Multi-speed hybrid power device and vehicle having the same

Abstract

The present invention provides a multi-speed hybrid power device and a vehicle having the same, the multi-speed hybrid power device comprising: a motor EM1; a first planetary gear, the first planetary gear is arranged adjacent to the motor EM1; a second planetary gear, the second planetary gear is arranged between the first planetary gear and the motor EM1. The present application sets the first planetary gear and the second planetary gear, the first end of the first planetary gear is connected to the first clutch and the second clutch respectively, the first end of the second planetary gear is connected to the first end of the first brake and the one-way clutch respectively, and the second end of the second planetary gear is connected to the second brake and the second end of the first planetary gear respectively, so that the vehicle has only one motor and engine drive, and can realize multiple EV working modes. At the same time, through the Simpson planetary gear layout, the output end is connected to multiple clutches, and selective output can be achieved to realize at least 4 gear drive.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a multi-speed hybrid power device and a vehicle having the same. Background Art

[0002] As people's awareness of energy conservation and emission reduction continues to increase, conventional power vehicles are difficult to meet people's needs due to structural limitations. As a new type of automotive power, hybrid vehicles are in a booming development stage in terms of technology and market, among which hybrid power vehicle drive devices occupy an extremely important position.

[0003] The current hybrid transmission is limited by the structure, the structure is single, the speed and load capacity are adjusted by the motor, the motor level is high, the cost is difficult to control; the hybrid mode is single, the gear is single, the comprehensive fuel saving rate is low, making the comprehensive cost high. The lack of energy recovery mode is not conducive to energy reuse. Summary of the invention

[0004] The main purpose of the present invention is to provide a multi-speed hybrid power device and a vehicle having the same, so as to solve the technical problems of a single hybrid mode and a single gear of the vehicle in the prior art.

[0005] To achieve the above-mentioned object, according to one aspect of the present invention, there is provided a multi-speed hybrid power device, comprising: an electric motor EM1; a first planetary gear, the first planetary gear is arranged adjacent to the electric motor EM1, and the first end of the first planetary gear is connected to the first clutch and the second clutch respectively; a second planetary gear, the second planetary gear is arranged between the first planetary gear and the electric motor EM1, the first end of the second planetary gear is connected to the first brake and the first end of the one-way clutch respectively, and the second end of the second planetary gear is connected to the second brake and the second end of the first planetary gear respectively; an engine, the engine is connected to the second end of the one-way clutch; wherein the electric motor EM1 is arranged between the first brake and the second brake, when the first clutch is connected to the first brake, the multi-speed hybrid power device is in the EV1 gear, when the first clutch is connected to the second clutch, the multi-speed hybrid power device is in the EV2 gear, when the first clutch is connected to the second brake, the multi-speed hybrid power device is in the EV3 gear, when the second clutch is connected to the second brake, the multi-speed hybrid power device is in the EV4 gear.

[0006] Furthermore, the second planetary gear includes: a second planetary carrier, a first end of the second planetary carrier is connected to the motor EM1, and a second end of the second planetary carrier is connected to the first planetary gear; a second planetary gear, and the second planetary gear is sleeved on the second planetary carrier; a second outer ring gear, a first end of the second outer ring gear is connected to the first end of the second planetary gear, and a second end of the second outer ring gear is connected to the second brake; a second sun gear, a first end of the second sun gear is connected to the second end of the second planetary gear, and the second end of the second sun gear is respectively connected to the first end of the first brake and the one-way clutch.

[0007] Furthermore, the first planetary gear includes: a first outer ring gear, a first end of the first outer ring gear is connected to the second planet carrier; a first planetary gear, the first planetary gear and the second planetary gear are arranged in parallel, and the first end of the first planetary gear is connected to the second end of the first outer ring gear; a first sun gear, a first end of the first sun gear is connected to the second end of the first planetary gear, and the second end of the first sun gear is connected to the second clutch; a first planet carrier, the first planetary gear is sleeved on the first end of the first planet carrier, and the second end of the first planet carrier is connected to the first clutch.

