WO2013145193A1 - ハイブリッド車両用駆動装置 - Google Patents
ハイブリッド車両用駆動装置 Download PDFInfo
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- WO2013145193A1 WO2013145193A1 PCT/JP2012/058255 JP2012058255W WO2013145193A1 WO 2013145193 A1 WO2013145193 A1 WO 2013145193A1 JP 2012058255 W JP2012058255 W JP 2012058255W WO 2013145193 A1 WO2013145193 A1 WO 2013145193A1
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- Prior art keywords
- planetary gear
- rotating
- electrical machine
- gear mechanism
- engine
- Prior art date
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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
- 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 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
- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution 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
- 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 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 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 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
- B60K6/365—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 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 with the gears having orbital motion
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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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—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 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 driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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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
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
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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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—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 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 driveline clutches
- B60K2006/381—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 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 driveline clutches characterized by driveline brakes
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
- F16H2037/105—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing
- F16H2037/106—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing with switching means to provide two variator modes or ranges
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
Definitions
- the present invention relates to a hybrid vehicle drive device.
- Patent Document 1 discloses a power train technique that can be switched between two modes of an input split mode and a mixed split mode.
- a highly efficient drive device for a hybrid vehicle is desired. For example, it is preferable that the efficiency during reverse running can be improved.
- An object of the present invention is to provide a highly efficient drive device for a hybrid vehicle.
- the hybrid vehicle drive device of the present invention includes an engine, a first rotating electrical machine, a second rotating electrical machine, a first differential mechanism, a second differential mechanism, and a switching device, and the first differential
- the mechanism and the second differential mechanism are connected via an output rotating element, and the engine, the first rotating electrical machine, and the second rotating electrical machine rotate the first differential mechanism and the second differential mechanism.
- the switching device includes an independent mode in which the first differential mechanism and the second differential mechanism rotate differentially independently from each other, and the first differential mechanism.
- a four-element mode in which one rotating element of the second differential mechanism is coupled, and the four-element mode includes a rotating element connected to the engine and the first rotating electric machine. And a rotating element connected to the second rotating electrical machine.
- the output rotating element are differentially rotated, and are connected to the first rotating electrical machine between the rotating element connected to the engine and the output rotating element in the collinear diagram in the four-element mode. Either the rotating element or the rotating element connected to the second rotating electrical machine is located.
- the arrangement order of the rotating elements is connected to the rotating element connected to the first rotating electric machine, the output rotating element, and the second rotating electric machine. It is preferable that the rotary elements are arranged in the order of the rotary elements connected to the engine.
- the rotation elements are arranged in the following order: a rotation element connected to the first rotating electrical machine, a rotation element connected to the engine, and the second It is preferable that the rotating elements connected to the rotating electrical machine be in the order of the output rotating elements.
- the hybrid vehicle drive device includes a first planetary gear mechanism as the first differential mechanism, a second planetary gear mechanism as the second differential mechanism, a clutch as the switching device, and a brake.
- the rotating element connected to the engine is a sun gear of the first planetary gear mechanism
- the rotating element connected to the first rotating electrical machine is a ring gear of the first planetary gear mechanism
- the rotating element connected to the rotating electrical machine is a carrier of the second planetary gear mechanism
- the output rotating element is a carrier of the first planetary gear mechanism and a sun gear of the second planetary gear mechanism
- the ring gear of the planetary gear mechanism is connected to the sun gear and the engine of the first planetary gear mechanism via the clutch
- the brake is connected to the ring gear of the second planetary gear mechanism. It is preferred to regulate the rotation.
- the hybrid vehicle drive device includes a first planetary gear mechanism as the first differential mechanism, a second planetary gear mechanism as the second differential mechanism, a clutch as the switching device, and a brake.
- the rotating element connected to the engine is a sun gear of the first planetary gear mechanism
- the rotating element connected to the first rotating electrical machine is a ring gear of the first planetary gear mechanism
- the rotating element connected to the rotating electrical machine is a carrier of the second planetary gear mechanism
- the output rotating element is a carrier of the first rotating electrical machine and a ring gear of the second planetary gear mechanism
- the sun gear of the planetary gear mechanism is connected to the sun gear of the first planetary gear mechanism and the engine via the clutch
- the brake is connected to the sun gear of the second planetary gear mechanism. It is preferable to regulate.
- the hybrid vehicle drive device includes a first planetary gear mechanism as the first differential mechanism, a second planetary gear mechanism as the second differential mechanism, a clutch as the switching device, and a brake.
- the rotating element connected to the engine is a carrier of the first planetary gear mechanism
- the rotating element connected to the first rotating electrical machine is a ring gear of the first planetary gear mechanism
- the rotating element connected to the rotating electrical machine is a carrier of the second planetary gear mechanism
- the output rotating element is a sun gear of the first planetary gear mechanism and a sun gear of the second planetary gear mechanism
- the ring gear of the planetary gear mechanism is connected to the carrier of the first planetary gear mechanism and the engine via the clutch
- the brake is connected to the ring gear of the second planetary gear mechanism. It is preferred to regulate the rotation.
- the hybrid vehicle drive device includes a first planetary gear mechanism as the first differential mechanism, a second planetary gear mechanism as the second differential mechanism, a clutch as the switching device, and a brake.
- the rotating element connected to the engine is a carrier of the first planetary gear mechanism
- the rotating element connected to the first rotating electrical machine is a ring gear of the first planetary gear mechanism
- the rotating element connected to the rotating electrical machine is a carrier of the second planetary gear mechanism
- the output rotating element is a sun gear of the first planetary gear mechanism and a ring gear of the second planetary gear mechanism
- the sun gear of the two planetary gear mechanism is connected to the carrier of the first planetary gear mechanism and the engine through the clutch
- the brake is a sun gear of the second planetary gear mechanism. It is preferable to restrict the rotation.
- the hybrid vehicle drive device includes an engine, a first rotating electrical machine, a second rotating electrical machine, a first differential mechanism, a second differential mechanism, and a switching device.
- the first differential mechanism and the second differential mechanism are connected via an output rotary element, and the engine, the first rotary electric machine, and the second rotary electric machine are the rotary elements of the first differential mechanism and the second differential mechanism. Each of them is connected to a different rotating element.
- the switching device includes an independent mode in which the first differential mechanism and the second differential mechanism rotate differentially independently of each other, one rotating element of the first differential mechanism, and one rotating element of the second differential mechanism. Are switched to a four-element mode in which and are connected.
- the rotating element connected to the engine, the rotating element connected to the first rotating electrical machine, the rotating element connected to the second rotating electrical machine, and the output rotating element rotate differentially.
- either the rotating element connected to the first rotating electric machine or the rotating element connected to the second rotating electric machine is between the rotating element connected to the engine and the output rotating element.
- the hybrid vehicle drive device of the present invention for example, there is an effect that it is possible to suppress a decrease in effective driving force during reverse traveling.
- FIG. 1 is a skeleton diagram of a vehicle according to the first embodiment.
- FIG. 2 is a diagram showing an engagement table of the hybrid vehicle drive device according to the first embodiment.
- FIG. 3 is a collinear diagram of the four-element mode of the hybrid vehicle drive device according to the first embodiment.
