WO2021085611A1 - Vehicle drive device - Google Patents

Vehicle drive device Download PDF

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Publication number
WO2021085611A1
WO2021085611A1 PCT/JP2020/040860 JP2020040860W WO2021085611A1 WO 2021085611 A1 WO2021085611 A1 WO 2021085611A1 JP 2020040860 W JP2020040860 W JP 2020040860W WO 2021085611 A1 WO2021085611 A1 WO 2021085611A1
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WO
WIPO (PCT)
Prior art keywords
gear mechanism
electric machine
rotary electric
axis
differential gear
Prior art date
Application number
PCT/JP2020/040860
Other languages
French (fr)
Japanese (ja)
Inventor
佐田夏木
鈴木速人
城戸祥孝
岸本一真
上田琢也
Original Assignee
アイシン・エィ・ダブリュ株式会社
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Application filed by アイシン・エィ・ダブリュ株式会社 filed Critical アイシン・エィ・ダブリュ株式会社
Publication of WO2021085611A1 publication Critical patent/WO2021085611A1/en

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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
    • B60K6/40—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 assembly or relative disposition of components
    • 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
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • 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
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • 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

Definitions

  • the present invention relates to a vehicle drive device.
  • Vehicle drive devices are used.
  • An example of such a vehicle drive device is disclosed in Japanese Patent Application Laid-Open No. 2017-71328 (Patent Document 1).
  • the differential gear mechanism for distribution (planetary gear mechanism 61) has three rotating elements, and the first rotating electric motor (first electric motor 41) is driven and connected to the first rotating element (sun gear S) to perform the second rotation.
  • An input member (input shaft connected to the crank shaft of the engine) is driven and connected to the element (carrier C), and the second rotating electric motor (second motor 44) and the output differential gear are connected to the third rotating element (ring gear R).
  • the mechanism (differential mechanism) is driven and connected.
  • the input member, the differential gear mechanism for distribution, and the first rotary electric machine are arranged coaxially, and the second rotary electric machine and the differential gear mechanism for output are arranged on a separate axis from these. Have been placed.
  • the distribution differential gear mechanism, the second rotary electric machine, and the output differential gear mechanism are drive-connected to each other via a counter gear mechanism (counter shaft 43).
  • the position where the second rotary electric machine can be arranged is limited to a part of the area near the counter gear mechanism. More specifically, the gear that rotates integrally with the rotor of the second rotary electric machine meshes with the driven gear of the counter gear mechanism, and the stator of the second rotary electric machine is attached to the stator of the first rotary electric machine and a pair of output members (axles).
  • the placement position of the second rotary electric machine is limited to a position where it does not interfere. Therefore, restrictions on the outer shape of the drive device for a vehicle are also increased, and as a result, the mountability of the drive device on the vehicle (mountability on the vehicle) may be deteriorated depending on the structure on the vehicle side.
  • the vehicle drive device is Input members that are driven and connected to the internal combustion engine With the 1st rotary electric machine 2nd rotary electric machine and A pair of output members that are driven and connected to the wheels, respectively.
  • An output differential gear mechanism that distributes the input rotation to the pair of output members, The first rotating element that is driven and connected to the first rotating electric machine, the second rotating element that is driven and connected to the input member, and the third rotation that is driven and connected to the second rotating electric machine and the output differential gear mechanism.
  • the input member is arranged coaxially with the distribution differential gear mechanism.
  • the first rotary electric machine is arranged on a shaft separate from the distribution differential gear mechanism.
  • the second rotary electric machine and the output differential gear mechanism are arranged on separate axes from the first rotary electric machine and the distribution differential gear mechanism, respectively.
  • the first rotary electric machine is arranged on a separate axis with respect to the coaxially arranged input member and the differential gear mechanism for distribution, so that the degree of freedom in arrangement of the first rotary electric machine is increased.
  • restrictions on the arrangement position of the second rotating electric machine are relaxed, and the degree of freedom in the arrangement of the second rotating electric machine is increased. Therefore, the degree of freedom in arranging each component constituting the vehicle drive device, including the arrangement of the output differential gear mechanism, is increased. Therefore, restrictions on the outer shape of the vehicle drive device can be relaxed, and a vehicle drive device having excellent vehicle mountability can be realized.
  • Skeleton diagram of the vehicle drive device of the first embodiment Layout diagram seen from the axial direction of the vehicle drive unit
  • the vehicle drive device 1 of the present embodiment is a drive device for a hybrid vehicle including both an internal combustion engine EG and rotary electric machines 4 and 5 as a drive force source for the wheels W.
  • the vehicle drive device 1 is configured as a drive device for a so-called two-motor split type hybrid vehicle. Further, the vehicle drive device 1 according to the present embodiment is configured as a drive device for an FF (Front Engine Front Drive) vehicle.
  • FF Front Engine Front Drive
  • the vehicle drive device 1 includes an input member 2, a distribution differential gear mechanism 3, a first rotary electric machine 4, a second rotary electric machine 5, a counter gear mechanism 6, and an output. It includes a differential gear mechanism 7 and an output member 8. These are housed in a case (driving device case) 9. A part of the input member 2 and a part of the output member 8 are exposed to the outside of the case 9.
  • the input member 2 and the distribution differential gear mechanism 3 are arranged on the first axis X1 common to them.
  • the first rotary electric machine 4 is arranged on the second axis X2, which is different from the first axis X1.
  • the second rotary electric machine 5 is arranged on a third axis X3, which is different from the first axis X1 and the second axis X2.
  • the counter gear mechanism 6 is arranged on a fourth axis X4, which is different from the first axis X1, the second axis X2, and the third axis X3.
  • the output differential gear mechanism 7 is arranged on the fifth axis X5, which is different from the first axis X1, the second axis X2, the third axis X3, and the fourth axis X4.
  • the first axis X1, the second axis X2, the third axis X3, the fourth axis X4, and the fifth axis X5 are arranged in parallel with each other.
  • the direction parallel to each of these axes X1 to X5 is referred to as "axial direction L".
  • the side that is one side in the axial direction L and in which the internal combustion engine EG is arranged is referred to as the first side L1 in the axial direction, and the other side in the axial direction L that is the internal combustion engine EG side in this example.
  • the opposite side is called the second side L2 in the axial direction.
  • the input member 2 is driven and connected to the internal combustion engine EG.
  • the internal combustion engine EG is a prime mover (gasoline engine, diesel engine, etc.) that is driven by combustion of fuel inside the engine to extract power.
  • the input member 2 is drive-connected to the output shaft of the internal combustion engine EG (internal combustion engine output shaft such as a crankshaft).
  • the input member 2 may be driven and connected to the internal combustion engine EG via a damper, a clutch, or the like.
  • driving connection means a state in which two rotating elements are connected so as to be able to transmit a driving force (synonymous with torque).
  • This concept includes a state in which two rotating elements are connected so as to rotate integrally, and a state in which two rotating elements are connected so as to be able to transmit a driving force via one or more transmission members.
  • Such transmission members include various members (shafts, gear mechanisms, belts, etc.) that transmit rotation at the same speed or at different speeds, and are engaging devices (friction) that selectively transmit rotation and driving force. Engagement device, meshing type engagement device, etc.) may be included.
  • the input member 2 is drive-connected to the distribution differential gear mechanism 3.
  • the distribution differential gear mechanism 3 has three rotating elements, that is, a first rotating element 31, a second rotating element 32, and a third rotating element 33.
  • the distribution differential gear mechanism 3 is a planetary gear mechanism having a sun gear S as a first rotating element 31, a carrier C as a second rotating element 32, and a ring gear R as a third rotating element 33. It is configured.
  • the distribution differential gear mechanism 3 of the present embodiment is a single pinion type planetary gear mechanism, and the three rotating elements 31 to 33 are the first rotating element 31 (sun gear S) and the second rotating element in the order of rotation speed. 32 (carrier C) and the third rotating element 33 (ring gear R).
  • the “order of rotation speed” is the order of rotation speed of each rotation element 31 to 33 in the rotation state.
  • the rotation speed of each of the rotating elements 31 to 33 changes depending on the rotational state of the distribution differential gear mechanism 3, but the order of the high and low rotation speeds of the rotating elements 31 to 33 is the order of the distribution differential gear mechanism 3. Since it is determined by the structure, it is constant.
  • the order of the rotational speeds of the rotating elements 31 to 33 is the same as the arrangement order of the rotating elements 31 to 33 in the speed diagram (also referred to as a collinear diagram) well known to those skilled in the art.
  • the first rotating element 31 (sun gear S) is connected so as to rotate integrally with the connecting gear 36 via a connecting shaft 35 arranged on the first shaft X1.
  • the connecting gear 36 is arranged on the second side L2 in the axial direction with respect to the first rotating element 31 (sun gear S).
  • the connecting gear 36 and the first rotating element 31 (sun gear S) are drawn to have the same diameter, but the connecting gear 36 is formed to have a larger diameter than the first rotating element 31 (sun gear S). It may be formed into a small diameter.
  • the first rotating element 31 (sun gear S) is driven and connected to the first rotating electric machine 4 via the connecting gear 36.
  • the second rotating element 32 (carrier C) rotatably supports a plurality of pinion gears that mesh with both the first rotating element 31 (sun gear S) and the third rotating element 33 (ring gear R).
  • the second rotating element 32 (carrier C) is connected to the input member 2 so as to rotate integrally.
  • the third rotating element 33 (ring gear R) is formed on the inner peripheral surface of the gear forming member 38 formed in a cylindrical shape.
  • An outer peripheral gear 39 is formed on the outer peripheral surface of the gear forming member 38.
  • the third rotating element 33 (ring gear R) and the outer peripheral gear 39 are connected so as to rotate integrally.
  • the third rotating element 33 (ring gear R) and the outer peripheral gear 39 are arranged so as to overlap each other in the radial direction.
  • "overlapping in a certain direction” means that the virtual straight line is 2 when the virtual straight line parallel to the line-of-sight direction is moved in each direction orthogonal to the virtual straight line.
  • the third rotating element 33 (ring gear R) is drive-connected to the second rotary electric machine 5 via the outer peripheral gear 39, and further drive-connected to the output differential gear mechanism 7 via the counter gear mechanism 6. Has been done.
  • the first rotary electric machine 4 has a first stator 41 fixed to the case 9 and a first rotor 42 rotatably supported inside the first stator 41 in the radial direction.
  • the first rotor 42 is connected so as to rotate integrally with the first rotor shaft 43.
  • a first output gear 44 is formed at the end of the first rotor shaft 43 on the first side L1 in the axial direction.
  • the first output gear 44 meshes with the connecting gear 36.
  • the first rotor 42 is driven and connected to the first rotating element 31 (sun gear S) of the distribution differential gear mechanism 3 via the first output gear 44 and the connecting gear 36 that mesh with each other. ..
  • the first output gear 44 corresponds to the "first gear”
  • the connecting gear 36 corresponds to the "second gear”.
  • the first rotary electric machine 4 can function as a motor (electric motor) that receives power supply and generates power, and as a generator (generator) that receives power supply and generates power. Is.
  • the first rotary electric machine 4 is electrically connected to a power storage device (battery, capacitor, etc .; not shown).
  • the first rotary electric machine 4 functions as a generator that generates electric power mainly by the torque of the input member 2 (internal combustion engine EG) input via the distribution differential gear mechanism 3.
  • the first rotary electric machine 4 may function as a motor when the vehicle is traveling at high speed or when the internal combustion engine EG is started.
  • the second rotary electric machine 5 has a second stator 51 fixed to the case 9 and a second rotor 52 rotatably supported inside the second stator 51 in the radial direction.
  • the second rotor 52 is connected to the second rotor shaft 53 so as to rotate integrally with the second rotor shaft 53.
  • a second output gear 54 is formed at the end of the second rotor shaft 53 on the first side L1 in the axial direction.
  • the second output gear 54 meshes with the outer peripheral gear 39.
  • the second rotor 52 is drive-connected to the output differential gear mechanism 7 via the second output gear 54 and the outer peripheral gear 39 that mesh with each other, and further via the counter gear mechanism 6.
  • the second output gear 54 corresponds to the "third gear”
  • the outer peripheral gear 39 corresponds to the "fourth gear”.
  • the second rotary electric machine 5 can also function as a motor and a generator, and is electrically connected to a power storage device (not shown).
  • the second rotary electric machine 5 mainly functions as a motor (assist motor) that assists a driving force for traveling the vehicle.
  • the second rotary electric machine 5 may function as a generator.
  • the first rotary electric machine 4 and the second rotary electric machine 5 are arranged on different axes, and further, each of the first rotary electric machine 4 and the second rotary electric machine 5 has an input member 2 and a difference for distribution. It is arranged on a shaft separate from the moving gear mechanism 3. Therefore, the degree of freedom in arrangement of the first rotary electric machine 4 and the second rotary electric machine 5 is high.
  • the first rotary electric machine 4 and the second rotary electric machine 5 are arranged on the second side L2 in the axial direction with respect to the distribution differential gear mechanism 3. Further, the first rotary electric machine 4 and the second rotary electric machine 5 are arranged so that the arrangement regions of the stators 41 and 51 in the axial direction L overlap each other (the regions are arranged so as to include at least the region of the same axial direction L). Therefore, the first stator 41 of the first rotary electric machine 4 and the second stator 51 of the second rotary electric machine 5 do not overlap in the axial direction (see FIG. 2).
  • the counter gear mechanism 6 is provided in the power transmission path between the distribution differential gear mechanism 3 (specifically, the third rotating element 33) and the output differential gear mechanism 7.
  • the counter gear mechanism 6 is a counter that connects the first counter gear 61, the second counter gear 62 provided at a position different from the first counter gear 61 in the axial direction L, and these two counter gears 61 and 62. It has a shaft 63 and.
  • the second counter gear 62 is arranged on the second side L2 in the axial direction with respect to the first counter gear 61. Further, the second counter gear 62 is formed to have a smaller diameter than the first counter gear 61.
  • the first counter gear 61 meshes with the outer peripheral gear 39 that rotates integrally with the third rotating element 33 (ring gear R).
  • the second counter gear 62 meshes with the differential input gear 71 of the output differential gear mechanism 7.