[0008] Furthermore, the multi-speed hybrid power device also includes: a first intermediate shaft, a first end of the first intermediate shaft is connected to the first brake, and a second end of the first intermediate shaft is connected to the second sun gear; a second intermediate shaft, a first end of the second intermediate shaft is connected to the second clutch, and a second end of the second intermediate shaft is connected to the first sun gear; a third intermediate shaft, a first end of the third intermediate shaft is connected to the second sun gear, and a second end of the third intermediate shaft is connected to the first sun gear; wherein the first intermediate shaft, the second intermediate shaft and the third intermediate shaft are coaxially arranged.

[0009] Furthermore, the first end of the output shaft is connected to the first clutch and the second clutch respectively, and the second end of the output shaft is connected to the wheel.

[0010] Furthermore, the multi-speed hybrid power device further includes: an input shaft, a first end of the input shaft is connected to the engine, and a second end of the input shaft is connected to the second end of the one-way clutch.

[0011] Furthermore, when the multi-speed hybrid power device is in the EV1 gear, the first brake is applied, driving the output shaft to rotate through the first clutch; when the multi-speed hybrid power device is in the EV2 gear, the motor EM1 drives the second intermediate shaft and the first planetary carrier to rotate, and the second intermediate shaft and the first planetary carrier drive the output shaft to rotate through the first clutch and the second clutch.

[0012] Furthermore, when the multi-speed hybrid power device is in the EV3 gear, the second brake is applied to drive the output shaft to rotate through the first clutch; when the multi-speed hybrid power device is in the EV4 gear, the second brake is applied to drive the output shaft to rotate through the second clutch.

[0013] Furthermore, the multi-speed hybrid power device also has a parallel mode and a stop-and-generate power mode. When the multi-speed hybrid power device is in the parallel mode or the stop-and-generate power mode, the engine transmits power to the output shaft via the first intermediate shaft and the second intermediate shaft.

[0014] According to another aspect of the present invention, a vehicle is provided, comprising a multi-speed hybrid power device, wherein the multi-speed hybrid power device is the multi-speed hybrid power device described above.

[0015] By applying the technical solution of the present invention, a first planetary gear train and a second planetary gear train are arranged, the first end of the first planetary gear train is respectively connected to the first clutch and the second clutch, the first end of the second planetary gear train is respectively connected to the first brake and the first end of the one-way clutch, and the second end of the second planetary gear train is respectively connected to the second brake and the second end of the first planetary gear train, so that the vehicle has only one motor and engine drive, and multiple EV working modes can be realized. At the same time, through the Simpson planetary gear train layout, the output end is connected to multiple clutches, and selective output can be achieved to achieve at least 4 drive gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a multi-speed hybrid power device according to an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a gear relationship according to an embodiment of the present invention.

[0019] The above drawings include the following reference numerals:

[0020] 10. Motor EM1;

[0021] 20. First clutch; 21. Second clutch; 22. First brake; 23. One-way clutch; 24. Second brake;

[0022] 30. Engine;

[0023] 40. Second planet carrier; 41. Second planetary gear; 42. Second outer ring gear; 43. Second sun gear;

[0024] 50. first outer ring gear; 51. first planetary gear; 52. first sun gear; 53. first planet carrier;

[0025] 60. First intermediate shaft; 61. Second intermediate shaft; 62. Third intermediate shaft; 63. Output shaft; 64. Wheel; 65. Input shaft. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] 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 application. 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 "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0030] Combination Figure 1 to Figure 2 As shown, according to a specific embodiment of the present application, a multi-speed hybrid power device is provided.

