CN100398369C - Hybrid power vehicle and its control method - Google Patents
Hybrid power vehicle and its control method Download PDFInfo
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- CN100398369C CN100398369C CNB2004100864626A CN200410086462A CN100398369C CN 100398369 C CN100398369 C CN 100398369C CN B2004100864626 A CNB2004100864626 A CN B2004100864626A CN 200410086462 A CN200410086462 A CN 200410086462A CN 100398369 C CN100398369 C CN 100398369C
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Abstract
When the driving requirement power Pr<*> set by the acceleration pedal opening Acc is larger the augment lower limit value P3 smaller than the engine stopping decision value P2 and less than the augment upper limit value P4 which is larger than the decision value P2 and smaller than the starting decision value P1, the augment power Pa is set to augment the charging and discharging requirement power Pb<*> according to the driving requirement power Pr<*> (S220, S230). The engine requirement power Pe<*> (S240) is calculated to control an engine and two motors by using the charging and discharging requirement power Pb<*>. When the driving requirement power Pr<*> is less than the value P3, the engine (S150) is stopped, and the motors are used for driving to run (S170-S190). When the driving requirement power Pr<*> is larger than the value P4, the augment power Pa is not set, the motor requirement power Pe<*> is calculated to control the engine and the two motors.
Description
Technical field
The present invention relates to a kind of hybrid vehicle and control method thereof, in more detail, relate to a kind of combustion engine and can be of having to the hybrid vehicle and the control method thereof of the electrical motor of axletree outputting power.
Background technology
In the past, as this hybrid vehicle, proposed a kind of planetary wheel that has driving engine, the bent axle of this driving engine and planetary gear carrier bonded assembly are linked to each other gear ring simultaneously with axle drive shaft with the axletree mechanical connection, to the 1st motor of this planetary sun gear input and output power, to the 2nd motor of axle drive shaft input and output power and can with the technology (for example, Japanese kokai publication hei 10-326115 communique etc.) of the storage battery of the 1st motor and the 2nd motor Change Power.In this hybrid vehicle, to obtain the driving power of requirement according to acceleration pedal aperture and the speed of a motor vehicle, simultaneously, obtain according to the residual capacity (SOC) of storage battery and to discharge and recharge power, based on the driving power of this requirement with discharge and recharge power, obtain vehicle requirement power and set output from driving engine.For example, vehicle requires power hour, the running of shutting engine down, travel to exporting by power with axletree bonded assembly axle drive shaft from the 2nd motor, when vehicle requires power big, in the time of engine running, will be from the power of this driving engine along with charging and discharging of accumulator be carried out moment of torsion (torque) conversion, and by travelling to axle drive shaft output.
Summary of the invention
In hybrid vehicle, be not limited to above-mentioned example in the past, the engine running walking of walking when carrying out mostly only walking and ruing an engine by the motor of walking from the power of motor, in hybrid vehicle so, when the starting of judgement driving engine and running stop, having a little hysteresis.Particularly, the starting of driving engine and running stop to require power to judge according to the vehicle that vehicle requires the time, according to operative condition, the stopping and can frequently taking place repeatedly of the starting of driving engine and running.At this moment, because charging and discharging of accumulator repeats continually, and under inefficient operation point, the stopping of the starting of driving engine and running carries out continually repeatedly, can cause the reduction of the efficiency of car load.
A purpose of hybrid vehicle of the present invention and control method thereof be to make the starting of combustion engine and running stop can frequently not take place.Another purpose of hybrid vehicle of the present invention and control method thereof is to improve the efficiency of car load.
At least one in to achieve these goals of hybrid vehicle of the present invention and control method thereof adopted following technical scheme.
Hybrid vehicle of the present invention is to have combustion engine and can wherein, have to the hybrid vehicle of the electrical motor of axletree outputting power: use the power generation assembly from least a portion generating of the power of described combustion engine; Make the electrical storage device that discharges and recharges of the exchange of electric power of described power generation assembly and described electrical motor; And control setup, described control setup has: according to the operating and setting of chaufeur walking usefulness require driving power require the driving power configuration part, the power setting portion that discharges and recharges that discharges and recharges power that this electrical storage device is discharged and recharged according to the setting state of described electrical storage device, the driving power that requires according to described setting is set the revisal power setting portion of revisal (correction) power, the driving power that requires according to described setting, the vehicle that the revisal power setting vehicle that discharges and recharges power and described setting of described setting requires requires the vehicle of power to require power setting portion, require power to judge the running of described combustion engine and the running that running stops-stopping detection unit and when being judged to be running according to the vehicle of this setting by described running-stop detection unit, exporting described vehicle requirement power from described combustion engine when with the described mode that requires driving power to described axletree output, control described combustion engine and described power generation assembly and described electrical motor, and be judged to be running by described running-stop detection unit when stopping, when described internal combustion engine operation is stopped with the described mode that requires driving power to described axletree output, control the control part of described combustion engine and described power generation assembly and described electrical motor.
In hybrid vehicle of the present invention, according to the operating and setting of chaufeur walking usefulness require driving power the time, according to the setting state of electrical storage device electrical storage device is discharged and recharged the power that discharges and recharges of usefulness, and set revisal power according to the driving power of setting that requires.And, according to the revisal power of setting that discharges and recharges power and setting that requires driving power and setting, set the vehicle requirement power that vehicle requires, require power to judge that the running and the running of combustion engine stop according to the vehicle of setting.In this is judged, when being judged to be internal combustion engine operation, when combustion engine output vehicle requires power, to require the mode of driving power to axletree output, controlling combustion engine and using from the power generation assembly of at least a portion generating of the power of combustion engine and can be to the electrical motor of axletree outputting power, in judgement, when the running that is judged to be combustion engine stops, when the running that makes combustion engine stops so that require mode controlling combustion engine and power generation assembly and the driving engine of driving power to axletree output.Require power owing to use the revisal power of the driving power of reflecting requirement to set vehicle, require power to judge the starting of combustion engine and stopping of running according to this vehicle, thus by revisal power can make the starting of combustion engine and running stop can not carry out repeatedly continually.As a result, the efficiency of car load is improved.The control of running halted state control that stops that being controlled to be of the combustion engine when stopping as the running that is judged to be combustion engine in addition, for example kept fuel injection control etc., that keep combustion engine.
