WO2012057085A1 - ハイブリッド車両の制御装置 - Google Patents
ハイブリッド車両の制御装置 Download PDFInfo
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- WO2012057085A1 WO2012057085A1 PCT/JP2011/074446 JP2011074446W WO2012057085A1 WO 2012057085 A1 WO2012057085 A1 WO 2012057085A1 JP 2011074446 W JP2011074446 W JP 2011074446W WO 2012057085 A1 WO2012057085 A1 WO 2012057085A1
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- clutch
- generator
- motor
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- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/93—Conjoint control of different elements
Definitions
- the present invention relates to a hybrid vehicle control device including an internal combustion engine and a motor / generator as drive sources.
- An electric travel (EV) mode in which an internal combustion engine and a motor / generator are provided as drive sources and travels only by power from the motor / generator; and a hybrid travel (HEV) mode in which travels by power from the internal combustion engine and the motor / generator , Hybrid vehicles are known.
- JP2007-69817A has an internal combustion engine, a motor / generator, and a transmission arranged in series, and a first clutch is provided between the internal combustion engine and the motor / generator.
- a configuration in which a second clutch is interposed between the transmission and the transmission is disclosed.
- JP2007-69817A hybrid vehicle control device releases the first clutch and fastens the second clutch in the EV mode, and fastens the first clutch and the second clutch in the HEV mode. Then, when the driver depresses the accelerator pedal during the EV mode and the output of the internal combustion engine becomes necessary, or when the battery charge amount decreases, the EV mode is switched to the HEV mode.
- this control device starts the internal combustion engine by cranking with the drag torque of the first clutch while the second clutch is slipped.
- the second clutch By slipping the second clutch in this way, it is possible to prevent the torque fluctuation at the start of the internal combustion engine from being transmitted to the driving wheel by engaging the first clutch.
- JP 2007-69817A assumes that the accelerator pedal remains depressed when the accelerator pedal is depressed to switch from the EV mode to the HEV mode.
- the second clutch is engaged after the internal combustion engine is started and the slip state is maintained until the engine torque is stabilized and the second clutch engagement hydraulic pressure can be secured.
- the slip control of the second clutch is also started in order to absorb the torque fluctuation accompanying the start of the internal combustion engine, and this slip control is continued until the engine torque is stabilized as described above. Therefore, even if the internal combustion engine is stopped immediately after the complete explosion due to the accelerator pedal being turned off, the feeling of deceleration does not occur until the slip of the second clutch is eliminated.
- Patent Document 1 there is room for improvement in shortening the time until a feeling of deceleration occurs when the accelerator pedal is released during the start of the internal combustion engine when switching from the EV mode to the HEV mode. There is.
- the slip amount of the second clutch when the accelerator opening decreases during the second clutch control when the internal combustion engine is started to switch the mode from the electric travel mode to the hybrid travel mode, the slip amount of the second clutch
- the torque of the motor / generator acting in the direction of reducing the acceleration becomes larger than when the accelerator opening is not reduced during the slip control.
- FIG. 1 is a schematic plan view showing a power train of a hybrid vehicle to which the present invention can be applied.
- FIG. 2 is a schematic plan view showing a power train of another hybrid vehicle to which the present invention can be applied.
- FIG. 3 is a schematic plan view showing a power train of still another hybrid vehicle to which the present invention can be applied.
- FIG. 4 is a block diagram showing the control system for the power train shown in FIG.
- FIG. 5 is a functional block diagram of the integrated controller in the control system.
- FIG. 6 is a flowchart showing a control program executed by the operating point command unit in the functional block diagram.
- FIG. 7 is a characteristic diagram of the target driving force used when the target driving force is obtained in the flowchart of FIG. FIG.
- FIG. 8 is an area diagram showing an electric travel (EV) mode area and a hybrid travel (HEV) mode area of the hybrid vehicle.
- FIG. 9 is a characteristic diagram showing a target charge / discharge amount characteristic with respect to a battery storage state of the hybrid vehicle.
- FIG. 10 is a shift diagram of an automatic transmission mounted on a hybrid vehicle.
- FIG. 11 is a characteristic diagram illustrating the maximum allowable torque of the internal combustion engine mounted on the hybrid vehicle.
- FIG. 12 is a mode transition map when the hybrid vehicle is switched from the electric travel (EV) mode to the hybrid travel (HEV) mode.
- FIG. 13 is an operation time chart according to the control program shown in FIG. 6 when shifting from the electric travel (EV) mode to the hybrid travel (HEV) mode in accordance with the accelerator operation.
- FIG. 14 is a diagram for explaining a method of setting the target motor / generator rotational speed.
- FIG. 15 is a time chart showing the result of executing the conventional motor / generator speed control.
- FIG. 16 is a time chart showing the result of executing the rotation speed control of the motor / generator of the present invention.
- FIG. 1 shows a power train of a front engine / rear wheel drive vehicle (rear wheel drive hybrid vehicle) provided with a hybrid drive device to which the internal combustion engine start control device of the present invention can be applied.
- the internal combustion engine 1 is disposed on the front side in the vehicle longitudinal direction and the automatic transmission 3 is disposed on the rear side in the same manner as a normal rear wheel drive vehicle.
- a motor / generator 5 is connected to the shaft 4 for transmitting the rotation from 1a) to the input shaft 3a of the automatic transmission 3.
- the motor / generator 5 acts as a motor or acts as a generator (generator), and is disposed between the internal combustion engine 1 and the automatic transmission 3.
- a first clutch 6 is inserted between the motor / generator 5 and the internal combustion engine 1, more specifically between the shaft 4 and the internal combustion engine crankshaft 1 a, and the internal combustion engine 1 and the motor / The generators 5 are detachably coupled.
- the first clutch 6 can change the transmission torque capacity continuously or stepwise.
- the first clutch 6 can control the clutch hydraulic oil flow rate and the clutch operation oil pressure continuously or stepwise with a proportional solenoid to transfer torque capacity. It is composed of a wet multi-plate clutch that can be changed.