- FIG. 4 is a collinear diagram during reverse running in the HV-2 mode.
- FIG. 5 is an alignment chart at the time of forward movement in the HV-2 mode.
- FIG. 6 is a diagram illustrating the theoretical transmission efficiency of the hybrid vehicle drive device according to the first embodiment.
- FIG. 7 is a skeleton diagram of the vehicle according to the first modification example of the first embodiment.
- FIG. 8 is a skeleton diagram of a vehicle according to a second modification of the first embodiment.
- FIG. 1 is a skeleton diagram of a vehicle according to the first embodiment.
- FIG. 2 is a diagram showing an engagement table of the hybrid vehicle drive device according to the first embodiment.
- FIG. 3 is
- FIG. 9 is a collinear diagram of the four-element mode of the hybrid vehicle drive device according to the second modification example of the first embodiment.
- FIG. 10 is a skeleton diagram of a vehicle according to a third modification of the first embodiment.
- FIG. 11 is a skeleton diagram of the vehicle according to the second embodiment.
- FIG. 12 is a collinear diagram of the four-element mode of the hybrid vehicle drive device according to the second embodiment.
- FIG. 13 is an alignment chart at the time of forward movement in the HV-2 mode of the second embodiment.
- FIG. 14 is a diagram showing the theoretical transmission efficiency of the hybrid vehicle drive device according to the second embodiment.
- FIG. 15 is an alignment chart at the time of reverse running in the HV-2 mode of the second embodiment.
- FIG. 16 is a skeleton diagram of a vehicle according to a first modification of the second embodiment.
- FIG. 17 is a skeleton diagram of a vehicle according to a second modification of the second embodiment.
- FIG. 18 is a collinear diagram of a four-element mode of a hybrid vehicle drive device according to a second modification of the second embodiment.
- FIG. 19 is a skeleton diagram of a vehicle according to a third modification of the second embodiment.
- FIG. 1 is a skeleton diagram of a vehicle according to the first embodiment of the present invention
- FIG. 2 is a diagram showing an engagement table of the hybrid vehicle drive device according to the first embodiment.
- a vehicle 100 shown in FIG. 1 is a hybrid vehicle, and includes an engine 1, a first rotating electrical machine MG1, a second rotating electrical machine MG2, a first planetary gear mechanism 10, a second planetary gear mechanism 20, a clutch 3, and a brake 4. It is configured.
- the hybrid vehicle drive device 1-1 according to the present embodiment includes an engine 1, a first rotating electrical machine MG1, a second rotating electrical machine MG2, a first planetary gear mechanism 10, a second planetary gear mechanism 20, and a clutch 3. It consists of
- the hybrid vehicle drive device 1-1 may further include a brake 4 and an ECU 50.
- the first planetary gear mechanism 10 corresponds to the first differential mechanism
- the second planetary gear mechanism 20 corresponds to the second differential mechanism
- the clutch 3 corresponds to the switching device.
- the first differential mechanism and the second differential mechanism are not limited to the planetary gear mechanisms 10 and 20.
- Each differential mechanism may be, for example, a Ravigneaux type planetary gear mechanism or another known differential mechanism, and may be any one that can switch between an independent mode and a four-element mode, which will be described later.
- the switching device is not limited to the clutch 3.
- the engine 1 converts the combustion energy of the fuel into a rotary motion of the rotary shaft 2 and outputs it.
- the engine 1 is arranged such that the rotary shaft 2 extends in the vehicle width direction.
- another known engine may be mounted on vehicle 100.
- the rotating shaft 2 is connected to the first sun gear 11 of the first planetary gear mechanism 10. That is, the first sun gear 11 is a rotating element connected to the engine 1.
- the first planetary gear mechanism 10 is a single pinion type and includes a first sun gear 11, a first pinion gear 12, a first ring gear 13, and a first carrier 14.
- the first ring gear 13 is coaxial with the first sun gear 11 and is disposed on the radially outer side of the first sun gear 11.
- the first pinion gear 12 is disposed between the first sun gear 11 and the first ring gear 13 and meshes with the first sun gear 11 and the first ring gear 13, respectively.
- the first pinion gear 12 is rotatably supported by the first carrier 14.
- the first carrier 14 is rotatably supported on the same axis as the rotary shaft 2. Therefore, the first pinion gear 12 can rotate (revolve) around the central axis of the rotary shaft 2 together with the first carrier 14, and is supported by the first carrier 14 and rotates around the central axis of the first pinion gear 12. (Rotation) is possible.
- the first planetary gear mechanism 10 has a function as a power dividing planetary that divides the power of the engine 1 into an output side and a first rotating electrical machine MG1 side.
- the second planetary gear mechanism 20 is disposed coaxially with the first planetary gear mechanism 10 and is disposed adjacent to the first planetary gear mechanism 10.
- the first rotating electrical machine MG1, the first planetary gear mechanism 10, the clutch 3, the output gear 7, the second planetary gear mechanism 20, the second rotating electrical machine MG2, and the brake 4 are arranged in order from the engine 1 side on the same axis as the rotating shaft 2. Is arranged.
- the second planetary gear mechanism 20 is a single pinion type, and includes a second sun gear 21, a second pinion gear 22, a second ring gear 23, and a second carrier 24.
- the second ring gear 23 is coaxial with the second sun gear 21 and is disposed on the radially outer side of the second sun gear 21.
- the second pinion gear 22 is disposed between the second sun gear 21 and the second ring gear 23 and meshes with the second sun gear 21 and the second ring gear 23, respectively.
- the second pinion gear 22 is rotatably supported by the second carrier 24.
- the second carrier 24 is connected to the rotating shaft 32 of the second rotating electrical machine MG2.
- the rotating shaft 32 is rotatably supported on the same axis as the rotating shaft 2. Therefore, the second pinion gear 22 can rotate (revolve) around the central axis of the rotary shaft 2 together with the second carrier 24, and is supported by the second carrier 24 and rotates around the central axis of the second pinion gear 22. (Rotation) is possible.
- the second carrier 24 corresponds to the rotating element connected to the second rotating electrical machine MG2.
- the first ring gear 13 is connected to the rotating shaft 31 of the first rotating electrical machine MG1. That is, the first ring gear 13 is a rotating element connected to the first rotating electrical machine MG1.
- the first carrier 14 is connected to the second sun gear 21 via the connection member 6.
- the connecting member 6 has a cylindrical shape and is disposed on the radially outer side of the second planetary gear mechanism 20.
- An output gear 7 is provided on the outer periphery of the connecting member 6.
- the output gear 7 is a gear disposed on the output shafts of the first planetary gear mechanism 10 and the second planetary gear mechanism 20, and is connected to the drive wheels of the vehicle 100 via a reduction mechanism or the like.
- the output gear 7 is a gear that outputs the power of the engine 1, the first rotating electrical machine MG1, and the second rotating electrical machine MG2 to the drive wheels.
- the first carrier 14 and the second sun gear 21 correspond to the output rotation element, and the first planetary gear mechanism 10 and the second planetary gear mechanism 20 are connected via the output rotation element.
