to open with the second motor start-up driving engine.The method comprises that the power output capacity of horsepower output volume ratio the first electrical motor of this second electrical motor is low.The method comprises that this first electrical motor is the transmission system (DISG) in conjunction with starter/generator, and this transmission system disconnect-type clutch has the first side that is connected mechanically to double mass flywheel and the second side that is connected mechanically to this DISG.

In some instances, the method comprises that this first situation is the drive train torque of the wishing drive train torque during less than the second situation.The method comprises that this transmission system disconnect-type clutch responds the drive train torque of wishing and opens.The method comprise when the drive train torque of wishing and engine starting torque sum during greater than the threshold quantity of torque this transmission system disconnect-type clutch closed.The method comprises that also the first electrical motor is arranged on the downstream of driving engine, and the turbine transformer by rotating-wheel provides torque, when being arranged on the driving engine place and starting rolling motor speed lower than the engine idle rotating speed with this second electrical motor, do not provide torque with rotating-wheel by turbine transformer.

In other examples, provide the method and system of Fig. 1-3 and Figure 11-12 to be used for start the engine, comprising: when the torque-demand of hope during less than the first threshold amount via the first motor start-up driving engine; When the torque-demand of hope during greater than the first threshold amount via the second motor start-up driving engine; And provide separately enough torque with rotating-wheel by the first electrical motor under the operating mode of selecting.Therefore, different electrical motors can be during different situations start the engine.

The method comprises that this first electrical motor is the transmission system (DISG) in conjunction with starter/generator, and during the position of this DISG between transmission system disconnect-type clutch and change-speed box be arranged on hybrid vehicle powertrain systems.The method comprises by closed this transmission system disconnect-type clutch at least in part, and this DISG provides the rotation of the driving engine that torque stops with startup.The method also comprises when engine speed reaches threshold velocity from driving engine disconnection the second electrical motor.The method comprises that this second electrical motor comprises pinion shaft and miniature gears.The method comprises that this first threshold amount is along with the state of charge of storage battery changes.The method comprises that also this first threshold amount is along with the velocity variations of the first electrical motor.

Also provide the method and system of Fig. 1-3 and Figure 11-12 to be used for a kind of hybrid vehicle system, it comprises: driving engine; Optionally engage this driving engine and comprise the starter of miniature gears; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; And comprise can carry out with between the first starting period via this starter and between the second starting period via the controller of the non-transition instruction of this DISG start the engine.

In one example, this hybrid vehicle system also comprises additional instruction, with during the torque of hope is greater than the situation of threshold value via this starter start the engine.This hybrid vehicle system comprises that this driving engine starts by rotating this driving engine via this DISG, and comprises additional instruction, to disconnect this DISG from driving engine after the combustion incident of pre-determined number.This hybrid vehicle system also comprises additional instruction, driving engine is connected in this DISG after reaching DISG speed with the speed at driving engine.This hybrid vehicle system also comprises from the available power stage of this starter lower than from the available power stage of this DISG.This hybrid vehicle system also comprises additional instruction automatically stopping driving engine, and starts via DISG according to this driving engine of amount of available DISG output torque.

With reference now to Figure 13,, Figure 13 illustrates fuel metering and sprays so that the engine speed track of hope to be provided during engine starting.The method of Figure 13 can be used as in the non-transient state memory device that executable instruction is stored in the controller 12 shown in Fig. 1-3.

1302, whether method 1300 judges whether to require start the engine and transmission system disconnect-type clutch not to engage.When the engine starting variable was identified in memory device, method 1300 can judge that engine starting wishes.When transmission system disconnect-type clutch state variable was not identified in memory device, method 1300 can judge that the transmission system disconnect-type clutch does not engage.If method 1300 judgement engine startings be wish and the transmission system disconnect-type clutch be not engaged, method proceeds to 1304.Otherwise method 1300 proceeds to 1316.

1304, method 1300 is determined operating mode.Operating mode can include but not limited to the state of DISG speed, engine temperature, the time from engine rotation stops and transmission system disconnect-type clutch.Method 1300 proceeds to 1306 after operating mode is determined.

1306, method 1300 is determined the engine speed of hope according to face of fluid torque converter speed.And the cylinder air inlet of hope can be determined 1306, therefore can reach the speed of hope.In one example, (for example, the idling speed from the starting velocity of rotation to hope) can be with the engine speed modulation of hope to face of fluid torque converter speed afterwards to accelerate (run-up) at engine starting.Therefore, during engine starting after engine starting accelerates, engine speed is controlled to face of fluid torque converter speed and makes the transmission system disconnect-type clutch can be closed, does not form torque so that motor torque is passed to wheel and disturbs.If desired, driving engine can be via rotating this driving engine and rotated by starting with the starter outside DISG (for example, lower-wattage output starter).Method 1300 proceeds to 1308 after the engine speed of hope is selected.Should be pointed out that face of fluid torque converter speed and DISG speed are equivalent, because DISG is connected in face of fluid torque converter.

1308, regulate the fuel that is used for the first combustion incident and spray.In approaching, the top that driving engine is included in combustion chamber in an example of the fuel oil atomizer of heart setting, sprays at least one cylinder via single fuel impulse fuel during the compression stroke of this cylinder and in the single cycle period of this cylinder.Participate in the first combustion incident that stops from driving engine after the fuel that sprays so that cylinder receives fuel.Single fuel impulse is injected give cylinder after, at the engine starting period of acceleration, spray can be with a series of impulse jets, as described 1310 for fuel during the air inlet of the cylinder that receives fuel and compression stroke.In one example, during the compression stroke of this cylinder to the single fuel impulse of each injection of the engine cylinder of predetermined number.Therefore, in the mode of one or more pulse, fuel is sprayed each cylinder to predetermined number in cycle period of the cylinder that receives fuel.For example, for four-banger, two engine cylinders receive single fuel injection during this cylinder compression stroke separately that receives single fuel injection.Two other engine cylinder receives multiple fuel injection during the air inlet of the cylinder that receives fuel and/or compression stroke.

Comprise in second example that the fuel of the side that is arranged on combustion chamber sprays at driving engine, during having received the compression stroke of fuel for the cylinder of first combustion incident of the cylinder since engine stop, the multiple fuel injection of each cylinder is delivered to the engine cylinder of predetermined number.During the compression stroke of the cylinder that receives fuel, after the cylinder of predetermined number received multiple fuel injection, during the air inlet and/or compression stroke of the cylinder that receives fuel, multiple fuel injection can offer each cylinder.In addition, can be according to the position of the engine speed modulation engine air throttle of hope 1308.In one example.The engine air throttle opening increases when the engine speed of wishing increases during engine starting rotates.Method 1300 proceeds to 1310 after the burner oil of combustion incident for the first time that is each engine cylinder.

1310, method 1300 is regulated sectional type/split (split) fuel injection timing and fuel quantity according to the velocity contrast between the engine speed of the engine speed of hope and actual engine speed and hope.Specifically, under lower engine speed (for example, between starting velocity of rotation 250RPM and 400RPM), during the compression stroke of each cylinder that receives fuel, more than twice or twice, injection offers each engine cylinder.Under medium engine speed (for example, between 400RPM and 700RPM), provide multiple fuel injection during the inspiration stroke of each cylinder that receives fuel and compression stroke.Under higher engine speed (for example, between 700RPM and 1000RPM), only provide multiple fuel injection during the inspiration stroke of the cylinder that receives fuel.Certainly, lower, medium and higher engine speed can be different between using.For example, for other application, lower engine speed can be between 200RPM and 300RPM, and medium engine speed can be between 300RPM and 800RPM, and higher engine speed can be between 800RPM and 1100RPM.Therefore, if the engine speed of wishing is higher engine speed, can the fuel metering injection timing when driving engine reaches the engine speed of hope only to provide multiple fuel injection during the inspiration stroke of the cylinder that receives fuel.If the engine speed of wishing is medium engine speed, can the fuel metering injection timing to provide multiple fuel injection during the inspiration stroke of the cylinder that receives fuel and compression stroke.Sectional type fuel injection timing provides improved fuel mix and reduces emissions from engines under higher engine speed.Sectional type fuel sprays the possibility that combustion stability is provided and reduces engine off during compression and inspiration stroke.

At the engine starting period of acceleration, when engine speed (for example starts velocity of rotation from transmission, when 250RPM) being increased to the idling speed of hope, spray and (for example finish (EOI), the last fuel impulse timing to cylinder injection of cylinder cycle period is occuring) and applied ignition between time quantum substantially remain unchanged (for example, ± 3 degree).Due to the time decreased between crank positions different when engine speed increases, the EOI timing is shifted to an earlier date with respect to crankshaft timing, to keep substantially constant time quantum (for example, ± 0.05 second) between EOI and applied ignition.And after multiple fuel injection was completed, the timing that is increased in cylinder each fuel injection of cycle period along with engine speed can shift to an earlier date.Therefore,, along with increasing, engine speed can shift to an earlier date at cylinder cycle period fuel injection beginning (SOI) at the engine starting period of acceleration.

If the engine speed of wishing greater than the engine speed of reality, increases by increasing the duration of charge fuel injection amount.Additional air also can offer driving engine by opening out the throttle.If the engine speed of wishing less than the engine speed of reality, reduces by reducing the duration of charge fuel injection amount.Engine air tolerance reduces by closed throttle gate.And, can respond transmission system disconnect-type clutch regulating working conditions fuel injection timing and fuel quantity, in order to first send out the fuel metering injection timing.For example, if the transmission system disconnect-type clutch is closed, and driving engine one side of transmission system disconnect-type clutch is rotated slower than DISG one side of transmission system disconnect-type clutch, can increase fuel injection amount,, and thereby reduce drive train torque and disturb more near DISG speed with boost engine.On the other hand, if the transmission system disconnect-type clutch is closed, and driving engine one side of transmission system disconnect-type clutch is rotated faster than DISG one side of transmission system disconnect-type clutch, can reduce fuel injection amount, with geared-down engine more near DISG speed.And, if the transmission system disconnect-type clutch is opened, can be used as the function minimizing fuel injection amount that the transmission system disconnect-type clutch should be exerted oneself, arrive idling speed and thereby reduce drive train torque and disturb with geared-down engine.Equally, if the transmission system disconnect-type clutch is opened, can be used as the function increase fuel injection amount that the transmission system disconnect-type clutch should be exerted oneself, arrive idling speed and thereby reduce drive train torque and disturb with boost engine.

In some instances, the fuel injection timing of engine cylinder is adjusted to the cylinder stroke that changes along with engine speed.For example, if the velocity contrast between the engine speed of actual engine speed and hope increases, method 1300 is from compression stroke to the inspiration stroke fuel metering.By changing injection stroke according to the velocity contrast between reality and engine speed that wish, can improve air-fuel and mix and promote burning more completely, therefore can reduce velocity contrast.

Engine throttle position is regulated in the timing that can respond when fuel sprays to cylinder in addition.For example, the admission port throttle gate is can be partly closed, with when only during inspiration stroke during burner oil to increase charge motion.When fuel sprayed fuel during the compression stroke and sprays fuel during being converted to inspiration stroke and spray, the admission port throttle gate can partly be opened.And, spray to the fuel quantity of this cylinder and can regulate according to the amount of air that flows through throttle gate in cylinder cycle period.Method 1300 proceeds to 1312 after the fuel metering injection timing.

1312, the velocity contrast between the engine speed of the state of method 1300 response transmission system disconnect-type clutchs and the engine speed of hope and reality is regulated spark timing.Specifically, when engine speed substantially DISG speed (for example, ± 100RPM) time, S. D is to produce the level of zero torque at the transmission system disconnect-type clutch.And S. D also can provide according to the velocity contrast between DISG and driving engine.When the velocity contrast between driving engine and DISG reduced, the S. D amount increased.

1314, method 1300 judges whether the transmission system disconnect-type clutch has been closed into threshold quantity (for example, providing 80% power-transfer clutch holding torque).The transmission system disconnect-type clutch can be closed when engine speed is in the predetermined speed of face of fluid torque converter speed, makes by the torque of transmission system to disturb and can reduce.If method 1300 judgement transmission system disconnect-type clutchs have been closed into threshold quantity, method proceeds to 1316.Otherwise method 1300 proceeds to 1304.

1316, method 1300 early spark timings and according to spraying from the number of times of the later combustion incident of engine stop or according to the fuel that torque ratio is converted to the single fuel injection of cylinder cycle period.For example, after transmission system disconnect-type clutch closure, method 1300 can be sprayed from sectional type fuel and is converted to the cylinder single fuel injection of cycle period after 10 combustion incidents.Alternately, spark timing advanceed between spark timing and fuel injection timing torque ratio less than threshold quantity just after, method 1300 can be sprayed from sectional type fuel and is converted to the cylinder single fuel injection of cycle period.After in fuel injection timing and spark timing are converted to the basic timing of rule of thumb determining and are stored in memory device, method 1300 proceeds to and withdraws from.

With reference now to Figure 14,, Figure 14 illustrates according to the method for Figure 13 diagram of curves to the exemplary sequential of driving engine feed fuels.The sequential of Figure 14 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 14 represents the fuel injection timing for a cylinder.X-axis represents the cylinder stroke of a cylinder of gas, and the representational letter representation of each cylinder stroke.For example, inspiration stroke represents with I, and compression stroke represents with C, and expansion stroke represents with P, and exhaust stroke represents with E.Y-axis represents that fuel sprays.

The second figure from the top of Figure 14 represents the face of fluid torque converter speed of wishing and the curve relation figure of a cylinder stroke.The X-axis timing is consistent with the timing of the first figure from the top of this figure.The face of fluid torque converter speed that Y-axis represents the face of fluid torque converter speed of wishing and hope increases along the direction of Y-axis arrow.

The 3rd figure from the top of Figure 14 represents the engine speed of wishing and the curve relation figure of a cylinder stroke.The X-axis timing is consistent with the timing of the first figure from the top of this figure.The engine speed that Y-axis represents the engine speed of wishing and hope increases along the direction of Y-axis arrow.

The 4th figure from the top of Fig. 4 represents actual engine speed and the curve relation figure of a cylinder stroke.The X-axis timing is consistent with the timing of the first figure from the top of this figure.Y-axis represents that the engine speed of actual engine speed and reality is along the direction increase of Y-axis arrow.

The engine speed that the 5th chart from the top of Fig. 4 is wished and actual engine speed with between velocity contrast (delta motor speed) and the curve relation figure of a cylinder stroke.The X-axis timing is consistent with the timing of the first figure from the top of this figure.The engine speed that Y-axis represents the engine speed of wishing and hope increases along the direction of Y-axis arrow.

In time T ₁₈, the face of fluid torque converter speed of engine stop and hope is zero.In time T ₁₈Engine rotation afterwards, the circulation of the different strokes by a cylinder.The single fuel injection amount directly offers cylinder No. one for the first time during a compression stroke cylinder.Begin to accelerate from first combustion incident driving engine during first compression stroke after engine stop.

In time T ₁₉, provide twice fuel to spray during second compression stroke of a cylinder.Velocity contrast between the engine speed that fuel injection response is wished and actual engine speed is converted to twice injection.And, provide fuel to spray during the cylinder stroke that is decided by the difference between engine speed actual and that wish.In one example, be used for that fuel injection timing according to the cylinder stroke of the difference between reality and engine speed that wish is stored in table and according to velocity contrast output cylinder stroke.By in the situation that according to poor between reality and engine speed that wish, fuel occurs and spray and regulate cylinder stroke, fuel mix and the engine speed that can improve during engine starting are controlled.

In time T ₁₉And T ₂₀Between, the further fuel metering injection timing of difference between the engine speed that response is actual and the engine speed of hope.Can see, twice fuel during the compression stroke cylinder be ejected into that primary fuel during inspiration stroke sprays and compression stroke during the fuel that sprays of primary fuel spray variation.And the fuel injection is converted to twice burner oil during inspiration stroke.

In time T ₂₀, the engine speed error between the engine speed of hope and actual engine speed become zero and each cylinder cyclic spray fuel once.By this way, can responding engine speed course latitude error fuel metering injection timing, to provide fuel during different engine strokes.And power fuel metering injection timing and the spark timing that can respond transmission system disconnect-type clutch state or apply are as what discuss about Figure 13.

Also provide the method and system of Fig. 1-3 and Figure 13-14 for the cylinder air inlet of regulating driving engine, comprising: the position of locating throttle gate for engine starting; And cylinder fuel injection timing is adjusted to the cylinder stroke that changes along with poor variation the between the engine speed of hope and actual engine speed, and the amount of the fuel that offers this cylinder is regulated in response by the amount of air of throttle gate.The method comprises that the stroke of cylinder changes to inspiration stroke from compression stroke.The method comprises that this throttle gate is the admission port throttle gate.

In some instances, the method also be included in fuel during compression stroke between injection period the admission port throttle gate closed at least in part.The method also be included in fuel during the inspiration stroke of cylinder between injection period the admission port throttle gate open.The method also be included in cylinder one cycle period the fuel injection timing provide at least twice fuel to spray.The method comprises that the fuel injection timing offers the fuel oil atomizer that injects fuel directly in this cylinder.

The cylinder air inlet of the method and system of Fig. 1-3 and Figure 13-14 for driving engine also is provided, comprises: the position of locating throttle gate for engine starting; Provide spark in cylinder cycle period to the combustion chamber of cylinder; And the fuel metering injection timing is when keeping spark and fuel substantially constant time quantum sprays repeatedly fuel impulse in cycle period of cylinder simultaneously between spray finishing when engine speed increases at the engine starting period of acceleration; And response regulates by the amount of air of throttle gate the fuel quantity that offers cylinder.By this way, can keep the conformability of burning.

The method also comprises, the fuel injection timing is by in advance when engine speed increases.The method also comprises the fuel injection timing corresponding to the engine speed of hope, and the engine speed of wishing is based on face of fluid torque converter speed.The method also comprises closed transmission system disconnect-type clutch when engine speed is in the threshold velocity of face of fluid torque converter speed.The method comprises that also the cylinder stroke of spraying repeatedly fuel impulse therebetween changes and changes along with engine speed.The method also is included in engine starting period of acceleration spark timing and changes.The method comprises that also throttle gate is arranged on the admission port throttle gate in induction maniflod downstream.

The method and system of Fig. 1-3 and Figure 13-14 also provides a kind of hybrid vehicle system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; And the controller that comprises executable non-transition instruction, with the engine speed countercylinder fuel metering injection timing that response is wished, the face of fluid torque converter speed the when engine speed of this hope is not connected mechanically to driving engine based on face of fluid torque converter.

This hybrid vehicle system also comprises additional instruction, with closed this transmission system disconnect-type clutch after engine speed is in the threshold velocity of face of fluid torque converter speed.This hybrid vehicle system comprises that this driving engine starts by rotating this driving engine via the starter outside this DISG.This hybrid vehicle system also comprises additional instruction, spray thereby remain on the fuel that cylinder cycle period is delivered to the spark timing of cylinder and is delivered to cylinder when engine speed increases at the engine starting period of acceleration with the fuel metering injection timing the substantially invariable time quantum that finishes between timing, and spray repeatedly fuel impulse in this cylinder cycle period.This hybrid vehicle system also comprises additional instruction, cylinder fuel injection timing being adjusted to the cylinder stroke that changes along with poor variation the between the engine speed of hope and actual engine speed, and response regulates by the amount of air of throttle gate the fuel quantity that offers this cylinder.This hybrid vehicle system also comprises additional instruction, with during the compression stroke at this cylinder before first combustion incident of this cylinder later from engine stop to the single fuel impulse of this cylinder injection.

With reference now to Figure 15,, after Figure 15 is illustrated in shifting of transmission, when the torque that provides by electrical motor cannot provide the amount of torque of hope, be used for the diagram of circuit of the method for start the engine.The method of Figure 15 is stored in as executable instruction in the memory device of non-transition of the controller 12 in Fig. 1-3.

1502, method 1500 judges whether to wish or order change-speed box upshift.In one example, the order of change-speed box upshift can be by responding car speed, requiring the control variable of the gear change state of torque and current selection to determine.If the control variable indication wishes that change-speed box upgrades, method 1500 proceeds to 1506.Otherwise method 1500 proceeds to 1504.

1504, method 1500 is determined transmission output shaft speed and face of fluid torque converter speed according to the torque of hope, is used for next shifting of transmission on the horizon.The torque of the hope that provides via change-speed box shelves and the car speed of accelerator pedal, current selection in one example, is be used to being identified for change-speed box output speed that next change-speed box upgrades and the basis of pump impeller speed.Specifically, change-speed box output speed and next gear can be determined from gear and the speed of a motor vehicle of current selection, next gear that the change-speed box plan upgraded and wished the motor torque level to being in this moment.The gear shift plan can rule of thumb determine and be stored in memory device, and this memory device output which shelves under the level of torque of the current speed of a motor vehicle and hope are selected.Can know the car speed of future time by inference according to y=mx+b according to rate of change or the slope of current vehicle speed and the speed of a motor vehicle, wherein y is the speed of a motor vehicle of prediction, and m is speed of a motor vehicle slope, and b is speed of a motor vehicle compensation.The pump impeller speed of equally, the time in the future being wished can be known by inference.(for example increase when time from the current time of interpolation, the current time adds 0.2 second, and supposition increases the torque of car speed and/or hope) time, the variable that the gear shift plan can order the higher shelves (for example, from first grade to second gear) that upgrade to change as index gear shift plan.According to the gear shift plan when the transmission gear of selecting changes, during the torque of the time quantum (for example time of projection) of the interpolation when shifting of transmission occurs and new shelves number, the speed of a motor vehicle of knowing by inference and the hope of knowing by inference is stored in memory device.Transmission output shaft speed is determined from new gear (gear for example upgrades), any axle ratio and the speed of a motor vehicle.Transmission pump wheel speed can be from the DISG prediction of speed, because DISG is connected mechanically to this pump impeller.Method 1500 proceeds to 1506 after transmission pump wheel speed and transmission output shaft speed are determined.

1506, method 1500 is determined speed, transmission (for example, pump impeller speed and output shaft speed) and is used for the upgrade gear ratio of gear torque-demand of next change-speed box.Method 1500 is determined transmission output shaft speed according to following equation:

OSS=OSS_when_commanded+OSS_ rate of change * time_to_shift;

Commanded_gear=gearfn(vs,dsd_tor)；

TSS_after_upshift=OSS*Commanded_gear；

Wherein OSS is transmission output shaft speed, OSS_when_commanded is the transmission output shaft speed when order upgrades, ime_to_shift is the required time quantum of gear shift, Commanded_gear is the gear that upgrades and work afterwards, gearfn is the function of the gear of return command, vs is car speed, and dsd_tor is the gear-box input torque of wishing, and TSS_after_upshift is the transmission output shaft speed afterwards that upgrades.Function f n keeps change-speed box with the gear shelves of rule of thumb determining of its operation.Method 1500 proceeds to 1508 after speed, transmission and gear ratio are determined.

1508, transmission output shaft torque and the change-speed box turbine shaft torque of the hope after method 1500 is determined to upgrade.In one example, method 1500 is determined gear-box output torque and turbine shaft torque according to following equation:

OUTq_dsd=outfn(accel_pedal,TSS_after_upshift)；

Turq_dsd=OUTq_dsd*mult+offset；

Wherein OUTq_dsd is the transmission output shaft torque of wishing, outfn is the function that returns to the transmission output shaft torque of hope, accel_pedal is to provide the accelerator pedal position of the torque of hope, TSS_after_upshift is the transmission output shaft speed afterwards that upgrades, Turq_dsd is the change-speed box turbine shaft torque of wishing, mult and offset are the parameters of rule of thumb determining that is stored in the function of gear, transmission oil temperature and transmission output shaft speed index by order.In the transmission output shaft torque of hope and the change-speed box turbine shaft torque after upgrading be determined after method 1500 proceed to 1510.

1510, whether method 1500 judgements changer power-transfer clutch (TCC) after upgrading will be opened.In one example, whether method 1500 will be opened according to the gear shift plan judgement TCC after upgrading that rule of thumb determines that is stored in memory device.For example, according to current shelves, next predetermined shelves and the torque of wishing, the gear shift plan can be planned closed turbine transformer.If method 1500 judgement TCC after upgrading will open, answer is "yes" and method 1500 proceeds to 1512.Otherwise answer is that "No" and method 1500 proceed to 1514.

1512, method 1500 is determined the face of fluid torque converter torque of order.In one example, the table search of face of fluid torque converter torque from be stored in memory device of this order.This table comprises the value of the face of fluid torque converter torque of rule of thumb determining, these values are by the turbine shaft torque index of the transmission output shaft speed after upgrading and hope.Method 1500 proceeds to 1516. after the impeller torque of order is determined

1514, method 1500 arrives with the face of fluid torque converter torque adjustment of hope the transformer turbine torque of wishing, because TCC is in lock-out state.Method 1500 proceeds to 1516 after the face of fluid torque converter torque of hope is determined.

1516, whether the face of fluid torque converter torque that method 1500 judgements are wished after change-speed box upgrades will require the engine combustion air-fuel mixture.In one example, the relatively amount of torque that provides at the capacity of current battery charge will state of DISG and the face of fluid torque converter torque of hope of method 1500.If the face of fluid torque converter torque of wishing greater than or in the threshold value amount of torque of DISG torque capacity, answer is "yes" and method 1500 proceeds to 1520.Otherwise answer is that "No" and method 1500 proceed to 1518.

1518, method 1500 can make driving engine stop the rotation according to current operating mode, or method 1500 can make the driving engine air-fuel mixture that can burn away.In one example, in the situation that driving engine has reached pre-thermal condition, because the face of fluid torque converter torque of hope does not require the driving engine operation, the engine stop rotation.When driving engine did not reach pre-thermal condition, driving engine can burn away.Method 1500 proceeds to and withdraws from after the incoherent operating mode of basis and shifting of transmission allows or stops engine rotation.

1520, method 1500 judgement start the engine whether before change-speed box upgrades.Can start the engine before the state (for example, not comprising the transmission system disconnect-type clutch) of transmission clutch is conditioned, so that motor torque can pass to wheel when shift end.Alternately, can start the engine when one or more transmission clutch changes running state during upgrading.In one example, when the expection driving engine spend than expection shift time, the longer time produced positive torque the time, driving engine upgrade begin before and can start the engine before transmission clutch begins the change state.If start the engine was wished in method 1500 judgements before change-speed box upgrades, method 1500 proceeds to 1522.Otherwise method 1500 proceeds to 1526.

1522, method 1500 start the engines and joint transmission system disconnect-type clutch.This driving engine can rotate this driving engine or start rolling motor by DISG by the starter that use has a power output capacity lower than DISG and start.And shifting of transmission can postpone until engine speed is synchronizeed with DISG or pump impeller speed.If motor torque increases before (resignation) power-transfer clutch of being relieved of one's office discharges fully, postpone shifting of transmission and can reduce contingent drive train torque interference.Method 1500 proceeds to 1524 after engine starting and transmission system disconnect-type clutch unclamp.

1524, method 1500 upgrades change-speed box after the transmission system disconnect-type clutch engages.Change-speed box can be by means of one or more power-transfer clutch that affects transmission of torque by change-speed box being applied and/or hold-off pressure upgrades change-speed box.Method 1500 proceeds to and withdraws from after shifting of transmission.

1526, if the situation that stops engine rotation except change-speed box on the horizon upgrades exists, method 1500 stops engine stop.In other words, only change-speed box upgrades else if that driving engine is stopped by order, is prevented from so change-speed box stops engine rotation.In addition, the moment after beginning of upgrading (for example, unclamping the resignation power-transfer clutch during (torque phase) or use and take over power-transfer clutch (during inertia phase)) can start the engine transmission system is provided additional torque to satisfy torque-demand.Driving engine and DISG torque can be adjusted to provide the face of fluid torque converter amount of torque of hope.After change-speed box upgraded beginning, method 1500 proceeded to and withdraws from after engine stop is prevented from or after engine starting.

By this way, method 1500 can predict that the face of fluid torque converter torque of shifting of transmission and hope is to determine when closed transmission system disconnect-type clutch and start the engine.Method 1500 can seamlessly be combined with the DISG torque motor torque, so that level and smooth acceleration to be provided during shifting of transmission.

When with reference now to Figure 16,, Figure 16 illustrates for determine the diagram of curves of the exemplary sequential of start the engine according to method shown in Figure 15.The sequential of Figure 16 can provide by the system of Fig. 1-3.

The first figure from the top of Figure 16 represents the drive train torque of wishing and the graph of relation of time.The drive train torque of wishing can be the face of fluid torque converter torque of wishing, the transformer turbine torque of hope, wheel torque or other drive train torques of hope.The drive train torque of this hope can be determined from accelerator pedal position or other input medias.The drive train torque that solid-line trace 1602 expressions are wished.The drive train torque (for example, the hope drive train torque after the change-speed box gear shift) of the hope of the trace 1604 expression predictions of dotted line.Y-axis represents to wish drive train torque and wishes that drive train torque increases along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.Horizon 1606 expressions can be offered by DISG the torque limit of transmission system.

The second figure from the top of Figure 16 represents the graph of relation of change-speed box shelves and time.Y-axis represents that change-speed box shelves and specific change-speed box shelves illustrate along Y-axis.X-axis represents that time and time increase from the right side of the left lateral view of figure.The solid-line trace 1608 current or actual change-speed box shelves of expression.Dotted line trace 1610 represents change-speed box shelves prediction or future.

The 3rd figure from the top of Figure 16 represents not exist the hope engine condition of change-speed box gear shift situation and the graph of relation of time.Y-axis represents the engine condition of wishing and is running state and be stopped status for lower trace level for the engine condition that higher trace level is wished.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 16 represents based on the engine condition of the hope of all situations and the graph of relation of time.Y-axis represents the engine condition of wishing and is run mode and be stopped status for lower trace level for the engine condition that higher trace level is wished.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 16 represents the graph of relation of engine condition and time.Y-axis represents the engine condition of wishing and is run mode and be stopped status for lower trace level for the engine condition that higher trace level is wished.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₂₁, the drive train torque of hope is greater than being offered by DISG the torque of this transmission system.Change-speed box is in the 5th grade and the engine condition of wishing and the engine condition that does not have the hope of gear situation both is in the higher level that expression wishes that driving engine moves.Engine condition is in the higher level that the expression driving engine is moving.

In time T ₂₁And time T ₂₂Between, the drive train torque that the chaufeur input (not shown) that response reduces is wished reduces.The change-speed box shelves of change-speed box from the 5th grade of downshift to second gear and prediction point to current or actual change-speed box shelves.Do not exist the engine condition of hope of gear situation and the engine condition of hope to remain on higher level.

In time T 22, do not exist the transmission state response car speed of gear situation and the drive train torque of hope to be converted to reduced levels, do not stop if expression has Transmission gear situation driving engine can respond vehicle and engine operating condition (for example apply braking, do not apply accelerator pedal and car speed less than threshold velocity).The engine condition of wishing also is converted to reduced levels, comprises that with the expression response operating mode of the change-speed box shelves of prediction stops driving engine.The engine condition that engine response is wished and stopping.

In time T ₂₂And time T ₂₃Between, the drive train torque held stationary of hope and then increase.When the drive train torque of hope increased, the change-speed box shelves of prediction rose to third gear from second gear.Current change-speed box shelves remain on second gear.Due to the engine condition of hope with do not exist the engine condition of the hope of gear situation to remain on reduced levels, so driving engine keeps stopping.

In time T ₂₃, after greater than 1606 level, the drive train torque of the hope of the engine condition response prediction of hope increases and is converted to higher level in gear shift.Driving engine can respond this hope engine condition transformation and start.The drive train torque driving engine of hope that does not increase expectation with expression shifting of transmission after do not exist the engine condition of the hope of gear situation to remain on reduced levels, if will keep shutdown.

In time T ₂₃And T ₂₄Between, the drive train torque of hope increases and the driver requested (not shown) that reduces of response and reducing then.The drive train torque of wishing reduces to and is less than 1606 level and remains near level 1606.Change-speed box is from the 5th grade of third gear that lowers category.The engine condition of wishing and do not exist the engine condition of the hope of gear situation to remain on higher level, so driving engine keeps moving.

In time T ₂₄, the engine condition of hope is converted to lower level, can respond drive train torque, the car speed (not shown) of hope and the braking (not shown) that applies and stopping with the expression driving engine.But the level that the drive train torque of the hope of the engine condition response prediction of hope is increased to greater than 1606 remains on higher level, predicts to fourth speed as shifting of transmission.Therefore, engine stop is prevented from.When vehicle is moving and this situation can occur during when chaufeur pine accelerator pedal.

In time T ₂₄And T ₂₅Between, the drive train torque of hope increases and then reduces.Torque, car speed (not shown) and the braking mode (not shown) gear shift between the 3rd and the 5th grade that the change-speed box response is driver requested.Do not exist the drive train torque that the engine condition response of the engine condition of hope of gear situation and hope is wished to remain on higher level.

In time T ₂₅, the lower driver requested (not shown) of drive train torque response of hope is reduced to less than level 1606.Do not exist drive train torque, brake pedal status (not shown), the car speed (not shown) that the engine condition response of the engine condition of hope of gear situation and hope is wished to be converted to lower level, the expression driving engine will be stopped.The engine condition that engine response is wished and stopping.

In time T ₂₅And T ₂₆Between, the drive train torque of hope increases gradually and the change-speed box shelves that respond the drive train torque prediction of this increase are elevated to third gear from second gear.The engine condition of wishing and do not exist the engine condition of the hope of gear situation to remain on lower level, and the driving engine maintenance stops.

In time T ₂₆, the engine condition of hope is converted to higher level, and the change-speed box shelves of the drive train torque of the hope that increases of engine response and prediction and starting.Do not exist the engine condition of the hope of gear situation to remain on low-level, if be added to level greater than 1606 with the drive train torque of the hope that not have after the shifting of transmission that is illustrated in prediction to predict, driving engine will not start.By start the engine before actual gear shift, can provide the drive train torque of hope after gear shift.

By this way, can start the engine before gear shift so that the drive train torque of hope to be provided after gear shift.And the method prediction gear shift makes can start the engine before the real drive train torque that requires to wish.Start the engine can allow driving engine to reach it and can export torque to satisfy the situation of the drive train torque of wishing earlier.

The method and system of Fig. 1-3 and Figure 15-16 provides the method for start the engine, comprising: the torque of the hope after the prediction shifting of transmission; If with the torque of hope after the shifting of transmission of prediction greater than the threshold value of torque start the engine.The method comprises that the torque of this hope is the face of fluid torque converter torque, and the torque wished of prediction and to start rotation be to provide torque to vehicle at transmission system integrated actuating machine/electrical generator, and change-speed box is in D Drive and vehicle during mobile situation.The method comprises that the torque of hope is to predict according to predetermined shifting of transmission plan.

In some instances, the method comprises that the rotation of driving engine starts by the transmission system disconnect-type clutch.The method comprises that this transmission system disconnect-type clutch disconnected before rolling motor.During the method comprises that this transmission system disconnect-type clutch is arranged on the motor vehicle driven by mixed power driver between double mass flywheel and transmission system integrated actuating machine/electrical generator.Comprise the drive train torque of driving engine hope of response prediction before shifting of transmission and rotate in method.

Provide the method and system of Fig. 1-3 and Figure 15-16 to be used for start the engine, comprising: provide torque by electrical motor to vehicle transmission system; Predetermined change-speed box upgrades; If with the threshold quantity of the torque of wishing after predetermined change-speed box upgrades greater than torque, respond this predetermined change-speed box and upgrade and start the engine rotation that stops, and the torque of this hope is based on upgrade transmission system integrated actuating machine/generator torque after timing of the change-speed box at the joined speed variator power-transfer clutch relevant with start the engine.The method comprises that this electrical motor is during transmission system integrated actuating machine/electrical generator (DISG) and the position of this DISG between this transmission system disconnect-type clutch and change-speed box are arranged on this motor vehicle driven by mixed power.

In some instances, the method comprises by closed this transmission system disconnect-type clutch at least in part, the engine rotation that this DISG provides torque to stop with startup.After the method also is included in the start the engine rotation, change-speed box upgrades.The method comprises that also this change-speed box is two tween drive shaft-dual-clutch transmissions.The method comprises that this change-speed box is automatic transmission with hydraulic torque converter.The method also comprises if the torque of wishing after the change-speed box that engages the transmission clutch relevant with start the engine upgrades timing less than the threshold quantity of torque, makes the permission machine stop the rotation.

The method and system of Fig. 1-3 and Figure 15-16 provides a kind of motor vehicle driven by mixed power, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator that mechanically comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, start this driving engine with the torque that responds the hope of predetermined change-speed box after upgrading by closed this transmission system disconnect-type clutch, the predetermined change-speed box of response upgrades and started this driving engine before shifting of transmission.Such system can improve the transmission system response time.

In one example, this hybrid vehicle system also comprises additional instruction, if driving engine is rotating stoping and stops engine rotation before predetermined change-speed box upgrades.This hybrid vehicle system comprises that closed this transmission system disconnect-type clutch of response starts this driving engine by rotating this driving engine via transmission system integrated actuating machine/electrical generator.This hybrid vehicle system comprises additional instruction, upgrades to make change-speed box after engine starting.This hybrid vehicle system also comprises additional instruction, allows engine stop with the torque that responds the hope of predetermined change-speed box after upgrading.This hybrid vehicle system also comprises additional instruction, is pre time less than the threshold time amount with the delay start engine direct to predetermined shifting of transmission.

With reference now to Figure 17,, Figure 17 illustrates for the diagram of circuit of start the engine with the method that reduces change-speed box input during shifting of transmission.The method of Figure 17 can be stored in the non-transient state memory device shown in Fig. 1-3 as executable instruction.The method of Figure 17 can reduce during vehicle operating DISG amplitude and/or the number of times that torque changes occurs, to be limited in the torque that imposes on change-speed box during shifting of transmission.

1702, method 1700 judges whether driving engine restarts and whether wishes that change-speed box upgrades.Can require engine restart during for example, when the drive train torque increase that requires or when the chaufeur loosen the brake.For example, change-speed box upgrades and can respond car speed and the drive train torque demand is come requirement.In one example, the shifting of transmission plan be rule of thumb determine and be stored in memory device with by car speed and drive train torque demand index.If method 1700 determines that change-speed box upgrades and requires engine starting, method 1700 proceeds to 1704.Otherwise method 1700 proceeds to and withdraws from.

1704, method 1700 judges whether DISG is available.According to the DISG status indicator in memory device, method 1700 can judge whether DISG is available.Alternately, method 1700 can judge whether available DISG according to the operating mode such as the battery charge will state.For example, if SOC less than threshold level, DISG may be disabled.In another example, if the DISG temperature higher than threshold value, DISG may be disabled.If the method 700 available DISG of judgement, answer is "yes" and method 1700 proceeds to 1712.Otherwise answer is that "No" and method 1700 proceed to 1706.

1706, method 1700 discharges with predetermined speed (off-going) power-transfer clutch of being relieved of one's office.This resignation power-transfer clutch is lower shelves during upgrading.For example, the resignation power-transfer clutch unclamps the second gear power-transfer clutch during second gear rises third gear.Power-transfer clutch unclamp speed can be rule of thumb determine and be stored in when upgrading with box lunch in memory device and should can unclamp to be stored in the memory device medium-rate by the resignation power-transfer clutch.Method 1700 proceeds to 1708 after unclamping the resignation power-transfer clutch.