- a second clutch 7 is inserted between the motor / generator 5 and the automatic transmission 3, and more specifically, between the shaft 4 and the transmission input shaft 3 a, and the motor / generator 5 and the automatic transmission are inserted by the second clutch 7. 3 are detachably connected.
- the second clutch 7 can change the transmission torque capacity continuously or stepwise.
- a proportional solenoid controls the clutch hydraulic fluid flow rate and the clutch hydraulic pressure continuously or stepwise.
- a wet multi-plate clutch whose transmission torque capacity can be changed.
- the automatic transmission 3 is the same as that described in pages C-9 to C-22 on the "Skyline New Car (CV35) Manual” issued by Nissan Motor Co., Ltd. in January 2003.
- friction elements such as clutches and brakes
- the transmission system path (shift stage) is determined by the combination of engagement and release of these friction elements.
- the automatic transmission 3 shifts the rotation from the input shaft 3a with a gear ratio corresponding to the selected shift speed and outputs it to the output shaft 3b.
- This output rotation is distributed and transmitted to the left and right rear wheels 2 by the differential gear device 8 and used for traveling of the vehicle.
- the automatic transmission 3 is not limited to the stepped type as described above, and may be a continuously variable transmission.
- the rotation from the transmission output shaft 3b then reaches the rear wheel 2 via the differential gear device 8, and the vehicle can be electrically driven (EV traveling) only by the motor / generator 5.
- both the first clutch 6 and the second clutch 7 are engaged, and the automatic transmission 3 is brought into a power transmission state.
- HEV travel hybrid travel
- both the output rotation from the internal combustion engine 1 and the output rotation from the motor / generator 5 reach the transmission input shaft 3a, and the automatic transmission 3 selects the rotation to the input shaft 3a.
- the speed is changed according to the shift speed and output from the transmission output shaft 3b.
- HEV travel Hybrid-driven
- the internal combustion engine 1 When the internal combustion engine 1 is operated with the optimum fuel consumption during the HEV traveling, when the energy becomes surplus, the surplus energy is converted into electric power by operating the motor / generator 5 as a generator by this surplus energy, and this generated power Is stored for use in driving the motor of the motor / generator 5, so that the fuel consumption of the internal combustion engine 1 can be improved.
- the first clutch 7 for releasably coupling the motor / generator 5 and the drive wheel 2 is interposed between the motor / generator 5 and the automatic transmission 3, but as shown in FIG. Even if the clutch 7 is interposed between the automatic transmission 3 and the differential gear device 8, the same function can be achieved.
- a dedicated second clutch 7 is added before or after the automatic transmission 3, but instead, as the second clutch 7, as shown in FIG.
- the friction element for selecting the forward shift stage or the friction element for selecting the reverse shift stage existing in the machine 3 may be used.
- the automatic transmission is brought into a power transmission state when engaged so as to fulfill this function.
- the top is very advantageous.
- the internal combustion engine 1, the motor / generator 5, the first clutch 6, and the second clutch 7 constituting the power train of the hybrid vehicle shown in FIGS. 1 to 3 are controlled by a system as shown in FIG.
- the control system of FIG. 4 includes an integrated controller 20 that performs integrated control of the operating point of the power train, and the operating point of the power train is set to the target engine torque tTe and the target motor / generator torque tTm (even with the target motor / generator rotational speed tNm).
- the integrated controller 20 receives a signal from the engine speed sensor 11 that detects the engine speed Ne and a motor / generator speed sensor 12 that detects the motor / generator speed Nm. , A signal from the input rotation sensor 13 for detecting the transmission input rotation speed Ni, a signal from the output rotation sensor 14 for detecting the transmission output rotation speed No, and an accelerator representing the required load state of the internal combustion engine 1 A signal from the accelerator opening sensor 15 for detecting the pedal depression amount (accelerator opening APO) and a storage state for detecting a storage state SOC (carryable power) of the battery 9 for storing the electric power for the motor / generator 5 The signal from the sensor 16 is input.
- the engine rotation sensor 11, the motor / generator rotation sensor 12, the input rotation sensor 13, and the output rotation sensor 14 can be arranged as shown in FIGS.
- the integrated controller 20 can realize the driving force of the vehicle desired by the driver from the accelerator opening APO, the battery storage state SOC, and the transmission output speed No (vehicle speed VSP) among the input information.
- (EV mode, HEV mode) is selected, target engine torque tTe, target motor / generator torque tTm (may be target motor / generator rotation speed tNm), target first clutch transmission torque capacity tTc1, and target second clutch transmission
- Each of the torque capacities tTc2 is calculated.
- the target engine torque tTe is supplied to the engine controller 21, and the target motor / generator torque tTm (may be the target motor / generator rotation speed tNm) is supplied to the motor / generator controller 22.
- the engine controller 21 controls the internal combustion engine 1 so that the engine torque Te becomes the target engine torque tTe, and the motor / generator controller 22 sets the torque Tm (or the rotational speed Nm) of the motor / generator 5 to the target motor / generator torque tTm ( Alternatively, the motor / generator 5 is controlled via the battery 9 and the inverter 10 so that the target motor / generator rotational speed tNm) is obtained.
- the integrated controller 20 supplies a solenoid current corresponding to the target first clutch transmission torque capacity tTc1 and the target second clutch transmission torque capacity tTc2 to an engagement control solenoid (not shown) of the first clutch 6 and the second clutch 7,
- the first clutch 6 and the first clutch 6 so that the transmission torque capacity Tc1 of the first clutch 6 matches the target transmission torque capacity tTc1, and the transmission torque capacity Tc2 of the second clutch 7 matches the target second clutch transmission torque capacity tTc2.
- the second clutch 7 is individually controlled for fastening force.
- the integrated controller 20 selects the above-described operation mode (EV mode, HEV mode), the target engine torque tTe, the target motor / generator torque tTm (may be the target motor / generator rotation speed tNm), and the target first clutch transmission torque capacity. Calculation of tTc1 and target second clutch transmission torque capacity tTc2 is executed as shown in the functional block diagram of FIG.
