CN105936263A - Vehicle control device - Google Patents

Vehicle control device Download PDF

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Publication number
CN105936263A
CN105936263A CN201610069039.8A CN201610069039A CN105936263A CN 105936263 A CN105936263 A CN 105936263A CN 201610069039 A CN201610069039 A CN 201610069039A CN 105936263 A CN105936263 A CN 105936263A
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CN
China
Prior art keywords
clutch
vehicle
gear
power source
ecu21
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610069039.8A
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Chinese (zh)
Other versions
CN105936263B (en
Inventor
冈村由香里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
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Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN105936263A publication Critical patent/CN105936263A/en
Application granted granted Critical
Publication of CN105936263B publication Critical patent/CN105936263B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B60W10/023—Fluid clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/14—Clutch pedal position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/021—Clutch engagement state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The invention provides a vehicle control device which reduces speed difference between the input shaft of a transmission and an output shaft when N freewheeling driving ends, and restrains synchronizing mechanism and driveability decline. The vehicle control device controls a vehicle; the vehicle is provided with a power source, a transmission which can select a variable speed level according to a driver gear, change the speed of driving force inputted from the power source, and output the driving force, a clutch and a clutch pedal. When a gear is at a neutral position and the clutch is in a joint state, the vehicle performs N freewheeling driving, and the vehicle control device controls joint and separation of the clutch, and performs the following controls: when a clutch separation instruction is inputted through treading the clutch pedal, and the starting of the power source is controlled , the clutch is separated in a phase where the gear is not at a neutral position, or the rotating speed of an input shaft is changed above an index value.

Description

Controller of vehicle
Technical field
The present invention relates to controller of vehicle.
Background technology
Conventionally, there is known by clutch separation in the coasting drive make engine stop State under again there is the start request of electromotor in the case of make electromotor start and make clutch The technology that device engages.Such as patent documentation 1 records a kind of controller of vehicle, is possessing band There is the manual transmission of automatic speed changing function as in the vehicle of variator, start at electromotor, Before clutch engages, automatically gear shift is the gear ratio of variator and the speed discrepancy reduction of electromotor.
Patent documentation 1: Japanese Unexamined Patent Publication 2004-204963 publication
Summary of the invention
In the vehicle possessing manual transmission, in the case of using above-mentioned conventional structure, When coasting drive terminates clutch joint after electromotor starts, the change of variator Speed level is not limited to the speed change level that power shaft rotating speed is little with the speed discrepancy of output shaft rotating speed.Therefore, exist The speed change of variator is added under the state that the power shaft of variator is big with the speed discrepancy of output shaft In the case of, there is also the load that synchro-meshing is applied become big and what the durability of variator declined Problem.
The present invention makes in view of the foregoing, its object is to provide a kind of controller of vehicle, At the end of possessing the coasting drive of vehicle of manual transmission, it is possible to reduce synchronizing to nibble Close the load applied and improve the durability of variator.
In order to solve above-mentioned problem, it is achieved above-mentioned purpose, the controller of vehicle pair of the present invention Vehicle is controlled, and above-mentioned vehicle possesses: power source；Variator, it is possible to by by driver Manual operation and the selection of gear that carries out to select speed change level, and can be to from above-mentioned dynamic The driving force of power source input carries out speed change and exports；Clutch, by joint or separation by upper The power transfer path via above-mentioned variator stated between power source with driving wheel is connected or cuts Disconnected；And clutch pedal, it is possible to switch above-mentioned clutch according to the operation carried out by driver Joint and separation, the state that above-mentioned gear is neutral gear and above-mentioned clutch be engage state Under, above-mentioned vehicle makes above-mentioned power source stop and continuing to travel, the spy of above-mentioned controller of vehicle Levying and be, above-mentioned controller of vehicle possesses control unit, and above-mentioned control unit is controlled as follows System: have input the instruction of above-mentioned clutch separation is opened by depressing above-mentioned clutch pedal Beginning after the starting control of above-mentioned power source, the selection at above-mentioned gear becomes the shape beyond neutral gear In the case of state or in the case of the power shaft rotating speed of above-mentioned variator becomes more than predetermined value, By above-mentioned clutch separation.
