CN219119745U

CN219119745U - Intelligent differential device for vehicle

Info

Publication number: CN219119745U
Application number: CN202122017414.3U
Authority: CN
Inventors: 白金砖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2023-06-02
Anticipated expiration: 2031-08-25

Abstract

The utility model provides an intelligent differential device for a vehicle, which belongs to the technical field of differentials and comprises a differential system and a steering control system, wherein the steering control system is used for monitoring the steering of the vehicle and controlling the differential system; the differential system comprises a left conical gear, a right conical gear, a differential conical gear, a power input shaft and a differential input shaft, wherein the left conical gear and the right conical gear are respectively arranged on the left side and the right side of the power input shaft in a rotating mode, the differential conical gear is meshed with the left conical gear and the right conical gear at the same time, the differential input shaft is arranged on the differential conical gear, the left end of the power input shaft is in transmission connection with the outer end of the left conical gear through a left gear meshing mechanism, and the right end of the power input shaft is in transmission connection with the outer end of the right conical gear through a right gear meshing mechanism.

Description

Intelligent differential device for vehicle

Technical Field

The utility model relates to the technical field of differentials, in particular to an intelligent differential device for a vehicle.

Background

The differential enables the left and right (or front and rear) drive wheels to implement a mechanism that rotates at different speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planetary gears and a gear rack. The function is to make the left and right wheels roll at different speeds when the automobile turns or runs on uneven road, i.e. to ensure the pure rolling motion of the driving wheels at both sides. The differential is provided for adjusting the rotational speed difference between the left and right wheels. In four-wheel drive, all wheels must be connected in order to drive the four wheels, if the four wheels are mechanically connected together, the vehicle cannot rotate at the same speed during curved running, and in order to enable the rotational speeds of the vehicle during curved running to be substantially uniform, an intermediate differential is required to adjust the rotational speed difference between the front and rear wheels.

However, the differential mechanism at present adopts a half-shaft structure, and has good rotating speed difference adjusting effect, but the structure and the manufacturing process are complex, and the manufacturing cost is high. Therefore, a new differential structure needs to be studied.

Disclosure of Invention

In view of the above, the utility model provides an intelligent differential device for a vehicle, which has the advantages of simple structure and manufacturing process, low manufacturing cost, convenient steering control and contribution to popularization and use.

In order to solve the technical problems, the utility model provides an intelligent differential device for a vehicle, which comprises a differential system and a steering control system, wherein the steering control system is used for monitoring the steering of the vehicle and controlling the differential system;

the differential system comprises a left conical gear, a right conical gear, a differential conical gear, a power input shaft and a differential input shaft, wherein the left conical gear and the right conical gear are respectively arranged on the left side and the right side of the power input shaft in a rotating mode, the differential conical gear is simultaneously meshed with the left conical gear and the right conical gear, the differential input shaft is arranged on the differential conical gear, the left end of the power input shaft is in transmission connection with the outer end of the left conical gear through a left gear meshing mechanism, the right end of the power input shaft is in transmission connection with the outer end of the right conical gear through a right gear meshing mechanism, a left wheel output module and a right wheel output module are respectively arranged at the outer end of the left gear meshing mechanism and the outer end of the right gear meshing mechanism, and the steering control system provides differential power input for the differential input shaft.

Further, the left gear meshing mechanism comprises a left sun gear, three or four left planet gears and a left annular gear, the left sun gear is fixedly arranged on the power input shaft positioned on the outer side of the left conical gear, all the left planet gears rotate and are circumferentially and uniformly rotated to be arranged on the outer end face of the left conical gear, the left annular gear and all the left planet gears are simultaneously and internally meshed, the left gear output module is fixedly arranged on the outer end face of the left annular gear, and the left sun gear is meshed with the left planet gears.

Further, the left end portion of the power input shaft extends out of the left sun gear, and the center of the left ring gear is rotatably disposed on the left end portion of the power input shaft.