- the target driving force calculator 30 calculates a steady target driving force tFo0 from the accelerator opening APO and the vehicle speed VSP using the target driving force map shown in FIG.
- the operation mode selection unit 40 determines a target operation mode from the accelerator opening APO and the vehicle speed VSP using the EV-HEV region map shown in FIG.
- the HEV mode is selected at high load / high vehicle speed
- the EV mode is selected at low load / low vehicle speed
- the accelerator opening APO and EV When the driving point determined by the combination of the vehicle speed VSP exceeds the EV ⁇ HEV switching line and enters the HEV region, the mode is switched from the EV mode to the HEV mode, and the driving point exceeds the HEV ⁇ EV switching line during HEV driving. When entering the EV area, the mode is switched from the HEV mode to the EV mode.
- the operating point command unit 60 uses the accelerator opening APO, the target driving drive tFo0, the target operation mode, the vehicle speed VSP, and the target charging / discharging power tP as the operating point reaching target, so that the operation point instruction is transient.
- the target engine torque tTe, the target motor / generator torque tTm, the target solenoid current IS1 of the first clutch 6, the target transmission torque capacity tTc2 of the second clutch 7, and the target shift speed SHIFT are calculated.
- the shift control unit 70 is inputted with the target second clutch transmission torque capacity tTc2 and the target shift speed SHIFT, and the automatic transmission 3 so as to achieve the target second clutch transmission torque capacity tTc2 and the target shift speed SHIFT. Drive the corresponding solenoid valve in the. As a result, the automatic transmission 3 in FIG. 3 enters the power transmission state in which the target shift speed SHIFT is selected while the second clutch 7 is engaged and controlled to achieve the target second clutch transmission torque capacity tTc2.
- the operating point command unit 60 executes the control program shown in FIG. 6 to perform the transient target engine torque tTe, the target motor / generator torque tTm, the first clutch target solenoid current IS1, and the target first torque.
- the 2-clutch transmission torque capacity tTc2 and the target shift speed SHIFT are calculated.
- step S61 the operating point command unit 60 calculates a transient target driving force tFo required to shift from the current driving force to the above-described reached target driving force tFo0 with a predetermined seasoning response.
- a transient target driving force tFo required to shift from the current driving force to the above-described reached target driving force tFo0 with a predetermined seasoning response.
- an output obtained by passing the ultimate target driving force tFo0 through a low-pass filter having a predetermined time constant can be set as the transient target driving force tFo.
- the operating point command unit 60 obtains the target input torque tTi of the automatic transmission 3 necessary for obtaining the transient target driving force tFo by calculating the following equation.
- Rt is the effective tire radius of the drive wheel 2
- iG is the gear ratio of the automatic transmission 3 determined by the currently selected shift speed.
- step S63 the operating point command unit 60 selects an operation mode according to the target operation mode determined by the operation mode selection unit 40 of FIG. If the target operation mode is the EV mode, the EV mode is selected. If the target operation mode is the HEV mode, the HEV mode is selected. When the target operation mode becomes the EV mode during traveling in the HEV mode, the mode is switched from the HEV mode to the EV mode. When the target operation mode becomes the HEV mode during the traveling in the EV mode, the state shown in FIG. By performing mode switching as will be described later according to the transition diagram, mode switching from the EV mode to the HEV mode accompanying the start of the internal combustion engine 1 according to the present invention is executed.
- step S64 the operating point command unit 60 determines the target shift speed SHIFT from the accelerator opening APO and the vehicle speed VSP using the planned shift map illustrated in FIG. 10, and sends this to the shift control unit 70 in FIG.
- the automatic transmission 3 is shifted to the target shift stage SHIFT by commanding.
- a solid line is an upshift line between adjacent gears
- a broken line is a downshift line between adjacent gears.
- the shift request is not executed until the mode switch ends. It is assumed that the corresponding shift is performed after the mode switching.
- step S65 the operating point command unit 60 obtains the target engine torque tTe as follows.
- the ideal engine torque tTeO is calculated from the target input torque tTi obtained in step S62, the input rotational speed Ni of the automatic transmission 3, and the engine rotational speed Ne using the following equation.
- the maximum engine torque Temax corresponding to the engine speed Ne is obtained, and the ideal engine torque tTe0 obtained by the above equation is limited so as not to exceed the maximum engine torque Temax. This is set as the target engine torque tTe. In the EV mode, no engine torque is required, so the target engine torque tTe is set to zero.
- the target engine torque tTe is determined according to the operation during mode switching, which will be described in detail later.
- the target engine torque tTe determined as described above is instructed to the engine controller 21 in FIG. 4, and the engine controller 21 controls the internal combustion engine 1 so that the target engine torque tTe is realized.
- step S66 corresponding to the motor / generator control means in the present invention, the operating point command unit 60 calculates the target motor / generator torque tTm using the following formula if it is in either the EV mode or the HEV mode.
- the target motor / generator torque tTm is determined according to the operation during the mode switching described later.
- the target motor / generator torque tTm determined as described above is instructed to the motor / generator controller 22 of FIG. 4, and the motor / generator controller 22 instructs the motor / generator 5 to achieve the target motor / generator torque tTm. 10 to control.
- step S67 corresponding to the first clutch engagement control means in the present invention, the operating point command unit 60 determines the target transmission torque capacity tTc1 of the first clutch 6 as follows.
- the target transmission torque capacity tTc1 is set to zero. In the HEV mode, the first clutch 6 is engaged, and thus the target first clutch transmission torque capacity tTc1. To the maximum value. If the mode is being switched, the target first clutch transmission torque capacity tTc1 is determined in accordance with an operation during mode switching to be described later.
- the target first clutch transmission torque capacity tTc1 determined as described above is converted into the target first clutch solenoid current IS1 shown in FIG. 5 and used for the engagement control of the first clutch 6 as shown in FIG.
- the clutch 6 is controlled to be engaged so as to achieve the target first clutch transmission torque capacity tTc1.
- step S68 corresponding to the second clutch engagement control means in the present invention, the operating point command unit 60 determines the target transmission torque capacity tTc2 of the second clutch 7 as follows.