1708, method 1700 begins to use takes over (on-coming) power-transfer clutch with the higher shelves of joint after having measured in predetermined time since the resignation power-transfer clutch that unclamps this order.This is taken over power-transfer clutch and can apply by this oil pressure of taking over power-transfer clutch of increasing supply.Predetermined time amount can be rule of thumb determine and be stored in memory device in order to utilize during upgrading.In one example, taking over power-transfer clutch uses in the possibility of the wearing and tearing that reduce the resignation power-transfer clutch by the outgoing side that accelerates this resignation power-transfer clutch.Application take over power-transfer clutch begin after method 1700 proceed to 1710.

1710, method 1700 is used with the speed of controlling or is begun closed transmission system disconnect-type clutch to reduce the input shaft torque.Specifically, driving engine is by the input side applied load of closed transmission system disconnect-type clutch to turbine transformer, in order to reduce the speed of face of fluid torque converter speed.By this way, pass to the amount of torque minimizing of input shaft by turbine transformer.In one example, this transmission system disconnect-type clutch speed can be regulated according to face of fluid torque converter speed when using the transmission system disconnect-type clutch.For example, increase transmission system disconnect-type clutch applying pressure until face of fluid torque converter speed be reduced to threshold quantity and then transmission system disconnect-type clutch applying pressure no longer increase.Due to the transmission system disconnect-type clutch from the input side transmitting torque of change-speed box to driving engine, the amount of torque that therefore passes to driving engine from change-speed box is limited according to this pump impeller speed.Increase transmission system disconnect-type clutch applying pressure and this transmission system disconnect-type clutch closed at least in part after method 1700 proceed to 1722.

1712, method 1700 is unclamped the resignation power-transfer clutch with predetermined speed.Unclamping the resignation power-transfer clutch makes it possible to use higher shelves and does not have torque to transmit via two different shelves.The resignation power-transfer clutch can be rule of thumb determine and be stored in memory device and be used for retrieval during upgrading.Unclamp the resignation power-transfer clutch begin after method 1700 proceed to 1714.

1714, method 1700 increases DISG output torque and offers the torque of face of fluid torque converter with increase.In one example, DISG torque increase is used for driving engine is accelerated to the amount of torque of the engine speed of hope.This DISG torque increases by the amount that increase offers the electric current of DISG.In other examples, DISG output torque can reduce to lower gear-box input torque.After increasing the DISG torque, method 1700 proceeds to 1716.

1716, method 1700 begins to use takes over power-transfer clutch with the higher shelves of joint after measuring in predetermined time after the resignation power-transfer clutch of release command.This is taken over power-transfer clutch and can offer this oil pressure of taking over power-transfer clutch by increase and use.Predetermined time measures and can rule of thumb to determine and be stored in memory device in order to use during upgrading.In one example, taking over power-transfer clutch uses in the possibility of the wearing and tearing that reduce this resignation power-transfer clutch by the outgoing side that accelerates this resignation power-transfer clutch.Application take over power-transfer clutch begin after method 1700 proceed to 1718.

1718, method 1700 is used with the speed of controlling or is begun closed transmission system disconnect-type clutch to reduce input shaft torque and boost engine to the starting velocity of rotation of expectation.Specifically, driving engine is by the input side applied load of closed transmission system disconnect-type clutch to turbine transformer, in order to reduce the speed of face of fluid torque converter.Transmission system disconnect-type clutch applied pressure can regulate to control the transmission of torque of this transmission system disconnect-type clutch both sides.And, whenever can use the transmission system disconnect-type clutch during the inertia phase in gear shift when taking over power-transfer clutch and just be closed.

In one example, this transmission system disconnect-type clutch application rate can be regulated according to face of fluid torque converter speed when using the transmission system disconnect-type clutch.Due to the transmission system disconnect-type clutch from the input side transmitting torque of change-speed box to driving engine, limit according to pump impeller speed to the amount of the torque of driving engine transmission.In another example, transfer function based on the relevant transmission system disconnect-type clutch of the torque to transmitting of the amount of the input torque that offers the transmission system disconnect-type clutch and transmission system disconnect-type clutch applied pressure multiply by the DISG torque, to determine to pass to the amount that driving engine starts the torque of this driving engine.Transmission system disconnect-type clutch application rate can be conditioned, and makes the starting rotational torque of hope offer driving engine via DISG and transmission system disconnect-type clutch.

In another example, transmission system disconnect-type clutch application rate can be controlled according to the speed of DISG and the engine speed accelerated speed of hope.For example, when via the engine acceleration index of DISG speed and hope, transmission system disconnect-type clutch application rate can be from the table index of the output transmission system disconnect-type clutch application rate rule of thumb determined.Method 1700 proceeds to 1720 after beginning transmission system disconnect-type clutch is used.

1720, during the inertia phase that change-speed box upgrades or afterwards, method 1700 is regulated the DISG torques so that the gear-box input torque of hope to be provided via face of fluid torque converter.If engine quality is higher, DISG output can increase and makes gear-box input torque not reduce value more than hope.If engine quality is lower, the DISG torque can reduce the amount that makes gear-box input torque reduce hope.The DISG torque can be regulated by the electric current that increases or reduce the current DISG of imposing on.Method 1700 proceeds to 1722 after regulating the DISG torque.

1722, when method 1700 start the engines when reaching threshold velocity to driving engine feed fuels and spark engine speed.In one example, the starter outside DISG can be engaged in driving engine, when driving engine is activated the torque except the torque that is offered driving engine by the transmission system disconnect-type clutch to be provided, to make the engine starting velocity of rotation that can reach hope.Method 1700 proceeds to and withdraws from after engine starting.

By this way, the transmission output shaft torque can reduce during the inertia phase of gear shift, therefore can reduce drive train torque and disturb.Reduce the input shaft torque by closed transmission system disconnect-type clutch start the engine, therefore the inertia phase in gear shift can reduce the transmission output shaft torque.

With reference now to Figure 18,, Figure 18 illustrates the exemplary sequential according to method start the engine during shifting of transmission of Figure 17.The sequential of Figure 18 can be provided by the system of Fig. 1-3.Dotted line trace and solid-line trace are equal to when the dotted line trace is invisible.

The first figure from the top of Figure 18 represents the graph of relation of input shaft torque and time.Torque at input shaft equals the torque of change-speed box fluid power torque converter turbine.Y-axis represents that input shaft torque and input shaft torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.Solid-line trace 1802 expression is not by closed transmission system disconnect-type clutch start the engine or the input shaft torque that provides the input shaft torque to reduce.Dotted line trace 1804 expression is when arrive input shaft torque when more high-grade by closed this transmission system disconnect-type clutch start the engine and gear shift.

The second figure from the top of Figure 18 represents the graph of relation of transmission output shaft torque and time.Y-axis represents that transmission output shaft torque and transmission output shaft torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.Solid-line trace 1806 expression is not by closed transmission system disconnect-type clutch start the engine or the transmission output shaft torque that provides the input shaft torque to reduce.Dotted line trace 1808 expression is when arrive transmission output shaft torque when more high-grade by closed this transmission system disconnect-type clutch start the engine and gear shift.

The 3rd figure from the top of Figure 18 represents the graph of relation of transmission system disconnect-type clutch state and time.Y-axis represents transmission system disconnect-type clutch state, and wherein near this transmission system disconnect-type clutch of X-axis be open and be closed near the Y-axis top.The amount of the torque of transmitting by the transmission system disconnect-type clutch when the transmission system disconnect-type clutch is closed increases.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 18 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 18 represents the graph of relation of DISG torque and time.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₂₇, not gear shift of change-speed box and engine stop.It is constant that DISG exports torque and input shaft and output torque to transmission system.

In time T ₂₈, drive train torque (not shown) and the car speed (not shown) of the plan of change-speed box response shifting of transmission, hope begin gear shift.Gear shift begins by unclamping the resignation power-transfer clutch.For example, during being raised to third gear from second gear, this second gear power-transfer clutch (resignation power-transfer clutch) unclamps before third gear (taking over power-transfer clutch) is employed.The input shaft torque remains unchanged, although it can increase to keep better the transmission output shaft torque in some instances.The gear-box output torque response is unclamped this resignation power-transfer clutch and is begun to reduce.This transmission system disconnect-type clutch be illustrated be open and engine stop.The DISG torque is illustrated the constant level that is maintained at.

In time T ₂₉, inertia phase is unclamped the resignation power-transfer clutch by response and is used and to take over power-transfer clutch and begin.When take over that power-transfer clutch is employed and when beginning closure this transmission system disconnect-type clutch begin closure.Because some DISG torques are transmitted with rolling motor via this transmission system disconnect-type clutch, the input shaft torque also is illustrated this transmission system disconnect-type clutch closure of response and reduces.Engine speed response drive train torque is applied to driving engine to begin to increase.The DISG torque is illustrated in constant level.

* in time T ₂₉And time T ₃₀Between, the amount that transmission system disconnect-type clutch state is conditioned to control the drive train torque that imposes on driving engine is shown.Transmission system disconnect-type clutch applied pressure can responding engine speed and/or transmission output shaft speed regulate, disturb in order to reduce drive train torque during gear shift and engine starting.Spark and fuel (not shown) also are supplied to this driving engine, make engine speed reach DISG speed.The transmission output shaft torque increases gradually when the transmission system disconnect-type clutch is employed to restart driving engine, as shown in dotted line 1808.If do not use the transmission system disconnect-type clutch during inertia phase, transmission output shaft torque response gear ratio changes and increases.Therefore, use the transmission system disconnect-type clutch during inertia phase and can reduce the drive train torque interference.

In time T ₃₀, finish by the inertia phase that gear-box output torque is converted to the steady state value shifting of transmission when taking over the power-transfer clutch (not shown) and used fully, as shown in the figure.The DISG torque also is illustrated completing of gear shift of response and increases, so vehicle can restart to accelerate.

The drive train torque that can reduce during gear shift by this way, disturbs.And the energy in transmission system can be used for start the engine, so DISG can provide less torque to come start the engine.

The method and system of Fig. 1-3 and Figure 17-18 provides shifting of transmission, comprising: the response change-speed box upgrades and requires driving engine is connected in change-speed box.By this way, can reduce the input shaft torque to control the transmission output shaft torque during gear shift.The method be included in require change-speed box upgrade before driving engine be not attached to change-speed box, change-speed box is in the vehicle of motion and be in D Drive, and vehicle continues mobile and change-speed box upgrades higher shelves.The method comprises that driving engine is connected in change-speed box by the transmission system disconnect-type clutch be arranged on transmission system between this driving engine and turbine transformer in.

In some instances, the method is connected in change-speed box with driving engine during being included in the inertia phase of gear shift.The method is connected in change-speed box with driving engine during being included in gear shift after unclamping of resignation power-transfer clutch begins.The method comprises start this driving engine when engine speed reaches threshold velocity.The method comprises that change-speed box is automatic transmission with hydraulic torque converter, is reduced for the input torque of automatic transmission with hydraulic torque converter during gear shift.

The method and system of Fig. 1-3 and Figure 17-18 provides shifting of transmission, comprise: upgrading by the input shaft response change-speed box that optionally driving engine is connected in change-speed box requires minimizing to the input torque of change-speed box, and this driving engine was not attached to change-speed box before shifting of transmission requires.The method comprises that driving engine is connected in change-speed box by the transmission system disconnect-type clutch.The method comprises that the turbine transformer in transmission system is arranged between driving engine and change-speed box.The method also is included in the torque that increases or reduce transmission system integrated actuating machine/electrical generator during gear shift.The method comprises the torque that increases from transmission system integrated actuating machine/electrical generator, with the pump impeller speed that keeps turbine transformer greater than threshold velocity.The method is included in change-speed box and upgrades and stop engine rotation before requiring.

The method and system of Fig. 1-3 and Figure 17-18 provides a kind of hybrid vehicle system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side and second side of the second side that is connected in this transmission system disconnect-type clutch; Be connected in the change-speed box of this DISG; And controller, this controller comprises executable non-transition instruction, requires and respond this shifting of transmission requirement driving engine is connected in this change-speed box with the beginning shifting of transmission.

In some instances, this hybrid vehicle system also is included in the turbine transformer that is arranged between this change-speed box and DISG in transmission system.This hybrid vehicle system also comprises additional instruction, with start the engine.This hybrid vehicle system also comprises additional instruction, by the transmission system disconnect-type clutch, driving engine is connected in change-speed box.This hybrid vehicle system also comprises additional instruction, and upgrading with the response change-speed box requires to increase the DISG torque.This hybrid vehicle system also comprises additional instruction, and upgrading with the response change-speed box requires to reduce the DISG torque.This hybrid vehicle system also comprises additional instruction, driving engine is accelerated to the starting velocity of rotation of hope.

With reference now to Figure 19,, Figure 19 illustrates for improve the method for vehicle transmission system response when transmission system comprises double mass flywheel.The method of Figure 19 can be stored in the non-transient memory device of the controller 12 shown in Fig. 1-3 as executable instruction.

1902, method 1900 is determined operating mode.Operating mode can include but not limited to drive train torque, DISG torque, transmission system disconnect-type clutch state and the engine speed of engine speed, DMF input and output speed, requirement.Method 1900 proceeds to 1904 after definite operating mode.

1904, method 1900 is determined the upstream of this DMF or speed and/or the position of driving engine one side.In alternative example, can determine the torque on the upstream side of this DMF.This speed and/or position can be determined from position transduser.Torque can be determined by torque sensor.Method 1900 proceeds to 1906 after the speed of the upstream side of DMF and/or position are determined.

1906, method 1900 is determined the downstream of this DMF or speed and/or the position of transmission system disconnect-type clutch one side.Alternately, can determine torque on the downstream of this DMF.Speed and/or position in the downstream of DMF can be determined by position transduser.Torque in the downstream of DMF can be determined by torque sensor.Method 1900 proceeds to 1908 after the speed in the downstream of DMF and/or position are determined.

1908, speed, position or torque differences between the upstream side of method 1900 definite these DMF and the downstream of DMF.In one example, transmission system disconnect-type clutch one side of DMF is speed and/or position one side of the hope of this DMF.The speed of driving engine one side of this DMF and/or position deduct from speed and/or the position of driving engine one side of this DMF, to be provided at DMF speed and/or the positional error of this DMF both sides.Alternately, the torque of driving engine one side of this DMF deducts from the torque of the upstream side of this DMF, so that torque error to be provided.In some instances, the difference of speed/positional between the second side of the first side of this DMF of transmission system run duration and DMF can with when comparing without the position on the second side of the position of torque first side of this DMF when transmit DMF both sides and DMF.

In another example, the Fast Fourier Transform (FFT) that can carry out DMF upstream and downstream speed signal is with amplitude or size and the frequency of any velocity fluctuation on the upstream side of determining this DMF and downstream.Method 1900 proceeds to 1910 after the speed in frequency of the speed course latitude error of DMF both sides and/or DMF upstream and downstream and amplitude are determined.

1910, method 1900 judges on this DMF upstream and downstream side that whether speed and/or positional error or amplitude and frequency are greater than threshold level.If so, method 1900 proceeds to 1912.Otherwise method 1900 proceeds to and withdraws from.

1912, method 1900 judges that the transmission system operating mode is whether in the first human window.For example, whether upstream and downstream DMF speed course latitude error is greater than the first threshold level.In other examples, the torque differences of DMF both sides or alternate position spike error can be to determine the transmission system operating mode whether basis in the first human window.In other example, frequency or Frequency and Amplitude can compare with threshold value.If the transmission system operating mode is in the first human window, method 1900 proceeds to 1914.Otherwise method 1900 proceeds to 1916.

1914, method 1900 is regulated change-speed box fluid power converter clutch (TCC) to weaken speed and/or the torque oscillation on DMF.This TCC can recently regulate by the duty that changes the TCC command signal.In other examples, regulate the frequency of TCC.The dutycycle that reduces the TCC control command to be increasing the slip of this TCC both sides, thereby increases the damping of DMF.But, if when speed/positional TCC slip threshold quantity when poor detected on DMF, can order this TCC to latched position by increasing this TCC duty command.The TCC regulated quantity can be based on the error between the value of hope and actual value.For example, the TCC dutycycle can be regulated according to the difference between upstream and downstream DMF speed.Method 1900 proceeds to and withdraws from after regulating TCC.

1916, method 1900 judges that the transmission system operating mode is whether in the second human window.For example, whether upstream and downstream DMF speed course latitude error is greater than the Second Threshold level.If the transmission system operating mode is in the second human window, method 1900 proceeds to 1918.Otherwise method 1900 proceeds to 1920.

1918, method 1900 is regulated the slip of transmission system disconnect-type clutch to regulate the damping of DMF both sides.In one example, the slippage on increase transmission system disconnect-type clutch is to increase the damping on DMF.But, if when the speed/positional error being detected transmission system disconnect-type clutch slip threshold quantity, this transmission system disconnect-type clutch is fully closed to strengthen this transmission system.This transmission system disconnect-type clutch should be exerted oneself or pressure can be regulated according to the difference between hope and the actual value of the difference between upstream and downstream DMF speed or the variable such as the transmission system Frequency and Amplitude previously discussed.Regulate that the transmission system disconnect-type clutch should exert oneself or pressure afterwards method 1900 proceed to and withdraw from.

1920, method 1900 judges that the transmission system situation is whether in the 3rd human window.For example, whether upstream and downstream DMF speed course latitude error is greater than the 3rd threshold level.If so, method 1900 proceeds to 1922.Otherwise method 1900 proceeds to 1924.

1922, method 1900 is regulated the torque of DISG with speed/positional or the torque differences of compensation DMF both sides.In one example, if the speed on the driving engine of DMF one side greater than the speed on transmission system disconnect-type clutch one side of DMF, the torque of DISG output increases.If the speed on the driving engine of DMF one side is less than the speed on transmission system disconnect-type clutch one side of DMF, the torque from DISG reduces.In one example, DMF speed, position or torque error are imported into outgoing current resistance requirement with in the function or table of regulating the DISG torque.And increase when the DISG torque when negative of the symbol of error.If undesirable frequency and amplitude are determined, the torque that offers DISG can be adjusted to outside the scope of speed signal error towards 180 degree, to weaken undesirable velocity fluctuation.Method 1900 proceeds to and withdraws from after regulating the DISG torque.

1924, if the transmission system disconnect-type clutch not method of closing 1900 increase the application rate of transmission system disconnect-type clutchs.Can closure and applying pressure increase by this transmission system disconnect-type clutch of dutycycle that increases transmission system disconnect-type clutch control signal.Method 1900 proceeds to and withdraws from after transmission system disconnect-type clutch closure.

In other examples, can regulate slip, TCC and the DISG torque of transmission system disconnect-type clutch in the time of with the damping of regulating DMF both sides.By this way, during greater than threshold level, method 1900 can be regulated one or more drg and be weakened or strengthen transmission system with increase when speed/positional, frequency or the torque differences of DMF both sides or error.

Restriction is with reference to Figure 20, and Figure 20 illustrates for compensate the exemplary sequential of the DMF of transmission system according to the method for Figure 19.The sequential of Figure 20 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 20 represents the graph of relation of car speed and time.Y-axis represents that car speed and car speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The second figure from the top of Figure 20 represents that the transmission system disconnect-type clutch should be firmly and the graph of relation of time.Y-axis represents that the transmission system disconnect-type clutch should be exerted oneself and the transmission system disconnect-type clutch should be firmly increases along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd chart DMF speed and the graph of relation of time from the top of Figure 20.Y-axis represents DMF speed, and DMF speed is along the direction increase of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 20 represents that TCC should be firmly and the graph of relation of time.Y-axis represents that TCC should exert oneself and TCC should be firmly increases along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 20 represents the graph of relation of DISG torque and time.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₃₁, car speed raises and the transmission system disconnect-type clutch is used fully, and this should firmly be in the high level expression by the transmission system disconnect-type clutch.DMF speed is also in higher level and should firmly be in as TCC shown in the level of rising, and the TCC power-transfer clutch is closed.The DISG torque also is in this DISG of expression is providing the higher level of torque to vehicle transmission system.

In time T ₃₂, car speed reach zero and the transmission system disconnect-type clutch to open to allow the engine response underneath drive be torque-demand (not shown) and stopping.DMF speed also is reduced to zero when the speed of driving engine is reduced to zero.TCC should exert oneself also to reduce to make turbine transformer both sides appearance, and slip/slippage/(slippage) skids.The DISG torque also reduces, but DISG continues to provide torque so that the oil pressure in can keeping change-speed box to transmission system.In other words, when vehicle and engine stop the DISG torque by the turbine transformer transmission.This DISG torque is rotated transmission oil pump to keep the change-speed box oil pressure.

In time T ₃₃, this DISG torque response is required the torque (not shown) and is increased by the increase of chaufeur request.The DISG torque that the car speed response increases begins to increase and the torque of the requirement that the response of transmission system disconnect-type clutch increases begins closure.DMF speed increases when the transmission system disconnect-type clutch should firmly increase with closed this transmission system disconnect-type clutch.Actual DMF speed starting oscillation, and the error between the transmission system oscillation amplitude of transmission system oscillation amplitude between the DMF speed of the DMF speed of wishing and reality or that wish and reality is increased to the level greater than first threshold.TCC should exert oneself further to reduce DMF vibration and/or speed course latitude error.

In time T ₃₃And time T ₃₄Between, driving engine and DISG provide torque to vehicle transmission system.And the transmission system disconnect-type clutch keeps fully closed and DMF velocity variations when engine speed changes.

In time T ₃₄, car speed reach zero and the transmission system disconnect-type clutch to open to allow the engine response underneath drive be torque-demand (not shown) and stopping.DMF speed also is reduced to zero when the speed of driving engine is reduced to zero.TCC should exert oneself to reduce again to make to occur on turbine transformer sliding.The DISG torque also reduces.

In time T ₃₅, this DISG torque response is increased by the torque (not shown) of the requirement of driver requested increase.The torque that requires that the DISG torque that car speed responds this increase begins to increase and the response of transmission system disconnect-type clutch increases begins closure.DMF speed increases when the transmission system disconnect-type clutch should firmly increase with closed this transmission system disconnect-type clutch.Actual DMF speed is with greater than in time T ₃₃The amplitude starting oscillation, and the error between transmission system oscillation amplitude between the DMF speed of wishing and actual DMF speed or that wish and actual transmission system oscillation amplitude is increased to the level greater than Second Threshold.The transmission system disconnect-type clutch should firmly reduce to reduce DMF vibration and/or speed course latitude error.

In time T ₃₅And time T ₃₆Between, it is torque-demand (not shown) and stopping that the transmission system disconnect-type clutch keeps opening to allow fully the engine response underneath drive.And DMF speed also is reduced to zero when starting machine speed to be reduced to zero.The DISG torque also reduces.

In time T ₃₆, car speed reach zero and the transmission system disconnect-type clutch to open to allow the engine response underneath drive be torque-demand (not shown) and stopping.DMF speed also is reduced to zero when the speed of driving engine is reduced to zero.TCC should exert oneself to reduce again to make to occur on turbine transformer sliding.The DISG torque also reduces.

In time T ₃₇, this DISG torque response is increased by the torque (not shown) of the requirement of driver requested increase.The torque that requires that the DISG torque that car speed responds this increase begins to increase and the response of transmission system disconnect-type clutch increases begins closure.DMF speed increases when the transmission system disconnect-type clutch should firmly increase with closed this transmission system disconnect-type clutch.Actual DMF speed is with greater than in time T ₃₅The amplitude starting oscillation, and the error between transmission system oscillation amplitude between the DMF speed of wishing and actual DMF speed or that wish and actual transmission system oscillation amplitude is increased to the level greater than the 3rd threshold value.Regulate (for example, adjusting) DISG output torque to reduce DMF speed.In addition, the application rate that should exert oneself of the transmission system disconnect-type clutch of increase can increase to strengthen this transmission system.

By this way, can regulate different actuators disturbs to control the drive train torque that may appear at DMF.This different actuator can be regulated according to the interference (for example, speed course latitude error, torque error, vibration) of measuring at DMF.

The method and system of Fig. 1-3 and Figure 19-20 provides hybrid vehicle powertrain systems, comprise: speed or the torque differences control actuator of double mass flywheel (DMF) both sides of response be arranged on this hybrid vehicle powertrain systems between driving engine and transmission system disconnect-type clutch in, wherein DMF is arranged on the power train part between driving engine and transmission system disconnect-type clutch.By this way, can reduce NVH.

In one example, the method comprises that actuator is TCC.The method comprises that actuator is transmission system integrated actuating machine/electrical generator.The method comprises that actuator is the transmission system disconnect-type clutch.The method comprises that the position transduser of the velocity contrast of DMF both sides being arranged on this hybrid vehicle powertrain systems from engine position sensor with between this DMF and transmission system disconnect-type clutch determine.During the method comprises that the transmission system disconnect-type clutch is arranged on this hybrid vehicle powertrain systems between this DMF and transmission system integrated actuating machine/electrical generator.The method comprises that this transmission system disconnect-type clutch makes driving engine optionally disconnect from transmission system integrated actuating machine/electrical generator.

The method and system of Fig. 1-3 and Figure 19-20 is used for regulating the operation of hybrid vehicle powertrain systems, comprising: engage the transmission system disconnect-type clutch to pass through the electrical motor rolling motor; And the double mass flywheel of response be arranged on this hybrid vehicle powertrain systems between driving engine and transmission system disconnect-type clutch in (speed or the torque differences control actuator of DMF both sides, wherein DMF is arranged on the power train part between driving engine and transmission system disconnect-type clutch.The method comprises that this electrical motor is that position between transmission system disconnect-type clutch and change-speed box is arranged on the transmission system integrated actuating machine/electrical generator (DISG) in this hybrid vehicle powertrain systems.The method comprises that actuator is DISG.The method comprises that DMF passes to automatic transmission with hydraulic torque converter or two tween drive shaft-dual-clutch transmission with motor torque.The method comprises that actuator is the different actuators for different situations.The method comprises that the frequency component of engine speed signal is the basis for control actuator.The method comprises that this frequency component is definite via Fast Fourier Transform (FFT) (FFT).

The method and system of Fig. 1-3 and Figure 19-20 provides the adjusting motor vehicle driven by mixed power to pass system, comprising: driving engine; The double mass flywheel (DMF) that mechanically comprises the first side that is connected in this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; And the controller that comprises executable non-transition instruction, to respond the poor control actuator of this DMF both sides.

In one example, this hybrid vehicle system also comprises the change-speed box of the second side that is connected in this DMF.This hybrid vehicle system comprises that this difference is compare with the position between the second side of the first side of the position of the second side of the position that there is no torque first side of this DMF when transmit this DMF both sides and this DMF and this DMF and this DMF poor.This hybrid vehicle system comprises that this actuator is DISG.This hybrid vehicle system also comprises additional executable instruction, increases the slip of this transmission system disconnect-type clutch both sides when surpassing threshold velocity with the difference when the first side of this DMF and the speed between the second side.This hybrid vehicle system also comprises additional executable instruction, when the difference of the first side of this DMF and the speed between the second side surpasses threshold velocity to increase the slip of TCC both sides.

The method and system of Fig. 1-3 and Figure 19-20 provides the operation of regulating hybrid vehicle powertrain systems, comprise: the joint control actuator of response transmission system disconnect-type clutch is arranged on the vibration of the double mass flywheel (DMF) between driving engine and transmission system disconnect-type clutch with minimizing, wherein this DMF is between this driving engine and this transmission system disconnect-type clutch.

With reference now to Figure 21,, Figure 21 illustrates the method for disturbing be used to removing the drive train torque relevant with its transfer function with the application of transmission system disconnect-type clutch.The method of Figure 21 can be stored in the non-transient memory device of the controller 12 shown in Fig. 1-3 as executable instruction.

2102, method 2100 is determined operating mode.This operating mode includes but not limited to drive train torque, DISG torque, DISG speed, transmission system disconnect-type clutch state, engine speed, face of fluid torque converter speed, transformer turbine speed and the motor torque of engine speed, DMF input and output speed, requirement.Method 2100 proceeds to 2104. after definite operating mode

2104, method 2100 judges whether the transmission system disconnect-type clutch is opened.According to being stored in the variable in memory device or can determining that according to the difference between engine speed and DISG speed this transmission system disconnect-type clutch opens.If these transmission system disconnect-type clutchs of method 2100 judgement are not opened, answering is that "No" and method 2100 proceed to and withdraw from.If method 2100 these transmission system disconnect-type clutchs of judgement are opened, answer is "yes" and method 2100 proceeds to 2106.

2106, method 2100 judges whether to require engine starting or motor torque whether to impose on transmission system by DISG.Can require engine starting when the drive train torque that requires during greater than the threshold value torque.Equally, can propose to provide to transmission system the requirement of motor torque during greater than the threshold value torque when the drive train torque that requires.If method 2100 judgement requires engine starting via DISG, if or driving engine torque is imposed on transmission system, answer is "yes" and method 2100 proceeds to 2108.Otherwise answer is that "No" and method 2100 proceed to and withdraw from.

2108, whether method 2100 judgements exist torque sensor in the position shown in Fig. 1-3 in transmission system.If there is torque sensor in judgement, answer is "yes" and method 2100 proceeds to 2110.Otherwise answer is that "No" and method 2100 proceed to 2130.

2110, method 2100 is determined poor between the transmission system output torque of wishing along the selected position of this transmission system and actual transmission system output torque.In some instances, be used for transmission system output torque selection the position can face of fluid torque converter, between transmission system disconnect-type clutch and DISG the position, at transmission output shaft, at transformer turbine, starting power-transfer clutch input or other transmission system position.Should be reality in the transmission system position of selecting or transmission system input torque that measure determine from torque sensor.The transmission system input torque of wishing can be determined from accelerator pedal position or other sources.The difference of torque is that the transmission system input torque of wishing subtracts actual transmission system input torque.

Alternately, if this torque sensor is arranged on transmission system between DISG and transmission system disconnect-type clutch in, the torque of being measured by torque clutch can be added to the DISG torque command, make the additional torque of DISG output come start the engine, so change-speed box is provided the gear-box input torque of hope.Method 2100 proceeds to 2112.

2112, method 2100 is regulated the electric current that offers DISG, so that the transmission system input torque of wishing offers transmission system in concrete position, even this transmission system disconnect-type clutch transfer function variation.If the turbine transformer sensor is used for feeding back the transmission system input torque, increase this DISG torque during less than the transmission system input torque of hope when the transmission system input torque of reality.Reduce this DISG torque during greater than the transmission system input torque of hope when the transmission system input torque of reality.By this way, the transmission system input torque of response hope and difference actual or that measure between the transmission system input torque are regulated this DISG torque.

If provide the drive train torque sensor as the feedforward sensor, torque sensor output is combined to input at change-speed box or the transmission system position of miscellaneous stipulations provides the DISG torque of hope with the DISG torque of wishing.By this way, torque sensor can be arranged as feedback or feedforward means.Method 2100 proceeds to 2114 after the DISG torque is conditioned.

2114, method 2100 increases transmission system disconnect-type clutch pressure with closed this transmission system disconnect-type clutch, so driving engine can rotate by DISG or transmission system starting.Pass through the function that the torque index output transmission system separation order of the hope of this transmission system disconnect-type clutch maybe should exert oneself by basis and regulate transmission system disconnect-type clutch pressure.When driving engine also can provide spark and fuel 2114 after predetermined speed or position.Method 2100 proceeds to 2118 after increasing transmission system disconnect-type clutch pressure.

2116, method 2100 judges whether driving engine starts.In one example, when surpassing threshold velocity, engine speed can judge that driving engine starts.If method 2100 judgement driving engines start, answer is "yes" and method 2100 proceeds to 2118.Otherwise answer is that "No" and method 2100 proceed to 2110.

2118, method 2100 judges whether engine speed has accelerated to and equaled DISG speed.Read when engine speed sensor and DISG speed sensor and substantially (can judge that engine speed equals DISG speed for example, ± 20RPM) time for identical speed.If method 2100 judgement engine speeds equal DISG speed, answer is "yes" and method 2100 proceeds to 2122.Otherwise answer is that "No" and method 2100 proceed to 2120.

2120, method 2100 arrives DISG speed with engine speed modulation.Can be with engine speed modulation to DISG speed by spray the adjusting motor torque with throttle gate and fuel.And, can regulate engine speed by complete closed transmission system disconnect-type clutch and reach DISG speed.But complete closed transmission system disconnect-type clutch can increase the drive train torque interference before engine speed coupling DISG speed.After engine speed modulation was arrived DISG speed, method 2100 proceeded to 2118.

2122, method 2100 these transmission system disconnect-type clutchs of locking.Can lock this transmission system disconnect-type clutch by the pressure that this transmission system disconnect-type clutch is used more than threshold quantity.Method 2100 proceeds to and withdraws from after this transmission system disconnect-type clutch of locking.

2130, method 2100 is opened TCC (TCC).Open this TCC so that can be according to the torque of turbine transformer operating mode estimation at face of fluid torque converter.Alternately, if wish, can estimate the transformer turbine torque.Method 2100 proceeds to 2132 after TCC opens.

2132, method 2100 is converted to speed control mode with DISG from the torque master mode, makes DISG follow the speed of hope.By according to the difference between the DISG speed of hope and actual DISG speed, DISG being carried out torque adjustment, DISG follows the speed of hope.Therefore DISG speed can be controlled by the DISG speed adjusting DISG torque that responds actual measurement.In addition, method 2100 estimates that the transmission system disconnect-type clutch provides the amount with the torque of start the engine.The amount of torque of the hope of start the engine can rule of thumb be determined and be stored in memory device as transfer function.Describe the function of transmission system disconnect-type clutch transfer function by index, the amount of torque of the hope of start the engine can pass to driving engine by the transmission system disconnect-type clutch.This function output provides the transmission system disconnect-type clutch actuation commands of the transmission system disconnect-type clutch torque of hope.The transmission system disconnect-type clutch torque index of this function by wishing.At DISG from torque master mode admission velocity master mode and determine to offer by this transmission system disconnect-type clutch driving engine amount of torque in case driving engine can start rotate after method 2100 proceed to 2134.

2134, method 2100 order DISG are to the face of fluid torque converter torque of the speed (this speed is the function of the face of fluid torque converter torque of transformer turbine speed and hope) of wishing to realize wishing.The face of fluid torque converter torque of wishing can be determined from accelerator input or controller (for example, the drive train torque of hope).The DISG speed of wishing can be determined (seeing Figure 45-47) by one or more function of describing the operation of turbine transformer by index.Specifically, transformer turbine speed is taken advantage of by turbine transformer capacity factor (for example turbine transformer transfer function) with the ratio of face of fluid torque converter speed.Then this result is taken advantage of by the face of fluid torque converter velocity squared, so that the face of fluid torque converter torque to be provided.

Therefore, when turbine transformer capacity factor, face of fluid torque converter torque and transformer turbine speed are known, can determine to provide the face of fluid torque converter speed of face of fluid torque converter torque.By this way, the turbine transformer transfer function is basis be used to the face of fluid torque converter torque that hope is provided when the transmission system sensor is not provided.Even if it should be firmly off-square that the transmission system disconnect-type clutch of the engine starting rotational torque of hope is provided, also order DISG to the face of fluid torque converter speed of the face of fluid torque converter torque that hope can be provided.In addition, 2132, the amount of torque that is applied by the transmission system disconnect-type clutch of determining can be added to the DISG torque command that the DISG of hope speed is provided in speed control mode.By this way, can be added to the DISG torque command by this transmission system disconnect-type clutch from the torque that DISG passes to driving engine, even so that DISG also reaches face of fluid torque converter speed and the torque of hope when the transmission system disconnect-type clutch is employed.Method 2100 proceeds to 2136 after regulating DISG speed.

2136, method 2100 increases transmission system disconnect-type clutch pressure with closed this transmission system disconnect-type clutch, so driving engine can rotate by DISG or transmission system starting.The amount of torque that this transmission system disconnect-type clutch pressure is closed to be provided at 2132 hope of determining starts rolling motor.When driving engine also can provide transmission system spark and fuel 2136 after predetermined speed or position.Method 2100 proceeds to 2138 after transmission system disconnect-type clutch pressure begins to increase.

2138, method 2100 judges whether driving engine starts.In one example, when surpassing threshold velocity, engine speed can judge that driving engine starts.If method 2100 judgement driving engines start, answer is "yes" and method 2100 proceeds to 2140.Otherwise answer is that "No" and method 2100 turn back to 2132.

2140, method 2100 judges whether engine speed has accelerated to and equaled DISG speed.When reading as essentially identical speed, engine speed sensor and DISG speed sensor (can judge that engine speed equals DISG speed for example, ± 20RPM) time.If method 2100 judgement engine speeds equal DISG speed, answer is "yes" and method 2100 proceeds to 2144.Otherwise answer is that "No" and method 2100 proceed to 2142.

2142, method 2100 arrives DISG speed with engine speed modulation.Can be with engine speed modulation to DISG speed by spray the adjusting motor torque with throttle gate and fuel.And, can regulate engine speed by complete closed transmission system disconnect-type clutch and reach DISG speed.But complete closed transmission system disconnect-type clutch can increase the drive train torque interference before engine speed coupling DISG speed.After engine speed modulation was arrived DISG speed, method 2100 turned back to 2140.

2144, method 2100 these transmission system disconnect-type clutchs of locking.Can lock this transmission system disconnect-type clutch by the pressure that this transmission system disconnect-type clutch is used greater than threshold quantity.Method 2100 proceeds to and withdraws from after this transmission system disconnect-type clutch of locking.

By this way, and if this turbine transformer transfer function can be for the basis of estimating and provide the face of fluid torque converter torque of hope when not having this transmission system disconnect-type clutch transmission of torque function variation of drive train torque sensor.On the other hand, if can obtain the turbine transformer sensor, even this turbine transformer sensor output can be for regulating the DISG torque so that transmission system disconnect-type clutch transfer function variation also can provide the basis of the face of fluid torque converter torque of hope.

Restriction is with reference to Figure 22, and Figure 22 illustrates for compensate the exemplary sequential of transmission system disconnect-type clutch transfer function according to the method for Figure 21.The sequential of Figure 22 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 22 represents basic DISG torque-demand and the graph of relation of time.In one example, basic DISG torque-demand is to provide to this transmission system and not from the DISG torque of the feedback of the feedback of drive train torque sensor or turbine transformer operating mode.Y-axis represents that basic DISG torque and basic DISG torque are asked along the direction of Y-axis arrow to be increased.X-axis represents that time and time increase to the right from the left side of figure.

The second figure from the top of Figure 20 represents the graph of relation of face of fluid torque converter torque and time.Y-axis represents that face of fluid torque converter torque and face of fluid torque converter torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.The face of fluid torque converter torque that solid-line trace 2201 expressions are wished.The 2204 actual face of fluid torque converter torques of expression of dotted line trace.When the face of fluid torque converter torque that the face of fluid torque converter torque of reality equals to wish when seeing the face of fluid torque converter torque of hope only.

