WO2011007786A1 - 車両用駆動装置の制御装置 - Google Patents
車両用駆動装置の制御装置 Download PDFInfo
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- WO2011007786A1 WO2011007786A1 PCT/JP2010/061854 JP2010061854W WO2011007786A1 WO 2011007786 A1 WO2011007786 A1 WO 2011007786A1 JP 2010061854 W JP2010061854 W JP 2010061854W WO 2011007786 A1 WO2011007786 A1 WO 2011007786A1
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- gear
- speed
- motor
- gear group
- electric motor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60K6/22—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 apparatus, components or means specially adapted for HEVs
- B60K6/36—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 apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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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
- 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
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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
- 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
- B60W10/113—Stepped gearings with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
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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
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/688—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19014—Plural prime movers selectively coupled to common output
Definitions
- the present invention relates to a control device for a hybrid vehicle drive device.
- AMT a transmission
- AMT-HEV vehicle drive device for a hybrid vehicle having a twin clutch transmission that can be connected to the engine via a motor generator and driven by a motor generator is proposed (see Patent Document 1). ).
- two input shafts 101 and 102 are connected to an engine Eng via clutches C1 and C2, respectively. Further, a motor generator is connected to the input shaft 102. MG is connected. The input shaft 102 is connected to the counter shaft 107 via the low-speed gear train 106 when the dog clutch 105 is engaged, and the input shaft 101 is connected to the counter shaft 107 via the high-speed gear train 109 when the dog clutch 108 is engaged. It is connected to the.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a control device for a vehicle drive device that can prevent over-rotation of the electric motor accompanying a shift change and reduce the load on the electric motor. It is in.
- an internal combustion engine for example, an engine 6 in an embodiment described later
- an electric motor for example, a motor 7 in an embodiment described later
- first connecting / disconnecting means for example, a first clutch 41 in an embodiment described later
- a plurality of gears for example, third-speed drive gear 23a, fifth embodiment in a later-described embodiment
- a first synchronizer for example, a first shift shifter 51 in a later-described embodiment
- a first gear group composed of a speed drive gear 25a and a seventh speed drive gear 97a) and a second connecting / disconnecting means (for example, a second clutch 42 in an embodiment described later) are connected to the internal combustion engine.
- a plurality of gears for example, a second-speed drive gear 22a, a fourth-speed drive gear 24a, a second-speed drive gear 24a, and a second-speed drive gear 24a, which are selectable by a two-synchronizer (for example, a second-shift gear shifter 52 in the later-described embodiment) From 6-speed drive gear 96a)
- a power of at least one of the internal combustion engine and the electric motor is input to the first gear group, and power of the internal combustion engine is input to the second gear group.
- a vehicle drive device that can be driven by the gears of the second gear group selected by the second synchronizer, and the electric motor rotates via the gear group (for example, for a vehicle in an embodiment described later) Drive device 1, 1A, 1B) control device, While driving the power of the internal combustion engine through the gears of the second gear group, the gears of the second gear group in the first gear group are controlled so that the rotational speed of the electric motor does not exceed a predetermined rotational speed.
- a control device for a vehicle drive device characterized by pre-shifting to a high-speed side gear.
- An internal combustion engine for example, an engine 6 in an embodiment described later
- an electric motor for example, a motor 7 in an embodiment described later
- first to third rotating elements for example, a sun gear 32, a ring gear 35 in an embodiment described later
- a differential speed reducer for example, a differential speed reducer 30 and a planetary gear mechanism 31 in an embodiment described later
- the carrier 36 is configured to be capable of differential rotation with each other, and the first rotation of the differential speed reducer.
- a first connecting / disconnecting means for example, a first clutch 41 of the embodiment described later
- a second input / output shaft for example, an embodiment to be described later
- Second intermediate shaft 16) Second intermediate shaft 16), the first input / output shaft and the front
- a second input / output shaft and an input / output shaft for example, a counter shaft 14 in an embodiment described later
- the electric motor is connected to the first rotating element or the third rotating element.
- the first input / output shaft has a plurality of gears (for example, a third speed drive in an embodiment to be described later) that can be selected by a first synchronizer (for example, a first shift shifter 51 in an embodiment to be described later).
- a first gear group including a gear 23a, a fifth speed drive gear 25a, and a seventh speed drive gear 97a is provided, and a second synchronizer (for example, an embodiment described later) is provided on the second input / output shaft.
- a second gear composed of a plurality of gears (for example, a second speed drive gear 22a, a fourth speed drive gear 24a, and a sixth speed drive gear 96a according to an embodiment described later) that can be selected by the second speed change shifter 52).
- a gear group is provided, and the first connecting / disconnecting means is fastened.
- the second synchronizer is selected by switching the first connecting / disconnecting means and the second connecting / disconnecting means.
- a control device for a vehicle drive device that can be driven by the gears of the second gear group (for example, a vehicle drive device 1, 1A, 1B of an embodiment described later), In the first gear group, the rotational speed of the electric motor does not exceed a predetermined rotational speed during driving by transmitting the power of the internal combustion engine to the input / output shaft through the gear of the second gear group.
- a control device for a vehicle drive device wherein the control device pre-shifts to a gear at a higher speed than the gears of the second gear group.
- the vehicle drive device is characterized in that the electric motor is connected to the first rotating element, and the third rotating element is provided with a lock mechanism (for example, a synchronizing mechanism 61 in an embodiment described later).
- Item 3 A control device for a vehicle drive device according to Item 2.
- the vehicle drive device is characterized in that the electric motor is connected to the third rotating element, and combined power of the internal combustion engine and the electric motor is output to the second rotating element.
- the invention described in claim 5 includes: A plurality of gears (for example, a first shared driven gear 23b, a second shared driven gear of an embodiment described later, and the like) are meshed with the gear of the first gear group and the gear of the second gear group. 24b, a third gear group comprising a third shared driven gear 96b) is provided.
- a plurality of gears for example, a first shared driven gear 23b, a second shared driven gear of an embodiment described later, and the like
- 24b a third gear group comprising a third shared driven gear 96b
- Vehicle speed detection means for detecting the vehicle speed for example, vehicle speed detection means 58 in an embodiment described later
- Synchronization position detection means for detecting the connection position of the first synchronization device (for example, synchronization position detection means 57 of the embodiment described later)
- the first synchronization device is controlled such that the electric motor rotates within a predetermined vehicle speed range according to a connection position of the first synchronization device.
- the invention described in claim 7 includes: Detection means for detecting the rotation speed of the first input / output shaft (for example, shaft rotation speed detection means 59 in an embodiment described later), The first synchronizer is controlled so that the first input / output shaft rotates within a predetermined rotational speed range.
- the invention described in claim 8 includes: Detecting means for detecting the rotational speed of the input / output shaft (for example, shaft rotational speed detecting means 59 in an embodiment described later); Synchronization position detection means for detecting the connection position of the first synchronization device (for example, synchronization position detection means 57 of the embodiment described later), The first synchronization device is controlled so that the electric motor rotates within a predetermined range of the rotation speed of the input / output shaft according to a connection position of the first synchronization device.
- the invention described in claim 9 includes A detection means for detecting the rotation speed of the electric motor (for example, a motor rotation speed detection means 8 in an embodiment described later);
- the first synchronizer is controlled such that the electric motor rotates within a predetermined rotational speed range.
- the invention described in claim 10 includes: Electric motor temperature detecting means (for example, motor temperature detecting means 9 in an embodiment described later) that detects the temperature of the electric motor or detects a current value and estimates the temperature of the electric motor from the electric current value;
- Electric motor temperature detecting means for example, motor temperature detecting means 9 in an embodiment described later
- the pre-shift timing is corrected according to the above.
- the invention described in claim 11 includes While the power of the internal combustion engine is being driven through the gears of the second gear group, the rotational speed of the electric motor is selected even though the first synchronizer selects the highest speed gear of the first gear group. When the motor exceeds a predetermined number of revolutions or the motor exceeds a predetermined temperature, the first synchronizer is set to a neutral state.
- the first gear is set so that the rotational speed of the electric motor does not exceed the predetermined rotational speed while driving the power of the internal combustion engine through the gear of the second gear group. Since the gears in the group are pre-shifted to gears on the higher speed side than the gears of the second gear group, it is possible to prevent over-rotation of the electric motor that rotates through the first transmission unit in accordance with the shift change. It is possible to suppress the load.
- the rotational speed of the electric motor exceeds a predetermined rotational speed during driving by transmitting the power of the internal combustion engine to the input / output shaft via the gear of the second gear group.
- the first gear group is pre-shifted to a gear on the higher speed side than the gears of the second gear group, so that over-rotation of the motor rotating with the shift change can be prevented. Can be suppressed.
- the control device for a vehicle drive device of claims 3 and 4 since the electric motor is connected to the first rotation element or the third rotation element of the differential reduction gear, the power of the internal combustion engine and the power of the motor are added.
- the vehicle can be driven with the combined power.
- the output / input shaft is provided with the third gear group including a plurality of gears in which the gears of the first gear group and the gears of the second gear group are meshed together. Therefore, the number of gears can be halved as compared with the case where gears meshing with each gear of the first gear group and the second gear group are provided, and the drive device can be reduced in size.
