JP3716807B2 - Hybrid drive device and FR type vehicle equipped with the hybrid drive device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hybrid drive device and an FR (front engine, rear drive; referred to as FR in this specification) type automobile equipped with the hybrid drive device, and more specifically, two motors (a concept including a generator). The present invention relates to an arrangement structure in which a hybrid drive device of a type (so-called two-motor type) is mounted on an automobile in the form of FR (in this specification, simply referred to as FR, which means front engine and rear drive).
[0002]
[Prior art]
Conventionally, as a hybrid drive device, the output from an engine is distributed to a motor (generally called a generator) and a traveling output side by a planetary gear, and the motor is mainly controlled as a generator, so that the output torque of the planetary gear is reduced. A so-called two-motor type is used in which the torque of other motors (generally called drive motors) is combined with the planetary gear output torque and output to the output shaft if necessary. ) To be put to practical use.
[0003]
The two-motor type hybrid drive device actually provided is mounted on an automobile for FF (front engine, front drive), and the hybrid drive device is also disclosed in, for example, German Patent DE 1980316. In addition, mounting on FR type large passenger cars has also been attempted. An outline of the FR type hybrid drive apparatus is shown in FIG.
[0004]
As shown in FIG. 4, an automobile 1 equipped with a hybrid drive device has an internal combustion engine 5 such as a gasoline engine disposed in front of a vehicle body 2, generally between the front wheels 3 and 3, with its crankshaft in the front-rear direction. Further, the two-motor type hybrid drive device 6 is disposed adjacent to the rear of the engine 5. The hybrid drive device 6 is substantially aligned with the crankshaft in the axial direction, and a first motor (generator) 7, a power distribution planetary gear 9, and a second motor (drive motor) 10 are sequentially arranged from the engine side. Has been placed.
[0005]
In the hybrid drive device 6, an input shaft 12 is connected via a damper device 8 to an output shaft 5a comprising a rear projecting portion of an engine crankshaft, and a first motor is coaxially formed on the outer diameter side of the input shaft. 7 is arranged. The first motor 7 is composed of an AC permanent magnet synchronous type (brushless DC motor), and is rotatably supported with a stator 13 fixed to the case and a predetermined air gap on the inner diameter side of the stator. And a rotor 15.
[0006]
The power distribution planetary gear 9 is composed of a simple planetary gear arranged coaxially with the input shaft 12 and is connected to the rotor 15 and a carrier C1 connected to the input shaft 12 and supporting a plurality of planetary pinions P1. A sun gear S1 and a ring gear R1 serving as a travel output portion. The ring gear R1 is connected to an output shaft 16 extending rearward on the same axis as the input shaft 12.
[0007]
The second motor 10 is a similar brushless DC motor and is a motor larger than the motor 7. The second motor 10 is disposed coaxially with the output shaft 16 on the outer diameter side thereof, and is fixed to the case. And a rotor 19 that is rotatably supported with a predetermined air gap on its inner diameter side. The hybrid drive device 6 is housed in an integral case, and is attached with the front end of the integral case fixed to the rear end surface of the engine 5.
[0008]
The output shaft 16 protrudes from the case and extends further rearward, through a flexible coupling 20 and a known propeller shaft 21 (not shown, but actually includes a universal joint, a center bearing, etc.). It is connected to the differential device 22 and further transmitted from the differential device to the rear wheels 25 and 25 via the left and right drive shafts 23l and 23r.
[0009]
In the FR type automobile 1 equipped with the hybrid drive device 6, the output of the engine 5 is transmitted to the carrier C 1 of the power distribution planetary gear 9 via the damper device 8 and the input shaft 12. In the planetary gear 9, the engine output is distributed and transmitted from the sun gear S1 to the first motor (generator) 7 and from the ring gear 9 to the traveling shaft 16. Here, by controlling the first motor 7, the output torque and rotation to the output shaft 16 are adjusted steplessly and output. When a large torque is required at the time of starting or the like, the second motor (drive motor) 10 is driven, and the motor torque is transmitted to the propeller shaft 21 by assisting the torque of the output shaft 16. Further, it is transmitted to the rear wheel 25 through the differential device 22 and the left and right drive shafts 23l and 23r.
