Hybrid power speed change system, power assembly and vehicle

Abstract

The utility model relates to the field of vehicles, aims to solve the problem that a known hybrid transmission is complex in structure or large in size, and provides a hybrid transmission system, a power assembly and a vehicle. The hybrid power speed control system comprises a motor integration part and a transmission part. The motor integration part comprises an integrated motor, an engine clutch, a first clutch and a second clutch. The transmission part comprises a first input shaft and a second input shaft; the first clutch is arranged between the first input shaft and a rotor of the motor in a clutch mode, and the second clutch is arranged between the second input shaft and the rotor of the motor in a clutch mode. The transmission part is a five-gear transmission, and switching from a first gear to a fifth gear and a reverse gear can be achieved. The power output device has the beneficial effects that the structure is compact and reasonable, multiple power output modes can be achieved, the power output characteristic is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular, to a hybrid transmission system, a powertrain and a vehicle. Background Art

[0002] As one of the core components of the power output of hybrid vehicles, the hybrid-specific transmission is the key to the power output of the powertrain.

[0003] The known hybrid transmission has the problem of being complex in structure or large in size. Utility Model Content

[0004] The present application provides a hybrid transmission system and a vehicle to solve the problem that the known hybrid transmission has a complex structure or a large size.

[0005] In a first aspect, the present application provides a hybrid transmission system for a vehicle. The hybrid transmission system includes: a motor integrated part and a transmission part. The motor integrated part includes a motor, an engine clutch, a first clutch and a second clutch, the engine clutch, the first clutch and the second clutch are respectively arranged in the motor; the engine clutch is connected between the engine of the vehicle and the rotor of the motor. The transmission part includes a first input shaft and a second input shaft, the second input shaft is coaxially sleeved outside the first input shaft; and the first clutch can be clutched between the first input shaft and the rotor of the motor, and the second clutch can be clutched between the second input shaft and the rotor of the motor. The transmission part also includes a third gear driving gear, a first gear driving gear and a fifth gear driving gear connected to the first input shaft in an axially spaced manner; the transmission part also includes a second gear driving gear and a fourth gear driving gear connected to the second input shaft in an axially spaced manner. The transmission part also includes a first output shaft and a reverse gear driven gear, a fourth gear driven gear and a first gear driven gear connected to the first output shaft in an axially spaced manner. The transmission part also includes a second output shaft and a second gear driven gear, a third gear driven gear and a fifth gear driven gear connected to the second output shaft at intervals in the axial direction. Among them, the first gear driven gear meshes with the first gear driving gear, the second gear driven gear meshes with the second gear driving gear, the third gear driven gear meshes with the third gear driving gear, the fourth gear driven gear meshes with the fourth gear driving gear, and the fifth gear driven gear meshes with the fifth gear driving gear. The transmission part also includes a first / fourth gear double-sided synchronizer, a third / fifth gear double-sided synchronizer and a second gear unilateral synchronizer; the first / fourth gear double-sided synchronizer is connected to the first output shaft and is located between the first gear driven gear and the fourth gear driven gear; the third / fifth gear double-sided synchronizer is connected to the second output shaft and is located between the third gear driven gear and the fifth gear driven gear; the second gear unilateral synchronizer is connected to the second output shaft and is located on one side of the second gear driven gear.

[0006] In a possible implementation, the second gear driving gear, the fourth gear driving gear, the third gear driving gear, the first gear driving gear and the fifth gear driving gear are sequentially arranged along the axis of the first input shaft and the second input shaft, and the second gear driving gear is located near one end of the motor. The third / fifth gear double-sided synchronizer corresponds to the first gear driving gear in the radial direction, the first / fourth gear double-sided synchronizer corresponds to the third gear driving gear in the radial direction, the second gear single-sided synchronizer corresponds to the fourth gear driving gear in the radial direction, and the reverse gear driven gear corresponds to the second gear driving gear in the radial direction.

[0007] In a possible implementation, the hybrid transmission system further includes a first output shaft output gear, a second output shaft output gear, an output transmission gear, a differential, and a connecting shaft. The first output shaft output gear is fixedly connected to the first output shaft, the second output shaft output gear is fixedly connected to the second output shaft, the first output shaft output gear and the second output shaft output gear are respectively meshed with the output transmission gear; the output transmission gear and the differential are respectively arranged on the connecting shaft, and the connecting shaft is used to be connected to the wheels of the vehicle.