The 3rd chart transmission system disconnect-type clutch power and the graph of relation of time from the top of Figure 20.Y-axis represents that transmission system disconnect-type clutch power and transmission system disconnect-type clutch power increase along the direction of Y-axis arrow.The transmission system disconnect-type clutch is closed under higher power and open under lower power.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 20 represents the graph of relation of DISG torque adjustment and time.Y-axis represents that DISG regulates torque and DISG regulates torque along the direction increase of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 20 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₃₈, the DISG torque is in higher level, and the face of fluid torque converter torque is equally also.Therefore the face of fluid torque converter torque closed and that wish due to the face of fluid torque converter torque coupling of reality of transmission system disconnect-type clutch does not have the DISG torque adjustment.Engine acceleration also is in the level of rising, and the expression driving engine is in operation.

In time T ₃₉, basic DISG torque is reduced to zero; But this basic DISG torque can be greater than zero to provide the change-speed box oil pressure in some instances.Engine stop and face of fluid torque converter speed also are reduced to zero.The transmission system disconnect-type clutch is opened so driving engine and DISG disengaging.In time T ₃₉And time T ₄₀Between, driving engine and DISG keep shutting down.

In time T ₄₀The torque (not shown) that basic DISG torque response is driver requested and response transmission system disconnect-type clutch power and increasing, this transmission system disconnect-type clutch power can be transformed into the amount that passes to the torque of driving engine by this transmission system disconnect-type clutch.The driver requested torque of engine response is rotated and will be activated.The driver requested torque of engine response should exert oneself to rotate by increasing the transmission system disconnect-type clutch, therefore can transmit with rolling motor from the torque of DISG.The DISG torque that passes to driving engine is estimated according to this transmission system disconnect-type clutch power.Particularly, being transmitted is the transfer function of rule of thumb the determining output transmission system disconnect-type clutch torque of disconnect-type clutch power index.The DISG torque of order is the torque of transmission system disconnect-type clutch and driver requested torque sum.In one example, driver requested torque is the face of fluid torque converter torque of wishing.If the torque of transmission system disconnect-type clutch is by too high estimation or underestimation, actual face of fluid torque converter torque will change from the face of fluid torque converter torque of hope.

By this way, when transmission system disconnect-type clutch power increased, actual face of fluid torque converter torque was less than the face of fluid torque converter torque of hope.Therefore, the torque of transmission system disconnect-type clutch is passed to face of fluid torque converter by underestimation and torque seldom from DISG.As a result, the DISG torque increases to revise poor between the face of fluid torque converter torque of this hope and actual face of fluid torque converter torque.Increase in DISG torque shown in DISG torque adjustment diagram of curves, the torque of this increase is added in the basic DISG torque-demand shown in the first figure and is exported to DISG.And, in some instances, respond the transmission system disconnect-type clutch transfer function that this DISG torque adjustment is regulated estimation.For example, if the DISG torque increases 2N-m, this transmission system disconnect-type clutch transfer function is conditioned, and should firmly transmit additional 2N-m to reflect this transmission system disconnect-type clutch with current transmission system disconnect-type clutch.

Actual face of fluid torque converter torque can by torque sensor determine or the turbine transformer capacity factor alternately described from face of fluid torque converter speed, transformer turbine speed with about Figure 21 and Figure 45-47 definite.The face of fluid torque converter torque of wishing can require to determine from accelerator pedal position or controller.

In time T ₄₁, driving engine is activated and driving engine has accelerated to the speed same with DISG.And, this DISG speed of transmission system disconnect-type clutch responding engine speeds match and closure.The face of fluid torque converter torque actual in transmission system disconnect-type clutch response equals the (± face of fluid torque converter torque 10N-m) wished and DISG torque adjustment minimizing after closed substantially.

Therefore, provide the method and system of Fig. 1-3 and Figure 21-22 to be used for the operating hybrid vehicle transmission system, comprising: responding engine starts requirement and opens TCC; Regulate transmission system integrated actuating machine/electrical generator (DISG) speed with the face of fluid torque converter speed that response is wished.The compensation of transmission system disconnect-type clutch can be provided by this way.The method comprises, regulates DISG speed and comprises as the function of the face of fluid torque converter speed of transformer turbine speed and hope and regulate DISG speed.The method comprises that the face of fluid torque converter torque of hope is based on driver requested torque.The method comprises that DISG speed regulates by regulating the DISG torque.

In some instances, the method also comprises the transmission system disconnect-type clutch torque adjustment DISG torque that response is estimated.The method comprises that also the transmission system disconnect-type clutch torque of this estimation should exert oneself based on this transmission system disconnect-type clutch.The method also comprises when regulating DISG speed moves DISG with speed control mode.

Provide the method and system of Fig. 1-3 and Figure 21-22 to be used for the operating hybrid vehicle transmission system, comprising: responding engine starts requirement and opens TCC; With speed control mode operating transmission system integrated actuating machine/electrical generator (DISG); The face of fluid torque converter speed that response is wished is regulated DISG speed; By closed transmission system disconnect-type clutch start the engine.It is partly closed that the method comprises that response transmission system disconnect-type clutch is used the power train disconnect-type clutch, and the torque of transmission system disconnect-type clutch should firmly be estimated according to the transmission system disconnect-type clutch.

In some instances, the method comprises the transmission system disconnect-type clutch adjusting DISG torque that responds this estimation.The method also comprises the face of fluid torque converter torque adjustment DISG speed that response is wished.The method comprises that DISG speed and closed this transmission system disconnect-type clutch regulate simultaneously.During the method also is included in closed this transmission system disconnect-type clutch, response DISG regulates torque output adjusting transmission system disconnect-type clutch transfer function.The method comprises, comprise partly closed this transmission system disconnect-type clutch and then fully closed this transmission system disconnect-type clutch by closed this transmission system disconnect-type clutch start the engine, make this transmission system disconnect-type clutch input speed coupling transmission system velocity of separation when engine speed equals DISG speed substantially.

The method and system of Fig. 1-3 and Figure 21-22 provides a kind of motor vehicle driven by mixed power to pass system, comprising: turbine transformer; Transmission system integrated actuating machine/electrical generator (DISG); Driving engine; Be arranged on the transmission system disconnect-type clutch between this driving engine and DISG; And the controller that comprises executable non-transition instruction, be used for moving this DISG and the face of fluid torque converter torque of hope being provided by the face of fluid torque converter torque adjustment DISG speed of response transformer turbine speed and hope with speed control mode.

In some instances, this hybrid vehicle powertrain systems system comprises the instruction of additional executable non-transition, is used in the situation that substantially equal closed this transmission system disconnect-type clutch of DISG speed at the first engine speed after engine stop.This motor vehicle driven by mixed power passes the instruction that system also comprises additional executable non-transition, is used for closed this transmission system disconnect-type clutch of requirement of response start the engine.This motor vehicle driven by mixed power passes the instruction that system also comprises additional executable non-transition, is used for should firmly estimating this transmission system disconnect-type clutch torque according to the transmission system disconnect-type clutch.This motor vehicle driven by mixed power passes the transformer turbine speed sensor that system also comprises the DISG speed sensor and is used for estimating transformer turbine speed.This motor vehicle driven by mixed power biography system comprises, this speed control mode comprises regulates the DISG torque to regulate DISG speed.

Provide the method and system of Fig. 1-3 and Figure 21-22 to be used for the operating hybrid vehicle transmission system, comprising: the poor torque output of regulating transmission system integrated actuating machine/electrical generator (DISG) between the drive train torque that response is wished during closed this transmission system disconnect-type clutch at least in part and actual drive train torque.By this way, comprise error even if transmission system separates the estimation of torque, the torque of hope also can be provided.The method comprises that the drive train torque of this hope is that the face of fluid torque converter torque wished and drive train torque that should reality are actual face of fluid torque converter torques.

In some instances, the method comprises that the drive train torque of this hope is based on driver requested torque.The method comprises that also the torque output of regulating DISG estimates based on the open loop of transmission system disconnect-type clutch torque.The method comprises that also the open loop estimation of transmission system disconnect-type clutch torque is based on transmission system disconnect-type clutch utility command.The method also comprises by closed this transmission system disconnect-type clutch starting rolling motor.The method also comprise by before the complete closure of this transmission system disconnect-type clutch to driving engine feed fuels and spark start the engine.

Provide the method and system of Fig. 1-3 and Figure 21-22 to be used for the operating hybrid vehicle transmission system, comprising: the poor torque output of regulating transmission system integrated actuating machine/electrical generator (DISG) between the drive train torque that response is wished during closed this transmission system disconnect-type clutch at least in part and actual drive train torque; With according to the poor transmission system disconnect-type clutch transfer function of regulating between the drive train torque of this hope and actual drive train torque.The method comprises that this transfer function is described as with the torque of transmission system disconnect-type clutch the function that the transmission system disconnect-type clutch should be exerted oneself.

In some instances, the method also comprises by closed transmission system disconnect-type clutch starting rolling motor at least in part.The method also is included in the complete closed transmission system disconnect-type clutch start the engine by supplying spark and fuel to driving engine before.The method comprises that also response equals fully closed this transmission system disconnect-type clutch of DISG speed for the first time substantially from the later engine speed of engine stop.The drive train torque of this hope is inputted based on accelerator pedal.The method comprises that also this actual drive train torque is based on the output of torque sensor.

The method and system of Fig. 1-3 and Figure 21-22 provides a kind of hybrid vehicle system, comprising: the drive train torque sensor; Transmission system integrated actuating machine/electrical generator (DISG); Driving engine; Be arranged on the transmission system disconnect-type clutch between this driving engine and DISG; And the controller that comprises executable non-transition instruction, the poor DISG of the adjusting torque that is used between the output of the drive train torque that responds hope during this transmission system disconnect-type clutch of application and this drive train torque sensor is exported.This hybrid vehicle system also comprises additional executable non-transition instruction, is used for engine starting after this transmission system disconnect-type clutch of closure when engine speed equals DIS speed for the first time substantially.

In some instances, this hybrid vehicle system also comprises the instruction of additional executable non-transition, is used for closed this transmission system disconnect-type clutch of requirement of response start the engine.This hybrid vehicle system also comprises the instruction of additional executable non-transition, for the poor transmission system disconnect-type clutch transfer function of regulating between the output of the drive train torque that responds this hope and this drive train torque sensor.This hybrid vehicle system comprises that also this drive train torque sensor setting is between face of fluid torque converter and DISG.This hybrid vehicle system comprises that also this drive train torque sensor setting is between transformer turbine and transmission gear group.

With reference now to Figure 23,, Figure 23 illustrates for improvement of the diagram of circuit that restarts the method for driving engine after the burning in stopping driving engine.The method of Figure 23 can be stored in the non-transient memory device of the controller 12 in Fig. 1-3 as executable instruction.

2302, method 2300 is determined operating mode.Operating mode can include but not limited to engine speed, engine location, transmission system disconnect-type clutch state, DISG speed and ambient temperature.Torque-demand can be inferred from accelerator pedal 130 and the controller 12 of Fig. 1.Method 2300 proceeds to 2304 after operating mode is determined.

2304, method 2300 judges whether to exist the situation that stops driving engine from rotational automatic.In one example, can stop engine rotation when the drive train torque of hope during less than threshold value.In another example, when car speed can stop engine rotation less than threshold velocity and when motor torque during less than the threshold value torque.Exist if method 2300 judgements stop the situation of engine rotation automatically, method 2300 proceeds to 2306.Otherwise method 2300 proceeds to and withdraws from.

2306, method 2300 sequentially stops to the engine cylinder burner oil, makes during fuel sprays not Halfway Stopping of the burning of fuel in engine cylinder to specific cylinder.Method 2300 proceeds to 2308 after stopping the fuel injection.

2308, method 2300 judges that whether engine speed is lower than upper noise, vibration and uncomfortable property (NVH) threshold velocity and on lower NVH threshold velocity.If so, answer is "yes" and method 2300 proceeds to 2310.Otherwise answer is that "No" and method 2300 turn back to 2330.

2310, method 2300 judges that whether engine crank angle is at preposition when engine rotation.In one example, this preposition is by the crankshaft angles in the predetermined crank angle number after the top dead point compression stroke (for example, four-banger cylinder top dead point compression stroke is afterwards in 90 crank angle degrees) in specific cylinder rotation.If method 2300 judgement engine crank angle are not at preposition, answering is that "No" and method 2300 proceed to 2308.Otherwise answer is "yes" and method 2300 proceeds to 2312.

2312, method 2300 order starters engage the starter pinion axle and miniature gears engages the flywheel Ring gear.The starter pinion axle can move by magnet coil, and starter pinion can begin rotation when pinion shaft fully stretches out.In another example, starter pinion axle and miniature gears Ring gear can be controlled separately, driving separately.Method 2300 proceeds to 2314 after starter pinion axle and miniature gears are ordered engage engine.

2314, whether fully method 2300 judges pinion shaft and miniature gears engage engine flywheel.In one example, can determine engage engine of pinion shaft and miniature gears via sensor output (for example, limit switch) or starter electric current.If method 2300 judgement pinion shafts and miniature gears be engage engine, answer is "yes" and method 2300 proceeds to 2316.Otherwise answer is that "No" and method 2300 proceed to 2322.

2316, method 2300 is adjusted to the second place according to pinion shaft and miniature gears engage engine flywheel with engine air throttle, thinks that chaufeur may change mind to stop driving engine ready.In one example, the second section valve arrangement is than opening more in 2322 primary importance.If the operator changes mind after starter engages, engine air throttle is adjusted to the position of opening more.Motor torque may be influenced when miniature gears engages flywheel.Regulate engine air tolerance and can compensate this impact, the miniature gears of joint can make engine restart and engine retard.Method 2300 proceeds to 2318 after regulating engine air throttle.

2318, whether method 2300 judgement has been changed mind by operator after order and has been occured from engaging starter pinion axle and starter pinion.Operator's expression chaufeur of changing mind wishes to apply to the wheel application torque to keep or to increase the speed of a motor vehicle.In one example, the operator changes mind and can represent by loosen the brake or via the order of accelerator pedal increase motor torque.If method 2300 judgement operators before engine rotation stops change mind be required, answer is "yes" and method 2300 proceeds to 2320.Otherwise answer is that "No" and method 2300 proceed to 2308.

2320, due to pinion shaft and miniature gears engage engine flywheel, method 2300 is started rolling motor and is restarted driving engine by starter.Fuel and spark also offer engine cylinder again so that the burning in engine cylinder.Method 2300 proceeds to and withdraws from after engine starting rotates and restarts.

2322, method 2300 according to pinion shaft and miniature gears not the engage engine flywheel engine air throttle is adjusted to primary importance.In one example, this first segment valve arrangement is more closed more than the second section valve arrangement 2316.Regulate engine throttle position to closed more position so that the oxidizing action in minimizing engine airflow and the agent of minimizing catalysis of exhaust gas systems.Method 2300 turns back to 2308 after engine air throttle is adjusted to primary importance.

2330, method 2300 judge engine speed whether lower than lower NVH threshold speed and engine speed whether higher than the engaging speed threshold value.This engaging speed is the engine speed that may rotate in the opposite direction lower than its driving engine when driving engine is stopped.If engine speed is higher than engaging speed and lower than lower NVH threshold speed, answer is "yes" and method 2300 proceeds to 2332.Otherwise answer is that "No" and method 2300 proceed to 2350.Method 2300 also stops engaging the trial of starter during lower than engaging speed and higher than zero engine speed at engine speed.

2332, method 2300 order starter pinion axle and miniature gears engage engine flywheel Ring gears.As describing 2312, can order this pinion shaft and miniature gears engage engine flywheel Ring gear.Method 2300 proceeds to 2334 after order starter pinion axle and miniature gears engage engine flywheel.

2334, method 2300 judges whether engage engine flywheel Ring gear of pinion shaft and miniature gears.As describing 2312, described method 2300 judges whether engage engine flywheel Ring gear of pinion shaft and miniature gears.If method 2300 judgement flywheels are engaged by pinion shaft and miniature gears, answer is "yes" and method 2300 proceeds to 2336.Otherwise answer is that "No" and method 1523 proceed to 2342.

2336, method 2300 is adjusted to the 4th position with Throttle Position.Due to being engaged in engine flywheel, pinion shaft and miniature gears occur in lower engine speed, so what may meet expectation is to regulate in the following manner Jake brake, namely via throttle gate, engine air tolerance is controlled to the amount that is different from when attempting under higher engine speed joining starter pinion axle and miniature gears to the engine flywheel Ring gear.And, regulate engine air tolerance and can compensate the joint miniature gears.In one example, the 4th position is throttle gate than in 2322 primary importance with in 2316 the second place closed position more.And the 4th Throttle Position is opened more than in 2342 the 3rd position, for the operator change note ready.In the time of can also being provided at engine stop according to the engine speed modulation throttle gate, engine location is controlled more accurately.Method 2300 proceeds to 2338 after throttle gate is adjusted to the 4th position.

2338, method 2300 judges whether to exist the operator to change mind.Can change mind as definite operator as described in 2318.If method 2300 judgements exist the operator to change mind, answer is "yes" and method 2300 proceeds to 2340.Otherwise answer is that "No" and method 2300 turn back to 2310.

2340, in order to start, method 2300 is started rolling motors and provides spark and fuel to driving engine.Can be via starter or DISG starting rolling motor as method 2300 as described in 2340.The operation response person change mind engine starting rotate and restart after method 2300 proceed to and withdraw from.

2342, method 2300 is with throttle adjustment to the three positions.The 3rd position can be than the closed position more in 2336 described the 4th positions.The 3rd position can be also than 2322 described first with in the 2316 described second places closed position more.Method 2300 turns back to 2310 after regulating engine throttle position.

2350, if starter pinion axle and miniature gears be not at engagement state after driving engine stops, method 2300 order starter pinion axle and miniature gears engage engine flywheel Ring gears.Engage starter pinion axle and miniature gears and can reduce starter and/or Ring gear wearing and tearing after engine stop.Method 2300 proceeds to 2352 after starter pinion axle and miniature gears are by order engage engine flywheel Ring gear.

2352, after the engine stop rotation, the engine response operating mode resets automatically.Driving engine can the responding engine torque-demand be restarted by the operator or operation response person release actuator restarts.When not having the operator to activate or moving when restarting driving engine in the situation of device (for example, the initiation key switch) of the unique function with start the engine, automatic engine occurs start.Automatic engine starts to start or move the device that has more than a function (for example can apply car brakeing when maybe can also be used as the brake pedal of the indication of start the engine) by the operator and begins.Method 2300 restarts driving engine and proceeds to by starter motor or via DISG and withdraws from.

By this way, thus the method for Figure 23 can respond position that starter engages the adjusting joint valve to be restarted and prevents that the operator from changing mind to improve motivation.And the method for Figure 23 is carried out stopping period according to the engine speed modulation Throttle Position at driving engine, so that by limiting engine opposite spin improvement engine stop position.

With reference now to Figure 24,, Figure 24 illustrates the exemplary sequential of improving engine restart and the burning after engine stop according to the method for Figure 23.The sequential of Figure 24 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 24 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The horizon 2402 upper NVH engine speed threshold values of expression.The lower NVH engine speed threshold value of horizon 2404 expressions.Horizon 2406 expression miniature gears engaging speed threshold values, if wherein engine speed is lower than horizon 2406, unless driving engine stops the rotation, otherwise miniature gears is not engaged.

The second figure from the top of Figure 24 represents the graph of relation of fuel-injection condition and time.Y-axis represents fuel-injection condition.When trace during in higher level fuel spray and move.When trace during in lower level fuel spray and stop.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd figure from the top of Figure 24 represents the graph of relation of engine throttle position and time.Y-axis represents that engine throttle position and engine throttle position increase along the direction of arrow of Y-axis.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 24 represents the graph of relation of starter pinion state and time.Y-axis represents that starter pinion state and degree of engagement are described near Y-axis.Miniature gears returns when trace is in the RET level.But when trace during at horizontal ADV miniature gears advance and do not engage.When trace during at horizontal ENG miniature gears engage with engine flywheel.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 24 represents the graph of relation of car brakeing state and time.Y-axis represents the car brakeing state and brake application when trace is in higher level.Brake when trace is in lower level and be released.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₄₂, engine speed raises, and fuel sprays operation, and throttle gate is partly opened, and starter does not engage, and braking is not used.These situations represent that vehicle (for example, 40MPH) is cruising with moderate velocity.In time T ₄₂And time T ₄₃Between, use car brakeing so that vehicle slows.Shown in situation under, in time T ₄₂And time T ₄₃Between vehicle may be mobile or may stop.

In time T ₄₃, response application car brakeing and reduce engine combustion based on the Throttle Position of driver requested torque and stop.As a result, engine speed is reduced to or less than upper NVH engine speed threshold value 2402.Starter pinion is ordered the engage engine flywheel, but miniature gears only advances and incomplete engage engine flywheel.Throttle Position responding engine speed reduces less than upper NVH engine speed threshold value and greater than lower NVH threshold value.And, respond starter pinion forward but do not engage the adjusting joint valve arrangement.Throttle gate is opened to primary importance 2410.Engine speed continues to reduce and tightly in time T ₄₃Miniature gears engages flywheel before.The response miniature gears engages flywheel Throttle Position is adjusted to the second place 2412.This second section valve arrangement is opened more than primary importance.More by opening out the throttle after miniature gears engages, can change mind for chaufeur and prepare, therefore can improve engine restart.

In time T ₄₄, brake pedal is unclamped by chaufeur, and this is interpreted as chaufeur and changes mind to stop driving engine.The fuel injection is reruned and starter provides the engine starting torque by engaging miniature gears.After engine restart and short time, miniature gears returns.In time T ₄₄And time T ₄₅Between, driving engine accelerates and slows down during the travel conditions that changes.Just to arrive time T ₄₅Brake application again before.

In time T ₄₅, the burning and the driving engine that stop in driving engine reduce speed now.After its short time, engine speed is reduced to less than upper NVH engine speed threshold value 2402.Miniature gears responding engine speed begins to advance less than upper NVH engine speed threshold value and greater than lower NVH engine speed threshold value, but the incomplete engage engine flywheel of miniature gears.Responding engine speed and miniature gears state engine air throttle are adjusted to primary importance 2410.Engine speed continue to reduce and when engine speed during less than lower NVH engine speed threshold value 2404 and greater than engaging speed 2406 throttle gate be adjusted to the 3rd position 2414.The 3rd position 2414 is opened less than primary importance 2410 and the second place 2412.The miniature gears engage engine flywheel during less than lower NVH engine speed threshold value 2404 and greater than engaging speed 2406 when engine speed.Therefore, response miniature gears position and engine speed throttle gate are adjusted to the 4th position.The 4th 2416 to the three positions 2414, position is opened more.The 4th position can provide additional air for driving engine, makes in the situation that the operator changes mind that driving engine can restart than being easier to.Do not keep the joint engine speed to reach zero in the situation that have the operator to change mind with miniature gears.

In time T ₄₆, operator's release the brake and driving engine restart by responding the released joint miniature gears of this braking.The fuel injection also responds release actuator and engine restart request is subsequently reruned.

By this way, can regulate the position of engine air throttle to improve engine restart when driving engine is stopped.The position of responding engine speed and miniature gears status adjustment engine air throttle can help to provide the amount of air that can improve this engine starting for driving engine during engine stop.In addition, if miniature gears does not engage before engine stop, the Throttle Position of adjusting can by during engine stop predictably the control engine amount of air improve engine stop.

Provide the method and system of Fig. 1-3 and Figure 23-24 for the rotation that stops driving engine, comprising: stop the fuel supply to the engine cylinder of burned air and fuel; The state that the order starter never engages with driving engine is to the joint of the state that engages with driving engine; With according to the starter position of engage engine adjusting joint valve whether.By this way, driving engine can more be ready to start if the operator changes mind.The method comprises that starter passes through the miniature gears engage engine.The method is included in the first engine speed range and throttle adjustment is not arrived primary importance during engage engine when starter.The method is included in the first engine speed range and when the starter engage engine, throttle adjustment is arrived the second place, and this second place is opened more than primary importance.

In one example, the method also is included in the interior starter of predetermined crankshaft angles window and is ordered engage engine.The method comprise this crankshaft angles window the top dead point of cylinder stroke ± 40 crankshaft angles in.The method is included in that between the starter joint aging time of order, engine speed reduces.

Provide the method and system of Fig. 1-3 and Figure 23-24 for the rotation that stops driving engine, comprising: stop the fuel supply to the engine cylinder of burned air and fuel; Order the not starter engage engine of engage engine; With according to the starter position of engage engine and engine speed modulation throttle gate whether.When the method is included in engine speed less than threshold velocity with the position adjustments of throttle gate to closed more position and at engine speed greater than threshold velocity with the position adjustments of throttle gate to the position of opening more.The method is included in the first engine speed range and throttle adjustment is not arrived primary importance during engage engine when starter.The method is included in the first engine speed range and when the starter engage engine, throttle adjustment is arrived the second place, and this second place is opened more than primary importance.The method be included in the second engine speed range when starter not during engage engine with throttle adjustment to the three positions.The method is included in the second engine speed range when the starter engage engine throttle adjustment to the four positions, and open more than the 3rd position the 4th position.

The method and system of Fig. 1-3 and Figure 23-24 provides a kind of hybrid vehicle system, comprising: the driving engine that comprises throttle gate; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; Comprise the not starter of the basic status of engage engine; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And the controller that comprises executable non-transition instruction, with responding engine stop and before engine stop according to this starter position of engage engine adjusting joint valve during engine stop whether.

In one example, this Vehicular system comprise the response starter not the engage engine throttle gate be adjusted to primary importance.This Vehicular system comprises that response starter engage engine throttle gate is adjusted to the second place, and this second place is opened more than primary importance.This Vehicular system also comprises additional instruction, with responding engine speed adjusting joint valve arrangement.This Vehicular system also comprises additional instruction, with the crank angle position engage engine of being scheduled to.This Vehicular system comprises that also this predetermined crank angle position is the top dead point ± 40 crankshaft angles from compression stroke cylinder.This Vehicular system also comprises additional instruction, to stop attempting start the engine during lower than engaging speed and higher than zero engine speed at engine speed.

With reference now to Figure 25,, Figure 25 illustrates the diagram of circuit for the method for regulating tail-off velocity profile and engine rotation stop position.The method of Figure 25 can be stored in the non-transient memory device of the controller 12 in Fig. 1-3 as executable instruction.

2502, method 2500 judges the engine stop rotation requires whether to occur.Engine stop rotation requirement can provide with controller or operator.Controller can automatically stop driving engine and not have the operator to stop and/or input that the dedicated actuator of unique function of start the engine provides from having.For example, automatic engine stop as the operator, ignition lock is not occured when being arranged on off-state.Alternately, when the operator unclamps accelerator pedal, automatic engine stop can occur.If method 2500 judges that engine stops are required, answer is "yes" and method 2500 proceeds to 2504.Otherwise answer is that "No" and method 2500 proceed to and withdraw from.

2504, method 2500 whether judges engine rotation in the situation that the transmission system disconnect-type clutch slides is stopped.Whether method 2500 judgements should stop according to operating mode driving engine when the transmission system disconnect-type clutch slides.In one example, when the very short time stopped driving engine, driving engine can stop and not having the transmission system disconnect-type clutch to slide when hope.For example, can wish to stop very soon driving engine when requiring engine stop when engine speed is relatively lower.On the other hand, when sliding, the transmission system disconnect-type clutch can stop driving engine when engine speed is higher when requiring engine stop.The transmission system disconnect-type clutch of opening also should be mentioned that during some situations in the situation that can stop engine rotation.Engine rotation will be stopped if method 2500 judgements are in the situation that the transmission system disconnect-type clutch slides, and answer is "yes" and method 2500 proceeds to 2530.Otherwise answer is that "No" and method 2500 proceed to 2506.

2530, method 2500 is determined the transmission clutch tubing pressure.In one example, the transmission clutch oil pressure of hope can be based on will keep the amount of the clutch pressure of vehicle stop on road when driving engine stops the rotation.Therefore, if vehicle stop on the slope, the transmission clutch tubing pressure of wishing can increase.In one example, the transmission clutch tubing pressure of hope be rule of thumb determine and be stored in table or function by road grade and vehicle mass index.Method 2500 proceeds to 2532 after the transmission clutch tubing pressure of hope is determined.

2532, method 2500 is by the speed rotation DISG of rotary speed variator oil pump with the transmission clutch tubing pressure that hope is provided.This DISG is connected in face of fluid torque converter, and this face of fluid torque converter fluid be connected in transformer turbine.Transmission oil pump is driven by face of fluid torque converter, and when rotation transmission oil pump provide oil pressure to transmission clutch.In one example, the transmission clutch tubing pressure index of hope comprises rule of thumb the table of value of the DISG speed of the transmission clutch tubing pressure that hope is provided of determining.This DISG speed is controlled in from the value of this table output from this table output and this DISG speed.Method 2500 proceeds to 2534 after DISG begins with the speed rotation of hope.

2534, method 2500 stops to the fuel flow of engine cylinder and spark.Fuel flow to cylinder stops by closing fuel oil atomizer.And fuel flow can stop with continuous order according to the engine combustion order, makes when engine rotation is stopped by order not fuel up partly of cylinder.Method 2500 proceeds to 2536 after the fuel flow of giving engine cylinder and spark stop.

2536, method 2500 makes the transmission system disconnect-type clutch slide to realize the engine speed track of wishing.In one example, the transmission system disconnect-type clutch of rule of thumb determining is used and sliding trace is stored in memory device and is applied to the transmission system disconnect-type clutch when requiring engine stop.When producing engine stop and require this sliding trace table according to engine speed with different speed to transmission system disconnect-type clutch applying pressure.Alternately, the transfer function that experience is determined should be exerted oneself or pressure according to the transmission system disconnect-type clutch Output pressure transmission system disconnect-type clutch of hope, and the transmission system disconnect-type clutch pressure of this hope is the basis for the operating transmission system disconnect-type clutch.This other places, this sliding trace can comprise the timing when pressure will be provided for the transmission system disconnect-type clutch.For example, after fuel quantity offers engine cylinder the last time before engine stop, this pressure can put on the transmission system disconnect-type clutch in specific crankshaft angles.Therefore, time opening of applying of transmission system disconnect-type clutch pressure and the pressure speed that puts on the transmission system disconnect-type clutch is stored in memory device and uses when sending engine stop and require.Method 2500 proceeds to 2538 after beginning to use transmission system disconnect-type clutch pressure distribution chart.

2538, method 2500 order transmission clutchs connect/fetter (tie) in case of transmission with transmission output shaft.Transmission output shaft can be connected in change-speed box by the transmission clutch that is applied to simultaneously except the transmission system disconnect-type clutch in the identical time, and as U.S. Patent application No.12/833,788 is disclosed.Change-speed box order method 2500 after the coupled condition is being proceeded to 2540.

2540, method 2500 is opened the transmission system disconnect-type clutch.When engine speed substantially equal zero (for example, 100RPM or following) and driving engine when having stopped at the position of hope this transmission system disconnect-type clutch can open.Alternately, this transmission system disconnect-type clutch can be opened when engine speed drops to predetermined value.Therefore, by changing the operation of transmission system disconnect-type clutch, method 2500 can be partly or whole control engine speed track drop to zero engine speed.Method 2500 proceeds to and withdraws from after the transmission system disconnect-type clutch is opened.

2506, if the transmission system disconnect-type clutch is not yet closed, the closed transmission system disconnect-type clutch of method 2500.The duty cycle signals that increases this transmission system disconnect-type clutch applying pressure by increase can closed this transmission system disconnect-type clutch.Method 2500 proceeds to 2508 after closed this transmission system disconnect-type clutch.

2508, method 2500 stops to the fuel flow of engine cylinder and spark.As at fuel flow and the spark that can stop as shown in the of 2534 to engine cylinder.Method proceeds to 2510 after stopping to the fuel flow of engine cylinder and spark.

2510, method 2500 adjusting DISG speed and torque are to provide the engine speed distribution graph of hope during stopping engine rotation.In one example, one group of engine speed track rule of thumb determining is stored in memory device and is used as the basis that stops driving engine.For example, if engine speed greater than the engine speed from the engine speed track of memory index, the DISG torque absorbs increases, engine speed is directed to the engine speed distribution graph of hope.If engine speed is less than the engine speed from the engine speed track of memory index, the DISG torque increases, engine speed is directed to the engine speed distribution graph of hope.The engine speed trajectory table is illustrating engine speed according to engine speed with different speed when producing when engine stop requires.In addition, the engine speed track can comprise that when the engine speed track will be by the controlled timing of DISG.For example, before engine stop after last fuel quantity offers engine cylinder, can be controlled by DISG for specific crank shaft angle number of degrees engine speed track.Therefore, the original application time of engine speed distribution graph and engine speed reduce that speed is stored in memory device and can be controlled by DISG when sending engine stop and require.After the application of transmission system disconnect-type clutch pressure distribution chart began, method 2500 proceeded to 2512.

2512, method 2500 order transmission clutchs are connected in case of transmission with transmission output shaft.Transmission output shaft can be connected in change-speed box by the transmission clutch that is applied to simultaneously except the transmission system disconnect-type clutch in the identical time, as U.S. Patent application No.12/833,788 is disclosed, and this application is incorporated into this by reference fully.Change-speed box order method 2500 after the coupled condition is being proceeded to 2514.

2514, method 2500 is opened the transmission system disconnect-type clutch under predetermined engine speed.When engine stop, this transmission system disconnect-type clutch can be opened so that driving engine can coast rotate and provide pressure to transmission clutch to zero velocity DISG continuation simultaneously.In one example, this transmission system disconnect-type clutch can be opened under predetermined engine speed, the speed of the engine speed that should predetermined engine speed begins based on engine stop (engine speed that for example, stops to the fuel flow of engine cylinder) and engine speed decline.And this transmission system disconnect-type clutch can be opened with further control engine stop position in specific crankshaft angles.Engine speed fall off rate when being required by engine stop and the table of engine speed index or function output are in the situation that the engine location that the transmission system disconnect-type clutch is opened.In one example, the engine location (for example, the predetermined bent axle interim of the cylinder in compression stroke) of the possibility that stops corresponding to the engine location that improves in hope of this position.Method 2500 proceeds to 2516. after opening the transmission system disconnect-type clutch

2516, method 2500 is determined the transmission clutch pipe pressure of hope.The transmission clutch pipe pressure of this hope is determined as described in 2530.Method 2500 proceeds to 2518 after the transmission clutch pipe pressure of determining this hope.

2518, method 2500 rotation DISG are to keep the transmission clutch tubing pressure of this hope.Can be as at 2532 described rotation DISG.Method 2500 proceeds to and withdraws from after order DISG supplies with the transmission clutch tubing pressure of wishing.Should be pointed out that DISG can periodically stop and restarting to keep the transmission clutch tubing pressure.If the transmission clutch tubing pressure has breakthrough rate slowly, can order DISG to stop.Drop to threshold level as the transmission clutch tubing pressure, DISG can be reused.

By this way, can the control engine stop position for motor vehicle driven by mixed power.By periodically providing torque from DISG to driving engine, the transmission system disconnect-type clutch can be regulated the engine stop distribution graph from the idling speed to the zero velocity, so engine stop is in the position of hope.

With reference now to Figure 26,, Figure 26 illustrates the exemplary sequential that stops driving engine for the method according to Figure 25.The sequential of Figure 26 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 26 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The second figure from the top of Figure 26 represents the graph of relation of DISG speed and time.Y-axis represents that DISG speed and DISG speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd figure from the top of Figure 26 represents should the exert oneself graph of relation of (for example, closed this transmission system disconnect-type clutch applied force) and time of transmission system disconnect-type clutch.Y-axis represents that the transmission system disconnect-type clutch should be exerted oneself and the transmission system disconnect-type clutch should be firmly increases along the direction of arrow of Y-axis.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 26 represents the graph of relation of fuel supply condition and time.Y-axis represent the fuel supply condition and when trace is in higher level the fuel supply engine, fuel supply engine not when trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 26 represents that change-speed box connects (tie-up) state and the graph of relation of time.Y-axis represent the change-speed box coupled condition and when trace is in higher level change-speed box be connected.Change-speed box is not connected when trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₄₇, the level that engine speed equals DISG speed and raising.Driving engine is connected mechanically to DISG via the transmission system disconnect-type clutch.When this transmission system disconnect-type clutch input speed equaled this transmission system disconnect-type clutch output speed, this transmission system disconnect-type clutch was fully closed.And this transmission system disconnect-type clutch is fully closed when the transmission system separating force is in higher level.As shown in when providing state to be in higher level as fuel, fuel offers driving engine.So do not connect because the change-speed box coupled condition is in lower level change-speed box.

In time T ₄₈, response operating mode (for example low motor torque demand and application car brakeing) driving engine is in stopped status by order.The fuel that is converted to as shown in lower level to driving engine as the fuel supply condition is stopped.In addition, response stops the requirement adjusting DISG speed/torque of driving engine with control engine speed and location track.In one example, engine speed and location track are stored in memory device and response is stored in the poor DISG of adjusting torque between the engine speed track of the engine speed of the reality in memory device and hope.For example, if the engine speed of the specific time reality after requiring engine stop less than the engine speed of hope, the DISG torque increases the engine speed of reality is shifted to the engine speed of hope.In another example, if the specific time after requiring engine stop, specific engine location (for example cylinder top dead point compression stroke) surpasses the position of wishing, can increase the negative torque of DISG, with the driving engine that slows down with larger speed.

In time T ₄₉, responding engine reaches predetermined speed transmission system disconnect-type clutch and is opened.And the power-transfer clutch of change-speed box begins to be employed, so transmission output shaft is connected in case of transmission and vehicle chassis.By opening at a predetermined velocity the transmission system disconnect-type clutch, may be during engine stop better control engine speed allow simultaneously the DISG operation.In this example, DISG is stopped, but in other examples, thereby it can continue rotation and provides prime power with the operation transmission oil pump.Stop driving engine and DISG in short time after opening disconnect-type clutch.

By this way, driving engine can stop making stopping period can control engine the position.By the control engine stop position, can improve the engine restart consistency of performance.

In time T ₅₀, operation response person loosen the brake (not shown) DISG is accelerated and provide torque to vehicle transmission system.And DISG assists start the engine.Specifically, the transmission system disconnect-type clutch is partly closed, with from DISG to the driving engine transmitting torque.Fuel and spark offer driving engine with the burning in supporting engines, as provided state-transition to as shown in higher level by fuel.At last, transmission clutch is also opened in order to respond the releasing brake device and is unclamped this change-speed box.When responding engine speed reaches DISG speed, the transmission system disconnect-type clutch is by fully closed.

By this way, when offering vehicle transmission system with accelerating vehicle, torque can restart driving engine.And, the method operation that the transmission system disconnect-type clutch can disturb to reduce drive train torque.

In time T ₅₀And time T ₅₁Between, supply with torque according to driver requested driving engine and DISG to vehicle transmission system.In this example, the transmission system disconnect-type clutch remains closed; But it can be opened and not stop driving engine sometimes.

In time T ₅₁, response operating mode (for example, low motor torque demand and application car brakeing) driving engine is commanded to stopped status.Fuel supply to driving engine is stopped, and provides state-transition to arrive as shown in lower level as fuel.Use the power train disconnect-type clutch also by the order slip by reducing the transmission system disconnect-type clutch.In one example, transmission system disconnect-type clutch sliding ratio is as being stored in memory device from the function that requires the later time of engine stop.If engine speed is from the velocity variations of hope, this sliding ratio can increase or reduce.For example, if the specified time after engine stop requires, engine speed is less than the engine speed of hope, and the transmission system disconnect-type clutch slides and can should exert oneself to reduce by increasing disconnect-type clutch.By this way, additional torque can offer driving engine by DISG, the engine speed that makes the engine speed coupling wish.Order this DISG speed to making transmission oil pump that the speed of the oil pressure of hope can be provided.