- the engine, the first rotary electric machine MG1 and the second rotary electric machine MG2 are the rotation elements 11, 13, 14, 21, 23, 24 of the first planetary gear mechanism 10 and the second planetary gear mechanism 20.
- the rotating elements are different from each other and are connected to rotating elements different from the output rotating elements 14 and 21.
- the second ring gear 23 is connected to the rotary shaft 5.
- the rotating shaft 5 is coaxial with the rotating shaft 2 and is disposed on an extension line of the rotating shaft 2.
- the clutch 3 is a clutch device that can connect and disconnect the rotating shaft 2 and the rotating shaft 5. That is, the second ring gear 23 is connected to the first sun gear 11 and the engine 1 via the rotating shaft 5 and the clutch 3.
- the clutch 3 is, for example, a friction engagement type or meshing type clutch device.
- the clutch 3 has an input side engaging member connected to the rotating shaft 2 and an output side engaging member connected to the rotating shaft 5.
- the clutch 3 connects the rotating shaft 2 and the rotating shaft 5 by engaging the input side engaging member and the output side engaging member. Further, the clutch 3 interrupts power transmission between the rotating shaft 2 and the rotating shaft 5 by releasing the engagement between the input side engaging member and the output side engaging member.
- the brake 4 regulates the rotation of the second ring gear 23. Specifically, the brake 4 restricts the rotation of the engaging portion 5 a of the rotating shaft 5.
- the engaging portion 5a is a disc disposed at the end of the rotating shaft 5 opposite to the engine side.
- the brake 4 regulates the rotation of the second ring gear 23 by engaging with the engaging portion 5a.
- the brake 4 can be, for example, a friction engagement type or a meshing type.
- clutch 3 and the brake 4 are meshing clutches, for example, dog-tooth meshing type
- drag loss at the time of non-engagement is small and high efficiency can be achieved as compared with a wet friction material clutch.
- An electromagnetic type actuator can be used as the actuator of the meshing clutch. In this case, a hydraulic circuit becomes unnecessary, and T / A can be simplified and reduced in weight.
- the first rotating electrical machine MG1 and the second rotating electrical machine MG2 each have a function as a motor (electric motor) and a function as a generator.
- the first rotating electrical machine MG1 and the second rotating electrical machine MG2 are connected to a battery via an inverter.
- the first rotating electrical machine MG1 and the second rotating electrical machine MG2 can convert the electric power supplied from the battery into mechanical power and output it, and are driven by the input power to convert the mechanical power into electric power. Can be converted.
- the electric power generated by the rotating electrical machines MG1 and MG2 can be stored in the battery.
- an AC synchronous motor generator can be used as the first rotating electrical machine MG1 and the second rotating electrical machine MG2.
- the vehicle 100 includes an ECU 50.
- the ECU 50 is an electronic control unit having a computer.
- the ECU 50 has a function as a control device that controls each part of the vehicle 100.
- the ECU 50 is connected to the engine 1, the first rotating electrical machine MG1, the second rotating electrical machine MG2, the clutch 3 and the brake 4, and the engine 1, the first rotating electrical machine MG1, the second rotating electrical machine MG2, the clutch 3 and the brake 4 are connected. Can be controlled.
- the ECU 50 can control the torque and rotation speed of the engine 1 by fuel injection control, ignition control, electronic throttle control, and the like of the engine 1. Further, the ECU 50 can control the rotation speed and torque of the first rotating electrical machine MG1 and the second rotating electrical machine MG2. Further, the ECU 50 can control the engagement / release state of the clutch 3 and the brake 4 by controlling the hydraulic pressure supplied to the clutch 3 and the brake 4 from a hydraulic control device (not shown).
- the ECU 50 has a vehicle speed, an accelerator opening, a rotational speed of the first rotating electrical machine MG1 (hereinafter also simply referred to as “MG1 rotational speed”), and a rotational speed of the second rotating electrical machine MG2 (hereinafter simply referred to as “MG2 rotational speed”). And a sensor for detecting the output shaft speed, the state of the battery, and the like.
- the ECU 50 can calculate a required output for the vehicle 100 based on information acquired from each sensor, and can control the engine 1, the rotating electrical machines MG1, MG2, the clutch 3, the brake 4, and the like.
- the vehicle 100 has two EV driving modes, EV-1 mode and EV-2 mode, and two HV driving modes, HV-1 mode and HV-2 mode.
- BK indicates the brake 4
- CL indicates the clutch 3.
- a circle indicates engagement
- a blank column indicates release.
- the EV travel is a travel mode in which the vehicle 100 travels using at least one of the first rotating electrical machine MG1 and the second rotating electrical machine MG2 as a power source. In the EV travel mode, the operation of the engine 1 can be stopped and the vehicle 100 can travel.
- HV traveling is a traveling mode in which the vehicle 100 travels using at least the engine 1 as a power source.
- the HV traveling mode in addition to the engine 1, at least one of the first rotating electrical machine MG1 and the second rotating electrical machine MG2 can be used as a power source.
- the clutch 3 can be switched between an independent mode and a four-element mode.
- the first planetary gear mechanism 10 and the second planetary gear mechanism 20 can function in the independent mode by releasing the clutch 3.
- the independent mode is a mode in which the first planetary gear mechanism 10 and the second planetary gear mechanism 20 are differentially rotated independently of each other. In the independent mode, the first planetary gear mechanism 10 and the second planetary gear mechanism 20 can rotate independently and differentially while the first carrier 14 and the second sun gear 21 rotate at the same rotational speed.
- the first planetary gear mechanism 10 and the second planetary gear mechanism 20 can function as a four-element mode differential mechanism.
- the four-element mode is a mode in which one rotating element of the first planetary gear mechanism 10 and one rotating element of the second planetary gear mechanism 20 are connected.
- the differential rotation of the first planetary gear mechanism 10 and the second planetary gear mechanism 20 independently is restricted.
- the first planetary gear mechanism 10 and the second planetary gear mechanism 20 function as one differential mechanism having four rotating elements in a state where they are connected to each other via two rotating elements.
- One of the rotating elements coupled to each other in the four-element mode is preferably a rotating element connected to the engine 1, and the other is preferably a rotating element connected to the brake 4.
- FIG. 3 is a collinear diagram of the four-element mode of the hybrid vehicle drive device according to the first embodiment.
- the clutch 3 As the clutch 3 is engaged, the first sun gear 11 and the second ring gear 23 are connected. Thereby, the 1st sun gear 11 and the 2nd ring gear 23 become one rotation element which rotates integrally.
- the first planetary gear mechanism 10 and the second planetary gear mechanism 20 include a first sun gear 11 and a second ring gear 23 connected to the engine 1, and a first ring gear 13 connected to the first rotating electrical machine MG1.
- the second carrier 24 connected to the second rotating electrical machine MG2, the first carrier 14 as the output rotating element, and the second sun gear 21 are in a four-element mode in which they are differentially rotated. In the four-element mode, the four rotating elements can transmit power while performing differential rotation.
- the rotation speeds of the four rotation elements are arranged in a straight line. That is, the number of rotations of the first ring gear 13 and the first rotating electrical machine MG1, the number of rotations of the first carrier 14 and the second sun gear 21, which are output rotating elements, and the number of rotations of the second carrier 24 and the second rotating electrical machine MG2. And the rotation speed of the engine 1, the 1st sun gear 11, and the 2nd ring gear 23 is located on the same straight line.