  • the counter gear mechanism 6 decelerates the output rotation from the distribution differential gear mechanism 3 (at the same time amplifies the output torque from the distribution differential gear mechanism 3) and transmits the deceleration to the output differential gear mechanism 7. Functions as a mechanism.
  • the output differential gear mechanism 7 has a differential input gear 71, and distributes the rotation input to the differential input gear 71 to a pair of output members 8.
  • the pair of output members 8 are each driven and connected to the wheel W.
  • the output differential gear mechanism 7 transmits the rotation and torque input to the differential input gear 71 from the distribution differential gear mechanism 3 side via the counter gear mechanism 6 to the left and right two output members 8 (that is, the left and right 2). It is distributed and transmitted to one wheel W).
  • the vertical plane including the first axis X1 which is the rotation axis of the input member 2 is defined as the first virtual plane P1
  • the horizontal plane including the first axis X1 is the second virtual plane P2.
  • the virtual plane including the first axis X1 and the fifth axis X5 which is the rotation axis of the output differential gear mechanism 7 is defined as the third virtual plane P3
  • the first axis X1 and the counter gear mechanism are defined as the third virtual plane P3.
  • the virtual plane including the fourth axis X4, which is the center of rotation of 6, is referred to as the fourth virtual plane P4.
  • the arrangement of each axis X1 to X5 and each component in the axial direction in relation to these virtual planes P1 to P4 is as follows.
  • the second axis X2, the fourth axis X4, and the fifth axis X5 are arranged on the same side with respect to the first virtual plane P1.
  • the third axis X3, the second axis X2, the fourth axis X4, and the fifth axis X5 are separately arranged on both sides of the first virtual plane P1.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the arrangement area includes the first virtual plane P1.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis is the horizontal first side H1 (in this example, the vehicle front-rear direction) whose entire surface is one side of the horizontal direction H with respect to the first virtual plane P1.
  • the counter gear mechanism 6 having the fourth axis X4 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all in the horizontal direction H with respect to the first virtual plane P1. It is arranged so as to be located on the second side H2 in the horizontal direction (rear side in the front-rear direction of the vehicle in this example).
  • the second axis X2 and the fifth axis X5 are arranged on the same side (lower side of the vertical direction V in this example) with respect to the second virtual plane P2, and on the opposite side (upper side of the vertical direction V in this example).
  • the third axis X3 and the fourth axis X4 are arranged on the side).
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side in the vertical direction V with respect to the second virtual plane P2.
  • the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the upper side) includes the second virtual plane P2.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis and the counter gear mechanism 6 having the fourth axis X4 as the rotation axis have their arrangement areas (more specifically, each lower arrangement area). It is arranged so as to include the second virtual plane P2.
  • the second axis X2 and the third axis X3 are arranged on the same side with respect to the third virtual plane P3.
  • the second axis X2, the third axis X3, and the fourth axis X4 are separately arranged on both sides of the third virtual plane P3.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that the arrangement area includes the third virtual plane P3.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side with respect to the third virtual plane P3.
  • the counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located on the upper side with respect to the third virtual plane P3.
  • the second axis X2 and the fifth axis X5 are arranged on the same side with respect to the fourth virtual plane P4.
  • the second axis X2, the fifth axis X5, and the third axis X3 are separately arranged on both sides of the fourth virtual plane P4.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are entirely on the lower side with respect to the fourth virtual plane P4. It is arranged so that it is located in.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the lower side) includes the fourth virtual plane P4.
  • the distribution differential gear mechanism 3 can be used while suppressing the overall increase in size of the vehicle drive device 1.
  • the second rotary electric machine 5 can be arranged on the side opposite to the output differential gear mechanism 7.
  • the space above the output differential gear mechanism 7 in the vertical direction V and on the second side H2 in the horizontal direction with respect to the counter gear mechanism 6 is the first.
  • the two-turn electric machine 5 is not arranged. Therefore, even if the vehicle on which the vehicle drive device 1 is mounted has an installation object OB (see FIG. 2) such as a steering shaft or a brake servo, interference with the installation object OB is avoided. be able to. That is, it is possible to realize a vehicle drive device 1 having excellent vehicle mountability.
  • the first rotary electric machine 4 is arranged on the lower side of the vertical direction V, and the counter gear mechanism 6 is arranged on the upper side of the vertical direction V. Therefore, even when an oil sump is formed in the lower part of the case 9, the first counter gear 61 and the second counter gear 62 do not agitate the oil in the oil sump. A part of the first rotary electric machine 4 is immersed in the oil sump, but the agitation of the oil accompanying the rotation of the first rotor 42 is only the amount generated on the surface of the first rotor 42, and is kept to a minimum. Therefore, the resistance associated with the stirring (raising) of the oil can be suppressed to a small value, and the energy efficiency can be improved.
  • the vehicle drive device 1 of the present embodiment is a distribution differential gear mechanism 3, a first rotary electric machine 4, a second rotary electric machine 5, a counter gear mechanism 6, and an output differential gear mechanism 7 in an axial view.
  • the positional relationship is different from that of the first embodiment.
  • the vehicle drive device 1 of the present embodiment will be mainly described as being different from the first embodiment. It should be noted that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof will be omitted.
  • the third axis X3, the fourth axis X4, and the fifth axis X5 are arranged on the same side with respect to the first virtual plane P1 which is a vertical plane including the first axis X1. ..
  • the third axis X3, the fourth axis X4, the fifth axis X5, and the second axis X2 are separately arranged on both sides of the first virtual plane P1.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis and the second rotary electric machine 5 having the third axis X3 as the rotation axis are arranged so that their respective arrangement areas include the first virtual plane P1. Has been done.
  • the counter gear mechanism 6 having the fourth axis X4 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all in the horizontal direction H with respect to the first virtual plane P1. It is arranged so as to be located on the second side H2 in the horizontal direction (rear side in the front-rear direction of the vehicle in this example).
  • the second axis X2, the fourth axis X4, and the fifth axis X5 are arranged on the same side (lower side of the vertical direction V in this example) with respect to the second virtual plane P2 which is a horizontal plane including the first axis X1.
  • the third axis X3 is arranged on the opposite side (upper side of the vertical direction V in this example).
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis have their respective arrangement regions (more specifically, the upper side).
  • the arrangement area) is arranged so as to include the second virtual plane P2.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the lower side) includes the second virtual plane P2.
  • the counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located below the vertical direction V with respect to the second virtual plane P2.
  • the second axis X2 and the fourth axis X4 are arranged on the same side with respect to the third virtual plane P3 which is a virtual plane including the first axis X1 and the fifth axis X5.
  • the second axis X2, the fourth axis X4, and the third axis X3 are separately arranged on both sides of the third virtual plane P3.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that the entire second rotary electric machine 5 is located on the upper side with respect to the third virtual plane P3.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that its arrangement area is in contact with the third virtual plane P3.
  • the counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located on the lower side with respect to the third virtual plane P3.
  • the third axis X3 and the fifth axis X5 are arranged on the same side with respect to the fourth virtual plane P4 which is a virtual plane including the first axis X1 and the fourth axis X4.
  • the third axis X3, the fifth axis X5, and the second axis X2 are separately arranged on both sides of the fourth virtual plane P4.
  • the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side with respect to the fourth virtual plane P4.
  • the second rotary electric machine 5 having the third axis X3 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all located upward with respect to the fourth virtual plane P4. It is arranged so that it is located.
  • the third axis X3 is arranged between the second axis X2 and the fifth axis X5 in the horizontal direction H, and the second rotary electric machine 5 is arranged with the distribution differential gear mechanism 3 in the horizontal direction H. Since it fits within the area including the output differential gear mechanism 7, it can be miniaturized in the horizontal direction H (vehicle front-rear direction).
  • first rotary electric machine 4 which is slightly smaller than the second rotary electric machine 5 is arranged so as to be located on the first side H1 in the horizontal direction (in this example, the front side in the front-rear direction of the vehicle), it is mounted on the vehicle. Sometimes it is easy to secure space in the crushable zone of the vehicle. Therefore, safety can be enhanced.
  • the first rotary electric machine 4 is arranged below the distribution differential gear mechanism 3 (including diagonally downward), and the second rotary electric machine 5 is above the distribution differential gear mechanism 3.
  • the configuration arranged diagonally above has been described as an example.
  • the position is not limited to such a configuration, and the first rotary electric machine 4 and the second rotary electric machine 5 do not interfere with each other and do not interfere with the output differential gear mechanism 7 or the counter gear mechanism 6. If it is related, they can be arranged at arbitrary positions around the first axis X1.
  • the positions of the first rotary electric machine 4 and the second rotary electric machine 5 are exchanged, the second rotary electric machine 5 is arranged below the distribution differential gear mechanism 3, and the first rotary electric machine 4 is a distribution differential gear mechanism. It may be placed above 3.
  • the first output gear 44 that rotates integrally with the first rotor 42 meshes with the connecting gear 36 that rotates integrally with the first rotating element 31 (sun gear S), so that the first rotating electric machine 4 has been described as an example of a configuration in which the differential gear mechanism 3 for distribution is arranged on a different shaft from the mechanism 3.
  • another gear mechanism such as an idler gear or a counter gear mechanism may be provided between the first output gear 44 and the connecting gear 36.
  • the first rotary electric machine 4 and the distribution differential gear mechanism 3 may be arranged on different axes by using another mechanism such as a belt mechanism or a chain mechanism.
  • the second output gear 54 that rotates integrally with the second rotor 52 meshes with the outer peripheral gear 39 that rotates integrally with the third rotating element 33 (ring gear R), so that the second rotating electric machine 5
  • the differential gear mechanism 3 for distribution has been described as an example of a configuration in which the differential gear mechanism 3 for distribution is arranged on a different shaft from the mechanism 3.
  • another gear mechanism such as an idler gear or a counter gear mechanism may be provided between the second output gear 54 and the outer peripheral gear 39.
  • the second rotary electric machine 5 and the distribution differential gear mechanism 3 may be arranged on different axes by using another mechanism such as a belt mechanism or a chain mechanism.
  • the configuration in which the second counter gear 62 is arranged on the second side L2 in the axial direction with respect to the first counter gear 61 in the counter gear mechanism 6 has been described as an example.
  • the second counter gear 62 may be arranged on the first side L1 in the axial direction with respect to the first counter gear 61 without being limited to such a configuration.
  • the distribution differential gear mechanism 3 is configured with a single pinion type planetary gear mechanism configuration.
  • the distribution differential gear mechanism 3 may be configured by a double pinion type planetary gear mechanism without being limited to such a configuration.
  • the distribution differential gear mechanism 3 may be configured by a mechanism that combines a plurality of planetary gear mechanisms.
  • the vehicle drive device preferably has the following configurations.
  • Vehicle drive device (1) The input member (2) that is driven and connected to the internal combustion engine (EG), 1st rotary electric machine (4) and 2nd rotary electric machine (5) and A pair of output members (8) that are driven and connected to the wheels (W), respectively.
  • An output differential gear mechanism (7) that distributes the input rotation to the pair of output members (8).
  • the first rotating element (31) that is driven and connected to the first rotating electric machine (4), the second rotating element (32) that is driven and connected to the input member (2), and the second rotating electric machine (5) and A distribution differential gear mechanism (3) having a third rotating element (33) that is driven and connected to the output differential gear mechanism (7) is provided.
  • the input member (2) is arranged coaxially with the distribution differential gear mechanism (3).
  • the first rotary electric machine (4) is arranged on a shaft separate from the distribution differential gear mechanism (3).
  • the second rotary electric machine (5) and the output differential gear mechanism (7) are arranged on separate axes from the first rotary electric machine (4) and the distribution differential gear mechanism (3), respectively. ..
  • the first rotary electric machine (4) is arranged on a different axis from the input member (2) and the differential gear mechanism (3) arranged coaxially, so that the first rotary electric machine ( 4)
  • the degree of freedom of placement is increased.
  • the restriction on the arrangement position of the second rotating electric machine (5) is relaxed, and the degree of freedom in the arrangement of the second rotating electric machine (5) is increased. Therefore, the degree of freedom in arranging each component constituting the vehicle drive device (1) is increased, including the arrangement of the output differential gear mechanism (7). Therefore, the restrictions on the outer shape of the vehicle drive device (1) can be relaxed, and the vehicle drive device (1) having excellent vehicle mountability can be realized.
  • the distribution differential gear mechanism (3) includes a sun gear (S) as the first rotating element (31), a carrier (C) as the second rotating element (32), and the third rotating element (33). ), It is preferable that the planetary gear mechanism is a single pinion type.
  • a part of the driving force of the internal combustion engine (EG) input to the input member (2) is used to generate electricity in the first rotary electric machine (4), and the other part is used by the wheels (W). It is possible to realize a so-called split hybrid mode in which the vehicle is transmitted to the side and the vehicle is driven. Then, in the vehicle drive device (1) capable of realizing such a split hybrid mode, the vehicle mountability can be improved.
  • a counter gear mechanism (6) provided in a power transmission path between the third rotating element (33) and the output differential gear mechanism (7) is provided.
  • the rotation axis (X2, X3) of either one of the first rotary electric machine (4) and the second rotary electric machine (5) and the rotation axis (X4) of the counter gear mechanism (6) are divided into both sides. It is preferable that they are arranged.
  • the first rotation makes effective use of the two V-shaped spaces formed by the outer shape of the distribution differential gear mechanism (3) and the outer shape of the output differential gear mechanism (7).
  • One of the electric machine (4) and the second rotating electric machine (5) and the counter gear mechanism (6) can be arranged respectively. Therefore, the size of the entire device can be reduced.
  • either one of the first rotary electric machine (4) and the second rotary electric machine (5) is arranged below the counter gear mechanism (6).
  • the first rotary electric machine having no rotating "teeth" By arranging either one of 4) and the second rotary electric machine (5) below, the amount of oil scraped up can be suppressed to a small level. Therefore, the energy efficiency of the vehicle drive device (1) can be improved.
  • the counter gear mechanism (6) is arranged closer to the internal combustion engine (EG) than the input gear (71) of the output differential gear mechanism (7).