In time T ₅₂, engine speed reaches predetermined speed and transmission clutch and is employed that transmission output shaft is connected in vehicle chassis.DISG continues rotation so oil pressure offers transmission clutch.

By this way, the transmission system disconnect-type clutch can slide to provide the engine stop position of hope during the engine stop process.In some instances, the engine stop position of this hope is that specific steam cylinder piston stops at position in the predetermined number of degrees before the top dead point compression stroke of this cylinder.

The method and system of Fig. 1-3 and Figure 25-26 provides the engine stop method, comprising: the requirement that response stops engine rotation being adjusted to the speed of transmission system integrated actuating machine/electrical generator (DISG) speed of the hope that the transmission clutch of hope tubing pressure is provided; And transmission system disconnect-type clutch in transmission system between this DISG and driving engine is slided with the position of engine stop in hope.The method comprises that the position of this hope is the predetermined bent axle number of degrees before the top dead point compression stroke of selected cylinder.The method comprises that also requirement that response stops engine rotation stops fuel flow and the spark to engine cylinder.The method comprises that also response stops engine rotation transmission output shaft is connected in case of transmission.

In some instances, the method also is included in basic zero engine speed and opens the transmission system disconnect-type clutch.The method also is included in driving engine and continues this DISG of rotation when zero velocity.The method also is included in and starts when engine speed is zero and this DISG that stops using.

The method and system of Fig. 1-3 and Figure 25-26 provides the engine stop method, comprising: response stops the closed transmission system disconnect-type clutch of requirement of engine rotation; The speed of transmission system integrated actuating machine/electrical generator (DISG) is adjusted to towards the engine speed distribution graph of the hope of zero engine speed deceleration; Open the transmission system disconnect-type clutch under predetermined engine speed.The method comprises that responding the requirement that stops driving engine being connected in case of transmission with transmission output shaft.The method comprises that also requirement that response stops driving engine stops fuel flow and the spark to engine cylinder.The method comprises that the transmission system disconnect-type clutch is in transmission system between driving engine and DISG.

In some instances, the method also is included in and opens the transmission system disconnect-type clutch under predetermined engine speed.The method comprises the speed that increases DISG when engine speed during less than the engine speed distribution graph of hope.The method comprises the speed that reduces DISG when engine speed during greater than the engine speed distribution graph of hope.

The method and system of Fig. 1-3 and Figure 25-26 provides a kind of hybrid vehicle system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Be connected in the change-speed box of driving engine via this transmission system disconnect-type clutch selectivity; And comprising the controller that is stored in the executable instruction in the non-transient memory device of pump impeller, the operation of this transmission system disconnect-type clutch is regulated in the requirement that stops engine rotation with response.

In some instances, Vehicular system comprises closed transmission system disconnect-type clutch at least in part.This Vehicular system comprises complete closed transmission system disconnect-type clutch.This Vehicular system comprises that additional instruction is to open this transmission system disconnect-type clutch under preset engine speed.This Vehicular system also comprises providing the speed operation DISG of the transmission clutch tubing pressure of hope.This Vehicular system comprises that also additional instruction is with the DISG that optionally stops using under zero engine speed.

With reference now to Figure 27,, Figure 27 illustrates the method that is used for stopping this driving engine when time on the gradient that vehicle parking that driving engine moves is therein changing.The method of Figure 27 can be stored in the non-transient memory device of the controller in Fig. 1-3 as executable instruction.

2702, method 2700 judges whether the vehicle that driving engine moves therein stops.In one example, when being zero, car speed can determine vehicle stop.If method 2700 judgement vehicle stops, answer is "yes" and method 2700 proceeds to 2704.Otherwise answer is that "No" and method 2700 proceed to and withdraw from.

2704, method 2700 judges whether to satisfy engine stop condition.Engine stop condition can include but not limited to that driver requested torque is less than the threshold value torque, engine speed is less than threshold velocity and apply car brakeing.In another example, can use other engine stop condition.If engine stop condition occurs, answer is "yes" and method 2700 proceeds to 2706.Otherwise answer is that "No" and method 2700 proceed to and withdraw from.

2706, method 2700 is estimated road grade and vehicle mass.Road grade can be determined by clinometer in one example.Vehicle mass can be as determining described at 904 of Fig. 9.In addition, method 2700 stops engine rotation.Determine that at vehicle mass and road grade method 2700 proceeds to 2708 afterwards.

2708, method 2700 judges that whether road grade is greater than the first threshold road grade.In one example, this first threshold or other threshold value road grades function that can be vehicle mass.For example, if vehicle mass increases, the first threshold road grade can reduce.If the method 2700 current road grades of judgement are greater than the first threshold road grade, answer is "yes" and method 2700 proceeds to 2716.Otherwise answer is that "No" and method 2700 proceed to 2710.

2710, method 2700 keeps the change-speed box oil pressure to allow the transmission gear gear shift, and if change-speed box is not at second gear, from lower shelves (for example first grade) gear shift to higher shelves (for example, second gear).Arrive higher shelves by gear shift, vehicle mass increases on wheel effectively, so moving vehicle is more difficult.The change-speed box oil pressure can keep via electric oil pump.Method 2700 proceeds to 2712 after shifting of transmission.

2712, method 2700 judges whether to require vehicle to accelerate or increases torque-demand.In one example, the driver requested of increase determined from accelerator pedal position.If the torque-demand that method 2700 judgements require vehicle to accelerate or increase, answer is "yes" and method 2700 proceeds to 2714.Otherwise answer is that "No" and method 2700 proceed to 2710.

2714, method 2700 increases offer the torque of transmission system and make transmission downshifts arrive the shelves (for example, first grade) of reduction with accelerating vehicle.Drive train torque can or increase by driving engine after start the engine by DISG.Can start the engine by being rotated by DISG or starter starting with lower power output capacity.Shifting of transmission to the first grade and give the torque of transmission system increase after method 2700 proceed to and withdraw from.

2716, method 2700 judges that whether road grade is greater than the Second Threshold road grade.If the method 2700 current road grades of judgement are greater than the Second Threshold road grade, answer is "yes" and method 2700 proceeds to 2724.Otherwise answer is that "No" and method 2700 proceed to 2718.

2718, not at higher shelves and if method 2700 keeps the change-speed box oil pressure to allow the shifting of transmission change-speed box, gear shift is to the shelves (for example, third gear) higher than second gear.Arrive the shelves higher than second gear by gear shift, vehicle mass increases on wheel effectively, so moving vehicle is more difficult.The change-speed box oil pressure can keep via electric oil pump.Method 2700 proceeds to 2718 after transmission downshifts.

2720, method 2700 judges whether to require vehicle to accelerate or the torque-demand of increase.In one example, the torque-demand of increase is determined from accelerator pedal position.If the torque-demand that method 2700 judgements require vehicle to accelerate or increase, answer is "yes" and method 2700 proceeds to 2722.Otherwise answer is that "No" and method 2700 proceed to 2718.

2722, method 2700 increases and offers the torque of transmission system and make transmission downshifts to the first grade with accelerating vehicle.Drive train torque can increase via driving engine via DISG or after start the engine.Driving engine can start by being rotated by DISG or starter starting with lower power output capacity.Gear shift to the first grade and after the amount of torque that offers transmission system increases method 2700 proceed to and withdraw from.

2724, method 2700 is used car brakeings, keeps the change-speed box oil pressure allowing shifting of transmission, and if change-speed box is not first grade of gear shift to the first grade.Can be ready to accelerate by gear shift to the first grade and brake application when vehicle stop is on the gradient.And, by brake application not on the lower gradient, can reduce brake wear and reduce simultaneously vehicle mobile.The change-speed box oil pressure can keep via electric oil pump.Method 2700 proceeds to 2726 after using car brakeing.

2726, method 2700 judges whether to require vehicle to accelerate or the torque-demand of increase.If the torque-demand that method 2700 judgements require vehicle to accelerate or increase, answer is "yes" and method 2700 proceeds to 2728.Otherwise answer is that "No" and method 2700 proceed to 2724.

2728, method 2700 increases torque and the release the brake that offers transmission system, so vehicle can accelerate.Drive train torque can increase via driving engine via DISG or after start the engine.Driving engine can start by being rotated by DISG or starter starting with lower power output capacity.Method 2700 proceeds to and withdraws from after car brake is released.

As described herein, for example when vehicle stop on the horizon or in the situation that vehicle stop can utilize engine cutoff or out of service, with fuel saving.At this run duration, the transmission system disconnect-type clutch can be opened.Therefore when stationary vehicle, might be on uphill road, driving engine cuts out to shut down usually.Therefore another pressure source outside driving engine can be used for keeping transmission pressure when tail-off.In some instances, auxiliary motor-drive pump can be used for keeping transmission pressure.In other examples, DISG speed does not drop to zero when vehicle stop, but remains on low speed, usually is significantly less than idling (for example, 200-500RPM) to keep transmission pressure.Under these situations, turbine transformer output torque or be zero (when output speed is zero) or be not enough to when braking the value that prevents that vehicle from rolling backward after released.A kind of approach is used wheel braking and is rolled backward to prevent vehicle; But when effective, this also can cause the vehicle startup degradation in some cases, or requires Slope Transducer.

Another problem is when the operator steps on brake pedal, can use car brakeing and regenerative according to operating mode and brake one of them or both.For example, the actuating torque that (be with or without engine shutdown and the transmission system disconnect-type clutch is opened) produced by DISG during regenerative braking can with friction wheel braking torque balance, so that the rate of deceleration corresponding to the hope of brake-pedal load to be provided.Keep function because regenerative braking torque when vehicle is about to stop reduces to carry out the hillside fields, the major part of friction braking torque must " deposit " therefore reduce the benefit of regenerative braking.Therefore another kind of hillside fields keeping method be wish in order to strengthen the ability of utilizing the regenerative braking.

In one example, the turbine transformer based on automatic transmission with hydraulic torque converter can be equipped with free-wheel clutch.By this way, and if if keep transmission fluid pressure change-speed box (for example to remain on gear when stationary vehicle, opposite with neutral gear), then free-wheel clutch as the holding device device effect of mechanical hillside fields, when vehicle driving up to prevent that vehicle from rolling backward.But, according to vehicle mass and gradient angle, change-speed box is remained on lower shelves, for example, first grade, on the steeper gradient, for example 6%, the vehicle that is merely able to during take-off the brake slow down rolls backward.In this example, if change-speed box is in first grade, can be enough to overcome the free-wheel clutch holding torque as the amount of torque of the sinusoidal function of gradient angle and vehicle matter.Therefore, in one example, if need change-speed box to remain on shelves than first grade high preventing that on the design maximum gradient vehicle from rolling backward, change-speed box can remain on the shelves than first grade high.For example, before on the horizon stopping change-speed box can gear shift to higher shelves in order to can realize that the hillside fields keeps, for example according to the gradient of estimating during Vehicle Driving Cycle.

Greater than the predetermined gradient, for example 6%, can be used for determining the gradient based on the longitudinal sensor of slope detection system.Therefore, in some instances, controller can determine that whether the current gradient surpasses the upper limit, if surpass, can brake application system, keep preventing that also vehicle from rolling backward operation except assisting the hillside fields.

Heavier vehicle or can have the vehicle of high load, light truck for example, it is favourable using a plurality of power-transfer clutchs in change-speed box, to increase maximum change-speed box holding torque.By using two or more power-transfer clutchs when the stationary vehicle, the change-speed box input can " connect " in case of transmission.This method also can be as the part of engine restart vehicle startup method, with when vehicle formation gear-box output torque when stopping starting.Therefore, by keeping transmission pressure when the vehicle stop and using power-transfer clutch (a plurality of power-transfer clutch) to keep gear or to make change-speed box be in coupled condition, when operator's release the brake is to prevent that vehicle from rolling backward.

With reference now to Figure 28,, Figure 28 illustrates the exemplary sequential that stops driving engine when the vehicle that moves therein when driving engine according to the method for Figure 27 is parked on the slope.The sequential of Figure 28 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 28 represents the graph of relation of car speed and time.Y-axis represents that car speed and car speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The second figure from the top of Figure 28 represents the graph of relation of road grade and time.Y-axis represents that road grade and road grade increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The horizon 2802 expression first threshold gradients.The Second Threshold gradient of the horizon 2804 expression first threshold gradients.

The 3rd figure from the top of Figure 28 represents the graph of relation of Transmission gear and time.Y-axis represents that Transmission gear and corresponding Transmission gear identify along Y-axis.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 28 represents the graph of relation of engine condition and time.Y-axis represents engine condition and driving engine operation when the engine condition trace is in higher level.Engine stop when the engine condition trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 28 represents the graph of relation of car brakeing state and time.Y-axis represent the car brakeing state and when car brakeing state trace is in higher level car brakeing be employed.Car brakeing is not used when car brakeing state trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 6th figure from the top of Figure 28 represents the graph of relation of vehicle brake pedal and time.Y-axis represent the vehicle brake pedal state and when vehicle brake pedal state trace is in higher level vehicle brake pedal be employed.Brake pedal is not used when car brakeing state trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₅₃, car speed raises, and road grade approaches zero, and change-speed box is in the 5th grade, is that vehicle is with high-performance cruise.Driving engine operation and not brake application pedal and braking.

In time T ₅₃And time T ₅₄Between, vehicle accelerates and the lower driver requested torque (not shown) of response is reduced to first grade from the 5th grade.Use car brakeing when the brake application pedal.In time T ₅₄Before the very short time, respond road grade and engine stop requirement shifting of transmission to second gear after vehicle stop.

In time T ₅₄, engine stop and change-speed box remain on second gear and appear at the active mass of the vehicle on wheel with increase.Keep using vehicle brake pedal and braking; But in some instances after vehicle stop, shifting of transmission after higher shelves during when brake pedal application car brakeing can unclamp.Road grade keep to approach zero and lower than the first gradient threshold value 2802.

In time T ₅₅, the chaufeur loosen the brake.The car brakeing of response loosen the brake is released.Change-speed box also lowers category first grade and improves the vehicle acceleration with response chaufeur take-off the brake.Also response response chaufeur take-off the brake restarts driving engine.Vehicle begins the short time acceleration after response increases driver requested torque loosen the brake.

In time T ₅₅And time T ₅₆Between, vehicle accelerates and then responds driver requested torque and brake application pedal and braking deceleration as shown in braking mode and brake pedal status.Change-speed box is also from five grades of first grade of shifts to the when vehicle accelerates and slow down.Road grade also increases and greater than 2802 elapsed time of first threshold road grade T ₅₆Chaufeur utilizes brake pedal and braking to make car retardation

In time T ₅₆, vehicle stop and transmission downshifts to the first grade are as shown in car speed and change-speed box trace.Driving engine continues operation when vehicle stop.

In time T ₅7, the response vehicle gradient is greater than the first threshold gradient 2802 and stop the requirement of driving engine, the change-speed box third gear that upgrades.The change-speed box shift increases the active mass of vehicle on wheel, makes vehicle more be difficult to roll down the gradient of increase.The change-speed box engine stop after the very short time that upgrades.By chaufeur still brake application pedal and car brakeing, but in some instances after vehicle stop, after upgrading higher shelves, change-speed box can unclamp car brakeing after brake pedal application.

In time T ₅₈, chaufeur loosen the brake and drg response brake pedal is released and unclamp.Change-speed box is from third gear lower category first grade and engine starting, as shown in changing by engine condition.Braking and the released change state of engine response brake pedal.Vehicle begins to accelerate momently after the driver requested torque (not shown) that the brake pedal response increases is released.

In time T ₅₈And T ₅₉Between, vehicle accelerates and then responds the application of driver requested torque and brake pedal and braking and slow down, as shown in braking mode and brake pedal status.Change-speed box is also from five grades of first grade of speed changes to the when vehicle accelerates and slow down.Road grade also increases and passes through T greater than Second Threshold road grade 2804 ₅₉Time.Brake pedal and braking are used with decelerating vehicles by chaufeur.In time T ₅₉Vehicle begins to stop before.

In time T ₅₉, engine stop and respond this brake pedal, low driver requested torque and road grade and use car brakeings greater than threshold value road grade 2804.Brake pedal trace and braking mode trace are in higher level, expression brake application and brake pedal.

In time T ₆₀, this brake pedal that unclamps of chaufeur loosen the brake and engine response and starting.Braking mode remains on higher level, the expression brake application.The response road grade continues brake application greater than Second Threshold road grade 2804 and driver requested torque less than threshold value torque (not shown).Vehicle is in quiescence, is as shown in the of zero as the car speed trace.

In time T ₆₁, the driver requested torque car brakeing that driver requested torque (not shown) increases and response increases is released.Vehicle also responds the driver requested torque of increase and begins to accelerate, as shown in car speed increases.

By this way, the vehicle gradient that vehicle and transmission system can response change, make when vehicle on the gradient and during engine stop vehicle keep substantially static.When vehicle stop was on the gradient of increase, vehicle mobile reduced measure and increases gradually.

The method and system of Fig. 1-3 and Figure 27-28 provides the method for vehicle stop, comprising: the response road grade upgrades change-speed box when stationary vehicle; Automatically stop the driving engine of this vehicle with the response vehicle-state.The method comprises that the shelves item increases when the road gradient increases.The method comprises, automatically stops driving engine and comprises that the low driver requested torque of response stops driving engine.The method comprises, automatically stops driving engine and comprises that also the response car speed stops driving engine.The method comprises, automatically stops driving engine and comprises that response vehicle brake pedal state stops driving engine.The method is included in the situation that does not have the chaufeur gearshift to require and makes shift of transmission.The method also be included in change-speed box upgrade after the driver requested torque that increases of response make transmission downshifts.

The method and system of Fig. 1-3 and Figure 27-28 also provides the method for vehicle stop, comprising: during the first situation, response the first road grade makes change-speed box first gear ratio that upgrades when stationary vehicle; During the second situation, response the second road grade makes change-speed box second gear ratio that upgrades when stationary vehicle; Automatically stop driving engine with the response vehicle-state.The method comprises that the first gear ratio is the gear ratio lower than the second gear ratio, and when not gear shift of change-speed box during to the first gear ratio change-speed box not at the first gear ratio.The method is included in the driver requested torque that during the first and second situations, response increases after change-speed box upgrades and makes transmission downshifts.

In some instances, the method comprises that the second road grade is greater than the first road grade.When also being included in the change-speed box shift, the method keeps the change-speed box oil pressure.The method is included in change-speed box shift engine stop before, and keeps the change-speed box oil pressure via transmission system integrated actuating machine/electrical generator.The method also comprises response vehicle mass selection the first gear ratio and the second gear ratio.

The method and system of Fig. 1-3 and Figure 27-28 provides a kind of power Vehicular system, comprising: driving engine; The change-speed box that is connected in the mode of the mechanical connection selected with this driving engine; With comprise the controller that is stored in the executable instruction in non-transient memory device, be used for that the response road grade makes the change-speed box shift when stationary vehicle that driving engine moves therein, this controller also comprises the instruction of response road grade application car brakeing.This Vehicular system comprises wherein stopped driving engine before shifting of transmission, and wherein the starter/generator by the transmission system combination keeps the change-speed box oil pressure.This Vehicular system comprises that also additional instruction is used for the response vehicle mass and selects the first gear ratio and the second gear ratio.

In some instances, this Vehicular system also comprises additional instruction, is used for the driver requested torque that response increases after stationary vehicle and makes transmission downshifts.This Vehicular system also comprises additional instruction, is used for the driver requested torque that response increases after stationary vehicle and makes change-speed box unclamp car brakeing.This Vehicular system comprises that wherein this change-speed box is automatic transmission with hydraulic torque converter.

With reference now to Figure 29 A and 29B,, Figure 29 A and 29B illustrate for the diagram of circuit of the method for car brakeing is provided via vehicle transmission system.The method of Figure 29 A and 29B can be stored in the non-transient memory device of the controller in Fig. 1-3 as executable instruction.

2902, method 2900 is determined operating mode.Vehicle working condition can include but not limited to drive train torque, DISG speed and the battery charge will state of engine speed, car speed, brake pedal position, hope.Method 2900 proceeds to 2904 after definite operating mode.

2904, method 2900 judges whether to exist the situation for automatically stopping driving engine.Driving engine can respond vehicle condition and not respond and have the input that starts and/or stop the device (for example, on/off key switch) of unique function of engine rotation and automatically stop.For example, when the operator during to engine rotation engine stop key driving engine automatically do not stop.But if the operator unclamps the accelerator pedal with function that the drive train torque demand is provided, driving engine responsively torque-demand stops automatically.Exist if method 2900 judgements stop the situation of driving engine automatically, answer is "yes" and method 2900 proceeds to 2906.Otherwise answer is that "No" and method 2900 proceed to and withdraw from.

2906, method 2900 judges whether to require the transmission system car brakeing.Can require the transmission system car brakeing to reduce the amount of the wheel braking that is used for this vehicle of deceleration during car retardation.Wheel braking in a small amount for example, can provide the transmission system braking via driving engine or DISG when the vehicle descending, so that can be used for this vehicle that slows down.In one example, method 2900 can judge that the transmission system braking is required when vehicle accelerates and exists underneath drive to be torque request.If method judgement transmission system is braked be required, answer proceeds to 2910 for "Yes" and method 2900.Otherwise answering is that "No" and method 2900 proceed to 2908.

2908, method 2900 provides the torque of hope by DISG and/or driving engine to transmission system.By the engine combustion air-fuel mixture and rotate this transmission system positive motor torque can be provided.The amount that DISG can respond the electric current that flows to this DISG provides torque.Method 2900 proceeds to and withdraws from after the torque that hope is provided to transmission system.

2910, whether method 2900 judgement the capacity of amount of the car brakeing of the hope of providing is provided without driving engine DISG.In one example, whether the change-speed box shelves of method 2900 response car speeds, selection, the judgement of DISG torque absorbing capacity the capacity of amount of the car brakeing of the hope of providing is provided without Jake brake DISG.Specifically, the shelves determined DISG speed index of the table of describing the torque absorbing capacity of the DISG that rule of thumb determines from car speed and selection.If method 2900 judgements have the capacity of the amount of braking be used to the transmission system that hope is provided without driving engine DISG, answer is "yes" and method 2900 proceeds to 2916.Otherwise answer is that "No" and method 2900 proceed to 2912.

2912, method 2900 does not provide fuel rolling motor and engine rotation loss increase so transmission system braking to increase to driving engine.Can increase by regulating the valve timing engine spin loss.In one example, open near top dead point inspiration stroke inlet valve, and exhaust valve is opened in advance in exhaust stroke (for example, before 90 crank angle degrees after the top dead point compression stroke), loses and increases transmission system with the increase engine rotation and brake.By closure, the transmission system disconnect-type clutch driving engine that driving engine is connected in the retaining part that connects this transmission system can be rotated, as Figure 1-3.Method 2900 proceeds to 2914. after engine rotation and engine rotation loss increase

2914, method 2900 is transformed into electric energy with vehicle energy.Specifically, DISG enters in generator mode, wherein be transformed into electric energy from the rotating energy of wheel and be stored in storage battery or other energy accumulating devices in.In one example, the passing through change-speed box, be transformed into the electric energy that produces by the electric current of starter by turbine transformer and to the rotating energy of DISG from wheel that is provided by transmission system.So this electric energy can the stored energy storage device in.Method 2900 turns back to 2906 after vehicle energy is transformed into electric energy.

2916, method 2900 judges that whether the SOC of energy accumulating device is greater than the threshold value charge volume.In one example, SOC can determine according to the upper voltage of energy accumulating device.If the SOC of method 299 decision content storage devices is greater than threshold quantity, answer is "yes" and method 2900 proceeds to 2930.Otherwise answer is that "No" and method 2900 proceed to 2918.

In addition, when braking, the transmission system of driver requested increase can proceed to 2930 in 2916 methods 2900.For example, if chaufeur presses the button to enter the descending pattern, method 2900 proceeds to 2930 to increase the transmission system braking.

2918, method 2900 is converted to speed control mode with DISG from the torque master mode.In speed control mode, response DISG speed is regulated DISG output, the DISG speed that makes the DISG speed-shifting become to wish.In one example, during less than the DISG speed of reality, the DISG torque increases when DISG speed.Equally when DISG speed during greater than the DISG speed of reality, the DISG torque reduces.DISG make a response so that DISG can change the driveline speed that is caused by the torque variation with the speed control mode operation.As a result, can be with the constant revolution of hope at transmission system disconnect-type clutch transition period face of fluid torque converter, therefore the torque by the turbine transformer transmission is more constant.By this way, DISG reduces and may open the drive train torque interference that causes by the transmission system disconnect-type clutch.After in DISG admission velocity master mode, method 2900 proceeds to 2920.

2920, method 2900 stops engine rotation and stops fuel flow to engine cylinder by opening or disconnecting the transmission system disconnect-type clutch.Can open the transmission system disconnect-type clutch before the fuel flow in engine cylinder stops, making driving engine without burning not reduce driveline speed and in the torque of face of fluid torque converter.Engine rotation be stopped and the transmission system disconnect-type clutch begin to open after method 2900 proceed to 2922.

2922, the torque capacity that method 2900 is regulated TCC (TCC) is opened interference to eliminate the transmission system disconnect-type clutch.Because the amount of torque that passes to transmission system from driving engine changes, when the transmission system pattern changed to the energy generate pattern, the transmission system disconnect-type clutch began to open, and instantaneous pump impeller speed can change.In one example, the torque capacity of TCC is conditioned and is controlled, to obtain level and smooth transformation between the change of transmission system disconnect-type clutch state.Therefore, when opening, the transmission system disconnect-type clutch can keep more consistent car speed.For example, if face of fluid torque converter speed begins to reduce when the transmission system disconnect-type clutch is opened, can regulate TCC to increase slippage.Method 2900 proceeds to 2924 after regulating TCC.

2924, as described in 2914, method 2900 is transformed into electric energy with vehicle energy.Electric energy is directed to electric energy conversion storage device, and electric energy is held and time utilization afterwards.Device for converting electric energy can be storage battery or cond.Vehicle energy be transformed into electric energy begin after method 2900 proceed to 2926.

2926, after having been alleviated from the interference of opening the transmission system disconnect-type clutch, method 2900 is converted to the torque master mode.Method 2900 is also regulated DISG, and so that negative torque to be provided, the amount of this negative torque equals the amount that driving engine provides during deceleration fuel cutoff.

The amount of the braking torque that driving engine can provide can rule of thumb be determined and be stored in memory device.The Jake brake amount can comprise the adjusting of valve timing, oil temperature, engine speed, Throttle Position and bar pressure.This adjusting can be added in basic Jake brake torque take specified valve timing, engine temperature, engine speed, Throttle Position and bar pressure as feature.For example, the Jake brake torque can be that 90 ° of C, engine speed are to determine under the barometric pressure of 1500RPM, basic valve timing, closed throttle gate and 100kPA at oil temperature.The Jake brake torque can be regulated from basic braking torque when operating mode departs from this basic situation.

Current engine operating condition (for example, oil temperature, valve timing etc.) is determined and is table and/or the basis of function, this table and/or the Jake brake torque of function output under current working of rule of thumb determining for index.In case after the Jake brake torque under current working is determined, the DISG torque adjustment is arrived the Jake brake torque.By with the DISG torque adjustment to the Jake brake torque, during greater than threshold value, can provide braking torque without DISG as energy conversion device SOC from utilizing DISG to provide braking torque to be converted to via driving engine.

The DISG torque of negative or regeneration can continue the monitoring engine situation, so that can be revised along with engine operating condition changes.For example, if oil temperature descends and engine friction increases, when the fuel flow of giving driving engine was stopped, the negative DISG torque of imitateing the Jake brake torque can increase to reflect the variation of Jake brake torque.When there is no the fuel supply engine when engine rotation and when not burning in driving engine, method 2900 proceeds to 2928 after negative DISG torque is adjusted to the Jake brake torque.

2928, method 2900 automatic activations also increase the vehicle electrical load of selecting, and the time quantum of transmission system braking can be provided to provide to extend DISG.For example, if the time of vehicle descent run one elongated segment, energy accumulating device can charge fully, therefore can not accept extra charging.During this situation, DISG can stop providing charging to energy accumulating device, to reduce the possibility of energy accumulating device variation.But if additional electric charge offers Vehicular system, DISG can continue to provide charging to make the energy accumulating device charging not increase to energy accumulating device.

In one example, the electric current of Vehicular system that offers the electricity operation of selection during greater than threshold level when the energy accumulating device state of charge increases.In other examples, when the electric charge that is offered storage battery by DISG during greater than the threshold value charge rate, the electric current of Vehicular system that offers the electricity operation of selection increases.In some instances, when the energy accumulating device state of charge during greater than threshold level, engine rotation, DISG stops moving with regeneration mode, and provide the electric current of Vehicular system of the electricity operation of this selection to continue, until the electric charge of energy accumulating device reduce to the Second Threshold level and then DISG turn back to regeneration mode.When the electric charge of energy accumulating device is less than threshold level, the engine stop rotation.

The Vehicular system of the electricity operation of selecting can automatic activation and connection or is supplied to than the more electric current that requires.Wind shelves defroster device, exhaust-gas after-treatment heating arrangement, motor-drive pump and lamp before and after the Vehicular system of the electricity operation of selecting can include but not limited to.For example, front and back wind shelves defogger can activate and driver not, so chaufeur may recognize not that electric energy is consumed to extend with regeneration operation DISG.And the output of motor-drive pump (for example, petrolift) can be by increasing that the pump electric current increases and driver not.Equally, blowdown system heating device and car light can be activated to extend with regeneration mode operation DISG.Method 2900 proceeds to 2906 after regulating current consumer.

2930, if TCC (TCC) is locked, the slip that method 2900 increases on TCC.If TCC slides, the slip on this TCC further increases.TCC slides can reduce by the torque that connects or separately the transmission system disconnect-type clutch is introduced into transmission system and disturbs.In one example, in 2934, TCC is in check sliding-modes and response face of fluid torque converter velocity variations regulate this TCC.Method 2900 proceeds to 2932 after the slip of regulating on TCC.

2932, method 2900 makes in DISG admission velocity master mode after leaving the torque master mode and regulates the DISG torque, DISG speed is remained on substantially constant speed (the order DISG speed of for example ± 50RPM).In one example, the DISG velocity ratio of DISG speed and hope, and the poor electric current of regulating supply DISG of the DISG speed of response DISG speed and hope.If DISG speed is less than the DISG speed of hope, additional electric current offers DISG to increase DISG torque and speed.If DISG speed is greater than the DISG speed of hope, minimizing offers the electric current of DISG to reduce DISG speed and the torque that offers transmission system.Make DISG admission velocity master mode make DISG control drive train torque and do not cause that the undesirable driveline speed of chaufeur changes.Method 2900 proceeds to 2934 after making DISG admission velocity master mode.

2934, method 2900 with TCC capacity facility at steady state value or be converted to the new ride gain value that the TCC closed loop slide to be controlled.For example, when the face of fluid torque converter velocity variations, regulate and control the TCC transmission by the signal of the amount of torque of turbine transformer, disturb to reduce transmission system.In one example, regulate the TCC slippage according to the TCC transfer function of output TCC control signal dutycycle.This TCC transfer function is according to face of fluid torque converter speed and transformer turbine speed index.Method 2900 proceeds to 2936 after regulating the TCC capacity.

2936, method 2900 judges whether to exist the starter outside DISG.In one example, if the starter outside DISG can not obtain or at the state of variation, method 299 can judge that non-DISG starter does not exist.If the starter outside method 2900 judgement DISG does not exist, answering is that "No" and method 2900 proceed to 2950.Otherwise answer is "yes" and method 2900 proceeds to 2938.

2950, when DISG is in speed control mode, method 2900 at least in part closed transmission system disconnect-type clutch with rolling motor.In one example, the transmission system disconnect-type clutch is closed into the engine starting that hope is provided and rotates speed (for example, 250RPM) position.The engine starting of this hope rotates speed can be according to working conditions change and the same with DISG speed high in some instances.Closed transmission system disconnect-type clutch causes that drive train torque is delivered to electrical generator.Therefore, the electric current that offers DISG when the transmission system disconnect-type clutch engages can increase in order to keep DISG speed.By this way, due to the face of fluid torque converter constant airspeed, the torque of transmitting on turbine transformer can remain on constant level.At least in part after closure, method 2900 proceeds to 2952 at the transmission system disconnect-type clutch.

2952, method 2900 provides spark and fuel to engine cylinder.In one example, fuel offers generating cylinder by fuel oil atomizer.After providing spark and fuel to engine cylinder, method 2900 proceeds to 2954.

2954, whether method 2900 judgements burn in engine cylinder.In one example, method 2900 judges whether there is burning in engine cylinder when motor torque output increases.The engine speed increase can represent the burning in engine cylinder.In one example, the burning in engine cylinder can be determined by cylinder pressure sensor.If there is burning in method 2900 judgements in engine cylinder, answer is "yes" and method 2900 proceeds to 2956.Otherwise answer is that "No" and method 2900 proceed to 2954.

2956, method 2900 is opened the transmission system disconnect-type clutch and is regulated the DISG torque.Driving engine produce more torque with the speed that driving engine is accelerated to DISG before when the transmission system disconnect-type clutch does not engage, open the transmission system disconnect-type clutch and can reduce from the amount of the torque of the start the engine of DISG and transmission system transmission.Opening the transmission system disconnect-type clutch also reduces transmission system amount of torque with boost engine is provided.Therefore, can reduce the DISG torque DISG is remained on constant speed when the transmission system disconnect-type clutch is released.Rotate in the example of DISG the amount that can regulate the torque that is absorbed by DISG at vehicle energy.Method 2900 is with 2940 after opening the transmission system disconnect-type clutch.

2938, method 2900 is by the starter rolling motor outside DISG.In one example, starter has power output capacity and this starter lower than DISG and optionally engages the flywheel that is connected in engine crankshaft.This starter provides the engine starting velocity of rotation less than 250RPM.Offer electrical generator at 2938 sparks and fuel.Method 2900 proceeds to 2940 after driving engine begins to rotate.

2940, method 2900 accelerates to engine speed the speed of synchronizeing with DISG.Accelerated by regulating to fuel, spark and the cylinder air amount driving engine of generating cylinder.Method 2900 proceeds to 2942 after engine speed reaches DISG speed.

2942, method 2900 with engine speed remain on DISG speed and engine crankshaft provide be substantially zero torque (for example, ± 10N-m).In other words, regulate that motor torque just is high enough to overcome the driving engine loss and with DISG speed rolling motor.Substantially be that after zero, method 2900 proceeds to 2944. at motor torque

2944, the closed transmission system disconnect-type clutch of method 2900.There is no transmission of torque between transmission system and driving engine when the transmission system disconnect-type clutch is closed, therefore, is provided at the level and smooth transformation that does not move between driving engine and operation driving engine.Driving engine (for example, ± 25RPM) moves with the speed of DISG substantially when the transmission system disconnect-type clutch is closed.Method 2900 proceeds to 2946 after closed transmission system disconnect-type clutch.

2946, method 2900 reduces gradually the engine combustion torque and then stops fuel spraying, so driving engine does not rotate under its oneself power.Reduce gradually engine output torque by reducing cylinder air amount and cylinder fuel quantity.And, increase by regulating the loss of engine valve timing engine rotation.For example, the inlet valve of cylinder can be opened near the top dead point inspiration stroke time, and the exhaust valve that can open cylinder after the top dead point compression stroke between top dead point compression stroke and 45 crank angle degrees is to increase the engine rotation loss.The negative torque that the valve of other engine cylinders can be in a similar fashion produced by DISG by the operation regeneration period can reduce so that provide burning torque driving engine during the fuel shutoff that the changeover of braking torque is provided from driving engine.And, can regulate negative DISG machine torque to keep constant face of fluid torque converter speed when DISG is transformed into electric energy with kinetic energy.By this way, rolling motor can increase the load that imposes on transmission system, vehicle is provided the transmission system braking of hope.Method 2900 proceeds to 2948 after the engine combustion torque descends gradually.

In one example, the amount of the regenerative torque that DISG requires should be consistent with current available Jake brake amount of torque, as described 2926.The Jake brake torque can be estimated according to oil temperature, engine friction and the pumping under current pump impeller speed.In case after this system transition Jake brake, actual Jake brake can compare with the Jake brake of estimating and can revise estimating.By this way, when brake pedal is not operated, can slow down with same speed for Jake brake and regenerative abrupt deceleration vehicle.

2948, method 2900 maintenance DISG torques are substantially constant and TCC is turned back to C/LOOP slip control.For example, can regulate the TCC command signal so that the velocity contrast of the hope between face of fluid torque converter and transformer turbine to be provided.Method 2900 proceeds to 2906 after TCC being turned back to C/LOOP slip control.

In alternative example, engine rotation can begin and make driving engine can not get spark when engine rotation accelerates to DISG speed.The amount that transmission system disconnect-type clutch first closure is very little, and have higher slip level on the transmission system disconnect-type clutch.DISG can be from the electrical generator state-transition to the motor state, to disturb when boost engine reduces any drive train torque when transmission system provides additional negative torque.Additional pressure applies and is used on the transmission system disconnect-type clutch, to increase the negative torque that is offered transmission system by driving engine.When being in the speed state of a control, regulates DISG the DISG torque so that the transmission system braking level of hope to be provided.In one example, regulate the DISG electric current so that additional car retardation speed of wishing to be provided.

In another example, 2936-2956 can replace with following steps, namely (for example absorb in the DISG torque, rotating energy is transformed into electric energy) when reducing, when in the situation that when not having the chaufeur input car brakeing by friction braking (for example, wheel braking) to increase driving engine remain on zero rotating speed.Friction brake force can be braked proportional increase with minimizing DISG transmission system.Therefore, car brakeing is used automatically when the transmission system braking that is provided by DISG reduces.

By this way, the method for Figure 29 A-B provides the transmission system braking, therefore can fuel saving by kinetic energy being converted to electric energy.And the method can reduce the drive train torque interference by controlling DISG, TCC and other power train part.

With reference now to Figure 30,, the method that Figure 30 illustrates according to Figure 29 A-B provides the exemplary sequential of car brakeing by transmission system.The sequential of Figure 30 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 30 represents the graph of relation of transformer turbine speed and time.Y-axis represents that transformer turbine speed and transformer turbine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.

The second figure from the top of Figure 30 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.。

The 3rd figure from the top of Figure 30 represents that TCC (TCC) should be firmly and the graph of relation of time.Y-axis represents that TCC should exert oneself and TCC should be firmly increases along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 30 represents the graph of relation of the torque of transmission system disconnect-type clutch and time.Y-axis represents that the torque of transmission system disconnect-type clutch and the torque of transmission system disconnect-type clutch increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 30 represents DISG output torque and the graph of relation of time.Y-axis represents that DISG output torque and DISG export torque along the direction increase of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 6th figure from the top of Figure 30 represents the graph of relation of motor torque and time.Y-axis represents that motor torque and motor torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₆₂, engine stop, turbine trip speed raises, and DISG provides negative (for example, braking) torque to transmission system.The TCC power-transfer clutch is locked and the transmission system disconnect-type clutch is opened and transmitting torque not.