- control device for a vehicle drive device of claim 6 by controlling the first synchronization device so that the electric motor rotates within the range of the vehicle speed determined in advance according to the connection position of the first synchronization device, It is possible to prevent over-rotation of the electric motor.
- the overspeed of the electric motor is prevented by controlling the first synchronizer so that the first input / output shaft rotates within a predetermined rotational speed range. can do.
- the first synchronization device is arranged so that the electric motor rotates within a range of the rotational speed of the input / output shaft that is predetermined according to the connection position of the first synchronization device. By controlling the motor, it is possible to prevent over-rotation of the electric motor.
- control device for a vehicle drive device of the ninth aspect it is possible to prevent over-rotation of the electric motor by controlling the first synchronization device so that the electric motor rotates within a range of a predetermined rotational speed.
- FIG. 1 It is the schematic which shows an example of the drive device for vehicles which can apply the control apparatus of this invention.
- FIG. It is a schematic block diagram of the control system of the vehicle drive device of FIG. It is a figure at the time of a stop of a vehicle, (a) is a speed diagram, (b) is a figure which shows the transmission condition of the torque of the vehicle drive device. It is a figure at the time of engine starting, (a) is a speed diagram, (b) is a figure which shows the transmission condition of the torque of a power output device. It is a figure at the time of assist of 1st mode, (a) is a speed diagram, (b) is a figure which shows the transmission condition of the torque of the vehicle drive device.
- (A) is a figure which shows the transmission condition of the torque of the vehicle drive device in 1st mode
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive apparatus in 2ndPost1 mode. It is a figure at the time of assist of 2nd Post1 mode
- (a) is a speed diagram
- (b) is a figure showing the transmission situation of torque of a vehicle drive device. It is a figure at the time of assist of 2nd mode (clutch both grip)
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive device.
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the drive device for vehicles.
- (A) is a figure which shows the transmission condition of the torque of the vehicle drive device in 2nd mode
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive apparatus in 3rdPost2 mode.
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive device.
- FIG. 4 is a diagram at the time of assisting in the 4th 3 Post 3 mode, (a) is a speed diagram, and (b) is a diagram showing a transmission state of torque of the vehicle drive device.
- FIGS. 4A and 4B are diagrams at the time of assist in the 4th mode (clutch both grips), FIG. 4A is a velocity diagram, and FIG.
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive device.
- (A) is a figure which shows the transmission condition of the torque of the vehicle drive device in 4th mode
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive device in 5thPost4 mode.
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the vehicle drive device.
- (a) is a speed diagram
- (b) is a figure which shows the transmission condition of the torque of the drive device for vehicles.
- FIG. 1 is a schematic configuration diagram of a drive system of a hybrid vehicle.
- the vehicle drive device 1 is for driving drive wheels DW and DW (driven parts) via drive shafts 9 and 9 of a vehicle (not shown).
- engine internal combustion engine
- motor hereinafter referred to as “motor”
- the differential reduction gear 30 which performs.
- the engine 6 is a gasoline engine, for example, and a first clutch 41 (first connecting / disconnecting means) and a second clutch (second connecting / disconnecting means) of the transmission 20 are connected to the crankshaft 6a of the engine 6. Yes.
- the motor 7 is a three-phase brushless DC motor, and includes a stator 71 composed of 3n armatures 71a, and a rotor 72 arranged to face the stator 71.
- Each armature 71a includes an iron core 71b and a coil 71c wound around the iron core 71b.
- the armature 71a is fixed to a casing (not shown) and is arranged at substantially equal intervals in the circumferential direction around the rotation axis. Yes.
- the 3n coils 71c constitute n sets of U-phase, V-phase, and W-phase three-phase coils.
- the rotor 72 has n permanent magnets 72a arranged at substantially equal intervals around the rotation axis, and the polarities of two adjacent permanent magnets 72a are different from each other.
- the fixing portion 72b for fixing each permanent magnet 72a has a hollow cylindrical shape made of a soft magnetic material (for example, iron), and the outer periphery of the ring gear 35 of the planetary gear mechanism 31 constituting the differential reduction gear 30 described later. It is arranged on the side and connected to the sun gear 32 of the planetary gear mechanism 31.
- the rotor 72 is configured to rotate integrally with the sun gear 32 of the planetary gear mechanism 31 constituting the differential reduction gear 30.
- the differential reduction gear 30 includes a single pinion planetary gear mechanism 31, a sun gear 32, a ring gear 35 arranged coaxially with the sun gear 32, and arranged so as to surround the sun gear 32.
- a planetary gear 34 meshed with the sun gear 32 and the ring gear 35, and a carrier 36 that supports the planetary gear 34 so as to be capable of rotating and revolving.
- the sun gear 32, the ring gear 35, and the carrier 36 are configured to be differentially rotatable with respect to each other.
- the ring gear 35 is connected to a synchro mechanism 61 (lock mechanism) configured to stop (lock) rotation of the ring gear 35.
- the transmission 20 is a so-called twin-clutch transmission that includes the first clutch 41 and the second clutch 42 described above, a planetary gear mechanism 31 that constitutes the differential reduction gear 30, and a plurality of transmission gear groups that will be described later. It is.
- the transmission 20 includes a first main shaft 11 (first input / output shaft) disposed on the same axis (rotation axis A1) as the crank shaft 6a of the engine 6, a second main shaft 12, and a connecting shaft. 13, a counter shaft 14 (input / output shaft) rotatable around a rotation axis B1 arranged parallel to the rotation axis A1, and a first rotation rotatable around a rotation axis C1 arranged parallel to the rotation axis A1.
- a reverse shaft 17 is provided that is rotatable about E1.
- the first clutch 41 is connected to the first main shaft 11 on the engine 6 side, and the sun gear 32 of the planetary gear mechanism 31 and the rotor 72 of the motor 7 are attached to the opposite side of the engine 6 side. Accordingly, the first main shaft 11 is selectively coupled to the crankshaft 6 a of the engine 6 by the first clutch 41 and directly coupled to the motor 7 so that the power of the engine 6 and / or the motor 7 is transmitted to the sun gear 32. It is configured.
- the second main shaft 12 is configured to be shorter and hollow than the first main shaft 11, and is disposed so as to be relatively rotatable so as to cover the periphery of the first main shaft 11 on the engine 6 side.
- a second clutch 42 is connected to the second main shaft 12 on the engine 6 side, and an idle drive gear 27a is integrally attached to the opposite side of the engine 6 side. Therefore, the second main shaft 12 is selectively coupled to the crankshaft 6a of the engine 6 by the second clutch 42, and the power of the engine 6 is transmitted to the idle drive gear 27a.
- the connecting shaft 13 is configured to be shorter and hollow than the first main shaft 11, and is disposed so as to be relatively rotatable so as to cover the periphery of the first main shaft 11 on the side opposite to the engine 6 side. Further, a third speed drive gear 23a is integrally attached to the connecting shaft 13 on the engine 6 side, and a carrier 36 of the planetary gear mechanism 31 is integrally attached to the opposite side of the engine 6 side. Therefore, the carrier 36 attached to the connecting shaft 13 and the third-speed drive gear 23a are configured to rotate integrally by the revolution of the planetary gear 34.
- first main shaft 11 is rotatable relative to the first main shaft 11 between a third speed drive gear 23 a attached to the connecting shaft 13 and an idle drive gear 27 a attached to the second main shaft 12.
- a fifth speed drive gear 25a is provided, and a reverse driven gear 28b that rotates integrally with the first main shaft 11 is attached.
- a shifter 51 is provided. When the first speed-shifting shifter 51 is in-gear at the third speed connection position, the first main shaft 11 and the third speed drive gear 23a are connected to rotate integrally and in-gear at the fifth speed connection position.
- the first main shaft 11 and the fifth speed drive gear 25a rotate integrally, and when the first speed change shifter 51 is in the neutral position, the first main shaft 11 has the third speed drive gear 23a and the fifth speed drive gear 25a. It rotates relative to the drive gear 25a.
- the sun gear 32 attached to the first main shaft 11 and the carrier 36 connected to the third speed drive gear 23a by the connecting shaft 13 are provided.
- the ring gear 35 While rotating integrally, the ring gear 35 also rotates integrally, and the planetary gear mechanism 31 is united.
- a first idle driven gear 27b that meshes with an idle drive gear 27a attached to the second main shaft 12 is integrally attached to the first intermediate shaft 15.
- the second intermediate shaft 16 is integrally attached with a second idle driven gear 27c that meshes with the first idle driven gear 27b attached to the first intermediate shaft 15.
- the second idle driven gear 27c constitutes the first idle gear train 27A together with the idle drive gear 27a and the first idle driven gear 27b described above.
- the second intermediate shaft 16 is rotatable relative to the second intermediate shaft 16 at positions corresponding to the third speed drive gear 23a and the fifth speed drive gear 25a provided around the first main shaft 11, respectively.
- a second speed drive gear 22a and a fourth speed drive gear 24a are provided.
- the second intermediate shaft 16 includes a second intermediate shaft 16 and a second speed drive gear 22a or a fourth speed drive gear 24a between the second speed drive gear 22a and the fourth speed drive gear 24a.
- a second shifter 52 for shifting or connecting the two.
- the second shifter 52 shifts in-gear at the second speed connection position
- the second intermediate shaft 16 and the second speed drive gear 22a rotate together
- the second shifter 52 shifts to the fourth speed.