Further, the right gear meshing mechanism comprises a right sun gear, three or four right planet gears and a right annular gear, the right sun gear is fixedly arranged on the power input shaft positioned on the outer side of the right bevel gear, all right planet gears rotate and are circumferentially and uniformly rotated to be arranged on the outer end face of the right bevel gear, the right annular gear and all right planet gears are simultaneously and internally meshed, the right gear output module is fixedly arranged on the outer end face of the right annular gear, and the right sun gear is meshed with the right planet gears.

Further, the right end portion of the power input shaft extends out of the right sun gear, and the center of the right ring gear is rotatably disposed on the right end portion of the power input shaft.

Further, a power connecting wheel is fixedly arranged on the power input shaft between the left conical gear and the right conical gear, the power connecting wheel adopts a conical gear, and the power connecting wheel realizes power input by the power input wheel.

Further, the steering control system comprises a turbine, a worm, a driving motor, a motor controller, a left speed regulating controller, a right speed regulating controller, a double-sided steering rack, a steering gear and a speed sensor, wherein the turbine is fixedly arranged on the differential input shaft, the worm is connected with an output shaft of the driving motor and used for driving the turbine to rotate, the speed sensor is used for measuring the speed of a transmission shaft of a vehicle, the steering gear is fixedly arranged at the lower end of the steering shaft of the vehicle, the steering gear is meshed with one side of the double-sided steering rack, the left speed regulating controller and the right speed regulating controller can be meshed with two ends of the other side of the double-sided steering rack respectively, the length of a rack on the other side of the double-sided steering rack is smaller than the distance between the meshing point of the left speed regulating controller and the double-sided steering rack and the meshing point of the double-sided steering rack, and the driving motor and the speed sensor are all in signal interconnection with the motor controller.

Further, the left speed regulation controller comprises a left fixed shaft, a left speed regulation control gear and a left rotating speed sensor, the left speed regulation control gear is rotatably arranged on the left fixed shaft, the left rotating speed sensor is used for measuring the direction and the position of the left speed regulation control gear, and the left rotating speed sensor is in signal interconnection with the motor controller.

Further, the right speed regulation controller comprises a right fixed shaft, a right speed regulation control gear and a right rotating speed sensor, wherein the right speed regulation control gear is rotatably arranged on the right fixed shaft, the right rotating speed sensor is used for measuring the direction and the position of the right speed regulation control gear, and the right rotating speed sensor is in signal interconnection with the motor controller.

Further, the left wheel output module adopts a wheel shaft or a wheel hub.

Further, the right wheel output module adopts a wheel shaft or a wheel hub.

The technical scheme of the utility model has the following beneficial effects:

the differential mechanism adopts a structure of a differential system and a steering control system, wherein the steering control system is used for monitoring steering of a vehicle and controlling the differential system, the differential system adopts a structure which specifically comprises a left conical gear, a right conical gear, a differential conical gear, a power input shaft and a differential input shaft, wherein the left conical gear and the right conical gear are respectively arranged on the left side and the right side of the power input shaft in a rotating way, the differential conical gear is meshed with the left conical gear and the right conical gear at the same time, the differential input shaft is arranged on the differential conical gear, the left end of the power input shaft is in transmission connection with the outer end of the left conical gear through a left gear meshing mechanism, the right end of the power input shaft is in transmission connection with the outer end of the right conical gear through a right gear meshing mechanism, and a left wheel output module and a right wheel output module are respectively arranged at the outer end of the left gear meshing mechanism and the outer end of the right gear meshing mechanism. The intelligent differential device for the vehicle, which adopts the structure, has the advantages of simple structure and manufacturing process, low manufacturing cost, convenient steering control and contribution to popularization and use.

