CN114393991A - Transmission and vehicle - Google Patents

Abstract

The invention discloses a transmission and a vehicle, wherein the transmission includes a first motor, a vector motor, a first planetary row, a second planetary row, a left half shaft and a right half shaft; the first planetary row includes a first sun gear, a first The planetary gear, the first ring gear and the first planet carrier; the second planet row includes the second sun gear, the second planet gear, the second ring gear and the second planet carrier; the first motor is driven by the rotor shaft with the first sun gear The first ring gear is connected with the second sun gear; the vector motor is connected with the first planetary row or the second planetary row; the first planet carrier is connected with the left half shaft; the second ring gear is connected with the right half shaft. The technical solution of the present invention improves the drivability of the vehicle.

Description

Transmissions and Vehicles

technical field

The present invention relates to the technical field of vehicles, and in particular, to a transmission and a vehicle.

Background technique

With the rapid development of the vehicle industry, people's requirements for vehicle performance are getting higher and higher, among which handling is the more concerned performance index.

In the existing vehicle transmission structure, when the vehicle is turning or the adhesion on both sides of the road surface is different, the rotational speed of the left and right wheels is different. At this time, the torque received by the left and right wheels cannot be actively adjusted according to the actual working conditions, thus affecting the the drivability of the vehicle.

SUMMARY OF THE INVENTION

The main object of the present invention is to provide a transmission aimed at improving the drivability of a vehicle.

To achieve the above object, the transmission proposed by the present invention includes a first motor, a vector motor, a first planetary row, a second planetary row, a left half shaft and a right half shaft;

The first planetary row includes a first sun gear, a first planetary gear, a first ring gear and a first planet carrier, the first sun gear is meshed with the first planetary gear, and the first planetary gear is connected to the first planetary gear. the first ring gear is engaged, and the first planetary gear is mounted on the first planet carrier;

The second planetary row includes a second sun gear, a second planetary gear, a second ring gear, and a second planet carrier, the second sun gear is meshed with the second planetary gear, and the second planetary gear is connected to the second planetary gear. the second ring gear is engaged, and the second planetary gear is mounted on the second planet carrier;

the first motor is connected to the first sun gear through a rotor shaft;

the first ring gear is drivingly connected with the second sun gear;

the vector motor is connected with the first planetary row or the second planetary row;

the first planet carrier is connected with the left half shaft;

The second ring gear is connected with the right half shaft.

Optionally, the first planetary row and the second planetary row are arranged along the radial direction of the transmission, and the first ring gear and the second sun gear are integrated into an integral structure.

Optionally, the vector motor is connected to the second ring gear.

Optionally, the first planetary row and the second planetary row are arranged along the axial direction of the transmission.

Optionally, the vector motor is connected to the first ring gear.

Optionally, the vector motor is connected to the second ring gear.

Optionally, the vector motor is engaged with the first ring gear or the second ring gear through a motor gear.

Optionally, the second planet carrier is relatively fixed to the stationary portion of the transmission.

Optionally, the rotor shaft is a hollow shaft, and the left half shaft passes through the rotor shaft.

The present invention also provides a vehicle, including the transmission.

In one technical solution of the present invention, by arranging a vector motor connected to the first planetary row or the second planetary row in the transmission, the torque supplied to the left half shaft and the right half shaft can be more reasonably distributed. In this way, on the one hand, the connected first planetary row and the second planetary row can realize the functions of speed change and differential speed at the same time, so as to meet different working conditions such as vehicle straight-line driving and vehicle turning. The transmission structure with the shaft and the bevel gear reduces the number of parts required for the transmission, thereby reducing the overall weight of the transmission and making the transmission lighter, which in turn is beneficial to the lightweight of the vehicle. On the other hand, compared with the transmission structure with parallel shafts and bevel gears in the prior art, the overall volume of the transmission is reduced, the space occupied by the transmission is reduced, and the structure of the transmission is more compact. On the other hand, by arranging a vector motor that can distribute torque in the transmission, it is possible to adjust the torque ratio supplied to the left and right axles when the vehicle is turning, thereby improving the driving performance of the vehicle, improving the driving stability of the vehicle. Sensitivity.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the transmission according to the present invention;

FIG. 2 is a schematic structural diagram of another embodiment of the transmission according to the present invention;

FIG. 3 is a schematic structural diagram of another embodiment of the transmission of the present invention.