In time T ₆₃, the requirement that driving engine is restarted in response, TCC slides to be increased.Restart the requirement of driving engine based on the increase of driver requested torque (not shown).TCC power reduces when TCC slides increase.Engine speed remains unchanged, and the transmission system disconnect-type clutch stays open, and DISG charges a battery and negative drive train torque is provided.

In time T ₆₃And time T ₆₄Between, respond driver requested torque DISG is converted to speed control mode from the torque master mode.Then, DISG is adjusted to the speed of hope.Also regulate TCC so that constant slippage to be provided.

In time T ₆₄, the transmission system disconnect-type clutch is closed with start the engine at least in part.The DISG torque increases towards zero torque from negative torque, and then becomes positive torque, comes start the engine so that torque to be provided.The amount of DISG torque increases according to the amount of the torque that is used for starting rolling motor.Engine speed increases when engine rotation spark and fuel offer driving engine.

In time T ₆₄And time T ₆₅Between, engine output torque increases and burning torque boost engine.The burning transmission system disconnect-type clutch that DISG changes back in braking mode and responding engine is opened.Opening the transmission system disconnect-type clutch makes driving engine can accelerate to DISG speed and does not affect drive train torque.

In time T ₆₅, it is that disconnect-type clutch is closed that responding engine speed reaches the DISG speed transmission.Closed transmission system disconnect-type clutch can reduce the drive train torque interference after engine speed reaches DISG speed.By reducing the throttle gate opening or also reducing by regulating the torque of cylinder valve timing engine.

In time T ₆₆, driving engine is converted to the deceleration fuel cutoff pattern, does not give fuel and burned air-fuel mixture not in the rotation of this mode engine.When not giving fuel when engine rotation, it provides braking torque.By regulating the Jake brake torque with throttle gate or cylinder valve adjusting air-distributor pressure.DISG also is converted to the torque master mode.

Therefore, the method and system of Fig. 1-3 and Figure 29-30 provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; Surpass the rotation of threshold value start the engine with response battery charge will state.By this way, Jake brake can be taken over (take over) for the DISG braking when energy accumulating device charges greater than threshold value (for example, charging fully).The method also comprises and automatically stops driving engine and open transmission system disconnect-type clutch between driving engine and electrical motor when engine stop, and provide the Jake brake torque to wheel after being included in the start the engine rotation, and the transmission system disconnect-type clutch is closed with rolling motor at least in part.

In one example, the method also is included in when vehicle energy is transformed into electric energy with the speed control mode service meter.When also being included in engine speed less than the engine idle rotating speed, the method increases the slip of TCC during the start the engine rotation.The method comprises that also driving engine is via the transmission system rotation in conjunction with starter/driving engine.The method comprises that also the transmission system disconnect-type clutch is engaged driving engine to be connected in the starter/driving engine in conjunction with transmission system.The method also comprises with speed control mode service meter and the torque of regulating electric machine driveline speed is remained on substantially invariable torque.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via the first electrical motor when engine rotation stops; Response battery charge will state surpasses the rotation of threshold value start the engine, and wherein engine rotation is carried out via the second electrical motor.Before the method also is included in the order engine rotation, the second electrical motor is not attached to driving engine.When the method also is included in engine rotation and stops, the first electrical motor is not connected mechanically to driving engine.

When in one example, the method is included in engine speed and reaches threshold velocity, the second electrical motor and driving engine disconnect.The method also comprises closed transmission system disconnect-type clutch when engine speed equals the first electromotor velocity substantially.The method increases the TCC slip during also being included in closed transmission system disconnect-type clutch.The method comprises that also the power output capacity of the second electrical motor is lower than the power output capacity of the first electrical motor.

The method and system of Fig. 1-3 and Figure 29-30 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Starter outside this DISG comprises that starter does not engage the basic status of this driving engine; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, automatically to stop driving engine, transmission system braking to be provided, to rotate by the starter outside DISG the driving engine that stops during greater than threshold value when DISG provides the transmission system braking and at the state of charge of storage battery by DISG when engine rotation stops.

In some instances, this Vehicular system also comprises additional instruction, with when the transmission system disconnect-type clutch is closed at least in part, increases the slip of TCC.This Vehicular system also is included in engine starting closed transmission system disconnect-type clutch afterwards.This Vehicular system comprises that also DISG has the power output capacity greater than the starter outside this DISG.This Vehicular system comprises that also TCC and additional instruction are used for increasing the slip of TCC during closed transmission system disconnect-type clutch.This Vehicular system also comprises when providing transmission system when braking DISG that electric charge to energy accumulating device is provided.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; Regulate the torque of this electrical motor with the situation of responding engine.The method comprises that the situation of this driving engine is oil temperature.The method comprises that the situation of this driving engine is the valve timing of driving engine.The method comprises that the situation of this driving engine is engine coolant temperature.The method comprises that the situation of this driving engine is the Jake brake torque of estimating.The method also comprises by the transmission system braking is provided with the regeneration mode service meter.The method comprises that the torque of electrical motor when engine condition changes changes.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; With the torque according to this electrical motor of Jake brake torque adjustment.The method comprises according to engine motor oil temperature estimated engine braking torque.The method comprises this Jake brake torque of velocity estimation according to this electrical motor.The method comprises that the torque of this electrical motor is negative torque.The method comprises that this electrical motor is in generator mode.The method comprises that the braking torque of this driving engine is the deceleration fuel cutoff braking torque.The method comprises that the actuating torque of this driving engine of driving engine is based on the position of throttle gate.

The method and system of Fig. 1-3 and Figure 29-30 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; The starter that comprises outside this DISG does not engage the starter of the basic status of this driving engine; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, with automatically stop driving engine, when engine rotation stops by DISG transmission system braking is provided, when the transmission system braking is provided with the torque adjustment of DISG to the Jake brake torque.

In some instances, this Vehicular system comprises that also additional instruction is with the speed of boost engine to DISG.This Vehicular system comprises that also additional instruction reduces by the negative torque that driving engine offers transmission system the negative torque that is provided by DISG with response.This Vehicular system comprises that also additional instruction is used for by the starter start the engine outside this DISG.This Vehicular system comprises that also additional instruction is used for stopping the burning of engine cylinder after start the engine.This Vehicular system comprises that also additional instruction is used for regulating Jake brake after the burning that stops engine cylinder.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; With provide at electrical motor transmission system when braking by a kind of device of electrical motor automatic activation so that the electric charge that provides via electrical motor to be provided.The method comprises that the state of charge that responds electrical storage device surpasses threshold level and activates this device.

In one example, the method comprises that this device is heating arrangement.The method comprises that this heating arrangement is the vehicle window defrosting device.The method comprises that this heating arrangement is the tapping equipment temperature booster.The method comprises that this device is pump.The method comprises that this pump is fuel-injection pump.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; With provide transmission system when braking to increase the electric current that offers a kind of device at electrical motor.The method comprises that this electric current increases according to the electric charge speed by this electrical motor output.The method is included in electrical motor provides transmission system this electrical motor of when braking to provide charging for energy accumulating device.The method comprises that this electric current increases according to the state of charge of energy accumulating device.The method comprises that this device is pump.The method comprises that this device is temperature booster.The method comprises that this device is lamp.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; A kind of device of automatic activation is so that the electric charge that provides via this electrical motor to be provided when this electrical motor provides the transmission system braking; The state of charge rolling motor of response energy accumulating device; And the driving engine that stops operating when the state of charge of energy accumulating device is less than threshold level.

In one example, the method comprises that this device that the electric charge that is provided by this motor is provided is to have the device that chaufeur can not be seen the running state that maybe can not hear.The method comprises that this device that the electric charge that is provided by motor is provided is temperature booster.The method comprises that this temperature booster provides heat to surrounding air.The method comprises that this temperature booster provides heat to exhaust system.The method also comprises and stops providing transmission system braking via electrical motor when engine rotation.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; Response provides the requirement of transmission system braking to move this electrical motor with speed control mode via driving engine; Start the engine; Driving engine is accelerated to the speed of this electrical motor; And responding engine speed equals the transmission system disconnect-type clutch that the electromotor velocity closure is opened substantially.The method comprises via the starter start the engine outside this electrical motor.

In some instances, the method comprises by driving engine provides the state of charge of the requirement of transmission system braking based on energy accumulating device.The method comprises that providing the requirement of transmission system braking by driving engine is that the state of charge of response energy accumulating device is greater than the threshold quantity of electric charge.The method comprises the slip of the closed transmission system disconnect-type clutch adjusting of response TCC.The method comprises that the slip of this TCC increases.The method comprises that electrical motor provides torque with start the engine.

The method and system of Fig. 1-3 and Figure 29-30 also provides controls the transmission system braking, comprising: provide the transmission system braking via electrical motor when engine rotation stops; Start and rotary engine; To engine spray fuel; Driving engine is accelerated to the speed of this electrical motor; And stop to engine spray fuel, and when being less than the threshold quantity of electric current, electrical motor output provides the transmission system braking by driving engine.The method comprises that also responding engine speed equals the closed transmission system disconnect-type clutch of electromotor velocity substantially.

In one example, the method is moved this electrical motor with speed control mode during also being included in closed transmission system disconnect-type clutch.The method also is included in the slip that increases TCC during closed transmission system disconnect-type clutch.The method comprises that also the state of charge that responds energy accumulating device surpasses the threshold value electric charge and start the engine.The method also is included in and stops reducing motor torque to the responding engine braking torque increase afterwards of engine spray fuel.The method comprises via the starter start the engine outside this electrical motor.

The method and system of Fig. 1-3 and Figure 29-30 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; The starter that comprises outside this DISG does not engage the starter of the basic status of this driving engine; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, with automatically stop driving engine, when engine rotation stops by DISG the state of charge start the engine of transmission system braking, response energy accumulating device is provided, burning in stopping driving engine when the engine rotation and provide the transmission system braking by driving engine.By this way, this system can be converted to the electric powertrain braking transmission system braking of machinery.

In some instances, this Vehicular system also comprises additional instruction, driving engine is accelerated to the speed of DISG.This Vehicular system also comprises additional instruction, closed this transmission system disconnect-type clutch when engine speed equals the speed of DISG substantially.This Vehicular system also comprises additional instruction, is used for via the starter start the engine outside this DISG.This Vehicular system also comprises additional instruction, is used for stopping the burning of engine cylinder after start the engine.This Vehicular system also comprises additional instruction, is used for regulating Jake brake after the burning that stops engine cylinder.

With reference now to Figure 31,, Figure 31 is illustrated in the diagram of circuit of the method that is used for controlling driveline lash (lash) during the car brakeing that provides via vehicle transmission system.The method of Figure 31 can be stored in as executable instruction in non-transient memory device in the system of Fig. 1-3.

3102, method 3100 judges whether driving engine shuts down and whether DISG is in regeneration mode (for example, DISG is transformed into electric energy with the kinetic energy of vehicle).In one example, when being zero, engine speed can judge the engine stop rotation.When electric current flows out and DISG can determine that DISG is in regeneration mode when providing negative torque for transmission system from DISG.If method 3100 judgement driving engines do not rotate and DISG is in regeneration mode, answer is "yes" and method 3100 proceeds to 3104.Otherwise method 3100 proceeds to and withdraws from.

3104, method 3100 transforms to change-speed box and allows DISG speed to rest on gear lower than basic DISG speed.This basic DISG speed can provide the speed of specified torque (for example, maximum DISG torque) lower than this DISG.If DISG speed is greater than basic DISG speed, DISG torque and DISG speed are inversely proportional to.Therefore, if DISG speed greater than basic DISG speed, change-speed box can upgrade, and makes DISG speed less than the DISG base speed.If car speed makes the DISG speed can not be by change-speed box being upgraded be reduced to the speed less than the DISG base speed, change-speed box can move to and allow DISG with near the gear of the speed rotation of DISG base speed.In addition, in some instances, can be converted to speed control mode at 3104, DISG, rather than wait for the increase of driver requested torque.Change-speed box shifted gears so that DISG approaches or less than the DISG base speed after, method 3100 proceeds to 3106.

3106, it is torque that method 3100 judges whether to require to increase positive drive.The increase positive drive is the driver requested torque that the requirement of torque can respond increase.Driver requested torque can be determined from accelerator pedal or controller.If it is the requirement (for example, accelerating vehicle) of torque that there is the increase positive drive in method 3100 judgements, answer is "yes" and method 3100 proceeds to 3108.Otherwise method 3100 proceeds to 3104.

3108, method 3100 is regulated TCC (TCC) capacity.In one example, the turbine transformer output torque that is adjusted to hope of TCC capacity subtracts in the situation that open this turbine transformer of TCC fully with the amount of torque that produces.In the situation that open this turbine transformer of TCC fully, the amount of torque that produces can be determined from face of fluid torque converter speed and transformer turbine speed.Specifically, face of fluid torque converter speed and function or the table of transformer turbine speed index stores in memory device, this function or table are according to face of fluid torque converter speed and transformer turbine speed output turbine transformer torque output.In case after the TCC capacity is determined, it is exported to this TCC.After the TCC capacity was determined, method 3100 proceeded to 3110.

Be converted to speed control mode at 3110, DISG from the torque master mode.In speed control mode, regulate the DISG torque so that the DISG speed of hope to be provided.The DISG speed of this hope can be constant or it can be along with vehicle working condition changes.Method 3100 proceeds to 3112. after DISG is converted to speed control mode

3112, method 3100 is regulated DISG speed, to regulate turbine transformer output torque.Specifically, by regulate DISG speed with the turbine transformer torque from negative torque adjustment to positive torque.In one example, the turbine transformer of hope output distribution of torque figure be stored in memory device and accelerate from transmission system braking (for example, negative drive train torque) to transmission system (for example, positive drive is torque) indexed between tour.The turbine transformer output distribution of torque figure of this hope is according to the torque of driver requested variation with when Front Derailleur shelves regulation turbine transformer output torque.The turbine transformer output torque of this hope and turbine trip speed are input to function or the table of output face of fluid torque converter speed.This table or function statement turbine transformer transfer function.DISG is commanded to face of fluid torque converter speed, the turbine transformer output torque that makes turbine transformer output wish.After DISG completes the turbine transformer output distribution graph of hope, regulate this DISG torque so that the driver requested torque of hope to be provided.By this way, DISG speed is controlled so as to the function of the turbine transformer output of transformer turbine speed and hope.That is to say, actual turbine transformer output torque is controlled so as to the function of face of fluid torque converter speed and turbine trip speed.

In alternative example, by changing face of fluid torque converter speed with respect to transformer turbine speed, DISG speed is regulated turbine transformer output torque.Specifically, by increasing DISG speed, DISG increases turbine transformer output torque, from negative torque to positive torque.Turbine transformer output torque increases fast to reduce the gap between change-speed box and Transmission gears.Turbine transformer output torque reduces when the gap between gear cluster reduces, so wheel tooth can reduce the impact of wheel tooth.

For example, by according to the wheel tooth of estimating, wheel tooth speed being regulated turbine transformer output torque, come the adjusting gear gap to pass wheel tooth to wheel tooth speed.In one example, wheel tooth speed to wheel tooth speed be transformer turbine speed and or change-speed box output speed or wheel velocity between poor.Velocity contrast between this turbine trip speed and change-speed box output speed or wheel velocity is smaller, until the torsion on the transmission system axle is alleviated.Positive turbine transformer output torque increases DISG speed by the little velocity contrast between response transformer turbine and change-speed box output speed or wheel velocity to be increased.When the difference between square device turbine and change-speed box output speed or wheel velocity was very little, DISG output speed increase fast made wheel tooth separately.Become from contact when wheel tooth that this velocity contrast will increase when not contacting.DISG speed reduces when poor the increasing between square device turbine and change-speed box output speed or wheel velocity, makes the impulsive force between gear cluster to reduce.

In one example, in case face of fluid torque converter speed deducts after transmission output shaft speed or wheel velocity surpass threshold level, DISG speed reduces tooth to the impulsive force of tooth.Difference between transformer turbine and change-speed box output speed or wheel velocity less than threshold velocity after DISG speed increase so that be converted to from negative drive train torque positive drive be torque after wheel tooth keep in touch.Method 3100 proceeds to 3114 after the DISG gap adjustment begins.

3114, method 3100 judges whether gear clearance is reduced to less than threshold quantity.In one example, when positive torque has been applied to difference between transmission system and transformer turbine speed and change-speed box output speed or wheel velocity less than threshold level, can determine that gear clearance is less than threshold quantity.If method 3100 judgement gear clearances are reduced to less than threshold quantity, answer is "yes" and method 3100 proceeds to 3116.Otherwise method 3100 proceeds to 3112.

3116, method 3100 increases DISG output torque.Control moldedly because DISG is in speed, this DISG output torque can response pass increases to the drive train torque of driving engine and the driveline speed that reduces.In other words, when DISG speed reduced from the DISG speed of hope, the positive torque of DISG can increase.In another example, when DISG is in speed control mode, by increasing the DISG torque according to transmission system disconnect-type clutch torque (for example, being delivered to the amount of torque of driving engine from DISG via DISG), can increase DISG torque output.The transmission system disconnect-type clutch torque of wishing can be stored in memory device in the mode of function or table, and closed this torque increase of response disconnect-type clutch is applied to DISG during engine restart.Method 3100 proceeds to 3118 after adjusting DISG illustrates the torque start the engine.

3118, method 3100 restarts driving engine.This driving engine is supplied with spark and fuel restarts by closed transmission system disconnect-type clutch at least in part and to driving engine.In some instances, closed transmission system disconnect-type clutch also increases DISG output torque and can occur simultaneously, therefore can reduce any drive train torque and disturb.Method 3100 proceeds to 3120 after engine starting begins.

3120, method 3100 is eliminated the motor torque that can offer transmission system and is disturbed.For example, during engine starting, driving engine can consume drive train torque in order to accelerate between the starting period.Motor torque disturbs and can change in response to the driveline speed of DISG to eliminate.Because DISG is in speed control mode and follows the speed of hope, when consuming drive train torque and accelerate this transmission system, driving engine can increase the DISG torque.In addition, if starting the rear engine acceleration and torque is offered transmission system, the DISG torque can reduce, and makes by DISG and engine application (for example, ± 30Nm) substantially to remain unchanged in the net torque of transmission system.By this way, can control in the closed loop mode by regulating DISG torque driveline speed.

In another example, drive train torque disturbs and can eliminate by open loop DISG torque adjustment.For example, when the transmission system disconnect-type clutch begins closure, when being in speed control mode, DISG can increase the DISG torque.Specifically, by being added in the DISG torque command, the torque of transmission system disconnect-type clutch can regulate the DISG torque.This DISG torque command responds this DISG speed and is further regulated.Therefore, if the torque of transmission system disconnect-type clutch is too low or too high estimation, the DISG speed control loop will be eliminated the transmission system disconnect-type clutch torque error that adds to the DISG torque.Disturb and to rotate beginning until driving engine reaches between DISG speed and the complete closure of transmission system disconnect-type clutch eliminates at engine starting at the drive train torque eliminated during engine starting.After transmission system during engine starting disturbs and is eliminated, method 3100 proceeds to 3122.

3122, method 3100 provides the torque of hope to transmission system.The torque of this hope can be provided separately by DISG, is provided separately by driving engine, or is provided by driving engine and DISG.In one example, DISG torque and motor torque partly provide as the driver requested torque of determining from accelerator pedal.For example, if driver requested torque is determined to be in the 100N-m of face of fluid torque converter, driving engine can provide driver requested torque 80% or 80N-m, and DISG provides 20% or 20N-m, so 100N-m is provided for face of fluid torque converter.Method 3100 proceeds to and withdraws from after the torque of hope offers transmission system.

Should be pointed out that 3116-3120 can occur simultaneously with 3108-3114 in some instances, make drive train torque more respond driver requested torque.Change-speed box is changed to allowed DISG can increase DISG lower than the gear of basic DISG speed operation to have and restart the motor torque capacity and alleviate simultaneously the possibility that the gear due to the Transmission gears gap impacts.

With reference now to Figure 32,, Figure 32 illustrates the exemplary sequential of impacting for the gear clearance that reduces transmission system according to the method for Figure 31.The sequential of Figure 32 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 32 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The second figure from the top of Figure 32 represents driver requested torque and the graph of relation of time.Y-axis represents that driver requested torque and driver requested torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd figure from the top of Figure 32 represents the graph of relation of engine condition and time.Y-axis represent engine condition and when the engine condition trace is in higher level driving engine rotate.That driving engine stops the rotation when the engine condition trace is in lower level.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 32 represents TCC (TCC) dutycycle and the graph of relation of time.Y-axis represents that TCC dutycycle and TCC dutycycle increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The TCC closing force increases when the TCC dutycycle increases.TCC can transmit less torque between DISG and change-speed box when the TCC dutycycle increases, because turbine transformer torque increase can reduce.As TCC trace TCC locked (for example face of fluid torque converter speed equals transformer turbine speed) during near the Y-axis arrow.

The 5th figure from the top of Figure 32 represents the graph of relation of change-speed box shelves and time.Y-axis represents that change-speed box shelves and concrete change-speed box shelves increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 6th figure from the top of Figure 32 represents the graph of relation of DISG speed and time.Y-axis represents that DISG speed and DISG speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The horizon 3202 basic DISG speed of expression.

In time T ₆₈, car speed is in the level that raises, and driver requested torque is like this equally.Driving engine operation and burned air-fuel mixture.TCC is locked, as by the TCC dutycycle near as shown in the Y-axis mark.Change-speed box is in the 5th grade and DISG speed is in medium level and higher than DISG base speed 3202.

In time T ₆₉, for example, the driver requested torque of response driver's accelerator-off reduces to low value.Car speed, driver requested torque, engine condition, TCC dutycycle, change-speed box shelves and DISG speed remain on and are similar in time T ₆₈Level.But DISG is converted to the negative torque of generation and produces electric energy from producing positive torque and consuming electric energy.The fuel of driving engine and spark are provided also stop, making engine retard but be rotated further and do not receive fuel.

In time T ₆₉And time T ₇₀Between, car speed reduces DISG speed and also reduces.Driving engine continues rotation, as stops at as shown in the engine condition of higher level, and the TCC dutycycle also remains on the blocked higher level of TCC.Change-speed box remains on the 5th grade and driver requested torque remains on lower level.

In time T ₇₀, the low driver requested torque engine rotation of response is stopped, as is converted to as shown in the engine condition sign of reduced levels.Transmission system disconnect-type clutch (not shown) is opened and DISG response stops driving engine and is converted to speed control mode.DISG speed and car speed continue to reduce, and change-speed box remains on the 5th grade.

In time T ₇₀And time T ₇₁Between, car speed and DISG speed continue to reduce.In this example, transmission downshifts when making DISG speed can remain under basic DISG speed when lowering category.DISG speed is commanded to the speed based on the shelves of driver requested torque, car speed and selection.For example change-speed box remains on the 5th grade, and DISG speed is reduced to less than basic DISG speed.If shifting of transmission continues to be reduced to threshold velocity to fourth speed DISG speed, will be lower than the DISG base speed at this threshold velocity DISG.Transmission downshifts is to fourth speed during less than threshold velocity when DISG speed, and DISG speed is increased to the speed based on the DISG speed before gear shift and new gear ratio.

In some instances, reduce speed now or during driver requested torque reduced, current DISG speed can be greater than the DISG base speed at vehicle.In these cases, in the beginning of car retardation or respond driver requested torque and reduce change-speed box and can upgrade, make DISG speed be reduced to the base speed less than DISG.By reducing DISG speed to less than the DISG base speed, can provide torque to restart driving engine from DISG, to reduce the wheel tooth that causes due to gear clearance to the impact of wheel tooth.The change-speed box shelves can lower category when allowing DISG speed to keep less than the DISG base speed.

The TCC dutycycle also can respond transmission system disconnect-type clutch state (not shown), car speed and driver requested torque and reduce.TCC should exert oneself and the TCC dutycycle can be conditioned, and may any torque by transmission system disturb owing to opening the transmission system disconnect-type clutch to reduce.Driving engine keeps stopping, and is in as shown in lower level as engine condition.It is low that driver requested torque also keeps.

Also should be mentioned that when transmission system from producing positive torque when providing negative torque or braking torque to change, the Transmission gears tooth may be from the front of torque from wheel tooth is delivered to the back of wheel tooth and changes.If change not processedly in the way you want, when transforming back into, transmission system wheel tooth may occur to the impact of wheel tooth when producing positive torque.

In time T ₇₁, the driver requested torque of response chaufeur or controller input increases.DISG speed increases so that the tooth separately in transmission system.DISG is accelerated to the velocity contrast of wheel tooth according to wheel tooth.Specifically, DISG accelerates with higher speed when wheel tooth has identical speed, so that minute tooth punching.

In time T ₇₂, DISG accelerate to reduce and when the poor increase between wheel tooth DISG can slow down.DISG is slowed down can be by reducing the impulsive force of speed minimizing wheel tooth to wheel tooth between wheel tooth.In time T ₇₂After the very short time, after has eliminated in the space between wheel tooth or gap, can increase DISG and accelerate.Accelerate DISG until the wheel tooth contact can reduce drive train torque and disturb by wait, and provide negative to positive torque transition more stably.In time T ₇₁And time T ₇₃Between TCC slide and should exert oneself also to be conditioned or to adjust to reduce torque interference in transmission system.Begin accelerating vehicle and DISG is converted to the torque master mode from the torque of DISG.

In time T ₇₃, spark and fuel offer driving engine and the transmission system disconnect-type clutch is closed so that start the engine.Any torque that TCC dutycycle and should firmly being conditioned reduces in the transmission system that is caused by closed transmission system disconnect-type clutch during engine starting is disturbed.TCC is locked after engine starting, in order to improve drive line efficiency.And change-speed box begins by gear shift with accelerating vehicle.

By this way, when producing Mode change from braking mode to torque, transmission system can reduce gap and impact between the Transmission gears tooth.By regulating by this way DISG speed and torque, can reduce the obvious drive train torque of chaufeur is disturbed.

Therefore, the method and system of Fig. 1-3 and Figure 31-32 provides the control driveline lash, comprising: respond driver requested torque and reduce change-speed box is changed to the gear that the electrical motor that allows to be connected in this change-speed box moves under than the low speed of the base speed of this electrical motor; With reduce wheel tooth to the impact of wheel tooth by move this electrical motor with speed control mode during drive train torque is from negative torque to positive torque conversion.The method also is included in drive train torque and reduces TCC during from negative torque to positive torque conversion and should exert oneself.The method comprises that also the driver requested torque of response reduces to stop the rotation of driving engine.

In one example, the method comprises that also the driver requested torque of response reduces to open the transmission system disconnect-type clutch.The method also is included in drive train torque and responds the speed that the velocity contrast the first wheel tooth and the second wheel tooth is regulated this electrical motor from bearing torque during positive torque conversion.The method comprises that also the response car speed makes transmission downshifts.The method also is included in drive train torque and tightly moved this electrical motor with the torque master mode from negative torque before moving this electrical motor with speed control mode during positive torque conversion.

The method and system of Fig. 1-3 and Figure 31-32 provides the control driveline lash, comprising: reduce wheel tooth to the impact of wheel tooth by move this electrical motor with speed control mode during drive train torque is from negative torque to positive torque conversion; With separately this first wheel tooth and the second wheel tooth accelerate this electrical motor during drive train torque is from negative torque to positive torque conversion.The method also comprises the increase of the velocity contrast between response this first wheel tooth and the second wheel tooth this electrical motor that slows down.What the method also was included in the velocity contrast that responds after this electrical motor that slows down between this first wheel tooth and the second wheel tooth reduces to accelerate this electrical motor.

In one example, the method comprises that the transformation from negative torque to positive torque is the increase of the driver requested torque of response.The method also comprises reducing of the driver requested torque of response, before reducing the impact of wheel tooth to wheel tooth, opens the transmission system disconnect-type clutch that is connected mechanically to this electrical motor.The method responds reducing of driver requested torque before also being included in and reducing the impact of wheel tooth to wheel tooth, and reducing TCC should exert oneself.The method comprises that also this electromotor velocity controls as the function of the velocity contrast between the first wheel tooth and the second wheel tooth.

The method and system of Fig. 1-3 and Figure 31-32 provides a kind of vehicle to pass system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that comprises the first side of the second side that is connected mechanically to this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, automatically to stop driving engine, by reduce wheel tooth with speed control mode operation DISG, impact and the start the engine rotation of wheel tooth reduced wheel tooth simultaneously to the impact of wheel tooth during drive train torque is from negative torque to positive torque conversion.

In one example, this Vehicular system comprises by closed this transmission system disconnect-type clutch start the engine rotation.This Vehicular system also comprises additional instruction, should exert oneself to regulate TCC when reducing wheel tooth to the impact of wheel tooth.This Vehicular system also comprises additional instruction, reduces to open this transmission system disconnect-type clutch to respond driver requested torque.This Vehicular system also comprises additional instruction, with response chaufeur torque-demand at least in part closed this transmission system disconnect-type clutch with start the engine.This Vehicular system also comprises additional instruction, arrives to rotate the gear of DISG less than the speed of DISG base speed to make shifting of transmission during car retardation.

With reference now to Figure 33,, Figure 33 illustrates the diagram of circuit for the method that is tied to friction braking transformation car brakeing from transmission.The method of Figure 33 can be stored in as executable instruction in non-transient memory device in the system of Fig. 1-3.

With reference now to 3302,, method 3300 is estimated vehicle mass and road grade.In one example, road grade can be estimated or measure by gradient meter.Vehicle mass can describedly be determined as 904 of method 900.Method 330 proceeds to 3304 after definite vehicle mass and road grade.

3304, method 3300 judges whether vehicle is slowing down or whether chaufeur has reduced driver requested torque.The driver requested torque that reduces can be definite from unclamping of accelerator pedal.If the driver requested torque that method 3300 judgement car retardations or existence reduce, answer is "yes" and method 3300 proceeds to 3306.That "No" and method 3300 proceed to and withdraw from otherwise answer.

3306, method 3300 judges whether the state of charge (SOC) of energy accumulating device is less than the threshold quantity of charging.In one example, SOC can determine by measuring battery tension.If energy accumulating device SOC is less than the threshold quantity of charging, answer is "yes" and method 3300 proceeds to 3308.Otherwise answering is that "No" and method 3300 proceed to 3312.

3308, method 3300 is stopped paying out the motivation rotation and is opened the transmission system disconnect-type clutch.Stop driving engine by stopping supply engine fuel and spark.Method 3300 proceeds to 3310 after stopping engine rotation and opening the transmission system disconnect-type clutch.

3310, method 3300 is moved DISG and charges to energy accumulating device with generator mode.DISG provides negative torque to vehicle transmission system in sending out generator mode.In one example, the DISG amount that offers the negative torque of transmission system can respond car speed and driver requested torque is regulated.In another example, the amount that DISG offers the negative torque of this DISG can be adjusted to the braking torque of the driving engine of estimating under current working, as described herein.In the speed of 3310 car retardations can be stored in memory device.Method 3300 proceeds to 3304 after DISG begins to the energy accumulating device charging.

3312, method 3300 begins to reduce negative DISG torque.And in some instances, the transmission system disconnect-type clutch can closure make driving engine that the transmission system braking can be provided.In one example, response reduces towards zero torque by the negative DISG torque of amount of torque that the transmission system disconnect-type clutch passes to driving engine.The minimizing of the negative torque of DISG is based on the minimizing of charging current.Method 3300 proceeds to 3314 after the DISG torque begins to reduce.

3314, method 3300 is by current road grade and the torque of car retardation estimated wheel.This wheel torque can be determined according to following equation:

F＝m·a

\frac{T_wh}{R_rr} = F

Make

T_wh＝m·a·R_rr+R_rr·g·m·sin(Θ)

Wherein F equals the power of acceleration/deceleration vehicle, and m is vehicle mass, the theoretical running radius of tire of R_rr wheel, and a represents vehicle acceleration, g is acceleration due to gravity, and Θ is the road angle.Method 3300 proceeds to 3318 after definite wheel torque.

3316, method 3300 response wheel torques and negative DISG torque reduce (for example, towards zero DISG torque) regulating brake supply oil pressure.Specifically, raise the gradually simultaneously oil pressure that offers the vehicle friction braking and reduce the negative torque of DISG of method 3300.The vehicle friction brake force increases with the speed that the negative torque of balance DISG reduces, so that the speed of the car retardation that is equal to be provided.In one example, the wheel braking torque that the open loop brake piping oil pressure response relevant with drag friction power wished is from table or index functions, and this table or function comprise the brake piping oil pressure of rule of thumb determining.The wheel braking torque of this hope that is provided by friction braking is to multiply by current transmission gear ratio and axle ratio obtains by the reduction that 3314 wheel torque deducts the DISG torque.The brake piping oil pressure is elevated to the pressure that the torque of the wheel braking of hope is provided gradually.By this way, can realize according to the vehicle torque the closed loop control of wheel braking.In addition, in some instances, the transmission system disconnect-type clutch can be closed and the minimizing of response DISG torque and other operating mode driving engines in the situation that there is no the fuel rotation so that the transmission system braking torque to be provided.The brake piping oil pressure raise gradually and the negative torque of DISG reduce gradually after method 3300 proceed to 3318.

In other examples, the brake piping oil pressure can be estimated to increase by the open loop of brake application power, and brake application power can also be regulated according to the difference between the car speed of this hope and actual car speed.By this way, car speed is poor can be for the closed loop parameter of regulating friction brake force.

3318, method 3300 judges whether the brake request from chaufeur.In one example, can be from the location positioning of brake pedal from the brake request of chaufeur.If there is the brake request from chaufeur in method 3300 judgements, answer is "yes" and method 3300 proceeds to 3320.Otherwise answering is that "No" and method 3300 proceed to 3322.

3320, the brake piping oil pressure responds driver requested input and increases.In one example, to the proportional increase of displacement of brake piping oil pressure and the brake pedal of friction braking.Method 3300 proceeds to 3322 after response chaufeur brake command increases the brake piping oil pressure.

3322, method 3300 judges whether vehicle stops.Vehicle can be judged as and stop when car speed is zero.Stop if vehicle is judged as, answer is "yes" and method 3100 proceeds to and withdraws from.Do not stop if vehicle is not judged as, answering is that "No" and method 3300 turn back to 3312.

With reference now to Figure 34,, Figure 34 illustrates for the method according to Figure 33 and is tied to from transmission the exemplary sequential that friction braking changes car brakeing.The sequential of Figure 34 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 34 represents the graph of relation of car speed and time.Y-axis represents that car speed and car speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The second figure from the top of Figure 34 represents the graph of relation of transmission system disconnect-type clutch state and time.Y-axis represent transmission system disconnect-type clutch state and when transmission system disconnect-type clutch state trace transmission system disconnect-type clutch when the Y-axis arrow be closed.The transmission system disconnect-type clutch is opened when the close X-axis of transmission system disconnect-type clutch state trace.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd figure from the top of Figure 34 represents the graph of relation of engine condition and time.Y-axis represents engine condition, and when the engine condition trace during in higher level driving engine in rotation.When the engine condition trace during in lower level driving engine stop the rotation.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 34 represents the graph of relation of battery charge will state (SOC) and time.Y-axis represents that storage battery SOC and SOC increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 34 represents the graph of relation of DISG torque and time.Y-axis represents that DISG torque and DISG torque can be plus or minus.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 6th figure from the top of Figure 34 represents the brake-press lead oil pressure of friction braking and the graph of relation of time.Y-axis represents that brake-press lead oil pressure and brake-press lead oil pressure increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 7th figure from the top of Figure 34 represents the graph of relation of wheel torque and time.Y-axis represents that wheel torque and wheel torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₇₄, car speed raises, and driving engine is in operation, and the transmission system disconnect-type clutch is closed.Storage battery SOC is lower and along with DISG provides positive torque reducing to transmission system.Be in as the brake-press lead oil pressure and do not use friction braking shown in low-level.Wheel torque is positive.

In time T ₇₅, the driver's accelerator-off (not shown).After short time, response is from the low driver requested torque of accelerator pedal, and the DISG torque is from positive torque conversion to negative torque.By being converted to negative torque, DISG provides braking torque to make vehicle slack-off.And DISG produces electric charge and electric charge is supplied accumulators, as shown in the storage battery SOC that increases.Friction braking pipeline oil pressure remains on and represents the low-level of time friction braking not.Response DISG is converted to negative torque is provided, and wheel torque is from positive torque conversion to negative torque.In addition, the transmission system disconnect-type clutch is opened and engine rotation stops.Engine stop is opened with fuel saving and transmission system disconnect-type clutch and is made DISG that whole transmission system brakings can be provided.The amount of transmission system that DISG provides braking can rule of thumb be determined and be stored in memory device as the function of car speed and driver requested torque.

In this example, unclamping after accelerator pedal not brake application pedal of chaufeur.But, in some instances, chaufeur brake application after unclamping accelerator pedal.In such example, the brake command of response chaufeur can increase brake-press lead pressure.

In time T ₇₅With in time T ₇₆Between, the negative torque of DISG increases, until produce the transmission system braking torque of wishing.Negative vehicle torque also increases when the transmission system braking torque increases.Chaufeur is brake application pedal and storage battery SOC increase not.The transmission system disconnect-type clutch stays open and driving engine rests on halted state.

In time T ₇₆, response DISG offers battery charge SOC to storage battery and reaches threshold quantity (for example, charging fully).The negative torque of DISG reduces and offers the quantity of electric charge minimizing of storage battery.The brake-press lead oil pressure also increases and makes and can keep wheel torque by friction braking.The brake-press lead oil pressure increases according to the minimizing of the negative torque of DISG.In one example, friction brake force reduces to regulate according to wheel torque and DISG torque.In other example, slack-off in order to turn a wheel at some, applied friction brake force can be regulated according to the difference between the car speed of hope and actual car speed.Car speed continues to reduce and the transmission system disconnect-type clutch stays open.And driving engine keeps stopping.

In time T ₇₇, the negative torque of response DISG is reduced and responds operating mode, and the transmission system disconnect-type clutch is closed and in the situation that do not have fuel to spray engine rotation.For example, driving engine can respond reducing of DISG torque and changes the later time and rotate from the DISG torque.Driving engine does not have fuel ground rotation so that braking torque to be provided.And by activating or inactive valve and/or can regulate the Jake brake torque with throttle gate and/or valve adjusting air-distributor pressure.Response is reduced by the transmission system braking torque brake-press lead oil pressure that driving engine provides.Specifically, the such amount of brake-press lead oil pressure minimizing, the torque that is provided by friction braking is provided this amount, even if therefore the transmission system braking increases for the driving engine of fuel by rotation, also provides the wheel braking of equivalence.

In time T ₇₈, car speed is near zero velocity.Open and engine rotation stop being reduced to by threshold value car speed transmission system disconnect-type clutch for the response car speed.Because DISG does not provide positive torque and not battery consumption charging to transmission system, storage battery SOC remains on higher level.The brake-press lead oil pressure increases when Jake brake stops.The increase of brake-press lead oil pressure will increase the power that wheel is applied by friction braking.