  • the second rotary electric machine (5) is arranged on the rear side of the vehicle with respect to the input member (2), and the first rotary electric machine (4) is on the front side of the vehicle with respect to the input member (2). It is preferable to be arranged.
  • the first rotary electric machine (4) having a relatively small diameter is arranged.
  • the front side of the vehicle can be compactly formed. Therefore, when the vehicle is mounted on the vehicle, it is easy to secure a space in the crushable zone of the vehicle, and the safety can be improved.
  • the first gear (44) that rotates integrally with the first rotor (42) of the first rotary electric machine (4), and A second gear (36) that rotates integrally with the first rotating element (31) is provided. It is preferable that the first gear (44) and the second gear (36) are in mesh with each other.
  • the rotation axis of the first rotary electric machine (4) is distributed by the total length of the radius of the first gear (44) and the radius of the second gear (36). It can be arranged so as to be offset from the rotation axis of 3). Therefore, the first rotary electric machine (4) and the distribution differential gear mechanism (3) can be easily and surely arranged on different shafts.
  • a third gear (54) that rotates integrally with the second rotor (52) of the second rotary electric machine (5), and A fourth gear (39) that rotates integrally with the third rotating element (33) is provided. It is preferable that the third gear (54) and the fourth gear (39) are in mesh with each other.
  • the rotation axis of the second rotary electric machine (5) is distributed by the total length of the radius of the third gear (54) and the radius of the fourth gear (39). It can be arranged so as to be offset from the rotation axis of 3). Therefore, the second rotary electric machine (5) and the distribution differential gear mechanism (3) can be easily and surely arranged on different shafts.
  • the third rotating element (33) and the fourth gear (39) are arranged so as to overlap each other in the radial direction.
  • the third rotating element (33) and the fourth gear (33) are arranged in different regions in the axial direction (L) than the third rotating element (33) and the fourth gear (39).
  • the axial (L) region occupied by the gear (39) can be kept small.
  • the axial (L) length of the entire device can be kept short.
  • first stator (41) of the first rotary electric machine (4) and the second stator (51) of the second rotary electric machine (5) overlap the arrangement regions in the axial direction (L). It is preferable that the first stator (41) and the second stator (51) do not overlap in the axial direction.
  • the axial (L) length of the entire apparatus can be shortened by the amount that the axial (L) arrangement regions overlap between the first stator (41) and the second stator (51).
  • the output differential gear mechanism (7) and the second rotary electric machine (5) are arranged relatively apart in the horizontal direction, so that they do not easily interfere with each other in the vertical direction. Therefore, the vertical length of the entire device can be kept short (the height can be kept low).
  • a counter gear mechanism (6) provided in a power transmission path between the third rotating element (33) and the output differential gear mechanism (7) is provided.
  • the first rotating electric machine (4) and the second rotating electric machine (5) which are relatively large parts, can be arranged relatively apart from each other. Therefore, it is possible to reduce the size of the entire device while suppressing interference between the first rotary electric machine (4) and the second rotary electric machine (5).
  • the vehicle drive device according to the present disclosure may be capable of exerting at least one of the above-mentioned effects.

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Abstract

This vehicle drive device is provided with an input member, a distribution differential gear mechanism (3), a first rotating electrical machine (4), a second rotating electrical machine (5), an output differential gear mechanism (7), and an output member. The input member is arranged coaxially with the distribution differential gear mechanism (3). The first rotating electrical machine (4) is arranged on a separate axis to the distribution differential gear mechanism (3). The second rotating electrical machine (5) and the output differential gear mechanism (7) are each arranged on different axes to the first rotating electrical machine (4) and the distribution differential gear mechanism (3).

Description

車両用駆動装置Vehicle drive
　本発明は、車両用駆動装置に関する。 The present invention relates to a vehicle drive device.
　内燃機関に駆動連結される入力部材と、第１回転電機と、第２回転電機と、車輪に駆動連結される一対の出力部材と、分配用差動歯車機構と、出力用差動歯車機構とを備える車両用駆動装置が利用されている。このような車両用駆動装置の一例が、特開２０１７－７１３２８号公報（特許文献１）に開示されている。分配用差動歯車機構（遊星歯車機構６１）は３つの回転要素を有しており、第１回転要素（サンギヤＳ）に第１回転電機（第１電動機４１）が駆動連結され、第２回転要素（キャリアＣ）に入力部材（エンジンのクランク軸に接続された入力軸）が駆動連結され、第３回転要素（リングギヤＲ）に第２回転電機（第２電動機４４）及び出力用差動歯車機構（デファレンシャル機構）が駆動連結されている。 An input member that is driven and connected to an internal combustion engine, a first rotary electric machine, a second rotary electric machine, a pair of output members that are driven and connected to wheels, a differential gear mechanism for distribution, and a differential gear mechanism for output. Vehicle drive devices are used. An example of such a vehicle drive device is disclosed in Japanese Patent Application Laid-Open No. 2017-71328 (Patent Document 1). The differential gear mechanism for distribution (planetary gear mechanism 61) has three rotating elements, and the first rotating electric motor (first electric motor 41) is driven and connected to the first rotating element (sun gear S) to perform the second rotation. An input member (input shaft connected to the crank shaft of the engine) is driven and connected to the element (carrier C), and the second rotating electric motor (second motor 44) and the output differential gear are connected to the third rotating element (ring gear R). The mechanism (differential mechanism) is driven and connected.
　特許文献１の車両用駆動装置では、入力部材と分配用差動歯車機構と第１回転電機とが同軸に配置され、これらと別軸に、第２回転電機と出力用差動歯車機構とが配置されている。分配用差動歯車機構と第２回転電機と出力用差動歯車機構とは、カウンタギヤ機構（カウンタ軸４３）を介して、互いに駆動連結されている。 In the vehicle drive device of Patent Document 1, the input member, the differential gear mechanism for distribution, and the first rotary electric machine are arranged coaxially, and the second rotary electric machine and the differential gear mechanism for output are arranged on a separate axis from these. Have been placed. The distribution differential gear mechanism, the second rotary electric machine, and the output differential gear mechanism are drive-connected to each other via a counter gear mechanism (counter shaft 43).
　しかし、このような構成では、第２回転電機を配置できる位置が、カウンタギヤ機構の近傍の一部の領域に制限されてしまう。より具体的には、第２回転電機のロータと一体回転するギヤがカウンタギヤ機構のドリブンギヤに噛み合い、かつ、第２回転電機のステータが第１回転電機のステータ及び一対の出力部材（車軸）に干渉しない位置に、第２回転電機の配置位置が制限される。そのため、車両用駆動装置の外形に関する制約も大きくなり、その結果、車両側の構造によっては駆動装置の車両搭載性（車両への搭載性）が悪くなる場合があった。 However, in such a configuration, the position where the second rotary electric machine can be arranged is limited to a part of the area near the counter gear mechanism. More specifically, the gear that rotates integrally with the rotor of the second rotary electric machine meshes with the driven gear of the counter gear mechanism, and the stator of the second rotary electric machine is attached to the stator of the first rotary electric machine and a pair of output members (axles). The placement position of the second rotary electric machine is limited to a position where it does not interfere. Therefore, restrictions on the outer shape of the drive device for a vehicle are also increased, and as a result, the mountability of the drive device on the vehicle (mountability on the vehicle) may be deteriorated depending on the structure on the vehicle side.
特開２０１７－７１３２８号公報JP-A-2017-71328
　そこで、車両搭載性に優れた車両用駆動装置の実現が望まれる。 Therefore, it is desired to realize a vehicle drive device having excellent vehicle mountability.
　本開示に係る車両用駆動装置は、
　内燃機関に駆動連結される入力部材と、
　第１回転電機と、
　第２回転電機と、
　それぞれ車輪に駆動連結される一対の出力部材と、
　入力される回転を一対の前記出力部材に分配する出力用差動歯車機構と、
　前記第１回転電機に駆動連結される第１回転要素、前記入力部材に駆動連結される第２回転要素、並びに前記第２回転電機及び前記出力用差動歯車機構に駆動連結される第３回転要素を有する分配用差動歯車機構と、を備え、
　前記入力部材が前記分配用差動歯車機構と同軸に配置され、
　前記第１回転電機が前記分配用差動歯車機構と別軸に配置され、
　前記第２回転電機及び前記出力用差動歯車機構が、それぞれ、前記第１回転電機及び前記分配用差動歯車機構と別軸に配置されている。 The vehicle drive device according to the present disclosure is
Input members that are driven and connected to the internal combustion engine
With the 1st rotary electric machine
2nd rotary electric machine and
A pair of output members that are driven and connected to the wheels, respectively.
An output differential gear mechanism that distributes the input rotation to the pair of output members,
The first rotating element that is driven and connected to the first rotating electric machine, the second rotating element that is driven and connected to the input member, and the third rotation that is driven and connected to the second rotating electric machine and the output differential gear mechanism. With a differential gear mechanism for distribution, which has elements,
The input member is arranged coaxially with the distribution differential gear mechanism.
The first rotary electric machine is arranged on a shaft separate from the distribution differential gear mechanism.
The second rotary electric machine and the output differential gear mechanism are arranged on separate axes from the first rotary electric machine and the distribution differential gear mechanism, respectively.
　この構成によれば、同軸に配置される入力部材及び分配用差動歯車機構に対して第１回転電機が別軸に配置されるので、第１回転電機の配置自由度が高まる。これにより、第２回転電機の配置位置の制約が緩和されて、第２回転電機の配置自由度も高まる。従って、出力用差動歯車機構の配置も含めて、車両用駆動装置を構成する各部品の配置自由度が高まる。よって、車両用駆動装置の外形に関する制約を緩和することができ、車両搭載性に優れた車両用駆動装置を実現することができる。 According to this configuration, the first rotary electric machine is arranged on a separate axis with respect to the coaxially arranged input member and the differential gear mechanism for distribution, so that the degree of freedom in arrangement of the first rotary electric machine is increased. As a result, restrictions on the arrangement position of the second rotating electric machine are relaxed, and the degree of freedom in the arrangement of the second rotating electric machine is increased. Therefore, the degree of freedom in arranging each component constituting the vehicle drive device, including the arrangement of the output differential gear mechanism, is increased. Therefore, restrictions on the outer shape of the vehicle drive device can be relaxed, and a vehicle drive device having excellent vehicle mountability can be realized.
　本開示に係る技術のさらなる特徴と利点は、図面を参照して記述する以下の例示的かつ非限定的な実施形態の説明によってより明確になるであろう。 Further features and advantages of the techniques according to the present disclosure will be made clearer by the following illustration of exemplary and non-limiting embodiments described with reference to the drawings.
第１実施形態の車両用駆動装置のスケルトン図Skeleton diagram of the vehicle drive device of the first embodiment 車両用駆動装置の軸方向から見たレイアウト図Layout diagram seen from the axial direction of the vehicle drive unit 第２実施形態の車両用駆動装置の軸方向から見たレイアウト図Layout view of the vehicle drive device of the second embodiment as viewed from the axial direction
〔第１実施形態〕
　車両用駆動装置の第１実施形態について、図面を参照して説明する。本実施形態の車両用駆動装置１は、車輪Ｗの駆動力源として内燃機関ＥＧ及び回転電機４，５の双方を備えるハイブリッド車両用の駆動装置である。この車両用駆動装置１は、いわゆる２モータスプリット方式のハイブリッド車両用の駆動装置として構成されている。また、本実施形態に係る車両用駆動装置１は、ＦＦ（Front Engine Front Drive）車両用の駆動装置として構成されている。 [First Embodiment]
The first embodiment of the vehicle drive device will be described with reference to the drawings. The vehicle drive device 1 of the present embodiment is a drive device for a hybrid vehicle including both an internal combustion engine EG and rotary electric machines 4 and 5 as a drive force source for the wheels W. The vehicle drive device 1 is configured as a drive device for a so-called two-motor split type hybrid vehicle. Further, the vehicle drive device 1 according to the present embodiment is configured as a drive device for an FF (Front Engine Front Drive) vehicle.
　図１に示すように、車両用駆動装置１は、入力部材２と、分配用差動歯車機構３と、第１回転電機４と、第２回転電機５と、カウンタギヤ機構６と、出力用差動歯車機構７と、出力部材８とを備えている。これらは、ケース（駆動装置ケース）９内に収容されている。なお、入力部材２の一部と出力部材８の一部とは、ケース９の外部に露出している。 As shown in FIG. 1, the vehicle drive device 1 includes an input member 2, a distribution differential gear mechanism 3, a first rotary electric machine 4, a second rotary electric machine 5, a counter gear mechanism 6, and an output. It includes a differential gear mechanism 7 and an output member 8. These are housed in a case (driving device case) 9. A part of the input member 2 and a part of the output member 8 are exposed to the outside of the case 9.
　入力部材２及び分配用差動歯車機構３は、これらに共通の第１軸Ｘ１上に配置されている。第１回転電機４は、第１軸Ｘ１とは異なる第２軸Ｘ２上に配置されている。第２回転電機５は、第１軸Ｘ１及び第２軸Ｘ２とは異なる第３軸Ｘ３上に配置されている。カウンタギヤ機構６は、第１軸Ｘ１、第２軸Ｘ２、及び第３軸Ｘ３とは異なる第４軸Ｘ４上に配置されている。出力用差動歯車機構７は、第１軸Ｘ１、第２軸Ｘ２、第３軸Ｘ３、及び第４軸Ｘ４とは異なる第５軸Ｘ５上に配置されている。第１軸Ｘ１、第２軸Ｘ２、第３軸Ｘ３、第４軸Ｘ４、及び第５軸Ｘ５は、互いに平行に配置されている。本実施形態では、これらの各軸Ｘ１～Ｘ５に平行な方向を「軸方向Ｌ」と言う。 The input member 2 and the distribution differential gear mechanism 3 are arranged on the first axis X1 common to them. The first rotary electric machine 4 is arranged on the second axis X2, which is different from the first axis X1. The second rotary electric machine 5 is arranged on a third axis X3, which is different from the first axis X1 and the second axis X2. The counter gear mechanism 6 is arranged on a fourth axis X4, which is different from the first axis X1, the second axis X2, and the third axis X3. The output differential gear mechanism 7 is arranged on the fifth axis X5, which is different from the first axis X1, the second axis X2, the third axis X3, and the fourth axis X4. The first axis X1, the second axis X2, the third axis X3, the fourth axis X4, and the fifth axis X5 are arranged in parallel with each other. In the present embodiment, the direction parallel to each of these axes X1 to X5 is referred to as "axial direction L".