Description of reference numbers:

label name label name 10 first motor 120 first planetary gear 11 rotor shaft 130 first ring gear 20 Left half shaft 140 first planet carrier 30 right half shaft 200 second planetary row 40 vector motor 210 second sun gear 41 motor gear 220 second planetary gear 100 first planetary row 230 second ring gear 110 first sun gear 240 second planet carrier

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, "and/or" in the full text includes three solutions, taking A and/or B as an example, including the technical solution of A, the technical solution of B, and the technical solution that A and B satisfy at the same time; in addition, between the various embodiments The technical solutions can be combined with each other, but must be based on those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor is it required by the present invention. within the scope of protection.

With the rapid development of the vehicle industry, people's requirements for vehicle performance are getting higher and higher, among which handling is the more concerned performance index.

In the existing vehicle transmission structure, when the vehicle is turning or the adhesion on both sides of the road surface is different, the rotational speed of the left and right wheels is different. At this time, the torque received by the left and right wheels cannot be actively adjusted according to the difference in rotational speed, thus affecting the vehicle. driving stability.

In view of this, the present invention proposes a transmission.

Referring to FIGS. 1 to 3 , in an embodiment of the present invention, the transmission includes a first motor 10 , a vector motor 40 , a first planetary row 100 , a second planetary row 200 , a left half shaft 20 and a right half shaft 30 .

The first planetary row 100 includes a first sun gear 110, a first planetary gear 120, a first ring gear 130 and a first planetary carrier 140. The first sun gear 110 meshes with the first planetary gear 120, and the first planetary gear 120 engages with the A ring gear 130 is engaged, and the first planetary gear 120 is mounted on the first planetary carrier 140 . Specifically, the first sun gear 110 is located at the center of the first planetary row 100 , the first planetary gear 120 meshes with the outer ring of the first sun gear 110 , and in the circumferential direction of the first sun gear 110 , the first planetary gear 120 may be provided with multiple groups, and the number of groups of the first planetary gears 120 is not limited herein. The first planetary gear 120 is fixed on the first planetary carrier 140 , and the first planetary carrier 140 provides a fixed support for the first planetary gear 120 . At the same time, the first planetary gear 120 also meshes with the inner ring of the first ring gear 130 , that is, the first planetary gear 120 is in a constant meshing state with the adjacent first sun gear 110 and the first ring gear 130 , thereby realizing the three transmission between.

The second planetary row 200 includes a second sun gear 210, a second planetary gear 220, a second ring gear 230 and a second planetary carrier 240. The second sun gear 210 meshes with the second planetary gear 220, and the second planetary gear 220 is engaged with the The two ring gears 230 are engaged, and the second planetary gear 220 is mounted on the second planetary carrier 240 . Specifically, the second sun gear 210 is located at the center of the second planetary row 200 , the second planetary gear 220 meshes with the outer ring of the second sun gear 210 , and in the circumferential direction of the second sun gear 210 , the second planetary gear 220 may be provided with multiple groups, and the number of groups of the second planetary gears 220 is not limited herein. The second planetary gear 220 is fixed on the second planetary carrier 240 , and the second planetary carrier 240 provides a fixed support for the second planetary gear 220 . At the same time, the second planetary gear 220 also meshes with the inner ring of the second ring gear 230 , that is, the second planetary gear 220 is in a constant meshing state with the adjacent second sun gear 210 and the second ring gear 230 , so as to realize the three transmission between.

The first electric machine 10 is drive-connected with the first sun gear 110 through the rotor shaft 11 . Specifically, the first motor 10 is a power source of the transmission, and the power of the first motor 10 is transmitted to the transmission through the rotor shaft 11 . The first motor 10 is connected to the first sun gear 110 of the first planetary row 100 . In one embodiment, the rotor shaft 11 of the first motor 10 is directly spline-connected to the first sun gear 110 . Of course, the rotor shaft 11 of the first motor 10 can also be spline-connected to the high-speed shaft, and the high-speed shaft is then spline-connected to the first sun gear 110 . The connection between the first motor 10 and the first sun gear 110 realizes the transmission of the power of the first motor 10 to the first planetary row 100 .

The first ring gear 130 is drivingly connected with the second sun gear 210 . Specifically, the transmission connection between the first planetary row 100 and the second planetary row 200 is achieved through the first ring gear 130 and the second sun gear 210, so that the power of the first motor 10 can be transmitted to the second planetary row 100 through the first planetary row 100. Two planets row 200.

