Torque vectoring system

Abstract

The utility model discloses a torque vector distribution system which comprises a differential mechanism, one side of the differential mechanism is connected with a left half shaft, the other side of the differential mechanism is connected with a right half shaft, and the differential mechanism is used for enabling hubs arranged on the left half shaft and the right half shaft to achieve different rotating speeds. A transmission assembly is arranged on one side of the differential mechanism and at least comprises a first planet row and a second planet row which share the same planet carrier, the first planet row is provided with a first sun gear and a first gear ring, the first sun gear is arranged on a shell of the torque transfer mechanism, and power transmission is conducted between the first gear ring and a shell of the differential mechanism. The second planet row is provided with a second sun gear and a second gear ring, the second sun gear is connected with the vector assembly, and power transmission is conducted between the second gear ring and the right half shaft. The transmission assembly has the advantages that torque transmission is conducted between the first gear ring and the first connecting gear, torque transmission is conducted between the second gear ring and the second connecting gear ring, the speed ratio can be increased due to the structure, the overall rotating speed of the transmission assembly can be obviously reduced, heat is greatly reduced, and the service life of the transmission assembly is prolonged. The problems of oil oxidative deterioration, lubrication performance reduction, aging of rubber sealing parts and the like are reduced, and the safety is improved to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile power chassis, specifically, especially relates to a torque vectoring system. BACKGROUND

[0002] As an important solution for the current new energy vehicles, electric vehicles have the advantages of energy saving and environmental protection. At present, there are three driving types of electric vehicles: centralized driving system, the power output by the driving motor is transmitted to the transmission shaft through the transmission, and finally transmitted to the wheel through the differential, one or several motors control four wheels; wheel edge driving system, the driving motor is arranged on the drive axle, and each motor controls a wheel; hub driving system, the motor, reducer and brake are all placed in the hub, and each motor drives a wheel independently to drive the whole vehicle. Among them, the hub driving system, i.e. electric wheel scheme, is most conducive to improving the performance of the whole vehicle. The driving system of the hub motor simplifies the transmission, transmission shaft and differential of the traditional vehicle, directly transmits power to the wheel, greatly improves the transmission efficiency and space utilization. In addition, due to the characteristics of single wheel independent control of the hub motor, whether it is front wheel drive, rear wheel drive or four wheel drive, it can be relatively easily realized, and the hub motor can realize differential turning through the unequal speed rotation of the two wheels, greatly reducing the turning radius of the vehicle, and even realizing spot turning in special cases, which is very valuable for special vehicles.

[0003] Electric wheel technology has entered the product application stage in the field of foreign passenger cars, and domestic hub motor driven cars are in the stage of technical research. Foreign major automobile enterprises have developed electric wheel cars. The United States, Germany, France, Japan and other countries are researching military hybrid power technology, and all of them have adopted the electric wheel drive + hybrid power scheme. It can be seen that the adoption of electric wheel drive has become an important direction for the development of the next generation of electric vehicle drive systems. The electric wheel is the key assembly of this technology, and the car using this technology has the advantages of energy saving, high efficiency of brake energy recovery, simplified vehicle structure, etc.

[0004] The current electric wheel of a car mostly adopts a direct drive type hub motor scheme, which directly drives the wheel by a low-speed outer rotor motor. However, due to the insufficient output torque of the motor, the development of the electric wheel is greatly hindered. In the working conditions of starting, climbing and heavy load, which require large torque, the motor requires large current input, which not only easily damages the battery and permanent magnet, but also has low motor efficiency and is easy to heat. In order to ensure the large starting torque and good dynamic performance, the motor has high requirements, which is difficult to achieve in technology.

[0005] A torque vectoring device for a vehicle is disclosed in Chinese Patent No. 201880061288.X, which includes an electric motor connected to a differential mechanism through a first planetary gear set and a second planetary gear set; the first planetary gear set and the second planetary gear set share a common ring gear; the first planetary gear set connects the electric motor to a carrier of the differential; the second planetary gear set connects the electric motor to an output shaft; the rotation axes of the first planetary gear set and the second planetary gear set are configured to be away from the output shaft. However, the same common ring gear shared by the device causes the speed ratio of the device to be small, and the planetary gear set needs to operate at a high speed to control the torque of the differential, but the planetary gear set operating at a high speed causes the temperature in the torque transfer mechanism to rise. Since the device is arranged in the chassis of the vehicle, it does not have a cooling device, and this design causes a serious lack of heat dissipation, which can cause the oil to oxidize and deteriorate, reduce the lubricating performance and cooling effect, cause abnormal wear of the gears, bearings and other components, and reduce the transmission efficiency. At the same time, it also accelerates the aging of rubber seals (such as oil seals), causing the transmission to leak oil, further weakening the heat dissipation capacity and polluting the surrounding components, and posing a safety hazard. Practical new type content

[0006] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a torque vectoring system.

