WO2022012314A1

WO2022012314A1 - Driving system of rear-drive hybrid vehicle

Info

Publication number: WO2022012314A1
Application number: PCT/CN2021/102773
Authority: WO
Inventors: 杨阳; 王志明; 赵雪松; 王男
Original assignee: 中国第一汽车股份有限公司
Priority date: 2020-07-14
Filing date: 2021-06-28
Publication date: 2022-01-20
Also published as: CN111775685B; CN111775685A

Abstract

A driving system of a rear-drive hybrid vehicle. The driving system comprises an engine (10), a first transmission shaft (31), a connection and disconnection device (20), a second transmission shaft (32), a first electric motor (40), a first gear assembly, a fourth transmission shaft (34), a fifth transmission shaft (35), a second gear assembly, a rear differential device (80), an inverter (100) and an electric energy storage device (200). A driving end of the connection and disconnection device (20) is connected to the engine (10) by means of the first transmission shaft (31); the first electric motor (40) is connected to a driven end (22) of the connection and disconnection device (20) by means of the second transmission shaft (32); a first end of the first gear assembly is fixed to the second transmission shaft (32); a second end of the first gear assembly is fixed to a third transmission shaft (33); a second electric motor (60) is fixed to the fourth transmission shaft (34); a first end of the second gear assembly is fixed to the fourth transmission shaft (34); a second end of the second gear assembly is fixed to one end of the fifth transmission shaft (35); the rear differential device (80) is respectively connected to a second end of the fifth transmission shaft (35) and a rear drive shaft (103); the inverter (100) is respectively connected to the first electric motor (40) and the second electric motor (60); and the electric energy storage device (200) is connected to the inverter (100).

Description

Drive systems for rear-drive hybrid vehicles

This application claims the priority of the Chinese patent application with an application date of July 14, 2020 and an application number of 202010674754.0, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the field of vehicle drive technology, for example, to a drive system of a rear-drive hybrid vehicle.

Background technique

A rear-drive hybrid vehicle is a vehicle that uses both gasoline and electric drives to drive the rear wheels. The advantage is that when the vehicle starts and stops, it is only driven by the motor, and the engine does not work. When the preset speed is reached, the engine rotates, so that the engine can always maintain the best working condition, with good power and low emissions.

In the related art, the transmission device of the hybrid vehicle is usually based on the gasoline drive device, and an electric motor is added between the engine and the transmission, so as to realize the function of electric drive. That is, the hybrid drive is realized by improving the conventional automatic transmission into a hybrid transmission. However, the transmission formed by the hybrid drive cannot control the engine to work in a low fuel consumption area for a long time, resulting in a smaller range of lower vehicle fuel consumption, and a hybrid vehicle with a hybrid drive mode has fewer drive modes.

SUMMARY OF THE INVENTION

The present application provides a drive system for a rear-drive hybrid vehicle, which can enable the vehicle to be in the most economical working mode and reduce the fuel consumption of the vehicle.

An embodiment provides a drive system for a rear-drive hybrid vehicle, including:

engine; first drive shaft;

a connection and disconnection device, the active end of the connection and disconnection device is connected with the engine through the first transmission shaft; the second transmission shaft;

a first motor, connected with the driven end of the connection and disconnection device through the second transmission shaft;

a first gear assembly, the first end of the first gear assembly is fixed on the second transmission shaft, the second end of the first gear assembly is fixed on the third transmission shaft; the fourth transmission shaft;

The second motor is fixed on the fourth transmission shaft, the fourth transmission shaft is rigidly connected with the third transmission shaft; the fifth transmission shaft;

a second gear assembly, the first end of the second gear assembly is fixed on the fourth transmission shaft, and the second end of the second gear assembly is fixed on the first end of the fifth transmission shaft;

a rear differential device, the rear differential device is respectively connected with the second end of the fifth transmission shaft and the rear drive shaft;

an inverter connected to the first motor and the second motor, respectively; and

an electrical energy storage device, connected to the inverter, configured to store electrical energy generated by the first motor, and configured to provide electrical energy to the second motor;

Wherein, the engine, the connection and disconnection device, the first motor and the second motor are arranged at intervals along the direction from the front wheel to the rear wheel of the vehicle.

In one embodiment, the drive system of the rear-drive hybrid vehicle further includes a synchronizing device, the synchronizing device is fixed on the third transmission shaft, and the synchronizing device is configured to be engaged with or disengaged from the first gear assembly. open.