In time T ₇₉, car speed reaches zero velocity, and wheel torque and brake-press lead oil pressure are reduced to zero.In one example, when reaching zero, car speed can keep the brake-press lead oil pressure to make stoppage of vehicle in zero velocity until chaufeur increases driver requested torque by accelerator pedal.Driving engine keeps stopping and the transmission system disconnect-type clutch remains on open mode.

By this way, when reducing, transmission system braking response storage battery SOC can use friction braking so that vehicle is slack-off.And engine rotation can stop and starting with further control transmission system braking.Can use friction torque according to the difference between the speed of a motor vehicle of the wheel torque of estimating and/or hope and the actual speed of a motor vehicle.

Therefore, the method and system of Fig. 1-3 and Figure 33-34 provides car brakeing, comprising: the transmission system braking torque is provided and vehicle is not used the friction braking torque to vehicle; Reduce the transmission system braking torque with response energy accumulating device state of charge when increasing the torque of vehicle friction braking, the amount that this friction braking torque increases is identical with the amount that the transmission system braking torque is reduced.By this way, vehicle can be to be converted to friction braking to the less obvious mode of chaufeur from the transmission system braking.

In one example, the method comprises that the speed that the transmission system braking torque is reduced equals the speed that the friction braking torque increases.The driving engine that the method is included in vehicle when providing the transmission system braking torque to vehicle does not rotate.The method is included in when the transmission system braking torque is provided the transmission system disconnect-type clutch and opens.The method comprises that response provides the transmission system braking torque less than the driver requested torque of threshold value torque.The method comprises that the driver requested torque of response further increases the friction braking torque.

The method and system of Fig. 1-3 and Figure 33-34 also provides car brakeing, comprising: the transmission system braking torque is provided and vehicle is not used the friction braking torque to vehicle; The estimated wheel torque; Reduce the transmission system braking torque with the wheel torque energy accumulating device state of charge of this estimation of response when increasing the friction braking torque of vehicle.The method comprises that the wheel torque that response is estimated increases the friction braking torque.The method comprises that the wheel torque of estimation is based on the vehicle mass of estimating.

In some instances, the method comprises that the wheel torque of estimation accelerates based on vehicle.The method also comprises rolling motor and does not give engine fuel.The method also comprises the Jake brake torque adjustment friction braking torque that response is estimated.The method comprises the engine stop of vehicle.

The method and system of Fig. 1-3 and Figure 29-30 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; Friction brake; And controller, this controller comprises executable non-transition instruction, automatically to stop engine rotation, the transmission system braking torque to be provided, to use friction braking when reducing the transmission system braking torque by DISG.

In one example, this Vehicular system also comprises additional instruction, to use friction braking according to the wheel torque of estimating.This Vehicular system also comprises additional instruction, with the state of charge minimizing transmission system braking torque of response energy accumulating device.This Vehicular system comprises that also the state of charge that responds energy accumulating device reduces the transmission system braking torque greater than the threshold quantity of charging.This Vehicular system also comprises additional instruction, to apply friction braking according to car speed.This Vehicular system also comprises by increasing the brake-press lead oil pressure uses friction braking.This Vehicular system also comprises additional instruction, to respond the zero car speed brake application power of reducing friction.

With reference now to Figure 35,, Figure 35 illustrates when braking from transmission system and is converted to the vehicle acceleration is used for the method for the minimizing drive train torque interference relevant with gear clearance when Transmission gear does not change simultaneously diagram of circuit.The method of Figure 35 can be stored in as executable instruction in non-transient memory device in the system of Fig. 1-3.

3502, method 3500 judges whether whether vehicle unclamp accelerator pedal at least in part in deceleration or chaufeur.Method 3500 can slowed down by monitoring vehicle speed judgement vehicle.The position judgment chaufeur that method 3500 can respond acceleration pedal has unclamped accelerator pedal at least in part.If method 3500 judgement chaufeurs have partly unclamped accelerator pedal or vehicle and slowed down, answer is "yes" and method 3500 proceeds to 3504.That "No" and method 3500 proceed to and withdraw from otherwise answer.

3504, method 3500 is determined the amount of the car brakeing torque of hope.The amount of the car brakeing torque of this hope can rule of thumb be determined and be stored in the function that passes through car speed and driver requested torque index or table in memory device.Therefore, the amount of car brakeing torque can change during car retardation.In one example, the car brakeing torque is the amount of the braking that provides at wheel.Method 3500 proceeds to 3506 after the amount of the car brakeing torque of determining to wish.

3506, method 3500 stops engine rotation and opens the transmission system disconnect-type clutch with fuel saving and therefore can provide via DISG the transmission system braking of higher level.Larger transmission system braking amount via DISG can allow energy accumulating device or storage battery again to be charged with higher speed.TCC (TCC) is adjusted to lock-out state, makes that DISG can be provided additional energy between deceleration period.Engine stop, transmission system disconnect-type clutch open and TCC locked after method 3500 proceed to 3508.

3508, method 3500 judges that whether the state of charge (SOC) of energy accumulating device or storage battery is greater than the threshold value quantity of electric charge.If method 3500 judgement energy accumulating device SOC are greater than threshold value SOC, answer is "yes" and method 3500 proceeds to 3512.Otherwise answering is that "No" and method 3500 proceed to 3510.

3510, method 3500 is used friction braking by increasing the brake-press lead oil pressure.The brake-press lead oil pressure can increase by pump.Friction braking applies the power according to the car brakeing torque of hope.In one example, table or function output brake-press lead oil pressure, this oil pressure is estimated to provide the power of the car brakeing torque of hope.In some instances, the brake-press lead oil pressure difference that can respond between the torque of estimation or hope as herein described and actual car speed is regulated.Method 3500 proceeds to and withdraws from after regulating friction braking.

3512, method 3500 enters the regeneration mode that DISG provides negative drive train torque and charges for energy accumulating device.Specifically, regulate by the negative torque of DISG output and comprise to provide the car brakeing torque of regulating the hope that Transmission gear selects.In one example, can regulate the negative torque of DISG by regulating the DISG charging current.Method 3500 proceeds to 3514. after the negative torque of adjusting DISG is with the car brakeing torque that hope is provided

3514, it is torque that method 3500 judges whether to require positive drive.Positive drive is that torque can be passed through chaufeur depress throttle pedal (for example, increasing driver requested torque) or come requirement by controller.If it is torque that method 3500 judgements have required positive drive, answer is "yes" and method 3500 proceeds to 3516.Otherwise answer is that "No" and method 3500 carry out 3508.

3516, method 3500 should firmly increase TCC (TCC) slip by reducing TCC.In one example, the dutycycle that offers electric actuator is reduced to reduce TCC and should exerts oneself.TCC slides and can be increased to the amount of the predetermined slip of rule of thumb determining.In one example, the TCC slip is based on the amount of the drive train torque increase of hope.Method 3500 proceeds to 3518 after TCC slides increase.

3518, the amount of regenerative braking reduces by reducing the negative torque of DISG.The regenerative braking torque reduces towards zero DISG torque output.Method 3500 proceeds to 3520 after beginning to reduce the regenerative braking torque.

3520, method 3500 judge the regenerative braking torque whether in the torque range of predetermined zero torque (for example, ± 2N-m).In one example, the regenerative braking torque can be estimated according to the DISG charging current.If method 3500 judgement regenerative braking torques are in the torque range of predetermined zero torque, answer is "yes" and method 3500 proceeds to 3522.Otherwise answer is that "No" and method 3500 turn back to 3518, further reduces in 3518 regenerative brakings.

3522, method 3500 is from being converted to speed control mode operation DISG with torque master mode operation DISG.It is speed greater than the predetermined speed of transformer turbine speed that DISG speed is arranged to.Because DISG is connected in face of fluid torque converter, face of fluid torque converter speed is greater than transformer turbine speed.By DISG speed being adjusted to the speed greater than transformer turbine speed, little positive torque passes to input shaft by turbine transformer.Little positive torque eliminate between transmission gear and the vehicle bridge gear between the gap, therefore can reduce the impact between gear.Measure or be commanded to predetermined speed until the velocity contrast between the first gear and the second gear is zero DISG in predetermined time.Speed between gear can be determined from transmission input speed and transmission output shaft speed.

After DISG is with predetermined speed operation predetermined time amount, or the velocity contrast between gear is after zero, and DISG speed increases.In one example, DISG speed increases according to the turbine transformer model.Specifically, one or more function of amount of torque index of transformer turbine speed and the hope of transmitting by turbine transformer, these functions outputs provide the DISG speed of the amount of torque of hope.The amount of torque of wishing is based on driver requested torque.DISG speed be conditioned and gear clearance be eliminated after method 3500 proceed to 3524.

3524, method 3500 remains on speed control mode and regulates the DISG electric current according to the amount of the torque of the start the engine of estimating.As described in front, when DISG was in speed control mode, the electric current that offers DISG was regulated according to the error between the DISG speed of hope and actual DISG speed.In addition, 3524, responding closed transmission system disconnect-type clutch increases the DISG electric current to rotate and start the engine.In one example, the increase of DISG electric current is based on transmission system disconnect-type clutch transfer function, and this transfer function should firmly be exported amount of torque based on what be applied to TCC.For example, be the positive torque that disconnect-type clutch is transmitting 25N-m if transfer function is illustrated in the current underdrive of should exerting oneself, the DISG electric current is increased to the level of the positive torque of the 25N-m that provides additional.The transmission system disconnect-type clutch should firmly can be followed and be stored in the track of rule of thumb determining in controller storage.By this way, the open-loop current that should exert oneself based on the transmission system disconnect-type clutch offers DISG, makes the DISG velocity variations very little and make closed loop DISG speed controller that less speed correction can be provided.After DISG speed and torque were conditioned, method 3500 proceeded to 3526.

3526, method 3500 start the engines.When engine rotation by provide spark and engine fuel to be activated to driving engine.Driving engine is accelerated to DISG speed and then the transmission system disconnect-type clutch is closed.After transmission system disconnect-type clutch closure, motor torque and/or DISG torque are offered transmission system.DISG also is converted to the torque master mode from speed control mode after transmission system disconnect-type clutch closure.

With reference now to Figure 36, Figure 36 illustrates the exemplary sequential that reduces the gear clearance impact of transmission system for the method according to Figure 35 now.The sequential of Figure 36 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 36 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.Horizon 3502 is illustrated in the speed of face of fluid torque converter during this sequential.

The second figure from the top of Figure 36 represents pedal position (for example driver requested torque of accelerator pedal 3606() and brake pedal 3604) with the graph of relation of time.Y-axis represents that pedal position and pedal position increase along the direction of Y-axis arrow.X-axis represents that time and time increase to the right from the left side of figure.

The 3rd figure from the top of Figure 36 represents TCC (TCC) capacity and the graph of relation of time.Y-axis represents the TCC capacity, and the TCC capacity is along the direction increase of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 4th figure from the top of Figure 36 represents the graph of relation of transmission system disconnect-type clutch state and time.Y-axis represent transmission system disconnect-type clutch state and when trace is in higher level near the Y-axis arrow transmission system disconnect-type clutch state used fully.The transmission system disconnect-type clutch unclamps when the close X-axis of transmission system disconnect-type clutch state.Transmission system separates applying pressure when transmission system disconnect-type clutch state increases increases.Amount of torque in the both sides transmission of transmission system disconnect-type clutch when transmission system disconnect-type clutch state trace level increases increases.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 36 represents (DISG) torque of transmission system integrated actuating machine/electrical generator and the graph of relation of time.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 6th figure from the top of Figure 36 is illustrated in the transmission torque of input shaft and the graph of relation of time.Y-axis represents that input shaft torque and input shaft torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

Figure 36 illustrates the example operation of engine restart, and wherein the TCC operation is modulated keeps Transmission gear simultaneously with the conversion of controlling by the transmission gear interstitial area zero torque of change-speed box (for example, by).An example comprises following method: the transmission system disconnect-type clutch is engaged when stepping on accelerator pedal (for example, depressing accelerator pedal), and the DISG rotary engine accelerates to speed that starting at least rotates (for example, 250RPM).Supply engine provides torque with boost engine with fuel and engine combustion, continues to rise by DISG torque (starting opposite with the starter motor type) engine speed simultaneously.This operation is provided for driving the quick motor torque of vehicle.But, because this quick increase of torque can cause metallic sound by the gear clearance district, TCC is opened at least in part and is optionally modulated to control the conversion by the gear clearance district and reduces the speed that wheel torque rises, until conversion is by after the gear clearance district.Therefore, DISG output torque can be conditioned to control drive train torque output in the transition period by the gear clearance district.

Now description can be used in gap recited above and pass in control and pass the additional details of regulating about gear clearance.Just as described herein; be enough to accelerating vehicle and the torque that meets the demands in the torque from DISG, when overcoming road load; be about to stop, stopped at vehicle or mobile/when driving, driving engine can be shut down and the transmission system disconnect-type clutch is opened, as in time T ₈₀Shown in.

Specifically, during the operator did not require that the situation (for example, closed accelerator pedal event) of drive train torque and driving engine do not rotate, DISG can be used as generator operation, regeneration is provided, come substitutes or be additional to the wheel braking that the actuating by brake pedal is required by the operator.By this way, DISG replaces the transmission system braking, if driving engine occurs in this transmission system braking of rotation.DISG again charges a battery according to storage battery SOC or provides electric power for auxiliary device.Then, when the operator required additional output by depress throttle pedal, driving engine can restart to compensate and/or alternative DISG output torque.This conversion comprises passes transmission gear interstitial area (for example, in change-speed box or the final driver element of change-speed box and/or after change-speed box in diff).Specifically, this is as noted before herein, and during the transmission system braking during when operator's depress throttle pedal, positive DISG and motor torque are applied to transmission system and transmission system and stand torque reversal (for example, negative arrive positive torque conversion).Torque reversal causes that transmission system passes interstitial area (for example, the gear space of the tooth in rear diff to tooth).

In time T ₈₁, brake pedal is unclamped by chaufeur, and the TCC capacity is reduced, as shown in TCC capacity trace is reduced.And response is because the released thereby less transmission system braking of brake pedal is required, the negative torque of DISG reduces towards zero torque.Response DISG torque also reduces in the torque of decline input shaft.

In time T ₈₂, therefore the chaufeur depress throttle pedal requires to increase the positive torque of transmission system.After short time, the DISG torque is just changing and the TCC capacity slides and reduces by increasing TCC from negative sense.The increase transmission system disconnect-type clutch of response accelerator pedal position also begins closure.Closed transmission system disconnect-type clutch begins boost engine.The input shaft torque reduces to zero torque gradually from little negative torque.In time T ₈₂And time T ₈₃Between, the poor TCC capacity between response the first wheel tooth and the second wheel tooth speed reduces.Velocity contrast between wheel tooth is reverse from drive train torque.

In time T ₈₃, between gear, wheel tooth is in its maximum level to the velocity contrast of wheel tooth, and then begins to reduce when gear clearance reduces.Between the response gear, the wheel tooth velocity contrast reduces, and the TCC capacity increases.Between the response gear, the wheel tooth velocity contrast reduces the DISG torque also increases, so that the gap can reduce.Transmission system disconnect-type clutch state continues to increase, and the amount of the torque that expression transmission system disconnect-type clutch can transmit is increasing.Accelerator pedal position and car speed also continue to increase.

In time T ₈₄, engine speed reaches face of fluid torque converter speed (identical with DISG speed).Responding engine speed reaches face of fluid torque converter speed, and TCC capacity and transmission system disconnect-type clutch also increase.By waiting for until engine speed equals face of fluid torque converter speed with complete closed transmission system disconnect-type clutch, the torque that can reduce in transmission system is disturbed.The response drive train torque is increased in torque on input shaft from negative torque conversion to positive torque.After positive torque, the DISG torque also increases from negative torque conversion in torque on the complete close slew device of response transmission system disconnect-type clutch input shaft.

The illustrative methods of this sequential recognizes that several seem incoherent information, comprising: (1) motor torque and DISG torque when transmission system disconnect-type clutch 236 is closed superposes; (2) due to assembling restriction, particularly with the restriction relevant to the restriction of Power Train length and diameter, the torque capacity of DISG trends towards being starkly lower than the maximum engine torque; (3) the DISG torque is the function of DISG speed, and DISG speed equals engine speed when power-transfer clutch is fully closed; (4) the DISG torque ratio reaches about 1 more consistently, the threshold value pump impeller speed of 000 ± 100RPM, and then DISG torque and DISG speed are inversely proportional to, be called constant power district, until the vortex flow of friction and unknown losses reduces torque sooner and with higher threshold velocity (for example, about 3,000 ± 500RPM) increase the pump impeller rotating speed.

Therefore, in the situation that engine shutdown during the pedal event of closure (for example, accelerator is not employed) if Power Train with the braking mode operation of regeneration, operator's depress throttle pedal.If DISG can provide the torque driving engine of hope can keep shutdown.Then, the transmission system disconnect-type clutch can stay open and DISG can be converted to very soon and approaches zero torque.DISG moves and changes lentamente by the gear clearance district with speed control mode.Increase fast torque so that the torque of hope to be provided changing by DISG after the gear clearance district.By this way, can reduce the noise that to hear and pulse by the torque of transmission system during drive train torque is from negative torque conversion to positive torque.

Therefore, the method and system of Fig. 1-3 and Figure 35-36 provides operating transmission system, comprising: stop engine rotation and provide the regenerative braking by transmission system; Be converted to transmission system from the regenerative braking positive torque conversion is provided; And between tour with speed control mode operating transmission system integrated actuating machine/electrical generator.The method is included in speed control mode operating transmission system integrated actuating machine/electrical generator before with afterwards, with torque master mode operating transmission system integrated actuating machine/electrical generator.The method comprises that transmission system integrated actuating machine/electrical generator is adjusted to the speed based on transformer turbine speed.

In one example, the method is included in and opens the transmission system disconnect-type clutch when driving engine is stopped.The method also is included in after speed control mode operating transmission system integrated actuating machine/electrical generator, and closed transmission system disconnect-type clutch is with start the engine.The method also comprise when energy accumulating device state of charge the regenerative braking is provided when being less than the threshold value electric charge.The method also is included in from regenerative braking and is converted to the slip that increases TCC during transmission system provides positive torque.

The method and system of Fig. 1-3 and Figure 35-36 provides operating transmission system, comprising: stop engine rotation and provide the regenerative braking by transmission system integrated actuating machine/electrical generator; Make transmission system integrated actuating machine/electrical generator provide positive torque from providing the regenerative braking to be converted to transmission system; Provide the transformation of positive torque to regulate the slip of TCC with response from providing regenerative to brake to transmission system.Also be included in make transmission system integrated actuating machine/electrical generator from provide regenerative braking be converted to transmission system provide positive torque during with speed control mode operating transmission system integrated actuating machine/electrical generator.

In one example, the method comprises with the speed operating transmission system integrated actuating machine/electrical generator greater than the predetermined speed of transformer turbine speed.The method also comprise in response to gear clearance reduce gather way.The method comprises that the slip of regulating TCC comprises that increasing TCC slides.The method comprises that making transmission system integrated actuating machine/electrical generator is the torque-demand that response increases from provide the regenerative braking to be converted to providing positive torque to transmission system.When also being included in the slip of regulating this TCC, the method comes start the engine by closed transmission system disconnect-type clutch.

The method and system of Fig. 1-3 and Figure 35-36 also provides a kind of power car system, comprising: driving engine; Electrical motor; Be arranged on the transmission system disconnect-type clutch between this driving engine and electrical generator; Change-speed box; Be arranged on the turbine transformer between this electrical motor and change-speed box; And the controller that comprises executable non-transition instruction, be used for by reduce the gear clearance of change-speed box with speed control mode service meter and the speed of regulating this electrical motor.This Vehicular system also comprises TCC and additional executable instruction, when motor is the TCC that slides with the speed control mode operation.

In some instances, this Vehicular system also comprises additional executable instruction, moves this electrical motor with the predetermined speed greater than the speed of the turbine of this turbine transformer.This Vehicular system also comprises additional executable instruction, to increase the speed of this electrical motor after with predetermined speed service meter.This Vehicular system also comprises additional executable instruction, so that the transmission system braking torque to be provided by electrical motor.This Vehicular system also comprises additional executable instruction, to reduce the transmission system braking torque towards zero torque before moving this electrical motor with speed control mode.

With reference now to Figure 37,, Figure 37 illustrates the illustrative methods be used to the sail mode that enters the transmission system operation.The method of Figure 37 can be stored in as executable instruction in the non-transient memory device of controller 12 of Fig. 1-3.

In one example, the feature of sail mode be when the transmission system disconnect-type clutch is opened in driving engine burned air-fuel mixture, so driving engine to DISG, turbine transformer and change-speed box substantially do not provide torque (for example, less than ± 5N-m).Sail mode can comprise the navigation idling speed lower than base idle rotating speed, this base idle rotating speed be if the transmission system disconnect-type clutch of driving engine by closure when being connected in transmission system driving engine with the speed of its operation.Idling speed in sail mode is lower, therefore can fuel saving in sail mode.And, the spark timing in sail mode can ratio engine the spark timing when closed shifts to an earlier date more with the operation of base idle rotating speed and transmission system disconnect-type clutch.The base idle rotating speed can be described as the engine idle rotating speed when engine preheating and auxiliary load are applied to driving engine and when driving engine is connected in DISG by the transmission system disconnect-type clutch.Driving engine can and shift to an earlier date than spark timing during using basic idling speed in sail mode more with low engine speed operation, may be necessary because offset the less deposit torque of the momentary duty that may put on transmission system.

3702, method 3700 is determined operating mode.Operating mode can include but not limited to drive train torque demand, transmission system disconnect-type clutch state, engine speed, car speed, DISG torque and battery charge will state.Method 3700 proceeds to 3704 after operating mode is determined.

3704, whether the drive train torque that method 3700 judgements are wished is greater than the threshold value amount of torque that offers this transmission system by DISG.The threshold value amount of torque can slightly less than specified DISG torque (for example, little by 10%).In one example, available DISG amount of torque can estimate from the value of rule of thumb determining, this value of rule of thumb determining is stored in table by DISG speed and DISG temperature index.This table output can be offered by DISG maximum or the available amount of torque of transmission system.In other examples, the DISG torque of available or threshold value is less than the DISG torque of maximum, if the drive train torque of therefore wishing approaches maximum DISG torque, driving engine can remain in sail mode.And the operating mode that threshold value DISG torque can respond such as the DISG temperature increases or reduces.Method 3700 will compare from the output of table and the drive train torque amount of hope.If the amount of torque that method 3700 judgements are wished is greater than the DISG torque of threshold value, answer is "yes" and method 3700 proceeds to 3706.Otherwise answer is that "No" and method 3700 proceed to 3716.

3706, the closed transmission system disconnect-type clutch of method 3700 is with rotation and start the engine.The transmission system disconnect-type clutch can come closed according to the predetermined closed trajectory that is stored in memory device.Alternately, driving engine can start by the starter outside DISG, and driving engine accelerates to afterwards closed this transmission system disconnect-type clutch of DISG speed.Also can increase TCC slides in order to respond the torque minimizing drive train torque interference of wishing.Begin closed method 3700 afterwards at the transmission system disconnect-type clutch and proceed to 3708.

3708, and if method 3700 is to driving engine feed fuels driving engine burned air compound start the engine then not.Fuel and spark can offer engine cylinder so that burning therein.。Method 3700 proceeds to 3710 after engine starting rotates beginning.

3710, whether method 3700 judgement energy accumulating device (for example, storage battery) state of charge are greater than threshold quantity.In one example, the battery charge will state can be estimated from battery tension.If method 3700 judgement battery charge will states are greater than threshold quantity, answer is "yes" and method 3700 proceeds to 3714.Otherwise answer is that "No" and method 3700 proceed to 3712.

3714, method 3700 operation driving engine machines and DISG are to provide the amount of the drive train torque of wishing you.Can be according to working conditions change by driving engine machine and each friction torque that provides of DISG.For example, if the battery charge will state is low, the drive train torque of major part can be provided by driving engine rather than DISG.The amount of torque that is offered transmission system by driving engine can be according to U.S. Patent No. 7,006, and 121 disclosed methods estimate, it is incorporated into this by reference fully for all purposes and purpose.The amount of torque that is offered transmission system by DISG can be estimated from the table of rule of thumb determining by DISG electric current and speed index.After torque offered transmission system by driving engine and DISG, method 3700 proceeded to and withdraws from.

3712, method 3700 operation driving engines and do not move DISG, with torque that hope is provided to transmission system.And in some instances, DISG can be converted to the battery charge pattern, in the battery charge pattern is transformed into electric energy and is stored in energy accumulating device from the mechanical energy of driving engine by DISG.In one example, regulate engine air tolerance and engine fuel amount, so that the drive train torque amount of hope to be provided.For example, if the drive train torque amount of wishing increases, offering the fuel of engine cylinder and the amount of air also increases.After torque that driving engine operation is adjusted to provide hope was to transmission system, method 3700 proceeded to and withdraws from.

3716, method 3700 judges whether driving engine moves and burned air-fuel mixture in engine cylinder.In one example, when the motor torque that can be proved by the engine speed that increases increases, can determine that driving engine is at burned air-fuel mixture.If method 3700 judgement driving engines are at burned air-fuel mixture, answer is "yes" and method 3700 proceeds to 3730.Otherwise answer is that "No" and method 3700 proceed to 3718.

3718, method 3700 judges that whether the battery charge will state is greater than threshold quantity.In one example, battery tension is for the bias voltage of estimating the battery charge will state.If method 3700 judgement battery charge will states are greater than threshold quantity, answer is "yes" and method 3700 proceeds to 3724.Otherwise answer is that "No" and method 3700 proceed to 3720.

3724, method 3700 provides the drive train torque of hope there is no torque from driving engine by DISG.Offer the electric current of DISG based on the table that is stored in memory device, this this table is exported the DISG magnitude of current according to DISG torque and the DISG temperature of hope.Value in table can rule of thumb be determined.Method 3700 proceeds to and withdraws from after the DISG torque offers transmission system.

3720, method 3700 is rotated and start the engine.Driving engine can start via the starter outside DISG or by DISG.If driving engine is rotated by DISG, transmission system disconnect-type clutch closure is with from DISG to the driving engine transmitting torque.Driving engine starts to engine cylinder feed fuels and spark by reach the starting velocity of rotation at driving engine after.Can change for different operating mode engine starting velocities of rotation.For example, if driving engine is rotated by the starter outside DISG, start velocity of rotation and be the speed less than 250RPM.But, if driving engine is rotated by DISG, start velocity of rotation and be the speed less than 1200RPM.Method 3700 proceeds to 3722 after engine starting rotates and starts.

3722, method 3700 begins that at least a portion torque is offered wheel and begins as battery charge to increase the battery charge will state.The transmission system disconnect-type clutch is closed when driving engine provides torque and is battery charge for car.And, regulate the drive train torque amount that motor torque exports to provide hope.Motor torque output can increase or reduce by regulating cylinder air amount and cylinder fuel quantity.At least a portion driving engine output offers after wheel method 3700 and proceeds to and withdraw from.

3730, whether the choice situation that method 3700 judgements enter sail mode occurs.In one example, can enter sail mode when engine temperature during greater than threshold temperature.And, can assess operating mode such as the torque of engine speed and requirement to determine whether entering sail mode.In addition, in some instances, when being less than the threshold value state of charge, the battery charge will state can enter sail mode.

For example, when catalyst temperature during lower than threshold value or other situations also can enter sail mode.Controller can be selected driving engine to be remained on idling speed rather than kill engine, and may increase blowdown because if driving engine starts under cold catalyst behavior.If storage battery SOC is high and/or current operating point will be required so that driving engine moves at the low fuel efficient point, controller can be selected driving engine is remained on idling speed rather than closed transmission system disconnect-type clutch and operation driving engine to produce torque.

When requiring to rinse, the fuel vapour filter tank also can enter sail mode.Because fuel vapour rinses predetermined carrying out, controller can be selected driving engine to be remained on idling speed rather than kill engine.If storage battery SOC is high and/or current operating point will be required so that driving engine moves at the low fuel efficient point, controller can be selected driving engine is remained on idling speed rather than closed transmission system disconnect-type clutch and operation driving engine to produce torque.

When increasing the brake boost vacuum, hope can enter sail mode.Because vacuum wishes, controller can be selected driving engine to be remained on idling speed rather than kill engine, and the operation driving engine is to provide vacuum.

Can enter sail mode when engine coolant temperature (ECT) is low.Because ECT is low, controller can be selected driving engine to be remained on idling speed rather than kill engine.

When wish responsive movement chaufeur pattern comparatively fast step on accelerator pedal the time can enter sail mode.Because this driving model determined or be chosen as mode of motion, controller can be selected driving engine to be remained on idling speed rather than kill engine.In the situation that driving engine is with navigation idling rather than engine stop, the response of chaufeur being stepped on accelerator pedal will be than comparatively fast.

If sail mode appears allowing to enter in the situation that method 377 judgements are selected, answer is "yes" and method 3700 proceeds to 3732.Otherwise answer is that "No" and method 3700 proceed to 3718.

3732, method 3700 is opened the transmission system disconnect-type clutch.The transmission system disconnect-type clutch is opened so does not provide any torque that is produced by driving engine to comprise the part of the transmission system of DISG, turbine transformer and change-speed box with maintenance.Open the transmission system disconnect-type clutch driving engine can more effective running state be moved to be connected in DISG, turbine transformer and change-speed box such as the fruit driving engine, because driving engine can move with less torque reserve.When in one example, the motor torque deposit can be characterized by in the situation that all available motor torque amounts are not provided with specific speed and amount of air when driving engine operation from the available amount of torque of driving engine.

The torque that can produce 100N-m when for example, driving engine moves with 1200RPM and with the cylinder air amount of predesignating.But obtainable motor torque amount can be 125N-m under 1200RPM when driving engine is introduced predetermined cylinder air amount.The difference of 25N-m can be moved to explain with the spark timing that postpones from the MBT spark timing with driving engine.25N-m represents can keep compensating the torque reserve of the torque interference that may offer driving engine.But 25N-m also represents the loss of the engine efficiency that causes due to S. D.Driving engine can with less torque reserve operation, can offer driving engine via transmission system because less torque is disturbed when the transmission system disconnect-type clutch is opened.Method 3700 proceeds to 3734 after the transmission system disconnect-type clutch is opened.

3734, whether the drive train torque that method 3700 judgement is wished is in the threshold range of DISG torque threshold.The DISG torque threshold can represent the maximum amount of torque that can obtain from DISG or less than the amount of torque of obtainable DISG torque total amount.If the drive train torque that method 3700 judgements are wished is in the threshold range of DISG torque threshold, answer is "yes" and method 3700 proceeds to 3736.Otherwise answer is that "No" and method 3700 proceed to 3738.

3736, method 3700 is with navigation idling speed operation driving engine and regulate driving engine spark timing and valve timing, to improve engine efficiency and fuel efficiency.The motor torque of wishing when the transmission system disconnect-type clutch is in open mode is provided by DISG.The navigation idling speed can be lower than basic idling speed when driving engine is connected in DISG and change-speed box.And,, and compare spark timing can shift to an earlier date when driving engine moves with the base idle rotating speed with navigation idling speed when operation at driving engine.Can use basic idling speed when the drive train torque of hope is low and when driving engine is connected in the remainder of transmission system via the transmission system disconnect-type clutch of closure.Engine valve timing can be regulated so that the Volumetric efficiency operation driving engine to improve.In one example, can regulate valve timing and make the closed delay of inlet valve timing, to increase engine intake manifold pressure when cylinder air inlet is relatively lower.Entering after sail mode method 3700 3736 at driving engine proceeds to and withdraws from.

3738, method 3700 judges the starter that whether exists in system outside DISG.In one example, if the starter variation outside DISG, method 3700 can judge the starter that does not exist outside DISG.3700 also can judge the starter that exists outside DISG when starter exists bit to be arranged in memory device.If there is the starter outside DISG in method 3700 judgements, answer is "yes" and method 3700 proceeds to 3740.Otherwise answer is that "No" and method 3700 proceed to 3740.

3740, method 3700 stops engine rotation and the drive train torque of hope is provided by DISG.By stopping stopping engine rotation to fuel flow and the spark of engine cylinder.3740 therefore stop that driving engine can be saved additional fuel flow and because driving engine can postpone less than the torque from DISG.By this way, larger DISG amount of torque can offer transmission system, because the part of available DISG torque needn't keep restarting driving engine with the form of deposit.Method 3700 proceeds to and withdraws from after stopping driving engine.

3742, method 3700 judges that DISG output torque is whether in the threshold range of engine starting rotational torque (for example, from the zero velocity rolling motor to the amount of torque less than the starting velocity of rotation of 250RPM).For example, if the engine starting rotational torque is 40N-m and threshold range is 5N-m, when DISG output torque is 35.5N-m DISG in the threshold range of engine starting rotational torque.If method 3700 judgement DISG output torques are in the threshold value torque range of engine starting rotational torque, answer is "yes" and method 3700 proceeds to 3744.Otherwise answer is that "No" and method 3700 proceed to 3746.

3746, method 3700 stops the drive train torque that engine starting rotated and provided via DISG hope.Engine stop also reduces consumption of fuel.Because DISG has enough available amount of torque, so driving engine can stop.If the drive train torque of wishing when engine stop increases, before DISG did not have enough torque output capacities to come start the engine and the rotation system torque of hope is provided, driving engine can restart via DISG.But in some instances, the additional vacuum of threshold value and vehicle requirement, fuel vapour are rinsed if the battery charge will state is less than, higher catalyst temperature or higher engine temperature, and driving engine can continue to dally with the sail mode idling speed.Method 3700 proceeds to and withdraws from after engine stop.

3744, as 3736 described, method 3700 is regulated spark timing, valve timing, and is provided drive train torque via DIS with navigation idling speed operation driving engine.Method 3700 proceeds to and withdraws from after driving engine enters sail mode.

Should be pointed out that transmission system can be according to the described operation of the method for Figure 37 when chaufeur reduces driver requested torque (for example, loose accelerator pedal or the input of minimizing accelerator).During greater than the torque of DISG threshold value, torque can offer the transmission system that is connected in wheel from driving engine when driver requested torque.Engine speed can be reduced to the sail mode idling speed and response reduces driver requested torque reasonable match separately.DISG can enter the regeneration mode that the constant rate of deceleration of charging and vehicle is provided for storage battery.In this, the torque of DISG threshold value is greater than 75% of specified DISG torque an example.

Should be pointed out that transmission system can be according to the described operation of the method for Figure 37 when chaufeur increases driver requested torque (for example, step on accelerator pedal or increase the accelerator input).Driving engine can respond the driver requested torque of increase and accelerate to DISG speed from the navigation idling speed.It is that disconnect-type clutch can be closed that responding engine speed reaches the DISG speed transmission.

When should be pointed out that working as chaufeur during vehicle startup increases driver requested torque (for example, step on accelerator pedal or increase the accelerator input), transmission system can be according to the described operation of the method for Figure 37.Response increase driver requested when driving engine does not rotate the DISG torque offer vehicle transmission system.Respond driver requested torque in the threshold range of engine starting rotational torque (for example, wherein the DISG torque is greater than 75% of the engine starting rotational torque), driving engine can restart and not provide motor torque to transmission system with the idle running of sail mode idling speed.Driving engine can with speed control mode accelerate to basic coupling DISG speed (for example, ± 50RPM), and (the transmission system disconnect-type clutch can be closed for example, ± 50RPM) time when engine speed mates DISG speed substantially.In some instances, when the torque of hope between engine starting rotational torque and threshold value DISG torque when (for example, the torque between 75% specified DISG torque and specified DISG torque) engine speed can follow DISG speed.

And 3736 and 3734, when the torque of hope was in the pre-determined torque scope of DISG threshold value torque, driving engine can move to follow DISG speed with speed control mode.By following DISG speed, the transmission system disconnect-type clutch can be closed in order to improve the transmission system response as early as possible.

By this way, the method for Figure 37 provides efficient engine operation mode, and can reduce engine fuel consumption comparing with base idle rotating speed operation driving engine.And the method for Figure 37 is provided at and stops driving engine in the time of can saving additional fuel.In addition, even driving engine can move more efficiently or stop, the method also keeps the drive train torque response.

With reference now to Figure 38,, Figure 38 illustrates the method be used to the sail mode that withdraws from the transmission system operation.The method of Figure 38 can be stored in as executable instruction in the non-transient memory device of controller 12 of Fig. 1-3.

3802, method 3800 is determined operating mode.Operating mode can include but not limited to drive train torque demand, transmission system disconnect-type clutch state, engine speed, car speed, DISG torque and battery charge will state.Method 3800 proceeds to 3804 after operating mode is determined.

3804, method 3800 judges whether whether the driving engine in sail mode opened with the operation of navigation idling speed and transmission system disconnect-type clutch.Engine operation mode and transmission system disconnect-type clutch running state can be determined by inquiring about one or more bit or the sign that are stored in memory device.If method 3800 judgement driving engines are not at sail mode, answer is that "No" and method 3800 proceed to and withdraw from, if method 3800 judgement driving engines are opened at sail mode and transmission system disconnect-type clutch, answer is "yes" and method 3800 proceeds to 3806.

, 3806, whether the drive train torque that method 3800 judgements are wished is greater than the torque of DISG threshold value.The torque of DISG threshold value can be equal to or less than available DISG amount of torque.If the drive train torque that method 3800 judgements are wished is greater than the torque of DISG threshold value, answer is "yes" and method 3800 proceeds to 3808.Otherwise answer is that "No" and method 3800 proceed to and withdraw from.

3808, method 3800 is increased to the speed of with DISG synchronizeing with engine speed from the navigation idling speed by increasing engine air tolerance and engine fuel amount (for example, offering air and the fuel quantity of engine cylinder).And spark timing can postpone from the MBT spark timing when engine air tolerance and engine fuel amount increase.Engine air tolerance and engine fuel amount increase make motor torque increase and make driving engine accelerate to the speed of DISG after method 3800 proceed to 3810.

3810, method 3800 increases TCC (TCC) and slides.TCC slides can should firmly be increased by reducing TCC.Slide by increasing TCC, can reduce drive train torque and disturb.Method 3800 proceeds to 3812 after increasing the TCC slip.

3812, the closed transmission system disconnect-type clutch of method 3800.Adjusted to DISG speed after one period predetermined time when engine speed reaches DISG speed and at engine speed, can closed transmission system disconnect-type clutch.Method 3800 proceeds to 3814 after closed transmission system disconnect-type clutch.

3814, method 3800 increases motor torque by increasing engine air and fuel quantity.In addition, can increase the DISG torque to increase motor torque, therefore the drive train torque of hope can be provided.Regulate motor torque and DISG torque with the drive train torque that hope is provided after method 3800 proceed to and withdraw from.

By this way, the response of the method for Figure 38 is stepped on accelerator pedal (for example, depressing accelerator pedal to higher torque-demand) transformation and is left sail mode, and wherein DISG provides torque and racing of the engine for wheel.For example, chaufeur is stepped on accelerator pedal and new torque-demand is increased on the total torque capacity of DISG fast.Driving engine accelerates towards DISG speed with speed control mode, TCC can open to allow torque increase and transmission system isolation and transmission system disconnect-type clutch can closure so that driving engine accelerates to very fast speed.Substantially (for example, ± 100RPM) driving engine is converted to the torque master mode afterwards to reach DISG speed at driving engine.Its rear engine and DISG can provide the torque of hope.