[0007] The purpose of the present utility model is achieved by the following technical solutions:

[0008] A torque vectoring system, comprising

[0009] A differential is connected to a left half shaft on one side and a right half shaft on the other side, and is used to realize different rotation speeds of the wheel hubs arranged on the left half shaft and the right half shaft;

[0010] One side of the differential is provided with a transmission assembly, the transmission assembly at least includes a first planetary row and a second planetary row sharing the same carrier, the first planetary row has a first sun gear and a first ring gear, the first sun gear is arranged on the shell of the torque transfer mechanism, and the first ring gear is in power transmission with the housing of the differential; the second planetary row has a second sun gear and a second ring gear, the second sun gear is connected with the vector assembly, and the second ring gear is in power transmission with the right half shaft.

[0011] Preferably, the first planetary row further has a first planetary gear, the first planetary gear is engaged with the first sun gear and the first ring gear, and the first ring gear is engaged with a first connecting gear arranged on the differential housing.

[0012] Preferably, the second planetary gear set further comprises a second planetary gear engaged with the second sun gear and a second ring gear engaged with a second connecting ring gear provided on the right half shaft.

[0013] Preferably, the same planet carrier is provided between the first planetary gear and the second planetary gear.

[0014] Preferably, the vector assembly comprises at least a vector motor, a reducer is fixed on the motor shaft of the vector motor, and the other side of the reducer is fixedly connected with the second sun gear.

[0015] Preferably, the vector assembly comprises at least a support shaft fixed on the second sun gear, a driven gear is fixed on the support shaft, a vector motor is arranged on one side of the support shaft, a driving gear is fixed on the motor shaft of the vector motor, a linkage shaft is further arranged between the motor shaft of the vector motor and the support shaft, a first linkage gear and a second linkage gear are fixed on the linkage shaft, the first linkage gear is engaged with the driving gear, and the second linkage gear is engaged with the driven gear.

[0016] Preferably, the vector assembly comprises at least a support shaft fixed on the second sun gear, a driven gear is fixed on the support shaft, a vector motor is arranged on one side of the support shaft, a driving gear is fixed on the motor shaft of the vector motor, a linkage shaft is further arranged on the side of the motor shaft of the vector motor away from the support shaft, a first linkage gear and a second linkage gear are fixed on the linkage shaft, the first linkage gear is engaged with the driving gear, and the second linkage gear is engaged with the driven gear.

[0017] Preferably, the vector assembly comprises at least a support shaft fixed on the second sun gear, a driven gear is fixed on the support shaft, a vector motor is arranged on one side of the support shaft, a driving gear is fixed on the motor shaft of the vector motor, and the driving gear is engaged with the driven gear.

[0018] Preferably, a disconnecting device is arranged between the first sun gear and the shell of the torque transfer mechanism.

[0019] Preferably, a disconnecting device is arranged between the second sun gear and the vector assembly.

[0020] The beneficial effects of the utility model mainly include:

[0021] 1. The layout of the first planetary gear set and the second planetary gear set (the first ring gear and the first connecting gear arranged on the differential housing transmit torque, and the second ring gear and the second connecting gear arranged on the right half shaft transmit torque), which can cause the speed ratio to increase, significantly reduce the overall speed of the transmission assembly, greatly reduce the generation of heat, reduce the problems of oil oxidation deterioration, reduce the lubrication performance, and rubber seal aging, and maximize the safety.

[0022] 2. The first connecting gear and the second connecting gear can be adjusted in specification in time according to the demand, so as to adjust the torque difference between the left half shaft and the right half shaft, so as to meet the use under various working conditions and improve the applicability. In addition, the system has small changes to the traditional differential, low modification cost, and is convenient to popularize and use.