In one embodiment, the first gear assembly includes a first gear pair and a second gear pair, and the synchronizing device is located between the first gear pair and the second gear pair.

In one embodiment, the first gear pair includes a first driving gear and a first driven gear, the second gear pair includes a second driving gear and a second driven gear, the first driving gear and all The second driving gear is respectively fixed on the second transmission shaft, the first driven gear and the second driven gear are respectively fixed on the third transmission shaft, and the synchronizing device is arranged to be connected with the The first driven gear is engaged or disengaged with one of the second driven gears.

In one embodiment, the transmission ratio of the first gear pair is greater than the transmission ratio of the second gear pair, and when the synchronizing device is engaged with the first driven gear, the engine and the first motor The driving force generated by at least one of them can be transmitted to the first driven gear, and the driving force generated by at least one of the engine and the first electric motor when the synchronizing device is engaged with the second driven gear Force can be transmitted to the second driven gear.

In one embodiment, the drive system further includes a first bearing and a second bearing, the first bearing being located in the inner cavity formed by the first driven gear and the third transmission shaft, the second bearing is located in the inner cavity formed by the second driven gear and the third transmission shaft.

In one embodiment, the second gear assembly includes a third gear pair, a third driving gear in the third gear pair is fixed to the fourth transmission shaft, and a third slave gear in the third gear pair is The movable gear is fixed with the fifth transmission shaft.

In one embodiment, the axes of the first transmission shaft, the second transmission shaft, the third transmission shaft, the fourth transmission shaft and the fifth transmission shaft are parallel to each other, and the first transmission shaft is The transmission shaft, the second transmission shaft and the fifth transmission shaft are located on the same axis.

In one embodiment, one side of the first motor has an inner cavity, and the connection and disconnection device is located in the inner cavity.

In one embodiment, the drive system further includes a plurality of bearings, through which the first transmission shaft, the second transmission shaft, the third transmission shaft, the fourth transmission shaft and the fifth transmission shaft respectively pass The plurality of bearings are fixedly supported.

Description of drawings

1 is a schematic diagram 1 of a drive system of a rear-drive hybrid vehicle provided by an embodiment of the present application;

FIG. 2 is a second schematic diagram of a drive system of a rear-drive hybrid vehicle according to an embodiment of the present application.

In the picture:

10, engine; 20, connection and disconnection device; 21, driving end; 22, driven end; 31, first drive shaft; 32, second drive shaft; 33, third drive shaft; 34, fourth drive shaft; 35, the fifth transmission shaft; 40, the first motor; 51, the first gear pair; 511, the first driving gear; 512, the first driven gear; 52, the second gear pair; 521, the second driving gear; 522 , the second driven gear; 60, the second motor; 71, the third gear pair; 711, the third driving gear; 712, the third driven gear; 80, the rear differential device; 90, the synchronizing device; 100, the inverse Inverter; 200, electric energy storage device; 101, front drive shaft; 102, front wheel; 103, rear drive shaft; 104, rear wheel;

1, the first bearing; 2, the second bearing; 3, the third bearing; 4, the fourth bearing; 5, the fifth bearing; 6, the sixth bearing; 7, the seventh bearing; 8, the eighth bearing; 9, The ninth bearing; 11, the tenth bearing; 12, the eleventh bearing; 13, the twelfth bearing; 14, the thirteenth bearing.

detailed description

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

This embodiment provides a drive system of a rear-drive hybrid vehicle. As shown in FIG. 1 and FIG. 2 , the drive system of the rear-drive hybrid vehicle includes an engine 10 , a connection and disconnection device 20 , a first motor 40 , and a first motor 40 . A gear assembly, a second motor 60, a second gear assembly, a rear differential device 80, a synchronization device 90, an inverter 100, an electrical energy storage device 200, a plurality of transmission shafts, and a plurality of bearings.

The engine 10 is arranged close to the front drive shaft 101 , the active end 21 of the connection and disconnection device 20 is connected to the engine 10 through the first transmission shaft 31 , and is configured to transmit the power of the engine 10 , and the driven end 22 of the connection and disconnection device 20 The second transmission shaft 32 is connected to the first motor 40 , that is, the first motor 40 is fixed on the second transmission shaft 32 . In one embodiment, one side of the first motor 40 (which may be the left side of the first motor 40 ) has an inner cavity, and the connection and disconnection device 20 is located in the inner cavity, so as to utilize the inner space reasonably.