Drawings

FIG. 1 is a schematic view of a vehicle intelligent differential device according to the present utility model;

FIG. 2 is a schematic front view of the differential system of the present utility model;

FIG. 3 is a schematic cross-sectional view of a differential system according to the present utility model;

FIG. 4 is a schematic left-hand view of the differential system of the present utility model;

FIG. 5 is a right side schematic view of the differential system of the present utility model;

FIG. 6 is a schematic perspective view of a differential system according to the present utility model;

FIG. 7 is a schematic diagram of an assembly structure of a left sun gear and a left planet gear according to the present utility model;

FIG. 8 is a schematic view of an assembled double-sided steering rack in accordance with the present utility model;

in the figure:

a differential system 100; a left bevel gear 110; right conical gear 120; differential bevel gear 130; a power input shaft 140; a left end 141; a right end 142; a differential input shaft 150; a left gear engagement mechanism 160; a left sun gear 161; a left planetary gear 162; a left ring gear 163; a right gear engagement mechanism 170; a right sun gear 171; a right planetary gear 172; a right ring gear 173; a left wheel output module 180; a right wheel output module 190;

a steering control system 200; a drive shaft 201; a steering shaft 202; a turbine 210; a worm 220; a driving motor 230; a motor controller 240; a left governor control 250; a left fixed shaft 251; a left speed control gear 252; a left rotation speed sensor 253; a right governor controller 260; a right fixed shaft 261; a right speed control gear 262; a right rotation speed sensor 263; a double-sided steering rack 270; steering gear 280; a speed sensor 290; a power fifth wheel 300; power input wheel 400.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 8 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-8: an intelligent differential device for a vehicle comprises a differential system and a steering control system, wherein the steering control system is used for monitoring the steering of the vehicle and controlling the differential system; the differential system comprises a left conical gear, a right conical gear, a differential conical gear, a power input shaft and a differential input shaft, wherein the left conical gear and the right conical gear are respectively arranged on the left side and the right side of the power input shaft in a rotating mode, the differential conical gear is simultaneously meshed with the left conical gear and the right conical gear, the differential input shaft is arranged on the differential conical gear, the left end of the power input shaft is in transmission connection with the outer end of the left conical gear through a left gear meshing mechanism, the right end of the power input shaft is in transmission connection with the outer end of the right conical gear through a right gear meshing mechanism, a left wheel output module and a right wheel output module are respectively arranged at the outer end of the left gear meshing mechanism and the outer end of the right gear meshing mechanism, and the steering control system provides differential power input for the differential input shaft.

Specifically, as shown in fig. 1 and 8, an intelligent differential device for a vehicle includes a differential system 100 and a steering control system 200, the steering control system 200 being for monitoring steering of the vehicle and controlling the differential system 100;

the differential system 100 comprises a left bevel gear 110, a right bevel gear 120, a differential bevel gear 130, a power input shaft 140 and a differential input shaft 150, wherein the left bevel gear 110 and the right bevel gear 120 are respectively rotatably arranged on the left side and the right side of the power input shaft 140, the differential bevel gear 130 is simultaneously meshed with the left bevel gear 110 and the right bevel gear 120, the differential input shaft 150 is arranged on the differential bevel gear 130, the left end of the power input shaft 140 and the outer end of the left bevel gear 110 are in transmission connection through a left gear meshing mechanism 160, the right end of the power input shaft 140 and the outer end of the right bevel gear 120 are in transmission connection through a right gear meshing mechanism 170, a left wheel output module 180 and a right wheel output module 190 are respectively arranged on the outer end of the left gear meshing mechanism 160 and the outer end of the right gear meshing mechanism 170, and the steering control system 200 provides differential power input for the differential input shaft 150.

According to another embodiment of the present utility model, as shown in fig. 4 and 3, the left gear engagement mechanism 160 includes a left sun gear 161, three left planet gears 162 and a left ring gear 163, the left sun gear 161 is fixedly disposed on the power input shaft 140 located outside the left conical gear 110, all the left planet gears 162 are rotationally and circumferentially uniformly rotationally disposed on the outer end surface of the left conical gear 110, the left ring gear 163 is simultaneously and internally engaged with all the left planet gears 162, the left wheel output module 180 is fixedly disposed on the outer end surface of the left ring gear 163, and the left sun gear 161 is engaged with the left planet gears 162.

In this embodiment, the number of the left planetary gears 162 is three, and it is obvious that other numbers of the left planetary gears 162 can be used, for example, four, which can also have the same transmission effect.

According to another embodiment of the present utility model, as shown in fig. 3, the left end portion 141 of the power input shaft 140 protrudes from the left sun gear 161, and the center of the left ring gear 163 is rotatably provided on the left end portion 141 of the power input shaft 140.