- the second intermediate shaft 16 and the fourth-speed drive gear 24a rotate together.
- the second shifter shifter 52 is in the neutral position
- the second intermediate shaft 16 moves to the second speed.
- the drive gear 22a and the fourth speed drive gear 24a rotate relative to each other.
- a first shared driven gear 23b, a second shared driven gear 24b, a parking gear 21, and a final gear 26a are attached to the counter shaft 14 in order from the side opposite to the engine 6 side so as to be integrally rotatable.
- the first shared driven gear 23b meshes with the third speed drive gear 23a attached to the connecting shaft 13 to form the third speed gear pair 23 together with the third speed drive gear 23a
- the second speed gear pair 22 is configured together with the second speed drive gear 22a by meshing with the second speed drive gear 22a provided on the intermediate shaft 16.
- the second shared driven gear 24b meshes with the fifth speed drive gear 25a provided on the first main shaft 11 to form the fifth speed gear pair 25 together with the fifth speed drive gear 25a, and the second intermediate shaft.
- a third idle driven gear 27d that meshes with the first idle driven gear 27b attached to the first intermediate shaft 15 is integrally attached to the reverse shaft 17.
- the third idle driven gear 27d constitutes a second idle gear train 27B together with the above-described idle drive gear 27a and first idle driven gear 27b.
- the reverse shaft 17 is provided with a reverse drive gear 28 a that meshes with a reverse driven gear 28 b attached to the first main shaft 11 so as to be rotatable relative to the reverse shaft 17.
- the reverse drive gear 28a constitutes the reverse gear train 28 together with the reverse driven gear 28b.
- a reverse shifter 53 for connecting or releasing the reverse shaft 17 and the reverse drive gear 28a is provided on the opposite side of the reverse drive gear 28a from the engine 6 side.
- the vehicle drive device 1 of the present embodiment has the following first to fifth transmission paths.
- the crankshaft 6a of the engine 6 includes the first main shaft 11, the planetary gear mechanism 31, the connecting shaft 13, the third speed gear pair 23 (the third speed drive gear 23a, the first common use).
- This is a transmission path connected to the drive wheels DW and DW via the driven gear 23b), the counter shaft 14, the final gear 26a, the differential gear mechanism 8, and the drive shafts 9 and 9.
- the reduction gear ratio of the planetary gear mechanism 31 that is a differential reduction gear is set such that the engine torque transmitted through the first transmission path is equivalent to the first speed.
- the crankshaft 6a of the engine 6 has the second main shaft 12, the first idle gear train 27A (the idle drive gear 27a, the first idle driven gear 27b, the second idle driven gear 27c), the second 2 intermediate shaft 16, second speed gear pair 22 (second speed drive gear 22a, first shared driven gear 23b) or fourth speed gear pair 24 (fourth speed drive gear 24a, second shared driven gear) 24b), a transmission path connected to the drive wheels DW and DW via the counter shaft 14, the final gear 26a, the differential gear mechanism 8, and the drive shafts 9 and 9.
- crankshaft 6a of the engine 6 is used for the first main shaft 11, the third speed gear pair 23 (the third speed drive gear 23a, the first shared driven gear 23b) or the fifth speed.
- gear pair 25 fifth speed drive gear 25a, second shared driven gear 24b
- final gear 26a final gear 26a
- differential gear mechanism 8 final gear mechanism 8
- drive shafts 9 and 9. Is a transmission path.
- the motor 7 is connected to the planetary gear mechanism 31 or the third speed gear pair 23 (the third speed drive gear 23a, the first shared driven gear 23b) or the fifth speed gear pair 25 ( 5th speed drive gear 25a, second shared driven gear 24b), counter shaft 14, final gear 26a, differential gear mechanism 8, and drive shafts 9 and 9 are connected to drive wheels DW and DW. It is.
- the crankshaft 6a of the engine 6 has the second main shaft 12, the second idle gear train 27B (idle drive gear 27a, first idle driven gear 27b, third idle driven gear 27d), reverse Shaft 17, reverse gear train 28 (reverse drive gear 28a, reverse driven gear 28b), planetary gear mechanism 31, connecting shaft 13, third speed gear pair 23 (third speed drive gear 23a, first common use)
- This is a transmission path connected to the drive wheels DW and DW via the driven gear 23b), the counter shaft 14, the final gear 26a, the differential gear mechanism 8, and the drive shafts 9 and 9.
- the motor 7 detects the number of rotations of the power control unit (hereinafter referred to as PDU) 2 that controls the operation and the motor 7 as shown in FIG.
- the motor rotation number detection means 8 and the motor temperature detection means 9 for detecting the temperature of the motor 7 are connected.
- the PDU 2 is connected to a battery 3 that supplies power to the motor 7 or charges power from the motor 7.
- the battery 3 is connected to SOC detection means 4 for detecting the remaining capacity (hereinafter referred to as storage capacity or SOC).
- SOC detection means 4 for detecting the remaining capacity (hereinafter referred to as storage capacity or SOC).
- the motor 7 is driven by electric power supplied from the battery 3 via the PDU 2.
- the motor 7 can perform regenerative power generation by rotation of the drive wheels DW and DW during deceleration traveling and power of the engine 6 to charge the battery 3 (energy recovery).
- the PDU 2 is connected to an electric control unit (hereinafter referred to as ECU) 5.
- the ECU 5 is a control device for performing various controls of the entire vehicle, and includes a synchronous position detecting means 57 for detecting the connection position of the first shifter 51, a vehicle speed detecting means 58 for detecting the vehicle speed, and the first main spindle 11. And / or it is connected to the shaft rotational speed detecting means 59 for detecting the rotational speed of the counter shaft 14.
- the motor speed detecting means 8, the vehicle speed detecting means 58, and the shaft speed detecting means 59 are not necessarily provided, and it is sufficient that at least one is provided.
- Acceleration request, braking request, engine rotation speed, motor rotation speed, motor temperature, rotation speed of the first and second main shafts 11 and 12, rotation speed of the counter shaft 14, etc., vehicle speed, shift position, SOC, etc. are input to the ECU 5.
- a signal for controlling the engine 6 a signal for controlling the motor 7, a signal indicating the power generation state / charge state / discharge state of the battery 3, the first and second shift shifters 51, 52, reverse drive
- a signal for controlling the shifter 53, a signal for controlling the lock of the synchro mechanism 61, and the like are output.
- the third-speed drive gear 23a and the fifth-speed drive gear 25a form an odd-numbered gear group (first gear group), and the second-speed drive gear.
- An even-numbered gear group (second gear group) is configured by the 22a and the fourth speed drive gear 24a
- an output gear (third gear group) is configured by the first shared driven gear 23b and the second shared driven gear 24b. Yes.
- the first speed traveling is performed by being transmitted to the drive wheels DW and DW through the first transmission path passing through the third speed gear pair 23 described above.
- the state shown in FIG. 6A is hereinafter referred to as 1st mode.
- FIG. 5 shows a case where the motor 7 assists during traveling in the 1st mode.
- the stop position of the motor 7 is 0, the upper direction is the forward direction, the lower direction is the reverse direction, the sun gear 32 is “S”, the carrier 36 is “C”, and the ring gear 35 is “R”. ] Respectively.
- FIG. 5 (b) is a diagram showing the state of torque transmission.
- the thick arrow with hatching represents the flow of torque, and the hatching in the arrow corresponds to the hatching of the arrow indicating the torque in each velocity diagram. ing.
- the forward rotation direction of the motor 7 refers to the direction in which the forward torque is transmitted to the drive wheels DW and DW via the drive shafts 9 and 9, and the reverse rotation direction refers to the drive wheel DW via the drive shafts 9 and 9.
- DW is a direction in which reverse torque is transmitted to DW. While driving in the 1st mode, the motor 7 is driven to apply the motor torque in the forward rotation direction, so that the motor torque is decelerated and transmitted from the sun gear 32 to the carrier 36, and the third speed gear pair 23 described above is transmitted. It is transmitted to the drive wheels DW and DW via the fourth transmission path that passes. In other words, the engine torque and the motor torque are transmitted to the sun gear 32, and the combined torque is transmitted to the drive wheels DW and DW. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the second shifter shifter 52 is in-geared from the neutral position to the second speed connection position.
- the state in which the second shifter 52 is pre-shifted to the second speed connection position during the first speed traveling is referred to as a 1stPre2 mode.
- the motor 7 can be assisted or charged by driving the motor 7 to apply motor torque in the forward direction or applying regenerative torque in the reverse direction.
- the first and second clutches 41 and 42 are switched, that is, the first clutch 41 is disengaged and the second clutch 42 is engaged, so that the engine torque becomes the second speed as shown in FIG.
- the state of FIG. 6B in which the synchro mechanism 61 is locked during the second speed traveling is hereinafter referred to as a 2ndPost1 mode.
- the motor 7 is accelerated through the third speed gear pair 23 and the planetary gear mechanism 31 as viewed from the counter shaft 14, and the counter The shaft 14 is rotated at a higher rotational speed than the rotational speed of the shaft 14.