The first end of the first gear assembly is fixed on the second transmission shaft 32, the second end of the first gear assembly is fixed on the third transmission shaft 33, and the first gear assembly is arranged between the second transmission shaft 32 and the third transmission shaft 32. Power is transmitted between the shafts 33 . The second motor 60 is fixed on the fourth transmission shaft 34 . The fourth transmission shaft 34 and the third transmission shaft 33 are coaxially disposed and rigidly connected, so that the power on the third transmission shaft 33 can be transmitted to the fourth transmission shaft 34 . The first end of the second gear assembly is fixed on the fourth transmission shaft 34 , and the second end of the second gear assembly is fixed on the first end of the fifth transmission shaft 35 ; the rear differential device 80 is connected to the fifth transmission shaft 35 respectively. The second end is connected with the rear drive shaft 103, and the rear drive shaft 103 is connected with the rear wheel 104. The inverter 100 is connected to the first motor 40 and the second motor 60 respectively, and the electric energy storage device 200 is connected to the inverter 100, and is configured to store the electric energy generated by the first motor 40 driven by the engine 10, and is configured to send the electric energy to the inverter. The second motor 60 provides electrical energy, so that the second motor 60 can drive the rear differential device 80 and the rear drive shaft 103 to move. The inverter 100 is electrically connected to the first motor 40 , the second motor 60 and the energy storage device 200 . The electrical energy storage device 200 may be a battery.

The engine 10 , the connection and disconnection device 20 , the first electric machine 40 and the second electric machine 60 are sequentially spaced in a direction in which the front wheels 102 of the vehicle are directed toward the rear wheels 104 .

In this embodiment, by configuring two motors (the first motor 40 and the second motor 60) and one engine 10, the multi-gear design of the transmission is omitted, and the first motor 40 and the first motor 40 and the second motor can be driven by the engine 10 for a long time. The second motor 60 generates electricity to provide sufficient electric energy, thus solving the problems of short battery life and long charging time of the pure electric vehicle. The engine 10 can participate in driving when the vehicle speed is high, and does not participate in driving when the vehicle speed is low, so that the vehicle can be in the most economical working mode and the fuel consumption of the vehicle is reduced.

Since the engine 10 , the connection and disconnection device 20 , the first motor 40 and the second motor 60 in this embodiment are arranged at intervals along the direction from the front wheel 102 to the rear wheel 104 of the vehicle, that is, the rear The drive system of the hybrid vehicle is longitudinally arranged in the vehicle, so that the axial space of the hybrid system is relatively abundant, thereby making the design and production of components less difficult and the torque capacity large.

In one embodiment, as shown in FIG. 1 , the drive system of the rear-drive hybrid vehicle further includes a synchronization device 90 . The synchronizing device 90 is fixed on the third transmission shaft 33. In one embodiment, the synchronizing device 90 is fixed in the middle of the third transmission shaft 33, and the synchronizing device 90 can be engaged or disengaged with the first gear assembly.

In one embodiment, please continue to refer to FIG. 1 , the first gear assembly may include a first gear pair 51 and a second gear pair 52 , the synchronizing device 90 is located between the first gear pair 51 and the second gear pair 52 , and, The synchronizing device 90 can be engaged or disengaged with one of the first gear pair 51 and the second gear pair 52 . When the synchronization device 90 is engaged with the first gear pair 51, the driving force generated by the engine 10 and/or the first motor 40 can be transmitted to the first gear pair 51, and when the synchronization device 90 is engaged with the second gear pair 52, it can be The driving force generated by the engine 10 and/or the second motor 40 is transmitted to the second gear pair 52 .

In one embodiment, the first gear pair 51 includes a first driving gear 511 and a first driven gear 512 that mesh with each other, and the second gear pair 52 includes a second driving gear 521 and a second driven gear 522 that mesh with each other. The first driving gear 511 and the second driving gear 521 are respectively fixed on the second transmission shaft 32, the first driven gear 512 and the second driven gear 522 are respectively fixed on the third transmission shaft 33, and the synchronization device 90 and the One of the first driven gear 512 and the second driven gear 522 is engaged or disengaged, that is, the synchronizer 90 is engaged or disengaged from the first driven gear 512, or the synchronizer 90 is engaged with the second driven gear Gear 522 is engaged or disengaged.