[0031] Specifically, a multi-speed hybrid device includes: an electric motor EM110; a first planetary row, the first planetary row is arranged adjacent to the electric motor EM110, and the first end of the first planetary row is connected to the first clutch 20 and the second clutch 21 respectively; a second planetary row, the second planetary row is arranged between the first planetary row and the electric motor EM110, the first end of the second planetary row is connected to the first end of the first brake 22 and the one-way clutch 23 respectively, and the second end of the second planetary row is connected to the second brake 24 and the second end of the first planetary row respectively; an engine 30, the engine 30 is connected to the one-way clutch 21, and the first end of the second planetary row is connected to the second end of the first planetary row; The multi-speed hybrid power device is connected to the second end of the clutch 23; wherein the motor EM110 is arranged between the first brake 22 and the second brake 24. When the first clutch 20 is connected to the first brake 22, the multi-speed hybrid power device is in the EV1 gear. When the first clutch 20 is connected to the second clutch 21, the multi-speed hybrid power device is in the EV2 gear. When the first clutch 20 is connected to the second brake 24, the multi-speed hybrid power device is in the EV3 gear. When the second clutch 21 is connected to the second brake 24, the multi-speed hybrid power device is in the EV4 gear.

[0032] In this embodiment, by setting the first planetary gear and the second planetary gear, the first end of the first planetary gear is connected to the first clutch and the second clutch respectively, the first end of the second planetary gear is connected to the first brake and the first end of the one-way clutch respectively, and the second end of the second planetary gear is connected to the second brake and the second end of the first planetary gear respectively, so that the vehicle only has one motor and engine drive, and can realize multiple EV working modes. At the same time, through the Simpson planetary gear layout, the output end is connected to multiple clutches, and selective output can achieve at least 4 drive gears.

[0033] Further, the second planetary gear set includes: a second planetary carrier 40, a first end of the second planetary carrier 40 is connected to the motor EM110, and a second end of the second planetary carrier 40 is connected to the first planetary gear set; a second planetary gear 41, and the second planetary gear 41 is sleeved on the second planetary carrier 40; a second outer gear ring 42, a first end of the second outer gear ring 42 is connected to the first end of the second planetary gear 41, and a second end of the second outer gear ring 42 is connected to the second brake 24; a second sun gear 43, a first end of the second sun gear 43 is connected to the second end of the second planetary gear 41, and a second end of the second sun gear 43 is respectively connected to the first end of the first brake 22 and the first end of the one-way clutch 23. Such an arrangement ensures the stable connection of the second planetary gear set.

[0034] like Figure 1As shown, the first planetary gear set includes: a first outer gear ring 50, the first end of which is connected to the second planetary carrier 40; a first planetary gear 51, the first planetary gear 51 is arranged in parallel with the second planetary gear 41, and the first end of the first planetary gear 51 is connected to the second end of the first outer gear ring 50; a first sun gear 52, the first end of the first sun gear 52 is connected to the second end of the first planetary gear 51, and the second end of the first sun gear 52 is connected to the second clutch 21; a first planetary carrier 53, the first planetary gear 51 is sleeved on the first end of the first planetary carrier 53, and the second end of the first planetary carrier 53 is connected to the first clutch 20. This arrangement ensures the stable connection of the first planetary gear set.

[0035] Furthermore, the multi-speed hybrid device further includes: a first intermediate shaft 60, a first end of the first intermediate shaft 60 is connected to the first brake 22, and a second end of the first intermediate shaft 60 is connected to the second sun gear 43; a second intermediate shaft 61, a first end of the second intermediate shaft 61 is connected to the second clutch 21, and a second end of the second intermediate shaft 61 is connected to the first sun gear 52; a third intermediate shaft 62, a first end of the third intermediate shaft 62 is connected to the second sun gear 43, and a second end of the third intermediate shaft 62 is connected to the first sun gear 52; wherein the first intermediate shaft 60, the second intermediate shaft 61 and the third intermediate shaft 62 are coaxially arranged. Such an arrangement ensures that the first planetary gear and the second planetary gear can be stably connected to the first clutch 20, the second clutch 21, the first brake 22 and the second brake 24 through the first intermediate shaft 60 and the second intermediate shaft 61.

[0036] Specifically, the first end of the output shaft 63 is connected to the first clutch 20 and the second clutch 21 respectively, and the second end of the output shaft 63 is connected to the wheel 64. This arrangement can stably transmit power to the wheel 64 through the output shaft 63 according to different gears.