The vector motor 40 is connected to the first planetary row 100 or the second planetary row 200 . Specifically, the vector motor 40 is formed of a motor whose rotational speed and rotational direction can be controlled. The vector motor 40 can adjust the ratio of the torque supplied to the left half shaft 20 and the right half shaft 30 when the vehicle is turning, so that the left and right wheels receive the driving torque distributed by the vector control assembly, thereby improving the drivability of the vehicle and increasing the The driving stability and agility of the vehicle. The vector motor 40 is connected to the first planetary row 100 or the second planetary row 200 so as to adjust the torque distributed to the left half shaft 20 and the right half shaft 30 through the first planetary row 100 or the second planetary row 200 .

The first planet carrier 140 is connected with the left half shaft 20 ; the second ring gear 230 is connected with the right half shaft 30 . Specifically, the half shafts are used to transmit power between the transmission and the drive wheels. The left half shaft 20 is used to transmit the power of the first motor 10 to the left wheel of the vehicle, and the right half shaft 30 is used to transmit the power of the first motor 10 to the right wheel of the vehicle. That is, the left half shaft 20 and the right half shaft 30 are the power output shafts of the transmission. The left half shaft 20 is connected to the first planet carrier 140 of the first planetary row 100 , the right half shaft 30 is connected to the second ring gear 230 of the second planetary row 200 , and the power of the first motor 10 is transmitted through the first planetary row 100 to The left half shaft 20 is transmitted to the right half shaft 30 through the second planetary row 200, so as to realize the driving of the vehicle wheels.

In this way, by arranging the connected first planetary row 100 and the second planetary row 200 in the transmission, the functions of speed change and differential speed can be realized at the same time, so as to meet different working conditions such as vehicle straight running and vehicle turning. On the one hand, compared with the transmission structure using parallel shafts and bevel gears in the prior art, the number of parts required for the transmission is reduced, thereby reducing the overall weight of the transmission and making the transmission lighter, which is beneficial to the lightness of the vehicle. quantify. On the other hand, compared with the transmission structure with parallel shafts and bevel gears in the prior art, the overall volume of the transmission is reduced, the space occupied by the transmission is reduced, and the structure of the transmission is more compact. On the other hand, by arranging the vector motor 40 that can distribute the torque in the transmission, the torque ratio supplied to the left half shaft 20 and the right half shaft 30 when the vehicle is turning can be adjusted, thereby improving the driving performance of the vehicle and improving the vehicle driving stability and agility.

One technical solution of the present invention provides a more reasonable distribution of the torque supplied to the left half shaft 20 and the right half shaft 30 by arranging the vector motor 40 connected to the first planetary row 100 or the second planetary row 200 in the transmission. In this way, on the one hand, the connected first planetary row 100 and the second planetary row 200 can realize the functions of speed change and differential speed at the same time, so as to meet different working conditions such as vehicle straight running and vehicle turning, compared with the prior art The transmission structure with parallel shafts and bevel gears is adopted, which reduces the number of parts required for the transmission, thereby reducing the overall weight of the transmission and making the transmission lighter, which in turn is beneficial to the lightweight of the vehicle. On the other hand, compared with the transmission structure with parallel shafts and bevel gears in the prior art, the overall volume of the transmission is reduced, the space occupied by the transmission is reduced, and the structure of the transmission is more compact. On the other hand, by arranging the vector motor 40 that can distribute the torque in the transmission, the torque ratio supplied to the left half shaft 20 and the right half shaft 30 can be adjusted when the vehicle is turning, thereby improving the driving performance of the vehicle and the driving of the vehicle. Stability and Sensitivity.

Further, the first planetary row 100 and the second planetary row 200 are arranged along the radial direction of the transmission, and the first ring gear 130 and the second sun gear 210 are integrated into a single structure. Specifically, the axial direction of the transmission is the axial direction of the left half shaft 20 and the right half shaft 30 , and the radial direction of the transmission is a direction perpendicular to the axial direction. The components of the first planetary row 100 are distributed along the radial direction of the transmission, the components of the second planetary row 200 are distributed along the radial direction of the transmission, and the first planetary row 100 and the second planetary row 200 are arranged along the radial direction of the transmission. At the same time, the first ring gear 130 and the second sun gear 210 are integrated into a single structure, that is, the first ring gear 130 and the second sun gear 210 are shared gears, thereby further saving the number of parts and reducing the overall quality of the transmission. Conducive to the lightweight of the transmission. The radial distribution of the first planetary row 100 and the second planetary row 200 also saves the axial length of the transmission, so that the transmission can be arranged in a nacelle with less axial space, thereby expanding the application range of the transmission.