In this embodiment, the first gear pair 51 and the second gear pair 52 may have different transmission ratios (ie, rotational speed ratios), so that the driving force generated by the engine 10 is transmitted to the fifth transmission shaft 35 at different rotational speed ratios. In one embodiment, the transmission ratio of the first gear pair 51 is greater than the transmission ratio of the second gear pair 52 , so that when the synchronizing device 90 is engaged with the first driven gear 512 , the engine 10 and/or the first electric machine 40 generate The driving force of the gear can be transmitted to the first driven gear 512 with a larger transmission ratio, and then transmitted to the fifth transmission shaft 35 through the third transmission shaft 33 and the fourth transmission shaft 34 . When the synchronizing device 90 is engaged with the second driven gear 522, the driving force generated by the engine 10 and/or the first motor 40 can be transmitted to the second driven gear 522 with a smaller transmission ratio, and then through the third transmission shaft 33 and the fourth transmission shaft 34 are transmitted to the fifth transmission shaft 35 .

In one embodiment, as shown in FIG. 2 , the drive system of the rear-drive hybrid vehicle further includes a first bearing 1 and a second bearing 2 . Wherein, the first bearing 1 is located in the inner cavity formed by the first driven gear 512 and the third transmission shaft 33, and is arranged to support the first driven gear 512; the second bearing 2 is located in the inner cavity formed by the second driven gear 522 and the third transmission shaft 33. The inner cavity formed by the third transmission shaft 33 is arranged to support the second driven gear 522 .

In this embodiment, referring to FIGS. 1 and 2 , the second gear assembly includes a third gear pair 71 , and the third gear pair 71 includes a third driving gear 711 and a third driven gear 712 . The third driving gear 711 is fixed on the fourth transmission shaft 34, and the third driven gear 712 is fixed on the fifth transmission shaft 35, so that the driving force on the fourth transmission shaft 34 can pass through the third driving gear 711 and the The third driven gear 712 is transmitted to the fifth transmission shaft 35 .

In this embodiment, the axes of the first transmission shaft 31 , the second transmission shaft 32 , the third transmission shaft 33 , the fourth transmission shaft 34 and the fifth transmission shaft 35 are parallel to each other, in the direction from the front wheel 102 to the rear wheel 104 . Furthermore, the first transmission shaft 31 , the second transmission shaft 32 and the fifth transmission shaft 35 may be located on the same axis, and the third transmission shaft 33 and the fourth transmission shaft 34 may be located on the same axis.

In one embodiment, as shown in FIG. 2 , the drive system of the rear-drive hybrid vehicle may further include a third bearing 3 , a fourth bearing 4 , a fifth bearing 5 , a sixth bearing 6 , a seventh bearing 7 , The eighth bearing 8 , the ninth bearing 9 , the tenth bearing 11 , the eleventh bearing 12 , the twelfth bearing 13 and the thirteenth bearing 14 . The first transmission shaft 31 is supported and fixed by the third bearing 3 and the fourth bearing 4 , the second transmission shaft 32 is supported and fixed by the fifth bearing 5 and the sixth bearing 6 , and the third transmission shaft 33 is supported and fixed by the seventh bearing 7 and the sixth bearing 6 . The eighth bearing 8 is supported and fixed, and the fourth transmission shaft 34 is supported and fixed by the ninth bearing 9 , the tenth bearing 11 and the eleventh bearing 12 , wherein the ninth bearing 9 and the tenth bearing 11 are located at both ends of the fourth transmission shaft 34 , the eleventh rotating shaft 12 is located in the middle of the fourth transmission shaft 34 , and the fifth transmission shaft 35 is supported and fixed by the twelfth bearing 13 and the thirteenth bearing 14 .

In the following, the present embodiment will describe the functions that can be realized by the drive system of the rear-drive hybrid vehicle in several cases.

In the first case, the vehicle is driven by the engine 10, and the engine 10 is in a state of generating electricity.