- the target second clutch transmission torque capacity tTc2 is set to the maximum driving force equivalent value EVTmax (second clutch maximum transmission torque capacity during EV) in the EV mode, and in the HEV mode, the target second clutch transmission torque capacity.
- EVTmax second clutch maximum transmission torque capacity during EV
- tTc2 is set to the maximum value.
- the target second clutch transmission torque capacity tTc2 is determined according to the operation during the mode change to be described later.
- the target second clutch transmission torque capacity tTc2 determined as described above is used for the engagement control of the second clutch 7 via the shift control unit 70 of FIG. 5, and the second clutch 7 is used as the target second clutch transmission torque capacity tTc2.
- the fastening is controlled so that is realized.
- the target second clutch transmission torque capacity tTc2 is commanded to the shift control unit 70 of FIG. 5 together with the target shift stage SHIFT, and is used for shift control of the automatic transmission 3 to the target shift stage SHIFT.
- the accelerator opening APO is increased as shown in FIG. 13 (the target driving force is increased).
- the operating point changes from point A to point A ′ in FIG.
- the mode switching from the EV mode to the HEV mode occurs, the mode switching is first started from the EV mode to the mode 2301b as shown in FIGS. 12 and 13, and then the modes 2303 to 2307 are changed. Then, the HEV mode is reached.
- the driving point changes from, for example, the point B to the point B ′ in FIG. 8 and the target mode becomes the HEV mode.
- the mode switching from the EV mode to the HEV mode occurs, or even if the operating point remains fixed at the point C in FIG. 8, for example, the battery storage state SOC decreases, so that the target mode becomes the HEV mode and the EV becomes
- the EV mode first transits to the mode 2301a to start the mode switching, and then reaches the HEV mode through the mode 2302a (mode 2302a1 or 2302a2) and the modes 2303 to 2307. .
- this mode switching is a request for switching from the EV mode to the HEV mode (engine start request) by depressing the accelerator pedal, a highly responsive mode switch that can increase the driving force more quickly than the smooth mode switch (engine start) ( Engine start) is desired.
- the mode is switched to the mode 2301b, and the mode switching is started.
- the driving within the range in which the second clutch 7 can share is performed.
- the force is generated in the EV mode, and when the driving force exceeds the range in which the second clutch 7 can be shared, the second clutch 7 is controlled to slide out as soon as possible.
- the target first clutch transmission torque capacity tTc1 is set within the range represented by the following equation. .
- Tmmax is the maximum torque of the motor / generator 5.
- the torque transmitted by the second clutch 7 before and after the second clutch 7 starts to slide is switched continuously or stepwise from the torque by the motor / generator 5 to the transmission torque capacity Tc2 of the second clutch 7, so that the driving force is reduced. It does not have a step, and its continuity is ensured.
- the transmission torque capacity Tc2 of the second clutch 7 must be within a driving force range that can be output in the EV mode.
- the engagement hydraulic pressure of the second clutch 7 is set to the driving force range that can be output in the EV mode. The time for lowering can be omitted, and the response to an increase in driving force due to engine start is improved.
- Second clutch engagement control When the second clutch 7 is slipping, the output torque of the second clutch becomes the second clutch transmission torque capacity no matter what torque fluctuation occurs on the input side of the second clutch 7.
- the target second clutch transmission torque capacity tTc2 is determined by the following equation:
- the target second clutch transmission torque capacity tTc2 is increased in accordance with the increase of the transient target driving force tFo (target transmission input torque tTi) as shown in FIG.
- the target transmission torque capacity tTc1 of the first clutch 6 in the mode 2303 is set to a value within the range represented by the following equation in order to maintain an increase in driving force and a stable slip of the second clutch 7.
- Tc1min ⁇ tTc1 ⁇ Tmmax-tTc2 Tmmax-tTi (7)
- Tc1min is an engine friction value before engine ignition, and zero after engine ignition.
- Rotational speed control of the motor / generator 5 is performed using a PI controller (P: proportional control, I: integral control) so that the motor / generator rotational speed Nm matches the target value tNm.
- P proportional control
- I integral control
- the motor / generator torque tTm changes in accordance with the clutch torque fluctuation when the first clutch 6 is engaged, and the rotational speed control of the motor / generator 5 is stably performed. Can do.
- the motor / generator torque tTm changes so as to suppress this rotational fluctuation after the rotational fluctuation occurs due to the drag torque load of the first clutch 6, so that the first motor / generator torque tTm generates the first fluctuation.
- the rotational fluctuation (torque fluctuation) compensation of the clutch 6 the amount of temporary decrease in the motor / generator rotational speed increases, so it is necessary to secure a larger slip amount in the second clutch 7.
- the target first clutch transmission torque capacity tTc1 it is preferable to add a component that compensates for torque fluctuation of the first clutch 6 to the target motor / generator torque tTm by feedforward control.
- a disturbance observer based on the rotational inertia system of the motor / generator is used to generate a torque other than the motor / generator torque acting on the motor / generator 5. It is also possible to perform disturbance estimation by considering it as a disturbance, and cancel the disturbance by correcting the motor / generator torque with this disturbance estimated value.
- the target motor / generator torque tTm is equal to the driving force (the transmission torque capacity tTc2 of the second clutch 7).
- the motor / generator 5 is controlled to be open so as to be larger than the value obtained by adding the drag torque compensation amount tTc1 of the first clutch 6.
- the mode 2303 changes to the mode 2304 at the timing t3 in FIG. 13 when the engine speed Ne becomes equal to or higher than the motor / generator speed Nm to suppress overshoot of the engine speed Ne.
- the second clutch 7 is stably maintained in the slip state even when the engagement of the first clutch 6 is completed. Therefore, the engagement of the first clutch 6 is completed or the rotation difference between the front and rear of the clutch is reversed and Even if the transmission torque of the first clutch 6 changes suddenly, it is possible to avoid transmission of fluctuations in the transmission torque of the first clutch accompanying them to the automatic transmission 3, and it is possible to start the engine without a shock and to generate heat of the second clutch 7. Can be suppressed.