- FIG. 7 shows a case where the motor 7 assists during traveling in the 2nd Post1 mode. From this state, by driving the motor 7 and applying the motor torque in the forward direction, the motor torque is input to the sun gear 32, the motor torque is decelerated and transmitted from the sun gear 32 to the carrier 36, and the third speed It is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the gear pair 23 for use. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the synchronization mechanism 61 is unlocked to enter the 2nd mode.
- the first clutch 41 is disengaged and the synchronization mechanism 61 is unlocked, so the sun gear 32 and the ring gear 35 are idled and the motor 7 is disconnected.
- the 2nd mode releases the lock of the synchro mechanism 61 and replaces the first clutch in place of switching the first and second clutches 41 and 42 from the 1st Pre2 mode.
- the second clutch 42 is further fastened while the 41 is fastened.
- FIG. 8 shows a case where the motor 7 assists during traveling in the 2nd mode in which both the first and second clutches 41 and 42 are connected (clutch both grips). From this state, by driving the motor 7 and applying a motor torque in the forward direction, the combined torque of the motor torque and the engine torque passes through the second transmission path passing through the second speed gear pair 22 to drive wheels DW. , DW. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the sun gear 32 is rotated at the second speed reduction ratio and the carrier 36 is rotated at the third speed reduction ratio. At 31, the constant differential rotation shown in FIG.
- the first shifter 51 is in-geared from the neutral position to the third speed connection position.
- a state in which the first shifter 51 is preshifted to the third speed connection position during the second speed traveling is referred to as a 2ndPre3 mode.
- FIG. 9 shows a case where the motor 7 assists during traveling in the 2ndnPre3 mode.
- the planetary gear mechanism 31 rotates together by in-gearing the first shifter 51 to the third speed connection position. Therefore, by driving the motor 7 and applying the motor torque in the forward rotation direction, the motor torque is not decelerated as it is, and is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the third speed gear pair 23. Communicated.
- the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the first and second clutches 41 and 42 are switched, that is, the second clutch 42 is disengaged and the first clutch 41 is engaged, so that the engine torque becomes the third speed as shown in FIG. It is transmitted to the drive wheels DW and DW via the third transmission path passing through the gear pair 23, so that the third speed traveling is performed.
- the state shown in FIG. 10B in which the second shifter 52 is in-gear at the second speed connection position during the third speed traveling is hereinafter referred to as a 3rdPost2 mode. Even in this state, the motor 7 can be assisted or charged by driving the motor 7 to apply motor torque in the forward direction or applying regenerative torque in the reverse direction.
- the 3rd mode is set by in-gearing the second shifter shifter 52 from the second speed connection position to the neutral position.
- FIG. 11 shows a case where the motor 7 assists during traveling in the 3rd mode. From this state, by driving the motor 7 and applying the motor torque in the forward direction, the motor torque is not reduced as it is, but via the fourth transmission path passing through the third speed gear pair 23, the drive wheels DW, Is transmitted to the DW. In other words, the engine torque and the motor torque are transmitted to the third speed gear pair 23, and the combined torque is transmitted to the drive wheels DW and DW. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the control for shifting up from the third speed travel to the fourth speed travel will be described.
- the second shifter shifter 52 is in-geared from the neutral position to the fourth speed connection position.
- the state in which the second shifter 52 is preshifted to the fourth speed connection position during the third speed traveling is referred to as a 3rdPre4 mode.
- the motor 7 can be assisted or charged by driving the motor 7 to apply motor torque in the forward direction or applying regenerative torque in the reverse direction.
- the first and second clutches 41, 42 that is, by disconnecting the first clutch 41 and fastening the second clutch 42, as shown in FIG.
- the state shown in FIG. 12B in which the first shifter 51 is in-gear at the third speed connection position during the fourth speed traveling is hereinafter referred to as a 4th Post3 mode.
- the motor 7 increases as viewed from the counter shaft 14 via the third speed gear pair 23 and the planetary gear mechanism 31 by the meshing of the third speed drive gear 23a and the first common driven gear 23b.
- the rotation speed is increased at a higher rotational speed than the rotational speed of the counter shaft 14.
- FIG. 13 shows a case where the motor 7 assists during the 4th Post3 mode. From this state, by driving the motor 7 and applying the motor torque in the forward direction, the motor torque is directly transmitted to the drive wheels DW and DW via the fourth transmission path passing through the third speed gear pair 23. The On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7.
- the 4th mode is set by in-gearing the first shifter 51 from the third speed connection position to the neutral position.
- the first clutch 41 since the first clutch 41 is disengaged and the synchro mechanism 61 is unlocked, the sun gear 32 and the ring gear 35 are idled and the motor 7 is disconnected.
- the first and second clutches 41 and 42 are switched from the 3rdrPre4 mode, while the first clutch 41 is kept engaged, There is a mode in which the clutch 42 is engaged.
- FIG. 14 shows a case where the motor 7 assists in the 4th mode in which both the first and second clutches 41 and 42 are connected (clutch both grips). From this state, by driving the motor 7 and applying the motor torque in the forward direction, the combined torque of the motor torque and the engine torque passes through the second transmission path passing through the fourth speed gear pair 24 to drive wheels DW. , DW. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7. When both the first and second clutches 41 and 42 are connected, the sun gear 32 is rotated at the fourth speed reduction ratio and the carrier 36 is rotated at the third speed reduction ratio. At 31, the constant differential rotation shown in FIG.
- the first shifter 51 is in-geared from the neutral position to the fifth speed connection position.
- a state in which the first shifter 51 is preshifted to the fifth speed connection position during the fourth speed traveling is referred to as a 4th Pre5 mode.
- FIG. 15 shows a case where the motor 7 assists during 4th Pre5 mode. From this state, by driving the motor 7 and applying the motor torque in the forward direction, the motor torque is input to the sun gear 32, and the motor torque is accelerated and transmitted from the sun gear 32 to the carrier 36. It is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the fifth speed gear pair 25 described above. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7. In this state, since the sun gear 32 is rotated at the fifth speed reduction ratio and the carrier 36 is rotated at the third speed reduction ratio, the planetary gear mechanism 31 has a constant differential rotation shown in FIG. Occurs.
- the second shifter 52 is in-geared from the fourth speed connection position to the neutral position to enter the 5th mode.
- FIG. 17 shows a case where the motor 7 assists during the 5th mode. From this state, by driving the motor 7 and applying the motor torque in the forward direction, the motor torque is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the fifth speed gear pair 25. . In other words, the engine torque and the motor torque are transmitted to the fifth speed gear pair 25, and the combined torque is transmitted to the drive wheels DW and DW. On the other hand, the motor 7 can be charged by applying a regenerative torque in the reverse direction to the motor 7 without driving the motor 7. In this state, since the sun gear 32 is rotated at the fifth speed reduction ratio and the carrier 36 is rotated at the third speed reduction ratio, the planetary gear mechanism 31 has a constant differential rotation shown in FIG. Occurs.
- reverse travel in the vehicle drive device 1 There are cases where the engine 6 is used for reverse travel of the vehicle and there are cases where the reverse travel is performed by EV travel.
- the case where the engine 6 is used will be described, and in the case where the reverse travel is performed by EV travel, together with the description of EV travel. Will be described later.
- the reverse travel when only the torque of the engine 6 is used is realized by engaging the reverse shifter 53 in the reverse connection position from the initial state and engaging the second clutch 42 with the synchro mechanism 61 locked. Thereby, the torque of the engine 6 is transmitted to the drive wheels DW and DW via the above-described fifth transmission path. Even in this state, the motor 7 can be assisted or charged by driving the motor 7 and applying motor torque in the reverse rotation direction, or applying regenerative torque in the normal rotation direction.
- the vehicle drive device 1 has three EV travel modes.
- the first EV travel is a 1st EV mode that is performed by setting the synchro mechanism 61 to the locked state (OWC lock ON) from the initial state.
- the sun gear 32 of the planetary gear mechanism 31 connected to the rotor 72 is rotated in the forward direction as shown in FIG.
- the first and second clutches 41 and 42 are disengaged, the power transmitted to the sun gear 32 is transmitted from the first main shaft 11 to the crankshaft 6a of the engine 6. It will never be done.
- the motor torque is decelerated from the sun gear 32 to the carrier 36 and transmitted to the drive wheels DW and DW via the fourth transmission path passing through the third speed gear pair 23. Communicated.
- the reverse travel in the 1st EV mode is performed by driving the motor 7 in the reverse direction and applying a motor torque in the reverse direction.
- the second EV traveling is a 3rd EV mode which is performed by in-gearing the first shifter 51 from the neutral position to the third speed connection position from the initial state.
- the planetary gear mechanism 31 is integrated by in-gearing the first shifter 51 to the third speed connection position.
- the motor 7 is driven in this state (torque is applied in the forward direction)
- the planetary gear mechanism 31 connected to the rotor 72 is integrally rotated in the forward direction as shown in FIG.
- the power transmitted to the sun gear 32 is not transmitted from the first main shaft 11 to the crankshaft 6 a of the engine 6.
- the motor torque is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the third speed gear pair 23.
- the reverse travel in the 3rd EV mode is performed by driving the motor 7 in the reverse direction and applying a motor torque in the reverse direction.
- the third EV travel is a 5th EV mode that is performed by in-gearing the first shifter 51 from the neutral position to the fifth speed connection position from the initial state.