According to this structure, even if clutch pedal is operated, it is also possible to making clutch is to engage shape State, therefore power source is the most temporarily concatenated with the power shaft of variator.Therefore, it is possible to dynamic Power source makes the power shaft rotating speed of variator increase after starting.Thereby, it is possible to make the input of variator Axle rotating speed and the speed discrepancy of output shaft rotating speed are less than conventional situation about recovering from coasting drive Under the speed discrepancy of power shaft rotating speed and output shaft rotating speed of variator.Therefore, it is possible to reduce right The load that the synchro-meshing of variator applies, therefore, it is possible to improve the durability of variator.
The controller of vehicle of the present invention is based on above-mentioned invention, it is characterised in that above-mentioned Vehicle possesses the motor that can make above-mentioned mover starts, and above-mentioned control unit is controlled as follows System: have input by above-mentioned clutch separation instruction and perform above-mentioned clutch separation it After, make above-mentioned mover starts by above-mentioned motor, and be chosen as sky at above-mentioned gear In the case of the state of shelves, above-mentioned clutch is made automatically to engage at least one times.
According to this structure, when mover starts, clutch becomes released state, as in clutch The situation making mover starts under the state that device engages is such, it is not necessary to make the power shaft of variator Rotate together.Therefore, compared with the situation making electromotor start when clutch engages, The energy needed for the starting of electromotor can be reduced.
The controller of vehicle of the present invention is based on above-mentioned invention, it is characterised in that above-mentioned Vehicle possesses the motor that can make above-mentioned power source action, and above-mentioned control unit is controlled as follows System: when have input the instruction by above-mentioned clutch separation, makes above-mentioned dynamic by above-mentioned motor The action of power source, in the case of the state that above-mentioned gear becomes beyond neutral gear, makes above-mentioned power source Independent operation.
According to this structure, it is possible to started the starting of power source before mover starts by motor Control, therefore, it is possible to postpone the period of power source independent operation.Thereby, it is possible to suppression fuel Consume and increase the power shaft rotating speed of variator, it is possible to reduce power shaft and the output shaft of variator Speed discrepancy.
Invention effect
Vehicle according to the invention controls device, even if so that clutch pedal becomes separation shape In the case of the mode of state has carried out operation, also can make clutch temporary joint.Thereby, it is possible to Power source is made temporarily to link with the power shaft of variator, therefore, it is possible to increase after mover starts The power shaft rotating speed of variator.Therefore, it is possible to reduce output shaft rotating speed and the power shaft of variator The speed discrepancy of rotating speed.Therefore, the coasting drive at the vehicle possessing manual transmission terminates Time, it is possible to reduce the load that the synchro-meshing of variator is applied, it is possible to increase variator resistance to Property for a long time.
Accompanying drawing explanation
Fig. 1 is vehicle and the structure of controller of vehicle of the first embodiment representing the present invention Block diagram.
Fig. 2 is the car of the controller of vehicle execution of the first embodiment for the present invention is described The flow chart of control method.
Fig. 3 is for explanation speed change in the control method for vehicle of first embodiment of the present invention Device rotating speed is predetermined value N1The time diagram of above situation.
Fig. 4 is for explanation speed change in the control method for vehicle of first embodiment of the present invention Device rotating speed is less than predetermined value N1State under by time that gear switch is situation beyond neutral gear Figure.
Fig. 5 is the variation of the control method for vehicle of the first embodiment for the present invention is described Time diagram.
Fig. 6 is the structure of vehicle and the controller of vehicle representing second embodiment of the present invention Block diagram.
Fig. 7 is for the car that the controller of vehicle of second embodiment of the present invention performs is described The flow chart of control method.
Fig. 8 is for explanation speed change in the control method for vehicle of second embodiment of the present invention Device rotating speed is predetermined value N2The time diagram of above situation.
Fig. 9 is the time diagram of the control method for vehicle for prior art is described.
Detailed description of the invention
Hereinafter, referring to the drawings, the controller of vehicle of embodiments of the present invention is described.It addition, The invention is not restricted to embodiments described below.And, in the composition of embodiment disclosed below In key element, including those skilled in the art it can be readily appreciated that key element or be substantially the same Key element.