- Reference numeral S1 denotes the first sun gear 11
- C1 denotes the first carrier 14
- R1 denotes the first ring gear 13
- S2 denotes the second sun gear 21
- C2 denotes the second carrier 24, and R2 denotes the second ring gear 23.
- the ECU 50 engages the clutch 3 in the EV-2 mode and the HV-2 mode. That is, in the EV-2 mode and the HV-2 mode, traveling is performed with the differential mechanism as a four-element mode.
- EV-1 mode In the EV-1 mode, the ECU 50 engages the brake 4 and releases the clutch 3. Engagement of the brake 4 restricts the rotation of the second ring gear 23. Therefore, the second ring gear 23 receives a reaction force against the output torque of the second rotating electrical machine MG2 (hereinafter also referred to as “MG2 torque”), and power is output from the second sun gear 21 to the output gear 7. Can do. That is, in the EV-1 mode, the vehicle 100 can be driven using the second rotating electrical machine MG2 as a power source. In the EV-1 mode, the vehicle 100 can move both forward and backward by switching the rotation direction of the second rotating electrical machine MG2.
- the ECU 50 engages both the brake 4 and the clutch 3 in the EV-2 mode. Engagement of the brake 4 restricts the rotation of the second ring gear 23. Further, the engagement of the clutch 3 connects the first sun gear 11, the engine 1, and the second ring gear 23. Therefore, in the EV-2 mode, the rotation of the second ring gear 23, the first sun gear 11, and the engine 1 is restricted.
- the first sun gear 11 whose rotation is restricted serves as a reaction force against the torque of the first rotating electrical machine MG1 (hereinafter also referred to as “MG1 torque”), and outputs power from the first carrier 14 to the output gear 7. Can do. Further, the second ring gear 23 whose rotation is restricted is a reaction force receiver for the MG2 torque, and power can be output from the second sun gear 21 to the output gear 7.
- the vehicle 100 in the EV-2 mode, the vehicle 100 can be driven using either the first rotating electrical machine MG1 or the second rotating electrical machine MG2 as a power source, or the first rotating electrical machine MG1 and the second rotating electrical machine MG2 can be used as the power source. It is also possible to drive the vehicle 100. In the EV-2 mode, the vehicle 100 can be moved forward and backward by switching the rotation directions of the first rotating electrical machine MG1 and the second rotating electrical machine MG2.
- HV-1 mode In the HV-1 mode, the ECU 50 engages the brake 4 and releases the clutch 3. Engagement of the brake 4 restricts the rotation of the second ring gear 23. Therefore, the second ring gear 23 receives a reaction force against the MG2 torque, and can output power from the second sun gear 21 to the output gear 7.
- the first rotating electrical machine MG1 receives a reaction force against the engine torque, and can output power from the first carrier 14 to the output gear 7. Alternatively, the first rotating electrical machine MG1 can also power-drive and output assist torque.
- FIG. 4 is a collinear diagram during reverse running in the HV-2 mode
- FIG. 5 is a collinear diagram during forward traveling in the HV-2 mode.
- the rotation elements are arranged in the order of the first ring gear 13, the first carrier 14 and the second sun gear 21, the second carrier 24, the first sun gear 11 and the second ring gear 23. It is. That is, in the collinear diagram of the four-element mode, the second rotating electrical machine MG2 is disposed between the rotating element (first sun gear 11) connected to the engine 1 and the output rotating element (first carrier 14 and second sun gear 21). A connected rotating element (second carrier 24) is located.
- reverse running is possible by the engine direct torque, and the driving force during reverse running can be increased.
- the ECU 50 causes the second rotating electrical machine MG2 to function as a reaction force receiver of the engine 1 during reverse running in the HV-2 mode.
- the second rotating electrical machine MG2 outputs a reaction torque against the engine torque, and causes the output gear 7 to output power.
- the second rotating electrical machine MG2 outputs a negative torque.
- the negative torque is a torque in the negative rotation direction.
- the negative rotation direction is the opposite rotation direction when the rotation direction of the output gear 7 when the vehicle 100 moves forward is the positive rotation direction. If the second rotating electrical machine MG2 is controlled to perform normal rotation in the reverse running, the second rotating electrical machine MG2 can generate reaction force torque by power generation.
- the first rotating electrical machine MG1 can generate assist torque, perform power generation, and can idle without powering or power generation.
- ECU 50 can determine the operation of first rotating electrical machine MG1 during reverse traveling based on the state of charge SOC of the battery.
- the vehicle 100 can be reversely driven by the direct torque of the engine 1 in the HV-2 mode.
- the rotating element connected to the second rotating electrical machine MG2 is located between the rotating element connected to the engine 1 and the output rotating element.
- the second rotating electrical machine MG2 as a reaction force receiver, the positive rotation positive torque of the engine 1 can be converted into the negative rotation negative torque and output from the output rotation element. Therefore, the driving force during reverse traveling can be increased.
- the reverse traveling in the HV-2 mode by the four-element mode can improve the efficiency during the reverse traveling.
- the ECU 50 can select the HV-2 mode when performing reverse traveling or when reverse traveling is predicted, and can select the HV-1 mode or the HV-2 mode as appropriate in other cases. Thereby, for example, it is possible to travel by selecting a high-efficiency HV mode according to the traveling state.
- Some drive devices capable of the four-element mode work in a direction in which the engine torque interferes with the running torque during reverse running depending on the arrangement order in the alignment chart.
- the rotating element connected to the engine 1 and the output between the rotating element connected to the first rotating electric machine MG1 and the rotating element connected to the second rotating electric machine MG2.
- the engine torque acts in a direction that hinders the travel torque.
- the hybrid vehicle drive device 1-1 according to the present embodiment, the vehicle 100 can be reversely driven by the direct torque of the engine 1. Therefore, sufficient driving force can be ensured during reverse travel, and the reverse travel area can be expanded.
- the hybrid vehicle drive device 1-1 can transmit the engine torque to the output rotation element with high efficiency by setting the rotation speed of the second rotating electrical machine MG2 to low. For example, if the number of rotations of the second rotating electrical machine MG2 is set to 0, the electric path becomes 0, and the operation can be performed with high efficiency.
- the first rotating electrical machine MG1 In reverse running in the HV-2 mode, the first rotating electrical machine MG1 can be powered using the power source, and the driving force during reverse running can be increased.
- the ECU 50 causes the first rotating electrical machine MG1 to function as a reaction force receiver of the engine 1 when moving forward in the HV-2 mode.
- the first rotating electrical machine MG1 outputs a reaction torque against the engine torque, and causes the output gear 7 to output power.
- the first rotating electrical machine MG1 outputs a positive torque. That is, the first rotating electrical machine MG1 can power and output reaction force torque.
- the second rotating electrical machine MG2 can generate assist torque, generate power, or idle without powering or power generation.
- the ECU 50 can charge the battery by causing the second rotating electrical machine MG2 to generate power so as to maintain the state of charge SOC of the battery, for example.