- the sun gear 32 of the planetary gear mechanism 31 connected to the rotor 72 rotates in the forward direction as shown in FIG.
- the first and second clutches 41 and 42 are disengaged, the power transmitted to the sun gear 32 is transmitted from the first main shaft 11 to the crankshaft 6a of the engine 6. It will never be done.
- the motor torque is transmitted to the drive wheels DW and DW via the fourth transmission path passing through the fifth speed gear pair 25.
- the reverse travel in the 5th EV mode is performed by driving the motor 7 in the reverse direction and applying a motor torque in the reverse direction.
- the travel in the 3rd EV mode can be shifted to the first speed travel (1st mode assist) shown in FIG. 5 (S7).
- the second clutch 42 is fastened and the second shifter 52 is moved in-gear at the second speed connection position or the fourth speed connection position. By doing so, the engine 6 can be started.
- the motor is connected via the third speed gear pair 23 and the planetary gear mechanism 31. 7 is increased when viewed from the counter shaft 14 and is rotated at a rotational speed higher than the rotational speed of the counter shaft 14.
- the ECU 5 uses the first shifter 51 for the second shift so that the rotation number of the motor 7 detected by the motor rotation number detecting means 8 does not exceed a predetermined rotation number.
- a control command (hereinafter referred to as pre-shift control) for pre-shifting to the gear of the odd-numbered gear group on the high speed side from the gear of the even-numbered gear group in which the shifter 52 is in gear is output.
- the sync mechanism 61 is unlocked and the first speed change is performed.
- the in-gear shifter 51 is in-geared at the third speed connection position to shift to the assist travel in the 2nd Pre3 mode shown in FIG. Thereby, since the motor 7 rotates at the rotation speed of the 2ndPre3 mode lower than the rotation speed of the 2ndPost1 mode, it is possible to prevent the motor 7 from over-rotating due to the shift change and to reduce the load on the motor 7.
- the first shifter 51 is in-geared at the third speed connection position.
- the vehicle shifts to assist driving in the 4th Pre5 mode shown in FIG.
- the motor 7 rotates at the rotation speed of the 4th Post3 mode lower than the rotation speed in the 4th Post3 mode, it is possible to prevent the motor 7 from over-rotating due to the shift change and to reduce the load on the motor 7.
- FIG. 25 is a graph showing the vehicle speed, the engine speed, the engine torque, the motor speed, and the displacement of the motor torque when shifting from the 4th Post3 mode to the 4th Pre5 mode in a vehicle using the vehicle drive device 1.
- V represents the vehicle speed
- Ne represents the engine speed
- Te represents the engine torque
- Nm represents the motor speed
- Tm represents the motor torque.
- (1) shows a state where the assist travel is performed in the 4th Post3 mode shown in FIG. 13 (b).
- the torque of the motor 7 is removed in (2).
- the engine speed increases.
- the first shifter 51 is returned to the neutral position so that the motor speed does not exceed the threshold value 1.
- the vehicle drive device 1 is in the state of the 4th mode in FIG. (4) is a state in which the number of rotations of the motor 7 is adjusted from the state of (3).
- the first speed shifter 51 is in-geared at the fifth speed connection position to thereby achieve the 4thPre5 shown in FIG. The mode has shifted to assist driving. Thereby, although the vehicle speed is rising, it can suppress that the motor 7 will be in an overspeed state.
- the motor 7 rotates so that the rotational speed of the rotating motor 7 does not exceed a predetermined rotational speed while being driven by the gears of the gear group that does not transmit the power of the motor 7. 7 is pre-shifted so as to select a gear on the higher speed side than the currently driven gear among the gear group capable of transmitting the motive power of 7, so that over-rotation of the motor 7 due to a shift change is prevented and the load on the motor 7 is reduced. be able to.
- the preshift control is performed based on the number of rotations of the motor 7, but the present invention is not limited to this, and the synchronization position of the first shifter 51 is detected by the synchronization position detecting means 57, and the first shift is detected. Pre-shifting may be performed so that the motor 7 rotates within a predetermined vehicle speed and the number of rotations of the first main shaft 11 or the counter shaft 14 according to the synchronization position of the shift shifter 51.
- the preshift control it is preferable to correct the preshift timing according to the motor temperature. For example, in FIG. 25, even if the rotational speed of the motor 7 is lower than the threshold value 1, if the temperature of the motor 7 detected by the motor temperature detecting means 9 is higher than a predetermined temperature, the first speed change is performed. It is possible to prevent the motor 7 in the high temperature state from rotating at a high speed by in-gearing the shifter 51 at the fifth speed connection position from the state where the gear shifter 51 is in gear at the third speed connection position.
- the motor temperature detecting means 9 is not limited to the one that directly detects the motor temperature, and the temperature of the motor 7 may be estimated by detecting the current value.
- the ECU 5 is in the 4th ⁇ Post 3 mode, and the first shifter 51 is in-geared at the third-speed connection position from the in-gear state at the third-speed connection position.
- the rotational speed exceeds a predetermined rotational speed or when the motor 7 exceeds a predetermined temperature
- the vehicle drive device 1A includes a planetary gear mechanism 31 that constitutes the differential reduction gear 30 in the transmission 20A, a sixth speed gear pair 96, in addition to the second to fifth speed gear pairs 22-25.
- the seventh embodiment is different from the vehicle drive device 1 in that a seventh speed gear pair 97 is provided.
- a seventh speed gear pair 97 is provided.
- the first main shaft 11 is provided with a seventh speed drive gear 97a between the third speed drive gear 23a and the fifth speed drive gear 25a so as to be rotatable relative to the first main shaft 11.
- the first main shaft 11 and the third speed drive gear 23a or the seventh speed drive gear 97a are connected or released between the third speed drive gear 23a and the seventh speed drive gear 97a.
- a shifter for shifting 51A is provided, and for the third shift that connects or releases the first main shaft 11 and the fifth speed drive gear 25a between the seventh speed drive gear 97a and the fifth speed drive gear 25a.
- a shifter 51B is provided.
- the first main shaft 11 and the third speed drive gear 23a are connected to rotate integrally and in-gear at the seventh speed connection position.
- the first main shaft 11 and the seventh speed drive gear 97a rotate together, and when the first shift shifter 51A is in the neutral position, the first main shaft 11 is connected to the third speed drive gear 23a and the seventh speed drive gear. It rotates relative to the drive gear 97a.
- the third shifter 51B is in-gear at the fifth-speed connection position, the first main shaft 11 and the fifth-speed drive gear 25a are connected to rotate integrally, and the third shifter 51B is in the neutral position. The first main shaft 11 rotates relative to the fifth speed drive gear 25a.
- the second intermediate shaft 16 is provided with a sixth speed drive gear 96a between the second speed drive gear 22a and the fourth speed drive gear 24a so as to be rotatable relative to the second intermediate shaft 16. Further, the second intermediate shaft 16 and the second speed driving gear 22a or the sixth speed driving gear 96a are connected or released between the second speed driving gear 22a and the sixth speed driving gear 96a.
- a second shifter 52A is provided to connect or release the second intermediate shaft 16 and the fourth speed drive gear 24a between the sixth speed drive gear 96a and the fourth speed drive gear 24a.
- a shifter for shifting 52B is provided.
- the second speed-shifting shifter 52A When the second speed-shifting shifter 52A is in-gear at the second-speed connection position, the second intermediate shaft 16 and the second-speed drive gear 22a are connected to rotate integrally, and the sixth-speed connection position is in-gear at the sixth-speed connection position.
- the second intermediate shaft 16 and the sixth speed drive gear 96a rotate together, and the second speed change shifter 52A is in the neutral position, the second intermediate shaft 16 is connected to the second speed drive gear 22a and the second speed drive gear 22a. It rotates relative to the 6-speed drive gear 96a.
- the fourth shifter 52B When the fourth shifter 52B is in-gear at the fourth-speed connection position, the second intermediate shaft 16 and the fourth-speed drive gear 24a are connected to rotate integrally, and the fourth shifter 52B is neutral. When in position, the second intermediate shaft 16 rotates relative to the fourth speed drive gear 24a.
- a third shared driven gear 96b is integrally attached to the counter shaft 14 between the first shared driven gear 23b and the second shared driven gear 24b.
- the third shared driven gear 96b meshes with a seventh speed drive gear 97a provided on the first main shaft 11 to form a seventh speed gear pair 97 together with the seventh speed drive gear 97a.
- a sixth speed gear pair 26 is configured together with the sixth speed drive gear 96a by meshing with a sixth speed drive gear 96a provided on the second intermediate shaft 16.
- the second shift shifter 52A can be in the sixth gear by engaging the second clutch 42 in the in-gear state at the sixth speed connection position, and the first shift shifter 51A can By engaging the first clutch 41 in the in-gear state at the speed connection position, the seventh speed traveling can be performed, and the motor 7 can assist or charge each.
- the same effect as the control device of the vehicle drive device 1 is achieved by performing the pre-shift control described above.
- the third shifter 51B is returned from the fifth speed connection position to the neutral position and the first shifter 51A is moved to the seventh speed while traveling with the sixth speed drive gear 96a. By in-gearing at the connecting position, it is possible to prevent the motor 7 from over-rotating during the sixth speed traveling.