　また、軸方向Ｌにおける一方側であって本例では内燃機関ＥＧが配置される側を軸方向第１側Ｌ１と言い、軸方向Ｌにおける他方側であって本例では内燃機関ＥＧ側とは反対側を軸方向第２側Ｌ２と言う。 Further, the side that is one side in the axial direction L and in which the internal combustion engine EG is arranged is referred to as the first side L1 in the axial direction, and the other side in the axial direction L that is the internal combustion engine EG side in this example. The opposite side is called the second side L2 in the axial direction.
　入力部材２は、内燃機関ＥＧに駆動連結される。内燃機関ＥＧは、機関内部における燃料の燃焼により駆動されて動力を取り出す原動機（ガソリンエンジンやディーゼルエンジン等）である。本実施形態では、内燃機関ＥＧの出力軸（クランクシャフト等の内燃機関出力軸）に、入力部材２が駆動連結されている。なお、入力部材２は、ダンパやクラッチ等を介して内燃機関ＥＧに駆動連結されても良い。 The input member 2 is driven and connected to the internal combustion engine EG. The internal combustion engine EG is a prime mover (gasoline engine, diesel engine, etc.) that is driven by combustion of fuel inside the engine to extract power. In the present embodiment, the input member 2 is drive-connected to the output shaft of the internal combustion engine EG (internal combustion engine output shaft such as a crankshaft). The input member 2 may be driven and connected to the internal combustion engine EG via a damper, a clutch, or the like.
　なお、「駆動連結」とは、２つの回転要素が駆動力（トルクと同義）を伝達可能に連結された状態を意味する。この概念には、２つの回転要素が一体回転するように連結された状態や、１つ以上の伝動部材を介して駆動力を伝達可能に連結された状態が含まれる。このような伝動部材には、回転を同速で又は変速して伝達する各種の部材（軸、歯車機構、ベルト等）が含まれ、回転及び駆動力を選択的に伝達する係合装置（摩擦係合装置や噛み合い式係合装置等）が含まれても良い。 Note that "driving connection" means a state in which two rotating elements are connected so as to be able to transmit a driving force (synonymous with torque). This concept includes a state in which two rotating elements are connected so as to rotate integrally, and a state in which two rotating elements are connected so as to be able to transmit a driving force via one or more transmission members. Such transmission members include various members (shafts, gear mechanisms, belts, etc.) that transmit rotation at the same speed or at different speeds, and are engaging devices (friction) that selectively transmit rotation and driving force. Engagement device, meshing type engagement device, etc.) may be included.
　入力部材２は、分配用差動歯車機構３に駆動連結されている。分配用差動歯車機構３は、第１回転要素３１、第２回転要素３２、及び第３回転要素３３の３つの回転要素を有している。本実施形態では、分配用差動歯車機構３は、第１回転要素３１としてのサンギヤＳ、第２回転要素３２としてのキャリヤＣ、及び第３回転要素３３としてのリングギヤＲを有する遊星歯車機構により構成されている。本実施形態の分配用差動歯車機構３はシングルピニオン型の遊星歯車機構であり、３つの回転要素３１～３３は、回転速度の順に、第１回転要素３１（サンギヤＳ）、第２回転要素３２（キャリヤＣ）、及び第３回転要素３３（リングギヤＲ）となっている。 The input member 2 is drive-connected to the distribution differential gear mechanism 3. The distribution differential gear mechanism 3 has three rotating elements, that is, a first rotating element 31, a second rotating element 32, and a third rotating element 33. In the present embodiment, the distribution differential gear mechanism 3 is a planetary gear mechanism having a sun gear S as a first rotating element 31, a carrier C as a second rotating element 32, and a ring gear R as a third rotating element 33. It is configured. The distribution differential gear mechanism 3 of the present embodiment is a single pinion type planetary gear mechanism, and the three rotating elements 31 to 33 are the first rotating element 31 (sun gear S) and the second rotating element in the order of rotation speed. 32 (carrier C) and the third rotating element 33 (ring gear R).
　なお、「回転速度の順」とは、各回転要素３１～３３の回転状態における回転速度の順番のことである。各回転要素３１～３３の回転速度は、分配用差動歯車機構３の回転状態によって変化するが、各回転要素３１～３３の回転速度の高低の並び順は、分配用差動歯車機構３の構造によって定まるものであるため一定となる。なお、各回転要素３１～３３の回転速度の順は、当業者にとって周知の速度線図（共線図とも言う）における各回転要素３１～３３の配置順に等しい。 The "order of rotation speed" is the order of rotation speed of each rotation element 31 to 33 in the rotation state. The rotation speed of each of the rotating elements 31 to 33 changes depending on the rotational state of the distribution differential gear mechanism 3, but the order of the high and low rotation speeds of the rotating elements 31 to 33 is the order of the distribution differential gear mechanism 3. Since it is determined by the structure, it is constant. The order of the rotational speeds of the rotating elements 31 to 33 is the same as the arrangement order of the rotating elements 31 to 33 in the speed diagram (also referred to as a collinear diagram) well known to those skilled in the art.
　第１回転要素３１（サンギヤＳ）は、第１軸Ｘ１上に配置された連結軸３５を介して連結ギヤ３６と一体回転するように連結されている。連結ギヤ３６は、第１回転要素３１（サンギヤＳ）に対して軸方向第２側Ｌ２に配置されている。図示の例では、連結ギヤ３６と第１回転要素３１（サンギヤＳ）とが同径に描かれているが、連結ギヤ３６は、第１回転要素３１（サンギヤＳ）に対して大径に形成されても良いし、小径に形成されても良い。第１回転要素３１（サンギヤＳ）は、連結ギヤ３６を介して、第１回転電機４に駆動連結されている。 The first rotating element 31 (sun gear S) is connected so as to rotate integrally with the connecting gear 36 via a connecting shaft 35 arranged on the first shaft X1. The connecting gear 36 is arranged on the second side L2 in the axial direction with respect to the first rotating element 31 (sun gear S). In the illustrated example, the connecting gear 36 and the first rotating element 31 (sun gear S) are drawn to have the same diameter, but the connecting gear 36 is formed to have a larger diameter than the first rotating element 31 (sun gear S). It may be formed into a small diameter. The first rotating element 31 (sun gear S) is driven and connected to the first rotating electric machine 4 via the connecting gear 36.
　第２回転要素３２（キャリヤＣ）は、第１回転要素３１（サンギヤＳ）及び第３回転要素３３（リングギヤＲ）の両方に噛み合う複数のピニオンギヤを回転可能に支持している。第２回転要素３２（キャリヤＣ）は、入力部材２と一体回転するように連結されている。 The second rotating element 32 (carrier C) rotatably supports a plurality of pinion gears that mesh with both the first rotating element 31 (sun gear S) and the third rotating element 33 (ring gear R). The second rotating element 32 (carrier C) is connected to the input member 2 so as to rotate integrally.
　第３回転要素３３（リングギヤＲ）は、円筒状に形成されたギヤ形成部材３８の内周面に形成されている。ギヤ形成部材３８の外周面には、外周ギヤ３９が形成されている。これにより、第３回転要素３３（リングギヤＲ）と外周ギヤ３９とが一体回転するように連結されている。本実施形態では、径方向視で、第３回転要素３３（リングギヤＲ）と外周ギヤ３９とが重複して配置されている。ここで、２つの部材の配置に関して、「ある方向視で重複する」とは、その視線方向に平行な仮想直線を当該仮想直線に直交する各方向に移動させた場合に、当該仮想直線が２つの部材の双方に交わる領域が少なくとも一部に存在することを意味する。第３回転要素３３（リングギヤＲ）は、外周ギヤ３９を介して、第２回転電機５に駆動連結されているとともに、さらにカウンタギヤ機構６を介して、出力用差動歯車機構７に駆動連結されている。 The third rotating element 33 (ring gear R) is formed on the inner peripheral surface of the gear forming member 38 formed in a cylindrical shape. An outer peripheral gear 39 is formed on the outer peripheral surface of the gear forming member 38. As a result, the third rotating element 33 (ring gear R) and the outer peripheral gear 39 are connected so as to rotate integrally. In the present embodiment, the third rotating element 33 (ring gear R) and the outer peripheral gear 39 are arranged so as to overlap each other in the radial direction. Here, regarding the arrangement of the two members, "overlapping in a certain direction" means that the virtual straight line is 2 when the virtual straight line parallel to the line-of-sight direction is moved in each direction orthogonal to the virtual straight line. It means that there is at least a part of the region that intersects both of the two members. The third rotating element 33 (ring gear R) is drive-connected to the second rotary electric machine 5 via the outer peripheral gear 39, and further drive-connected to the output differential gear mechanism 7 via the counter gear mechanism 6. Has been done.
　第１回転電機４は、ケース９に固定された第１ステータ４１と、当該第１ステータ４１の径方向内側に回転自在に支持された第１ロータ４２とを有する。第１ロータ４２は、第１ロータ軸４３と一体回転するように連結されている。第１ロータ軸４３の軸方向第１側Ｌ１の端部には、第１出力ギヤ４４が形成されている。第１出力ギヤ４４は、連結ギヤ３６に噛み合っている。このようにして、第１ロータ４２は、互いに噛み合う第１出力ギヤ４４と連結ギヤ３６とを介して、分配用差動歯車機構３の第１回転要素３１（サンギヤＳ）に駆動連結されている。本実施形態では、第１出力ギヤ４４が「第１ギヤ」に相当し、連結ギヤ３６が「第２ギヤ」に相当する。 The first rotary electric machine 4 has a first stator 41 fixed to the case 9 and a first rotor 42 rotatably supported inside the first stator 41 in the radial direction. The first rotor 42 is connected so as to rotate integrally with the first rotor shaft 43. A first output gear 44 is formed at the end of the first rotor shaft 43 on the first side L1 in the axial direction. The first output gear 44 meshes with the connecting gear 36. In this way, the first rotor 42 is driven and connected to the first rotating element 31 (sun gear S) of the distribution differential gear mechanism 3 via the first output gear 44 and the connecting gear 36 that mesh with each other. .. In the present embodiment, the first output gear 44 corresponds to the "first gear" and the connecting gear 36 corresponds to the "second gear".
　第１回転電機４は、電力の供給を受けて動力を発生するモータ（電動機）としての機能と、動力の供給を受けて電力を発生するジェネレータ（発電機）としての機能とを果たすことが可能である。第１回転電機４は、蓄電装置（バッテリやキャパシタ等；図示せず）に電気的に接続されている。第１回転電機４は、主に分配用差動歯車機構３を介して入力される入力部材２（内燃機関ＥＧ）のトルクにより発電を行うジェネレータとして機能する。なお、車両の高速走行時や内燃機関ＥＧの始動時等には、第１回転電機４がモータとして機能する場合もある。 The first rotary electric machine 4 can function as a motor (electric motor) that receives power supply and generates power, and as a generator (generator) that receives power supply and generates power. Is. The first rotary electric machine 4 is electrically connected to a power storage device (battery, capacitor, etc .; not shown). The first rotary electric machine 4 functions as a generator that generates electric power mainly by the torque of the input member 2 (internal combustion engine EG) input via the distribution differential gear mechanism 3. The first rotary electric machine 4 may function as a motor when the vehicle is traveling at high speed or when the internal combustion engine EG is started.
　第２回転電機５は、ケース９に固定された第２ステータ５１と、当該第２ステータ５１の径方向内側に回転自在に支持された第２ロータ５２とを有する。第２ロータ５２は、第２ロータ軸５３と一体回転するように連結されている。第２ロータ軸５３の軸方向第１側Ｌ１の端部には、第２出力ギヤ５４が形成されている。第２出力ギヤ５４は、外周ギヤ３９に噛み合っている。このようにして、第２ロータ５２は、互いに噛み合う第２出力ギヤ５４と外周ギヤ３９とを介して、さらにカウンタギヤ機構６を介して、出力用差動歯車機構７に駆動連結されている。本実施形態では、第２出力ギヤ５４が「第３ギヤ」に相当し、外周ギヤ３９が「第４ギヤ」に相当する。 The second rotary electric machine 5 has a second stator 51 fixed to the case 9 and a second rotor 52 rotatably supported inside the second stator 51 in the radial direction. The second rotor 52 is connected to the second rotor shaft 53 so as to rotate integrally with the second rotor shaft 53. A second output gear 54 is formed at the end of the second rotor shaft 53 on the first side L1 in the axial direction. The second output gear 54 meshes with the outer peripheral gear 39. In this way, the second rotor 52 is drive-connected to the output differential gear mechanism 7 via the second output gear 54 and the outer peripheral gear 39 that mesh with each other, and further via the counter gear mechanism 6. In the present embodiment, the second output gear 54 corresponds to the "third gear", and the outer peripheral gear 39 corresponds to the "fourth gear".
　第２回転電機５も、モータとしての機能とジェネレータとしての機能とを果たすことが可能であり、蓄電装置（図示せず）に電気的に接続されている。第２回転電機５は、主に車両を走行させるための駆動力を補助するモータ（アシストモータ）として機能する。なお、車両の減速時等には、第２回転電機５がジェネレータとして機能する場合もある。 The second rotary electric machine 5 can also function as a motor and a generator, and is electrically connected to a power storage device (not shown). The second rotary electric machine 5 mainly functions as a motor (assist motor) that assists a driving force for traveling the vehicle. When the vehicle is decelerating or the like, the second rotary electric machine 5 may function as a generator.
　本実施形態では、第１回転電機４と第２回転電機５とが別軸に配置されており、さらに、第１回転電機４及び第２回転電機５のそれぞれが、入力部材２及び分配用差動歯車機構３と別軸に配置されている。このため、第１回転電機４及び第２回転電機５のそれぞれの配置自由度が高くなっている。 In the present embodiment, the first rotary electric machine 4 and the second rotary electric machine 5 are arranged on different axes, and further, each of the first rotary electric machine 4 and the second rotary electric machine 5 has an input member 2 and a difference for distribution. It is arranged on a shaft separate from the moving gear mechanism 3. Therefore, the degree of freedom in arrangement of the first rotary electric machine 4 and the second rotary electric machine 5 is high.