(the first embodiment)
(structure of vehicle)
First, illustrate to apply the vehicle of the controller of vehicle of first embodiment of the present invention Structure.Fig. 1 be represent the controller of vehicle applying this first embodiment vehicle and The schematic diagram of the structure of controller of vehicle.As it is shown in figure 1, the vehicle 1 of this first embodiment Possess electromotor (ENG) 11, clutch 12, step change transmission (MT) 13 and starter 14。
Electromotor 11 is as the power source function of vehicle 1.It is provided with measurement at electromotor 11 The engine speed sensor 11a of the rotating speed of electromotor 11.Electromotor 11 can be by as electricity The rotation of the starter 14 of motivation starts.And, electromotor 11 via clutch 12 with Step change transmission 13 links.Further, the output torque of electromotor 11, via clutch 12, depends on The secondary power transfer path via step change transmission 13 and differential attachment 15 etc., to driving wheel 16 Transmission.
Clutch 12 is such as made up of the clutch apparatus of frictional engagement formula.Clutch 12 passes through Engage or separate and the power transfer path between electromotor 11 with step change transmission 13 is connected Or cut off.Clutch 12 switches joint shape according to driver to the operation of clutch pedal 31 State and released state.
Step change transmission 13 according to driver the manual operation of gear shift operating portion 17 selected with Speed change level that gear is corresponding and perform speed change.That is, step change transmission 13 can be selected by driver Select the gear corresponding with manual operation.It is provided with power shaft speed probe at step change transmission 13 13a.The rotating speed of the power shaft 13b of power shaft speed probe 13a measurement step change transmission 13. The output torque as driving force that electromotor 11 is exported by step change transmission 13 carries out speed change, Export from output shaft 13c via step change transmission 13.That is, defeated to step change transmission 13 Enter the rotation of electromotor 11 of axle 13b input, driving force in step change transmission 13 by speed change And export to output shaft 13c, transmit to the driving wheel 16 of vehicle 1 via differential attachment 15.
(structure of controller of vehicle)
It follows that the structure of the controller of vehicle of first embodiment of the explanation present invention.As Shown in Fig. 1, the controller of vehicle 20 of this first embodiment possesses electronic control unit (Electronic Control Unit:ECU) 21, clutch pedal sensor 22, brake pedal Sensor 23, accelerator pedal sensor 24, clutch actuator 25 and gear position sensor 26.
As the ECU21 of control unit by include CPU, RAM, ROM and interface etc. Known microcomputer is that the electronic circuit of main body is constituted.By CPU perform from ROM to The control program being loaded in RAM, control based on CPU makes the various device actions in vehicle 1, And carry out the read and write of data in RAM, ROM, it is achieved in the function of ECU21. As the ECU21 of control unit based on the various sensors in the vehicle 1 constituted as described above The information of class, comprehensively control electromotor 11, step change transmission 13, starter 14 and from Clutch actuator 25.
Clutch pedal sensor 22 detects driver's operational ton to clutch pedal 31.From Clutch pedal sensor 22 by detect represent clutch pedal 31 operational ton signal to ECU21 exports.ECU21 controls clutch according to the operational ton of the clutch pedal 31 of input Device actuator 25.
Brake pedal sensor 23 detects driver's operational ton to brake pedal 32.Braking is stepped on Plate sensor 23 is by defeated to ECU21 for the signal of the operational ton representing brake pedal 32 detected Go out.And, accelerator pedal sensor 24 detects driver's operational ton to gas pedal 33. Accelerator pedal sensor 24 by the signal of the operational ton of expression gas pedal 33 that detects to ECU21 exports.ECU21 is according to the brake pedal 32 inputted, the operational ton of gas pedal 33 Control the output of electromotor 11.
Clutch actuator 25 according to based on the signal from clutch pedal sensor 22 from The instruction of ECU21 input, controls the hydraulic pressure stream into and out to clutch 12, thus switches The engagement state of clutch 12 and released state.That is, ECU21 is as required, it is possible to with drive The different mode that operates of the clutch pedal 31 of the person of sailing makes clutch 12 action.Specifically, ECU21 is by controlling clutch actuator 25, not with the driver behaviour to clutch pedal 31 Link, and the inertia traveling that can carry out making clutch 12 separate and travel, or make clutch Device 12 temporary joint.