- the planetary gear mechanism 31 constitutes a torque synthesizing mechanism
- the motor 7 is connected to the ring gear 35
- the engine torque transmitted to the sun gear 32 and the motor input to the ring gear 35.
- a combined torque is transmitted from the carrier 36 to the counter shaft 14 via the third speed gear pair 23.
- the first shifter 51 while traveling with the fourth speed drive gear 24a, the first shifter 51 is in-geared at the fifth speed connection position from the state where the first shifter 51 is in gear at the third speed connection position.
- the motor 7 rotates at a low rotational speed as viewed from the counter shaft 14 driven by the fourth speed drive gear 24a, and the motor 7 is prevented from over-rotating due to a shift change and the load on the motor 7 is reduced. can do.
- lockable synchro mechanism 61 is exemplified as the lock mechanism, the present invention is not limited to the synchro mechanism, and a brake capable of stopping the rotation of the ring gear 35 and a one-way clutch with a lock mechanism may be used.
- the differential reduction gear is not limited to a single pinion type planetary gear mechanism, but may be a double pinion type planetary gear mechanism, and is not limited to a mechanical type like a planetary gear mechanism.
- a magnetically differential rotating motor such as a reciprocal differential motor may be used.
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Abstract
Description
内燃機関(例えば、後述の実施形態のエンジン6)と、電動機(例えば、後述の実施形態のモータ7)と、第1断接手段(例えば、後述の実施形態の第1クラッチ41)を介して前記内燃機関に接続され第1同期装置(例えば、後述の実施形態の第1変速用シフター51)により選択可能な複数のギヤ(例えば、後述の実施形態の第3速用駆動ギヤ23a、第5速用駆動ギヤ25a、第7速用駆動ギヤ97a)からなる第1ギヤ群と、第2断接手段(例えば、後述の実施形態の第2クラッチ42)を介して前記内燃機関に接続され第2同期装置(例えば、後述の実施形態の第2変速用シフター52)により選択可能な複数のギヤ(例えば、後述の実施形態の第2速用駆動ギヤ22a、第4速用駆動ギヤ24a、第6速用駆動ギヤ96a)からなる第2ギヤ群と、を備え、前記第1ギヤ群には前記内燃機関と前記電動機の少なくとも一方の動力が入力され、前記第2ギヤ群には前記内燃機関の動力が入力され、前記第1断接手段を締結して前記第1同期装置により選択された前記第1ギヤ群のギヤを介して駆動中に、前記第1断接手段と前記第2断接手段とをつなぎかえることにより前記第2同期装置により選択された前記第2ギヤ群のギヤで駆動可能であって、且つ、前記電動機は前記ギヤ群を介して回転する車両用駆動装置(例えば、後述の実施形態の車両用駆動装置1、1A、1B)の制御装置であって、
前記内燃機関の動力を前記第2ギヤ群のギヤを介して駆動中に、前記電動機の回転数が所定回転数を超えないように、前記第1ギヤ群のうち前記第2ギヤ群のギヤより高速側のギヤにプレシフトすることを特徴とする車両用駆動装置の制御装置。
内燃機関(例えば、後述の実施形態のエンジン6)と、電動機(例えば、後述の実施形態のモータ7)と、第1~第3回転要素(例えば、後述の実施形態のサンギヤ32、リングギヤ35、キャリア36)を互いに差動回転可能に構成した差動式減速機(例えば、後述の実施形態の差動式減速機30、遊星歯車機構31)と、該差動式減速機の前記第1回転要素に結合され第1断接手段(例えば、後述の実施形態の第1クラッチ41)を介して選択的に前記内燃機関に接続される第1の入出力軸(例えば、後述の実施形態の第1主軸11)と、第2断接手段(例えば、後述の実施形態の第2クラッチ42)を介して選択的に前記内燃機関に接続される第2の入出力軸(例えば、後述の実施形態の第2中間軸16)と、前記第1の入出力軸と前記第2の入出力軸と動力伝達可能に配置された出入力軸(例えば、後述の実施形態のカウンタ軸14)と、を備え、前記電動機は前記第1回転要素又は前記第3回転要素に接続され、前記第1の入出力軸には第1同期装置(例えば、後述の実施形態の第1変速用シフター51)により選択可能な複数のギヤ(例えば、後述の実施形態の第3速用駆動ギヤ23a、第5速用駆動ギヤ25a、第7速用駆動ギヤ97a)からなる第1ギヤ群が設けられ、前記第2の入出力軸には第2同期装置(例えば、後述の実施形態の第2変速用シフター52)により選択可能な複数のギヤ(例えば、後述の実施形態の第2速用駆動ギヤ22a、第4速用駆動ギヤ24a、第6速用駆動ギヤ96a)からなる第2ギヤ群が設けられ、前記第1断接手段を締結して前記第1同期装置により選択された前記第1ギヤ群のギヤを介して駆動中に、前記第1断接手段と前記第2断接手段とをつなぎかえることにより前記第2同期装置により選択された前記第2ギヤ群のギヤで駆動可能な車両用駆動装置(例えば、後述の実施形態の車両用駆動装置1、1A、1B)の制御装置であって、
前記内燃機関の動力を前記第2ギヤ群のギヤを介して前記出入力軸に伝達して駆動中に、前記電動機の回転数が所定回転数を超えないように、前記第1ギヤ群のうち前記第2ギヤ群のギヤより高速側のギヤにプレシフトすることを特徴とする車両用駆動装置の制御装置。
前記車両用駆動装置は前記電動機が前記第1回転要素に接続され、前記第3回転要素にはロック機構(例えば、後述の実施形態のシンクロ機構61)が設けられていることを特徴とする請求項2に記載の車両用駆動装置の制御装置。
前記車両用駆動装置は前記電動機が前記第3回転要素に接続され、前記第2回転要素には前記内燃機関と前記電動機の合成動力が出力されることを特徴とする。
前記出入力軸には、前記第1ギヤ郡のギヤと前記第2ギヤ群のギヤとが共に噛合する複数のギヤ(例えば、後述の実施形態の第1共用従動ギヤ23b、第2共用従動ギヤ24b、第3共用従動ギヤ96b)よりなる第3ギヤ群が設けられることを特徴とする。
車速を検出する車速検出手段(例えば、後述の実施形態の車速検出手段58)と、
前記第1同期装置の接続位置を検出する同期位置検出手段(例えば、後述の実施形態の同期位置検出手段57)と、を備え、
前記第1同期装置の接続位置に応じて予め定められた車速の範囲内で前記電動機が回転するように、前記第1同期装置を制御することを特徴とする。
前記第1の入出力軸の回転数を検出する検出手段(例えば、後述の実施形態の軸回転数検出手段59)を備え、
前記第1の入出力軸が所定の回転数の範囲内で回転するように、前記第1同期装置を制御することを特徴とする。
前記出入力軸の回転数を検出する検出手段(例えば、後述の実施形態の軸回転数検出手段59)と、
前記第1同期装置の接続位置を検出する同期位置検出手段(例えば、後述の実施形態の同期位置検出手段57)と、を備え、
前記第1同期装置の接続位置に応じて予め定められた前記出入力軸の回転数の範囲内で前記電動機が回転するように、前記第1同期装置を制御することを特徴とする。
前記電動機の回転数を検出する検出手段(例えば、後述の実施形態のモータ回転数検出手段8)を備え、
前記電動機が所定の回転数の範囲内で回転するように、前記第1同期装置を制御することを特徴とする。
前記電動機の温度を検出するか、又は電流値を検出し電流値から前記電動機の温度を推定する電動機温度検出手段(例えば、後述の実施形態のモータ温度検出手段9)を備え、 前記電動機の温度に応じてプレシフトするタイミングを補正することを特徴とする。
前記内燃機関の動力を前記第2ギヤ群のギヤを介して駆動中に、前記第1同期装置が前記第1ギヤ群の最高速ギヤを選択しているにも関わらず、前記電動機の回転数が所定の回転数を越えるか、又は前記電動機が所定の温度を超える場合には、前記第1同期装置をニュートラル状態にすることを特徴とする。
車両用駆動装置1は、図1に示すように、車両(図示せず)の駆動軸9,9を介して駆動輪DW,DW(被駆動部)を駆動するためのものであり、駆動源である内燃機関(以下「エンジン」という)6と、電動機(以下「モータ」という)7と、動力を駆動輪DW,DWに伝達するための変速機20と、変速機20の一部を構成する差動式減速機30と、を備えている。