In hybrid vehicle like this of the present invention, described running-stop detection unit can more than described vehicle requirement power to the 1 regulation power (in this application " more than " comprise its fwd given figure) proceed to the 2nd regulation power littler when above, be judged to be the running of described combustion engine than the 1st regulation power, and require from described vehicle power to not enough (less than) when described the 2nd regulation power proceeds to not enough described the 1st regulation power, the running that is judged to be described combustion engine stops; Described revisal power setting portion can be between the on-stream period that described running-stop detection unit being judged to be described combustion engine, described when requiring the driving power 3rd regulation power littler above than described the 2nd regulation power, so that the mode that described vehicle requires power to surpass described the 2nd regulation power is set described revisal power, and between the on-stream period that described running-stop detection unit being judged to be described combustion engine, described when requiring not enough described the 3rd regulation power of driving power, when described running-stop detection unit being judged to be the running stopping period of described combustion engine, be 0 value perhaps with described revisal power setting.At this moment, described revisal power setting portion can be between the on-stream period that described running-stop detection unit being judged to be described combustion engine, the described driving power that requires is that the 3rd regulation power littler than described the 2nd regulation power is when above, so that the mode that described vehicle requires power to become the 4th regulation power big and littler than described the 1st regulation power than described the 2nd regulation power is set described revisal power.In addition, described revisal power setting portion also can be between the on-stream period that described running-stop detection unit being judged to be described combustion engine, the described driving power that requires is when described the 3rd regulation power is above, so that the described mode that discharges and recharges power and become the 5th regulation power following (" following " comprises its fwd given figure in this application) is set described revisal power.
In addition, in hybrid vehicle of the present invention, what described vehicle required that power setting portion also can be according to the power of a bigger side in the revisal power that discharges and recharges power and described setting of described setting and described setting requires driving power to set described vehicle to require power.
In addition, in hybrid vehicle of the present invention, described power generation assembly can be connected with axle drive shaft on being connected to described axletree with the output shaft of described combustion engine, along with the input and output of electric power and power, can with from least a portion of the power of this combustion engine to this axle drive shaft output.At this moment, described power generation assembly also can have with the output shaft of described combustion engine and described axle drive shaft and the 3rd these 3 axle be connected, according to importing by the residue axle by any 2 inputs in these 3 axles with to the power of its output (relative this any 2 input and output), with power and to 3 shaft type power input and output portions of its output; With with power by described the 3rd input with to the electrical generator of its output.In addition, described power generation assembly also can for: have on the output shaft that is installed to described combustion engine the 1st rotor be installed to described axle drive shaft on the 2nd rotor, the electric power that produces along with the relative revolution of relative the 1st rotor of the 2nd rotor, electromagnetic action by the 1st rotor and the 2nd rotor input and output, will be from least a portion of the power of this combustion engine electrical generator to this axle drive shaft output.
The control method of hybrid vehicle of the present invention, wherein, this hybrid vehicle has combustion engine, can be to the electrical motor of axletree outputting power, use is from the power generation assembly of at least a portion generating of the power of described combustion engine, discharged and recharged electrical storage device with the exchange of electric power of this power generation assembly and described electrical motor, have following steps: (a) according to the driving power that requires of the operating and setting of chaufeur walking usefulness, (b) will be according to the state of described electrical storage device, setting discharges and recharges this electrical storage device the power that discharges and recharges of usefulness, (c) set revisal power according to the driving power that requires of described setting, (d) setting vehicle requires power as the power that comprises the revisal power summation that discharges and recharges power and described setting that requires driving power and described setting of described setting, (e) vehicle according to described setting requires power, running and the running of judging described combustion engine stop, (f) be that described combustion engine is when being in operative condition in this result of determination, make the described driving power that requires control described combustion engine and described power generation assembly and described electrical motor exporting described vehicle requirement power from described combustion engine when to the mode of described axletree output, in described result of determination is that described combustion engine is in running during halted state, makes the described driving power that requires control described combustion engine and described power generation assembly and described electrical motor to the mode of described axletree output when stopping with described internal combustion engine operation.
In the control method of hybrid vehicle of the present invention, according to the operating and setting of chaufeur walking usefulness require driving power the time, electrical storage device is discharged and recharged the power that discharges and recharges of usefulness according to the setting state of electrical storage device, and set revisal power according to the driving power of setting that requires, and, the vehicle that requires according to the revisal power setting vehicle of setting that discharges and recharges power and setting that requires driving power and setting requires power, requires power to judge that the running and the running of combustion engine stop according to the vehicle of setting.When in this judgement, being judged to be internal combustion engine operation, when requiring power from combustion engine output vehicle, will require the mode of driving power to axletree output, controlling combustion engine and using from the power generation assembly of at least a portion generating of the power of this combustion engine and can be to the electrical motor of axletree outputting power, when the running that is judged to be combustion engine in judgement stops, when the running that makes combustion engine stops so that require mode controlling combustion engine and power generation assembly and the driving engine of driving power to axletree output.That is, use the revisal power setting vehicle of the driving power of reflecting requirement to require power, and require power to judge the starting of combustion engine and stopping of running according to this vehicle.Therefore, by revisal power, can make the starting of combustion engine and running stop can not carry out repeatedly continually.As a result, the efficiency of car load is improved.