　第１回転電機４及び第２回転電機５は、分配用差動歯車機構３に対して軸方向第２側Ｌ２に配置されている。また、第１回転電機４及び第２回転電機５は、それぞれのステータ４１，５１の軸方向Ｌの配置領域が重なっている（同じ軸方向Ｌの領域を少なくとも含むように配置されている）。このため、第１回転電機４の第１ステータ４１と第２回転電機５の第２ステータ５１とは、軸方向視で重複していない（図２を参照）。 The first rotary electric machine 4 and the second rotary electric machine 5 are arranged on the second side L2 in the axial direction with respect to the distribution differential gear mechanism 3. Further, the first rotary electric machine 4 and the second rotary electric machine 5 are arranged so that the arrangement regions of the stators 41 and 51 in the axial direction L overlap each other (the regions are arranged so as to include at least the region of the same axial direction L). Therefore, the first stator 41 of the first rotary electric machine 4 and the second stator 51 of the second rotary electric machine 5 do not overlap in the axial direction (see FIG. 2).
　カウンタギヤ機構６は、分配用差動歯車機構３（具体的には、第３回転要素３３）と出力用差動歯車機構７との間の動力伝達経路に設けられている。カウンタギヤ機構６は、第１カウンタギヤ６１と、この第１カウンタギヤ６１とは軸方向Ｌの異なる位置に設けられた第２カウンタギヤ６２と、これら２つのカウンタギヤ６１，６２を連結するカウンタ軸６３とを有する。本実施形態では、第２カウンタギヤ６２は、第１カウンタギヤ６１に対して軸方向第２側Ｌ２に配置されている。また、第２カウンタギヤ６２は、第１カウンタギヤ６１よりも小径に形成されている。第１カウンタギヤ６１は、第３回転要素３３（リングギヤＲ）と一体回転する外周ギヤ３９に噛み合っている。第２カウンタギヤ６２は、出力用差動歯車機構７の差動入力ギヤ７１に噛み合っている。カウンタギヤ機構６は、分配用差動歯車機構３からの出力回転を減速して（同時に分配用差動歯車機構３からの出力トルクを増幅して）出力用差動歯車機構７に伝達する減速機構として機能する。 The counter gear mechanism 6 is provided in the power transmission path between the distribution differential gear mechanism 3 (specifically, the third rotating element 33) and the output differential gear mechanism 7. The counter gear mechanism 6 is a counter that connects the first counter gear 61, the second counter gear 62 provided at a position different from the first counter gear 61 in the axial direction L, and these two counter gears 61 and 62. It has a shaft 63 and. In the present embodiment, the second counter gear 62 is arranged on the second side L2 in the axial direction with respect to the first counter gear 61. Further, the second counter gear 62 is formed to have a smaller diameter than the first counter gear 61. The first counter gear 61 meshes with the outer peripheral gear 39 that rotates integrally with the third rotating element 33 (ring gear R). The second counter gear 62 meshes with the differential input gear 71 of the output differential gear mechanism 7. The counter gear mechanism 6 decelerates the output rotation from the distribution differential gear mechanism 3 (at the same time amplifies the output torque from the distribution differential gear mechanism 3) and transmits the deceleration to the output differential gear mechanism 7. Functions as a mechanism.
　出力用差動歯車機構７は、差動入力ギヤ７１を有しており、この差動入力ギヤ７１に入力される回転を一対の出力部材８に分配する。一対の出力部材８は、それぞれ車輪Ｗに駆動連結される。出力用差動歯車機構７は、カウンタギヤ機構６を介して分配用差動歯車機構３側から差動入力ギヤ７１に入力される回転及びトルクを、左右２つの出力部材８（すなわち、左右２つの車輪Ｗ）に分配して伝達する。 The output differential gear mechanism 7 has a differential input gear 71, and distributes the rotation input to the differential input gear 71 to a pair of output members 8. The pair of output members 8 are each driven and connected to the wheel W. The output differential gear mechanism 7 transmits the rotation and torque input to the differential input gear 71 from the distribution differential gear mechanism 3 side via the counter gear mechanism 6 to the left and right two output members 8 (that is, the left and right 2). It is distributed and transmitted to one wheel W).
　ここで、図２に示すように、入力部材２の回転軸心である第１軸Ｘ１を包含する鉛直面を第１仮想平面Ｐ１とし、第１軸Ｘ１を包含する水平面を第２仮想平面Ｐ２とする。また、上記の第１軸Ｘ１と出力用差動歯車機構７の回転軸心である第５軸Ｘ５とを包含する仮想平面を第３仮想平面Ｐ３とし、上記の第１軸Ｘ１とカウンタギヤ機構６の回転軸心である第４軸Ｘ４とを包含する仮想平面を第４仮想平面Ｐ４とする。これらの仮想平面Ｐ１～Ｐ４との関係における、軸方向視での各軸Ｘ１～Ｘ５及び各部品の配置は、以下のようになっている。 Here, as shown in FIG. 2, the vertical plane including the first axis X1 which is the rotation axis of the input member 2 is defined as the first virtual plane P1, and the horizontal plane including the first axis X1 is the second virtual plane P2. And. Further, the virtual plane including the first axis X1 and the fifth axis X5 which is the rotation axis of the output differential gear mechanism 7 is defined as the third virtual plane P3, and the first axis X1 and the counter gear mechanism are defined as the third virtual plane P3. The virtual plane including the fourth axis X4, which is the center of rotation of 6, is referred to as the fourth virtual plane P4. The arrangement of each axis X1 to X5 and each component in the axial direction in relation to these virtual planes P1 to P4 is as follows.
　第１仮想平面Ｐ１に対して、第２軸Ｘ２と第４軸Ｘ４と第５軸Ｘ５とが同じ側に配置されている。そして、第１仮想平面Ｐ１に対して、第３軸Ｘ３と、第２軸Ｘ２、第４軸Ｘ４、及び第５軸Ｘ５とが両側に分かれて配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４は、その配置領域が第１仮想平面Ｐ１を含むように配置されている。第３軸Ｘ３を回転軸心とする第２回転電機５は、その全体が第１仮想平面Ｐ１に対して水平方向Ｈの一方側である水平方向第１側Ｈ１（本例では車両前後方向の前側）に位置するように配置されている。第４軸Ｘ４を回転軸心とするカウンタギヤ機構６及び第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、その全体が第１仮想平面Ｐ１に対して水平方向Ｈの他方側である水平方向第２側Ｈ２（本例では車両前後方向の後ろ側）に位置するように配置されている。 The second axis X2, the fourth axis X4, and the fifth axis X5 are arranged on the same side with respect to the first virtual plane P1. The third axis X3, the second axis X2, the fourth axis X4, and the fifth axis X5 are separately arranged on both sides of the first virtual plane P1. Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the arrangement area includes the first virtual plane P1. The second rotary electric machine 5 having the third axis X3 as the rotation axis is the horizontal first side H1 (in this example, the vehicle front-rear direction) whose entire surface is one side of the horizontal direction H with respect to the first virtual plane P1. It is arranged so as to be located on the front side). The counter gear mechanism 6 having the fourth axis X4 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all in the horizontal direction H with respect to the first virtual plane P1. It is arranged so as to be located on the second side H2 in the horizontal direction (rear side in the front-rear direction of the vehicle in this example).
　第２仮想平面Ｐ２に対して、第２軸Ｘ２と第５軸Ｘ５とが同じ側（本例では鉛直方向Ｖの下方側）に配置され、それとは反対側（本例では鉛直方向Ｖの上方側）に第３軸Ｘ３と第４軸Ｘ４とが配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４は、その全体が第２仮想平面Ｐ２に対して鉛直方向Ｖの下方側に位置するように配置されている。第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、その配置領域（より具体的には、上方側の配置領域）が第２仮想平面Ｐ２を含むように配置されている。第３軸Ｘ３を回転軸心とする第２回転電機５及び第４軸Ｘ４を回転軸心とするカウンタギヤ機構６は、その配置領域（より具体的には、それぞれ下方側の配置領域）が第２仮想平面Ｐ２を含むように配置されている。 The second axis X2 and the fifth axis X5 are arranged on the same side (lower side of the vertical direction V in this example) with respect to the second virtual plane P2, and on the opposite side (upper side of the vertical direction V in this example). The third axis X3 and the fourth axis X4 are arranged on the side). Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side in the vertical direction V with respect to the second virtual plane P2. The output differential gear mechanism 7 having the fifth axis X5 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the upper side) includes the second virtual plane P2. The second rotary electric machine 5 having the third axis X3 as the rotation axis and the counter gear mechanism 6 having the fourth axis X4 as the rotation axis have their arrangement areas (more specifically, each lower arrangement area). It is arranged so as to include the second virtual plane P2.
　第３仮想平面Ｐ３に対して、第２軸Ｘ２と第３軸Ｘ３とが同じ側に配置されている。そして、第３仮想平面Ｐ３に対して、第２軸Ｘ２及び第３軸Ｘ３と、第４軸Ｘ４とが両側に分かれて配置されている。また、第３軸Ｘ３を回転軸心とする第２回転電機５は、その配置領域が第３仮想平面Ｐ３を含むように配置されている。第２軸Ｘ２を回転軸心とする第１回転電機４は、その全体が第３仮想平面Ｐ３に対して下方側に位置するように配置されている。第４軸Ｘ４を回転軸心とするカウンタギヤ機構６は、その全体が第３仮想平面Ｐ３に対して上方側に位置するように配置されている。 The second axis X2 and the third axis X3 are arranged on the same side with respect to the third virtual plane P3. The second axis X2, the third axis X3, and the fourth axis X4 are separately arranged on both sides of the third virtual plane P3. Further, the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that the arrangement area includes the third virtual plane P3. The first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side with respect to the third virtual plane P3. The counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located on the upper side with respect to the third virtual plane P3.
　第４仮想平面Ｐ４に対して、第２軸Ｘ２と第５軸Ｘ５とが同じ側に配置されている。そして、第４仮想平面Ｐ４に対して、第２軸Ｘ２及び第５軸Ｘ５と、第３軸Ｘ３とが両側に分かれて配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４及び第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、その全体が第４仮想平面Ｐ４に対して下方側に位置するように配置されている。第３軸Ｘ３を回転軸心とする第２回転電機５は、その配置領域（より具体的には、下方側の配置領域）が第４仮想平面Ｐ４を含むように配置されている。 The second axis X2 and the fifth axis X5 are arranged on the same side with respect to the fourth virtual plane P4. The second axis X2, the fifth axis X5, and the third axis X3 are separately arranged on both sides of the fourth virtual plane P4. Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are entirely on the lower side with respect to the fourth virtual plane P4. It is arranged so that it is located in. The second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the lower side) includes the fourth virtual plane P4.
　特に本実施形態では、第１回転電機４を分配用差動歯車機構３と別軸に配置することで、車両用駆動装置１の全体の大型化を抑えつつ、分配用差動歯車機構３に対して出力用差動歯車機構７とは反対側に第２回転電機５を配置できている。これにより、鉛直方向Ｖにおける出力用差動歯車機構７よりも上方であって、かつ、カウンタギヤ機構６よりも水平方向第２側Ｈ２の空間には、従来仕様の駆動装置とは異なり、第２回転電機５が配置されない。このため、仮に車両用駆動装置１が搭載される車両に、例えばステアリングシャフトやブレーキサーボ等の設置物ＯＢ（図２を参照）が存在していても、当該設置物ＯＢとの干渉を回避することができる。すなわち、車両搭載性に優れた車両用駆動装置１を実現することができる。 In particular, in the present embodiment, by arranging the first rotary electric machine 4 on a shaft separate from the distribution differential gear mechanism 3, the distribution differential gear mechanism 3 can be used while suppressing the overall increase in size of the vehicle drive device 1. On the other hand, the second rotary electric machine 5 can be arranged on the side opposite to the output differential gear mechanism 7. As a result, unlike the conventional drive device, the space above the output differential gear mechanism 7 in the vertical direction V and on the second side H2 in the horizontal direction with respect to the counter gear mechanism 6 is the first. The two-turn electric machine 5 is not arranged. Therefore, even if the vehicle on which the vehicle drive device 1 is mounted has an installation object OB (see FIG. 2) such as a steering shaft or a brake servo, interference with the installation object OB is avoided. be able to. That is, it is possible to realize a vehicle drive device 1 having excellent vehicle mountability.
　また、本実施形態では、第１回転電機４が鉛直方向Ｖの下方側に配置され、カウンタギヤ機構６は鉛直方向Ｖの上方側に配置されている。このため、ケース９の下部に油溜まりが形成される場合であっても、第１カウンタギヤ６１や第２カウンタギヤ６２は油溜まり内の油を攪拌しない。油溜まり内には第１回転電機４の一部が浸るが、第１ロータ４２の回転に伴う油の攪拌は第１ロータ４２の表面で生じる分だけであり、最小限に留まる。よって、当該油の攪拌（掻き上げ）に伴う抵抗を小さく抑えることができ、エネルギ効率を向上させることができる。 Further, in the present embodiment, the first rotary electric machine 4 is arranged on the lower side of the vertical direction V, and the counter gear mechanism 6 is arranged on the upper side of the vertical direction V. Therefore, even when an oil sump is formed in the lower part of the case 9, the first counter gear 61 and the second counter gear 62 do not agitate the oil in the oil sump. A part of the first rotary electric machine 4 is immersed in the oil sump, but the agitation of the oil accompanying the rotation of the first rotor 42 is only the amount generated on the surface of the first rotor 42, and is kept to a minimum. Therefore, the resistance associated with the stirring (raising) of the oil can be suppressed to a small value, and the energy efficiency can be improved.