[0010]
The second motor 10 uses the power generated by the first motor 7 as energy, and also uses the energy from the battery stored in the first motor 7 when the generated power is insufficient. When the brake is applied, it functions as a regenerative generator.
[0011]
[Problems to be solved by the invention]
The above-described two-motor type hybrid drive device 6 can achieve excellent effects such as improved fuel efficiency and reduced exhaust gas due to high energy efficiency, but the size of the first motor 7 is defined by the output torque of the engine. The size of the second motor 10 is also defined by the vehicle weight and the required acceleration performance. Accordingly, when applied to a vehicle having a large engine displacement, the FR type is generally used. However, when the first motor 7 and the second motor 10 corresponding to the above requirements are adopted, the outer diameter and axial dimension (product) of the motor are used. In order to satisfy (thickness), it becomes difficult to fit the hybrid drive device 6 housed in the integrated case and attached to the engine 5 in the current automatic transmission arrangement space indicated by the dotted line A in FIG. End up.
[0012]
For this reason, in order to mount the hybrid drive device 6 described above on an FR type vehicle, particularly a vehicle on which a large displacement engine is mounted, a significant change in the vehicle itself, such as a new platform, is required. It is necessary to sacrifice the living (loading) space.
[0013]
Accordingly, the present invention has an object to provide a hybrid drive device that solves the above-described problems by housing the second motor in a motor housing having a structure different from that of the transmission case, and an FR type vehicle equipped with the hybrid drive device. It is what.
[0014]
[Means for Solving the Problems]
The present invention according to claim 1 includes a first motor (7), a planetary gear for power distribution (9), and a second motor (10 ₁ ),
The driving force transmitted to the input shaft (12) is distributed and transmitted to the first motor (7) and the intermediate shaft (32) by the power distribution planetary gear (9), and further distributed to the intermediate shaft. In the hybrid drive device (6 ₁ ), which transmits power to the output shaft and interlocks the second motor (10 ₁ ) with the output shaft (16 ₁ , 16 ₂ ).
The first motor (7), the power distribution planetary gear (9) and the second motor (10 ₁ ) are sequentially arranged in a single axis,
The first motor (7) and the power distribution planetary gear (9) are housed in a transmission case (29),
Storing the second motor (10 ₁ ) in the motor housing (30) outside the transmission case;
The intermediate shaft (32) and the output shaft (16 ₁ ) are connected via a coupling (46).
In the hybrid drive.
[0015]
According to a second aspect of the present invention, the second motor (10 ₁ ) has an axial length structure in which an axial dimension is longer than a diameter dimension.
The hybrid drive apparatus according to claim 1.
[0016]
The present invention according to claim 3 includes a speed reduction planetary gear (11) that decelerates the output of the second motor (10 ₁ ) and interlocks with the output shaft (16 ₂ ).
The speed reduction planetary gear (11) is accommodated in the motor housing (30) side by side in the axial direction with the second motor (10 ₁ ).
It exists in the hybrid drive device of Claim 1 or 2.
[0017]
According to a fourth aspect of the present invention, the stator (17) of the second motor (10 ₁ ) is fixed to the motor housing (30), and the rotor (19) is supported at both ends (42, 43). And the output shaft (16 ₁ , 16 ₂ ) can be rotated by a double-supported structure (45, 47, 49) on the outer side in the axial direction of the support portion (42, 43) of the rotor. To support,
It exists in the hybrid drive device in any one of Claim 1 thru | or 3.