According to another embodiment of the present utility model, as shown in fig. 5 and 3, the right gear engagement mechanism 170 includes a right sun gear 171, three right planet gears 172 and a right ring gear 173, the right sun gear 171 is fixedly disposed on the power input shaft 140 located outside the right bevel gear 120, all the right planet gears 172 are rotationally and circumferentially uniformly rotationally disposed on an outer end surface of the right bevel gear 120, the right ring gear 173 is internally engaged with all the right planet gears 172 at the same time, the right wheel output module 190 is fixedly disposed on an outer end surface of the right ring gear 173, and the right sun gear 171 is engaged with the right planet gears 172.

In this embodiment, the number of the right planetary gears 172 is three, and it is obvious that other numbers of the right planetary gears 172, such as four, can be used to achieve the same transmission effect.

According to another embodiment of the present utility model, as shown in fig. 3, the right end 142 of the power input shaft 140 protrudes out of the right sun gear 171, and the center of the right ring gear 173 is rotatably provided on the right end 142 of the power input shaft 140.

According to another embodiment of the present utility model, as shown in fig. 2, 3 and 6, a power connection wheel 300 is fixedly disposed on the power input shaft 140 between the left conical gear 110 and the right conical gear 120, the power connection wheel 300 adopts a conical gear, and the power connection wheel 300 is powered by a power input wheel 400.

According to another embodiment of the present utility model, as shown in fig. 1 and 8, the steering control system 200 includes a turbine 210, a worm 220, a driving motor 230, a motor controller 240, a left steering controller 250, a right steering controller 260, a double-sided steering rack 270, a steering gear 280, and a speed sensor 290, wherein the turbine 210 is fixedly disposed on the differential input shaft 150, the worm 220 is connected to an output shaft of the driving motor 230 and is used for driving the turbine 210 to rotate, the speed sensor 290 is used for measuring the speed of a driving shaft 201 of a vehicle, the steering gear 280 is fixedly disposed at a lower end of a steering shaft 202 of the vehicle, the steering gear 280 is engaged with one side of the double-sided steering rack 270, the left steering controller 250 and the right steering controller 260 are respectively engaged with both ends of the other side of the double-sided steering rack 270, and a rack length of the other side of the double-sided steering rack 270 is smaller than a distance between a point of engagement of the left steering rack 250 and the double-sided steering rack 270 and a steering motor 260, and the distance of the left steering rack 260 and the right steering rack 260, and the speed controller 230 are interconnected with the speed sensor 260 and the right steering controller and the speed sensor 260.

According to another embodiment of the present utility model, as shown in fig. 8, the left speed controller 250 includes a left fixed shaft 251, a left speed control gear 252, and a left rotational speed sensor 253, the left speed control gear 252 is rotatably disposed on the left fixed shaft 251, the left rotational speed sensor 253 is used to measure the direction and position of the left speed control gear 252, and the left rotational speed sensor 253 is signal-interconnected with the motor controller 240.

According to another embodiment of the present utility model, as shown in fig. 8, the right speed controller 260 includes a right fixed shaft 261, a right speed control gear 262, and a right rotational speed sensor 263, the right speed control gear 262 is rotatably disposed on the right fixed shaft 261, the right rotational speed sensor 263 is used to measure the direction and position of the right speed control gear 262, and the right rotational speed sensor 263 is signal-interconnected with the motor controller 240.

According to another embodiment of the present utility model, as shown in fig. 2 and 3, the left wheel output module 180 employs a wheel axle. In this embodiment, the left wheel output module 180 is a wheel axle, and it is apparent that other types of wheel hubs may be used.

According to another embodiment of the present utility model, as shown in fig. 2 and 3, the right wheel output module 190 employs a wheel axle. In this embodiment, the right wheel output module 190 employs a wheel axle, and it should be apparent that other types of wheel hubs may be employed.