In the control method of so hybrid vehicle of the present invention, described step (e) also can be: proceeding to the running that the 2nd regulation power littler than the 1st regulation power is judged to be described combustion engine when above more than described vehicle requires power to the 1 regulation power, when requiring power to not enough described the 2nd regulation power to proceed to not enough described the 1st regulation power from described vehicle, the running that is judged to be described combustion engine stops, described step (c) also can be: be judged to be between the on-stream period of described combustion engine by described step (e), the described driving power that requires is the 3rd regulation power littler than described the 2nd regulation power when above, sets described revisal power in the mode that described vehicle requires power to surpass described the 2nd regulation power; Between the on-stream period that is judged to be described combustion engine by described step (e), described when requiring not enough described the 3rd regulation power of driving power, when perhaps being judged to be the running stopping period of described combustion engine, be 0 value with described revisal power setting by described step (e).At this moment, described step (c) also can be: between described step (e) is judged to be the on-stream period of described combustion engine, the described driving power that requires is the 3rd regulation power littler than described the 2nd regulation power when above, sets described revisal power in the mode that described vehicle requires power to become the 4th regulation power big and littler than described the 1st regulation power than described the 2nd regulation power.Also at this moment, described step (c) also can be: be judged to be between the on-stream period of described combustion engine in described step (e), the described driving power that requires is when described the 3rd regulation power is above, so that the described power that discharges and recharges becomes the following mode of the 5th regulation power and sets described revisal power.
In addition, in the control method of hybrid vehicle of the present invention, described step (b) also can be: require driving power to set described vehicle to require power according to the power of a bigger side in the revisal power that discharges and recharges power and described setting of described setting and described setting.
The accompanying drawing summary
Fig. 1 is the pie graph of the formation of hybrid vehicle 20 that one embodiment of the invention schematically is shown;
Fig. 2 illustrates the diagram of circuit of the hybrid power of embodiment with drive controlling routine one example of electronic control unit 70 execution;
Fig. 3 illustrates to require the instruction diagram of torque setting with chart one example;
Fig. 4 is the instruction diagram that the magnitude relationship of the decision content P1～P4 that uses among the embodiment is shown;
Fig. 5 is the instruction diagram that the revolution key element of the power distribution integration mechanism 30 when illustrating the motor rotation pattern is carried out alignment chart one example of mechanics explanation;
Fig. 6 is actuating wire (driving line) example and the target setting rotational speed N E that driving engine 22 is shown
*With target torque Te
*The instruction diagram of state;
Fig. 7 is the instruction diagram that the revolution key element of the power distribution integration mechanism 30 when illustrating torque conversion operation mode or charge-discharge drive mode is carried out alignment chart one example of mechanics explanation;
Fig. 8 is rotational speed N e that the rotational speed N m2 of motor M G2 or driving engine 22 are shown, drive and require power P r
*, driving engine requires power P e
*, discharge and recharge and require power P b
*Time change the instruction diagram of an example;
Fig. 9 is the pie graph of the formation of hybrid vehicle 120 that variation schematically is shown;
Figure 10 is the pie graph of the formation of hybrid vehicle 220 that variation schematically is shown.
Concrete form of implementation
Below, the preferred embodiments of the present invention are described.Fig. 1 is the pie graph of the formation of hybrid vehicle 20 that the power take-off implement that is mounted with one embodiment of the invention schematically is shown.The hybrid vehicle 20 of embodiment is as diagram, has driving engine 22, by shock absorber (energy disperser) 28 with power distribution integration mechanism 30 as bent axle 26 bonded assemblys 3 shaft types of the output shaft of driving engine 22, the motor M G1 that can generate electricity with power distribution integration mechanism 30 bonded assemblys, with power distribution integration mechanism 30 bonded assemblys, gear ring axle 32a as axle drive shaft on the reducing gear 35 of installing, with this reducing gear 35 bonded assembly motor M G2, control the hybrid power electronic control unit 70 of whole power take-off implement.
Power distribution integration mechanism 30 have external tooth gear sun gear 31, with the gear ring 32 of the internal-gear of these sun gear 31 coaxial settings, with sun gear 31 ingears simultaneously with a plurality of miniature gearss 33 of gear ring 32 ingears, a plurality of miniature gearss 33 are kept the planetary gear carrier 34 of rotations freely or revolution, sun gear 31 and gear ring 32 and planetary gear carrier 34 constitute the sun and planet gear that carries out differential action as the revolution key element.Power distribution integration mechanism 30 is, planetary gear carrier 34 is connected with the bent axle 26 of driving engine 22, sun gear 31 is connected with motor M G1, reducing gear 35 is connected with gear ring 32 by gear ring axle 32a, when motor M G1 brings into play function as electrical generator, import from planetary gear carrier 34, power from driving engine 22 is allocated in sun gear 31 sides and gear ring 32 sides according to its gear ratio, and when motor M G1 brings into play function as electrical motor, import from planetary gear carrier 34, from the power of driving engine 22 with from sun gear 31 inputs, export to gear ring 32 sides from the comprehensive back of the power of motor M G1.From gear ring 32, by gear mechanism 60 and differential gear 62, finally drive wheel 63a, the 63b to vehicle exports to the power of gear ring 32 output.