[0018]
The present invention according to claim 5 arranges the internal combustion engine (5) at the front portion of the vehicle body (2) such that the crankshaft is positioned in the front-rear direction of the vehicle body (2),
The hybrid drive device (6 ₁ ) according to any one of claims 1 to 4 is arranged substantially uniaxially with the crankshaft,
The input shaft (12) is connected to the crankshaft (5a) of the internal combustion engine, and the output shaft (16 ₁ , 16 ₂ ) is linked to the rear wheels (25, 25) via the differential device (22). Become
This is in an FR type automobile (1 ₁ ) equipped with a hybrid drive device.
[0019]
According to a sixth aspect of the present invention, the vehicle body (2) has a center housing (40) that extends in the front-rear direction at the center in the width direction and protrudes into a living space,
The motor housing (30) is housed in the center housing.
It exists in the FR type motor vehicle carrying the hybrid drive device of Claim 5.
[0020]
The present invention according to claim 7 connects the output shaft (16 ₂ ) and the differential device (22) via a propeller shaft (21),
The propeller shaft is accommodated in the center housing (40).
It exists in the FR type motor vehicle carrying the hybrid drive device of Claim 6.
[0021]
The present invention according to claim 8 is configured such that the internal combustion engine (5) is mounted on the vehicle body (2) and the front end surface of the transmission case (29) is fixedly disposed on the rear end surface of the internal combustion engine.
The motor housing (30) is mounted on the vehicle body (2) and arranged.
It exists in the FR type motor vehicle carrying the hybrid drive device in any one of Claims 5 thru | or 7.
[0022]
The present invention according to claim 9 is configured such that the motor housing (30) is mounted on the vehicle body (2) via a rubber mount (57).
An FR type automobile equipped with the hybrid drive device according to claim 8.
[0023]
In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it has no influence on the structure of each claim by this.
[0024]
【The invention's effect】
According to the first aspect of the present invention, since the first motor and the planetary gear for power distribution are housed in the transmission case and the second motor is housed in the motor housing and separated, the hybrid drive device is of the FR type. The degree of freedom for mounting on an automobile can be improved, and the first motor and the second motor can be supported by different vibration systems, thereby improving the motor support accuracy and efficiency. Further, since the intermediate shaft and the output shaft are connected via the coupling, the power can be smoothly transmitted between the two shafts while absorbing different vibrations between the transmission case and the motor housing.
[0025]
According to the second aspect of the present invention, since the second motor has an axial length structure in which the axial dimension is longer than the radial dimension, the arrangement of the second motor on the vehicle body is facilitated. The use efficiency of the space can be improved without sacrificing the living (loading) space.
[0026]
According to the third aspect of the present invention, since the planetary gear for reduction is accommodated in the motor housing, the mountability of the hybrid drive device to the FR type vehicle can be further improved.
[0027]
According to the fourth aspect of the present invention, the stator of the second motor can be fixed to the motor housing to have a compact structure, and the second motor has a shaft length structure, The rotor and output shaft are supported by the motor housing as a double-sided structure to improve the support accuracy of the motor, and the air gap between the stator and the motor is managed with high accuracy to improve the efficiency of the second motor. be able to.
[0028]
According to the fifth aspect of the present invention, the above-described hybrid drive device having excellent mountability is mounted on an FR-type vehicle without significant changes in the vehicle body, thereby greatly putting the FR-type hybrid vehicle into practical use. This is possible without increasing costs.
[0029]
According to the sixth aspect of the present invention, since the motor housing that supports the second motor having the shaft length structure is housed in the center housing of the vehicle body, in combination with the fixing of the stator to the motor housing, The housing space can be used effectively, and the body of an automobile equipped with a conventional automatic transmission can be used without major changes.
[0030]
According to the seventh aspect of the present invention, since the propeller shaft is housed in the center housing together with the motor housing, further effective utilization of the center housing space can be achieved.