- the target second clutch transmission torque capacity tTc2 in the mode 2304 is determined as represented by the above-described equation (6), and is set as shown in FIG. 13 according to the transient target driving force tFo.
- the target motor / generator rotation speed tNm is obtained by the above equation (8) so as to achieve the target second clutch slip amount dNc2.
- the rotational speed of the motor / generator 5 is controlled so that the motor / generator rotational speed Nm coincides with the target value tNm, or the target motor / generator torque tTm is equal to the driving force (second
- the motor / generator 5 is controlled to be open so as to be larger than the value obtained by adding the drag torque compensation amount tTc1 of the first clutch 6 to the transmission torque capacity tTc2) of the clutch 7.
- ⁇ Condition for transition to next mode 2305 After timing t3 in FIG. 13 when the engine speed Ne becomes equal to or higher than the motor / generator speed Nm, it is determined that the engine speed Ne and the motor / generator speed Nm are substantially the same over a predetermined time in FIG. At timing t4, the mode 2304 is shifted to the mode 2305 based on the determination that the first clutch 6 is securely engaged.
- the second clutch 7 is stably maintained in the slip state even when the engagement of the first clutch 6 is completed. Therefore, the engagement of the first clutch 6 is completed or the rotation difference between the front and rear of the clutch is reversed and Even if the transmission torque of the first clutch 6 changes suddenly, it is possible to avoid transmission of fluctuations in the transmission torque of the first clutch accompanying them to the drive wheels 2, and it is possible to start the engine without a shock and to generate heat of the second clutch 7. Can be suppressed.
- the target second clutch transmission torque capacity tTc2 in the mode 2305 is determined as expressed by the above-described equation (6), and is set as shown in FIG. 13 according to the transient target driving force tFo.
- ⁇ Condition for transition to next mode 2306 It is determined that the engine rotational speed Ne and the motor / generator rotational speed Nm are substantially the same over a predetermined time (determining completion of engagement of the first clutch 6). After timing t4 in FIG. 13, the motor / generator rotational speed Nm 13 is determined to be close to the target motor / generator rotation speed tNm for a predetermined time, and the second clutch 7 is in a slip state in which rotation overshoot and torque fluctuation are suppressed and the second clutch 7 is stabilized at a constant speed. Transition from mode 2305 to mode 2306 is made based on the determination that the torque input from the internal combustion engine and motor / generator 5 to the second clutch 7 and the second clutch transmission torque capacity Tc2 are substantially the same.
- the purpose of setting the slip state of the second clutch 7 not to be zero from the beginning but to the predetermined slip state is that the slip direction of the second clutch 7 is caused by the undershoot of the motor / generator rotational speed. This is to prevent the drive force variation from occurring in the reverse direction.
- the target second clutch transmission torque capacity tTc2 in the mode 2306 is determined as represented by the above-described equation (6), and is set as shown in FIG. 13 according to the transient target driving force tFo.
- Control of motor / generator 5 In the motor / generator control in mode 2306, the target second clutch slip amount dNc2 is gradually reduced to zero so that the changing speed of the target second clutch slip amount dNc2 becomes smaller as the target second clutch slip amount dNc2 decreases.
- the target motor / generator rotational speed tNm is determined by the above-described equation (8), and the rotational speed of the motor / generator 5 is controlled so that the motor / generator rotational speed Nm matches the target value tNm.
- the second clutch 7 is re-engaged when the target second clutch slip amount dNc2 is close to zero, the second clutch 7 is input from the internal combustion engine 1 and the motor / generator 5.
- the second clutch 7 is re-engaged in a state where the torque and the second clutch transmission torque capacity tTc2 substantially coincide with each other, and the transmission torque of the second clutch 7 is changed from the transmission torque capacity Tc2 to the engine torque and the motor / generator torque. Even when the combined torque is switched, torque fluctuation when the second clutch 7 is reengaged can be suppressed.
- the target transmission torque capacity tTc2 of the second clutch 7 is set to be equal to or less than the allowable driving force fluctuation as shown in FIG. It is gradually increased by open control, and the second clutch 7 is re-engaged while smoothly eliminating the slip amount of the second clutch 7.
- the second clutch 7 can be smoothly re-engaged without a shock, and the mode switching from the EV mode to the HEV mode accompanying the engine start can be completed.
- the target motor / generator torque tTm and the motor in the HEV mode at the end t7 of the mode 2307 / Deviation ⁇ Tm occurs between the generator torque Tm.
- the internal combustion engine 1 is cranked and started by the drag torque of the first clutch 6 while the second clutch 7 is slipped, and the second clutch 7 is engaged after the start. To do.
- slipping the second clutch 7, it is possible to prevent torque fluctuations accompanying the start of the internal combustion engine 1 and the progress of the engagement of the first clutch 6 from being transmitted to the drive wheels.
- the accelerator pedal is returned and the EV mode is selected again during the start-up operation of the internal combustion engine 1 accompanying the switching from the EV mode to the HEV mode due to an increase in the accelerator opening (hereinafter simply referred to as “the accelerator pedal has been returned”).
- the accelerator pedal is stopped after the completion of the engine start, but the feeling of deceleration does not occur until the second clutch 7 is engaged. Therefore, the following control is performed in order to promptly generate a feeling of deceleration.
- FIG. 14 shows the behavior of the target rotational speed tNm and the actual rotational speed after the first clutch 6 is engaged when the rotational speed control of the motor / generator 5 is performed based on the target rotational speed tNm of the motor / generator 5.
- FIG. The solid line in the figure shows the result of performing the same control as when the accelerator pedal is kept depressed, and the broken line shows the result of performing the control when the accelerator pedal is returned during the starting operation.
- Whether the accelerator pedal has been returned during the starting operation can be determined based on the detection signal of the accelerator opening sensor 15.
- the mode selection unit 40 selects switching from the HEV mode to the EV mode. Therefore, it can be determined that the accelerator pedal has been returned when the switching is selected. In any of the determination methods, it can be determined that the accelerator pedal has been returned without providing a new detection means.