Furthermore, the vector motor 40 is connected with the second ring gear 230 . Specifically, in an embodiment, the first planetary row 100 and the second planetary row 200 are arranged along the radial direction of the transmission, the first ring gear 130 and the second sun gear 210 are integrated into a single structure, and the vector motor 40 can be connected with the second ring gear 230 . In this way, the vector motor 40 can distribute the torque to the right half shaft 30 and the left half shaft 20 through the second ring gear 230, so as to realize the distribution of the torque ratio between the left half shaft 20 and the right half shaft 30 through the vector motor 40, thereby improving the vehicle improve the driving performance and improve the driving stability and agility of the vehicle. Of course, the vector motor 40 may also be connected to the first ring gear 130 , that is, the vector motor 40 may be connected to a gear shared by the first ring gear 130 and the second sun gear 210 . In this way, the vector motor 40 can distribute torque to the left half shaft 20 and the right half shaft 30 through the first ring gear 130 .

Further, the first planetary row 100 and the second planetary row 200 are arranged along the axial direction of the transmission. Specifically, the axial direction of the transmission is the axial direction of the left half shaft 20 and the right half shaft 30 , and the radial direction of the transmission is a direction perpendicular to the axial direction. The components of the first planetary row 100 are distributed along the radial direction of the transmission, the components of the second planetary row 200 are distributed along the radial direction of the transmission, and the first planetary row 100 and the second planetary row 200 are arranged along the axial direction of the transmission. This arrangement makes the structure of the transmission more compact, which is beneficial to the arrangement of the transmission in the engine room.

Furthermore, the vector motor 40 is connected with the first ring gear 130 . Specifically, in an embodiment, the first planetary row 100 and the second planetary row 200 are arranged along the axial direction of the transmission, and the vector motor 40 is connected to the first ring gear 130 . In this way, the vector motor 40 can distribute the torque to the left half shaft 20 and the right half shaft 30 through the first ring gear 130 , so as to realize the distribution of the torque ratio between the left half shaft 20 and the right half shaft 30 through the vector motor 40 , thereby improving the vehicle improve the driving performance and improve the driving stability and agility of the vehicle.

Furthermore, the vector motor 40 is connected with the second ring gear 230 . Specifically, in an embodiment, the first planetary row 100 and the second planetary row 200 are arranged along the axial direction of the transmission, and the vector motor 40 is connected with the second ring gear 230 . In this way, the vector motor 40 can distribute the torque to the left half shaft 20 and the right half shaft 30 through the second ring gear 230, so as to realize the distribution of the torque ratio between the left half shaft 20 and the right half shaft 30 through the vector motor 40, thereby improving the vehicle improve the driving performance and improve the driving stability and agility of the vehicle.

Further, the vector motor 40 meshes with the first ring gear 130 or the second ring gear 230 through the motor gear 41 . Specifically, the connection between the vector motor 40 and the first ring gear 130 or the second ring gear 230 is realized through the motor gear 41 , and the motor gear 41 meshes with the first ring gear 130 or the second ring gear 230 , while the rotor shaft of the vector motor 40 is Spline connection with the motor gear 41 , so that the torque of the vector motor 40 is transmitted to the motor gear 41 through the rotor shaft of the vector motor 40 , and then transmitted to the first ring gear 130 or the second ring gear 230 .

Further, the second planet carrier 240 is relatively fixed to the stationary part of the transmission. Specifically, the second planetary carrier 240 is a fixed part, the second planetary row 200 is relatively fixed to the stationary part of the transmission through the second planetary carrier 240 , and the second planetary carrier 240 provides fixation and support for the second planetary row 200 , and furthermore The installation stability of the first planetary row 100 is improved. The stationary part of the transmission refers to the stationary parts in the transmission, such as the transmission housing, the motor stator, the brake hub and other stationary parts. In one embodiment, the second planet carrier 240 is connected with the housing of the transmission by a spline connection or a rectangular tooth connection. In this way, compared with the problem of insufficient structural strength of the planetary row in the prior art, the present invention improves the structural strength of the first planetary row 100 and the second planetary row 200 .