[0031]
According to the eighth aspect of the present invention, since the transmission case is fixed to the internal combustion engine and the motor housing is mounted on the vehicle body, the first motor on the engine side, the planetary gear for power distribution, and the motor housing are separately vibrated. The resonance frequency of the hybrid drive device can be moved to the higher order side from the vehicle use area, and the rigidity of the power plant of the vehicle body can be improved.
[0032]
According to the ninth aspect of the present invention, since the motor housing is mounted on the vehicle body via the rubber mount, the rigidity of the vehicle body can be increased by separating the vibration system, and the efficiency can be easily increased by improving the support accuracy of the second motor. Can be aimed at.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a plan view showing a vehicle outline of FR type equipped with a hybrid drive device according to the present invention, 1 ₁ shows an FR type vehicle equipped with the hybrid drive system 6 _1. Body 2 of the vehicle 1 ₁ right is suspended at the front wheels 3,3 and left and right rear wheels 25 and 25, the internal combustion engine 5 in the longitudinal direction of the crank shaft to the forward portion of the vehicle body 2 is a rubber mount Is mounted via.
[0034]
The hybrid drive system 6 _1, in the same manner as described above, the first motor (generator) 7 that are sequentially arranged in a single form that is aligned with the crank shaft from the engine 5 side, a power distribution planetary gear 9, second motor (Drive motor) 10 ₁ and speed reduction planetary gear 11 are provided, but first motor 7 and power distribution planetary gear 9, second motor 10 ₁ and speed reduction planetary gear 11 are configured separately. Are housed in separate mission cases 29 and motor housings 30, respectively.
[0035]
An output shaft 5a consisting of rearward projection of the crankshaft of the internal combustion engine 5, the input shaft 12 of the hybrid drive system 6 ₁ is coupled via a damper device 8, the crankshaft and the uniaxial shape of the input shaft 12 The first motor 7 is coaxially disposed on the outer diameter side of the first motor 7. Similarly, the first motor 7 is a brushless DC motor, and a stator 13 fixed to the transmission case 29 and a rotor that is rotatably supported with a predetermined air gap on the inner diameter side of the stator. 15. The power distribution planetary gear 9 is composed of a simple planetary gear arranged coaxially with the input shaft 12 and is connected to the rotor 15 and a carrier C1 connected to the input shaft 12 and supporting a plurality of planetary pinions P1. A sun gear S1 and a ring gear R1 serving as a travel output portion. The ring gear R1 is connected to an intermediate shaft 32 extending rearward on the same axis as the input shaft 12.
[0036]
The damper device 8, the first motor 7 and the power distribution planetary gear 9 are housed in a transmission case 29, and the transmission case is fixedly attached to the rear end surface of the internal combustion engine 5. It has been. Further, the intermediate shaft 32 is rotatably supported through a bearing 33 at the rear end portion of the mission case 29. Therefore, the front end side of the input shaft 12 is connected to the output shaft 5 a of the engine 5 and supported by the engine, and the rear end thereof is supported by the transmission case 29 integrated with the engine 5. The vehicle body 2 is preferably the same as that on which a conventional automatic transmission (AT) is mounted, and the vehicle body is located in a portion adjacent to the engine 5 in a living space (driver's seat and passenger seat). A space for accommodating the automatic transmission is formed in the space between the transmission case, and the size of the transmission case 29 is set within the space.
[0037]
The second motor 10 _1, likewise, the first motor 7 has a large output characteristic from and coaxially and outside its output shaft 16 ₁ connected to the intermediate shaft 32 in the brushless DC motor The stator 17 is disposed on the radial side, and is fixed to the case, and the rotor 19 is rotatably supported on the inner diameter side with a predetermined air gap. Then, the motor 10 ₁ of the second consists of a long axis length structure of axial dimension than the radial dimension. Here, the radial dimension is the length of the outer diameter of the stator 17, and the axial dimension is the axial length of the stator core not including the coil.