In this case, the engine 10 is in a working state and the connection and disconnection device 20 is in a connected state. At this time, the engine 10 drives the first motor 40 to rotate, so that the first motor 40 can generate electricity and store it in the electrical energy storage device 200 . And, the synchronization device 90 is engaged with one of the first driven gear 512 and the second driven gear 522 , so that the driving force generated by the engine 10 is transmitted to the third transmission shaft 33 through the first gear pair 51 or the second gear pair 52 , the third transmission shaft 33 drives the fourth transmission shaft 34 to rotate, and then transmits the driving force to the fifth transmission shaft 35 through the third gear pair 71, and then the rear differential device 80 and the rear drive shaft 103 drive the rear wheels 104 to rotate . The second motor 60 rotates with the fourth transmission shaft 34 and does not generate a driving force.

In the second case, the vehicle is driven by the second motor 60, and the engine 10 is in a state of generating electricity.

In this case, the engine 10 is in a working state, and the connection and disconnection device 20 is in a connected state. At this time, the engine 10 drives the first motor 40 to generate electricity. At the same time, the synchronization device 90 is not coupled with the first driven gear 512 and the second driven gear 522. Therefore, the first driving gear 511 drives the first driven gear 512 to idle on the third transmission shaft 33, and the second driving The gear 521 drives the second driven gear 522 to idle on the third transmission shaft 33 , and the driving force of the engine 10 is not transmitted to the third transmission shaft 33 through the first gear pair 51 and the second gear pair 52 .

The second motor 60 uses the electric energy of the electric energy storage device 200 to generate driving force, and then transmits the driving force to the fifth transmission shaft 35 through the third gear pair 71 , and then drives the rear wheels 104 through the rear differential device 80 and the rear drive shaft 103 . turn.

In the third case, the vehicle is driven by the second motor 60, and the engine is in a state of not generating electricity.

In this case, the engine is in a non-operating state, the connection and disconnection device 20 is in a disconnected state, and at this time, the first motor 40 is in a non-generating state.

In the fourth case, the vehicle is driven by a hybrid, and the engine 10 is in a state of generating electricity.

In this case, the engine 10 is in a working state, the connection and disconnection device 20 is in a connected state, and the engine 10 drives the first motor 40 to rotate, so that the first motor 40 can generate electricity and store it in the electrical energy storage device 200 . And, the synchronization device 90 is engaged with one of the first driven gear 512 and the second driven gear 522 , so that the driving force generated by the engine 10 is transmitted to the third transmission shaft 33 through the first gear pair 51 or the second gear pair 52 , the third transmission shaft 33 drives the fourth transmission shaft 34 to rotate, and then transmits the driving force to the fifth transmission shaft 35 through the third gear pair 71, and then the rear differential device 80 and the rear drive shaft 103 drive the rear wheels 104 to rotate .

In the fifth situation, the vehicle is in a reverse state, and the engine 10 is in a state of not generating electricity.

In this case, the second electric motor 60 uses the electric energy in the battery device of the vehicle to generate a reverse driving force, and transmits the reverse driving force to the fifth transmission shaft 35 through the third gear pair 71, and then through the rear differential The device 80 and the rear drive shaft 103 drive the rear wheels 104 to rotate to realize reversing.

The engine 10 is in a non-operating state, the connection and disconnection device 20 is in a disconnected state, and the first motor 40 neither generates electricity nor a driving force.

In the sixth case, the vehicle is stationary and the engine 10 is in a power generation state.

In this case, the engine 10 is in a working state and the connection and disconnection device 20 is in a connected state. At this time, the engine 10 drives the first motor 40 to rotate, so that the first motor 40 generates electricity. The synchronization device 90 is not engaged with the first driven gear 512 and the second driven gear 522. At this time, the first driving gear 511 drives the first driven gear 512 to idle on the third rotating shaft 33, and the second driving gear 521 The second driven gear 522 is driven to idle on the third rotating shaft 33, and the driving force of the engine 10 cannot be transmitted to the fifth transmission shaft 35, so that the fifth transmission shaft 35 cannot transmit the driving force to the rear differential device 80, so that the rear wheels 104 is not driven.

The second motor 60 is in a non-operating state, that is, the second motor 60 does not generate a driving force, and thus does not drive the rear wheels 104 .

As can be seen from the above, the rear-drive hybrid vehicle provided in this embodiment has many driving modes.