ここで、第1共用従動ギヤ23bは、連結軸13に取り付けられた第3速用駆動ギヤ23aと噛合して第3速用駆動ギヤ23aと共に第3速用ギヤ対23を構成し、第2中間軸16に設けられた第2速用駆動ギヤ22aと噛合して第2速用駆動ギヤ22aと共に第2速用ギヤ対22を構成する。
第2共用従動ギヤ24bは、第1主軸11に設けられた第5速用駆動ギヤ25aと噛合して第5速用駆動ギヤ25aと共に第5速用ギヤ対25を構成し、第2中間軸16に設けられた第4速用駆動ギヤ24aと噛合して第4速用駆動ギヤ24aと共に第4速用ギヤ対24を構成する。
ファイナルギヤ26aは差動ギヤ機構8と噛合して、差動ギヤ機構8は、駆動軸9,9を介して駆動輪DW,DWに連結されている。従って、カウンタ軸14に伝達された動力はファイナルギヤ26aから差動ギヤ機構8、駆動軸9,9、駆動輪DW,DWへと出力される。
(1)第1伝達経路は、エンジン6のクランク軸6aが、第1主軸11、遊星歯車機構31、連結軸13、第3速用ギヤ対23(第3速用駆動ギヤ23a、第1共用従動ギヤ23b)、カウンタ軸14、ファイナルギヤ26a、差動ギヤ機構8、駆動軸9,9を介して、駆動輪DW,DWに連結される伝達経路である。ここで、差動式減速機である遊星歯車機構31の減速比は、第1伝達経路を介して伝達されるエンジントルクが第1速相当となるように設定されている。即ち、遊星歯車機構31の減速比と第3速用ギヤ対23の減速比をかけ合わせた減速比が第1速相当となるように設定されている。
(2)第2伝達経路は、エンジン6のクランク軸6aが、第2主軸12、第1アイドルギヤ列27A(アイドル駆動ギヤ27a、第1アイドル従動ギヤ27b、第2アイドル従動ギヤ27c)、第2中間軸16、第2速用ギヤ対22(第2速用駆動ギヤ22a、第1共用従動ギヤ23b)又は第4速用ギヤ対24(第4速用駆動ギヤ24a、第2共用従動ギヤ24b)、カウンタ軸14、ファイナルギヤ26a、差動ギヤ機構8、駆動軸9,9を介して、駆動輪DW,DWに連結される伝達経路である。
(3)第3伝達経路は、エンジン6のクランク軸6aが、第1主軸11、第3速用ギヤ対23(第3速用駆動ギヤ23a、第1共用従動ギヤ23b)又は第5速用ギヤ対25(第5速用駆動ギヤ25a、第2共用従動ギヤ24b)、カウンタ軸14、ファイナルギヤ26a、差動ギヤ機構8、駆動軸9,9を介して、駆動輪DW,DWに連結される伝達経路である。(4)第4伝達経路は、モータ7が、遊星歯車機構31又は第3速用ギヤ対23(第3速用駆動ギヤ23a、第1共用従動ギヤ23b)又は第5速用ギヤ対25(第5速用駆動ギヤ25a、第2共用従動ギヤ24b)、カウンタ軸14、ファイナルギヤ26a、差動ギヤ機構8、駆動軸9,9を介して、駆動輪DW,DWに連結される伝達経路である。
(5)第5伝達経路は、エンジン6のクランク軸6aが、第2主軸12、第2アイドルギヤ列27B(アイドル駆動ギヤ27a、第1アイドル従動ギヤ27b、第3アイドル従動ギヤ27d)、リバース軸17、後進用ギヤ列28(後進用駆動ギヤ28a、後進用従動ギヤ28b)、遊星歯車機構31、連結軸13、第3速用ギヤ対23(第3速用駆動ギヤ23a、第1共用従動ギヤ23b)、カウンタ軸14、ファイナルギヤ26a、差動ギヤ機構8、駆動軸9,9を介して、駆動輪DW,DWに連結される伝達経路である。
先ず、車両用駆動装置1における車両の停止中、即ち、イグニッションがOFF(IG_OFF)の状態について説明する。
イグニッションがOFFの状態においては、図3に示すように、エンジン6及びモータ7が停止しているため、トルクは発生していない。このとき、車両用駆動装置1は初期状態となっている。
1stモードで走行中に、モータ7を駆動して正転方向にモータトルクを印加することで、モータトルクがサンギヤ32からキャリア36に減速して伝達され、前述した第3速用ギヤ対23を通る第4伝達経路を介して駆動輪DW,DWに伝達される。言い換えると、エンジントルクとモータトルクがサンギヤ32に伝達され、合成トルクが駆動輪DW,DWに伝達される。一方、モータ7を駆動せずに、モータ7に逆転方向の回生トルクを印加させることにより、モータ7で充電することができる。
車両の後進走行には、エンジン6を用いる場合と、EV走行で後進走行する場合があるが、ここではエンジン6を用いる場合を説明し、EV走行で後進走行する場合はEV走行の説明とあわせて後述する。
エンジン6のトルクのみを用いる場合の後進走行は、初期状態から後進用シフター53を後進用接続位置でインギヤするとともにシンクロ機構61をロック状態にして第2クラッチ42を締結することにより実現される。これにより、エンジン6のトルクが、上述した第5伝達経路を介して駆動輪DW,DWに伝達される。この状態においても、モータ7を駆動して逆転方向にモータトルクを印加したり、正転方向に回生トルクを印加することでモータ7でアシスト又は充電を行なうことができる。
車両用駆動装置1は3つのEV走行モードを備えている。
1つ目のEV走行は、初期状態からシンクロ機構61をロック状態(OWC ロックON)にすることによりなされる1stEVモードである。
この状態で、モータ7を駆動(正転方向にトルクを印加)すると、図18(a)に示すように、ロータ72に接続された遊星歯車機構31のサンギヤ32が正転方向に回転する。このとき、図18(b)に示すように、第1及び第2クラッチ41、42が切断されているため、サンギヤ32に伝達された動力は第1主軸11からエンジン6のクランク軸6aに伝達されることはない。そして、シンクロ機構61のロックがなされているため、モータトルクがサンギヤ32からキャリア36に減速して伝達され、第3速用ギヤ対23を通る第4伝達経路を介して駆動輪DW,DWに伝達される。
また、この1st EVモードでの後進走行は、モータ7を逆転方向に駆動して逆転方向にモータトルクを印加することでなされる。
この状態で、モータ7を駆動(正転方向にトルクを印加)すると、図19(a)に示すように、ロータ72に接続された遊星歯車機構31は一体で正転方向に回転する。このとき、第1及び第2クラッチ41、42が切断されているため、サンギヤ32に伝達された動力は第1主軸11からエンジン6のクランク軸6aに伝達されることはない。そして、モータトルクが第3速用ギヤ対23を通る第4伝達経路を介して駆動輪DW,DWに伝達される。
また、この3rd EVモードでの後進走行は、モータ7を逆転方向に駆動して逆転方向にモータトルクを印加することでなされる。
この状態で、モータ7を駆動(正転方向にトルクを印加)すると、図20(a)に示すように、ロータ72に接続された遊星歯車機構31のサンギヤ32が正転方向に回転する。このとき、図20(b)に示すように、第1及び第2クラッチ41、42が切断されているため、サンギヤ32に伝達された動力は第1主軸11からエンジン6のクランク軸6aに伝達されることはない。そして、モータトルクが第5速用ギヤ対25を通る第4伝達経路を介して駆動輪DW,DWに伝達される。
また、この5th EVモードでの後進走行は、モータ7を逆転方向に駆動して逆転方向にモータトルクを印加することでなされる。
先ず、図19で示す3rd走行中に、モータ7のトルク抜きを行なうとともに第3速用接続位置でインギヤしていた第1変速用シフター51をニュートラル位置に戻す(S1)。続いて、第1クラッチ41を締結して(S2)、クランク軸6aをクランキングしてエンジン6を始動する(S3)。続いて、第1クラッチ41を切断し(S4)、シンクロ機構61をロックするとともに第1クラッチ41を締結する(S5)と同時に、モータトルクをあげてリングギヤ35を正転方向に回転させる(S6)。これにより、3rdEVモードでの走行から図5に示す第1速走行(1stモード アシスト)に移行することができる(S7)。
なお、第1クラッチ41を締結してエンジン6を始動する以外にも、第2クラッチ42を締結するとともに、第2変速用シフター52を第2速用接続位置又は第4速用接続位置でインギヤすることで、エンジン6を始動することができる。
車両の停車(アイドリング)中に充電する場合は、初期状態から第1クラッチ41を締結してアイドリングした状態からエンジントルクをあげることで、図22に示すように、サンギヤ32に直結したモータ7が正転方向に回転するとともに逆転方向にトルクが印加され、充電がなされる。このとき、シンクロ機構61のロックが解除されているため、リングギヤ35が空転しキャリア36にトルクが伝達されることはない。
ここで本実施形態では、ECU5は、モータ回転数検出手段8で検出したモータ7の回転数が予め定められた所定の回転数を超えないように、第1変速用シフター51により第2変速用シフター52がインギヤしている偶数ギヤ群のギヤより高速側の奇数ギヤ群のギヤにプレシフトする制御指令(以下、プレシフト制御と呼ぶ。)を出力する。
図中(1)は、図13(b)に示す4th Post3モードでアシスト走行を行なっている状態を示している。車速の上昇と共にモータ回転数が閾値1に近づくと(2)において、モータ7のトルク抜きを行なっている。これによりエンジン回転数は上昇する。そして、4th Post3モードにおけるエンジン走行から(3)において、モータ回転数が閾値1を越えないように第1変速用シフター51をニュートラル位置に戻す。このとき、車両用駆動装置1は図16(a)の4thモードの状態となっている。(4)は(3)の状態からモータ7の回転数あわせを行なった状態であり、(5)において第1変速用シフター51を第5速用接続位置でインギヤすることで図15に示す4thPre5モードのアシスト走行に移行している。これにより、車速が上昇しているにも関わらず、モータ7が過回転状態となるのを抑制することができる。
なお、本実施形態においては、モータ7の回転数に基づいてプレシフト制御を行なったが、これに限定されず、同期位置検出手段57で第1変速用シフター51の同期位置を検出し、第1変速用シフター51の同期位置に応じて予め定められた車速、第1主軸11又はカウンタ軸14の回転数の範囲内でモータ7が回転するようにプレシフトを行なってもよい。