With reference now to Figure 39,, Figure 39 illustrates for comprise the exemplary sequential of the transmission system of sail mode according to the method operation of Figure 37 and Figure 38.The sequential of Figure 39 can provide by the system of Fig. 1-3.

The first figure from the top of Figure 39 represents the graph of relation of car speed and time.Y-axis represents that car speed and car speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.

The second figure from the top of Figure 39 represents the drive train torque of wishing and the graph of relation of time.The drive train torque of wishing can be on wheel, on face of fluid torque converter, on transformer turbine or the torque on the transmission system disconnect-type clutch.The drive train torque that Y-axis represents the drive train torque of wishing and hope increases along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.Horizon 3902 expression DISG have the ability to offer the threshold value (for example, the torque in the pre-determined torque scope of specified or maximum DISG torque) of the drive train torque of transmission system.

The 3rd figure from the top of Figure 39 represents the graph of relation of transmission system disconnect-type clutch state and time.Y-axis represents transmission system disconnect-type clutch state and transmission system disconnect-type clutch closure when transmission system disconnect-type clutch state trace is in the higher level of close Y-axis arrow.The transmission system disconnect-type clutch is opened when transmission system disconnect-type clutch state trace is in lower level near X-axis.X-axis represents that time and time increase along the direction of X-axis arrow.

The 4th figure from the top of Figure 39 represents the graph of relation of engine condition and time.Y-axis represents engine condition and engine rotation when the engine condition trace is in the higher level of close Y-axis arrow.Driving engine does not rotate when the engine condition trace is in the reduced levels of close X-axis.X-axis represents that time and time increase along the direction of X-axis arrow.

The 5th figure from the top of Figure 39 is the graph of relation of energy accumulating device or battery charge will state (SOC) and time.Y-axis represents that storage battery SOC and storage battery SOC increase along the direction of Y-axis arrow.X-axis represents that time and time increase along the direction of X-axis arrow.The threshold quantity of the battery charge will that horizon 3906 expressions are wished.Quantity of electric charge higher than 3906 can be wished, to reduce the possibility of storage battery variation.

In time T ₈₅, car speed is zero, engine stop, and the transmission system disconnect-type clutch is opened, and the battery charge will state is in greater than the medium level in 3906 level.Stop at the traffic signal places when vehicle or when stopping these situations can be the regenerative situation.

In time T ₈₆, response as the driver requested torque of increase of determining from the accelerator pedal (not shown) increase the drive train torque of wishing.Driving engine remains on closure state and the transmission system disconnect-type clutch remains closed.Car speed begins to increase when transmission system (DISG) (not shown) in conjunction with starter and/or electrical generator begins to provide positive torque to vehicle transmission system.Storage battery SOC begins to descend when battery charge will is used to promote vehicle.

In time T ₈₆And time T ₈₇Between, responding driver requested torque, the drive train torque of hope surpasses level of torque 3904.As a result, engine rotation and startup; But the transmission system disconnect-type clutch stays open.Driving engine can start via the starter outside DISG.Car speed continues to increase and storage battery SOC continues to descend.

In time T ₈₇, responding driver requested torque, the drive train torque of hope surpasses level of torque 3902.After the very short time, it is closed that the response drive train torque surpasses level of torque 3902 transmission system disconnect-type clutchs.By closed transmission system disconnect-type clutch, drive train torque can increase by increasing motor torque.Closed transmission system disconnect-type clutch is connected in DISG and remaining transmission system with driving engine.Driving engine keeps operation and motor torque to increase, and the torque of therefore wishing is provided by DISG and driving engine.Storage battery SOC continues to reduce when DISG provides torque to transmission system.

In time T ₈₈, response is lower than the chaufeur input of the level of threshold value level of torque 3902, and the drive train torque of hope reduces, but it remains on threshold value level of torque 3904.The drive train torque of the hope that response reduces, motor torque reduces.In addition, the transmission system disconnect-type clutch is opened so that driving engine separates with transmission system with DISG.Driving engine is burned air and fuel still.Engine speed can be reduced to the navigation idling speed, and the navigation idling speed is lower than the basic idling speed of engine rotation when driving engine is connected in DISG.In addition, the timing of driving engine spark can shift to an earlier date.The engine speed that reduces and the spark timing that shifts to an earlier date can reduce consumption of fuel.

In time T ₈₉, the drive train torque of hope is increased to level higher than threshold value torque 3902 for the second time by chaufeur.It is closed that the response drive train torque surpasses torque threshold 3902 transmission system disconnect-type clutchs.So motor torque increases and the drive train torque of hope provides via driving engine.DISG enters generator mode and the battery charge will state increases via a part of motor torque.When motor torque car speed when offering transmission system increases.

In time T ₉₀, the drive train torque that the driver requested torque that response reduces is wished reduces.The drive train torque of wishing is reduced to the torque lower than threshold value torque 3904.Therefore, respond the drive train torque of low requirement, the transmission system disconnect-type clutch is opened and engine rotation is stopped.By this way, can reduce fuel consumption in vehicles.DISG rests on generator mode and increase battery charge when car retardation.

In time T ₉₁, respond the drive train torque increase that driver requested torque is wished.The drive train torque of wishing is increased to the level between torque threshold 3902 and torque threshold 3904.Due to the drive train torque of hope near threshold value torque 3902, engine rotation and startup, if the drive train torque of therefore wishing further increases, motor torque can obtain with the time that reduces.By provide the torque car speed to increase to DISG.The battery charge will state begins to reduce when DISG provides torque to vehicle transmission system.

In time T ₉₂, response increases the drive train torque increase that driver requested torque is wished.The drive train torque of wishing is increased to the level higher than threshold value torque 3902.After the very short time, the transmission system disconnect-type clutch is closed and motor torque offers transmission system.By this way, drive train torque can easily increase and need not wait for that engine speed reaches the level that torque can offer transmission system.DISG also is converted to generator mode and storage battery SOC increases.

In time T ₉₃, the drive train torque that response reduces to wish lower than the chaufeur input of the level of threshold value level of torque 3902, but it remains on threshold value level of torque 3904.The drive train torque of the hope that response reduces, motor torque reduces.And the transmission system disconnect-type clutch is opened so that driving engine and DISG and transmission system disconnect.Driving engine is burned air and fuel still.Engine speed can be reduced to the navigation idling speed.Torque can offer transmission system via the DISG that is converted to the torque master mode of the positive torque of vehicle transmission system output.

In time T ₉₄, when DISG continued to consume electric charge, storage battery SOC reduced to 3906 level.It is closed that response storage battery SOC and DISG are converted to generator mode transmission system disconnect-type clutch.Driving engine provides torque to transmission system and DISG.Therefore, drive train torque and the storage battery SOC transmission system disconnect-type clutch of response hope can open and closes.At T ₉₄Afterwards the very short time, the drive train torque of hope is increased to the level higher than torque threshold 3902.Because the transmission system disconnect-type clutch is closed, it remains on this closure state.

In time T ₉₅, the driver requested torque that response reduces, the drive train torque of hope reduces.The drive train torque of wishing is reduced to the torque lower than threshold value torque 3904.Therefore, respond the drive train torque of low hope, the transmission system disconnect-type clutch can be opened and engine rotation is stopped.DISG rests on generator mode and increase battery charge when car retardation.

With reference now to Figure 40,, Figure 40 illustrates the exemplary sequential that comprises the transmission system of sail mode according to the method operation of Figure 37 and 38.The sequential of Figure 40 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 40 represents the graph of relation of transmission system disconnect-type clutch state and time.Y-axis represents transmission system disconnect-type clutch state, and the transmission system disconnect-type clutch is closed when transmission system disconnect-type clutch state trace is in the higher level of higher Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The second figure from the top of Figure 40 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The basic engine idle rotating speed of horizon 4002 expressions when driving engine is connected in DISG via the transmission system disconnect-type clutch.Horizon 4004 expressions still are not attached to the basic driving engine sail mode idling speed of DISG when engine combustion air and fuel.

The 3rd figure from the top of Figure 40 represents the graph of relation of DISG torque and time.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.Horizon 4006 expression DISG can offer the amount (for example, specified DISG torque) of the torque of transmission system.Horizon 4008 is illustrated in the amount that DISG in the time of can starting rolling motor from zero velocity can offer the torque of transmission system.

The 4th figure from the top of Figure 40 represents the drive train torque of wishing and the graph of relation of time.Y-axis represents to wish drive train torque and wishes that drive train torque increases along the direction of Y-axis arrow.In one example, the drive train torque of hope is based on the driver requested torque as determining from accelerator pedal.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 5th figure from the top of Figure 40 represents the running state of low power starting machine (starter that for example has the cranking power lower than DISG).Y-axis represents the running state of low power starting machine, and when the running state trace of low power starting machine during near the Y-axis arrow low power starting machine rotate.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₉₆, the level that transmission system disconnect-type clutch closure and engine speed are raising.Driving engine provides positive torque to transmission system.The DISG torque is in the expression driving engine provides the low-level of most of torque to transmission system.And the low capacity starter does not move.

In time T ₉₆And time T ₉₇Between, the drive train torque that response is wished reduces the transmission system disconnect-type clutch and opens and engine stop.Responding driver requested torque reduces the (not shown) drive train torque and reduces.The low capacity starter keeps shutting down and the DISG torque remains on lower level.

In time T ₉₇, the low state (not shown) transmission system disconnect-type clutch of response battery charge is partly closed.The closed transmission system disconnect-type clutch of DISG torque response increases tout court.DISG provides additional torque to be used for start the engine to transmission system.After this very short time, by fuel and spark start the engine are provided to driving engine.The DISG torque reduces and turns back to negative torque when DISG enters generator mode DISG torque when charging a battery after engine starting.Via the transmission system disconnect-type clutch and when the DISG torque DISG during lower than threshold value 4008, driving engine starts rotation without the low capacity starter.

In time T ₉₇And time T ₉₈Between, driving engine and DISG charge a battery.Engine stop and DISG begin to provide to the positive torque of transmission system after battery charge.The transmission system disconnect-type clutch is also opened when engine stop.The driver requested torque drive train torque that the very short time wishes after engine stop that response increases increases.But the drive train torque of hope is not in the threshold range of level of torque 4006, so driving engine does not start.

In time T ₉₈, the drive train torque of hope is increased in the threshold range of the torque of level of torque 4006.The increase of the drive train torque that response is wished, the low capacity starter is engaged and rolling motor.At very short thereafter time engine starting during when spark and fuel supply engine.There is no assistance from driving engine because DISG can provide the drive train torque of hope, so the transmission system disconnect-type clutch remains on open mode.Driving engine is with navigation idling speed operation, the drive train torque of expecting the hope that increases.

In time T ₉₉, the drive train torque that the driver requested torque (not shown) that response reduces is wished is reduced to the level lower than threshold level 4008.The drive train torque and the low capacity starter that respond low hope keep closing, engine stop.The transmission system disconnect-type clutch also remains on open mode.

In time T ₉₉And time T ₁₀₀Between, the drive train torque that the driver requested torque that response increases is wished increases.The drive train torque of wishing is increased to lower than the level away from the threshold level of level of torque 4006.Therefore, DISG provides the drive train torque of hope and start the engine not.The transmission system disconnect-type clutch remains on open mode.

In time T ₁₀₀, the drive train torque that the driver requested torque that response increases is wished further increases.The drive train torque that response is wished is increased in the scope of threshold level of level of torque 4006, and the low capacity starter is engaged and rotary engine.The responding engine rotation is by providing spark and engine fuel to be activated to driving engine.Driving engine is accelerated to sail mode idling speed 4004.DISG continues as transmission system provides whole positive torque to satisfy the drive train torque of wishing.After engine starting, very short time low capacity starter is disengaged.

In time T ₁₀₁, the driver requested torque that response increases, the drive train torque of hope is increased to the level greater than level of torque 4006.Response increases that driver requested torque transmission system disconnect-type clutch is closed and engine speed also increases, so driving engine can provide additional torque to increase the DISG torque.The low capacity starter is still closed.

By this way, can move starter, driving engine and disconnect-type clutch, to provide increasing the shorter response time of the drive train torque of wishing.And, during lacking the situation that capacity starts rolling motor, DISG can move the low capacity starter, therefore can extend the DISG range of operation.

Therefore, the method for Fig. 1-3 and Figure 37-40 is provided for the method for transmission system operation, comprising: the torque that response is wished moves driving engine and the motor torque that promotes vehicle is provided to transmission system greater than the threshold value torque of transmission system integrated actuating machine/electrical generator; Start rotational torque with the torque that response is wished less than the threshold value drive train torque and greater than threshold engine, move driving engine and do not provide motor torque to transmission system.By this way, transmission system can be in the situation that raise the efficiency operation and the shorter torque response time be provided.

In some instances, the method comprises that the threshold value torque of transmission system integrated actuating machine/electrical generator is the torque in the pre-determined torque scope of the torque rating of transmission system integrated actuating machine/electrical generator.The method comprises that threshold engine starting rotational torque is in the predetermined torque range of engine starting rotational torque.The method comprise the engine starting rotational torque be from driving engine from zero torque that turns to less than the speed of 250RPM.The method also be included in the operation driving engine and when not providing motor torque to transmission system with open mode operating transmission system disconnect-type clutch.The method comprises that also the torque of hope is based on driver requested torque.The method also is included in the operation driving engine and provides torque via transmission system integrated actuating machine/electrical generator to this transmission system when not providing motor torque to transmission system.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: the torque that response is wished is greater than the threshold value torque of transmission system integrated actuating machine/electrical generator, rotary engine and the motor torque of propelled vehicles is provided to transmission system; The torque that response is wished is less than the threshold value drive train torque and greater than threshold engine starting rotational torque, rolling motor and do not provide motor torque to transmission system; Start not rolling motor of rotational torque with the torque that response is wished less than threshold engine.The method comprises that also response battery charge will state rotates and move driving engine when the torque of wishing is started rotational torque less than threshold engine.

In one example, the method also comprise torque that response wishes greater than the threshold value torque of transmission system integrated actuating machine/electrical generator from the halted state rolling motor.The threshold value torque that the method comprises transmission system integrated actuating machine/electrical generator is less than the pre-determined torque away from the torque rating of transmission system integrated actuating machine/electrical generator.The method comprises that the transmission system disconnect-type clutch is in closure state when the motor torque that promotes vehicle is provided to transmission system.The method comprises that the transmission system disconnect-type clutch is in open mode when not providing to transmission system the motor torque that promotes vehicle.The method comprises that the threshold value torque of transmission system integrated actuating machine/electrical generator is along with vehicle working condition changes.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, so that when this transmission system disconnect-type clutch is in open mode with the first idling speed tickover, with executable instruction so as when this transmission system disconnect-type clutch to be in closure state with the second idling speed tickover, this second idling speed is greater than the first idling speed.

In one example, this Vehicular system also comprises extra executable instruction, is used for this transmission system disconnect-type clutch of drive train torque open and close that response is wished.This Vehicular system also comprises additional executable instruction, moves driving engine early spark timing and reduces engine air tolerance with the first idling speed with response.This Vehicular system also comprises additional executable instruction, postpones spark timing and increases engine air tolerance with spark timing and engine air tolerance with respect to the first idling speed operation driving engine the time.This Vehicular system also comprises additional executable instruction, and the torque of wishing with response provides motor torque greater than the threshold value torque of transmission system integrated actuating machine/electrical generator to change-speed box.This Vehicular system also comprises additional executable instruction, and the torque of wishing with response provides motor torque less than the threshold value torque of transmission system integrated actuating machine/electrical generator to change-speed box.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: with predetermined navigation idling speed operation driving engine, this navigation idling speed is less than basic engine idle rotating speed; With open this transmission system disconnect-type clutch at driving engine during with predetermined navigation idling speed operation so that driving engine and wheel are disengaged.The method comprises when the drive train torque of wishing is in the threshold range of transmission system integrated actuating machine/electrical generator (DISG) threshold value torque, and when DISG provides torque to wheel, with predetermined navigation idling speed operation driving engine, and vehicle moves when driving engine is in predetermined navigation idling speed.The method comprises that the torque of DISG threshold value is the maximum torque capacity of DISG.

In some instances, the method comprises that also spark timing is the spark timing that more shifts to an earlier date than under basic engine idle rotating speed.The method comprises that also the torque of response hope surpasses threshold value and withdraws from the navigation idling speed.The method comprises that also the torque that response is wished surpasses closed this transmission system disconnect-type clutch of threshold value.During the method comprises that this transmission system disconnect-type clutch is arranged on transmission system between driving engine and transmission system integrated actuating machine/electrical generator.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprise: response transmission system integrated actuating machine/electrical generator (DISG) lacks from the running state of the torque of static start the engine, with predetermined navigation idling speed operation driving engine, this navigation idling speed is rotated less than basic engine idle; With open the transmission system disconnect-type clutch at this driving engine during with predetermined navigation idling speed operation so that driving engine and wheel are disengaged.The method also is included in this driving engine the drive train torque of hope is provided to wheel by DISG with predetermined navigation idling speed operation the time.

In one example, the method comprises that also the response torque-demand withdraws from predetermined navigation idling speed operation driving engine greater than threshold value.The method comprises that driving engine separates with DISG.The method comprises that also this closure transmission system disconnect-type clutch accelerates to driving engine the speed of DISG before.The method is included in the spark ratio that offers driving engine when driving engine moves with predetermined navigation idling speed and more shifts to an earlier date when driving engine moves with basic idling speed.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, the torque of wishing with response enters sail mode.

In one example, this Vehicular system also comprises additional instruction, with response wish torque output enter sail mode in the scope of the threshold value torque of DISG torque capacity.This Vehicular system also comprises additional instruction, is not enough to start the engine and enters sail mode to respond available DISG torque.This Vehicular system also comprises additional instruction, withdraws from sail mode greater than threshold value with the torque that response is wished.This Vehicular system also comprises additional instruction, and withdrawing from sail mode with response increases engine speed.This Vehicular system also comprises additional instruction, when engine speed closed transmission system disconnect-type clutch during substantially in DISG speed.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide torque from driving engine to the transmission system that is connected in wheel; The driver requested torque that reduces with idling speed operation driving engine and response separates reasonable match; With constant vehicle accelerated speed is provided during the driver requested torque that reduces.By this way, transmission system can fuel saving when the transmission system braking being provided and improving torque response.

In some instances, the method comprises that also responding the driver requested torque that reduces opens the transmission system disconnect-type clutch.The method comprises that transmission system integrated actuating machine/electrical generator provides negative torque so that constant car retardation speed to be provided.The method comprises that this idling speed is the first idling speed, and the first idling speed is lower than the second idling speed, and driving engine moves with the second idling speed when driving engine is connected in transmission system.The method comprises that the driver requested torque that response reduces moves driving engine less than transmission system integrated actuating machine/electrical generator threshold value torque with idling speed.The threshold value torque that the method comprises transmission system integrated actuating machine/electrical generator is greater than 75% of the torque of specified transmission system integrated actuating machine/electrical generator.The method comprises that the torque that provides from driving engine is positive torque.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide torque from driving engine to the transmission system that is connected in wheel; The driver requested torque that reduces with idling speed operation driving engine and response separates reasonable match; Provide constant car retardation speed under the driver requested torque that reduces; And the driver requested torque of response increase accelerates to a speed with vehicle after with idling speed operation driving engine.The method comprises that this speed is the speed of transmission system integrated actuating machine/electrical generator.

In some instances, the method comprises that also this speed of response reaches the closed transmission system disconnect-type clutch of speed of transmission system integrated actuating machine/electrical generator.The method comprises that constant car retardation provides by transmission system integrated actuating machine/electrical generator.The method comprises the regeneration mode operation of transmission system integrated actuating machine/electrical generator to charge a battery.The method comprises that this idling speed is the first idling speed, and wherein this first idling speed is lower than the second idling speed, and driving engine moves with the second idling speed when driving engine is connected in transmission system.The method comprises that the driver requested torque that reduces of response moves driving engine less than the threshold value torque of transmission system integrated actuating machine/electrical generator with idling speed.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel (DMF) that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises executable non-transition instruction, in order to constant car retardation speed is provided with sail mode idling speed tickover the time.

In one example, this Vehicular system comprises that this sail mode idling speed is the speed less than the base idle rotating speed, provides this base idle rotating speed when driving engine is connected in DISG.This Vehicular system also comprises additional instruction, reduces driver requested torque with response and opens the transmission system disconnect-type clutch.This Vehicular system also comprises additional instruction, withdraws from the sail mode idling speed with the driver requested torque that response increases.This Vehicular system also comprises additional instruction, and the driver requested torque that increases with response increases engine speed from the sail mode idling speed.This Vehicular system comprises that this constant car retardation speed provides by DISG.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: the torque that response is wished provides torque via transmission system integrated actuating machine/electrical generator to transmission system; With the driver requested torque of response start the engine and dally this driving engine and do not provide motor torque to transmission system in the threshold range of engine starting rotational torque.By this way, the drive train torque of the hope of varying level can be used to the basis that enters or withdraw from sail mode.The method comprises that this threshold range is greater than 75% of engine starting rotational torque.The method comprises that the DISG torque offers turbine transformer.The method comprises that driving engine starts via transmission system integrated actuating machine/electrical generator.The method comprises that the transmission system disconnect-type clutch is in open mode when tickover.The method comprises that the torque of hope is based on driver requested torque.The method comprises that the engine starting rotational torque is that driving engine is accelerated to amount less than the torque of the speed of 250RPM from zero velocity.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: respond driver requested torque and provide torque via transmission system integrated actuating machine/electrical generator to transmission system; Respond driver requested torque start the engine and dally this driving engine and do not provide motor torque to transmission system in the threshold range of engine starting rotational torque; And respond the threshold value torque that driver requested torque is increased to transmission system integrated actuating machine/electrical generator driving engine is accelerated to transmission system integrated actuating machine/alternator speed.The method comprises that also responding engine reaches the closed transmission system disconnect-type clutch of transmission system integrated actuating machine/alternator speed.

In one example, the method provides motor torque to transmission system after also being included in closed transmission system disconnect-type clutch.The method comprises via the starter start the engine outside this transmission system integrated actuating machine/electrical generator.The method comprises via this transmission system integrated actuating machine/electrical generator start the engine.The method comprises with sail mode idling speed operation driving engine.The spark that the method is included in driving engine when moving with the sail mode idling speed provides to driving engine is than more shifting to an earlier date when driving engine moves with the base idle rotating speed.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, with the start the engine from the zero velocity accelerating vehicle and not via DISG, and this controller comprises executable instruction, and the torque of wishing with response surpasses engine starting rotation threshold value torque start the engine.

In one example, this Vehicular system also comprises additional instruction in order to do not provide motor torque to transmission system with navigation idling speed tickover.This Vehicular system also comprises additional instruction, and the torque of the hope that increases with response is from navigation idling speed boost engine.This Vehicular system also comprises additional instruction, reaches the closed transmission system disconnect-type clutch of DISG speed with responding engine speed.This Vehicular system also comprises additional instruction, to increase motor torque after closed transmission system disconnect-type clutch.This Vehicular system comprises that also the engine starting rotational torque is that driving engine is accelerated to amount less than the torque of the engine speed of 250RPM from zero velocity.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide positive torque via transmission system integrated actuating machine/electrical generator to transmission system; Move driving engine with speed control mode under idling speed; And the torque that response is wished accelerates to transmission system integrated actuating machine/alternator speed so that speed control is molded with driving engine.By this way, can control the turbine transformer torque during stepping on the accelerator pedal situation.The method comprises that the torque of hope is driver requested torque, and the transmission system disconnect-type clutch that is arranged between driving engine and transmission system integrated actuating machine/electrical generator is in open mode.

In one example, the method comprises that also responding engine speed meets or exceeds the closed transmission system disconnect-type clutch of transmission system integrated actuating machine/alternator speed.The method comprises that this idling speed is the sail mode idling speed.The method comprises that this sail mode idling speed is the speed lower than base engine idling speed.The driving engine spark timing of the driving engine spark timing that the method also is included in driving engine when moving with the sail mode idling speed with respect to base engine idling speed operation driving engine the time in advance.The method also is included in driving engine when moving with the sail mode idling speed with respect to reducing engine air tolerance with base engine idling speed operation driving engine.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide positive torque via transmission system integrated actuating machine/electrical generator to transmission system; Move driving engine with speed control mode under idling speed; The torque adjustment TCC that response is wished slides and with speed control mode, driving engine is accelerated to transmission system integrated actuating machine/alternator speed; And responding engine speed is mated the closed transmission system disconnect-type clutch of transmission system integrated actuating machine/alternator speed substantially.The method comprises that regulating the fluid power torque converter clutch slip comprises that increasing TCC slides.The method comprises that also response transmission system disconnect-type clutch is in closure state and reduces the TCC slip.

In some instances, the method comprises that this idling speed is the sail mode idling speed.The method comprises that this sail mode idling speed is the speed lower than base engine idling speed.The method comprises that the torque of this hope increases.The method comprises that the torque of this hope is increased to the threshold value torque greater than transmission system integrated actuating machine/electrical generator.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, the torque of wishing with response provides positive torque to change-speed box less than the engine starting rotational torque separately via DISG, and comprise instruction,, regulate engine speed and follow DISG speed during greater than the engine starting rotational torque and less than the DISG torque when the DISG torque.

In one example, this Vehicular system also comprises additional instruction, with closed transmission system disconnect-type clutch when engine speed equals DISG speed substantially.This Vehicular system also comprises additional instruction, to move driving engine with the torque master mode after closed transmission system disconnect-type clutch.This Vehicular system also comprises additional instruction, moves driving engine with speed control mode when regulating engine speed when following DISG speed.This Vehicular system also comprises additional instruction, so that the torque of hope to be provided via driving engine and DISG.This Vehicular system also comprises turbine transformer and TCC, and comprises additional instruction, increases TCC with the torque that responds this hope and slides.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide torque via driving engine and transmission system integrated actuating machine/electrical generator (DISG) to the transmission system that is connected in wheel; With enter sail mode during the situation of selecting, this sail mode comprises to transmission system to be provided DISG torque and tickover and not to provide motor torque to transmission system.The method comprises that the situation of this selection comprises that catalyst temperature is lower than threshold temperature.The method comprises that the situation of this selection comprises that the fuel vapour filter tank has stored the steam more than threshold quantity.The method comprises that the situation of this selection comprises that vacuum level is lower than the threshold value vacuum.The method comprises that the situation of this selection comprises that engine coolant temperature is lower than threshold temperature.The method comprises that the situation of this selection comprises that chaufeur selected the motion driving model.The method comprises driving engine with the idle running of sail mode idling speed, and this sail mode idling speed is than the low idling speed of base idle rotating speed when driving engine is connected in DISG.

The method of Fig. 1-3 and Figure 37-40 also is provided for the method for transmission system operation, comprising: provide torque via driving engine and transmission system integrated actuating machine/electrical generator (DISG) to the transmission system that is connected in wheel; Enter sail mode during the situation of selecting, this sail mode comprises to transmission system to be provided DISG torque and tickover and does not provide motor torque to transmission system; And responding engine sail mode early spark timing and reduce engine air tolerance.The method comprises that the situation of this selection comprises that catalyst temperature is lower than being equal to or greater than the threshold status of electric charge with the energy accumulating device state of charge.

In some instances, the method comprises that the situation of this selection comprises that the fuel vapour filter tank has stored the threshold status that steam and energy accumulating device state of charge more than threshold quantity are equal to or greater than electric charge.The method comprises that the situation of this selection comprises that vacuum level is equal to or greater than the threshold status of electric charge lower than threshold value vacuum and energy accumulating device state of charge.The method comprises that the situation of this selection comprises that engine coolant temperature is equal to or greater than the threshold status of electric charge lower than threshold temperature and energy accumulating device state of charge.The method comprises that the situation of this selection comprises that chaufeur selected motion driving model and energy accumulating device state of charge to be equal to or greater than the threshold status of electric charge.The method comprises driving engine with the idle running of sail mode idling speed, and this sail mode idling speed is than the low idling speed of base idle rotating speed when driving engine is connected in DISG.

The method of Fig. 1-3 and Figure 37-40 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of this driving engine via this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, to enter sail mode during the situation of selecting, wherein driving engine does not provide motor torque to change-speed box with the operation of sail mode idling speed, and wherein the DISG torque offers change-speed box, and wherein the situation of this selection comprises that the state of charge of storage battery is equal to or greater than the threshold value battery charge will.

In one example, this Vehicular system also comprises additional instruction, rinses with purging fuel vapors during this sail mode/fuel vapour.This Vehicular system also comprises additional instruction, to produce vacuum during this sail mode.This Vehicular system also comprises additional instruction, with the catalyst temperature that raises during this sail mode.This Vehicular system also comprises additional instruction, with the engine temperature that raises during this sail mode.This Vehicular system comprises that also this threshold value battery charge will is specified battery charge will.

With reference now to Figure 41-42,, Figure 41-42 illustrate the method for adaptive change (adapt) transmission system disconnect-type clutch Transmission Function.The method of Figure 41-42 can be stored in as executable instruction in the non-transient memory device of control 12 of Fig. 1-3.

4102, whether the situation that method 4100 judgements are used for transmission system disconnect-type clutch adaptive change (adaption) exists.Transmission system disconnect-type clutch adaptive change can come into effect in following situation: the transmission system disconnect-type clutch is in open mode, and after the transmission system disconnect-type clutch reaches predetermined running temperature, and after driving engine and DISG reach the operating mode of selection, for example minimum engine and DISG running temperature.In another example, transmission system disconnect-type clutch adaptive change can provide during face of fluid torque converter speed is greater than the transformer turbine speed condition.Exist if method 4100 judgements are used for the situation of transmission system disconnect-type clutch adaptive change, answer is "yes" and method 4100 proceeds to 4104.Otherwise answer is that "No" and method 4100 proceed to and withdraw from.

4104, if do not open TCC (TCC) and DISG rotation if having torque sensor or driving engine not to rotate with combustion method 4100.If torque sensor is arranged, torque measurement is not based on pump impeller speed.If engine starting rotates and burning, the method for Figure 42 does not require that DISG rotates.When requiring DISG when rotation, DISG rotates under its oneself power by the electric current that provided by energy accumulating device.In one example, DISG rotates with the speed less than 1000RPM, and therefore very little torque passes to change-speed box by turbine transformer.Therefore, DISG can be to provide the speed rotation less than the threshold quantity of the torque of arriving change-speed box by turbine transformer.After opening TCC, method 4100 proceeds to 4106.

4106, method 4100 judges whether driving engine rotates and burned air-fuel mixture.Take notice of in example, when engine speed during greater than threshold velocity driving engine can be judged as rotation and burned air-fuel mixture.If method 4100 judgement engine rotation and burned air-fuel mixtures, answer is "yes" and method 4100 proceeds to 4150.Otherwise answer is that "No" and method 4100 proceed to 4108

4150, method 4100 is with speed control mode operation driving engine.And car speed can be zero.When transmission system disconnect-type clutch adaptive change begin or driving engine driving engine can burned air-fuel mixture can start via starter or DISG the time.TCC is in open mode and utilizes engine air throttle, spark timing, cam timing, amount of valve lift, fuel to spray or other actuators, by the engine torque control engine speed.Method 4100 proceeds to 4152 after driving engine admission velocity master mode.

4152, method 4100 arrives engine speed modulation higher or lower than DISG speed.For example, if DISG speed is 400RPM, engine speed can be adjusted to 800RPM.Alternately, for example, if DISG speed is 800RPM, engine speed can be adjusted to 700RPM.Method 4100 proceeds to 4154 after regulating engine speed.

4154, method 4100 estimated engine torques and the motor torque of estimating is stored in memory device.Motor torque can be as U.S. Patent number 7,066, and 121 describedly estimate like that.Alternately, motor torque can be estimated by other known methods.For example, motor torque can be determined according to experience under the engine speed of selecting and engine load very much.This empirical data is stored in controller storage and by coming concordance list or function to be retrieved according to present engine speed and load.Method 4100 proceeds to 4156 after estimated engine torque quilt.

4156, method 4100 increases transmission system disconnect-type clutch applying pressure gradually.In one example, come the transmission system disconnect-type clutch to exert oneself by the dutycycle increase that increases transmission system disconnect-type clutch control signal.Higher dutycycle offers increase the oil pressure of transmission system disconnect-type clutch.The increase gradually of transmission system disconnect-type clutch applying pressure can pre-determine and be stored in memory device as transmission system disconnect-type clutch transfer function.Transmission system disconnect-type clutch transfer function is relevant with transmission system disconnect-type clutch input torque with transmission system disconnect-type clutch applying pressure, and output transmission system disconnect-type clutch output torque.By power-transfer clutch output torque and power-transfer clutch input torque index transfer function that use is wished, transmission system disconnect-type clutch transfer function also can be used for selecting transmission system disconnect-type clutch applying pressure.

When each transmission system disconnect-type clutch applying pressure increased, transmission system disconnect-type clutch applying pressure, engine speed and DISG speed were stored in memory device.Each disconnect-type clutch torque becomes new height (according to method 4130 and Figure 43, a plurality of levels of utilizing in order may be arranged to obtain the power-transfer clutch transfer function), this system needs to wait for that engine speed is stabilized in the engine speed of hope, and then new motor torque is estimated to be stored.In case the engine speed controller has been eliminated any interference that changes from the disconnect-type clutch torque, the motor torque that storage is estimated and the disconnect-type clutch torque of estimation are in order to use 460.Engine controller is asked the symbol of the slippage of the disconnect-type clutch pressure that can utilize estimation or capacity and disconnect-type clutch both sides, with suitably initiatively (proactively) increase or reduce motor torque, or for the variation of disconnect-type clutch pressure, engine control can only utilize controlled reset with the compensation engine speed.Method 4100 proceeds to 4158 after transmission system disconnect-type clutch applying pressure increases.

4158, method 4100 judges whether transmission system disconnect-type clutch application distribution figure uses fully.In one example, transmission system disconnect-type clutch application distribution figure only provides enough pressure (for example, 2Nm), to be used for a clutch segment and just to have begun to contact another clutch segment to transmit minimum torque.In another example, transmission system disconnect-type clutch application distribution figure can be converted to complete closure from opening fully.If whole pressure that method 4100 judgements are not transmission system disconnect-type clutch distribution graphs are used, answering is that "No" and method 4100 proceed to 4154.Otherwise answer is "yes" and method 4100 proceeds to 4160.

4160, when transmission system disconnect-type clutch transfer function is employed by increasing gradually transmission system disconnect-type clutch applying pressure, under the disconnect-type clutch pressure of each order, when engine speed is stabilized in lower time of speed of hope, method 4100 is relatively from the transmission system disconnect-type clutch estimated valve of transmission system disconnect-type clutch transfer function and the motor torque estimated valve of storage.for example, when after the transmission system disconnect-type clutch, input torque is 85N-m, for the disconnect-type clutch of the hope that realizes 50N-m illustrates torque, if the transmission system disconnect-type clutch dutycycle of transmission system disconnect-type clutch transfer function output 35% (corresponding transmission system disconnect-type clutch applying pressure or power of wishing), but the estimated transmission system disconnect-type clutch output torque of motor torque estimator is 45N-m, can judge, when transmission system disconnect-type clutch input torque is 85N-m, when the dutycycle when 35% is applied to the transmission system disconnect-type clutch, transmission system disconnect-type clutch transfer function has the error of 5N-m.In 4156 every group of operating modes using, can determine poor between the transmission system disconnect-type clutch torque wished and motor torque for transmission system disconnect-type clutch transfer function.When transmission system disconnect-type clutch applying pressure increases gradually, the transmission system disconnect-type clutch torque of being determined by transmission system disconnect-type clutch transfer function and the torque ratio of being estimated by driving engine after, method 4100 proceeds to 4162.

4162, the transmission system disconnect-type clutch torque that response is estimated by driving engine and poor according between the transmission system disconnect-type clutch torque of transmission system disconnect-type clutch transfer function expection, method 4100 is upgraded transmission system disconnect-type clutch transfer function in the project (entry) of selecting.In one example, if the transmission system disconnect-type clutch torque of being estimated by driving engine is different from poor between the transmission system disconnect-type clutch torque of estimating from transmission system disconnect-type clutch transfer function, the transmission system disconnect-type clutch torque of being estimated by driving engine replaces the transmission system disconnect-type clutch torque of the correspondence in transmission system disconnect-type clutch transfer function.By this way, the motor torque estimator can be the basis of regulating transmission system disconnect-type clutch transfer function.With the value of the inconsistent selection of transmission system disconnect-type clutch torque explained in the transmission system disconnect-type clutch torque wherein estimated by driving engine and transmission system disconnect-type clutch transfer function upgrade separate transfer function after method 4100 proceed to 4164, wherein.

If the disconnect-type clutch torque of estimating based on motor torque and the difference between disconnect-type clutch torque formerly are higher than threshold value, the adaptive change sequential can rerun, with at next chance test macro again, and can carry out the adaptive change sequential until this system by adaptive change successfully.Should be pointed out that the size that all adaptive change methods described herein can respond the error of transmission system disconnect-type clutch transfer function carries out more continually, quickly or immediately.

4164, method 4100 is used the transmission system disconnect-type clutch transfer function of correction with predetermined transmission system disconnect-type clutch pressure.For example, when requiring transmission system disconnect-type clutch pressure is regulated, transmission system disconnect-type clutch pressure is according to exporting in the 4162 transmission system disconnect-type clutch transfer functions of revising.Method 4100 withdraws from after the transmission system disconnect-type clutch pressure that output is revised.

4108, method 4100 judges whether to require to restart driving engine.If be stopped in 4108 engine rotation, if wish can restart.If require engine restart during transmission system disconnect-type clutch adaptive change, it is possible error occurring in the transmission system disconnect-type clutch transfer function that changes.Therefore do not carry out transmission system disconnect-type clutch adaptive change during engine restart.If method 4100 determines to wish engine restart, answer is "yes" and method 4100 proceeds to and withdraws from.Otherwise answer is that "No" and method 4100 proceed to 4110.

4110, method 4100 judges whether to exist the drive train torque sensor that detects drive train torque.If there is the drive train torque sensor in method 4100 judgements, answer is "yes" and method 4100 proceeds to 4130.Otherwise answer is that "No" and method 4100 proceed to 4112.

Should be understood that, in some instances, (for example keep separately as driving engine and DISG speed, the transmission system disconnect-type clutch slides) and engine controller with closed-loop start motor speed control work, based on turbine transformer (for example, 4112-4122) or torque sensor (for example, 4130-4138) transmission system disconnect-type clutch adaptive change can be with (for example, 4150-4164) the motor torque of estimation carries out simultaneously based on the torque of transmission system disconnect-type clutch.

4130, method 4100 is by sequentially increasing transmission system disconnect-type clutch applying pressure, and being in full open position from the transmission system disconnect-type clutch increases transmission system disconnect-type clutch pressure.Transmission system disconnect-type clutch pressure can increase with predetermined speed, or increases according to the transmission system disconnect-type clutch applying pressure of the predetermined selection of organizing.Method 4100 proceeds to 4132 after increasing transmission system disconnect-type clutch applying pressure.DISG can be with (for example, the speed feedback model operation of idling speed～700RPM) of speed with constant order.Alternately, DISG speed can be chosen as lower speed with energy saving.