〔第２実施形態〕
　車両用駆動装置の第２実施形態について、図面を参照して説明する。本実施形態の車両用駆動装置１は、軸方向視での分配用差動歯車機構３、第１回転電機４、第２回転電機５、カウンタギヤ機構６、及び出力用差動歯車機構７の位置関係が第１実施形態とは異なっている。以下、本実施形態の車両用駆動装置１について、主に第１実施形態との相違点について説明する。なお、特に明記しない点に関しては、第１実施形態と同様であり、同一の符号を付して詳細な説明は省略する。 [Second Embodiment]
A second embodiment of the vehicle drive device will be described with reference to the drawings. The vehicle drive device 1 of the present embodiment is a distribution differential gear mechanism 3, a first rotary electric machine 4, a second rotary electric machine 5, a counter gear mechanism 6, and an output differential gear mechanism 7 in an axial view. The positional relationship is different from that of the first embodiment. Hereinafter, the vehicle drive device 1 of the present embodiment will be mainly described as being different from the first embodiment. It should be noted that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof will be omitted.
　図３に示すように、第１軸Ｘ１を包含する鉛直面である第１仮想平面Ｐ１に対して、第３軸Ｘ３と第４軸Ｘ４と第５軸Ｘ５とが同じ側に配置されている。そして、第１仮想平面Ｐ１に対して、第３軸Ｘ３、第４軸Ｘ４、及び第５軸Ｘ５と、第２軸Ｘ２とが両側に分かれて配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４及び第３軸Ｘ３を回転軸心とする第２回転電機５は、それぞれの配置領域が第１仮想平面Ｐ１を含むように配置されている。第４軸Ｘ４を回転軸心とするカウンタギヤ機構６及び第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、その全体が第１仮想平面Ｐ１に対して水平方向Ｈの他方側である水平方向第２側Ｈ２（本例では車両前後方向の後ろ側）に位置するように配置されている。 As shown in FIG. 3, the third axis X3, the fourth axis X4, and the fifth axis X5 are arranged on the same side with respect to the first virtual plane P1 which is a vertical plane including the first axis X1. .. The third axis X3, the fourth axis X4, the fifth axis X5, and the second axis X2 are separately arranged on both sides of the first virtual plane P1. Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis and the second rotary electric machine 5 having the third axis X3 as the rotation axis are arranged so that their respective arrangement areas include the first virtual plane P1. Has been done. The counter gear mechanism 6 having the fourth axis X4 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all in the horizontal direction H with respect to the first virtual plane P1. It is arranged so as to be located on the second side H2 in the horizontal direction (rear side in the front-rear direction of the vehicle in this example).
　第１軸Ｘ１を包含する水平面である第２仮想平面Ｐ２に対して、第２軸Ｘ２と第４軸Ｘ４と第５軸Ｘ５とが同じ側（本例では鉛直方向Ｖの下方側）に配置され、それとは反対側（本例では鉛直方向Ｖの上方側）に第３軸Ｘ３が配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４及び第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、それぞれの配置領域（より具体的には、上方側の配置領域）が第２仮想平面Ｐ２を含むように配置されている。第３軸Ｘ３を回転軸心とする第２回転電機５は、その配置領域（より具体的には、下方側の配置領域）が第２仮想平面Ｐ２を含むように配置されている。第４軸Ｘ４を回転軸心とするカウンタギヤ機構６は、その全体が第２仮想平面Ｐ２に対して鉛直方向Ｖの下方側に位置するように配置されている。 The second axis X2, the fourth axis X4, and the fifth axis X5 are arranged on the same side (lower side of the vertical direction V in this example) with respect to the second virtual plane P2 which is a horizontal plane including the first axis X1. The third axis X3 is arranged on the opposite side (upper side of the vertical direction V in this example). Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis have their respective arrangement regions (more specifically, the upper side). The arrangement area) is arranged so as to include the second virtual plane P2. The second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that its arrangement area (more specifically, the arrangement area on the lower side) includes the second virtual plane P2. The counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located below the vertical direction V with respect to the second virtual plane P2.
　第１軸Ｘ１と第５軸Ｘ５とを包含する仮想平面である第３仮想平面Ｐ３に対して、第２軸Ｘ２と第４軸Ｘ４とが同じ側に配置されている。そして、第３仮想平面Ｐ３に対して、第２軸Ｘ２及び第４軸Ｘ４と、第３軸Ｘ３とが両側に分かれて配置されている。また、第３軸Ｘ３を回転軸心とする第２回転電機５は、その全体が第３仮想平面Ｐ３に対して上方側に位置するように配置されている。第２軸Ｘ２を回転軸心とする第１回転電機４は、その配置領域が第３仮想平面Ｐ３と接するように配置されている。第４軸Ｘ４を回転軸心とするカウンタギヤ機構６は、その全体が第３仮想平面Ｐ３に対して下方側に位置するように配置されている。 The second axis X2 and the fourth axis X4 are arranged on the same side with respect to the third virtual plane P3 which is a virtual plane including the first axis X1 and the fifth axis X5. The second axis X2, the fourth axis X4, and the third axis X3 are separately arranged on both sides of the third virtual plane P3. Further, the second rotary electric machine 5 having the third axis X3 as the rotation axis is arranged so that the entire second rotary electric machine 5 is located on the upper side with respect to the third virtual plane P3. The first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that its arrangement area is in contact with the third virtual plane P3. The counter gear mechanism 6 having the fourth axis X4 as the rotation axis is arranged so that the entire counter gear mechanism 6 is located on the lower side with respect to the third virtual plane P3.
　第１軸Ｘ１と第４軸Ｘ４とを包含する仮想平面である第４仮想平面Ｐ４に対して、第３軸Ｘ３と第５軸Ｘ５とが同じ側に配置されている。そして、第４仮想平面Ｐ４に対して、第３軸Ｘ３及び第５軸Ｘ５と、第２軸Ｘ２とが両側に分かれて配置されている。また、第２軸Ｘ２を回転軸心とする第１回転電機４は、その全体が第４仮想平面Ｐ４に対して下方側に位置するように配置されている。第３軸Ｘ３を回転軸心とする第２回転電機５及び第５軸Ｘ５を回転軸心とする出力用差動歯車機構７は、それぞれの全体が第４仮想平面Ｐ４に対して上方側に位置するように配置されている。 The third axis X3 and the fifth axis X5 are arranged on the same side with respect to the fourth virtual plane P4 which is a virtual plane including the first axis X1 and the fourth axis X4. The third axis X3, the fifth axis X5, and the second axis X2 are separately arranged on both sides of the fourth virtual plane P4. Further, the first rotary electric machine 4 having the second axis X2 as the rotation axis is arranged so that the entire first rotary electric machine 4 is located on the lower side with respect to the fourth virtual plane P4. The second rotary electric machine 5 having the third axis X3 as the rotation axis and the output differential gear mechanism 7 having the fifth axis X5 as the rotation axis are all located upward with respect to the fourth virtual plane P4. It is arranged so that it is located.
　本実施形態でも、例えばステアリングシャフトやブレーキサーボ等の設置物ＯＢとの干渉を回避することができ、車両搭載性を向上させることができる。また、本実施形態では、第３軸Ｘ３が水平方向Ｈにおける第２軸Ｘ２と第５軸Ｘ５との間に配置され、第２回転電機５が水平方向Ｈにおいて分配用差動歯車機構３と出力用差動歯車機構７とを合わせた領域内に収まるので、水平方向Ｈ（車両前後方向）に小型化することができる。さらに、第２回転電機５に比べてやや小型の第１回転電機４が水平方向第１側Ｈ１（本例では車両前後方向の前側）に位置するように配置されているので、車両への搭載時に、車両のクラッシャブルゾーンにスペースを確保しやすい。よって、安全性を高めることができる。 Also in this embodiment, it is possible to avoid interference with the installed object OB such as the steering shaft and the brake servo, and it is possible to improve the vehicle mountability. Further, in the present embodiment, the third axis X3 is arranged between the second axis X2 and the fifth axis X5 in the horizontal direction H, and the second rotary electric machine 5 is arranged with the distribution differential gear mechanism 3 in the horizontal direction H. Since it fits within the area including the output differential gear mechanism 7, it can be miniaturized in the horizontal direction H (vehicle front-rear direction). Further, since the first rotary electric machine 4 which is slightly smaller than the second rotary electric machine 5 is arranged so as to be located on the first side H1 in the horizontal direction (in this example, the front side in the front-rear direction of the vehicle), it is mounted on the vehicle. Sometimes it is easy to secure space in the crushable zone of the vehicle. Therefore, safety can be enhanced.
〔その他の実施形態〕
（１）上記の各実施形態では、第１回転電機４が分配用差動歯車機構３の下方（斜め下方を含む）に配置され、第２回転電機５が分配用差動歯車機構３の上方（斜め上方を含む）に配置された構成を例として説明した。しかし、そのような構成に限定されることなく、第１回転電機４と第２回転電機５とは、これらが互いに干渉せず、出力用差動歯車機構７やカウンタギヤ機構６とも干渉しない位置関係であれば、第１軸Ｘ１の周囲の任意の位置にそれぞれ配置することができる。例えば、第１回転電機４と第２回転電機５との位置を入れ替え、第２回転電機５を分配用差動歯車機構３の下方に配置し、第１回転電機４を分配用差動歯車機構３の上方に配置しても良い。 [Other Embodiments]
(1) In each of the above embodiments, the first rotary electric machine 4 is arranged below the distribution differential gear mechanism 3 (including diagonally downward), and the second rotary electric machine 5 is above the distribution differential gear mechanism 3. The configuration arranged diagonally above (including diagonally above) has been described as an example. However, the position is not limited to such a configuration, and the first rotary electric machine 4 and the second rotary electric machine 5 do not interfere with each other and do not interfere with the output differential gear mechanism 7 or the counter gear mechanism 6. If it is related, they can be arranged at arbitrary positions around the first axis X1. For example, the positions of the first rotary electric machine 4 and the second rotary electric machine 5 are exchanged, the second rotary electric machine 5 is arranged below the distribution differential gear mechanism 3, and the first rotary electric machine 4 is a distribution differential gear mechanism. It may be placed above 3.
（２）上記の各実施形態では、第２仮想平面Ｐ２に対して第３軸Ｘ３と第５軸Ｘ５とが両側に分かれて配置されている構成を例として説明した。しかし、そのような構成に限定されることなく、第２仮想平面Ｐ２に対して第３軸Ｘ３と第５軸Ｘ５とが同じ側に配置されても良い。 (2) In each of the above embodiments, a configuration in which the third axis X3 and the fifth axis X5 are separately arranged on both sides with respect to the second virtual plane P2 has been described as an example. However, without being limited to such a configuration, the third axis X3 and the fifth axis X5 may be arranged on the same side with respect to the second virtual plane P2.
（３）上記の各実施形態では、第４仮想平面Ｐ４に対して第２軸Ｘ２と第３軸Ｘ３とが両側に分かれて配置されている構成を例として説明した。しかし、そのような構成に限定されることなく、第４仮想平面Ｐ４に対して第２軸Ｘ２と第３軸Ｘ３とが同じ側に配置されても良い。 (3) In each of the above embodiments, a configuration in which the second axis X2 and the third axis X3 are separately arranged on both sides with respect to the fourth virtual plane P4 has been described as an example. However, without being limited to such a configuration, the second axis X2 and the third axis X3 may be arranged on the same side with respect to the fourth virtual plane P4.
（４）上記の各実施形態では、第１回転電機４の第１ステータ４１と第２回転電機５の第２ステータ５１とで軸方向Ｌの配置領域が重なっている構成を例として説明した。しかし、そのような構成に限定されることなく、第１ステータ４１と第２ステータ５１とが軸方向Ｌの異なる位置に配置されても良い。 (4) In each of the above embodiments, the configuration in which the first stator 41 of the first rotary electric machine 4 and the second stator 51 of the second rotary electric machine 5 overlap in the arrangement region in the axial direction L has been described as an example. However, without being limited to such a configuration, the first stator 41 and the second stator 51 may be arranged at different positions in the axial direction L.
（５）上記の各実施形態では、ギヤ形成部材３８に形成された第３回転要素３３（リングギヤＲ）と外周ギヤ３９とが、径方向視で重複する構成を例として説明した。しかし、そのような構成に限定されることなく、第３回転要素３３（リングギヤＲ）と外周ギヤ３９とが軸方向Ｌの異なる位置に配置されても良い。 (5) In each of the above embodiments, the configuration in which the third rotating element 33 (ring gear R) formed on the gear forming member 38 and the outer peripheral gear 39 overlap in the radial direction has been described as an example. However, without being limited to such a configuration, the third rotating element 33 (ring gear R) and the outer peripheral gear 39 may be arranged at different positions in the axial direction L.
（６）上記の各実施形態では、第１ロータ４２と一体回転する第１出力ギヤ４４が第１回転要素３１（サンギヤＳ）と一体回転する連結ギヤ３６に噛み合うことで、第１回転電機４が分配用差動歯車機構３と別軸に配置された構成を例として説明した。しかし、そのような構成に限定されることなく、例えば第１出力ギヤ４４と連結ギヤ３６との間にアイドラギヤやカウンタギヤ機構等の他のギヤ機構が設けられても良い。或いは、例えばベルト機構やチェーン機構等の他の機構を用いて、第１回転電機４と分配用差動歯車機構３とを別軸に配置しても良い。 (6) In each of the above embodiments, the first output gear 44 that rotates integrally with the first rotor 42 meshes with the connecting gear 36 that rotates integrally with the first rotating element 31 (sun gear S), so that the first rotating electric machine 4 Has been described as an example of a configuration in which the differential gear mechanism 3 for distribution is arranged on a different shaft from the mechanism 3. However, without being limited to such a configuration, for example, another gear mechanism such as an idler gear or a counter gear mechanism may be provided between the first output gear 44 and the connecting gear 36. Alternatively, the first rotary electric machine 4 and the distribution differential gear mechanism 3 may be arranged on different axes by using another mechanism such as a belt mechanism or a chain mechanism.