[0008] In a possible implementation manner, the first output shaft and the second output shaft are respectively located on both sides of the first input shaft, and the first output shaft and the second output shaft are respectively parallel to the first input shaft.

[0009] In a possible implementation, the motor includes a housing, a stator and a rotor; the stator is fixed in the housing, and the rotor is rotatably disposed in the housing and can rotate relative to the stator. The first clutch and the second clutch are coaxially disposed, and the radius of the first clutch is greater than the radius of the second clutch; the engine clutch is located on the side of the rotor away from the transmission part.

[0010] In a possible implementation, the motor integrated part further includes an input hub, which is used for transmission connection to the engine. The outer hub of the engine clutch and the outer hub of the first clutch are an integrated structure; the outer hub of the second clutch is fixedly connected to the outer hub of the first clutch. The inner hub of the engine clutch is connected to the input hub; the inner hub of the first clutch is connected to the first input shaft, and the inner hub of the second clutch is connected to the second input shaft.

[0011] In a possible implementation, the motor integrated part further includes a rotor cover. The rotor cover is fixedly connected to the outer hub of the engine clutch, so that the rotor cover, the outer hub of the engine clutch and the outer hub of the first clutch form a mounting groove. The rotor is disposed in the mounting groove.

[0012] In a possible implementation manner, the engine clutch, the first clutch, and the second clutch are all friction clutches.

[0013] In a second aspect, the present application provides a powertrain, which includes an engine and the aforementioned hybrid power transmission system. The engine is transmission-connected to the hybrid power transmission system.

[0014] In a third aspect, the present application provides a vehicle comprising the aforementioned powertrain.

[0015] To sum up the above, the hybrid transmission system in the present application has three clutches, namely, the motor and the engine clutch, the first clutch and the second clutch, integrated together. The space inside the motor is fully utilized and the structure is compact. At the same time, by reasonably arranging the driving gear and the driven gear of the transmission and the reverse gear driven gear, the axial dimension of the transmission part can be made smaller, which is conducive to reducing the size of the entire hybrid transmission system and powertrain.

[0016] In addition, the drive assembly can achieve output characteristics such as pure electric output and hybrid power output, which is beneficial for the motor and engine to better maintain a high-efficiency speed range, reduce power consumption / fuel consumption, and improve the economy of electricity and fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A side view of a vehicle according to an embodiment of the present application;

[0019] Figure 2 A top view of a vehicle according to an embodiment of the present application;

[0020] Figure 3 A cross-sectional view of a hybrid transmission system according to an embodiment of the present application;

[0021] Figure 4 for Figure 3 A simplified diagram of a hybrid transmission system;

[0022] Figure 5 for Figure 3 A partial enlarged view of .

[0023] Description of main component symbols:

[0024] Vehicle 1000

[0025] Chassis 100

[0026] Powertrain 110

[0027] Engine 111

[0028] Hybrid transmission system 112

[0029] Rear axle differential 120

[0030] Transmission shaft 130

[0031] Front wheel 140

[0032] Rear wheel 150

[0033] Front wheel axle 160

[0034] Rear wheel axle 170

[0035] Body 200

[0036] Transmission part 10

[0037] First input shaft 1a

[0038] Second input shaft 2a

[0039] First output shaft 1b

[0040] Second output shaft 2b

[0041] First gear driving gear 11a

[0042] Second gear driving gear 12a

[0043] Third gear driving gear 13a

[0044] Fourth gear driving gear 14a

[0045] Fifth gear driving gear 15a

[0046] First gear driven gear 11b

[0047] Second gear driven gear 12b

[0048] Third gear driven gear 13b

[0049] Fourth gear driven gear 14b

[0050] Fifth gear driven gear 15b

[0051] Reverse driven gear 16b

[0052] 1st / 4th gear double side synchronizer 17a

[0053] Second gear single side synchronizer 17b

[0054] Third / fifth gear double synchro 17c

[0055] First output shaft output gear 18a

[0056] Second output shaft output gear 18b

[0057] Output transmission gear 18c

[0058] Differential 20

[0059] Connecting shaft 21

[0060] Motor integrated part 30

[0061] Motor 30a

[0062] Stator 31

[0063] Rotor 32

[0064] Case 33

[0065] Rotor cover 34

[0066] Rivet 35

[0067] Mounting groove 36

[0068] Engine Clutch C0

[0069] First clutch C1

[0070] Second clutch C2

[0071] Outer hub C0a, C1a, C2a

[0072] Inner hub C0b, C1b, C2b

[0073] Input hub C0c DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0075] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a centered element. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be a centered element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0077] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.