- the operating point command unit 60 sets a change characteristic of the target motor / generator rotation speed tNm in order to converge the slip rotation of the second clutch 7. Specifically, the peak value of the target slip rotational speed, the slope to reach the peak value (first slope), the time for maintaining the peak value, the slope from the peak value to the convergence to the transmission input rotational speed (the first slope) 2 tilts) is set with reference to a table created in advance.
- the accelerator pedal When the accelerator pedal is kept depressed, the torque fluctuation and the like accompanying the start of the internal combustion engine 1 are absorbed, so that the slip of the second clutch 7 is maintained until the engine torque is stabilized and the hydraulic pressure of the second clutch 7 can be secured. Then, it is necessary to fasten the second clutch 7 thereafter.
- the change characteristic of the target motor / generator rotation speed tNm is set based on the same concept, the change characteristic shown by the solid line in FIG. 14 is obtained. That is, the target motor / generator rotational speed tNm is maintained at a rotational speed higher than the transmission input rotational speed for a predetermined time, and thereafter changes to a transmission characteristic that decreases to the transmission input rotational speed.
- the peak value of the target slip rotational speed is set to a value lower than the transmission input rotational speed Ni as shown by the broken line in FIG.
- the peak value of the target slip rotation speed is set by multiplying the transmission input rotation speed Ni by a coefficient set in advance for each of the currently selected shift speed and accelerator opening, and the coefficient increases as the return amount of the accelerator pedal increases. If the value is reduced and the accelerator pedal is released, the coefficient is a negative value.
- the first slope, the second slope, and the peak value maintenance time are also set in advance by creating a table in which these are set for each accelerator opening.
- FIG. 15 shows a change characteristic of the target motor / generator rotation speed tNm when a request for starting the internal combustion engine 1 is issued as the accelerator opening increases and the accelerator pedal is returned before the start operation is completed. It is a time chart when controlling by the change characteristic of a solid line.
- FIG. 16 is also a time chart when the control is performed with the change characteristic indicated by the broken line in FIG. Timings t1 to t3 in the figure correspond to timings t1 to t3 in FIG.
- the chart of the engagement torque capacity of the second clutch 7 in FIGS. 15 and 16 shows a pattern in which the hydraulic pressure is released when the slip is started, the torque capacity decreases after the start request is made. However, as in FIG. 13, the torque capacity may be kept constant without removing the hydraulic pressure.
- the broken line in the motor / generator rotation speed chart indicates the change characteristic of the target motor / generator rotation speed tNm.
- the time for maintaining the peak value of the target slip rotation speed is zero.
- the target motor / generator rotation speed tNm is reduced to a value lower than the transmission input rotation speed Ni in a short time after timing t3, and the torque of the motor / generator 5 acts greatly on the negative side.
- the actual rotational speed of the motor / generator 5 also starts to decrease rapidly.
- the time until the slip of the second clutch 7 becomes zero is shorter in FIG. 16 than in FIG. 15, and as a result, the time until the acceleration starts to decrease after timing t3, that is, the feeling of deceleration.