[0023] 3. The system has a torque distribution function, taking into account the energy consumption problem and driving experience in yaw dynamics control; can effectively improve the economy, maneuvering stability and active safety of the automobile. In the case of the same specification vector motor, the torque of the automobile can be enhanced, the adhesion can be improved, so as to meet the driving in the high turning or poor adhesion road surface or severe state, which can effectively improve the economy, maneuvering stability and active safety of the automobile.

[0024] 4. The double planetary gear sets share a planet carrier, which can reduce the number of parts, further reduce the weight and enhance the heat dissipation capacity, realize the overall light weight, and also can reduce the cost.

[0025] 5. The system only uses two sets of planetary gear sets, simplifies the structure, greatly reduces the unsprung mass, and greatly relieves the adverse effects of the unsprung mass on the smoothness and operability of the automobile.

[0026] 6. In the utility model scheme, the vector motor, the first planetary gear set, the second planetary gear set and the differential are connected in a fully rigid manner, which can maximize the control accuracy of the system, the control accuracy is within 10ms, and the feedback speed is fast. BRIEF DESCRIPTION OF DRAWINGS

[0027] The technical scheme of the utility model will be further described below in combination with the drawings:

[0028] Figure 1 : The structure schematic view of the first embodiment of the utility model;

[0029] Figure 2 : The structure schematic view of the second embodiment of the utility model;

[0030] Figure 3 : The structure schematic view of the third embodiment of the utility model;

[0031] Figure 4The fourth embodiment of the utility model has a structure diagram. DETAILED DESCRIPTION

[0032] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments are not limited to the utility model, and the changes in structure, method or function made by those skilled in the art based on these embodiments are all included in the protection scope of the utility model.

[0033] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings.

[0035] As Figures 1 to 4 shown, the utility model discloses a kind of torque vector distribution systems, including differential 1, with prior art, the differential power connection in power main drive mechanism, main drive mechanism can be electric, can be hybrid, or other realizable scheme. The differential is connected with left half axle 2 on one side, and right half axle 3 is connected on the other side, and the differential 1 is used to make the wheel hub on the left half axle 2 and right half axle 3 realize different rotating speeds.

[0036] In the utility model, the differential 1 is equipped with transmission assembly 4 on one side, and the transmission assembly 4 at least includes first planetary row 6 and second planetary row 7 sharing same planet carrier 5, above only two sets of planetary row are used, simplify structure, greatly reduce non-spring mass, greatly relieve the adverse effects of non-spring mass on the smoothness and operability of automobile driving.

[0037] Specifically, the first planetary row 6 has first sun gear 61 and first ring gear 62, the first sun gear 61 is arranged on the shell of the torque transfer mechanism, and the first ring gear 62 is in power transmission with the shell of the differential 1. The first planetary row 6 also has first planetary gear 63, the first planetary gear 63 is engaged with the first sun gear 61 and the first ring gear 62, the outer circumferential surface of the first ring gear 62 is provided with teeth, and the first ring gear 62 is engaged with the first connecting gear 11 arranged on the shell of the differential 1.

[0038] The second planetary gear set 7 has a second sun gear 71 connected with the vector assembly 8 and a second ring gear 72 in power transmission with the right half axle 3.

[0039] In the above, the first ring gear 62 and the second ring gear 72 are the largest diameter components in the first planetary gear set 6 and the second planetary gear set 7, while the first planetary gear 63 and the second planetary gear 73 are smaller in size, according to the gear transmission principle, power is transmitted to the first ring gear 62 and the second ring gear 72 through the first planetary gear 63 and the second planetary gear 73, and the first ring gear is in torque transmission with the first connecting gear and the second ring gear is in torque transmission with the second connecting gear, which can cause the speed ratio to increase, significantly reduce the overall speed of the transmission assembly, greatly reduce the generation of heat, reduce the problems of oil oxidation deterioration, reduce the lubrication performance and rubber seal aging, and maximize the safety.

[0040] In addition, the first connecting gear and the second connecting gear in the utility model can adjust the specifications thereof in time according to the requirements, so as to adjust the torque difference between the left half axle and the right half axle, thereby meeting the use under various working conditions and improving the applicability. Specifically, when the specifications of the first connecting gear and the second connecting gear are greatly different, the torque difference between the left half axle and the right half axle is greater, and a large torque can be output at a low speed of the vehicle, thereby significantly shortening the acceleration time during starting and overtaking. At the same time, the vehicle is also endowed with stronger climbing ability, especially on steep slopes or muddy roads, the wheels can be stably driven through low-speed high-torque output, the power interruption or skidding is avoided, and the safety is improved. In addition, the system has less changes to the traditional differential, the modification cost is low, and the use is convenient.