[0078] Example

[0079] See also Figure 1 and Figure 2 , this embodiment provides a vehicle 1000, which is a hybrid vehicle.

[0080] In this embodiment, the vehicle 1000 includes a chassis 100 and a body 200 connected to the chassis 100. The chassis 100 includes a powertrain 110, a rear axle differential 120, a transmission shaft 130, two front wheels 140, two rear wheels 150, two front wheel axles 160, and two rear wheel axles 170.

[0081] The powertrain 110 includes an engine 111 and a hybrid transmission system 112. The engine 111 may be a common internal combustion engine, which can convert the chemical energy of fuel (such as gasoline) into kinetic energy output.

[0082] The hybrid transmission system 112 has a motor, and the hybrid transmission system 112 is connected to the engine 111 to form a hybrid powertrain 110. In the powertrain 110, through clutch control, a pure electric output mode in which the motor outputs power alone, and a hybrid output mode in which the motor and the engine 111 output power in combination can be realized, which can adapt to different operating conditions and improve the output characteristics or energy consumption performance of the powertrain 110.

[0083] The output side of the hybrid transmission system 112 is connected to the two front wheels 140 through two front wheel half shafts 160. At the same time, the output side of the hybrid transmission system 112 is also connected to the rear axle differential 120 through the transmission shaft 130, and the rear axle differential 120 is connected to the two rear wheels 150 through two rear wheel half shafts 170. In this way, the powertrain 110 can drive the front wheels 140 and the rear wheels 150 to rotate, so as to realize the driving of the vehicle 1000.

[0084] See also Figure 3 and Figure 4 In this embodiment, the hybrid transmission system 112 includes a transmission part 10 and a motor integration part 30 .

[0085] The motor integrated part 30 includes a motor 30a, an engine clutch C0, a first clutch C1 and a second clutch C2. The engine clutch C0, the first clutch C1 and the second clutch C2 are respectively arranged in the motor 30a. The engine clutch C0 is connected between the engine 111 and the rotor 32 of the motor 30a.

[0086] The transmission part 10 includes a first input shaft 1a and a second input shaft 2a. The second input shaft 2a is coaxially sleeved outside the first input shaft 1a, and the first input shaft 1a and the second input shaft 2a can be rotatably supported by a bearing so that the two can rotate relatively independently. In addition, the first clutch C1 can be clutched between the first input shaft 1a and the rotor 32 of the motor 30a, and the second clutch C2 can be clutched between the second input shaft 2a and the rotor 32 of the motor 30a.

[0087] The transmission part 10 further includes a third speed driving gear 13a, a first speed driving gear 11a and a fifth speed driving gear 15a connected to the first input shaft 1a at intervals in the axial direction, and a second speed driving gear 12a and a fourth speed driving gear 14a connected to the second input shaft 2a at intervals in the axial direction.

[0088] The transmission part 10 also includes a first output shaft 1b and a reverse driven gear 16b, a fourth driven gear 14b and a first driven gear 11b axially spaced apart from each other, and a second output shaft 2b and a second driven gear 12b, a third driven gear 13b and a fifth driven gear 15b axially spaced apart from each other.

[0089] The first gear driven gear 11b meshes with the first gear driving gear 11a, the second gear driven gear 12b meshes with the second gear driving gear 12a, the third gear driven gear 13b meshes with the third gear driving gear 13a, the fourth gear driven gear 14b meshes with the fourth gear driving gear 14a, the fifth gear driven gear 15b meshes with the fifth gear driving gear 15a, and the reverse gear driven gear 16b meshes with the second gear driven gear 12b.

[0090] The transmission part 10 also includes a first / fourth gear bilateral synchronizer 17a, a second gear unilateral synchronizer 17b and a third / fifth gear bilateral synchronizer 17c. The first / fourth gear bilateral synchronizer 17a is connected to the first output shaft 1b and is located between the first gear driven gear 11b and the fourth gear driven gear 14b. The third / fifth gear bilateral synchronizer 17c is connected to the second output shaft 2b and is located between the third gear driven gear 13b and the fifth gear driven gear 15b. The second gear unilateral synchronizer 17b is connected to the second output shaft 2b and is located on one side of the second gear driven gear 12b.

