Distributed driving system and vehicle applying same

Abstract

The utility model discloses a distributed driving system and a vehicle applying the same, the distributed driving system comprises a first transmission structure, a first driving motor, a first output shaft, a clutch, a second transmission structure, a second driving motor and a second output shaft, the first transmission structure is arranged between the first driving motor and the first output shaft, and the second transmission structure is arranged between the second driving motor and the second output shaft. A second transmission structure is arranged between the second driving motor and the second output shaft, the first transmission structure and the second transmission structure are symmetrically arranged on the two sides of the clutch, the clutch is connected with the first transmission structure and the second transmission structure, and the first transmission structure comprises a first planet row and a second planet row. The second transmission structure comprises a third planet row and a fourth planet row. According to the distributed driving system and the vehicle with the distributed driving system, the size of the driving system is reduced; the large reduction ratio output of the driving motor is realized; a coaxial independent driving function from the motor to the wheel is realized; and the overall performance of the driving system and the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle drive, in particular to a distributed drive system and a vehicle applying the same. Background Art

[0002] The country strongly advocates energy conservation and emission reduction, and the development of the electric drive system of new energy vehicles is rapid. At present, a single pure electric three-in-one drive unit can no longer meet the needs of independent wheel-end drive of pure electric vehicles. Traditional pure electric three-in-one drive assemblies often adopt a parallel-axis reduction gear design, with relatively large axial and radial dimensions, large overall volume and weight of the whole box, and cannot adapt to complex driving conditions. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a distributed drive system and a vehicle applying the same, which can solve one or more of the above-mentioned existing technical problems.

[0004] According to the first aspect of the utility model, a distributed drive system is provided, including:

[0005] A first transmission structure, a first drive motor, a first output shaft, a clutch, a second transmission structure, a second drive motor and a second output shaft,

[0006] A first transmission structure is arranged between the first drive motor and the first output shaft,

[0007] A second transmission structure is arranged between the second drive motor and the second output shaft,

[0008] The first transmission structure and the second transmission structure are symmetrically arranged on both sides of the clutch, and the clutch is respectively connected to the first transmission structure and the second transmission structure,

[0009] The first transmission structure includes a first planetary gear set and a second planetary gear set, and the second transmission structure includes a third planetary gear set and a fourth planetary gear set.

[0010] In some embodiments, the ring gear R1 of the first planetary gear set is connected to the planet carrier P2 of the second planetary gear set, the planet carrier P1 of the first planetary gear set and the sun gear S2 of the second planetary gear set are connected, the ring gear R1 of the first planetary gear set is fixed on the housing of the distributed drive system, the ring gear R2 of the second planetary gear set is connected to the first output shaft, and the sun gear S1 of the first planetary gear set is connected to the first drive motor.

[0011] In some embodiments, the ring gear R4 of the fourth planetary gear set is connected to the planet carrier P3 of the third planetary gear set, the planet carrier P4 of the fourth planetary gear set and the sun gear S3 of the third planetary gear set are connected, the ring gear R4 of the fourth planetary gear set is fixed on the housing of the distributed drive system, the ring gear R3 of the third planetary gear set is connected to the second output shaft, and the sun gear S4 of the fourth planetary gear set is connected to the second drive motor.

[0012] In some embodiments, the first output shaft passes through the first transmission structure and the first drive motor, and the first transmission structure and the first drive motor are coaxially arranged.

[0013] In some embodiments, the second output shaft passes through the second transmission structure and the second drive motor, and the second transmission structure and the second drive motor are coaxially arranged.

[0014] In some embodiments, the output shaft of the first drive motor passes through the sun gear S1 of the first planetary gear, the sun gear S2 of the second planetary gear and the first drive motor, and the first drive motor and the output shaft of the first drive motor are coaxially arranged.

[0015] In some embodiments, the output shaft of the second drive motor passes through the sun gear S3 of the third planetary row, the sun gear S4 of the fourth planetary row and the interior of the second drive motor, and the output shafts of the second drive motor and the second drive motor are coaxially arranged.

[0016] In some embodiments, the first drive motor is disposed on a side of the first transmission structure away from the clutch, and the second drive motor is disposed on a side of the second transmission structure away from the clutch.

[0017] In some embodiments, the first drive motor is disposed on a side of the first transmission structure close to the clutch, and the second drive motor is disposed on a side of the second transmission structure close to the clutch.

[0018] According to a second aspect of the present invention, a vehicle is provided, applying any one of the above-mentioned distributed drive systems.

[0019] The distributed drive system and the vehicle using the same provided by the utility model shorten the volume of the drive system by arranging the first transmission structure and the second transmission structure; the first transmission structure and the second transmission structure respectively include two planetary gears, which can effectively realize the large reduction ratio output of the drive motor; the coaxial independent drive function from the motor to the wheel is realized by the back-to-back arrangement of the first transmission structure, the first drive motor, the second transmission structure and the second drive motor; the function of outputting power through the other wheel when the wheel on one side slips is realized, thereby improving the escape ability, the drive system performance and the overall performance of the vehicle.