[0037] Furthermore, the multi-speed hybrid power device further includes an input shaft 65, a first end of the input shaft 65 is connected to the engine 30, and a second end of the input shaft 65 is connected to the second end of the one-way clutch 23. This arrangement ensures that the braking of the engine 30 can be transmitted through the input shaft 65, thereby ensuring the power stability of the multi-speed hybrid power device.

[0038] Furthermore, when the multi-speed hybrid power device is in the EV1 gear, the first brake 22 is applied, driving the output shaft 63 to rotate through the first clutch 20; when the multi-speed hybrid power device is in the EV2 gear, the motor EM110 drives the second intermediate shaft 61 and the first planetary carrier 53 to rotate, and the second intermediate shaft 61 and the first planetary carrier 53 drive the output shaft 63 to rotate through the first clutch 20 and the second clutch 21.

[0039] In this embodiment, Figure 2As shown, EV1 gear: the first clutch and the first brake are engaged. As the first brake is engaged, the first intermediate shaft and the first sun gear connected thereto are constrained and cannot rotate; the motor rotor power is transmitted to the first outer gear ring through the second planetary carrier, driving it to rotate, driving the first planetary gear to rotate, and as the first sun gear is braked, the first planetary carrier is driven to revolve. The first clutch is engaged, and the power of the first planetary carrier is transmitted to the output shaft through the first clutch, thereby driving the wheels forward or backward.

[0040] EV2 gear: Since the first clutch and the second clutch are combined, and both are connected to the output shaft, the second intermediate shaft and the first planet carrier connected to the two respectively rotate at the same speed, that is, the first sun gear and the first planet carrier rotate at the same speed, and all the components of the first planetary gear, including the first sun gear, the first planet carrier, the first planetary gear and the first outer gear ring, rotate as a whole. The power of the motor rotor is transmitted to the first outer gear ring through the second planet carrier, driving it to rotate, thereby driving the first planetary gear to operate as a whole. The power is transmitted to the output shaft through the combined first clutch and the second clutch, thereby driving the wheels forward or backward.

[0041] In another embodiment of the present application, when the multi-speed hybrid power device is in the EV3 gear, the second brake 24 brakes and drives the output shaft 63 to rotate through the first clutch 20; when the multi-speed hybrid power device is in the EV4 gear, the second brake 24 brakes and drives the output shaft 63 to rotate through the second clutch 21.

[0042] In this embodiment, the EV3 gear position: the first clutch is engaged, and the second brake is engaged. As the second brake is engaged, the second outer gear ring connected thereto is braked, and the motor rotor power is transmitted to the second planetary carrier to drive it to rotate, thereby driving the second planetary gear to rotate, thereby driving the second sun gear meshed therewith to rotate; further, the motor power is transmitted to the first outer gear ring through the second planetary carrier, and the first sun gear and the second sun gear are an integrated structure, and the first sun gear inherits the rotation state of the second sun gear, that is, the rotation state of the planetary carrier in the first planetary row is unique, and the power is output to the output shaft through the first clutch, thereby driving the wheels forward or backward.

[0043] EV4 gear: The second clutch is engaged, and the second brake is engaged. The second outer gear ring connected to it is braked, and the motor rotor power is transmitted to the second planetary carrier to drive it to rotate, thereby driving the second planetary gear to rotate, and driving the second sun gear meshed with it to rotate; the power passes through the second intermediate shaft and the second clutch in turn, and is transmitted to the output shaft, thereby driving the wheels forward or backward.

[0044] Furthermore, the multi-speed hybrid power device also has a parallel mode and a parking power generation mode. When the multi-speed hybrid power device is in the parallel mode or the parking power generation mode, the engine 30 transmits power to the output shaft 63 through the first intermediate shaft 60 and the second intermediate shaft 61.