[0091] In this embodiment, the first output shaft 1b and the second output shaft 2b are respectively located on both sides of the first input shaft 1a, and the first output shaft 1b and the second output shaft 2b are respectively parallel to the first input shaft 1a. Among them, the length of the second input shaft 2a is shorter than that of the first input shaft 1a, so that a part of the first input shaft 1a extends out of the second input shaft 2a. The third gear driving gear 13a, the first gear driving gear 11a and the fifth gear driving gear 15a are located at a section of the first output shaft 1b extending out of the second input shaft 2a, so that the second gear driving gear 12a, the fourth gear driving gear 14a, the third gear driving gear 13a, the first gear driving gear 11a and the fifth gear driving gear 15a are arranged in sequence along the axial direction of the first input shaft 1a and the second input shaft 2a, and the second gear driving gear 12a is located at one end close to the motor 30a.

[0092] The third / fifth gear double-sided synchronizer 17c corresponds to the first gear driving gear 11a in the radial direction, the first / fourth gear double-sided synchronizer 17a corresponds to the third gear driving gear 13a in the radial direction, the second gear single-sided synchronizer 17b corresponds to the fourth gear driving gear 14a in the radial direction, and the reverse gear driven gear 16b corresponds to the second gear driving gear 12a in the radial direction. The transmission part 10 is compactly and reasonably arranged, and the axial space of the first output shaft 1b and the second output shaft 2b is fully utilized to arrange each synchronizer and the reverse gear driven gear 16b, which is conducive to reducing the overall axial size of the transmission part 10.

[0093] Continue to see Figure 3 and Figure 4 In this embodiment, the hybrid transmission system 112 further includes a first output shaft output gear 18 a, a second output shaft output gear 18 b, an output transmission gear 18 c, a differential 20 and a connecting shaft 21 .

[0094] The first output shaft output gear 18a is fixedly connected to the first output shaft 1b, the second output shaft output gear 18b is fixedly connected to the second output shaft 2b, and the first output shaft output gear 18a and the second output shaft output gear 18b are respectively meshed with the output transmission gear 18c. The output transmission gear 18c and the differential 20 are respectively arranged on the connecting shaft 21, and the connecting shaft 21 serves as the front wheel axle 160 of the vehicle 1000, or is connected to the front wheel axle 160 of the vehicle 1000.

[0095] Combine the following Figure 3 to Figure 4 Different working states of the powertrain 110 of this embodiment are described.

[0096] When the engine clutch C0 is in the engaged state, and the first clutch C1 and the second clutch C2 are both in the disengaged state, the motor 30a transmits kinetic energy to the engine 111 to start the engine 111, or the engine 111 rotates to drive the motor 30a to rotate and generate electricity;

[0097] When the first clutch C1 is in the engaged state, and the engine clutch C0 and the second clutch C2 are both in the disengaged state, the motor 30a is transmitted to the wheel end of the vehicle through the first clutch C1 via the first, third or fifth gear of the transmission part 10 through the differential 20 to realize the first, third or fifth gear pure electric drive, or the rotation of the wheel end of the vehicle drives the motor 30a to rotate and generate electricity;

[0098] When the second clutch C2 is in the engaged state, and the engine clutch C0 and the first clutch C1 are both in the disconnected state, the motor 30a is transmitted to the wheel end through the second clutch C2 via the second gear, fourth gear or R gear (i.e., reverse gear) of the transmission part 10 through the differential 20 to realize the pure electric drive of the second gear, fourth gear or R gear, or the rotation of the wheel end drives the motor 30a to rotate and generate electricity;

[0099] When the engine clutch C0 is in the engaged state, and one of the first clutch C1 and the second clutch C2 is also in the engaged state, the engine 111 and the motor 30a jointly transmit the kinetic energy to the wheel end through the transmission part 10, realizing the parallel or super range extension mode.

[0100] Figure 5 The motor integrated part 30 in this embodiment is mainly shown.

[0101] See also Figure 5 The motor integrated part 30 in this embodiment includes a motor 30a, an engine clutch C0, a first clutch C1 and a second clutch C2 which are integrated together.

[0102] The motor 30a includes a stator 31, a rotor 32 and a housing 33. The stator 31 is fixed in the housing 33, and the rotor 32 is rotatably disposed in the housing 33 and can rotate relative to the stator 31.