Gear position sensor 26 detects the gear in gear-change operation portion 17.Gear position sensor 26 will detection The signal representing gear arrived exports to ECU21.
(control method for vehicle)
It follows that the control method of the controller of vehicle 20 constituted as described above is described.Figure 2 is the flow chart of the control method of the controller of vehicle 20 representing this first embodiment.And And, Fig. 3 and Fig. 4 is the time diagram of the control method for controller of vehicle 20 is described.
The flow chart of the control method shown in Fig. 2 becomes generally traveling at the transport condition of vehicle 1 Moment start.It is on-state that this coast control processes the ignition switch at vehicle 1 The most predetermined control cycle period performs repeatedly.
As in figure 2 it is shown, first, in the coast control of vehicle 1 processes, in step ST1 In, ECU21 judges the on/off of gas pedal 33.Namely be based on and sense from gas pedal The signal of the operational ton of the expression gas pedal 33 of device 24 output, ECU21 judges gas pedal Whether 33 depressed.In the case of the operational ton of gas pedal 33 is more than predetermined value, ECU21 It is judged to that gas pedal 33 is depressed (following for connecting) (step ST1: no), terminates used Property slide control process.On the other hand, the operational ton in gas pedal 33 is less than the feelings of predetermined value Under condition, ECU21 be judged to gas pedal 33 do not depressed (following for disconnect) (step ST1: It is), shift to step ST2.
In step ST2, ECU21 judges the on/off of clutch pedal 31.That is, ECU21 Letter based on the operational ton representing clutch pedal 31 exported from clutch pedal sensor 22 Number, it is judged that whether clutch pedal 31 is depressed.Further, in the operation of clutch pedal 31 In the case of amount is more than predetermined value, ECU21 is judged to that clutch pedal 31 is for connecting (step ST2: no), terminate coast control and process.On the other hand, at clutch pedal 31 Operational ton is less than in the case of predetermined value, and ECU21 is judged to that clutch pedal 31 is for disconnecting (step Rapid ST2: yes), shift to step ST3.
In step ST3, ECU21 judges the gear in gear-change operation portion 17.That is, ECU21 Signal based on the gear representing gear-change operation portion 17 exported from gear position sensor 26, it is judged that Whether gear is neutral gear (N).The gear being judged to gear-change operation portion 17 at ECU21 is neutral gear In the case of in addition (step ST3: no), terminate coast control and process.On the other hand, It is judged to (step ST3: yes) in the case of gear is neutral gear, to step ST4 at ECU21 Transfer.
By above step ST1, ST2, ST3, carry out neutral gear coast (below for N Coast) the execution condition criterion that travels.It addition, step ST1～the respective process of ST3 Can carry out concurrently or carry out on the contrary, not be defined to above-mentioned order.
When shifting to step ST4, ECU21 stops electromotor 11 being sprayed fuel and making to send out Motivation 11 stops.Thus, vehicle 1 is carried out coast and perform control.Vehicle 1 becomes N Coasting drive state.Under N coasting drive state, such as the time T1 in Fig. 3 Shown in, the rotating speed of electromotor 11 is 0, and gear is neutral gear (N), clutch pedal sensor 22 are output as disconnecting, and clutch 12 is engagement state.It is additionally, since clutch 12 to be connect Close, therefore the turning of the power shaft rotating speed of the power shaft 13b of step change transmission 13 and electromotor 11 Speed synchronizes and is 0.On the other hand, the output shaft rotating speed of the output shaft 13c of step change transmission 13 Become the rotating speed of the speed depending on vehicle 1.It addition, in Fig. 3 and later time diagram, Rotation with the power shaft 13b and output shaft 13c of output shaft invariablenes turning speed and step change transmission 13 Turn the power shaft rotating speed mode standardization overlapping with output shaft rotating speed under the state synchronized and carry out Record.Then, shift to step ST5 shown in Fig. 2.
In step ST5, ECU21 judges the on/off of clutch pedal 31.It addition, At this moment, vehicle 1 is N coasting drive state.In this case, step at clutch In the case of plate 31 depresses with operational ton more than predetermined value, ECU21 is judged to clutch pedal 31 connect (step ST5: yes), shift to step ST7.When shifting to step ST7, ECU21 starts to start control, starts to spray fuel in electromotor 11, and passes through starter 14 controls carrying out turning crankshaft.Thus, as shown in the time T1 of Fig. 3, electromotor 11 is again Start.Then, shift to step ST8 described later shown in Fig. 2.