ここで、第3共用従動ギヤ96bは、第1主軸11に設けられた第7速用駆動ギヤ97aと噛合して第7速用駆動ギヤ97aと共に第7速用ギヤ対97を構成し、第2中間軸16に設けられた第6速用駆動ギヤ96aと噛合して第6速用駆動ギヤ96aと共に第6速用ギヤ対26を構成する。
車両用駆動装置1Bは、変速機20Bにおいて遊星歯車機構31がトルク合成機構を構成しており、モータ7がリングギヤ35に接続され、サンギヤ32に伝達されるエンジントルクとリングギヤ35に入力されるモータトルクの合成トルクがキャリア36から第3速用ギヤ対23を介してカウンタ軸14に伝達されるように構成されている。
3 バッテリ(蓄電手段)
4 SOC検出手段(蓄電容量検出手段)
5 ECU
8 モータ回転数検出手段
9 モータ温度検出手段
57 同期位置検出手段
58 車速検出手段59 軸回転数検出手段
6 エンジン(内燃機関)
7 モータ(電動機)
11 第1主軸(第1の入出力軸)
12 第2主軸
13 連結軸
14 カウンタ軸(出入力軸)
15 第1中間軸16 第2中間軸(第2の入出力軸)
20、20A、20B 変速機
30 差動式減速機
31 遊星歯車機構
32 サンギヤ(第1回転要素)
35 リングギヤ(第3回転要素)
36 キャリア(第2回転要素)
41 第1クラッチ(第1断接手段)
42 第2クラッチ(第2断接手段)
61 シンクロ機構(ロック機構)
Claims (11)
- 内燃機関と、電動機と、第1断接手段を介して前記内燃機関に接続され第1同期装置により選択可能な複数のギヤからなる第1ギヤ群と、第2断接手段を介して前記内燃機関に接続され第2同期装置により選択可能な複数のギヤからなる第2ギヤ群と、を備え、前記第1ギヤ群には前記内燃機関と前記電動機の少なくとも一方の動力が入力され、前記第2ギヤ群には前記内燃機関の動力が入力され、前記第1断接手段を締結して前記第1同期装置により選択された前記第1ギヤ群のギヤを介して駆動中に、前記第1断接手段と前記第2断接手段とをつなぎかえることにより前記第2同期装置により選択された前記第2ギヤ群のギヤで駆動可能であって、且つ、前記電動機は前記第1ギヤ群を介して回転する車両用駆動装置の制御装置であって、
前記内燃機関の動力を前記第2ギヤ群のギヤを介して駆動中に、前記電動機の回転数が所定回転数を超えないように、前記第1ギヤ群のうち前記第2ギヤ群のギヤより高速側のギヤにプレシフトすることを特徴とする車両用駆動装置の制御装置。 - 内燃機関と、電動機と、第1~第3回転要素を互いに差動回転可能に構成した差動式減速機と、該差動式減速機の前記第1回転要素に結合され第1断接手段を介して選択的に前記内燃機関に接続される第1の入出力軸と、第2断接手段を介して選択的に前記内燃機関に接続される第2の入出力軸と、前記第1の入出力軸と前記第2の入出力軸と動力伝達可能に配置された出入力軸と、を備え、前記電動機は前記第1回転要素又は前記第3回転要素に接続され、前記第1の入出力軸には第1同期装置により選択可能な複数のギヤからなる第1ギヤ群が設けられ、前記第2の入出力軸には第2同期装置により選択可能な複数のギヤからなる第2ギヤ群が設けられ、前記第1断接手段を締結して前記第1同期装置により選択された前記第1ギヤ群のギヤを介して駆動中に、前記第1断接手段と前記第2断接手段とをつなぎかえることにより前記第2同期装置により選択された前記第2ギヤ群のギヤで駆動可能な車両用駆動装置の制御装置であって、
前記内燃機関の動力を前記第2ギヤ群のギヤを介して前記出入力軸に伝達して駆動中に、前記電動機の回転数が所定回転数を超えないように、前記第1ギヤ群のうち前記第2ギヤ群のギヤより高速側のギヤにプレシフトすることを特徴とする車両用駆動装置の制御装置。 - 前記車両用駆動装置は前記電動機が前記第1回転要素に接続され、前記第3回転要素にはロック機構が設けられていることを特徴とする請求項2に記載の車両用駆動装置の制御装置。
- 前記車両用駆動装置は前記電動機が前記第3回転要素に接続され、前記第2回転要素には前記内燃機関と前記電動機の合成動力が出力されることを特徴とする請求項2に記載の車両用駆動装置の制御装置。
- 前記出入力軸には、前記第1ギヤ郡のギヤと前記第2ギヤ群のギヤとが共に噛合する複数のギヤよりなる第3ギヤ群が設けられることを特徴とする請求項2~4のいずれか1項に記載の車両用駆動装置の制御装置。
- 車速を検出する車速検出手段と、
前記第1同期装置の接続位置を検出する同期位置検出手段と、を備え、
前記第1同期装置の接続位置に応じて予め定められた車速の範囲内で前記電動機が回転するように、前記第1同期装置を制御することを特徴とする請求項1~5のいずれか1項に記載の車両用駆動装置の制御装置。 - 前記第1の入出力軸の回転数を検出する検出手段を備え、
前記第1の入出力軸が所定の回転数の範囲内で回転するように、前記第1同期装置を制御することを特徴とする請求項2~5のいずれか1項に記載の車両用駆動装置の制御装置。 - 前記出入力軸の回転数を検出する検出手段と、
前記第1同期装置の接続位置を検出する同期位置検出手段と、を備え、
前記第1同期装置の接続位置に応じて予め定められた前記出入力軸の回転数の範囲内で前記電動機が回転するように、前記第1同期装置を制御することを特徴とする請求項2~5のいずれか1項に記載の車両用駆動装置の制御装置。 - 前記電動機の回転数を検出する検出手段を備え、
前記電動機が所定の回転数の範囲内で回転するように、前記第1同期装置を制御することを特徴とする請求項1~5のいずれか1項に記載の車両用駆動装置の制御装置。 - 前記電動機の温度を検出するか、又は電流値を検出し電流値から前記電動機の温度を推定する電動機温度検出手段を備え、
前記電動機の温度に応じてプレシフトするタイミングを補正することを特徴とする請求項1~9のいずれか1項に記載の車両用駆動装置の制御装置。 - 前記内燃機関の動力を前記第2ギヤ群のギヤを介して駆動中に、前記第1同期装置が前記第1ギヤ群の最高速ギヤを選択しているにも関わらず、前記電動機の回転数が所定の回転数を越えるか、又は前記電動機が所定の温度を超える場合には、前記第1同期装置をニュートラル状態にすることを特徴とする請求項1~10のいずれか1項に記載の車両用駆動装置の制御装置。
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JP3921218B2 (ja) | 2004-11-25 | 2007-05-30 | 本田技研工業株式会社 | ハイブリッド車両の制御装置 |
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JP2009165784A (ja) | 2008-01-15 | 2009-07-30 | Treasure Hunting Corporation:Kk | トレジャーシャインネイル |
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2010
- 2010-07-13 US US13/383,728 patent/US8827852B2/en not_active Expired - Fee Related
- 2010-07-13 WO PCT/JP2010/061854 patent/WO2011007786A1/ja active Application Filing
- 2010-07-13 JP JP2011522820A patent/JP5279908B2/ja not_active Expired - Fee Related
- 2010-07-13 DE DE112010002939T patent/DE112010002939T5/de not_active Ceased
- 2010-07-13 CN CN201080031306.3A patent/CN102470861B/zh not_active Expired - Fee Related
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JP2002204504A (ja) * | 2000-09-14 | 2002-07-19 | Hitachi Ltd | 車両用動力伝達システムおよびそれを搭載した自動車 |
JP2006118590A (ja) * | 2004-10-21 | 2006-05-11 | Nissan Motor Co Ltd | ハイブリッド車両 |
JP2009073390A (ja) * | 2007-09-21 | 2009-04-09 | Toyota Motor Corp | 車両制御装置 |
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JP2012166574A (ja) * | 2011-02-09 | 2012-09-06 | Honda Motor Co Ltd | ハイブリッド車両 |
JP2013028231A (ja) * | 2011-07-27 | 2013-02-07 | Honda Motor Co Ltd | ハイブリッド車両及びその制御方法 |
JP2015196405A (ja) * | 2014-03-31 | 2015-11-09 | 本田技研工業株式会社 | ハイブリッド車両 |
Also Published As
Publication number | Publication date |
---|---|
DE112010002939T5 (de) | 2012-09-20 |
US8827852B2 (en) | 2014-09-09 |
US20120115674A1 (en) | 2012-05-10 |
JPWO2011007786A1 (ja) | 2012-12-27 |
CN102470861A (zh) | 2012-05-23 |
JP5279908B2 (ja) | 2013-09-04 |
CN102470861B (zh) | 2014-10-15 |
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