[0020] In addition, in the technical solution of the present utility model, unless otherwise specified, the technical solution can be implemented by adopting conventional means in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of a distributed drive system provided by an embodiment of the present utility model.

[0023] Figure 2 It is a schematic structural diagram of another distributed drive system provided by an embodiment of the present utility model.

[0024] Figure 3 It is a schematic structural diagram of a vehicle provided by an embodiment of the present utility model. Detailed implementation manners

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, system, product or device.

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] Refer to the attached drawings of the specification Figure 1 , an embodiment of the present utility model provides a distributed drive system, including:

[0028] A first transmission structure 1, a first drive motor 2, a first output shaft 3, a clutch 4, a second transmission structure 5, a second drive motor 6 and a second output shaft 7.

[0029] Among them, a first transmission structure 1 is provided between the first drive motor 2 and the first output shaft 3, and a second transmission structure 5 is provided between the second drive motor 6 and the second output shaft 7. The first transmission structure 1 and the second transmission structure 5 are symmetrically arranged on both sides of the clutch 4, and the clutch 4 is respectively connected to the first transmission structure 1 and the second transmission structure 5. The first transmission structure 1 includes a first planetary gear set and a second planetary gear set, and the second transmission structure 5 includes a third planetary gear set and a fourth planetary gear set.

[0030] The ring gear R1 of the first planetary gear set is connected to the planet carrier P2 of the second planetary gear set. The planet carrier P1 of the first planetary gear set and the sun gear S2 of the second planetary gear set are connected. The ring gear R1 of the first planetary gear set is fixed to the housing of the distributed drive system. The ring gear R2 of the second planetary gear set is connected to the first output shaft 3, and the sun gear S1 of the first planetary gear set is connected to the first drive motor 2. Thus, a large reduction ratio output of the first drive motor 2 can be achieved.

[0031] The ring gear R4 of the fourth planetary gear set is connected to the planet carrier P3 of the third planetary gear set. The planet carrier P4 of the fourth planetary gear set and the sun gear S3 of the third planetary gear set are connected. The ring gear R4 of the fourth planetary gear set is fixed to the housing of the distributed drive system. The ring gear R3 of the third planetary gear set is connected to the second output shaft 7, and the sun gear S4 of the fourth planetary gear set is connected to the second drive motor 6. Thus, a large reduction ratio output of the second drive motor 6 can be achieved.

[0032] The first output shaft 3 passes through the first transmission structure 1 and the first drive motor 2, and the first transmission structure 1 and the first drive motor 2 are coaxially arranged.

[0033] The second output shaft 7 passes through the second transmission structure 5 and the second drive motor 6, and the second transmission structure 5 and the second drive motor 6 are coaxially arranged.

[0034] The output shaft of the first drive motor 2 passes through the sun gear S1 of the first planetary gear set, the sun gear S2 of the second planetary gear set and the inside of the first drive motor 2, and the first drive motor 2 and the output shaft of the first drive motor 2 are coaxially arranged.

[0035] The output shaft of the second drive motor 6 passes through the sun gear S3 of the third planetary gear set, the sun gear S4 of the fourth planetary gear set and the inside of the second drive motor 6, and the second drive motor 6 and the output shaft of the second drive motor 6 are coaxially arranged.

[0036] The first transmission structure 1 and the second transmission structure 5 are symmetrically arranged on both sides of the clutch 4. The clutch 4 can be arranged between the first transmission structure 1 and the second transmission structure 5. At this time, the first drive motor 2 is arranged on the side of the first transmission structure 1 away from the clutch 4, and the second drive motor 6 is arranged on the side of the second transmission structure 5 away from the clutch 4.

[0037] The clutch 4 is connected to the first transmission structure 1 and the second transmission structure 5 respectively. Specifically, the input end of the clutch 4 can be connected to the ring gear R2 of the second planetary gear set, and the output end of the clutch 4 can be connected to the ring gear R3 of the third planetary gear set.

[0038] Reference Manual Attached Figure 2 , shows a structural schematic diagram of another distributed drive system provided by an embodiment of the utility model, wherein the first drive motor 2 is arranged on the side of the first transmission structure 1 close to the clutch 4, and the second drive motor 6 is arranged on the side of the second transmission structure 5 close to the clutch 4.

[0039] When the vehicle is driving normally, the clutch 4 is opened, the first drive motor 2 outputs power through the first transmission structure 1, and the second drive motor 6 outputs power through the second transmission structure 5, thereby realizing independent power output of the wheels on both sides; when the wheels on one side of the vehicle slip, the clutch 4 is closed, and the torque of the first drive motor 2 and the second drive motor 6 are jointly output from the other wheel, thereby realizing the vehicle's high-torque escape function.

[0040] Reference Manual Attached Figure 3 This embodiment also shows a vehicle, which uses any one of the above-mentioned distributed drive systems 100, and the distributed drive system 100 is respectively arranged on the front axle and the rear axle of the vehicle, thereby realizing independent driving of the four wheels of the whole vehicle.