[0103] The first clutch C1 and the second clutch C2 are coaxially arranged, and the radius of the first clutch C1 is larger than that of the second clutch C2, and the engine clutch C0 is located on the side of the rotor 32 away from the transmission part 10. In this way, the motor 30a and the three clutches can be compactly integrated together, the internal space of the motor 30a is fully utilized, the overall thickness of the motor integrated part 30 (referring to the dimension along the axis direction of the motor 30a) is greatly reduced, and the manufacturing cost is reduced.

[0104] In this embodiment, the motor integrated part 30 further includes an input hub C0c. The input hub C0c is used to be connected to the engine 111 and driven by the engine 111 to rotate.

[0105] The engine clutch C0, the first clutch C1 and the second clutch C2 can all be friction clutches, which can be engaged by pressing the friction plate group and the steel plate connected to the motor end, or separated by loosening. Of course, in other embodiments, the arrangement can also be reversed, that is, the friction plate group is arranged at the motor end, and the steel plate is arranged on each clutch.

[0106] In this embodiment, the outer rotating hub C0a of the engine clutch C0 and the outer rotating hub C1a of the first clutch C1 are an integral structure, and the outer rotating hub C2a of the second clutch C2 is fixedly connected to the outer rotating hub C1a of the first clutch C1, for example, by rivets. The inner rotating hub C0b of the engine clutch C0 is connected to the input rotating hub C0c. The inner rotating hub C1b of the first clutch C1 is connected to the first input shaft 1a, and the inner rotating hub C2b of the second clutch C2 is connected to the second input shaft 2a.

[0107] In this embodiment, the motor integrated part 30 further includes a rotor cover 34. The rotor cover 34 is fixedly connected to the outer rotating hub C0a of the engine clutch C0 (e.g., connected by rivets 35), so that the rotor cover 34, the outer rotating hub C0a of the engine clutch C0, and the outer rotating hub C1a of the first clutch C1 form a mounting groove 36, and the rotor 32 is disposed in the mounting groove 36. This structural arrangement is reasonable and compact, which is conducive to reducing the overall size of the motor integrated part 30, and each component is reliably connected and accurately positioned.

[0108] When the engine 111 is running, the engine 111 drives the inner hub C0b of the engine clutch C0 to rotate through the input hub C0c. At this time, if the engine clutch C0 is in the engaged state, the rotation will be transmitted to the outer hub C0a of the engine clutch C0, thereby driving the rotor 32 of the motor 30a to rotate; if the engine clutch C0 is in the disconnected state, the power of the engine 111 will not be transmitted to the rotor 32 of the motor 30a.

[0109] When the motor 30a is running, the rotation of the rotor 32 of the motor 30a can drive the outer hub C0a of the engine clutch C0, the outer hub C1a of the first clutch C1, and the outer hub C2a of the second clutch C2 to rotate together. At this time, if the engine clutch C0 is in a coupled state, the rotation of the rotor 32 can drive the engine 111 to start; if the first clutch C1 is in a coupled state, the rotation of the rotor 32 can drive the first input shaft 1a to rotate to achieve the third gear, the first gear, or the fifth gear output; if the first clutch C1 is in a coupled state, the rotation of the rotor 32 can drive the second input shaft 2a to rotate to achieve the R gear, the second gear, or the fourth gear output.

[0110] In summary of the above description, the hybrid transmission system 112 and the powertrain 110 in the embodiment of the present application, through the integration of a single motor and three clutches, combined with the five-speed design of the transmission part 10, have a compact and reasonable structure, and are conducive to making the power distribution of the powertrain 110 more uniform. The setting of the five gears can better keep the speed of the motor 30a or the engine 111 in the high-efficiency speed range when the maximum demand is reached, reduce power consumption and fuel consumption, and improve the economy of electric energy and fuel. In addition, the single motor 30a in this embodiment is placed outside the transmission part 10, which simplifies the structure of the transmission part 10, reduces the process requirements of the transmission part 10, and is also convenient for after-sales maintenance.