（７）上記の各実施形態では、第２ロータ５２と一体回転する第２出力ギヤ５４が第３回転要素３３（リングギヤＲ）と一体回転する外周ギヤ３９に噛み合うことで、第２回転電機５が分配用差動歯車機構３と別軸に配置された構成を例として説明した。しかし、そのような構成に限定されることなく、例えば第２出力ギヤ５４と外周ギヤ３９との間にアイドラギヤやカウンタギヤ機構等の他のギヤ機構が設けられても良い。或いは、例えばベルト機構やチェーン機構等の他の機構を用いて、第２回転電機５と分配用差動歯車機構３とを別軸に配置しても良い。 (7) In each of the above embodiments, the second output gear 54 that rotates integrally with the second rotor 52 meshes with the outer peripheral gear 39 that rotates integrally with the third rotating element 33 (ring gear R), so that the second rotating electric machine 5 Has been described as an example of a configuration in which the differential gear mechanism 3 for distribution is arranged on a different shaft from the mechanism 3. However, without being limited to such a configuration, for example, another gear mechanism such as an idler gear or a counter gear mechanism may be provided between the second output gear 54 and the outer peripheral gear 39. Alternatively, the second rotary electric machine 5 and the distribution differential gear mechanism 3 may be arranged on different axes by using another mechanism such as a belt mechanism or a chain mechanism.
（８）上記の各実施形態では、カウンタギヤ機構６において第２カウンタギヤ６２が第１カウンタギヤ６１に対して軸方向第２側Ｌ２に配置されている構成を例として説明した。
しかし、そのような構成に限定されることなく、第２カウンタギヤ６２が第１カウンタギヤ６１に対して軸方向第１側Ｌ１に配置されても良い。 (8) In each of the above embodiments, the configuration in which the second counter gear 62 is arranged on the second side L2 in the axial direction with respect to the first counter gear 61 in the counter gear mechanism 6 has been described as an example.
However, the second counter gear 62 may be arranged on the first side L1 in the axial direction with respect to the first counter gear 61 without being limited to such a configuration.
（９）上記の各実施形態では、分配用差動歯車機構３がシングルピニオン型の遊星歯車機構構成で構成されている例について説明した。しかし、そのような構成に限定されることなく、分配用差動歯車機構３をダブルピニオン型の遊星歯車機構で構成しても良い。或いは、分配用差動歯車機構３を複数の遊星歯車機構を組み合わせた機構で構成しても良い。 (9) In each of the above embodiments, an example in which the distribution differential gear mechanism 3 is configured with a single pinion type planetary gear mechanism configuration has been described. However, the distribution differential gear mechanism 3 may be configured by a double pinion type planetary gear mechanism without being limited to such a configuration. Alternatively, the distribution differential gear mechanism 3 may be configured by a mechanism that combines a plurality of planetary gear mechanisms.
（１０）上述した各実施形態（上記の各実施形態及びその他の実施形態を含む；以下同様）で開示される構成は、矛盾が生じない限り、他の実施形態で開示される構成と組み合わせて適用することも可能である。その他の構成に関しても、本明細書において開示された実施形態は全ての点で例示であって、本開示の趣旨を逸脱しない範囲内で適宜改変することが可能である。 (10) The configurations disclosed in each of the above-described embodiments (including the above-mentioned embodiments and other embodiments; the same shall apply hereinafter) shall be combined with the configurations disclosed in the other embodiments as long as there is no contradiction. It is also possible to apply. As for other configurations, the embodiments disclosed in the present specification are examples in all respects, and can be appropriately modified without departing from the spirit of the present disclosure.
〔実施形態の概要〕
　以上をまとめると、本開示に係る車両用駆動装置は、好適には、以下の各構成を備える。 [Outline of Embodiment]
Summarizing the above, the vehicle drive device according to the present disclosure preferably has the following configurations.
　車両用駆動装置（１）であって、
　内燃機関（ＥＧ）に駆動連結される入力部材（２）と、
　第１回転電機（４）と、
　第２回転電機（５）と、
　それぞれ車輪（Ｗ）に駆動連結される一対の出力部材（８）と、
　入力される回転を一対の前記出力部材（８）に分配する出力用差動歯車機構（７）と、
　前記第１回転電機（４）に駆動連結される第１回転要素（３１）、前記入力部材（２）に駆動連結される第２回転要素（３２）、並びに前記第２回転電機（５）及び前記出力用差動歯車機構（７）に駆動連結される第３回転要素（３３）を有する分配用差動歯車機構（３）と、を備え、
　前記入力部材（２）が前記分配用差動歯車機構（３）と同軸に配置され、
　前記第１回転電機（４）が前記分配用差動歯車機構（３）と別軸に配置され、
　前記第２回転電機（５）及び前記出力用差動歯車機構（７）が、それぞれ、前記第１回転電機（４）及び前記分配用差動歯車機構（３）と別軸に配置されている。 Vehicle drive device (1)
The input member (2) that is driven and connected to the internal combustion engine (EG),
1st rotary electric machine (4) and
2nd rotary electric machine (5) and
A pair of output members (8) that are driven and connected to the wheels (W), respectively.
An output differential gear mechanism (7) that distributes the input rotation to the pair of output members (8).
The first rotating element (31) that is driven and connected to the first rotating electric machine (4), the second rotating element (32) that is driven and connected to the input member (2), and the second rotating electric machine (5) and A distribution differential gear mechanism (3) having a third rotating element (33) that is driven and connected to the output differential gear mechanism (7) is provided.
The input member (2) is arranged coaxially with the distribution differential gear mechanism (3).
The first rotary electric machine (4) is arranged on a shaft separate from the distribution differential gear mechanism (3).
The second rotary electric machine (5) and the output differential gear mechanism (7) are arranged on separate axes from the first rotary electric machine (4) and the distribution differential gear mechanism (3), respectively. ..
　この構成によれば、同軸に配置される入力部材（２）及び分配用差動歯車機構（３）に対して第１回転電機（４）が別軸に配置されるので、第１回転電機（４）の配置自由度が高まる。これにより、第２回転電機（５）の配置位置の制約が緩和されて、第２回転電機（５）の配置自由度も高まる。従って、出力用差動歯車機構（７）の配置も含めて、車両用駆動装置（１）を構成する各部品の配置自由度が高まる。よって、車両用駆動装置（１）の外形に関する制約を緩和することができ、車両搭載性に優れた車両用駆動装置（１）を実現することができる。 According to this configuration, the first rotary electric machine (4) is arranged on a different axis from the input member (2) and the differential gear mechanism (3) arranged coaxially, so that the first rotary electric machine ( 4) The degree of freedom of placement is increased. As a result, the restriction on the arrangement position of the second rotating electric machine (5) is relaxed, and the degree of freedom in the arrangement of the second rotating electric machine (5) is increased. Therefore, the degree of freedom in arranging each component constituting the vehicle drive device (1) is increased, including the arrangement of the output differential gear mechanism (7). Therefore, the restrictions on the outer shape of the vehicle drive device (1) can be relaxed, and the vehicle drive device (1) having excellent vehicle mountability can be realized.
　一態様として、
　前記分配用差動歯車機構（３）は、前記第１回転要素（３１）としてのサンギヤ（Ｓ）、前記第２回転要素（３２）としてのキャリヤ（Ｃ）、及び前記第３回転要素（３３）としてのリングギヤ（Ｒ）を備える、シングルピニオン型の遊星歯車機構であることが好ましい。 As one aspect
The distribution differential gear mechanism (3) includes a sun gear (S) as the first rotating element (31), a carrier (C) as the second rotating element (32), and the third rotating element (33). ), It is preferable that the planetary gear mechanism is a single pinion type.
　この構成によれば、入力部材（２）に入力される内燃機関（ＥＧ）の駆動力の一部を利用して第１回転電機（４）に発電させつつ他の一部を車輪（Ｗ）側に伝達して車両を走行させる、いわゆるスプリットハイブリッドモードを実現することができる。そして、そのようなスプリットハイブリッドモードを実現可能な車両用駆動装置（１）において、車両搭載性を向上させることができる。 According to this configuration, a part of the driving force of the internal combustion engine (EG) input to the input member (2) is used to generate electricity in the first rotary electric machine (4), and the other part is used by the wheels (W). It is possible to realize a so-called split hybrid mode in which the vehicle is transmitted to the side and the vehicle is driven. Then, in the vehicle drive device (1) capable of realizing such a split hybrid mode, the vehicle mountability can be improved.
　一態様として、
　前記第３回転要素（３３）と前記出力用差動歯車機構（７）との間の動力伝達経路に設けられたカウンタギヤ機構（６）を備え、
　軸方向視で、前記入力部材（２）の回転軸心（Ｘ１）と前記出力用差動歯車機構（７）の回転軸心（Ｘ５）とを包含する仮想平面（Ｐ３）に対して、前記第１回転電機（４）及び第２回転電機（５）のうちのいずれか一方の回転軸心（Ｘ２，Ｘ３）と前記カウンタギヤ機構（６）の回転軸心（Ｘ４）とが両側に分かれて配置されていることが好ましい。 As one aspect
A counter gear mechanism (6) provided in a power transmission path between the third rotating element (33) and the output differential gear mechanism (7) is provided.
With respect to the virtual plane (P3) including the rotation axis (X1) of the input member (2) and the rotation axis (X5) of the output differential gear mechanism (7) in the axial direction. The rotation axis (X2, X3) of either one of the first rotary electric machine (4) and the second rotary electric machine (5) and the rotation axis (X4) of the counter gear mechanism (6) are divided into both sides. It is preferable that they are arranged.
　この構成によれば、分配用差動歯車機構（３）の外形と出力用差動歯車機構（７）の外形とによって形成される２つのＶ字状の空間を有効活用して、第１回転電機（４）及び第２回転電機（５）のうちのいずれか一方とカウンタギヤ機構（６）とをそれぞれ配置することができる。よって、装置全体の小型化を図ることができる。 According to this configuration, the first rotation makes effective use of the two V-shaped spaces formed by the outer shape of the distribution differential gear mechanism (3) and the outer shape of the output differential gear mechanism (7). One of the electric machine (4) and the second rotating electric machine (5) and the counter gear mechanism (6) can be arranged respectively. Therefore, the size of the entire device can be reduced.
　一態様として、
　前記第１回転電機（４）及び第２回転電機（５）のうちのいずれか一方が前記カウンタギヤ機構（６）よりも下側に配置されていることが好ましい。 As one aspect
It is preferable that either one of the first rotary electric machine (4) and the second rotary electric machine (5) is arranged below the counter gear mechanism (6).
　この構成によれば、例えば車両用駆動装置（１）の下部領域に油溜まりが形成される場合において、カウンタギヤ機構（６）とは異なり回転する“歯”を有さない第１回転電機（４）及び第２回転電機（５）のうちのいずれか一方を下方に配置することで、油の掻き上げ量を少なく抑えることができる。よって、車両用駆動装置（１）のエネルギ効率を向上させることができる。 According to this configuration, for example, when an oil sump is formed in the lower region of the vehicle drive device (1), unlike the counter gear mechanism (6), the first rotary electric machine having no rotating "teeth" ( By arranging either one of 4) and the second rotary electric machine (5) below, the amount of oil scraped up can be suppressed to a small level. Therefore, the energy efficiency of the vehicle drive device (1) can be improved.
　一態様として、
　軸方向（Ｌ）において、前記カウンタギヤ機構（６）が前記出力用差動歯車機構（７）の入力ギヤ（７１）よりも前記内燃機関（ＥＧ）側に配置されていることが好ましい。 As one aspect
In the axial direction (L), it is preferable that the counter gear mechanism (6) is arranged closer to the internal combustion engine (EG) than the input gear (71) of the output differential gear mechanism (7).
　この構成によれば、カウンタギヤ機構（６）に対して軸方向（Ｌ）における内燃機関（ＥＧ）側とは反対側にスペースを確保しやすい。よって、車両への搭載時に、車両用駆動装置（１）の周囲に例えばステアリングシャフトやブレーキサーボ等の設置物（ＯＢ）が存在していても、当該設置物（ＯＢ）との干渉を回避しやすくなる。 According to this configuration, it is easy to secure a space on the side opposite to the internal combustion engine (EG) side in the axial direction (L) with respect to the counter gear mechanism (6). Therefore, even if an installation object (OB) such as a steering shaft or a brake servo exists around the vehicle drive device (1) at the time of mounting on the vehicle, interference with the installation object (OB) is avoided. It will be easier.
　一態様として、
　車両搭載状態で、前記第２回転電機（５）が前記入力部材（２）よりも車両後方側に配置され、前記第１回転電機（４）が前記入力部材（２）よりも車両前方側に配置されることが好ましい。 As one aspect
In the vehicle-mounted state, the second rotary electric machine (5) is arranged on the rear side of the vehicle with respect to the input member (2), and the first rotary electric machine (4) is on the front side of the vehicle with respect to the input member (2). It is preferable to be arranged.
　この構成によれば、例えば第１回転電機（４）として第２回転電機（５）よりも径方向に小型の回転電機を用いる場合に、相対的に小径の第１回転電機（４）が配置される車両前方側をコンパクトに形成できる。よって、車両への搭載時に、車両のクラッシャブルゾーンにスペースを確保しやすく、安全性を高めることができる。 According to this configuration, for example, when a rotary electric machine smaller in the radial direction than the second rotary electric machine (5) is used as the first rotary electric machine (4), the first rotary electric machine (4) having a relatively small diameter is arranged. The front side of the vehicle can be compactly formed. Therefore, when the vehicle is mounted on the vehicle, it is easy to secure a space in the crushable zone of the vehicle, and the safety can be improved.
　一態様として、
　前記第１回転電機（４）の第１ロータ（４２）と一体回転する第１ギヤ（４４）と、
　前記第１回転要素（３１）と一体回転する第２ギヤ（３６）と、を備え、
　前記第１ギヤ（４４）と前記第２ギヤ（３６）とが噛み合っていることが好ましい。 As one aspect
The first gear (44) that rotates integrally with the first rotor (42) of the first rotary electric machine (4), and
A second gear (36) that rotates integrally with the first rotating element (31) is provided.
It is preferable that the first gear (44) and the second gear (36) are in mesh with each other.
　この構成によれば、第１ギヤ（４４）の半径と第２ギヤ（３６）の半径との合計長さの分、第１回転電機（４）の回転軸心を分配用差動歯車機構（３）の回転軸心からずらして配置することができる。よって、第１回転電機（４）と分配用差動歯車機構（３）とを簡単にかつ確実に別軸に配置することができる。 According to this configuration, the rotation axis of the first rotary electric machine (4) is distributed by the total length of the radius of the first gear (44) and the radius of the second gear (36). It can be arranged so as to be offset from the rotation axis of 3). Therefore, the first rotary electric machine (4) and the distribution differential gear mechanism (3) can be easily and surely arranged on different shafts.