The working method (or working principle) of the utility model is as follows:

when the vehicle turns, the speed sensor 290 monitors that the transmission shaft 201 of the vehicle is in a rotating state, the steering wheel of the vehicle rotates left or right to drive the steering shaft 202 to rotate left or right, the steering gear 280 fixedly arranged at the lower end of the steering shaft 202 of the vehicle drives the double-sided steering rack 270 to move left or right, the double-sided steering rack 270 drives the left speed regulating controller 250 or the right speed regulating controller 260 to move and mesh, the motor controller 240 monitors signals of the left speed regulating controller 250 or the right speed regulating controller 260 and then controls the driving motor 230 to rotate forward or reverse, and then the differential bevel gear 130 is driven to rotate forward or reverse through the transmission of the worm 220 and the turbine 210, so that the left inner gear ring 163 and the right inner gear ring 173 rotate at different rotation speeds to drive the left wheel output module 180 and the right wheel output module 190 to rotate at different rotation speeds, and the turning of the vehicle is realized. Specifically, since the differential bevel gear 130 rotates to drive the left bevel gear 110 and the right bevel gear 120 to rotate in opposite directions, the left planetary gear 162 and the right planetary gear 172 rotatably disposed on the outer end surfaces of the left bevel gear 110 and the right bevel gear 120 rotate around the power input shaft 140 in opposite directions, so that the rotation speed of the left wheel output module 180 is increased or decreased, and simultaneously, the variation of the rotation speed of the left wheel output module 180 is compensated for the right wheel output module 190, that is, when the rotation speed of the left wheel output module 180 is increased by a certain value, the rotation speed of the right wheel output module 190 is correspondingly decreased by the same value.

When the vehicle is in a straight running state, the speed sensor 290 monitors that the transmission shaft 201 of the vehicle is in a rotating state, the left speed regulation controller 250 and the right speed regulation controller 260 are simultaneously in a separating state with the double-sided steering rack 270, the left speed regulation controller 250 and the right speed regulation controller 260 can not generate signals, the turbine 210 and the worm 220 have a self-locking function, the differential bevel gear 130 is in a static state, the left bevel gear 110 and the right bevel gear 120 are in a locking state, the left annular gear 163 and the right annular gear 173 are further rotated at constant speed, the left wheel output module 180 and the right wheel output module 190 are rotated at constant speed, and the straight running of the vehicle is realized.

When the vehicle is stationary in place, the speed sensor 290 monitors that the propeller shaft 201 of the vehicle is in a stopped state, and the motor controller 240 controls the driving motor 230 to be in a stopped state.

The utility model has the advantages of simple structure and manufacturing process, low manufacturing cost, convenient steering control and contribution to popularization and use.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. An intelligent differential device for a vehicle, characterized in that: comprises a differential system (100) and a steering control system (200), the steering control system (200) being used for monitoring the steering of the vehicle and controlling the differential system (100);

the differential system (100) comprises a left conical gear (110), a right conical gear (120), a differential conical gear (130), a power input shaft (140) and a differential input shaft (150), wherein the left conical gear (110) and the right conical gear (120) are respectively arranged on the left side and the right side of the power input shaft (140) in a rotating mode, the differential conical gear (130) is simultaneously meshed with the left conical gear (110) and the right conical gear (120), the differential input shaft (150) is arranged on the differential conical gear (130), the left end of the power input shaft (140) is in transmission connection with the outer end of the left conical gear (110) through a left gear meshing mechanism (160), the right end of the power input shaft (140) is in transmission connection with the outer end of the right conical gear (120) through a right gear meshing mechanism (170), and a left wheel output module (180) and a right wheel output module (190) are respectively arranged at the outer end of the left gear meshing mechanism (160) and the outer end of the right gear meshing mechanism (170). The steering control system (200) provides differential power input to the differential input shaft (150).

2. The intelligent differential apparatus for a vehicle as set forth in claim 1, wherein: the left gear meshing mechanism (160) comprises a left sun gear (161), three or four left planet gears (162) and a left annular gear (163), the left sun gear (161) is fixedly arranged on the power input shaft (140) positioned on the outer side of the left conical gear (110), all the left planet gears (162) rotate and are circumferentially and uniformly rotated to be arranged on the outer end face of the left conical gear (110), the left annular gear (163) and all the left planet gears (162) are simultaneously and internally meshed, the left wheel output module (180) is fixedly arranged on the outer end face of the left annular gear (163), and the left sun gear (161) is meshed with the left planet gears (162).