4132, after transmission system disconnect-type clutch application program was completed, method 4100 was regulated the DISG torque according to the current transmission system disconnect-type clutch transfer function of carrying out adaptive change.Specifically, according to transmission system disconnect-type clutch transfer function, increase DISG torque via the transmission system disconnect-type clutch from the amount of torque that DISG passes to driving engine based on what estimate.After regulating the DISG torque, method 4100 proceeds to 4134.

4134, the amount of torque that method 4100 is relatively transmitted by the transmission system disconnect-type clutch and the transmission system disconnect-type clutch torque of order (amount of the transmission system disconnect-type clutch torque that for example, requires via transmission system disconnect-type clutch transfer function).In one example, according to the position of drive train torque sensor, the torque of transmission system disconnect-type clutch can be determined via following equation:

If the drive train torque sensor is at face of fluid torque converter:

If the drive train torque sensor is at transformer turbine/input shaft:

Wherein

T_{turbine} = \frac{N_{impeller}^{2} \cdot TR (\frac{N_{turbine}}{N_{impeller}})}{{cpc}^{2} (\frac{N_{turbine}}{N_{impeller}})} + T_{conv_clutch}

Wherein

The transmission system disconnect-type clutch torque of estimating, I _{Elec_machine}The inertia of DISG, N _ImpellerFace of fluid torque converter speed, T _SensorThe torque of being measured by torque sensor, T _{Elec_machine}The torque that is DISG illustrates, T _TurbineThe torque of transformer turbine, cpc is the turbine transformer capacity factor, N _TurbineFace of fluid torque converter speed, and T _{Conv_clutch}It is the TCC torque.

During the situation of transformer turbine speed less than face of fluid torque converter speed, TCC is opened, the transmission system disconnect-type clutch (is for example opened, the situation of wishing is stationary vehicle, pump impeller rotation～700RPM), accelerate to adapt to according to the motor torque that utilizes top equation and pump impeller the capacity factor (cpc) that turbine transformer is revised on ground.During face of fluid torque converter rotation, the transmission system disconnect-type clutch is opened and engine restart is not ordered situation, the torque of transmission system disconnect-type clutch is higher by command sequences ground.According to transmission system disconnect-type clutch stroke pressure or contact point (for example, when the transmission system disconnect-type clutch changes from open mode to closure state partly, the transmission system disconnect-type clutch is commanded to the point that at first the transmission system disconnect-type clutch sheet in the input and output side of transmission system disconnect-type clutch contacts), the torque of transmission system disconnect-type clutch by the DISG compensated torque to reduce the impact of vehicle steerability.In one example, according to current power-transfer clutch transfer function, the proportional increase of amount of the transmission system disconnect-type clutch torque of DISG torque and estimation.

In the situation that suitable compensation transmission system disconnect-type clutch and torque and the inertia between torque sensor, the transmission system disconnect-type clutch is estimated and can be compared with the observed reading from torque sensor.Transmission system disconnect-type clutch stroke pressure/contact point can be regulated adaptively.In one example, the transmission system disconnect-type clutch torque estimated by use of transmission system disconnect-type clutch transfer function replaces the value in transmission system disconnect-type clutch transfer function to regulate.Alternately, transmission system disconnect-type clutch transfer function can be regulated according to the error between the transmission system disconnect-type clutch torque of transmission system disconnect-type clutch transfer function and estimation.

If the transmission system disconnect-type clutch torque of order is less than or greater than the predetermined amount of torque of being transmitted by the transmission system disconnect-type clutch, the transmission system disconnect-type clutch torque value in this operation point transmission system disconnect-type clutch transfer function is adjusted to the transmission system disconnect-type clutch torque of measurement.

By this way, can regulate transmission system disconnect-type clutch transmission of torque function so that the estimation of the improved amount of torque that is transmitted by the transmission system disconnect-type clutch to be provided.Transmission system disconnect-type clutch transmission of torque function under current operating mode after evaluated and/or adaptive change method 4100 proceed to 4136.

4136, method 4100 judgement transmission system disconnect-type clutch applying pressure underdrive likely be disconnect-type clutch transmission of torque function whether part likely is assessed and/or regulate.If assess and/or regulate, answer is "yes" and method 4100 proceeds to 4138.Otherwise answer is that "No" and method 4100 turn back to 4130, reappraises under new operating mode in 4130 transmission system disconnect-type clutch applying pressures increases and transmission system disconnect-type clutch transmission of torque function.

4138, method 4100 is used the transmission system disconnect-type clutch transfer function of correction with predetermined transmission system disconnect-type clutch pressure.For example, when requiring to regulate transmission system disconnect-type clutch pressure, transmission system disconnect-type clutch pressure is according to exporting in the 4134 transmission system disconnect-type clutch transfer functions of revising.Method 4100 withdraws from after the transmission system disconnect-type clutch Output pressure of revising.

4112, as described in 4130, the state that method 4100 is opened fully from the transmission system disconnect-type clutch increases transmission system disconnect-type clutch applying pressure.At this moment car speed can be zero, and the order of transmission system disconnect-type clutch can increase gradually, to increase transmission system disconnect-type clutch applying pressure or power.Method 4100 proceeds to 4114 after regulating transmission system disconnect-type clutch applying pressure.

4114, as described in 4132, method 4100 is regulated the DISG torques.Method 4100 proceeds to 4116 after regulating the DISG torque.

4116, method 4100 is according to the speed of power train part and and the acceleration estimation torque of being transmitted by the transmission system disconnect-type clutch.The torque of being transmitted by the transmission system disconnect-type clutch in one example, can be estimated by following equation:

I_{impeller} \cdot {\overset{\cdot}{N}}_{impeller} = T_{clutch} + T_{elec_mach} - T_{conv}

Wherein:

T_{conv} = \frac{N_{impeller}^{2}}{{cpc}^{2} (\frac{N_{turbine}}{N_{impeller}})} + T_{conv_clutch}

The solution of transmission system disconnect-type clutch torque:

I wherein _ImpellerFace of fluid torque converter inertia, N _ImpellerFace of fluid torque converter speed, T _ClutchThe torque of transmission system disconnect-type clutch, T _{Elec_machine}The DISG torque, T _ConvBe the face of fluid torque converter torque, cpc is the turbine transformer capacity factor, N _TurbineTransformer turbine speed, and T _{Conv_clutch}It is the TCC torque.

During the situation of transformer turbine speed less than face of fluid torque converter speed, the turbine transformer by-pass clutch is opened, the transmission system disconnect-type clutch (is for example opened, the situation of wishing is stationary vehicle, pump impeller rotation～700RPM) is revised via top equation adaptively based on the capacity factor (cpc) of the turbine transformer of motor torque and pump impeller acceleration/accel.Pump impeller rotation, the transmission system disconnect-type clutch is opened and do not order the engine restart situation during, higher transmission system disconnect-type clutch torque on command timing.The torque of transmission system disconnect-type clutch is via the impact of DISG compensated torque with the minimizing driving.The torque of transmission system disconnect-type clutch based on transmission system disconnect-type clutch stroke pressure current estimation or the contact point of transmission system disconnect-type clutch.

For example, the DISG torque increases when the torque of transmission system disconnect-type clutch increases.In one example, the DISG torque with increase pro rata via the torque of transmission system disconnect-type clutch transmission.4118, this transmission system disconnect-type clutch torque compares with torque, speed and the transmission system disconnect-type clutch torque of calculating of the equation above the acceleration/accel utilization according to other.Then the contact point at 4118 transmission system disconnect-type clutch stroke pressure/transmission system disconnect-type clutchs upgrades adaptively.Method 4100 proceeds to 4118 after being estimated by the amount of the torque of transmission system disconnect-type clutch transmission.

4118, as described in 4134, the torque of being transmitted by the transmission system disconnect-type clutch that method 4100 is relatively estimated and the transmission system disconnect-type clutch torque from current transmission system disconnect-type clutch transfer function.This transmission system disconnect-type clutch torque that relatively can deduct by the transmission system disconnect-type clutch torque from hope estimation is carried out, and so that error to be provided, this error is the basis for adaptive change transmission system disconnect-type clutch transfer function.During greater than predetermined amount, the transmission system disconnect-type clutch torque of estimation replaces the value of the transmission system disconnect-type clutch in transmission system disconnect-type clutch transfer function, or is used for regulating the basis of transmission system disconnect-type clutch transfer function when error.Estimate compared by the amount of the torque of transmission system disconnect-type clutch transmission and transmission system disconnect-type clutch torque from transmission system disconnect-type clutch function after, method 4100 proceeds to 4120.

4120, the evaluated and/or adjusting of the method 4100 judgement part that whether all transmission system disconnect-type clutch transfer functions are wished under institute's transmission system disconnect-type clutch applying pressure likely.If so, answer is "yes" and method 4100 proceeds to 4122.Otherwise answer is that "No" and method 4100 turn back to 4112, and is evaluated under new operating mode in 4112 transmission system disconnect-type clutch applying pressures increases and transmission system disconnect-type clutch transfer function.

4122, method 4100 is applied to predetermined transmission system disconnect-type clutch pressure with the transmission system disconnect-type clutch transfer function of revising.For example, when requiring transmission system disconnect-type clutch pressure is regulated, transmission system disconnect-type clutch pressure is according to exporting in the 4118 transmission system disconnect-type clutch transfer functions of revising.Method 4100 proceeds to and withdraws from after the transmission system disconnect-type clutch pressure that output is revised.

In some instances, the transmission system disconnect-type clutch can (for example, Fig. 3) be combined with double-clutch automatic gearbox (DCT).In these were used, DISG can be used as torque master, mobilized the DCT that low torque level of power-transfer clutch operation under order to mobilize clutch torque measurement DCT start clutch torque at engine restart with during starting at this with basis.So gain and/or depart from and to start to upgrade in the clutch torque table at DCT, to mate the actual torque that inputs or outputs.Utilize DISG to start an example of clutch torque to comprise to detect DCT: when vehicle stop and braking are employed, for example ordered to postpone braking when unclamping when vehicle is in quiescence and operator's brake application or brake system, measured the torque of DCT engine clucht.This operation can be used for preventing that DCT from starting the variation in clutch torque to be delivered to wheel or to affect the vehicle acceleration.

In some instances, the transmission system disconnect-type clutch can be opened.The transmission system disconnect-type clutch of opening remove can affect DISG accurately detect DCT start the driving engine of ability of clutch torque or double mass flywheel (DMF) torque or biddability interact.DISG can be to have the speed feedback model operation of constant command speed, for example idling speed～700RPM.DISG speed can be chosen as lower speed with energy saving.DISG speed can be arranged to keep hydraulic pressure in automatic transmission with hydraulic torque converter (AT) by utilizing DISG to rotate the transmission fluid press pump.Operation DISG is to keep being applied to the transmission pressure of the DCT with hydraulic clutch relative with dried power-transfer clutch DCT.

In some instances, when learning that the DISG torque is estimated, DCT starts power-transfer clutch to open (for example, having zero torque capacity) fully.It is be used to the basis that DCT starts clutch torque of opening under the DISG speed that is recorded in order that the DISG torque is estimated.The DISG torque estimates it is DISG three phase current or from the function of the torque of the order of the inner looping of DISG speed feedback control.The DCT that opens start clutch torque after the DISG torque estimate to be determined in the torque range in hope DCT to start power-transfer clutch to be ordered be to move.The DCT that is used for the torque of each order in the torque range of hope starts clutch torque to determine from the DISG torque of determining in the torque of each order.The DCT that DCT starts the torque of power-transfer clutch error to be confirmed as opening starts clutch torque to measure and estimates poor between the torque of the torque that detects or order from the torque of DISG three phase current.When definite DCT started clutch torque, DISG can be to comprise the speed feedback model operation in internal torque loop.Torque is updated according to this observation DISG for DCT torque indicator or transfer function.

And the estimation of the changeability in actuating and the torque of transmitting via TCC can be the NF that can affect the bad steering performance of Vehicular system.If during engine restart due to order and the TCC torque of reality between error, the TCC torque activates improperly, the torque that passes to wheel can be less than torque and launch metrics and the driving performance possible deviation of hope.

DISG can be used as torque master work, with the torque of transmitting via TCC as the function measurement of the TCC torque of ordering during engine starting.The low torque level of transmitting via TCC during engine starting and to start can be for the gain of upgrading the TCC torque indicator and/or the basis of deviant, make the tabular value coupling actual be input to the output torque.

Operation DISG comprises with an example of the TCC torque of detect transmitting: when vehicle stop be and during when brake application (for example, when vehicle be in quiescence and operator's brake application) via DISG measurement TCC torque.Another example comprises the TCC that estimates when automatic transmission clutch connects change-speed box output for the ramp maintenance via the DISG transmission.Connect change-speed box and reduce the possibility that the TCC torque of transmitting is delivered to wheel.

The torque of transmitting via TCC when the transmission system disconnect-type clutch is opened can be determined more accurately, interacts because it removes driving engine, double mass flywheel or the biddability that can affect the DISG torque and estimate.When DISG be for the TCC transmission of torque estimate basic the time, (for example, under idling speed～700RPM), DISG can be with the operation of speed feedback model, with energy saving in the speed of low constant command.Also can regulate DISG speed to keep the hydraulic pressure in turbine transformer by rotate change-speed box with DISG.

In the situation that the applying pressure of selecting or power the TCC transfer function of the amount of torque that is transmitted by TCC is described can be according to DISG torque estimation and adaptive change.In one example, TCC is ordered fully and opens the output of (for example, having zero torque capacity) and turbine transformer and estimated based on the DISG electric current.The DISG current conversion becomes torque, and this torque is from the situation that deduct the torque that TCC is not ordered other the TCC order of opening fully to be determined.Therefore, torque offset is determined and is stored in memory device when TCC opens fully.Then, under the torque of each order when the DISG torque during from the DISG current estimation, TCC is ordered in the torque range of hope to increase gradually.TCC transmitting torque magnitude of error is determined from TCC open loop torque command (for example, TCC transfer function) with from the difference between the definite TCC torque of DISG three phase current.The TCC transfer function can be according to TCC transmitting torque error update.In one example, the part of each TCC transmitting torque error is added to the currency corresponding to the TCC transfer function of TCC transmitting torque error.

By this way, transmission system disconnect-type clutch transfer function can be revised, and makes the transmission system disconnect-type clutch to use more accurately.And transmission system disconnect-type clutch transfer function can be corrected and not occur significantly to move concerning chaufeur.

With reference now to Figure 43,, Figure 43 illustrates for upgrade the exemplary sequential of transmission system disconnect-type clutch transfer function according to the method for Figure 41 and 42.The sequential of Figure 43 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 43 represents the graph of relation of face of fluid torque converter speed and time.Y-axis represents that face of fluid torque converter speed and face of fluid torque converter speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The face of fluid torque converter speed that horizon 4302 expressions are wished.

The second figure from the top of Figure 43 represents the graph of relation of DISG torque and time.Y-axis represents that DISG torque and DISG torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 3rd figure from the top of Figure 43 represents that the transmission system disconnect-type clutch should be exerted oneself or the graph of relation of pressure and time.Y-axis represents that the transmission system disconnect-type clutch should be exerted oneself or pressure and should exert oneself or pressure increases along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₁₀₂Before, face of fluid torque converter speed is in the face of fluid torque converter speed 4302 of hope, and the DISG torque is in lower level.Transmission system disconnect-type clutch pressure also is in lower value.If DISG is in speed control, the amplitude of the variation of the DISG torque of the pump impeller speed of requirement maintenance hope can be machine-processed as the torque estimation, be similar to the mode that Figure 42 uses motor torque.

In time T ₁₀₂, transmission system disconnect-type clutch pressure-responsive increases and is increased by the torque of transmission system disconnect-type clutch transmission.The DISG torque does not increase, and is not passed the disconnect-type clutch transmission because transmission system disconnect-type clutch transfer function is illustrated in current bid value torque.Face of fluid torque converter speed remains on the face of fluid torque converter speed of hope, or do not require that in the closed-loop speed master mode DISG torque changes, and its expression estimates that the transmission system disconnect-type clutch transfer function of transmission system disconnect-type clutch torque is correct.Transmission system disconnect-type clutch pressure reduces after transmission system disconnect-type clutch pressure increases, so next time increasing of disconnect-type clutch pressure can be from known situation.

In time T ₁₀₃, response increases the requirement of the torque of being transmitted by the transmission system disconnect-type clutch, and transmission system disconnect-type clutch pressure increases for the second time.The DISG torque does not increase again, is the disconnect-type clutch transmission because transmission system disconnect-type clutch transfer function is illustrated in that current bid value torque is not transmitted.Because closed loop rpm controls, face of fluid torque converter speed reduces, or the DISG torque increases, and expression transmission system disconnect-type clutch transmission of torque function is being estimated the transmission system disconnect-type clutch torque that is passed.Transmission system disconnect-type clutch transfer function errors can be from torque sensor, the DISG electric current or definite at 4116 models of describing of disconnect-type clutch.Transmission system disconnect-type clutch transfer function is according to this regulating error.Specifically, in this example, the torque that is used for this estimation of output command can be reduced predetermined amount.Alternately, the output command that is used for the transmission system disconnect-type clutch can reduce predetermined amount.It is reduced after transmission system disconnect-type clutch pressure increases, thus transmission system disconnect-type clutch pressure increase can be from known situation next time.

In time T ₁₀₄, response increases the torque of being transmitted by the transmission system disconnect-type clutch, and transmission system disconnect-type clutch pressure increases for the third time.The DISG torque increases, because transmission system disconnect-type clutch transfer function is illustrated in current bid value torque by the transmission of transmission system disconnect-type clutch.Face of fluid torque converter speed increases, or by closed loop rmp control and regulation DISG torque, so that do not increase as transmission system disconnect-type clutch transfer function represent many, the transmission system disconnect-type clutch torque that expression transmission system disconnect-type clutch transfer function too high estimation is passed.Can determine transmission system disconnect-type clutch transfer function errors and according to this regulating error transmission system disconnect-type clutch transfer function.Specifically, in this example, the torque that is used for the estimation of output command increases predetermined amount.Alternately, the output command for the transmission system disconnect-type clutch can increase predetermined amount.It is reduced after transmission system disconnect-type clutch pressure increases, thus transmission system disconnect-type clutch pressure increase can be from known situation next time.

In time T ₁₀₅, response increases the torque of being transmitted by the transmission system disconnect-type clutch, and transmission system disconnect-type clutch pressure increases for the 4th time.The DISG torque increases, because transmission system disconnect-type clutch transfer function is illustrated in current bid value torque by the transmission of transmission system disconnect-type clutch.It is constant that face of fluid torque converter speed keeps, and correctly estimates the transmission system disconnect-type clutch torque that is passed with expression transmission system disconnect-type clutch transmission of torque function.Transmission system disconnect-type clutch transfer function is not conditioned, because error is less than the threshold error amount in the estimation of transmission system disconnect-type clutch transmission of torque.It is reduced after transmission system disconnect-type clutch pressure increases, thus transmission system disconnect-type clutch pressure increase can be from known situation next time.

With reference now to Figure 44,, Figure 44 goes out for upgrade or revise the exemplary sequential of transmission system disconnect-type clutch transfer function according to the method for Figure 42.The sequential of the clutch torque shown in Figure 43 can be applied to the sequential of Figure 42.The sequential of Figure 44 can be provided by the system of Fig. 1-3.

The first figure from the top of Figure 44 represents the graph of relation of engine speed and time.Y-axis represents that engine speed and engine speed increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.The engine speed that horizon 4402 expressions are wished.

The second figure from the top of Figure 44 represents the graph of relation of motor torque and time.Y-axis represents that motor torque and motor torque increase along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

The 3rd figure from the top of Figure 44 represents that the transmission system disconnect-type clutch should be exerted oneself or the graph of relation of pressure and time.Y-axis represents that the transmission system disconnect-type clutch should be exerted oneself or pressure and should exert oneself or pressure increases along the direction of Y-axis arrow.X-axis represents that time and time increase from the right side of the left lateral view of figure.

In time T ₁₀₆Before, engine speed is in the engine speed 4402 of hope, and motor torque is in lower level.Transmission system disconnect-type clutch pressure also is in lower value and orders the transmission system disconnect-type clutch to open position.Driving engine is in speed control mode and motor torque and determines from engine speed and engine load (for example the present engine air quality is divided by theoretical air inlet quality, driving engine can natural aspirate or super charge).DISG speed is adjusted to the speed different from the engine speed of hope with turbine transformer speed (not shown).

In time T ₁₀₆, transmission system disconnect-type clutch pressure-responsive increases and is increased by the torque of transmission system disconnect-type clutch transmission.DISG speed (not shown) remains unchanged and the engine speed of wishing remains unchanged when the transmission system disconnect-type clutch should firmly increase.Motor torque initially remains on constant level when the transmission system disconnect-type clutch is closed gradually.

In time T ₁₀₇, transmission system disconnect-type clutch pressure continuation increase and engine speed begin to be increased to the speed less than the engine speed of hope.The engine speed of response hope is poor with actual engine speed, engine control loop increase motor torque (for example, by opening engine air throttle).When the transmission system disconnect-type clutch should firmly increase (for example, at T ₁₀₇Very short time afterwards), the transmission system disconnect-type clutch torque of estimation be before time T 106 motor torque and in time T ₁₀₆Poor between motor torque afterwards.The transmission system disconnect-type clutch torque output transmission system disconnect-type clutch that response is wished should be exerted oneself or the transmission system disconnect-type clutch transfer function of pressure can be regulated according to the drive train torque of estimating.

In this example, the transmission system disconnect-type clutch transfer function project that obtains from the transmission system disconnect-type clutch torque value of the estimation determined under the transmission system disconnect-type clutch pressure of order can be updated to estimates the torque of transmission system disconnect-type clutch, if perhaps they change threshold quantity greater than torque from the transmission system disconnect-type clutch torque of estimating, renewal amount is the part of error.Transmission system disconnect-type clutch transfer function can be upgraded when the adaptive change process occurs or after this sequential.Should also be noted that when the transmission system disconnect-type clutch is closed in time T ₁₀₇Engine speed can increase rather than reduce.In this example, face of fluid torque converter speed is adjusted to the speed greater than engine speed, and when closed with convenient transmission system disconnect-type clutch, engine speed is in time T ₁₀₇Increase.

In time T ₁₀₈, the response requirement reduces the torque by the transmission of transmission system disconnect-type clutch, and transmission system disconnect-type clutch pressure reduces.The engine speed of reality is greater than the engine speed of hope after transmission system disconnect-type clutch pressure reduces.When the transmission system disconnect-type clutch torque of estimating was different from this project in transmission system disconnect-type clutch transfer function and is different from the transmission system disconnect-type clutch torque of estimation, transmission system disconnect-type clutch transfer function can be upgraded.

By this way, can upgrade the transfer function of describing the torque of being transmitted by the transmission system disconnect-type clutch.Therefore each transmission system disconnect-type clutch applying pressure can upgrade by this way in this transfer function, and whole transfer function can be aging and revise along with vehicle.

The method and system of Fig. 1-3 and Figure 41-44 also provides transmission system disconnect-type clutch adaptive change method, comprising: the driving engine in power transmission system of vehicle not when burned air and fuel the response torque sensor regulate should exerting oneself of transmission system disconnect-type clutch.By this way, can adaptive change transmission system disconnect-type clutch transfer function, to improve the vehicular drive performance.The method also comprises the transfer function of response torque sensor adaptive change transmission system disconnect-type clutch.The method comprises that also the response of the parts that respond transmission system changes the transfer function of transmission system disconnect-type clutch.

In some instances, the method comprises the application of regulating the transmission system disconnect-type clutch according to the applying pressure of the transmission system disconnect-type clutch of the situation of opening from the transmission system disconnect-type clutch.The method be included in the application of regulating the transmission system disconnect-type clutch during transmission system integrated actuating machine/electrical generator in rotation.The method be included in the application of regulating the transmission system disconnect-type clutch during change-speed box locking power-transfer clutch open.

The method and system of Fig. 1-3 and Figure 41-44 also provides transmission system disconnect-type clutch adaptive change method, comprise: rotate face of fluid torque converter with the speed less than a certain speed, this a certain speed is greater than passing to the threshold percentage of the torque of transformer turbine at face of fluid torque converter, this face of fluid torque converter is in vehicle transmission system; With driving engine in vehicle transmission system not when burned air and fuel the response torque sensor regulate should exerting oneself of transmission system disconnect-type clutch in vehicle transmission system.This transmission system disconnect-type clutch adaptive change method comprises that this speed is less than 700RPM.

In one example, transmission system disconnect-type clutch adaptive change method comprises by the adjusting of adaptive change transmission system disconnect-type clutch transfer function and should exert oneself.This transmission system disconnect-type clutch adaptive change method also comprises to be increased transmission system disconnect-type clutch order and regulates transmission system disconnect-type clutch transfer function according to the output of this torque sensor.This transmission system disconnect-type clutch adaptive change method comprises that also order opens TCC.This transmission system disconnect-type clutch adaptive change method comprises via transmission system integrated actuating machine/electrical generator rotates face of fluid torque converter.This transmission system disconnect-type clutch adaptive change method comprises transmission system integrated actuating machine/electrical generator to produce the speed rotation of change-speed box threshold value oil pressure, and this oil pressure remains on application state with transmission clutch.This transmission system disconnect-type clutch adaptive change method comprises that face of fluid torque converter is with the speed rotation greater than transformer turbine speed.

The method and system of Fig. 1-3 and Figure 41-44 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, regulates the estimation of the torque of transmitting by this transmission system disconnect-type clutch with the output of response torque sensor.This Vehicular system comprises driving engine not burned air and fuel.

In some instances, this Vehicular system comprises with certain speed and rotates DISG, passes to change-speed box lower than the threshold percentage of this speed DISG torque.This Vehicular system also comprises the turbine transformer of TCC and additional instruction, with in the estimation of regulating the torque by the transmission of transmission system disconnect-type clutch to open TCC.This Vehicular system also comprises additional instruction, to rotate the pump impeller of turbine transformer higher than the speed of transformer turbine.This Vehicular system also comprises additional instruction, is applied to the closing force of transmission system disconnect-type clutch with increase.

The method and system of Fig. 1-3 and Figure 41-44 also provides transmission system disconnect-type clutch adaptive change method, comprising: rotate face of fluid torque converter with First Speed; With speed control mode operation driving engine and to be different from the second speed rolling motor of First Speed; Estimate to regulate this transmission system disconnect-type clutch transfer function with response based on the torque of engine operating condition.The method comprises that the transmission system by engaging starter/generator rotates face of fluid torque converter.

In some instances, the method comprises that this second speed is greater than First Speed.The method comprises that this second speed is less than First Speed.The method comprises that engine operating condition is engine speed and engine load.The method comprises that also order increases should exerting oneself of transmission system disconnect-type clutch.The method also wraps in when order increases should exerting oneself of transmission system disconnect-type clutch and regulates motor torque so that engine speed is remained on second speed.

The method and system of Fig. 1-3 and Figure 41-44 also provides transmission system disconnect-type clutch adaptive change method, comprising: rotate face of fluid torque converter with First Speed; With speed control mode operation driving engine and to be different from the second speed rolling motor of First Speed; Open transmission system disconnect-type clutch storage motor torque output valve with response; Closed transmission system disconnect-type clutch gradually; And response is estimated based on the torque of engine operating condition and regulates transmission system disconnect-type clutch transfer function based on the difference between the torque estimation of transmission system disconnect-type clutch transfer function.

In one example, transmission system disconnect-type clutch adaptive change method comprises that First Speed is less than 700RPM.This transmission system disconnect-type clutch adaptive change method comprises that engine operating condition comprises engine speed and engine load.This transmission system disconnect-type clutch adaptive change method comprises based on the torque of engine operating condition estimating it is that motor torque deducts at the motor torque of opening transmission system disconnect-type clutch storage.This transmission system disconnect-type clutch adaptive change method is regulated engine speed by regulating motor torque during also being included in speed control mode.This transmission system disconnect-type clutch adaptive change method comprises via transmission system integrated actuating machine/electrical generator rotates face of fluid torque converter.This transmission system disconnect-type clutch adaptive change method comprises that transmission system integrated actuating machine/electrical generator rotates with the speed that produces change-speed box threshold value oil pressure, and this threshold value oil pressure remains on application state with transmission clutch.This transmission system disconnect-type clutch adaptive change method comprises that face of fluid torque converter rotates with the speed greater than transformer turbine speed.

The method and system of Fig. 1-3 and Figure 41-44 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, estimates to regulate the estimation of the torque of transmitting by this transmission system disconnect-type clutch with the responding engine torque.This Vehicular system comprises that the motor torque estimation is based on engine speed and load.

In some instances, this Vehicular system also comprises additional instruction, is used for certain speed rolling motor and DISG, passes to change-speed box lower than the threshold percentage of this speed DISG torque.This Vehicular system also comprises additional instruction, is used for rotating DISG with certain speed the speed that this speed is rotated less than engine starting.This Vehicular system also comprises additional instruction, to carry out the control of closed-loop start motor speed by regulating motor torque in the estimated engine torque.

The method and system of Fig. 1-3 and Figure 41-44 provides transmission system disconnect-type clutch adaptive change method, comprising: the driving engine in vehicle transmission system not when burned air and fuel the response torque sensor regulate should exerting oneself of transmission system disconnect-type clutch.The method also comprises the transfer function of response torque sensor adaptive change transmission system disconnect-type clutch.The method also comprises the transfer function of the response adaptive change transmission system disconnect-type clutch of the parts that respond transmission system.The method comprises that be the application that the situation opened is regulated the transmission system disconnect-type clutch based on increasing transmission system disconnect-type clutch applying pressure from transmission system disconnect-type clutch wherein.During the method is included in the application of regulating the transmission system disconnect-type clutch, transmission system integrated actuating machine/electrical generator is rotating.During the method is included in the application of regulating the transmission system disconnect-type clutch, change-speed box locking power-transfer clutch is opened.

The method and system of Fig. 1-3 and Figure 41-44 provides transmission system disconnect-type clutch adaptive change method, comprise: rotate face of fluid torque converter with the speed less than a certain speed, this a certain speed is greater than passing to the threshold percentage of the torque of transformer turbine at face of fluid torque converter, this face of fluid torque converter is in vehicle transmission system; With driving engine in vehicle transmission system not when burned air and fuel the response torque sensor regulate should exerting oneself of transmission system disconnect-type clutch in vehicle transmission system.This transmission system disconnect-type clutch adaptive change method comprises that this speed is less than 700RPM.

In some instances, this transmission system disconnect-type clutch adaptive change method comprises should exert oneself by adaptive change transmission system disconnect-type clutch transfer function adjusting transmission system disconnect-type clutch.This transmission system disconnect-type clutch adaptive change method also comprises to be increased transmission system disconnect-type clutch order and regulates transmission system disconnect-type clutch transfer function according to the output of torque sensor.This transmission system disconnect-type clutch adaptive change method comprises that also the order TCC opens.This transmission system disconnect-type clutch adaptive change method comprises via transmission system integrated actuating machine/electrical generator rotates face of fluid torque converter.This transmission system disconnect-type clutch adaptive change method comprises that transmission system integrated actuating machine/electrical generator rotates with the speed that produces change-speed box threshold value oil pressure, and this threshold value oil pressure remains on application state with transmission clutch.This transmission system disconnect-type clutch adaptive change method comprises that face of fluid torque converter rotates with the speed greater than transformer turbine.

The method and system of Fig. 1-3 and Figure 41-44 also provides a kind of Vehicular system, comprising: driving engine; The double mass flywheel that comprises the first side that is connected mechanically to this driving engine; The transmission system disconnect-type clutch that mechanically comprises the first side of the second side that is connected in this double mass flywheel; The transmission system integrated actuating machine/electrical generator (DISG) that comprises the first side of the second side that is connected in this transmission system disconnect-type clutch; Optionally be connected in the change-speed box of driving engine by this transmission system disconnect-type clutch; And controller, this controller comprises the executable instruction that is stored in non-transient memory device, regulates the estimation of the torque of transmitting by this transmission system disconnect-type clutch with the output of response torque sensor.

In one example, this Vehicular system comprises driving engine not burned air and fuel.This Vehicular system comprises with certain speed operation DISG, passes to change-speed box lower than the threshold percentage of this speed DISG torque.This Vehicular system also comprises turbine transformer and the additional instruction of TCC, to open TCC in the estimation of adjusting by the torque of transmission system disconnect-type clutch transmission.This Vehicular system also comprises additional instruction, to rotate the pump impeller of turbine transformer higher than the speed of transformer turbine.This Vehicular system also comprises additional instruction, is applied to the closing force of transmission system disconnect-type clutch with increase.

Above-described method and system can be known the torque at the diverse location of turbine transformer by inference.Figure 45-48 describes the example determine in the torque at face of fluid torque converter and turbine place.

With reference now to Figure 45,, Figure 45 illustrates the function of describing turbine transformer K factor.This turbine transformer K factor is relevant with the velocity ratio of face of fluid torque converter and turbine.The K factor of Figure 45 can be expressed as:

K = fn (\frac{N_{turbine}}{N_{impeller}})

Wherein K is turbine transformer K factor, N _TurbineTransformer turbine speed, and N _ImpellerFace of fluid torque converter speed, fn is the function of describing the K factor.So the torque at face of fluid torque converter can be described as:

T_{imp} = 1.558 \cdot \frac{{N^{2}}_{impeller}}{K^{2}}

T wherein _impThe face of fluid torque converter torque, and 1.558 are the conversion factors from ft-lbf to N-m.Upper relation of plane is applicable to velocity ratio＜1.

Present reference Figure 46, Figure 46 illustrate and describe as the function of face of fluid torque converter speed to the turbine transformer capacity factor of the function of the ratio of transformer turbine speed.Relevant with the K factor according to this capacity factor of following formula:

Capacity_Factor = \frac{1}{K^{2}}

Wherein Capacity_Factor is the turbine transformer capacity factor, and K is turbine transformer K factor recited above.The function of describing in Figure 46 can use together with the function of describing in Figure 47 and 48, thinks the behavior modeling of turbine transformer.Each project that forms the curve of Figure 46 can rule of thumb be determined and be stored in controller storage.

With reference now to Figure 47,, Figure 47 illustrates and describes as the function of face of fluid torque converter speed to the turbine transformer torque ratio (TR) of the function of the ratio of transformer turbine speed.The function of Figure 47 can use together with the function of the middle description of Figure 46 and Figure 48, thinks the turbine transformer behavior modeling.Each project that forms the curve of Figure 47 can rule of thumb be determined and be stored in controller storage.Function shown in Figure 47 comprises the Y-axis of expression turbine transformer torque ratio.X-axis represents that face of fluid torque converter is to the velocity ratio of turbine.Can see, between turbine transformer torque ratio and face of fluid torque converter are to the velocity ratio of turbine by inverse relation is arranged.TR can be described as:

TR = fn (\frac{N_{turbine}}{N_{impeller}})

TR turbine transformer torque ratio here, fn are the functions of describing this torque ratio, N _TurbineTransformer turbine speed, and N _ImpellerFace of fluid torque converter speed.The turbine transformer torque ratio is relevant with face of fluid torque converter speed:

T _turbine＝T _impeller·TR

Or

Tturbine = 1.558 \cdot \frac{{N^{2}}_{impeller}}{K^{2}} \cdot TR

With reference now to Figure 48,, Figure 48 illustrates a function, and it multiply by the turbine transformer torque ratio of Figure 47 to the turbine transformer capacity factor of function representation Figure 46 of the ratio of transformer turbine speed as face of fluid torque converter speed.

The function that Figure 48 describes can use together with the function of describing in Figure 46 and 47, is the behavior modeling of turbine transformer.Each project that forms the curve of Figure 48 can rule of thumb be determined and be stored in controller storage.Function shown in Figure 48 comprises that expression turbine transformer capacity factor multiply by the Y-axis of turbine transformer torque ratio.Y-axis represents that face of fluid torque converter is to the velocity ratio of turbine.

In one example, the function of Figure 46 is multiply by face of fluid torque converter velocity squared by pump impeller speed to ratio index and its output of transformer turbine speed with turbine transformer, so that the estimation of face of fluid torque converter speed to be provided.The function of Figure 47 is with the ratio index of transformer turbine speed and its output being taken advantage of by the function in Figure 48 by pump impeller speed with turbine transformer, so that the estimation of transformer turbine torque to be provided.The torque of turbine transformer both sides is poor between face of fluid torque converter torque and transformer turbine torque.Certainly, can also determine that turbine transformer is by the inverted running of pump impeller speed and transformer turbine speed.

Therefore, the operation of turbine transformer can be estimated according to the model that comprises the function that Figure 45-48 describes.Specifically, turbine transformer can provide the estimation of the estimation of face of fluid torque converter torque or transformer turbine torque as DISG torque or wheel torque, because turbine transformer is connected mechanically to DISG and change-speed box.

Just as skilled in the art will understand, the method for describing in Fig. 4-44 can represent one or more in any amount of processing policy, such as event driven, drives interrupts, multitask, multithreading etc.Therefore, shown various steps or function can with shown in order carry out, carry out simultaneously, or can omit in some cases.Equally, in order to realize purpose described here, feature and advantage, the order of processing not necessarily but provides in order easily to illustrate and to describe.Although do not offer some clarification on, it will be recognized by those skilled in the art that the action shown in one or more or function can repeatedly carry out according to specific policy used.

Finish this specification sheets at this.Those skilled in the art read many variations and the modification that this specification sheets will expect not breaking away from Spirit Essence of the present invention and scope.For example, I3, I4, I5, V6, V8, V10 and the V12 driving engine with natural fuels, gasoline, diesel oil or alternative fuel configuration operation can use the present invention with the embodiment advantage.

Claims

1. the method for an operating hybrid vehicle transmission system comprises:

Responding engine starts the TCC that requires open closed; With

The face of fluid torque converter speed that response is wished is regulated the speed of transmission system integrated actuating machine/electrical generator (DISG).

2. method according to claim 1 is wherein regulated described DISG speed and is comprised as the function of the face of fluid torque converter torque of transformer turbine speed and hope and regulate described DISG speed.

3. method according to claim 2, the face of fluid torque converter torque of wherein said hope is based on driver requested torque.

4. method according to claim 1, wherein said DISG speed is regulated by regulating the DISG torque.

5. method according to claim 4, also comprise the described DISG torque of transmission system disconnect-type clutch torque adjustment that response is estimated.

6. method according to claim 5, the transmission system disconnect-type clutch torque of wherein said estimation is based on transmission system disconnect-type clutch application force.

7. method according to claim 1, also be included in when regulating described DISG speed with the described DISG of speed control mode operation.

8. the method for an operating hybrid vehicle transmission system comprises:

Responding engine starts the TCC that requires open closed;

With speed control mode operating transmission system integrated actuating machine/electrical generator (DISG);

The face of fluid torque converter speed that response is wished is regulated DISG speed; And

By closed transmission system disconnect-type clutch start the engine.

9. method according to claim 8 wherein responds the transmission system disconnect-type clutch partly closed transmission system disconnect-type clutch of should exerting oneself, and wherein should firmly estimate the torque of transmission system disconnect-type clutch according to the transmission system disconnect-type clutch.

10. method according to claim 9, wherein the transmission system disconnect-type clutch torque adjustment DISG torque of response estimation.