- FIG. 6 is a diagram showing the theoretical transmission efficiency of the hybrid vehicle drive device 1-1 according to the present embodiment.
- the horizontal axis indicates the gear ratio
- the vertical axis indicates the theoretical transmission efficiency.
- the gear ratio is the ratio (reduction ratio) of the input side rotational speed to the output side rotational speed of the first planetary gear mechanism 10 and the second planetary gear mechanism 20, for example, the first carrier 14 and the second sun gear 21.
- the ratio of the rotational speed of the first sun gear 11 to the rotational speed of On the horizontal axis the left side is the high gear side with a small gear ratio, and the right side is the low gear side with a large gear ratio.
- the theoretical transmission efficiency is 1 when the power input to the planetary gear mechanisms 10 and 20 is all transmitted to the output gear 7 by mechanical transmission without passing through the electrical path.
- the gear ratio ⁇ 1 is a gear ratio at which the rotation speed of the first rotating electrical machine MG1 (first ring gear 13) is zero. At the speed ratio ⁇ 1, an electric path due to the reaction force of the first rotating electrical machine MG1 does not occur, and power can be transmitted from the engine 1 to the output gear 7 only by transmission of mechanical power.
- the gear ratio ⁇ 1 is a gear ratio on the underdrive side, that is, a gear ratio larger than the constant speed. Therefore, the hybrid vehicle drive device 1-1 can operate with high efficiency in a traveling state in which the rotation speed of the output rotation element is smaller than the rotation speed of the rotation element connected to the engine 1.
- another mechanical point of the hybrid vehicle drive device 1-1 is a mechanical point when the second rotating electrical machine MG2 receives an engine reaction force. This is an operating point at which the rotation speed of the second rotating electrical machine MG2 becomes 0 when reverse traveling in the HV-2 mode as described above. That is, another mechanical point is generated on the reverse side, in other words, in the negative gear ratio region.
- the rotation speeds of the two planetary gear mechanisms 10 and 20 are shared only by the output rotation element. In other parts, individual rotation speeds can be selected. Thereby, since the rotation speed of motor
- the hybrid vehicle drive device 1-1 has an EV-2 mode that can be driven by the two rotating electric machines MG1 and MG2. Thereby, it is possible to generate (or regenerate) the torque by sharing one or both of the first rotating electrical machine MG1 and the second rotating electrical machine MG2. Therefore, it is possible to operate at an efficient operating point, and there is a possibility that restrictions such as torque limitation due to heat can be relaxed.
- the hybrid vehicle drive device 1-1 can configure the output shaft at the outermost diameter, it can be easily applied to the FF structure in which a multi-axis configuration is essential.
- FIG. 7 is a skeleton diagram of the vehicle according to the first modification.
- the difference from the hybrid vehicle drive device 1-1 (FIG. 1) of the first embodiment is the arrangement of the components in the axial direction.
- the output gear 7, the first planetary gear mechanism 10, the clutch 3, the second planetary gear mechanism 20, and the first rotating electrical machine are arranged in order from the engine 1 side on the same axis as the rotation shaft 2 of the engine 1.
- MG1, the second rotating electrical machine MG2, and the brake 4 are arranged.
- the connection relationship among the engine 1, the first rotating electrical machine MG1 and the second rotating electrical machine MG2 and the rotating elements of the planetary gear mechanisms 10 and 20 is the same as that in the first embodiment.
- electrical system parts such as rotating electricity MG1 and MG2 and mechanical system parts such as the planetary gear mechanisms 10 and 20 and the clutch 3 can be arranged together.
- electrical parts and mechanical parts can be assembled in different cases in different factories. Therefore, the space and weight of parts to be transported can be reduced.
- inspection and initial setting after each assembly can be performed separately at the component stage.
- FIG. 8 is a skeleton diagram of a vehicle according to a second modification of the first embodiment.
- the hybrid vehicle drive device 1-3 according to the present modification differs from the vehicle 100 of the first embodiment in that the rotation element connected to the brake 4 and the output rotation element are different in the second planetary gear mechanism 20. It is the point that was replaced.
- the output rotation element is the second ring gear 23, and the rotation element connected to the brake 4 is the second sun gear 21.
- the second ring gear 23 is connected to the first carrier 14 and rotates integrally with the first carrier 14.
- the second sun gear 21 is connected to the rotating shaft 5 and rotates integrally with the rotating shaft 5. That is, the second sun gear 21 is connected to the first sun gear 11 and the engine 1 via the rotating shaft 5 and the clutch 3.
- the rotating element connected to the engine 1 is the first sun gear 11, and the rotating element connected to the first rotating electrical machine MG1 is the first sun gear 11.
- the rotating element that is the ring gear 13 and connected to the second rotating electrical machine MG ⁇ b> 2 is the second carrier 24.
- the output rotation elements are the first carrier 14 and the second ring gear 23, and the brake 4 restricts the rotation of the second sun gear 21.
- FIG. 9 is a collinear diagram of the four-element mode of the hybrid vehicle drive device 1-3 according to this modification. Similar to the hybrid vehicle drive device 1-1 of the first embodiment, the arrangement order of the rotating elements in the collinear diagram of the four-element mode is the rotating element connected to the first rotating electrical machine MG1, the output rotating element, The rotating elements connected to the second rotating electrical machine MG2 and the rotating elements connected to the engine 1 are in this order. Therefore, the hybrid vehicle drive apparatus 1-3 according to the present modification has the same effects as the hybrid vehicle drive apparatus 1-1 according to the first embodiment and the hybrid vehicle drive apparatus 1-2 according to the first modification. Can be played.
- FIG. 10 is a skeleton diagram of a vehicle according to a third modification of the first embodiment.
- the hybrid vehicle drive device 1-4 according to the present modification differs from the hybrid vehicle drive device 1-3 according to the second modification in the arrangement of the components in the axial direction.
- the output gear 7, the first planetary gear mechanism 10, the clutch 3, the second planetary gear mechanism 20, and the first rotating electrical machine are arranged on the same axis as the rotation shaft 2 of the engine 1 in this order from the engine 1 side.
- MG1, the second rotating electrical machine MG2, and the brake 4 are arranged.
- the connection relationship among the engine 1, the first rotating electrical machine MG1 and the second rotating electrical machine MG2 and the rotating elements of the planetary gear mechanisms 10 and 20 is the same as in the second modified example.
- electrical system parts such as rotating electricity MG1 and MG2 and mechanical system parts such as the planetary gear mechanisms 10 and 20 and the clutch 3 can be arranged together. .
- FIG. 11 is a skeleton diagram of the vehicle according to the second embodiment
- FIG. 12 is a collinear diagram of the four-element mode of the hybrid vehicle drive device according to the present embodiment.
- the hybrid vehicle drive device 2-1 of the present embodiment differs from the hybrid vehicle drive devices 1-1, 1-2, 1-3, and 1-4 of the first embodiment and each modified example in four points. It is the arrangement order of each rotation element in the alignment chart of element mode. As shown in FIG. 12, the arrangement order of the rotating elements in the collinear diagram of the four-element mode is the rotating elements connected to the first rotating electrical machine MG1, the rotating elements connected to the engine 1, and the second rotating electrical machine MG2. Rotation element and output rotation element in this order. Thereby, as will be described later, the mechanical point can be configured on the high gear side with respect to the constant speed.