　一態様として、
　前記第２回転電機（５）の第２ロータ（５２）と一体回転する第３ギヤ（５４）と、
　前記第３回転要素（３３）と一体回転する第４ギヤ（３９）と、を備え、
　前記第３ギヤ（５４）と前記第４ギヤ（３９）とが噛み合っていることが好ましい。 As one aspect
A third gear (54) that rotates integrally with the second rotor (52) of the second rotary electric machine (5), and
A fourth gear (39) that rotates integrally with the third rotating element (33) is provided.
It is preferable that the third gear (54) and the fourth gear (39) are in mesh with each other.
　この構成によれば、第３ギヤ（５４）の半径と第４ギヤ（３９）の半径との合計長さの分、第２回転電機（５）の回転軸心を分配用差動歯車機構（３）の回転軸心からずらして配置することができる。よって、第２回転電機（５）と分配用差動歯車機構（３）とを簡単にかつ確実に別軸に配置することができる。 According to this configuration, the rotation axis of the second rotary electric machine (5) is distributed by the total length of the radius of the third gear (54) and the radius of the fourth gear (39). It can be arranged so as to be offset from the rotation axis of 3). Therefore, the second rotary electric machine (5) and the distribution differential gear mechanism (3) can be easily and surely arranged on different shafts.
　一態様として、
　径方向視で、前記第３回転要素（３３）と前記第４ギヤ（３９）とが重複して配置されていることが好ましい。 As one aspect
It is preferable that the third rotating element (33) and the fourth gear (39) are arranged so as to overlap each other in the radial direction.
　この構成によれば、軸方向（Ｌ）において第３回転要素（３３）と第４ギヤ（３９）とが互いに異なる領域に配置される構成に比べて、第３回転要素（３３）と第４ギヤ（３９）とが占める軸方向（Ｌ）領域を小さく抑えることができる。その結果、装置全体の軸方向（Ｌ）長さを短く抑えることができる。 According to this configuration, the third rotating element (33) and the fourth gear (33) are arranged in different regions in the axial direction (L) than the third rotating element (33) and the fourth gear (39). The axial (L) region occupied by the gear (39) can be kept small. As a result, the axial (L) length of the entire device can be kept short.
　一態様として、
　前記第１回転電機（４）の第１ステータ（４１）と前記第２回転電機（５）の第２ステータ（５１）とで、軸方向（Ｌ）の配置領域が重なっており、
　軸方向視で前記第１ステータ（４１）と前記第２ステータ（５１）とが重複していないことが好ましい。 As one aspect
The first stator (41) of the first rotary electric machine (4) and the second stator (51) of the second rotary electric machine (5) overlap the arrangement regions in the axial direction (L).
It is preferable that the first stator (41) and the second stator (51) do not overlap in the axial direction.
　この構成によれば、第１ステータ（４１）と第２ステータ（５１）とで軸方向（Ｌ）の配置領域が重なる分、装置全体の軸方向（Ｌ）長さを短く抑えることができる。 According to this configuration, the axial (L) length of the entire apparatus can be shortened by the amount that the axial (L) arrangement regions overlap between the first stator (41) and the second stator (51).
　一態様として、
　軸方向視で、前記入力部材（２）の回転軸心（Ｘ１）を包含する鉛直面（Ｐ１）に対して、前記第２回転電機（５）の回転軸心（Ｘ３）と前記出力用差動歯車機構（７）の回転軸心（Ｘ５）とが両側に分かれて配置されていることが好ましい。 As one aspect
In axial view, the difference between the rotation axis (X3) of the second rotary electric machine (5) and the output with respect to the vertical surface (P1) including the rotation axis (X1) of the input member (2). It is preferable that the rotation axis (X5) of the moving gear mechanism (7) is separately arranged on both sides.
　この構成によれば、出力用差動歯車機構（７）と第２回転電機（５）とが水平方向において比較的離れて配置されるので、それらが上下に干渉しにくい。よって、装置全体の上下方向長さを短く抑える（高さを低く抑える）ことができる。 According to this configuration, the output differential gear mechanism (7) and the second rotary electric machine (5) are arranged relatively apart in the horizontal direction, so that they do not easily interfere with each other in the vertical direction. Therefore, the vertical length of the entire device can be kept short (the height can be kept low).
　一態様として、
　前記第３回転要素（３３）と前記出力用差動歯車機構（７）との間の動力伝達経路に設けられたカウンタギヤ機構（６）を備え、
　軸方向視で、前記入力部材（２）の回転軸心（Ｘ１）と前記カウンタギヤ機構（６）の回転軸心（Ｘ４）とを包含する仮想平面（Ｐ４）に対して、前記第１回転電機（４）の回転軸心（Ｘ２）と前記第２回転電機（５）の回転軸心（Ｘ３）とが両側に分かれて配置されていることが好ましい。 As one aspect
A counter gear mechanism (6) provided in a power transmission path between the third rotating element (33) and the output differential gear mechanism (7) is provided.
The first rotation with respect to the virtual plane (P4) including the rotation axis (X1) of the input member (2) and the rotation axis (X4) of the counter gear mechanism (6) in the axial view. It is preferable that the rotation axis (X2) of the electric machine (4) and the rotation axis (X3) of the second rotary electric machine (5) are separately arranged on both sides.
　この構成によれば、比較的大型の部品である第１回転電機（４）と第２回転電機（５）とを比較的離して配置することができる。よって、第１回転電機（４）と第２回転電機（５）とが干渉することを抑制しつつ、装置全体の小型化を図ることができる。 According to this configuration, the first rotating electric machine (4) and the second rotating electric machine (5), which are relatively large parts, can be arranged relatively apart from each other. Therefore, it is possible to reduce the size of the entire device while suppressing interference between the first rotary electric machine (4) and the second rotary electric machine (5).
　本開示に係る車両用駆動装置は、上述した各効果のうち、少なくとも１つを奏することができれば良い。 The vehicle drive device according to the present disclosure may be capable of exerting at least one of the above-mentioned effects.
１　　　　車両用駆動装置
２　　　　入力部材
３　　　　分配用差動歯車装置
４　　　　第１回転電機
５　　　　第２回転電機
６　　　　カウンタギヤ機構
７　　　　出力用差動歯車装置
８　　　　出力部材
３１　　　第１回転要素
３２　　　第２回転要素
３３　　　第３回転要素
３６　　　連結ギヤ（第２ギヤ）
３９　　　外周ギヤ（第４ギヤ）
４１　　　第１ステータ
４２　　　第１ロータ
４３　　　第１ロータ軸
４４　　　第１出力ギヤ（第１ギヤ）
５１　　　第２ステータ
５２　　　第２ロータ
５３　　　第２ロータ軸
５４　　　第２出力ギヤ（第３ギヤ）
ＥＧ　　　内燃機関
Ｗ　　　　車輪
Ｘ１　　　第１軸（入力部材の回転軸心）
Ｘ２　　　第２軸（第１回転電機の回転軸心）
Ｘ３　　　第３軸（第２回転電機の回転軸心）
Ｘ４　　　第４軸（カウンタギヤ機構の回転軸心）
Ｘ５　　　第５軸（出力用差動歯車機構の回転軸心）
Ｐ１　　　第１仮想平面（入力部材の回転軸心を包含する鉛直面）
Ｐ３　　　第３仮想平面（入力部材の回転軸心と出力用差動歯車機構の回転軸心とを包含する仮想平面）
Ｐ４　　　第４仮想平面（入力部材の回転軸心とカウンタギヤ機構の回転軸心とを包含する仮想平面）
Ｌ　　　　軸方向 1 Vehicle drive device 2 Input member 3 Distributing differential gear device 4 1st rotating electric machine 5 2nd rotating electric machine 6 Counter gear mechanism 7 Output differential gear device 8 Output member 31 1st rotating element 32 2nd rotating element 33 3rd rotating element 36 connecting gear (2nd gear)
39 Outer gear (4th gear)
41 1st stator 42 1st rotor 43 1st rotor shaft 44 1st output gear (1st gear)
51 2nd stator 52 2nd rotor 53 2nd rotor shaft 54 2nd output gear (3rd gear)
EG Internal combustion engine W Wheel X1 1st axis (Rotation axis of input member)
X2 2nd axis (rotation axis of 1st rotary electric machine)
X3 3rd axis (rotation axis of 2nd rotary electric machine)
X4 4th axis (rotation axis of counter gear mechanism)
X5 5th axis (rotation axis of differential gear mechanism for output)
P1 1st virtual plane (vertical plane including the axis of rotation of the input member)
P3 Third virtual plane (virtual plane including the rotation axis of the input member and the rotation axis of the output differential gear mechanism)
P4 Fourth virtual plane (virtual plane including the rotation axis of the input member and the rotation axis of the counter gear mechanism)
L-axis direction

Claims (5)

  1. 　内燃機関に駆動連結される入力部材と、
    　第１回転電機と、
    　第２回転電機と、
    　それぞれ車輪に駆動連結される一対の出力部材と、
    　入力される回転を一対の前記出力部材に分配する出力用差動歯車機構と、
    　前記第１回転電機に駆動連結される第１回転要素、前記入力部材に駆動連結される第２回転要素、並びに前記第２回転電機及び前記出力用差動歯車機構に駆動連結される第３回転要素を有する分配用差動歯車機構と、を備え、
    　前記入力部材が前記分配用差動歯車機構と同軸に配置され、
    　前記第１回転電機が前記分配用差動歯車機構と別軸に配置され、
    　前記第２回転電機及び前記出力用差動歯車機構が、それぞれ、前記第１回転電機及び前記分配用差動歯車機構と別軸に配置されている、車両用駆動装置。     Input members that are driven and connected to the internal combustion engine
    With the 1st rotary electric machine
    2nd rotary electric machine and
    A pair of output members that are driven and connected to the wheels, respectively.
    An output differential gear mechanism that distributes the input rotation to the pair of output members,
    The first rotating element that is driven and connected to the first rotating electric machine, the second rotating element that is driven and connected to the input member, and the third rotation that is driven and connected to the second rotating electric machine and the output differential gear mechanism. With a differential gear mechanism for distribution, which has elements,
    The input member is arranged coaxially with the distribution differential gear mechanism.
    The first rotary electric machine is arranged on a shaft separate from the distribution differential gear mechanism.
    A vehicle drive device in which the second rotary electric machine and the output differential gear mechanism are arranged on separate axes from the first rotary electric machine and the distribution differential gear mechanism, respectively.
  2. 　前記分配用差動歯車機構は、前記第１回転要素としてのサンギヤ、前記第２回転要素としてのキャリヤ、及び前記第３回転要素としてのリングギヤを備える、シングルピニオン型の遊星歯車機構である、請求項１に記載の車両用駆動装置。 The differential gear mechanism for distribution is a single pinion type planetary gear mechanism including a sun gear as the first rotating element, a carrier as the second rotating element, and a ring gear as the third rotating element. Item 2. The vehicle drive device according to item 1.
  3. 　前記第３回転要素と前記出力用差動歯車機構との間の動力伝達経路に設けられたカウンタギヤ機構を備え、
    　軸方向視で、前記入力部材の回転軸心と前記出力用差動歯車機構の回転軸心とを包含する仮想平面に対して、前記第１回転電機及び第２回転電機のうちのいずれか一方の回転軸心と前記カウンタギヤ機構の回転軸心とが両側に分かれて配置され、
    　前記第１回転電機及び第２回転電機のうちのいずれか一方が前記カウンタギヤ機構よりも下側に配置されている、請求項１又は２に記載の車両用駆動装置。     A counter gear mechanism provided in a power transmission path between the third rotating element and the output differential gear mechanism is provided.
    One of the first rotary electric machine and the second rotary electric machine with respect to the virtual plane including the rotary axis of the input member and the rotary axis of the output differential gear mechanism in the axial view. The rotation axis of the counter gear mechanism and the rotation axis of the counter gear mechanism are separately arranged on both sides.
    The vehicle drive device according to claim 1 or 2, wherein either one of the first rotary electric machine and the second rotary electric machine is arranged below the counter gear mechanism.
  4. 　軸方向において、前記カウンタギヤ機構が前記出力用差動歯車機構の入力ギヤよりも前記内燃機関側に配置されている、請求項３に記載の車両用駆動装置。 The vehicle drive device according to claim 3, wherein the counter gear mechanism is arranged on the internal combustion engine side of the input gear of the output differential gear mechanism in the axial direction.
  5. 　車両搭載状態で、前記第２回転電機が前記入力部材よりも車両後方側に配置され、前記第１回転電機が前記入力部材よりも車両前方側に配置される、請求項１から４のいずれか一項に記載の車両用駆動装置。 Any of claims 1 to 4, wherein the second rotating electric machine is arranged on the vehicle rear side of the input member and the first rotating electric machine is arranged on the vehicle front side of the input member in the vehicle mounted state. The vehicle drive device according to paragraph 1.
PCT/JP2020/040860 2019-10-31 2020-10-30 Vehicle drive device WO2021085611A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001355727A (en) * 2000-06-12 2001-12-26 Aisin Aw Co Ltd Hybrid drive device
JP2007039029A (en) * 1998-11-16 2007-02-15 Aisin Aw Co Ltd Driving apparatus
JP2016120834A (en) * 2014-12-25 2016-07-07 トヨタ自動車株式会社 Vehicular drive system
JP2017032033A (en) * 2015-07-30 2017-02-09 アイシン・エィ・ダブリュ株式会社 Drive unit for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007039029A (en) * 1998-11-16 2007-02-15 Aisin Aw Co Ltd Driving apparatus
JP2001355727A (en) * 2000-06-12 2001-12-26 Aisin Aw Co Ltd Hybrid drive device
JP2016120834A (en) * 2014-12-25 2016-07-07 トヨタ自動車株式会社 Vehicular drive system
JP2017032033A (en) * 2015-07-30 2017-02-09 アイシン・エィ・ダブリュ株式会社 Drive unit for vehicle

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