Motor M G1 and motor M G2 any one when having the generator drive of can be used as, can be used as the structure of electric motor driven known synchronous generator-motor, by inverter 41,42, carry out the exchange of electric power with storage battery 50. Inverter 41,42 and storage battery 50 bonded assembly electric wireline 54 are made of each inverter 41,42 shared positive electrode bus and negative pole bus, and the electric power that one of motor M G1, MG2 generating produces can be by another electrical consumption.Therefore, storage battery 50 discharges and recharges according to the electric power or the power shortage of motor M G1, any one generation of MG2.In addition, as obtain the balance of electric power revenue and expenditure by motor M G1, MG2, then storage battery 50 does not does not just discharge and recharge.Motor M G1, MG2 each by motor with electronic control unit (below be called motor ECU) 40 drive controlling.To motor ECU40 input drive controlling motor M G1, the necessary signals that MG2 uses, for example import the signal of the rotary position detecting sensor of using from the rotary position of the rotor that detects motor M G1, MG2 43,44 or go out by not shown current sensor senses, be applied to phase current on motor M G1, the MG2 etc., by motor ECU40 to inverter 41,42 output switch control signals.Motor ECU40 and hybrid power are with electronic control unit 70 connection of communicating by letter, according to from hybrid power the time with control signal drive controlling motor M G1, the MG2 of electronic control unit 70, as required, the data relevant with the operative condition of motor M G1, MG2 are exported with electronic control unit 70 to hybrid power.
Hybrid power is made of the microprocessor that with CPU72 is the center with electronic control unit 70, except CPU72, also has the ROM74 of memory handler, the RAM76 of temporary memory data, not shown input and output port and communication port.Ignition signal from ignition lock 80, shift position SP from the shift position sensor 82 of the operating position that detects speed change (gear shift) bar 81, acceleration (pedal) aperture Acc from the accelerator pedal position sensor 84 of the depression amount that detects acceleration pedal 83, from the brake pedal position BP of the brake pedal position sensor 86 of the depression amount that detects brake pedal 85, from the vehicle velocity V of car speed sensor 88 etc. by input port to hybrid power with electronic control unit 70 inputs.Hybrid power, is connected with Engine ECU 24 or motor ECU40, storage battery ECU52 by communication port as aforementioned with electronic control unit 70, carries out the exchange of various control signals or data with Engine ECU 24 or motor ECU40, storage battery ECU52.
So the hybrid vehicle 20 of the embodiment of structure based on chaufeur to the depression amount of acceleration pedal 83 corresponding acceleration pedal aperture Acc and vehicle velocity V, calculating should be to the moment of torsion that requires as the gear ring axle 32a of axle drive shaft output, running control driving engine 22 and motor M G1 and motor M G2 will be requiring the corresponding demanded driving force of wanting of moment of torsion to export to gear ring axle 32a with this.Running control as driving engine 22 and motor M G1 and motor M G2, have: when turning round control driving engine 22 in mode from driving engine 22 output with the power of wanting demanded driving force to match, carry out torque conversion by power distribution integration mechanism 30 with motor M G1 and motor M G2 from the whole of power of driving engine 22 output, with to the mode drive controlling motor M G1 of gear ring axle 32a output and the torque conversion operation mode of motor M G2; Or the power that required electric power sum matches with wanting discharging and recharging of demanded driving force and storage battery 50 is when turning round control driving engine 22 in the mode from driving engine 22 output, along with discharging and recharging of storage battery 50, a part of from the whole of the power of driving engine 22 output or its along with the torque conversion of being undertaken by power distribution integration mechanism 30 and motor M G1 and motor M G2, to want mode drive controlling motor M G1 that demanded driving force exports to gear ring axle 32a and the charge-discharge drive mode of motor M G2; The running of shutting engine down 22, will with want power that demanded driving force matches with the turn round motor rotation pattern etc. of control of the mode to gear ring axle 32a output from motor M G2.
Below, to the action of the hybrid vehicle 20 of the embodiment of formation like this, particularly will describe with the action to as the gear ring axle 32a output of axle drive shaft time of (amount) corresponding driving power of stepping on of the acceleration pedal 83 of chaufeur.Fig. 2 illustrates by the diagram of circuit of hybrid power with drive controlling routine one example of electronic control unit 70 execution.This routine is carried out repeatedly every specific time (for example every 8msec).
When carrying out the drive controlling routine, the hybrid power CPU72 of electronic control unit 70, at first, carry out from the acceleration pedal aperture Acc of accelerator pedal position sensor 84 or from the vehicle velocity V of car speed sensor 88, the rotational speed N m1 of motor M G1, MG2, discharging and recharging of Nm2, storage battery 50 requires power P b
*Deng the processing (step S100) imported of the needed data of control.At this, the result that the rotational speed N m1 of motor M G1, MG2, Nm2 will calculate according to the rotary position by the rotor of rotary position detecting sensor 43,44 detected motor M G1, MG2 transmits and imports from motor ECU40 by communication.In addition, discharge and recharge and require power P b
*Use is its big more then discharge with the just big more mode of power and residual capacity (SOC) than the power of a reference value hour its more little usefulness of then the charging big more predefined chart of mode just when bigger than a reference value with the residual capacity (SOC) of storage battery 50, will be transmitted through communication by the data that storage battery ECU52 sets and import from storage battery ECU52.
So after the input data, according to the acceleration pedal aperture Acc and the vehicle velocity V of input, that sets the moment of torsion that requires as vehicle should be to drive wheel 63a, 63b bonded assembly, require torque T r as the gear ring axle 32a output of axle drive shaft
*And should to gear ring axle 32a output, require power P r as the driving that drives with power
*(step S110).Require torque T r
*In an embodiment, to preestablish acceleration pedal aperture Acc, vehicle velocity V and to require torque T r
*Relation, as requiring torque setting to remember in ROM74, when giving acceleration pedal aperture Acc and vehicle velocity V, derive and set and the corresponding torque T r that requires of chart that remembers with chart
*Fig. 3 illustrates and requires the example of torque setting with chart.Driving requires moment of torsion Pr
*Can require torque T r with what set
*Multiply by the rotational speed N r of gear ring axle 32a and calculate.In addition, the rotational speed N r of gear ring axle 32a obtains by vehicle velocity V being multiply by conversion factor k, and the gear of available reducing gear 35 is obtained than the rotational speed N m2 that Gr removes motor M G2.