Claims

A drive system of a rear-drive hybrid vehicle, comprising:

engine (10);

a first drive shaft (31);

a connection and disconnection device (20), the active end (21) of the connection and disconnection device (20) is connected with the engine (10) through the first transmission shaft (31);

a second transmission shaft (32);

a first motor (40) connected to the driven end (22) of the connection and disconnection device (20) through the second transmission shaft (32);

a first gear assembly, the first end of the first gear assembly is fixed on the second transmission shaft (32), and the second end of the first gear assembly is fixed on the third transmission shaft (33);

the fourth drive shaft (34);

The second motor (60) is fixed on the fourth transmission shaft (34), and the fourth transmission shaft (34) is rigidly connected with the third transmission shaft (33);

the fifth transmission shaft (35);

A second gear assembly, the first end of the second gear assembly is fixed on the fourth transmission shaft (34), and the second end of the second gear assembly is fixed on the first end of the fifth transmission shaft (35) end;

a rear differential device (80), wherein the rear differential device (80) is respectively connected with the second end of the fifth transmission shaft (35) and the rear drive shaft (103);

an inverter (100) connected to the first motor (40) and the second motor (60), respectively; and

An electrical energy storage device (200), connected to the inverter (100), configured to store the electrical energy generated by the first motor (40), and configured to provide electrical energy to the second motor (60);

Wherein, the engine (10), the connection and disconnection device (20), the first motor (40) and the second motor (60) are arranged at intervals along the direction from the front wheel to the rear wheel of the vehicle .
The drive system of the rear-drive hybrid vehicle according to claim 1, further comprising a synchronizing device (90), the synchronizing device (90) being fixed on the third transmission shaft (33), and the synchronizing device ( 90) is arranged to engage or disengage with the first gear assembly.
The drive system of a rear-drive hybrid vehicle according to claim 2, wherein the first gear assembly comprises a first gear pair (51) and a second gear pair (52), and the synchronizing device (90) is located in the between the first gear pair (51) and the second gear pair (52).
The drive system of a rear-drive hybrid vehicle according to claim 3, wherein the first gear pair (51) comprises a first driving gear (511) and a first driven gear (512), the second gear The pair (52) includes a second driving gear (521) and a second driven gear (522), and the first driving gear (511) and the second driving gear (521) are respectively fixed on the second transmission shaft (32), the first driven gear (512) and the second driven gear (522) are respectively fixed on the third transmission shaft (33), and the synchronizing device (90) is set to One of the first driven gear (512) and the second driven gear (522) is engaged or disengaged.
The drive system of the rear-drive hybrid vehicle according to claim 4, wherein the transmission ratio of the first gear pair (51) is greater than the transmission ratio of the second gear pair (52), and the synchronizing device (90) ) is engaged with the first driven gear (512), the driving force generated by at least one of the engine (10) and the first motor (40) can be transmitted to the first driven gear (512) ), when the synchronizing device (90) is engaged with the second driven gear (522), the driving force generated by at least one of the engine (10) and the first motor (40) can be transmitted to the The second driven gear (522).
The drive system of the rear-drive hybrid vehicle according to claim 4, further comprising a first bearing (1) and a second bearing (2), the first bearing (1) being located at the position driven by the first driven gear ( 512) and the inner cavity formed by the third transmission shaft (33), the second bearing (2) is located in the inner cavity formed by the second driven gear (522) and the third transmission shaft (33). in the lumen.
The drive system of a rear-drive hybrid vehicle according to any one of claims 1-6, wherein the second gear assembly comprises a third gear pair (71), and the first gear pair (71) in the third gear pair (71) The three driving gears (711) are fixed to the fourth transmission shaft (34), and the third driven gear (712) in the third gear pair (71) is fixed to the fifth transmission shaft (35).
The drive system of a rear-drive hybrid vehicle according to any one of claims 1-6, wherein the first transmission shaft (31), the second transmission shaft (32), the third transmission shaft ( 33) The axes of the fourth transmission shaft (34) and the fifth transmission shaft (35) are parallel to each other, and the first transmission shaft (31), the second transmission shaft (32) and the The fifth transmission shaft (35) is located on the same axis.
The drive system of a rear-drive hybrid vehicle according to any one of claims 1-6, wherein one side of the first motor (40) has an inner cavity, and the connection and disconnection device (20) is located in the in the lumen.
The drive system of a rear-drive hybrid vehicle according to any one of claims 1-6, further comprising a plurality of bearings, the first transmission shaft (31), the second transmission shaft (32), the first transmission shaft (32), the The three transmission shafts (33), the fourth transmission shaft (34) and the fifth transmission shaft (35) are respectively fixedly supported by the plurality of bearings.