[0038]
On the other hand, as shown in FIG. 3, the vehicle body 2 has a center housing 40 that extends in the front-rear direction at the center in the width direction and protrudes into a living space. The center housing 40 accommodates a conventional propeller shaft. It has the same shape as that to be performed, and extends from the automatic transmission storage space continuously in the front-rear direction through the central portion of the rear seat.
[0039]
The second motor 10 ₁ of the axial length structure is accommodated in the motor housing 10 together with the reduction planetary gear 11, the radial dimension of the motor housing is set to a dimension that fits into the center housing 40. The second motor 10 _1, together consist of radial dimension that is limited by the space, the axial dimension is set so as to have a predetermined output that is determined by the vehicle weight and acceleration request or the like. Wherein the reduction planetary gear set 11 is made simple planetary gear arranged coaxially with the output shaft 16 _1, a ring gear R2 connected to the output shaft 16 _1, a sun gear S2 connected to the rotor 19, a plurality of And a carrier C2 that supports the pinion P2 and is fixed to the motor housing 30. Output shaft 16 ₁ is integrally fixed to the ring gear R2 further extends rearwardly projects from the motor housing 30, but coupling Aru 20 and shows the propeller shaft 21 (omitted to actually universal joint, (Including a center bearing) is connected to the differential device 22 and further transmitted from the differential device to the rear wheels 25 and 25 via the left and right drive shafts 23l and 23r.
[0040]
The second motor 10 _1, as shown in detail in FIG. 2, has an axial dimension of about 1.1 to 2.0 times longer stator (core) 17 in the radial dimension, the A long stator 17 is integrally fixed to the motor housing 30, and a rotor 19 is disposed facing the inner diameter side thereof. A sleeve shaft 41 is integrally fixed to the inner peripheral surface of the rotor 19, and portions of the sleeve shaft 41 protruding on both sides of the rotor 19 are supported at both ends of the motor housing 30 via bearings 42 and 43. Is supported in a freely rotatable manner. Further, the hollow portion of the sleeve shaft 41 extends the output shaft 16 ₁ penetrates, the output shaft 16 ₁ is fitted relatively rotatably through a bush or needle with respect to the sleeve shaft 41 Yes.
[0041]
Front end portion of the output shaft 16 _1, together is rotatably supported via a bearing 45 on the motor housing 30, from the motor housing 30 and protrudes forward, the output shaft 16 _1, in the front end portion The intermediate shaft 32 is connected via a flexible coupling 46 while being aligned. The rear end portion of the output shaft 16 ₁ is fitted together with the second output shaft 16 ₂ is splined consisting large diameter, the second output shaft 16 ₂ is the motor housing, the predetermined axial direction It is rotatably supported via two bearings 47 and 49 spaced apart from each other. Accordingly, the output shafts 16 ₁ and 16 ₂ are rotatably supported by a double-supported structure outside the support portions 42 and 43 of the rotor 19 in the axial direction.
[0042]
The motor housing 30 includes a cylindrical body 30a, made from the front cover 30b and the rear cover 30c are fixed to the cover at both ends of the body, to support the front side of the rotor 19 and the output shaft 16 ₁ The bearings 42 and 45 are attached to the front cover 30b. The stator 30 is integrally fixed to the inner peripheral surface of the main body 30a, and has a partition wall 30d at the rear portion, and a bearing 43 that supports the rear portion of the rotor 19 is mounted on the partition wall. . Further, the rear cover 30c, 2 pieces of bearings 47 and 49 supporting the second output shaft 16 ₂ is mounted.
[0043]
The speed reduction planetary gear 11 is accommodated between the partition wall 30d of the main body 30a and the rear cover 30c. The planetary gear 11 has an outer diameter dimension that fits within the cylindrical body 30a of the motor cover 30, the carrier C2 is fixed to the partition wall 30d, and the sun gear S2 is the rear end of the sleeve shaft 41. provided on, the ring gear R2 is fixed to the second front end face of the output shaft 16 _2.