On the other hand, in step ST5, the operational ton at clutch pedal 31 is less than predetermined value In the case of, ECU21 is judged to that clutch pedal 31 disconnects (step ST5: no), Xiang Bu Rapid ST6 transfer.In step ST6, ECU21 judges gas pedal in the same manner as step ST1 The on/off of 33.It is judged to the situation that gas pedal 33 is not depressed and disconnect at ECU21 Under (step ST6: no), revert to step ST5.On the other hand, it is judged at ECU21 Gas pedal 33 depressed and connected in the case of (step ST6: yes), to step ST15 Transfer, carries out restarting of electromotor 11 in the same manner as step ST7, sliding from conventional N inertia Every trade is driven towards electromotor and is travelled recovery, terminates coast control and processes.
So, before ECU21 is judged to clutch pedal 31 or gas pedal 33 is connected, The process of step ST5, ST6 is repeated.Inertia is carried out sliding by these steps ST5, ST6 Row termination condition judges.It addition, the process of step ST5, ST6 can be carried out parallel or on the contrary Carry out, be not defined to above-mentioned order.
In step ST8, ECU21, by controlling clutch actuator 25, automatically makes clutch Device 12 engages at least 1 time.When such clutch 12 is engaged, such as time T2～T3 of Fig. 3 Shown in, the power shaft rotating speed of the power shaft 13b of step change transmission 13 rises.
Then, shifting to step ST9 shown in Fig. 2, ECU21 judges step change transmission 13 The power shaft rotating speed of power shaft 13b whether be predetermined value (threshold value) N1Above, specifically Such as idling speed NAAbove.Further, at ECU21 as shown in the moment of the time T3 of Fig. 3 The power shaft rotating speed being judged to power shaft 13b is predetermined value N1In the case of above (step ST9: It is), shift to step ST11.
In step ST11, ECU21 controls clutch actuator 25, automatically makes clutch 12 separate (time T3 in Fig. 3).Then, shift to step ST12 shown in Fig. 2.
In step ST12, as step ST3, ECU21 judges gear-change operation portion 17 Whether gear is neutral gear (N).Further, the gear in gear-change operation portion 17 it is judged at ECU21 For (step ST12: yes) in the case of neutral gear, repeatedly perform the process of step ST12.Separately On the one hand, it is judged to (step ST12: no) in the case of gear is not neutral gear at ECU21, Shift to step ST13.
In step ST13, as step ST2, ECU21 judges clutch pedal 31 Whether on/off, i.e. output signal from clutch pedal sensor 22 are connection.Logical Cross ECU21 to be judged to from the situation that the output signal of clutch pedal sensor 22 is connection Under (step ST13: yes), revert to step ST12.On the other hand, judge at ECU21 For from clutch pedal sensor 22 output signal for disconnect in the case of (step ST13: No), shift to step ST14.
In step ST14, ECU21 controls clutch actuator 25, makes clutch 12 engage (time T4 in Fig. 3).Further, shown in after the time T4, step change transmission 13 defeated The power shaft rotating speed entering axle 13b rises to the rotating speed of the output shaft synchronization with output shaft 13c. And, by the joint of clutch 12, electromotor 11 is linked with step change transmission 13, become Common electromotor transport condition.So, carried out by step ST12 shown in Fig. 2～ST14 Coast finishing control.
On the other hand, in step ST9, it is judged to the power shaft of power shaft 13b at ECU21 Rotating speed is less than predetermined value N1In the case of (step ST9: no), ECU21 and step ST3 with Judge whether gear is neutral gear sample.Further, it is judged to gear-change operation portion 17 at ECU21 Gear is still, in the case of neutral gear (step ST10: yes), to revert to step ST9.