- the time until the occurrence of is also shorter in FIG. 16 than in FIG.
- the start operation is similarly continued.
- the torque of the motor / generator 5 acting in the direction of reducing the slip amount of the second clutch 7 does not decrease the accelerator opening during mode switching.
- the motor / generator 5 is controlled so as to be larger than that. Thereby, the time until the slip of the second clutch 7 converges is shortened, and a feeling of deceleration can be generated promptly.
- the motor / generator 5 may set the target rotational speed tNm and control the rotational speed, or may limit the driving torque of the motor / generator 5 during the rotational speed control. Torque control may be performed by setting.
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Abstract
Description
上述した通り早く内燃エンジン1を始動したいので、図13に示すように目標第1クラッチ伝達トルク容量tTc1を増やし、第2クラッチ7がスリップし始める前から、第1クラッチ6の引き摺りトルクにより内燃エンジン1のクランキング(エンジン回転数Ne≧0)を開始する。
上記した通りモード2301bでは、第2クラッチ7が分担可能な範囲の駆動力はEVモードで発生させ、第2クラッチ7が分担可能な範囲を超えた駆動力になったら、できるだけ早く第2クラッチ7が滑り出すようにするため、モード2301bでの目標第2クラッチ伝達トルク容量tTc2を、図13に示すようにEVモードでの最大駆動力相当値EVTmaxに維持する。
モード2301bでは、エンジン始動前のため、モード2301bでの目標エンジントルクtTeを図13に示すようにゼロとする。
モード2301bでは第1クラッチ6の引き摺りトルクによる駆動力低下を抑制するため、目標モータ/ジェネレータトルクtTmとして、過渡目標駆動力tFoを実現する目標変速機入力トルクtTiに第1クラッチ6の引き摺りトルク補償分tTc1を加算して得られる、次式で表されるトルク値を図13のように与える。
上記の制御中、アクセル開度APOの増大に伴う目標変速機入力トルクtTiの上昇に呼応した目標モータ/ジェネレータトルクtTmの上昇で、モータ/ジェネレータ5から第2クラッチ7に入力されるトルクがEVモードでの最大駆動力相当値に維持されたEV時第2クラッチ最大伝達トルク容量EVTmaxを超えると、第2クラッチ7が滑り始める。このように第2クラッチ7が滑り始めた図13のタイミングt2において前記のモード2301bから次のモード2303へと遷移する。
第2クラッチ7が滑っているときには、第2クラッチ7の入力側で如何なるトルク変動が発生しようとも、第2クラッチの出力トルクは第2クラッチ伝達トルク容量となる。
モード2303での第1クラッチ6の目標伝達トルク容量tTc1は、駆動力の上昇と、第2クラッチ7の安定的なスリップを維持するため、次式で表される範囲内の値とする。
モード2303では内燃エンジン1がクランキングされていることから、内燃エンジン1が始動されるような制御を行う。
モード2303でのモータ/ジェネレータ制御に当たっては、例えば、第2クラッチ7の目標スリップ量dNc2を達成するための目標モータ/ジェネレータ回転数tNmを次式により求め、
上記の制御中、エンジン回転数Neがモータ/ジェネレータ回転数Nm以上になる図13のタイミングt3に、エンジン回転数Neのオーバーシュート抑制のためモード2303からモード2304へと遷移する。
このモード2304では第2クラッチ7が未だ滑っているため、変速機入力トルクTiは第2クラッチ伝達トルク容量tTc2と同じである。
モード2304では上記の通り第1クラッチ6が締結を完了していることから、当該モードでの目標第1クラッチ伝達トルク容量tTc1は、図13に示すように最大伝達トルク容量とする。
《内燃エンジン1の制御》
モード2304では第1クラッチ6が締結を完了し、エンジン始動後であることから、目標エンジントルクtTeとしてHEVモードでの目標エンジントルクを設定する。
モード2304でのモータ/ジェネレータ制御に当たっては、前記したモード2303におけると同様、例えば、目標第2クラッチスリップ量dNc2を達成するように目標モータ/ジェネレータ回転数tNmを前記した式(8)により求め、モータ/ジェネレータ回転数Nmがこの目標値tNmに一致するようモータ/ジェネレータ5を回転数制御したり、目標モータ/ジェネレータトルクtTmが前記した式(5)に示すように、駆動力分(第2クラッチ7の伝達トルク容量tTc2)に第1クラッチ6の引き摺りトルク補償分tTc1を加えた値より大きくなるよう、モータ/ジェネレータ5をオープン制御する。
エンジン回転数Neがモータ/ジェネレータ回転数Nm以上になった図13のタイミングt3以後、エンジン回転数Neとモータ/ジェネレータ回転数Nmとが所定時間に亘ってほぼ同じであると判定する図13のタイミングt4に、第1クラッチ6の締結が確実に完了したとの判断にもとづき、モード2304からモード2305へと遷移する。
このモード2305では第2クラッチ7が未だ滑っているため、変速機入力トルクTiは第2クラッチの伝達トルク容量tTc2と同じ値になる。
モード2305では上記の通り第1クラッチ6が締結を完了していることから、当該モードでの目標第1クラッチ伝達トルク容量tTc1は、図13に示すように最大伝達トルク容量とする。
モード2305では第1クラッチ6が締結を完了し、エンジン始動後であることから、目標エンジントルクtTeとしてHEVモードでの目標エンジントルクを設定する。
モード2305でのモータ/ジェネレータ制御に当たっては、後続のモード2306,2307での滑らかな第2クラッチ7の締結に備えるため、第2クラッチ7の目標スリップ量dNc2を安定して達成するように、目標モータ/ジェネレータ回転数tNmを前記した式(8)により求め、モータ/ジェネレータ回転数Nmがこの目標値tNmに一致するようモータ/ジェネレータ5の回転数制御を行う。
エンジン回転数Neとモータ/ジェネレータ回転数Nmとが所定時間に亘ってほぼ同じであると判定する(第1クラッチ6の締結完了を判定する)図13のタイミングt4以後、モータ/ジェネレータ回転数Nmが所定時間に亘って目標モータ/ジェネレータ回転数tNm近傍と判定する図13のタイミングt5に、回転のオーバーシュートやトルクの変動が抑えられ第2クラッチ7が一定速に安定したスリップ状態であって、内燃エンジンおよびモータ/ジェネレータ5から第2クラッチ7へ入力されるトルクと第2クラッチ伝達トルク容量Tc2とがほぼ同じであるとの判断のもと、モード2305からモード2306へと遷移する。
このモード2306では第2クラッチ7が未だ滑っているため、変速機入力トルクTiは第2クラッチの伝達トルク容量tTc2と同じ値になる。
モード2306では上記の通り第1クラッチ6が締結を完了していることから、当該モードでの目標第1クラッチ伝達トルク容量tTc1は、図13に示すように最大伝達トルク容量とする。
モード2306では第1クラッチ6が締結を完了し、エンジン始動後であることから、目標エンジントルクtTeとしてHEVモードでの目標エンジントルクを設定する。