[0044]
Second output shaft 16 ₂ extends subsequent portion protruding from the rear cover 30c, the output shaft projecting portion connected to the propeller shaft 21 via a coupling 20. The propeller shaft 21 is supported by a center bearing 51 and has a universal joint 52 and a spline. The propeller shaft 21 absorbs the dance of the rear wheel 25 and the rear end thereof is linked to the differential device 22. Yes.
[0045]
On the other hand, as shown in detail in FIG. 3, a center housing 40 extends in the front-rear direction at the center in the width direction of the vehicle body, and the bottom plate covers the lower open portion of the storage portion 40a of the housing 40. 53 is fixed to the vehicle body 2 by bolts 55. A bottom plate 59 of a rubber mount 57 having a plurality of mount rubbers 56, 56 inclined upward toward the center side is fixed to the bottom plate 53 with bolts or the like, and the motor housing is mounted on the top plate 61 of the mount. 30 is fixed by a bolt or the like. Accordingly, the motor housing 30 is mounted on the vehicle body 2 with the rubber mount 57 interposed in the housing portion 40a of the center housing.
[0046]
Automotive 1 ₁ on a FR type of this hybrid drive system 6 ₁ Similarly, the output of the internal combustion engine 5 is transmitted to the power distributing planetary gear 9 via the damper 8 and the input shaft 12, first by the planetary gear The motor (generator) 7 and the intermediate shaft 32 are distributed to each other, and by further controlling the first motor 7, the output rotation from the intermediate shaft 32 is adjusted steplessly. Rotation of the intermediate shaft 32 is transmitted to the output shaft 16 ₁ through a flexible coupling 46, and corresponding second motor 10 ₁ is being driven as required, a second output is reduced by the reduction planetary gear 11 The power is transmitted to the shaft 16 ₂ and assists the power of the output shafts 16 ₁ and 16 ₂ . Furthermore, the rotation of the output shaft 16 _2, the coupling 50, the left and right drive shafts through the propeller shaft 21 and the differential unit 22 23l, are transmitted to 23r, to drive the rear wheels 25, 25.
[0047]
In this case, the first motor 7 and the power distributing planetary gear 9 is supported by the transmission case 29, and configure the same vibration system as the engine 5, and the second motor 10 ₁ and the reduction planetary gear set 11, the vehicle body 2 A vibration system different from the engine vibration system is supported by the directly mounted motor housing 30.該分intermediate shaft 32 consisting of isolated vibration system and the output shaft 16 ₁ is contacted via a flexible coupling 46, while allowing each individual vibration of the different vibration systems, both axes 32, 16 Can rotate smoothly.
[0048]
The second motor 10 ₁ is supported by the motor housing 30 that is directly mounted to the vehicle body 2, which is separated from the first motor 7 supported on the transmission case 29 of the engine side, the hybrid drive system 6 ₁ it becomes easy to move the resonance frequency from the vehicle used area higher side, and has a favorable structure with respect to rigidity of the power plant of a motor vehicle 1 of _the present FR type.
[0049]
Then, the second motor 10 ₁ and the reduction planetary gear set 11, since the separately provided to the first motor 7 and the power distributing planetary gear 11, improving the degree of freedom in the vehicle mounting the hybrid drive system 6 _1, in particular since constitute a second motor 10 ₁ so as to housed in the motor housing 40 as the axial length structure, conventional automatic transmission (aT) without performing a large remodeling to the body 2 mounting the FR type hybrid it is possible to mount the driving device _61. At this time, the second motor 10 ₁ has a shaft length structure, but supports the rotor 19 in the motor housing 30 with a double-sided structure and the output shafts 16 ₁ and 16 ₂ with a double-sided structure. and supporting, can be supported with high accuracy, it is possible to hold the air gap between the stator 17 and the rotor 19 with high precision, it is possible to improve the second efficiency of the motor 10 _1.