Setting requires torque T r
*Require moment of torsion Pr with driving
*After, judge that whether driving engine 22 is in running (step S120).When driving engine 22 stops for running, will drive and require power P r
*, discharge and recharge and require power P b
*, loss (Loss) and subsidiary engine be with power Ph sum, calculate the power that requires as vehicle, should require power P e from the driving engine of driving engine 22 outputs
*(step S130) requires power P e with the driving engine that calculates
*Compare (step S140) with engine starting decision content P1.Fig. 4 illustrates the magnitude relationship of the decision content P1～P4 that uses among this embodiment.P2 is that driving engine stops decision content, and P3 is for starting continually and stop to require power P b to discharging and recharging in order to suppress driving engine 22
*Lower limit when carrying out revisal (revisal lower limit), P4 is that revisal discharges and recharges and requires power P b
*The time the revisal higher limit.P3, P4 will be described later.In an embodiment, basically, driving engine 22 is under the state that running stops, and driving engine requires power P e
*When surpassing engine starting decision content P1, make driving engine 22 startings, and under the state that driving engine 22 is turning round, driving engine requires power P e
*When being lower than driving engine and stopping decision content P2, the running of shutting engine down 22.
Driving engine requires power P e
*During deficiency engine starting decision content P1, do not carry out the starting of driving engine 22, be judged as the walking under the motor rotation pattern, the rotating speed of target Ne of driving engine 22
*With target torque Te
*, motor M G1 torque command Tm1 be set at 0 value (step S150, S160), export-restriction value (limit) Wout that will be by removing storage battery 50 with the rotational speed N m2 of motor MG2, as calculating (step S170) by following formula (1) from the torque limited value Tmax of the upper limit of the moment of torsion of motor M G2 output, simultaneously, remove than Gr with the gear of reducing gear 35 and require torque T r
*, as should calculating (step S180) by following formula (2) from the interim Motor torque Tm2tmp of the moment of torsion of motor M G2 output, with the torque limited value Tmax that calculates and interim Motor torque Tm2tmp relatively, a less side is set at the torque command Tm2 of motor M G2
*(step S190).Torque command Tm2 by setting motor M G2 like this
*, to requiring torque T r as the gear ring axle 32a of axle drive shaft output
*Can be used as the moment of torsion that limits in the scope of the export-restriction of storage battery 50 sets.
Tmax＝Wout/Nm2...(1)
Tm2tmp＝Tr
＊/Gr...(2)
So set the rotating speed of target Ne of driving engine 22
*Or target torque Te
*, the torque command Tm1 of motor M G1
*, the torque command Tm2 of motor M G2
*After, with the rotating speed of target Ne of driving engine 22
*With target torque Te
*When Engine ECU 24 transmits, with the torque command Tm1 of motor M G1, MG2
*, Tm2
*Transmit (step S300) to motor ECU40, finish this routine.The acceptance value is 0 rotating speed of target Ne
*With target torque Te
*Engine ECU 24 be in running at driving engine 22 and keep this state under the halted state, and when driving engine 22 in the running, for the running of shutting engine down 22, stop fuel and spray or Ignition Control.Accept torque command Tm1
*, Tm2
*Motor ECU40 carry out the switch control of 6 on-off elements of inverter 41 so that the moment of torsion of motor M G1 becomes 0 value, and carry out the switch control of 6 on-off elements of inverter 42, to instruct Tm2 from motor M G2 output torque
*Moment of torsion.By so controlling, under the state of shutting engine down 22 runnings, can will in the export-restriction Wout of storage battery 50 scope, require torque T r from motor M G2
*Export to gear ring axle 32a.At this moment, because of the friction torque of driving engine 22 greater than this side of motor M G1, so motor M G1 turns round than ρ according to the gear of power distribution integration mechanism 30.Fig. 5 is the view of alignment chart one example that the relation of the rotating speed that respectively turns round key element of the power distribution integration mechanism 30 in the motor rotation pattern and moment of torsion is shown.Among the figure, the S axle on the left side is expressed as the example of rotating speed of sun gear 31 of the rotational speed N m1 of motor M G1, the C axle is expressed as the rotating speed of planetary gear carrier 34 of the rotational speed N e of driving engine 22, and the rotational speed N m2 that the R axle is expressed as motor M G2 multiply by the rotational speed N r of the gear of reducing gear 35 than the gear ring 32 of Gr.
In addition, in step S140, driving engine requires power P e
*During more than or equal to engine starting decision content P1, require power P e according to the driving engine of setting
*Set the rotating speed of target Ne of driving engine 22
*With target torque Te
*(step S250).This being set at according to making the actuating wire of driving engine 22 effective actions and driving engine require power P e
*Come target setting rotational speed N e
*With target torque Te
*Fig. 6 illustrates an example and a target setting rotational speed N e of the actuating wire of setting driving engine 22
*With target torque Te
*Situation.As diagram, rotating speed of target Ne
*With target torque Te
*Can be by requiring power P e at actuating wire and driving engine
*(Ne
** Te
*) the intersection point of certain curve obtain.