[0041] In the preferred embodiment, the same planet carrier 5 is arranged on the first planetary gear 63 and the second planetary gear 73 and located between the first planetary gear 63 and the second planetary gear 73. The double planetary gear set can reduce the number of parts, further reduce the weight and enhance the heat dissipation capacity, realize the overall light weight, and also reduce the cost. At the same time, the system has a torque distribution function, which takes into account the energy consumption problem and driving experience in yaw dynamics control; can effectively improve the economy, steering stability and active safety of the automobile. In the case of the same specification vector motor, the torque of the automobile can be enhanced, the adhesion can be improved, thereby meeting the driving on the highly turning or poor adhesion road surface or in the harsh state, and the economy of the automobile can be effectively improved.

[0042] As Figure 1As shown, the vector assembly 8 at least includes a vector motor 81, a reducer 82 is fixed on the motor shaft of the vector motor 81, and the other side of the reducer 82 is fixedly connected with the second sun gear 71.

[0043] The working process of the first embodiment is briefly described as follows:

[0044] When the vehicle is normally driven, the first planetary row 6 and the second planetary row 7 are idling without load, and the vector motor 4 is not operated.

[0045] When the vehicle is over the bend, the speed difference appears between the left and right half shafts, the vector motor 4 is started, the motor shaft of the vector motor 4 drives the second sun gear 71 to rotate through the reducer 82, the second sun gear 71 rotates in turn to drive the second connecting gear 31 to rotate through the second planetary gear 73 and the second ring gear 72, so as to transmit power to the right half shaft. At the same time, the second planetary gear 73 rotates to drive the first planetary gear 63 to rotate through the carrier 5, and the first planetary gear 63 rotates to drive the first connecting gear 11 to rotate through the first ring gear 62, so as to transmit power to the housing of the differential 1.

[0046] As Figure 2 As shown, the vector assembly 8 at least includes a second sun gear 71, a support shaft 89 is fixed on the second sun gear 71, and a driven gear 88 is fixed on the support shaft 89; One side of the support shaft 89 is provided with a vector motor 81, a driving gear 87 is fixed on the motor shaft of the vector motor 81; A linkage shaft 86 is further arranged between the motor shaft of the vector motor 81 and the support shaft 89, a first linkage gear 85 and a second linkage gear 84 are fixed on the linkage shaft 86, the first linkage gear 85 is engaged with the driving gear 87, and the second linkage gear 84 is engaged with the driven gear 88.

[0047] The working process of the second embodiment is briefly described as follows:

[0048] When the vehicle is normally driven, the first planetary row 6 and the second planetary row 7 are idling without load, and the vector motor 4 is not operated.

[0049] When the vehicle is turning, the left and right half shafts have speed difference, the vector motor 4 is started, the motor shaft thereof drives the second sun gear 71 to rotate through the driving gear 87, the first linkage gear 85, the linkage shaft 86, the second linkage gear 84, the driven gear 88 and the support shaft 89, the second sun gear 71 rotates to drive the second connecting gear 31 to rotate through the second planetary gear 73 and the second ring gear 72 in turn, thereby transmitting power to the right half shaft. At the same time, the second planetary gear 73 rotates to drive the first planetary gear 63 to rotate through the planet carrier 5, the first planetary gear 63 rotates to drive the first connecting gear 11 to rotate through the first ring gear 62, thereby transmitting power to the housing of the differential 1.

[0050] As shown in Figure 3 the third embodiment of the utility model, the vector assembly 8 at least includes the support shaft 89 fixed on the second sun gear 71, the driven gear 88 is fixed on the support shaft 89;The vector motor 81 is arranged on one side of the support shaft 89, the driving gear 87 is fixed on the motor shaft of the vector motor 81;The linkage shaft 86 is further arranged on the side of the motor shaft of the vector motor 81 away from the support shaft 89, the first linkage gear 85 and the second linkage gear 84 are fixed on the linkage shaft 86, the first linkage gear 85 is engaged with the driving gear 87, and the second linkage gear 84 is engaged with the driven gear 88.