[0050]
Further, since the propeller shaft is a rotating body and dances due to the relative movement of the rear wheel 25, the center housing 40 needs a clearance for avoiding interference with the propeller shaft. Since it is mounted directly on the vehicle body 2 and the stator 17 is directly fixed to the inner peripheral surface of the motor housing, space efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view schematically showing an FR type automobile equipped with a hybrid drive device according to the present invention.
FIG. 2 is a longitudinal sectional view showing a second motor (drive motor) and a planetary gear portion for reduction.
FIG. 3 is a cross-sectional view thereof.
FIG. 4 is a plan view showing an outline when the hybrid drive device is directly mounted on an FR type automobile.
[Explanation of symbols]
1 ₁ FR-type automobile 2 Car body 3 Front wheel 5 Internal combustion engine 5a Crankshaft (output shaft)
6 ₁ hybrid drive apparatus 7 first motor (generator)
9 Power distribution planetary gear 10 ₁ Second motor (drive motor)
DESCRIPTION OF SYMBOLS 11 Deceleration planetary gear 12 Input shaft 16 ₁ , 16 ₂ Output shaft 17 Stator 19 Rotor 21 Propeller shaft 23l, 23r Drive shaft 25 Rear wheel 29 Transmission case 30 Motor housing 32 Intermediate shaft 42, 43 Both-end support structure of rotor (bearing)
45, 47, 49 Output shaft support structure (bearing)
46 (Flexible) Coupling

Claims (9)

A first motor, a power distribution planetary gear, and a second motor;
The driving force transmitted to the input shaft is distributed and transmitted to the first motor and the intermediate shaft by the power distribution planetary gear, and the power distributed to the intermediate shaft is transmitted to the output shaft, and the output shaft In the hybrid drive device that is linked to the second motor,
The first motor, the power distribution planetary gear and the second motor are sequentially arranged in a single axis,
Storing the first motor and the planetary gear for power distribution in a transmission case;
Storing the second motor in a motor housing outside the transmission case;
The intermediate shaft and the output shaft are connected via a coupling,
Hybrid drive device. The second motor has an axial length structure in which an axial dimension is longer than a diameter dimension.
The hybrid drive device according to claim 1. A deceleration planetary gear that decelerates the output of the second motor and interlocks with the output shaft;
The speed reduction planetary gear is housed in the motor housing along with the second motor in the axial direction.
The hybrid drive device according to claim 1 or 2. The stator of the second motor is fixed to the motor housing, the rotor is rotatably supported by a both-end support structure, and the output shaft is supported at the outer side in the axial direction of the support portion of the rotor. It is supported in a freely rotatable manner,
The hybrid drive device according to claim 1. An internal combustion engine is arranged at the front portion of the vehicle body so that the crankshaft is positioned in the front-rear direction of the vehicle body,
The hybrid drive device according to any one of claims 1 to 4 is arranged substantially uniaxially with the crankshaft,
The input shaft is connected to a crankshaft of the internal combustion engine, and the output shaft is linked to a rear wheel via a differential device.
An FR type vehicle equipped with a hybrid drive device. The vehicle body has a center housing that extends in the front-rear direction in the center in the width direction and protrudes into a living space,
The motor housing is housed in the center housing.
An FR type vehicle equipped with the hybrid drive device according to claim 5. The output shaft and the differential device are connected via a propeller shaft,
The propeller shaft is housed in the center housing.
An FR type automobile equipped with the hybrid drive device according to claim 6. The internal combustion engine is mounted on the vehicle body, and the front end surface of the transmission case is fixedly disposed on the rear end surface of the internal combustion engine,
The motor housing is mounted on the vehicle body and arranged.
An FR type vehicle equipped with the hybrid drive device according to claim 5. The motor housing is mounted on the vehicle body via a rubber mount.
An FR type automobile equipped with the hybrid drive device according to claim 8.

Images