[0045] In this embodiment, parallel mode 1: when the multi-speed hybrid power device is in the EV2 gear, if the device power is insufficient and the power input needs to be increased, the engine is started and used as auxiliary power. It is transmitted to the input shaft through the coupler, and then drives the first intermediate shaft L through the one-way clutch, thereby driving the second intermediate shaft, and the auxiliary power is transmitted to the output shaft to participate in driving the wheels.

[0046] Parallel 2 mode: When the multi-speed hybrid device is in the EV3 gear, if the device power is insufficient, the power input needs to be increased. At this time, the engine is started and used as auxiliary power. It is transmitted to the input shaft through the coupler and then through the one-way clutch to drive the first intermediate shaft L, thereby driving the first sun gear and the second sun gear combination as auxiliary power input to the transmission element to participate in the drive.

[0047] Parallel 3 mode: When the multi-speed hybrid device is in EV4 gear, if the device power is insufficient, the power input needs to be increased. At this time, the engine is started and used as auxiliary power. It is transmitted to the input shaft through the coupler, and then drives the first intermediate shaft through the one-way clutch, thereby driving the second intermediate shaft, and the auxiliary power is transmitted to the output shaft to participate in driving the wheels.

[0048] Parking power generation mode: the second brake is engaged, the engine power is transmitted to the input shaft through the coupler, driving the one-way clutch, and output to the first intermediate shaft, thereby driving the second sun gear to rotate. Since the second brake is engaged, the second outer ring gear connected to it is braked, and the second sun gear drives the second planetary gear to rotate, further driving the second planetary carrier to rotate, thereby driving the motor rotor to form a power generation mode.

[0049] In another embodiment of the present application, a vehicle is provided, comprising a multi-speed hybrid power device, wherein the multi-speed hybrid power device is the multi-speed hybrid power device of the above embodiment.

[0050] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0051] 1. With only one motor and engine drive, multi-mode operating conditions such as EV mode, parallel mode, energy recovery and parking power generation mode can be realized. At the same time, through the Simpson planetary gear layout, the output end is connected with multiple clutches, and selective output can achieve 4 drive gears. During sudden acceleration, the engine intervenes in time and can also provide quite effective assistance to prevent the drive motor from working away from the high-efficiency range.

[0052] 2. The planetary gear structure is coaxially arranged to optimize the space and configuration utilization.

[0053] 3. A one-way clutch is arranged between the engine and the transmission body. The existence of the one-way clutch can effectively prevent the power rotation device driven by the motor from dragging the engine crankshaft in reverse when the engine speed is insufficient or the engine is not started, causing energy loss.

[0054] 4. The configuration scheme involved in the present invention, that is, the combination of the double planetary gearbox and the actuator, the clutch and the brake, gives the present invention certain advantages in terms of control logic, and makes the gear shifting of the components smooth and the speed difference relatively small.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0057] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-speed hybrid power device, characterized in that: include: Motor EM1 (10); A first planetary gear, the first planetary gear is arranged adjacent to the motor EM1 (10), and a first end of the first planetary gear is connected to a first clutch (20) and a second clutch (21) respectively; a second planetary row, the second planetary row being arranged between the first planetary row and the motor EM1 (10), the first end of the second planetary row being respectively connected to the first brake (22) and the first end of the one-way clutch (23), and the second end of the second planetary row being respectively connected to the second brake (24) and the second end of the first planetary row; an engine (30), the engine (30) being connected to the second end of the one-way clutch (23); The electric motor EM1 (10) is arranged between the first brake (22) and the second brake (24); when the first clutch (20) is connected to the first brake (22), the multi-gear hybrid power device is in the EV1 gear; when the first clutch (20) is connected to the second clutch (21), the multi-gear hybrid power device is in the EV2 gear; when the first clutch (20) is connected to the second brake (24), the multi-gear hybrid power device is in the EV3 gear; when the second clutch (21) is connected to the second brake (24), the multi-gear hybrid power device is in the EV4 gear; The second planetary gear set comprises: a second planetary carrier (40), wherein the first end of the second planetary carrier (40) is connected to the motor EM1 (10), and the second end of the second planetary carrier (40) is connected to the first planetary gear set; a second planetary gear (41), wherein the second planetary gear (41) is sleeved on the second planetary carrier (40); a second outer gear ring (42), wherein the first end of the second outer gear ring (42) is connected to the first end of the second planetary gear (41), and the second end of the second outer gear ring (42) is connected to the second brake (24); and a second sun gear (43), wherein the first end of the second sun gear (43) is connected to the second end of the second planetary gear (41), and the second end of the second sun gear (43) is respectively connected to the first end of the first brake (22) and the first end of the one-way clutch (23).