On the other hand, in step ST10, it is judged to the shelves in gear-change operation portion 17 at ECU21 Position switch to beyond neutral gear in the case of (step ST10: no), ECU21 control clutch promote Move device 25 and automatically make clutch 12 separate (step ST11).That is, such as the time of Fig. 4 Shown in T2～T5, even if the power shaft rotating speed at power shaft 13b is less than predetermined value N1State under, From neutral gear, the gear in gear-change operation portion 17 is being switched to the stage beyond neutral gear, and ECU21 will be from Clutch 12 is automatically separated.Then, as described above, entered by the process of step ST12～ST14 Row coast finishing control.
First embodiment of the present invention from the description above, from N coasting drive to In the case of electromotor travels transfer, clutch 12 is made to be bonded to after electromotor 11 is restarted Few 1 time, made the power shaft rotating speed of power shaft 13b more than 0 by the driving of electromotor 11. Thus, the output shaft of the power shaft rotating speed of power shaft 13b and the output shaft 13c depending on speed The speed discrepancy of rotating speedCan be than the speed discrepancy of conventional N coasting driveLittle.Therefore, In step change transmission 13, when power shaft 13b and output shaft 13c links, it is possible to reduce phase Mutual speed discrepancy.Therefore, in the vehicle 1 carrying out N coasting drive, from N inertia Slide traveling when electromotor travels transfer, it is possible to reduce and the synchronization in step change transmission 13 is nibbled Close the load applied, it is possible to durability aging of suppression step change transmission 13.
And, according to this first embodiment, depress clutch pedal 31 and clutch driver In the moment that device pedal sensor 22 is connected, clutch 12 is temporarily separated.Thus, driving Under the state that member depresses clutch pedal 31, it is possible to avoid the joint of clutch 12 to continue all the time State, therefore, it is possible to suppression driver feels uncomfortable probability, it is possible to suppression driving Decline.
And, Fig. 9 is the time diagram corresponding with Fig. 3 and Fig. 4.As it is shown in figure 9, in the past The vehicle 1 carrying out N coasting drive in, before time t 1, clutch 12 is for connecing Conjunction state and electromotor 11 are halted state, and therefore the power shaft rotating speed of power shaft 13b is 0. On the other hand, the output shaft 13c of step change transmission 13 is according to the speed of vehicle 1 and synchronous rotary. In this case, when clutch pedal sensor 22 output is connected (time t1), by clutch Device 12 separates and makes electromotor 11 to restart.Then, it is empty at time t1～t2 by gear switch Beyond Dang, at time t2, when clutch 12 is engaged, power shaft 13b with according to vehicle 1 Speed and the output shaft 13c that rotates synchronizes.Thus, the rotating speed of power shaft 13b from 0 to pressing Till rotating speed according to the speed of vehicle 1, increase speed discrepancyAmount.The urgency of power shaft rotating speed The acute synchro-meshing (not shown) possessed to step change transmission 13 that increases applies big load.
In contrast, in the case of not carrying out the vehicle 1 of N coasting drive, travelling Period electromotor 11 does not stops, therefore power shaft 13b such as the power shaft (N traveling) in Fig. 9 Shown in, with idling speed N of electromotor 11ADegree synchronously rotates.Therefore, N is not being carried out In the vehicle 1 of coasting drive, it is power shaft rotating speed time beyond neutral gear by gear switch Increase is the power shaft rotating speed of the power shaft 13b with the output shaft synchronization according to speed and sends out Idling speed N of motivation 11ASpeed discrepancyDegree.Such speed discrepancyLess than upper The speed discrepancy statedThe most hardly to synchro-meshing imposed load.
So, according to the first above-mentioned embodiment, it is possible to solve to be used to owing to vehicle 1 carries out N Property slide the durability of step change transmission 13 that travels and produce aging, with power shaft rotating speed with The difference of output shaft rotating speed is the such problem points of impact of cause.
(variation of the first embodiment)
Fig. 5 be the variation for the first above-mentioned embodiment is described with Fig. 3 and Fig. 4 pair The time diagram answered.