3. The intelligent differential apparatus for a vehicle according to claim 2, wherein: a left end portion (141) of the power input shaft (140) extends out of the left sun gear (161), and a center of the left ring gear (163) is rotatably arranged on the left end portion (141) of the power input shaft (140).

4. The intelligent differential apparatus for a vehicle according to claim 2, wherein: the right gear meshing mechanism (170) comprises a right sun gear (171), three or four right planet gears (172) and a right inner gear ring (173), wherein the right sun gear (171) is fixedly arranged on a power input shaft (140) positioned on the outer side of the right conical gear (120), all the right planet gears (172) rotate and are uniformly rotated circumferentially and are arranged on the outer end face of the right conical gear (120), the right inner gear ring (173) is meshed with all the right planet gears (172) simultaneously and internally, a right wheel output module (190) is fixedly arranged on the outer end face of the right inner gear ring (173), and the right sun gear (171) is meshed with the right planet gears (172).

5. The intelligent differential apparatus for a vehicle according to claim 4, wherein: a right end (142) of the power input shaft (140) extends out of the right sun gear (171), and the center of the right annular gear (173) is rotatably arranged on the right end (142) of the power input shaft (140).

6. The intelligent differential apparatus for a vehicle as set forth in claim 1, wherein: the power input shaft (140) between the left conical gear (110) and the right conical gear (120) is fixedly provided with a power connecting wheel (300), the power connecting wheel (300) adopts a conical gear, and the power connecting wheel (300) realizes power input by the power input wheel (400).

7. An intelligent differential apparatus for a vehicle according to any one of claims 1 to 6, characterized in that: the steering control system (200) comprises a turbine (210), a worm (220), a driving motor (230), a motor controller (240), a left speed regulating controller (250), a right speed regulating controller (260), a double-sided steering rack (270), a steering gear (280) and a speed sensor (290), wherein the turbine (210) is fixedly arranged on the differential input shaft (150), the worm (220) is connected with an output shaft of the driving motor (230) and is used for driving the turbine (210) to rotate, the speed sensor (290) is used for measuring the speed of a transmission shaft (201) of a vehicle, the steering gear (280) is fixedly arranged at the lower end of a steering shaft (202) of the vehicle, the steering gear (280) is meshed with one side of the double-sided steering rack (270), the left speed regulating controller (250) and the right speed regulating controller (260) are respectively meshed with two ends of the other side of the double-sided steering rack (270), and the length of the rack (270) is smaller than the length of the left speed regulating controller (250) which is meshed with the other side of the double-sided steering rack (270), and the right speed regulating controller (260) is meshed with the right speed regulating controller (260) which is meshed with one side of the double-sided steering rack (270), and the double-sided steering rack (270) which is meshed with the left speed regulating controller (270) The drive motor (230) and the speed sensor (290) are both signally interconnected with the motor controller (240).

8. The intelligent differential apparatus for a vehicle according to claim 7, wherein: the left speed regulation controller (250) comprises a left fixed shaft (251), a left speed regulation control gear (252) and a left rotating speed sensor (253), the left speed regulation control gear (252) is rotatably arranged on the left fixed shaft (251), the left rotating speed sensor (253) is used for measuring the direction and the position of the left speed regulation control gear (252), and the left rotating speed sensor (253) is in signal interconnection with the motor controller (240).

9. The intelligent differential apparatus for a vehicle according to claim 7, wherein: the right speed regulation controller (260) comprises a right fixed shaft (261), a right speed regulation control gear (262) and a right rotating speed sensor (263), the right speed regulation control gear (262) is rotatably arranged on the right fixed shaft (261), the right rotating speed sensor (263) is used for measuring the direction and the position of the right speed regulation control gear (262), and the right rotating speed sensor (263) is in signal interconnection with the motor controller (240).

10. The intelligent differential apparatus for a vehicle as set forth in claim 1, wherein: the left wheel output module (180) adopts a wheel shaft or a wheel hub.