- the first carrier 14 is connected to the rotating shaft 2 of the engine 1. That is, the first carrier 14 corresponds to the rotating element connected to the engine 1.
- the first ring gear 13 is connected to the rotating shaft 31 of the first rotating electrical machine MG1. That is, the first ring gear 13 corresponds to a rotating element connected to the first rotating electrical machine MG1.
- the second carrier 24 is connected to the rotating shaft 32 of the second rotating electrical machine MG2. That is, the second carrier 24 corresponds to the rotating element connected to the second rotating electrical machine MG2.
- the first sun gear 11 and the second sun gear 21 are connected to the output shaft 8.
- the output shaft 8 is coaxial with the rotation shaft 2 of the engine 1 and is disposed on an extension line of the rotation shaft 2.
- the hybrid vehicle drive device 2-1 can configure the output shaft at the central axis, it is easy to apply to an FR structure that requires a single-axis configuration. In other words, the hybrid vehicle drive device 2-1 is applicable to FF vehicles and FR vehicles.
- a first rotating electrical machine MG1, a first planetary gear mechanism 10, a clutch 33, a second planetary gear mechanism 20, a brake 34, and a second rotating electrical machine MG2 are arranged on the same axis as the rotation shaft 2 of the engine 1 in this order from the engine 1 side. Is arranged.
- the output shaft 8 is connected to driving wheels of the vehicle 100 via a speed reduction mechanism or the like. That is, the first sun gear 11 and the second sun gear 21 are gears arranged on the output shafts of the first planetary gear mechanism 10 and the second planetary gear mechanism 20, and are the engine 1, the first rotating electrical machine MG1, and the second rotating electrical machine. This corresponds to an output rotation element that outputs the power of MG2 to the drive wheels.
- the second ring gear 23 is connected to the first carrier 14 and the engine 1 via the clutch 33.
- the clutch 33 can be the same as the clutch 3 of the first embodiment.
- the brake 34 restricts the rotation of the second ring gear 23.
- the brake 34 can be the same as the brake 4 of the first embodiment.
- the brake 34 is disposed on the radially outer side with respect to the second ring gear 23.
- An engagement portion 23 a is provided on the outer periphery of the second ring gear 23. The brake 34 regulates the rotation of the second ring gear 23 by engaging with the engaging portion 23a.
- the ECU 60 has a function of controlling the engine 1, the first rotating electrical machine MG1, the second rotating electrical machine MG2, the clutch 33, and the brake 34, similarly to the ECU 50 of the first embodiment.
- the engagement table of the hybrid vehicle drive device 2-1 of the present embodiment is the same as the engagement table of the hybrid vehicle drive device 1-1 of the first embodiment. Accordingly, the hybrid vehicle drive device 2-1 can execute the EV-1 mode, the EV-2 mode, the HV-1 mode, and the HV-2 mode.
- FIG. 13 is a collinear diagram at the time of advance in the HV-2 mode of the second embodiment
- FIG. 14 is a diagram showing the theoretical transmission efficiency of the hybrid vehicle drive device 2-1 according to the second embodiment
- FIG. FIG. 10 is a nomographic chart at the time of reverse running in the HV-2 mode of the second embodiment.
- the ECU 60 causes the first rotating electrical machine MG1 to function as a reaction force receiver of the engine 1 when moving forward in the HV-2 mode.
- the first rotating electrical machine MG1 can rotate positively and generate negative torque to receive the reaction force of the engine 1 and output power from the output rotating element to the output shaft 8.
- a solid line is an example of a collinear diagram in a cruise mode such as during steady running or low load running.
- the broken line is an example of a collinear diagram during acceleration or during high-load traveling.
- the gear ratio ⁇ 2 is a gear ratio at which the rotation speed of the first rotating electrical machine MG1 (first ring gear 13) is zero.
- the speed ratio ⁇ 2 is a speed ratio on the overdrive side, that is, a speed ratio smaller than the constant speed. That is, in the hybrid vehicle drive device 2-1, the mechanical point when receiving the reaction force by the first rotating electrical machine MG1 in the four-element mode can be configured on the high gear side, and thus a hybrid system excellent in efficiency at high speed is configured. be able to.
- the ECU 60 causes the second rotating electrical machine MG2 to function as a reaction force receiver of the engine 1 during reverse running in the HV-2 mode.
- the second rotating electrical machine MG2 outputs a reaction torque with respect to the engine torque, and causes the output shaft 8 to output power. At this time, the second rotating electrical machine MG2 outputs a negative torque. If the second rotating electrical machine MG2 is controlled to perform normal rotation in the reverse running, the second rotating electrical machine MG2 can generate reaction force torque by power generation.
- the first rotating electrical machine MG1 can generate assist torque, perform power generation, and can idle without powering or power generation.
- the ECU 60 can determine the operation of the first rotating electrical machine MG1 during reverse traveling based on the state of charge SOC of the battery.
- the hybrid vehicle drive device 2-1 uses the second rotating electrical machine MG 2 as a reaction force receiver to generate a positive rotation positive torque of the engine 1. It can be converted into negative rotation negative torque and output from the output rotation element. Therefore, the driving force during reverse traveling can be increased.
- Another mechanical point in the EV-2 mode is an operating point at which the rotation speed of the second rotating electrical machine MG2 becomes 0 when reverse running is performed in the HV-2 mode, as in the first embodiment. That is, another mechanical point is generated on the reverse side, in other words, in the negative gear ratio region.
- FIG. 16 is a skeleton diagram of a vehicle according to a first modification of the second embodiment.
- the hybrid vehicle drive device 2-2 of the present modification differs from the hybrid vehicle drive device 2-1 of the second embodiment in the arrangement of the components in the axial direction.
- the first planetary gear mechanism 10, the clutch 33, the second planetary gear mechanism 20, the first rotating electrical machine MG ⁇ b> 1, and the brake 34 are arranged in order from the engine 1 side on the same axis as the rotational shaft 2 of the engine 1.
- the second rotating electrical machine MG2 is arranged.
- the connection relationship between the engine 1, the first rotating electrical machine MG1 and the second rotating electrical machine MG2, and the planetary gear mechanisms 10 and 20 is the same as that in the second embodiment.
- FIG. 17 is a skeleton diagram of a vehicle according to a second modification of the second embodiment.
- the hybrid vehicle drive device 2-3 according to this modification differs from the hybrid vehicle drive device 2-1 of the second embodiment described above in that in the second planetary gear mechanism 20, the rotating element connected to the brake 34 is provided. And the output rotation element are interchanged.
- the output rotation element is the second ring gear 23, and the rotation element connected to the brake 34 is the second sun gear 21.
- the second ring gear 23 is connected to the first sun gear 11 via the connection member 35.
- the connection member 35 is disposed on the radially outer side of the second planetary gear mechanism 20.
- An output gear 7 is disposed on the outer periphery of the connection member 35.
- the second sun gear 21 is connected to the first carrier 14 and the engine 1 via the rotary shaft 5 and the clutch 33.