As it is shown in figure 5, in this variation, different from the first above-mentioned embodiment, even if In the case of clutch pedal sensor 22 is for connecting, also clutch 12 is maintained joint shape State.That is, the gear in gear-change operation portion 17 is neutral gear and when electromotor 11 is restarted, Clutch 12 becomes engagement state.Therefore, corresponding to the starting of electromotor 11 and power shaft 13b Power shaft rotating speed increase.Further, as the first above-mentioned embodiment, at power shaft 13b Power shaft rotating speed become predetermined value N1The above stage (time T3), ECU21 control from Clutch actuator 25, makes clutch 12 be automatically separated.Other structures are as the first embodiment. It addition, the power shaft rotating speed at power shaft 13b is less than predetermined value N1State under by gear switch In the case of beyond neutral gear, at this moment, ECU21 carries out automatically separating clutch 12 Control.
(the second embodiment)
It follows that explanation second embodiment of the present invention.Fig. 6 is to represent this second reality of application Execute the vehicle of the controller of vehicle of mode and the schematic diagram of the structure of controller of vehicle.
(vehicle and the structure of controller of vehicle)
As shown in Figure 6, in this second embodiment, different from the first embodiment, vehicle 2 are made up of the motor vehicle driven by mixed power of an electric motor type.And, vehicle 2 possesses electromotor (ENG) 11, clutch 12, step change transmission (MT) 13 and motor generator (MG) 18.Here, As the MG18 of motor, via endless belt 18a, rotary shaft with electromotor 11 links.Separately Outward, the rotary shaft of the rotary shaft of MG18 with electromotor 11 directly can be linked.Vehicle 2 Other structures in structure and controller of vehicle 20 are identical with the first embodiment.
(control method for vehicle)
It follows that the control method of explanation the second embodiment.Fig. 7 and Fig. 8 represents respectively The flow chart of the control method of the controller of vehicle of this second embodiment and time diagram.
In the flow chart of the control method shown in Fig. 7, step ST21, ST22, ST23, ST24, ST25, ST26 be respectively step ST1 with the first embodiment, ST2, ST3, The process that ST4, ST5, ST6 are identical.
Additionally, step ST25, ST26 are being judged to clutch pedal 31 or gas pedal 33 Repeatedly perform before connection.ECU21 be judged to gas pedal 33 for connecting (step ST26: It is) in the case of, shift to step ST37.In step ST37, ECU21 passes through MG18 Make electromotor 11 rotate and start fuel injection and igniting, making electromotor 11 restart, terminate Coast control processes.On the other hand, it is judged to that clutch pedal 31 is for connecing at ECU21 In the case of logical (step ST25: yes), shift to step ST27.
In step ST27, ECU21 starts to start control and make MG18 carry out traction drive. Thus, ECU21 performs to make the rotating speed of electromotor 11 increase to predetermined turning via endless belt 18a The so-called motoring of speed.By this motoring, as shown in after the time T11 of Fig. 8, The rotary shaft of electromotor 11 increases to desired speed.Here, increased by motoring is sent out Predetermined rotating speed (predetermined value) N of the rotary shaft of motivation 112More than 0, and less than electromotor 11 Idling speed NA.Then, shift to step ST28 shown in Fig. 7.
In step ST28, ECU21 by control clutch actuator 25 and automatically make from Clutch 12 engages.Thus, as shown in time T12～T13 of Fig. 8, step change transmission 13 The power shaft rotating speed of power shaft 13b increases to the synchronization of the rotary shaft with electromotor 11.
Then, shift to step ST29 shown in Fig. 7.Here, about step ST29, ST30, Identical with step ST9 of the first embodiment, ST10 respectively, therefore omit the description.It addition, Power shaft rotating speed at power shaft 13b arrives predetermined value N in the same manner as the first embodiment2Before And gear is in the case of neutral gear switches to beyond neutral gear, shift to step ST31 at this moment.
In step ST31, ECU21 by control clutch actuator 25 and automatically make from Clutch 12 separates (for time T13 in Fig. 8).That is, at the power shaft of step change transmission 13 The power shaft rotating speed of 13b arrives predetermined value N2, be specifically greater than 0 and turn less than idling Speed NAPredetermined value N2Stage, clutch 12 is automatically separated.Then, to step ST32 Transfer.
In step ST32, ECU21 determination step ST31 makes what clutch 12 separated to touch Which in step ST29, ST30 sends out is.Further, this triggering is beyond neutral gear at gear In the case of, be not in the case of power shaft rotating speed (step ST32: no), to step described later Rapid ST34 transfer.On the other hand, it is power shaft rotating speed in the triggering making clutch 12 separate In the case of (step ST32: yes), whether ECU21 carries out gear in the same manner as step ST30 Judgement (step ST33) for neutral gear.