Below, use the rotating speed of target Ne that sets
*With the gear of the rotational speed N r (Nm2/Gr) of gear ring axle 32a and power distribution integration mechanism 30 than ρ, calculate the rotating speed of target Nm1 of motor M G1 by following formula (3)
*, simultaneously, according to the rotating speed of target Nm1 that calculates
*With present rotational speed N m1, calculate the torque command Tm1 of motor M G1 with following formula (4)
*(step S260).At this, formula (3) is the mechanical relationship formula of the revolution key element of relative power distribution integration mechanism 30.Fig. 7 illustrates the alignment chart of the mechanical relationship of rotating speed in the revolution key element of power distribution integration mechanism 30 and moment of torsion.Formula (3) can derive easily as using this alignment chart.In addition, 2 thick-line arrow on the R axle are expressed as: at rotating speed of target Ne
*With target torque Te
*Operation point under when making driving engine 22 normal operations, from the torque T e of driving engine 22 outputs
*To the moment of torsion of gear ring axle 32a transmission and the torque T m2 that exports from motor M G2
*Act on moment of torsion on the gear ring axle 32a by reducing gear 35.In addition, formula (4) is for making motor M G1 with rotating speed of target Nm1
*Relational expression in the controlled reset of revolution usefulness, in the formula (4), " k1 " that the right is the 2nd is the gain of proportional, " k2 " that the right is the 3rd is the gain of integral.
Nm1
＊＝?Ne
＊·(1+ρ)/ρ-Nm2/(Gr·ρ)...(3)
Tm1
*=Tm1 last time
*+ k1 (Nm1
*-Nm1)+k2 ∫ (Nm1
*-Nm1) dt... (4)
So calculate the rotating speed of target Nm1 of motor M G1
*With torque command Tm1
*After, with the export-restriction Wout of storage battery 50 and the torque command Tm1 of motor M G1
*The deviation that multiply by the consumption electric power (generation power) of the motor M G1 that the rotational speed N m1 of present motor M G1 obtains is divided by by the rotational speed N m2 with motor MG2, by following formula (5) calculate can from motor M G2 output, as the torque limited value Tmax (step S270) of upper torque limit, simultaneously, use target torque Tr
*With torque command Tm1
*And the gear of power distribution integration mechanism 30 should be from the interim Motor torque Tm2tmp (step S280) as moment of torsion of motor M G2 output than ρ through type (6) calculating, the torque limited value Tmax that calculates is compared with interim Motor torque Tm2tmp, and less side is set at the torque command Tm2 of motor M G2
*(step S290).Torque command Tm2 by setting motor M G2 like this
*, to target torque Tr as the gear ring axle 32a of axle drive shaft output
*Can in the export-restriction value scope of storage battery 50, set as the moment of torsion of restriction.In addition, formula (6) can be easily derives from the alignment chart of aforesaid Fig. 7.
Tmax＝(Wout-Tm1
＊·Nm1)/Nm2...(5)
Tm2tmp＝(Tr
＊+Tm1
＊/ρ)/Gr...(6)
So set the rotating speed of target Ne of driving engine 22
*With target torque Te
*, motor M G1 torque command Tm1
*, motor M G2 torque command Tm2
*After, with the rotating speed of target Ne of driving engine 22
*With target torque Te
*Transmit to Engine ECU 24, simultaneously, with the torque command Tm1 of motor M G1, MG2
*, Tm2
*Transmit (step S300) to motor ECU40, finish this routine.Accept rotating speed of target Ne
*Or target torque Te
*Engine ECU 24 when making driving engine 22 starting, so that driving engine 22 is by rotating speed of target Ne
*With target torque Te
*The mode of shown operation point running is carried out fuel injection control and Ignition Control etc.In addition, accept torque command Tm1
*, Tm2
*Motor ECU40 with at torque command Tm1
*In the time of following drive motor MG1 at torque command Tm2
*The mode of following drive motor MG2 is carried out the switch control of the on-off element of inverter 41,42.
In step S120, be judged to be driving engine 22 when being in operative condition, be judged to be to drive and require power P r
*Whether more than revisal lower limit P3, not enough revisal higher limit P4 (step S200).Driving requires power P r
*During not enough revisal lower limit P3, running that should shutting engine down 22 becomes the motor rotation pattern, carries out the later processing of step S130.Processing below the step S130 is described in detail.
Driving requires power P r
*More than revisal lower limit P3, during not enough revisal higher limit P4, will deduct to drive from revisal higher limit P4 and require power P r
*Numerical value compare with charging limits value P5, a less side is set at revisal power P a (step S220), will discharge and recharge and require power P b
*Be set at new discharging and recharging with a bigger side among the revisal power P a and require power P b
*(step S230).At this, in the setting of revisal power P a, consider that deducting driving from revisal higher limit P4 requires power P r
*Numerical value be to make discharging and recharging after revisal require power P b
*Require power P r with driving
*And not for excessive value below revisal higher limit P4, consider that charging limits value P5 is for making that not setting excessive discharging and recharging requires power P b
*In addition, if charging limits value P5 then can be set at any number for than the low numerical value of higher limit that makes storage battery 50 chargeable power.Require power P b so setting to discharge and recharge
*After, calculate driving and require power P r
*, discharge and recharge and require power P b
*, loss Loss and subsidiary engine with power Ph's and, with the power that requires as vehicle, should require power P e from the driving engine of driving engine 22 outputs
*(step S240), the processing that execution in step S250 is following finishes this routine.So, driving requires power P r
*More than revisal lower limit P3, during not enough revisal higher limit P4, require power P r according to driving
*Revisal discharges and recharges and requires power P b
*, can continue the running of driving engine 22.Thus, suppress the starting of driving engine 22 and the frequent generation that stops of running.