Further, the rotor shaft 11 is a hollow shaft, and the left half shaft 20 passes through the rotor shaft 11 . Specifically, the rotor shaft 11 of the first motor 10 is a hollow shaft, and the left half shaft 20 passes through the middle hollow of the rotor shaft 11 and can freely rotate relative to the rotor shaft 11 to transmit power to the left wheel. In this way, the overall structure of the transmission is made more compact.

The first electric machine 10 is a power source of the transmission for providing power to the transmission. More specifically, the first electric machine 10 includes a stator and a rotor, and the rotor outputs torque to the transmission through the rotor shaft 11 . The torque of the first motor 10 is transmitted to the second planetary row 200 through the first planetary row 100. Under the action of the torque of the first motor 10, the first planetary row 100 and the second planetary row 200 rotate, thereby driving the left half shaft 20 and the right half shaft. The axle 30 rotates, which in turn drives the left and right wheels of the vehicle. At the same time, the vector motor 40 can distribute torque to the left half shaft 20 and the right half shaft 30 through the first planetary row 100 and the second planetary row 200 according to actual working conditions, so as to affect the torque received by the left half shaft 20 and the right half shaft 30 Perform vector control.

Referring to FIG. 1 , in an embodiment, the first planetary row 100 and the second planetary row 200 are arranged along the axial direction of the transmission, and the vector motor 40 is connected to the first ring gear 130 . At this time, the transmission path of the torque of the first motor 10 on the left half shaft 20 is: the first motor 10 - the first sun gear 110 - the first planetary gear 120 - the first planet carrier 140 - the left half shaft 20; the first motor The transmission path of the torque of 10 in the right half shaft 30 is: the first motor 10 - the first sun gear 110 - the first planetary gear 120 - the first ring gear 130 - the second sun gear 210 - the second planetary gear 220 - the second Ring gear 230-right half shaft 30.

When the vehicle is going straight, the left and right wheels need to have the same rotational speed and torque. At this time, the vector motor 40 is idling, that is, the vector motor 40 rotates but does not work, so that the vehicle can travel in a straight line. At this time, the rotational speed of the first planetary carrier 140 and the rotational speed of the second ring gear 230 are equal, so that the rotational speed of the left half shaft 20 connected to the first planet carrier 140 and the rotational speed of the right half shaft 30 connected to the second ring gear 230 are equal , so that the rotational speed and torque of the left half shaft 20 and the right half shaft 30 are equal.

When the output speed of the left side of the vehicle is higher, the speed and torque of the left wheel are higher than the speed and torque of the right wheel. When the vehicle turns right, the rotational speed of the left wheel is higher than the rotational speed of the right wheel. Through the differential adjustment between the first planetary row 100 and the second planetary row 200, the first planetary carrier 140 rises at a speed equal to the second tooth The speed value at which the circle 230 descends. At this time, if the steering is insufficient, the vector motor 40 applies the first torque adjusted in the positive direction to the first planet carrier 140 through the first ring gear 130, and simultaneously applies the second torque adjusted in the negative direction to the second ring gear 230, and the The first torque and the second torque have the same magnitude, so that the left wheel can obtain enough torque to make the vehicle turn right smoothly and improve the turning agility of the vehicle. If the steering is over-steered, the vector motor 40 applies the second torque adjusted in the negative direction to the first planet carrier 140 through the first ring gear 130 , and simultaneously applies the first torque adjusted in the positive direction to the second ring gear 230 , and the first torque and The magnitude of the second torque is the same, so that the torque of the left wheel is reduced, so that the vehicle turns to the right smoothly, and the turning stability of the vehicle is enhanced. It is worth noting that the positive direction refers to the direction of rotation that can increase the rotational speed of the wheel, and the negative direction refers to the direction of rotation that can decrease the rotational speed of the wheel.