In the case of gear is neutral gear (step ST33: yes), proceed step ST33 Determination processing.In the case of gear switch is beyond neutral gear (step ST33: no), to Step ST34 shifts.
In step ST34, ECU21 for rotary shaft by MG18 with predetermined rotating speed The electromotor 11 rotated so that it is start fuel injection and igniting, thus make electromotor 11 restart And start independent operation.
Then, ECU21 performs the process of step ST35, ST36 successively.In step ST35 In, ECU21 sentences the on/off of the output signal from clutch pedal sensor 22 Break repeatedly performing to become disconnection to this output signal.Step ST36 and the first embodiment Step ST14 is identical.The moment that ECU21 makes clutch 12 engage is the time T15 shown in Fig. 8 Moment.Further, as shown in after time T15, the power shaft 13b's of step change transmission 13 Power shaft rotating speed rises to the rotating speed of the output shaft synchronization with output shaft 13c.So, N is used to Property slides traveling and terminates.Carry out coast by step ST34 shown in Fig. 7～ST36 to terminate Control.
Second embodiment of the present invention from the description above, from N coasting drive to Electromotor travel transfer time, during the motoring of electromotor 11 based on MG18, make from Clutch 12 engages at least 1 time.Thereby, it is possible to make what the rotary shaft with electromotor 11 linked to have The rotating speed of the power shaft 13b of level variator 13 is more than 0 during N coasting drive.Therefore, The effect as the first embodiment can be obtained.And, beyond gear is neutral gear time Carve and the power shaft rotating speed of power shaft 13b is predetermined value N2The above any instant in moment, Clutch 12 is automatically separated.Therefore, clutch 12 will not become the state engaged all the time, because of This can reduce the probability that driver feels uncomfortable, it is possible to the decline of suppression driving.
Above, although specifically illustrate embodiments of the present invention, but the present invention does not limit For above-mentioned embodiment, it is possible to carry out the various deformation of technological thought based on the present invention.Example As, the numerical value enumerated in the above-described embodiment only example, it is also possible to as required Use different numerical value.
Description of reference numerals
1,2 vehicle
11 electromotors
12 clutches
13 step change transmissions (MT)
13b power shaft
13c output shaft
14 starters
17 gear-change operation portions
18 motor generator (MG)
21 ECU
26 gear position sensors
31 clutch pedals

Claims (3)

1. a controller of vehicle, is controlled vehicle,
Described vehicle possesses:
Power source；
Variator, it is possible to the selection of the gear carried out by the manual operation by driver is selected Select speed change level, and the driving force inputted from described power source can be carried out speed change and export；
Clutch, by engage or separate and by between described power source and driving wheel via institute The power transfer path stating variator connects or cuts off；And
Clutch pedal, it is possible to switch described clutch according to the operation carried out by driver Engage and separate,
Under the state that described gear is neutral gear and described clutch are the state engaged, described car Make described power source stop and continuing to travel,
Described controller of vehicle is characterised by,
Described controller of vehicle possesses control unit, and described control unit controls as follows: Have input the instruction of described clutch separation is being started institute by depressing described clutch pedal After stating the starting control of power source, the selection at described gear becomes the state beyond neutral gear In the case of or in the case of the power shaft rotating speed of described variator becomes more than predetermined value, will Described clutch separation.
Controller of vehicle the most according to claim 1, it is characterised in that
Described vehicle possesses the motor that can make described mover starts, and described control unit is entered Row is following to be controlled: have input the instruction of described clutch separation and is performing described clutch Separation after, make described mover starts by described motor, and at described gear In the case of being chosen as the state of neutral gear, described clutch is made automatically to engage at least one times.
Controller of vehicle the most according to claim 1, it is characterised in that
Described vehicle possesses the motor that can make described power source action, and described control unit is entered Row is following to be controlled: when have input the instruction by described clutch separation, by described motor Make described power source action, in the case of the state that described gear becomes beyond neutral gear, make institute State power source independent operation.
CN201610069039.8A 2015-03-02 2016-02-01 Controller of vehicle Active CN105936263B (en)

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