In step S200, drive and require power P r
*When revisal higher limit P4 is above, is judged as needn't revisal to discharge and recharge and requires power P b
*, the processing that execution in step S240 is following finishes this routine.
Fig. 8 illustrates the rotational speed N m2 of motor M G2 and the rotational speed N e of driving engine 22, drives to require power P r
*, driving engine requires power P e
*, discharge and recharge and require power P b
*Time change the instruction diagram of an example.Driving requires power P r
*Stop decision content P2 being lower than driving engine near the time t1 and near the time t2, but owing to drive and require power P r
*More than revisal lower limit P3,, require power P b to discharging and recharging so will set revisal power P a
*Carry out revisal.As a result, set near the driving engine that ratio engine stops the big revisal higher limit P4 of decision content P2 and require power P e
*, continue the running of driving engine 22.Near time t3, require power P r owing to drive
*Be lower than revisal lower limit P3, discharge and recharge and require power P b
*Needn't revisal, the running of shutting engine down 22.Among the figure, the reduction of the rotational speed N e of driving engine 22 slow (delay) is because can not instantaneous shutting engine down 22.In addition, recognize that by the variation of the rotational speed N m2 of motor M G2 vehicle walks on betwixt.
In the hybrid vehicle 20 of embodiment, drive and require power P r
*More than revisal lower limit P3, during not enough revisal higher limit P4, set revisal power P a, if but drive and require power P r
*More than revisal lower limit P3,, also can set revisal power P a even be not enough revisal higher limit P4.
In addition, in the hybrid vehicle 20 of embodiment, will deduct driving from revisal higher limit P4 and require power P r
*Numerical value and charging limits value P5 in a less side be set at revisal power P a, but also can require power P r by driving
*The big more the whole bag of tricks of then setting revisal power P a etc. to little tendency is more set revisal power P a.
In the hybrid vehicle 20 of embodiment, set revisal power P a, use this revisal power P a to come revisal to discharge and recharge and require power P b
*, but also can come revisal driving engine requirement power P e according to revisal power P a
*At this moment, can calculate as driving and require power P r
*, discharge and recharge and require power P b
*, revisal power P a, loss Loss and subsidiary engine require power P e with the driving engine of power Ph sum
*
In the hybrid vehicle 20 of embodiment, export to gear ring axle 32a after by reducing gear 35 power speed changing of motor M G2, but also can be illustrated as the hybrid vehicle 120 of the variation of Fig. 9, also the power of motor M G2 can be connected with the axletree different with the axletree (with drive wheel 63a, 63b bonded assembly axletree) that connects gear ring axle 32a (among Fig. 9 with wheel 64a, 64b bonded assembly axletree).
In the hybrid vehicle 20 of embodiment, with the power of driving engine 22 by power distribution integration mechanism 30 to drive wheel 63a, the 63b bonded assembly, as the gear ring axle 32a of axle drive shaft output, but also can be illustrated as the hybrid vehicle 220 of the variation of Figure 10, can have with the bent axle 26 bonded assembly internal rotors 232 of driving engine 22 and with the axle drive shaft bonded assembly outer rotor 234 of power to drive wheel 63a, 63b output, to the axle drive shaft transmission time, with remaining power-supply change-over, be the paired rotor electromotor 230 of electric power with the part of the power of driving engine 22.
More than, with embodiment example of the present invention is illustrated, but the present invention is not limited to these embodiment, much less, in the scope that does not break away from main idea of the present invention, can adopt various forms to implement.
Claims (13)
1. one kind has combustion engine and can it is characterized in that having to the hybrid vehicle of the electrical motor of axletree outputting power:
Use is from the power generation assembly of at least a portion generating of the power of described combustion engine;
Carry out the electrical storage device that discharges and recharges of exchange of electric power with described power generation assembly and described electrical motor;
And control setup, described control setup has:
According to the operating and setting of chaufeur walking usefulness require driving power require the driving power configuration part, the power setting portion that discharges and recharges that discharges and recharges power that this electrical storage device is discharged and recharged according to the setting state of described electrical storage device, the driving power that requires according to described setting is set the revisal power setting portion of revisal power, the driving power that requires according to described setting, the vehicle that the revisal power setting vehicle that discharges and recharges power and described setting of described setting requires requires the vehicle of power to require power setting portion, require power to judge the running of described combustion engine and the running that running stops-stopping detection unit and when being judged to be running according to the vehicle of this setting by described running-stop detection unit, exporting described vehicle requirement power from described combustion engine when with the described mode that requires driving power to described axletree output, control described combustion engine and described power generation assembly and described electrical motor, and be judged to be running by described running-stop detection unit when stopping, when described internal combustion engine operation is stopped with the described mode that requires driving power to described axletree output, control the control part of described combustion engine and described power generation assembly and described electrical motor.
2. according to the described hybrid vehicle of claim 1, it is characterized in that, described running-stop detection unit proceeding to the 2nd regulation power littler than the 1st regulation power when above, is being judged to be the running of described combustion engine more than described vehicle requirement power to the 1 regulation power, and when requiring power to not enough described the 2nd regulation power to proceed to not enough described the 1st regulation power from described vehicle, the running that is judged to be described combustion engine stops; Described revisal power setting portion is between the on-stream period that described running-stop detection unit being judged to be described combustion engine, the described driving power that requires is that the 3rd regulation power littler than described the 2nd regulation power is when above, so that the mode that described vehicle requires power to surpass described the 2nd regulation power is set described revisal power, and between the on-stream period that described running-stop detection unit being judged to be described combustion engine, described when requiring not enough described the 3rd regulation power of driving power, when described running-stop detection unit being judged to be the running stopping period of described combustion engine, be 0 value perhaps with described revisal power setting.