- the brake 34 regulates the rotation of the second sun gear 21. Specifically, the brake 34 regulates the rotation of the second sun gear 21 by engaging with the engaging portion 5 a of the rotating shaft 5.
- the rotating element connected to the engine 1 is the first carrier 14, and the rotating element connected to the first rotating electrical machine MG1 is the first carrier 14.
- the rotating element that is the ring gear 13 and connected to the second rotating electrical machine MG ⁇ b> 2 is the second carrier 24.
- the output rotation elements are the first sun gear 11 and the second ring gear 23, and the brake 34 restricts the rotation of the second sun gear 21.
- FIG. 18 is a collinear diagram of the four-element mode of the hybrid vehicle drive device 2-3 according to the second modification of the second embodiment.
- the order of arrangement of the rotating elements in the collinear diagram of the four-element mode is the rotating elements connected to the first rotating electrical machine MG 1 and the engine 1.
- the rotating elements are connected, the rotating elements connected to the second rotating electrical machine MG2, and the output rotating elements.
- the hybrid vehicle drive device 2-3 according to the present modification is the hybrid vehicle drive device 2-1 of the second embodiment and the hybrid vehicle drive device 2- of the first modification of the second embodiment. The effect similar to 2 can be produced.
- FIG. 19 is a skeleton diagram of a vehicle according to a third modification of the second embodiment.
- the hybrid vehicle drive device 2-4 according to this modification is different from the hybrid vehicle drive device 2-3 of the second modification of the second embodiment in the arrangement of the components in the axial direction.
- the first planetary gear mechanism 10, the clutch 33, the second planetary gear mechanism 20, the first rotating electrical machine MG1, the output gear 7, and the second rotation are arranged on the same axis as the rotation shaft 2 of the engine 1 in this order from the side closer to the engine 1.
- An electric machine MG2 and a brake 34 are arranged.
- the output gear 7 is connected to the second ring gear 23 via the connection member 36.
- the connecting member 36 has a cylindrical shape, is coaxial with the rotating shaft 5, and is disposed on the radially outer side with respect to the rotating shaft 32 of the second rotating electrical machine MG ⁇ b> 2.
- the rotating shaft 31 of the first rotating electrical machine MG1 is disposed on the radially outer side with respect to the connection member 36.
- a one-way clutch may be provided for the engaging portion 5a.
- the one-way clutch allows positive rotation of the engaging portion 5a and restricts negative rotation. This makes it possible to start without engaging the brake 4 when starting in the EV-1 mode.
- the vehicle 100 can be started by transmitting power from the second sun gear 21 to the output gear 7.
- the electric oil pump Since it is not necessary to engage the brake 4 when starting in the EV-1 mode, the electric oil pump is not required when the vehicle is stopped, etc., and the control becomes simple and the energy required for driving the electric oil pump can be reduced. .
- the planetary gear mechanisms 10 and 20 of the above-described embodiments and modifications are of a single pinion type, the number of meshing gears is reduced, which may be advantageous in terms of loss.
- the planetary gear mechanisms 10 and 20 are not limited to a single pinion type, and may be appropriately a double pinion type.
- the rotating element connected to the second rotating electrical machine MG2 is located between the rotating element connected to the engine 1 and the output rotating element.
- a rotating element connected to the first rotating electrical machine MG1 may be located.
- the switching device for switching the mode of the differential mechanism is the clutch 3 and the brake 4, but is not limited thereto. Other devices may be used as the switching device.
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Abstract
Description
図1から図6を参照して、第1実施形態について説明する。本実施形態は、ハイブリッド車両用駆動装置に関する。図1は、本発明の第1実施形態に係る車両のスケルトン図、図2は、第1実施形態に係るハイブリッド車両用駆動装置の係合表を示す図である。
ECU50は、EV-1モードでは、ブレーキ4を係合し、かつクラッチ3を開放する。ブレーキ4が係合することで、第二リングギア23の回転が規制される。従って、第二回転電機MG2の出力トルク(以下、「MG2トルク」とも記載する。)に対して第二リングギア23が反力受けとなり、第二サンギア21から出力ギア7に動力を出力させることができる。つまり、EV-1モードでは、第二回転電機MG2を動力源として車両100を走行させることができる。EV-1モードでは、第二回転電機MG2の回転方向を切り替えることにより、車両100の前進・後進ともに可能である。