When the output speed on the right side of the vehicle is higher, the speed and torque of the right wheel are higher than the speed and torque of the left wheel. When the vehicle turns left, the rotation speed of the right wheel is higher than the rotation speed of the left wheel. Through the differential adjustment between the first planetary row 100 and the second planetary row 200, the speed value of the first planetary carrier 140 falling is equal to the second tooth The value of the speed at which the circle 230 rises. At this time, if the steering is insufficient, the vector motor 40 applies the second torque adjusted in the negative direction to the first planet carrier 140 through the first ring gear 130, and simultaneously applies the first torque adjusted in the positive direction to the second ring gear 230, and the The first torque and the second torque have the same magnitude, so that the right wheel can obtain enough torque to make the vehicle turn left smoothly and improve the turning agility of the vehicle. If the steering is over-steered, the vector motor 40 applies the first torque adjusted in the positive direction to the first planet carrier 140 through the first ring gear 130 , and simultaneously applies the second torque adjusted in the negative direction to the second ring gear 230 , and the first torque and The magnitude of the second torque is the same, so that the torque of the right wheel is reduced, so that the vehicle turns left smoothly, and the turning stability of the vehicle is enhanced.

In this way, the output torque of the vector motor 40 can be controlled while the vehicle is turning, and in the case of understeer, the vector motor 40 can be controlled to provide torque regulated in the positive direction to the high-speed wheels, thereby improving the turning sensitivity of the vehicle. In the case of oversteering, the vector motor 40 can be controlled to provide torque regulated in the negative direction to the wheels of high rotation speed, thereby improving the stability of the vehicle. The setting of the vector motor 40 can improve the driving performance of the vehicle according to the specific driving conditions, and realize the optimal optimization of the sensitivity and stability of the vehicle turning.

Referring to FIG. 2 , in one embodiment, the first planetary row 100 and the second planetary row 200 are arranged along the radial direction of the transmission, the first ring gear 130 and the second sun gear 210 are integrated into a single structure, and the vector motor 40 and the The second ring gear 230 is connected. At this time, the transmission path of the torque of the first motor 10 on the left half shaft 20 is: the first motor 10 - the first sun gear 110 - the first planetary gear 120 - the first planet carrier 140 - the left half shaft 20; the first motor The transmission path of the torque of 10 in the right half shaft 30 is: the first motor 10 - the first sun gear 110 - the first planetary gear 120 - the first ring gear 130 (the second sun gear 210 ) - the second planetary gear 220 - the first Two ring gears 230-right half shaft 30. The vector control of the torque by the vector motor 40 is similar to that described above, and will not be repeated here.

The present invention also provides a vehicle, the vehicle includes a transmission, and the specific structure of the transmission refers to the above-mentioned embodiments. Since this vehicle adopts all the technical solutions of all the above-mentioned embodiments, it at least has the advantages brought by the technical solutions of the above-mentioned embodiments. All the beneficial effects will not be repeated here.

The above descriptions are only optional embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, any equivalent structural transformations made by using the contents of the description and drawings of the present invention, or direct/indirect Applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A transmission is characterized by comprising a first motor, a vector motor, a first planet row, a second planet row, a left half shaft and a right half shaft;

the first planet row comprises a first sun gear, a first planet gear, a first gear ring and a first planet carrier, the first sun gear is meshed with the first planet gear, the first planet gear is meshed with the first gear ring, and the first planet gear is mounted on the first planet carrier;

the second planet row comprises a second sun gear, a second planet gear, a second ring gear and a second planet carrier, the second sun gear is meshed with the second planet gear, the second planet gear is meshed with the second ring gear, and the second planet gear is mounted on the second planet carrier;

the first motor is in transmission connection with the first sun gear through a rotor shaft;

the first gear ring is in transmission connection with the second sun gear;

the vector motor is connected with the first planet row or the second planet row;

the first planet carrier is connected with the left half shaft;

the second gear ring is connected with the right half shaft.

2. The transmission of claim 1, wherein the first planetary row and the second planetary row are arranged in a radial direction of the transmission, and the first ring gear is integrated with the second sun gear into a unitary structure.

3. The transmission of claim 2, wherein the vector machine is connected to the second ring gear.

4. The transmission of claim 1, wherein the first planetary row and the second planetary row are arranged in an axial direction of the transmission.

5. The transmission of claim 4, wherein the vector machine is connected to the first ring gear.

6. The transmission of claim 4, wherein the vector machine is connected to the second ring gear.

7. The transmission of any one of claims 3, 5 or 6, wherein the vector machine is engaged with the first ring gear or the second ring gear through a motor gear.

8. The transmission of claim 1, wherein the second carrier is fixed relative to a stationary portion of the transmission.

9. The transmission of claim 1 wherein said rotor shaft is a hollow shaft and said left axle shaft passes through said rotor shaft.

10. A vehicle characterized by comprising a transmission according to any one of claims 1 to 9.

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