[0051] The working process of the third embodiment is briefly described as follows:

[0052] When the vehicle is normally running, the first planetary row 6 and the second planetary row 7 are idling without load, and the vector motor 4 is not running.

[0053] When the vehicle is turning, the left and right half shafts have speed difference, the vector motor 4 is started, the motor shaft thereof drives the second sun gear 71 to rotate through the driving gear 87, the first linkage gear 85, the linkage shaft 86, the second linkage gear 84, the driven gear 88 and the support shaft 89, the second sun gear 71 rotates to drive the second connecting gear 31 to rotate through the second planetary gear 73 and the second ring gear 72 in turn, thereby transmitting power to the right half shaft. At the same time, the second planetary gear 73 rotates to drive the first planetary gear 63 to rotate through the planet carrier 5, the first planetary gear 63 rotates to drive the first connecting gear 11 to rotate through the first ring gear 62, thereby transmitting power to the housing of the differential 1.

[0054] As shown in Figure 4 the fourth embodiment of the utility model, the vector assembly 8 at least includes the support shaft 89 fixed on the second sun gear 71, the driven gear 88 is fixed on the support shaft 89;The vector motor 81 is arranged on one side of the support shaft 89, the driving gear 87 is fixed on the motor shaft of the vector motor 81;The driving gear 87 is engaged with the driven gear 88.

[0055] The working process of the fourth embodiment is briefly described as follows:

[0056] When the vehicle is running normally, the first planetary gear set 6 and the second planetary gear set 7 are idling without load, and the vector motor 4 is not running.

[0057] When the vehicle is turning, the left and right half shafts have a speed difference, the vector motor 4 is started, the motor shaft drives the second sun gear 71 to rotate through the driving gear 87, the driven gear 88 and the supporting shaft 89, the second sun gear 71 rotates to drive the second connecting ring gear 31 to rotate through the second planetary gear 73 and the second ring gear 72 in turn, thereby transmitting power to the right half shaft. At the same time, the second planetary gear 73 rotates to drive the first planetary gear 63 to rotate through the carrier 5, and the first planetary gear 63 rotates to drive the first connecting gear 11 to rotate through the first ring gear 62, thereby transmitting power to the housing of the differential 1.

[0058] In the utility model, the first sun gear 61 and the shell of the torque transfer mechanism are provided with a disconnecting device 9, or another form: the second sun gear 71 and the vector assembly 8 are provided with a disconnecting device 9.

[0059] The disconnecting device is arranged in the embodiments of the utility model, and the disconnecting device is a preferred embodiment of the utility model. The disconnecting device is a claw clutch, a sliding sleeve clutch or a friction clutch, of course, it can also be other structures, and all belongs to the protection scope of the utility model.

[0060] The disconnecting device can make part of the system separate, which helps to eliminate the mechanical loss related to the rotation of various unused assemblies, thereby improving the overall efficiency of the system.

[0061] The disconnecting device is controlled by an actuator, for example, electromechanical, electromagnetic or hydraulic.

[0062] At present, the disconnecting device is usually arranged in the auxiliary drive system. When the permanent magnet motor is used as an auxiliary motor of the auxiliary drive system on the vehicle, in the non-powered working state, in order to avoid that the auxiliary drive system generates reverse rotating torque (that is, the rotor of the permanent magnet motor will follow the rotation of the differential housing to generate cutting magnetic force line), the disconnecting device in the auxiliary drive system can disconnect the permanent magnet motor and the differential housing. In order to save the energy consumption of the whole vehicle, when the vehicle is running at high speed, the disconnecting device can disconnect the permanent magnet motor on the auxiliary drive system and the differential housing, that is, the auxiliary drive system and the differential housing do not transmit power, and the left and right half shafts normally run at high speed.

[0063] When the torque vectoring system is used with the vehicle auxiliary drive system, when the vehicle is in high speed forward state, if the disconnect device on the auxiliary drive system is disconnected, the left half shaft or the right half shaft and the differential housing will have a speed difference of more than 1000 RPM, due to the rigid connection of the vector motor, the first planetary gear set, the second planetary gear set and the differential, and the speed ratio relationship, the vector motor will run at a speed of more than 20000 RPM, and long time high speed operation will have a significant adverse effect on the thermal balance performance, efficiency and reliability of the torque vectoring system, therefore, the disconnect device of the torque vectoring system also needs to be disconnected.