[0041] The distributed drive system and the vehicle using the same provided by the utility model can realize independent driving of the four wheels of the whole vehicle. The distributed drive system is installed on the front axle or the rear axle, and the first output shaft 3 and the second output shaft 7 are respectively connected to one wheel.

[0042] When the vehicle is traveling, the clutch 4 is opened, and the two wheels of the front axle or the rear axle realize independent driving function. When the wheel on one side of the front axle or the rear axle slips, the clutch 4 is closed, and the torque of the first drive motor 2 and the second drive motor 6 are jointly output from the other wheel, realizing the vehicle's high-torque escape function; when the wheels turn, the outer wheels are allowed to output greater torque and speed, thereby improving the vehicle's handling; when the wheels on one side of the front and rear axles rotate forward and the wheels on the other side rotate reversely, the vehicle can realize the function of turning around on the spot.

[0043] The distributed drive system and the vehicle using the same provided by the utility model shorten the volume of the drive system by arranging the first transmission structure and the second transmission structure; the first transmission structure and the second transmission structure respectively include two planetary gears, and the double planetary gear two-stage reduction arrangement can effectively realize the large reduction ratio output of the drive motor, and significantly reduce the economic costs such as the design torque, cost, weight, and volume of the drive motor; the coaxial independent drive function from the motor to the wheel is realized by the back-to-back arrangement of the first transmission structure, the first drive motor, the second transmission structure, and the second drive motor; the clutch acts as a locking mechanism, and can realize the function of outputting power through the other wheel when the wheel on one side slips, thereby improving the escape ability, the drive system performance, and the overall vehicle performance.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0046] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A distributed drive system, characterized in that, Including: A first transmission structure (1), a first driving motor (2), a first output shaft (3), a clutch (4), a second transmission structure (5), a second driving motor (6) and a second output shaft (7). A first transmission structure (1) is provided between the first driving motor (2) and the first output shaft (3). A second transmission structure (5) is provided between the second driving motor (6) and the second output shaft (7). The first transmission structure (1) and the second transmission structure (5) are symmetrically arranged on both sides of the clutch (4), and the clutch (4) is respectively connected to the first transmission structure (1) and the second transmission structure (5). The first transmission structure (1) includes a first planetary gear set and a second planetary gear set, and the second transmission structure (5) includes a third planetary gear set and a fourth planetary gear set.

2. The distributed drive system according to claim 1, wherein The ring gear R1 of the first planetary gear set is connected to the planet carrier P2 of the second planetary gear set, the planet carrier P1 of the first planetary gear set and the sun gear S2 of the second planetary gear set are connected, the ring gear R1 of the first planetary gear set is fixed on the housing of the distributed drive system, the ring gear R2 of the second planetary gear set is connected to the first output shaft (3), and the sun gear S1 of the first planetary gear set is connected to the first driving motor (2).

3. The distributed drive system according to claim 1, wherein The ring gear R4 of the fourth planetary gear set is connected to the planet carrier P3 of the third planetary gear set, the planet carrier P4 of the fourth planetary gear set and the sun gear S3 of the third planetary gear set are connected, the ring gear R4 of the fourth planetary gear set is fixed on the housing of the distributed drive system, the ring gear R3 of the third planetary gear set is connected to the second output shaft (7), and the sun gear S4 of the fourth planetary gear set is connected to the second driving motor (6).

4. The distributed drive system according to claim 1, characterized in that The first output shaft (3) passes through the first transmission structure (1) and the first driving motor (2), and the first transmission structure (1) and the first driving motor (2) are coaxially arranged.

5. The distributed drive system according to claim 1, wherein The second output shaft (7) passes through the second transmission structure (5) and the second driving motor (6), and the second transmission structure (5) and the second driving motor (6) are coaxially arranged.

6. The distributed drive system according to claim 1, wherein The output shaft of the first driving motor (2) passes through the sun gear S1 of the first planetary gear set, the sun gear S2 of the second planetary gear set and the inside of the first driving motor (2), and the first driving motor (2) and the output shaft of the first driving motor (2) are coaxially arranged.

7. The distributed drive system according to claim 1, wherein The output shaft of the second driving motor (6) passes through the sun gear S3 of the third planetary gear set, the sun gear S4 of the fourth planetary gear set and the inside of the second driving motor (6), and the second driving motor (6) and the output shaft of the second driving motor (6) are coaxially arranged.

8. The distributed drive system according to claim 1, wherein The first driving motor (2) is arranged on the side of the first transmission structure (1) away from the clutch (4), and the second driving motor (6) is arranged on the side of the second transmission structure (5) away from the clutch (4).

9. The distributed drive system according to claim 1, wherein The first driving motor (2) is arranged on one side of the first transmission structure (1) close to the clutch (4), and the second driving motor (6) is arranged on one side of the second transmission structure (5) close to the clutch (4).

10. A vehicle, characterized in that, Apply the distributed drive system according to any one of claims 1-9.

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