3. according to the described hybrid vehicle of claim 2, it is characterized in that, described revisal power setting portion between the on-stream period that described running-stop detection unit being judged to be described combustion engine, the described driving power that requires is that the 3rd regulation power littler than described the 2nd regulation power is when above, so that the mode that described vehicle requires power to become the 4th regulation power big and littler than described the 1st regulation power than described the 2nd regulation power is set described revisal power.
4. according to the described hybrid vehicle of claim 3, it is characterized in that, described revisal power setting portion between the on-stream period that described running-stop detection unit being judged to be described combustion engine, the described driving power that requires when described the 3rd regulation power is above so that described discharge and recharge power become the 5th regulation power with mode set described revisal power.
5. according to the described hybrid vehicle of claim 1, it is characterized in that described vehicle requires power setting portion to require driving power to set described vehicle to require power according to the power of a bigger side in the revisal power that discharges and recharges power and described setting of described setting and described setting.
6. according to the described hybrid vehicle of claim 1, it is characterized in that, described power generation assembly and the output shaft of described combustion engine are connected with axle drive shaft on being connected to described axletree, along with the input and output of electric power and power, can with from least a portion of the power of this combustion engine to this axle drive shaft output.
7. according to the described hybrid vehicle of claim 6, it is characterized in that described power generation assembly has: be connected with the output shaft of described combustion engine and described axle drive shaft and the 3rd these 3 axle, according to by any 2 inputs in these 3 axles and to the power of its output, with power by the input of residue axle with to 3 shaft type power input and output portions of its output; With with power by described the 3rd input with to the electrical generator of its output.
8. according to the described hybrid vehicle of claim 6, it is characterized in that, described power generation assembly be have on the output shaft that is installed to described combustion engine the 1st rotor be installed to described axle drive shaft on the 2nd rotor, the electric power that produces along with the relative revolution of relative the 1st rotor of the 2nd rotor, electromagnetic action by the 1st rotor and the 2nd rotor input and output, will be from least a portion of the power of this combustion engine electrical generator to this axle drive shaft output.
9. the control method of a hybrid vehicle, this hybrid vehicle have combustion engine, can be to the electrical motor of axletree outputting power, use power generation assembly, make the discharged and recharged electrical storage device of the exchange of electric power of this power generation assembly and described electrical motor from least a portion generating of the power of described combustion engine, described control method is characterised in that to have following steps:
(a) according to the driving power that requires of the operating and setting of chaufeur walking usefulness,
(b) discharge and recharge the power that discharges and recharges of usefulness according to this electrical storage device of setting state of described electrical storage device,
(c) set revisal power according to the driving power that requires of described setting,
(d) set vehicle and require power as the power that comprises the revisal power summation that discharges and recharges power and described setting that requires driving power and described setting of described setting,
(e) vehicle according to described setting requires power to judge that the running of described combustion engine and running stop,
(f) be that described combustion engine is when being in operative condition in this result of determination, make the described driving power that requires control described combustion engine and described power generation assembly and described electrical motor exporting described vehicle requirement power from described combustion engine when to the mode of described axletree output, in described result of determination is that described combustion engine is in running during halted state, so that described internal combustion engine operation makes the described driving power that requires control described combustion engine and described power generation assembly and described electrical motor to the mode of described axletree output when stopping.
10. according to the control method of the described hybrid vehicle of claim 9, it is characterized in that, described step (e) is: proceeding to the 2nd regulation power littler than the 1st regulation power when above more than described vehicle requires power to the 1 regulation power, be judged to be the running of described combustion engine, when requiring power to not enough described the 2nd regulation power to proceed to not enough described the 1st regulation power from described vehicle, the running that is judged to be described combustion engine stops
Described step (c) is: between the on-stream period that is judged to be described combustion engine by described step (e), the described driving power that requires is the 3rd regulation power littler than described the 2nd regulation power when above, sets described revisal power in the mode that described vehicle requires power to surpass described the 2nd regulation power; Between the on-stream period that is judged to be described combustion engine by described step (e), described when requiring not enough described the 3rd regulation power of driving power, when perhaps being judged to be the running stopping period of described combustion engine, be 0 value with described revisal power setting by described step (e).
11. control method according to the described hybrid vehicle of claim 10, it is characterized in that, described step (c) is: between described step (e) is judged to be the on-stream period of described combustion engine, the described driving power that requires is the 3rd regulation power littler than described the 2nd regulation power when above, sets described revisal power in the mode that described vehicle requires power to become the 4th regulation power big and littler than described the 1st regulation power than described the 2nd regulation power.
12. control method according to the described hybrid vehicle of claim 11, it is characterized in that, described step (c) is: be judged to be between the on-stream period of described combustion engine in described step (e), the described driving power that requires is when described the 3rd regulation power is above, so that the described power that discharges and recharges becomes the following mode of the 5th regulation power and sets described revisal power.
13. control method according to the described hybrid vehicle of claim 9, it is characterized in that described step (b) is: require driving power to set described vehicle to require power according to the power of a bigger side in the revisal power that discharges and recharges power and described setting of described setting and described setting.
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| CN103180520A (en) * | 2010-10-27 | 2013-06-26 | 洋马株式会社 | Power transmission device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2407363B1 (en) * | 2009-03-12 | 2014-10-15 | Toyota Jidosha Kabushiki Kaisha | Device for preventing false lock |
| AT518327B1 (en) * | 2016-03-25 | 2017-12-15 | Ing Hermann Stockinger Dipl | Contacting system for establishing an electrical connection between a primary device and a secondary device |
| CN115163368A (en) * | 2022-06-15 | 2022-10-11 | 东风柳州汽车有限公司 | Engine starting method, device, equipment and storage medium |
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