[0064] Of course, the embodiment of the utility model can also not be provided with a disconnect device, in this way, the vector motor, the first planetary gear set, the second planetary gear set and the differential are connected in a rigid manner, which can maximize the feedback speed of the system.

[0065] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0066] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and any equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. Torque vectoring system, including The differential (1) is connected to the left half-shaft (2) on one side and the right half-shaft (3) on the other side, and is used to enable the wheel hubs set on the left half-shaft (2) and the right half-shaft (3) to achieve different speeds; Its features are: The differential (1) has a transmission assembly (4) on one side. The transmission assembly (4) includes at least a first planetary gear set (6) and a second planetary gear set (7) sharing the same planetary carrier (5). The first planetary gear set (6) has a first sun gear (61) and a first ring gear (62). The first sun gear (61) is mounted on the housing of the torque transfer mechanism. The first ring gear (62) transmits power to the housing of the differential (1). The second planetary gear set (7) has a second sun gear (71) and a second ring gear (72). The second sun gear (71) is connected to the vector assembly (8). The second ring gear (72) transmits power to the right half-shaft (3).

2. The torque vectoring distribution system according to claim 1, characterized in that: The first planetary gear (6) also has a first planetary gear (63), which meshes with the first sun gear (61) and the first ring gear (62), and the first ring gear (62) meshes with a first connecting gear (11) disposed on the differential (1) housing.

3. The torque vectoring distribution system according to claim 2, characterized in that: The second planetary gear (7) also has a second planetary gear (73), which meshes with the second sun gear (71) and the second gear ring (72), and the second gear ring (72) meshes with the second connecting gear ring (31) disposed on the right half shaft (3).

4. The torque vectoring distribution system according to claim 2, characterized in that: The same planet carrier (5) is disposed on the first planetary gear (63) and the second planetary gear (73), and is located between the two.

5. The torque vectoring distribution system according to claim 1, characterized in that: The vector assembly (8) includes at least a vector motor (81), on which a reducer (82) is fixedly mounted, and the other side of the reducer (82) is fixedly connected to the second sun gear (71).

6. The torque vectoring distribution system according to claim 1, characterized in that: The vector assembly (8) includes at least a second sun gear (71) on which a support shaft (89) is fixed, and a driven gear (88) is fixed on the support shaft (89); a vector motor (81) is provided on one side of the support shaft (89), and a driving gear (87) is fixed on the motor shaft of the vector motor (81); a linkage shaft (86) is also provided between the motor shaft of the vector motor (81) and the support shaft (89), and a first linkage wheel (85) and a second linkage wheel (84) are fixed on the linkage shaft (86), the first linkage wheel (85) meshes with the driving gear (87), and the second linkage wheel (84) meshes with the driven gear (88).

7. The torque vectoring distribution system according to claim 1, characterized in that: The vector assembly (8) includes at least a second sun gear (71) on which a support shaft (89) is fixed, and a driven gear (88) is fixed on the support shaft (89); a vector motor (81) is provided on one side of the support shaft (89), and a driving gear (87) is fixed on the motor shaft of the vector motor (81); a linkage shaft (86) is also provided on the side of the motor shaft of the vector motor (81) away from the support shaft (89), and a first linkage wheel (85) and a second linkage wheel (84) are fixed on the linkage shaft (86), the first linkage wheel (85) meshing with the driving gear (87), and the second linkage wheel (84) meshing with the driven gear (88).

8. The torque vectoring distribution system according to claim 1, characterized in that: The vector assembly (8) includes at least a second sun gear (71) on which a support shaft (89) is fixed, and a driven gear (88) is fixed on the support shaft (89); a vector motor (81) is provided on one side of the support shaft (89), and a driving gear (87) is fixed on the motor shaft of the vector motor (81); the driving gear (87) meshes with the driven gear (88).

9. The torque vectoring distribution system according to claim 1, characterized in that: A disconnection device (9) is provided between the first sun gear (61) and the housing of the torque transfer mechanism.

10. The torque vectoring system according to claim 1, characterized in that: A disconnection device (9) is provided between the second sun gear (71) and the vector assembly (8).

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