[0111] The above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred implementation modes, a person skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A hybrid transmission system for a vehicle, characterized in that: include: a motor integrated part, the motor integrated part comprising a motor, an engine clutch, a first clutch and a second clutch, the engine clutch, the first clutch and the second clutch being respectively arranged in the motor; the engine clutch being connected between the engine of the vehicle and the rotor of the motor; and, A transmission part, the transmission part comprises a first input shaft and a second input shaft, the second input shaft is coaxially sleeved outside the first input shaft; and the first clutch is clutchably disposed between the first input shaft and the rotor of the motor, and the second clutch is clutchably disposed between the second input shaft and the rotor of the motor; The transmission part further includes a third gear driving gear, a first gear driving gear and a fifth gear driving gear connected to the first input shaft at intervals in the axial direction; the transmission part further includes a second gear driving gear and a fourth gear driving gear connected to the second input shaft at intervals in the axial direction; The transmission part also includes a first output shaft and a reverse driven gear, a fourth driven gear and a first driven gear connected to the first output shaft in an axially spaced manner; The transmission part further includes a second output shaft and a second-speed driven gear, a third-speed driven gear and a fifth-speed driven gear connected to the second output shaft in an axially spaced manner; The first gear driven gear meshes with the first gear driving gear, the second gear driven gear meshes with the second gear driving gear, the third gear driven gear meshes with the third gear driving gear, the fourth gear driven gear meshes with the fourth gear driving gear, and the fifth gear driven gear meshes with the fifth gear driving gear; The transmission part also includes a first / fourth gear double-sided synchronizer, a third / fifth gear double-sided synchronizer and a second gear single-sided synchronizer; the first / fourth gear double-sided synchronizer is connected to the first output shaft and is located between the first gear driven gear and the fourth gear driven gear; The third / fifth gear double-sided synchronizer is connected to the second output shaft and is located between the third gear driven gear and the fifth gear driven gear; the second gear single-sided synchronizer is connected to the second output shaft and is located on one side of the second gear driven gear.

2. The hybrid transmission system according to claim 1, characterized in that: The second gear driving gear, the fourth gear driving gear, the third gear driving gear, the first gear driving gear and the fifth gear driving gear are sequentially arranged at intervals along the axis of the first input shaft and the second input shaft, and the second gear driving gear is located near one end of the motor; The third / fifth gear double-sided synchronizer corresponds radially to the first gear driving gear, the first / fourth gear double-sided synchronizer corresponds radially to the third gear driving gear, the second gear single-sided synchronizer corresponds radially to the fourth gear driving gear, and the reverse gear driven gear corresponds radially to the second gear driving gear.

3. The hybrid transmission system according to claim 1, characterized in that: The hybrid transmission system further includes a first output shaft output gear, a second output shaft output gear, an output transmission gear, a differential and a connecting shaft; The first output shaft output gear is fixedly connected to the first output shaft, the second output shaft output gear is fixedly connected to the second output shaft, the first output shaft output gear and the second output shaft output gear are respectively meshed with the output transmission gear; the output transmission gear and the differential are respectively arranged on the connecting shaft, and the connecting shaft is used to be connected to the wheels of the vehicle.

4. The hybrid transmission system according to claim 1, characterized in that: The first output shaft and the second output shaft are respectively located on both sides of the first input shaft, and the first output shaft and the second output shaft are respectively parallel to the first input shaft.

5. The hybrid transmission system according to any one of claims 1 to 4, characterized in that: The motor comprises a housing, a stator and a rotor; the stator is fixed in the housing, and the rotor is rotatably arranged in the housing and can rotate relative to the stator; The first clutch and the second clutch are coaxially arranged, and the radius of the first clutch is larger than the radius of the second clutch; the engine clutch is located on the side of the rotor away from the transmission part.

6. The hybrid transmission system according to claim 5, characterized in that: The motor integrated part further comprises an input hub, and the input hub is used for transmission connection to the engine; The outer rotating hub of the engine clutch and the outer rotating hub of the first clutch are an integral structure; the outer rotating hub of the second clutch is fixedly connected to the outer rotating hub of the first clutch; The inner rotating hub of the engine clutch is connected to the input rotating hub; the inner rotating hub of the first clutch is connected to the first input shaft, and the inner rotating hub of the second clutch is connected to the second input shaft.

7. The hybrid transmission system according to claim 6, characterized in that: The motor integrated part also includes a rotor cover; The rotor cover is fixedly connected to the outer hub of the engine clutch, so that the rotor cover, the outer hub of the engine clutch and the outer hub of the first clutch form a mounting groove; The rotor is arranged in the mounting groove.

8. The hybrid transmission system according to claim 1, characterized in that: The engine clutch, the first clutch and the second clutch are all friction clutches.

9. A powertrain, characterized in that: include: The hybrid transmission system according to any one of claims 1 to 8; as well as, An engine is transmission-connected to the hybrid power transmission system.

10. A vehicle, characterized in that: include: The powertrain as claimed in claim 9.

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