2. The multi-speed hybrid power device according to claim 1, characterized in that: The first planetary gear comprises: A first outer gear ring (50), wherein a first end of the first outer gear ring (50) is connected to the second planet carrier (40); a first planetary gear (51), the first planetary gear (51) being arranged in parallel with the second planetary gear (41), and a first end of the first planetary gear (51) being connected to a second end of the first outer gear ring (50); a first sun gear (52), wherein a first end of the first sun gear (52) is connected to a second end of the first planetary gear (51), and a second end of the first sun gear (52) is connected to the second clutch (21); A first planetary carrier (53), wherein the first planetary gear (51) is sleeved on a first end of the first planetary carrier (53), and a second end of the first planetary carrier (53) is connected to the first clutch (20).

3. The multi-speed hybrid power device according to claim 2, characterized in that: The multi-speed hybrid power device further comprises: a first intermediate shaft (60), wherein a first end of the first intermediate shaft (60) is connected to the first brake (22), and a second end of the first intermediate shaft (60) is connected to the second sun gear (43); a second intermediate shaft (61), wherein a first end of the second intermediate shaft (61) is connected to the second clutch (21), and a second end of the second intermediate shaft (61) is connected to the first sun gear (52); a third intermediate shaft (62), wherein a first end of the third intermediate shaft (62) is connected to the second sun gear (43), and a second end of the third intermediate shaft (62) is connected to the first sun gear (52); The first intermediate shaft (60), the second intermediate shaft (61) and the third intermediate shaft (62) are coaxially arranged.

4. The multi-speed hybrid power device according to claim 3, characterized in that: The first end of the output shaft (63) is connected to the first clutch (20) and the second clutch (21) respectively, and the second end of the output shaft (63) is connected to the wheel (64).

5. The multi-speed hybrid power device according to claim 1, characterized in that: The multi-speed hybrid power device further comprises: An input shaft (65), wherein a first end of the input shaft (65) is connected to the engine (30), and a second end of the input shaft (65) is connected to a second end of the one-way clutch (23).

6. The multi-speed hybrid power device according to claim 4, characterized in that: When the multi-gear hybrid power device is in the EV1 gear, the first brake (22) brakes and drives the output shaft (63) to rotate through the first clutch (20); When the multi-gear hybrid power device is in the EV2 gear, the motor EM1 (10) drives the second intermediate shaft (61) and the first planetary carrier (53) to rotate, and the second intermediate shaft (61) and the first planetary carrier (53) drive the output shaft (63) to rotate through the first clutch (20) and the second clutch (21).

7. The multi-speed hybrid power device according to claim 6, characterized in that: When the multi-gear hybrid power device is in the EV3 gear, the second brake (24) brakes and drives the output shaft (63) to rotate through the first clutch (20); When the multi-gear hybrid power device is in the EV4 gear, the second brake (24) brakes and drives the output shaft (63) to rotate through the second clutch (21).

8. The multi-speed hybrid power device according to claim 7, characterized in that: The multi-speed hybrid power device also has a parallel mode and a parking power generation mode. When the multi-speed hybrid power device is in the parallel mode or the parking power generation mode, the engine (30) transmits power to the output shaft (63) through the first intermediate shaft (60) and the second intermediate shaft (61).

9. A vehicle comprising a multi-speed hybrid power device, characterized in that: The multi-speed hybrid power device is the multi-speed hybrid power device according to any one of claims 1 to 8.

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