ECU50は、EV-2モードでは、ブレーキ4およびクラッチ3を共に係合する。ブレーキ4が係合することで、第二リングギア23の回転が規制される。更に、クラッチ3が係合することで、第一サンギア11およびエンジン1と第二リングギア23とが接続される。従って、EV-2モードでは、第二リングギア23、第一サンギア11およびエンジン1の回転が規制される。
ECU50は、HV-1モードでは、ブレーキ4を係合し、かつクラッチ3を開放する。ブレーキ4が係合することで、第二リングギア23の回転が規制される。従って、第二リングギア23は、MG2トルクに対する反力受けとなり、第二サンギア21から出力ギア7に動力を出力させることができる。
ECU50は、HV-2モードでは、ブレーキ4を開放し、かつクラッチ3を係合する。クラッチ3が係合することで、第一遊星歯車機構10および第二遊星歯車機構20は、4要素モードの差動機構として機能する。図4は、HV-2モードのリバース走行時の共線図、図5は、HV-2モードの前進時の共線図である。
第1実施形態の第1変形例について説明する。図7は、第1変形例に係る車両のスケルトン図である。本変形例に係るハイブリッド車両用駆動装置1-2において、上記第1実施形態のハイブリッド車両用駆動装置1-1(図1)と異なる点は、各構成要素の軸方向の配置である。
第1実施形態の第2変形例について説明する。図8は、第1実施形態の第2変形例に係る車両のスケルトン図である。本変形例に係るハイブリッド車両用駆動装置1-3において、上記第1実施形態の車両100と異なる点は、第二遊星歯車機構20において、ブレーキ4に接続された回転要素と出力回転要素とが入れ替わった点である。
第1実施形態の第3変形例について説明する。図10は、第1実施形態の第3変形例に係る車両のスケルトン図である。本変形例に係るハイブリッド車両用駆動装置1-4において、上記第2変形例のハイブリッド車両用駆動装置1-3と異なる点は、各構成要素の軸方向の配置である。
図11から図15を参照して、第2実施形態について説明する。第2実施形態については、上記実施形態で説明したものと同様の機能を有する構成要素には同一の符号を付して重複する説明は省略する。図11は、第2実施形態に係る車両のスケルトン図、図12は、本実施形態に係るハイブリッド車両用駆動装置の4要素モードの共線図である。
第2実施形態の第1変形例について説明する。図16は、第2実施形態の第1変形例に係る車両のスケルトン図である。本変形例のハイブリッド車両用駆動装置2-2において、上記第2実施形態のハイブリッド車両用駆動装置2-1と異なる点は、各構成要素の軸方向の配置である。
第2実施形態の第2変形例について説明する。図17は、第2実施形態の第2変形例に係る車両のスケルトン図である。本変形例に係るハイブリッド車両用駆動装置2-3において、上記第2実施形態のハイブリッド車両用駆動装置2-1と異なる点は、第二遊星歯車機構20において、ブレーキ34に接続された回転要素と出力回転要素とが入れ替わった点である。
第2実施形態の第3変形例について説明する。図19は、第2実施形態の第3変形例に係る車両のスケルトン図である。本変形例に係るハイブリッド車両用駆動装置2-4において、上記第2実施形態の第2変形例のハイブリッド車両用駆動装置2-3と異なる点は、各構成要素の軸方向の配置である。
上記各実施形態のその他の変形例について説明する。上記各実施形態および各変形例のハイブリッド車両用駆動装置1-1,1-2,1-3,1-4,2-1,2-2,2-3,2-4において、ブレーキ4,34と並列にワンウェイクラッチを設けるようにしてもよい。
1 エンジン(機関)
3,33 クラッチ
4,34 ブレーキ
10 第一遊星歯車機構
11 第一サンギア(S1)
13 第一リングギア(R1)
14 第一キャリア(C1)
20 第二遊星歯車機構
21 第二サンギア(S2)
23 第二リングギア(R2)
24 第二キャリア(C2)
50,60 ECU
100 車両
MG1 第一回転電機
MG2 第二回転電機
Claims (7)
- 機関と、第一回転電機と、第二回転電機と、第一差動機構と、第二差動機構と、切替装置とを備え、
前記第一差動機構と前記第二差動機構とは出力回転要素を介して接続され、
前記機関、前記第一回転電機および前記第二回転電機は、前記第一差動機構および前記第二差動機構の回転要素のうち互いに異なる回転要素にそれぞれ接続され、
前記切替装置は、前記第一差動機構と前記第二差動機構とが互いに独立して差動回転する独立モードと、前記第一差動機構の一の回転要素と前記第二差動機構の一の回転要素とが連結された4要素モードとを切り替え、
前記4要素モードは、前記機関に接続された回転要素と、前記第一回転電機に接続された回転要素と、前記第二回転電機に接続された回転要素と、前記出力回転要素とが差動回転し、
前記4要素モードにおける共線図において、前記機関に接続された回転要素と前記出力回転要素との間に、前記第一回転電機に接続された回転要素あるいは前記第二回転電機に接続された回転要素のいずれかが位置する
ことを特徴とするハイブリッド車両用駆動装置。 - 前記4要素モードにおける共線図において、前記回転要素の並び順は、前記第一回転電機に接続された回転要素、前記出力回転要素、前記第二回転電機に接続された回転要素、前記機関に接続された回転要素の順である
請求項1に記載のハイブリッド車両用駆動装置。 - 前記4要素モードにおける共線図において、前記回転要素の並び順は、前記第一回転電機に接続された回転要素、前記機関に接続された回転要素、前記第二回転電機に接続された回転要素、前記出力回転要素の順である
請求項1に記載のハイブリッド車両用駆動装置。 - 前記第一差動機構としての第一遊星歯車機構と、
前記第二差動機構としての第二遊星歯車機構と、
前記切替装置としてのクラッチと、
ブレーキとを備え、
前記機関に接続された回転要素は、前記第一遊星歯車機構のサンギアであり、
前記第一回転電機に接続された回転要素は、前記第一遊星歯車機構のリングギアであり、
前記第二回転電機に接続された回転要素は、前記第二遊星歯車機構のキャリアであり、
前記出力回転要素は、前記第一遊星歯車機構のキャリアおよび前記第二遊星歯車機構のサンギアであり、
前記第二遊星歯車機構のリングギアは、前記クラッチを介して前記第一遊星歯車機構のサンギアおよび前記機関と接続されており、
前記ブレーキは、前記第二遊星歯車機構のリングギアの回転を規制する
請求項1または2に記載のハイブリッド車両用駆動装置。 - 前記第一差動機構としての第一遊星歯車機構と、
前記第二差動機構としての第二遊星歯車機構と、
前記切替装置としてのクラッチと、
ブレーキとを備え、
前記機関に接続された回転要素は、前記第一遊星歯車機構のサンギアであり、
前記第一回転電機に接続された回転要素は、前記第一遊星歯車機構のリングギアであり、
前記第二回転電機に接続された回転要素は、前記第二遊星歯車機構のキャリアであり、
前記出力回転要素は、前記第一回転電機のキャリアおよび前記第二遊星歯車機構のリングギアであり、
前記第二遊星歯車機構のサンギアは、前記クラッチを介して前記第一遊星歯車機構のサンギアおよび前記機関と接続されており、
前記ブレーキは、前記第二遊星歯車機構のサンギアの回転を規制する
請求項1または2に記載のハイブリッド車両用駆動装置。 - 前記第一差動機構としての第一遊星歯車機構と、
前記第二差動機構としての第二遊星歯車機構と、
前記切替装置としてのクラッチと、
ブレーキとを備え、
前記機関に接続された回転要素は、前記第一遊星歯車機構のキャリアであり、
前記第一回転電機に接続された回転要素は、前記第一遊星歯車機構のリングギアであり、
前記第二回転電機に接続された回転要素は、前記第二遊星歯車機構のキャリアであり、
前記出力回転要素は、前記第一遊星歯車機構のサンギアおよび前記第二遊星歯車機構のサンギアであり、
前記第二遊星歯車機構のリングギアは、前記クラッチを介して前記第一遊星歯車機構のキャリアおよび前記機関と接続されており、
前記ブレーキは、前記第二遊星歯車機構のリングギアの回転を規制する
請求項1または3に記載のハイブリッド車両用駆動装置。 - 前記第一差動機構としての第一遊星歯車機構と、
前記第二差動機構としての第二遊星歯車機構と、
前記切替装置としてのクラッチと、
ブレーキとを備え、
前記機関に接続された回転要素は、前記第一遊星歯車機構のキャリアであり、
前記第一回転電機に接続された回転要素は、前記第一遊星歯車機構のリングギアであり、
前記第二回転電機に接続された回転要素は、前記第二遊星歯車機構のキャリアであり、
前記出力回転要素は、前記第一遊星歯車機構のサンギアおよび前記第二遊星歯車機構のリングギアであり、
前記第二遊星歯車機構のサンギアは、前記クラッチを介して前記第一遊星歯車機構のキャリアおよび前記機関と接続されており、
前記ブレーキは、前記第二遊星歯車機構のサンギアの回転を規制する
請求項1または3に記載のハイブリッド車両用駆動装置。
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US14/388,630 US9376009B2 (en) | 2012-03-28 | 2012-03-28 | Driving device for hybrid vehicle |
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CN108238040A (zh) * | 2016-12-27 | 2018-07-03 | 丰田自动车株式会社 | 混合动力车辆的控制装置 |
CN108656937A (zh) * | 2018-05-07 | 2018-10-16 | 曾浩文 | 一种混合电驱动装置 |
JP2019108073A (ja) * | 2017-12-20 | 2019-07-04 | トヨタ自動車株式会社 | ハイブリッド車両の駆動力制御装置 |
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JP5794384B2 (ja) | 2015-10-14 |
US9376009B2 (en) | 2016-06-28 |
DE112012006122B4 (de) | 2024-04-18 |
DE112012006122T5 (de) | 2014-12-18 |
JPWO2013145193A1 (ja) | 2015-08-03 |
US20150024895A1 (en) | 2015-01-22 |
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