モード2306でのモータ/ジェネレータ制御に当たっては、目標第2クラッチスリップ量dNc2の変化速度が、目標第2クラッチスリップ量dNc2の減少に伴って小さくなるよう、目標第2クラッチスリップ量dNc2を徐々にゼロまで減らしながら、目標モータ/ジェネレータ回転数tNmを前記した式(8)により決定し、モータ/ジェネレータ回転数Nmがこの目標値tNmに一致するようモータ/ジェネレータ5の回転数制御を行う。
図13のタイミングt5以後、目標第2クラッチスリップ量dNc2が0近傍である状態が所定時間継続したタイミングt6に、第2クラッチ7の再締結を行うためのモード2307へと遷移する。
モータ/ジェネレータ5の回転数制御では、回転センサの精度や外乱トルクによる影響で、確実に第2クラッチ7の前後回転差をゼロにするまでに時間がかかる場合がある。
モード2307では第1クラッチ6が締結状態であることから、当該モードでの目標第1クラッチ伝達トルク容量tTc1は、図13に示すように最大伝達トルク容量とする。
モード2307では第1クラッチ6が締結状態であり、エンジン始動後であることから、目標エンジントルクtTeとしてHEVモードでの目標エンジントルクを設定する。
このモード2307では目標モータ/ジェネレータトルクtTmを図13に示すように、タイミングt6での指令値を保持する。
図13のタイミングt6から所定時間が経過したタイミングt7にHEVモードに遷移して、EVモードからHEVモードへのモード切り換えを終了する。
図1等に示すハイブリッド車両において、EVモードからHEVモードへのモード切り換えの為に内燃エンジン1を始動させる際の、第2クラッチ7の制御中にアクセル開度が減少しても、始動動作を継続する。そして、第2クラッチ7のスリップ量を低減する方向に作用するモータ/ジェネレータ5のトルクが、スリップ締結中にアクセル開度が減少しない場合に比べて大きくなるように、モータ/ジェネレータ5を制御する。
これにより、第2クラッチ7の差回転が0に収束するまでの時間が短縮され、速やかに減速感を発生させることができる。
これにより、第2クラッチ7のスリップが収束するまでの時間が短縮され、速やかに減速感を発生させることができる。
Claims (9)
- 動力源として内燃エンジン(1)およびモータ/ジェネレータ(5)を具え、前記内燃エンジン(1)および前記モータ/ジェネレータ(5)間に伝達トルク容量を連続的もしくは段階的に変更可能な第1クラッチ(6)を介在させ、前記モータ/ジェネレータ(5)および駆動車輪(2)間に伝達トルク容量を連続的もしくは段階的に変更可能な第2クラッチ(7)を介在させ、
前記第1クラッチ(6)を解放すると共に前記第2クラッチ(7)を締結することにより前記モータ/ジェネレータ(5)からの動力のみによる電気走行モードを選択可能で、前記第1クラッチ(6)および前記第2クラッチ(7)を共に締結することにより前記内燃エンジン(1)および前記モータ/ジェネレータ(5)の双方からの動力によるハイブリッド走行モードを選択可能なハイブリッド車両の制御装置であって、
前記電気走行モードでの走行中に前記ハイブリッド走行モードヘモード切り換えするとき前記第1クラッチ(6)を締結進行させる第1クラッチ締結制御手段(20)と、
前記第1クラッチ締結制御手段による前記内燃エンジン(1)の始動時に前記第2クラッチ(7)をスリップ締結させておく第2クラッチ締結制御手段(20)と、
前記電気走行モードから前記ハイブリッド走行モードへの切り換えの為に前記内燃エンジン(1)を始動させる際の前記第2クラッチ(7)の制御中にアクセル開度が減少したら、前記第2クラッチ(7)のスリップ量を低減させる方向に作用するモータ/ジェネレータ(5)のトルクを、前記スリップ締結中にアクセル開度が減少しない場合に比べて大きくするモータ/ジェネレータ制御手段(20)と、
を備えるハイブリッド車両の制御装置。 - 請求項1のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、前記電気走行モードから前記ハイブリッド走行モードへのモード切り換え中の前記内燃エンジン(1)の始動動作開始から完了までの間にアクセル開度が減少したら、前記内燃エンジン(1)と前記モータ/ジェネレータ(5)の回転が同期した後、前記第2クラッチ(7)のスリップ量を低減する方向に作用する前記モータ/ジェネレータ(5)のトルクが、前記モード切り換え中に前記アクセル開度が減少しない場合に比べて大きくなるように前記モータ/ジェネレータ(5)を制御するハイブリッド車両の制御装置。 - 請求項1または2に記載のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、前記モード切り換え中のアクセル開度の減少量が大きいほど、前記第2クラッチ(7)のスリップ量を低減する方向に作用する前記モータ/ジェネレータ(5)のトルクを大きくするハイブリッド車両の制御装置。 - 請求項1から3のいずれかに記載のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、車両運転状態に応じた前記モータ/ジェネレータ(5)の目標回転数を設定し、前記モータ/ジェネレータ(5)の実回転数が前記目標回転数に一致するよう前記モータ/ジェネレータ(5)の回転数を制御し、
前記目標回転数の設定によって前記第2クラッチ(7)のスリップ量を低減する方向に作用する前記モータ/ジェネレータ(5)のトルクの大きさを制御するハイブリッド車両の制御装置。 - 請求項1から3のいずれかに記載のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、車両運転状態に応じた前記モータ/ジェネレータ(5)の目標回転数を設定し、前記モータ/ジェネレータ(5)の実回転数が前記目標回転数に一致するよう前記モータ/ジェネレータ(5)の回転数を制御し、
前記モータ/ジェネレータ(5)の回転数制御中の駆動トルクに制限を設けることにより、前記第2クラッチ(7)のスリップ量を低減する方向に作用する前記モータ/ジェネレータ(5)のトルクの大きさを制御するハイブリッド車両の制御装置。 - 請求項1から3のいずれかに記載のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、車両運転状態に応じた前記モータ/ジェネレータ(5)の目標駆動トルクを設定し、前記モータ/ジェネレータ(5)の実駆動トルクが前記目標駆動トルクに一致するよう前記モータ/ジェネレータ(5)の駆動トルクを制御し、
前記目標駆動トルクに制限を設けることにより前記第2クラッチ(7)のスリップ量を低減する方向に作用する前記モータ/ジェネレータ(5)のトルクの大きさを制御するハイブリッド車両の制御装置。 - 請求項1から6のいずれかに記載のハイブリッド車両の制御装置において、
前記モータ/ジェネレータ制御手段(20)は、前記第1クラッチ(6)の締結完了後に、前記第2クラッチ(7)の前記駆動車輪側の回転数より低い目標モータ/ジェネレータ回転数を設定するハイブリッド車両の制御装置。 - 請求項1から7のいずれかに記載のハイブリッド車両の制御装置において、
前記モード切り換え中にアクセルペダル開度が減少したか否かを、アクセル開度センサ(15)の検出値に基づいて判定するハイブリッド車両の制御装置。 - 請求項1から8のいずれかに記載のハイブリッド車両の制御装置において、
アクセル開度と車速に基づいて前記電気走行モードまたは前記ハイブリッド走行モードのいずれかを選択する走行モード選択手段を備え、
前記モード切り換え中に前記ハイブリッド走行モードから前記電気走行モードが選択された場合に、アクセルペダル開度が減少したと判定するハイブリッド車両の制御装置。
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US8996217B2 (en) | 2015-03-31 |
JP5418690B2 (ja) | 2014-02-19 |
US20130226384A1 (en) | 2013-08-29 |
EP2634057A4 (en) | 2018-05-09 |
EP2634057B1 (en) | 2020-07-15 |
CN103249625A (zh) | 2013-08-14 |
CN103249625B (zh) | 2015-10-21 |
EP2634057A1 (en) | 2013-09-04 |
JPWO2012057085A1 (ja) | 2014-05-12 |
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