Hybrid drive system and vehicle

Abstract

The present disclosure relates to a hybrid power drive system and a vehicle. The system includes an engine, a transmission, and a drive motor. The transmission includes a first input shaft, a second input shaft, an output shaft, a first gear gear set, a second gear gear set, a first clutch, and a second clutch. The output shaft is used to transmit power to the wheels. The first gear gear set includes a first driving gear carried by the first input shaft and a first driven gear carried by the output shaft. The second gear gear set includes a second driving gear carried by the second input shaft and a second driven gear carried by the output shaft. The first clutch is arranged between the output shaft of the engine and the first input shaft, and is used to engage or disconnect the power transmission between the engine and the first gear gear set. The second clutch is arranged between the output shaft of the engine and the second input shaft, and is used to engage or disconnect the power transmission between the engine and the second gear gear set. The drive motor is connected to the first input shaft or the output shaft.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular, to a hybrid power drive system and a vehicle equipped with the hybrid power drive system. Background Art

[0002] In today's world, human beings are facing two major challenges: energy shortage and environmental degradation. Traditional cars are increasingly plagued by the oil crisis, and energy conservation and environmental protection have gradually become the development theme of the automotive industry. In recent years, hybrid vehicles with two different power sources that reduce fuel consumption and emissions have been developed and applied, and put into commercial production and launched on the market.

[0003] The power transmission system of hybrid vehicles can be generally divided into single-mode type and multi-mode type according to the driving mode. Among them, the multi-mode power transmission system has attracted much attention from designers due to its many advantages, such as high power transmission efficiency or reasonable layout optimization. The many advantages of the hybrid system depend on the connection relationship between the engine, drive motor, gearbox and torque transmission device. Therefore, the design of the connection structure of the power transmission system of hybrid vehicles is also under continuous research. Summary of the invention

[0004] A first object of the present disclosure is to provide a hybrid driving system capable of achieving multiple driving modes.

[0005] In order to achieve the above object, the present disclosure provides a hybrid power drive system, the hybrid power drive system comprising:

[0006] engine;

[0007] A transmission, the transmission comprising:

[0008] a first input shaft, the output shaft of the engine being coaxially connected to the first input shaft;

[0009] a second input shaft, the second input shaft being coaxial with the first input shaft and having an empty sleeve;

[0010] An output shaft, the output shaft is arranged in parallel with the first input shaft and is used to transmit power to the wheels;

[0011] A first gear gear set, comprising a first driving gear carried by the first input shaft and a first driven gear carried by the output shaft;

[0012] a second gear set having a different gear ratio than the first gear set, the second gear set comprising a second driving gear carried by the second input shaft and a second driven gear carried by the output shaft;

[0013] A dual clutch module, the dual clutch module comprising:

[0014] a first clutch, disposed between the output shaft of the engine and the first input shaft, for engaging or disengaging power transmission between the engine and the first gear set;

[0015] a second clutch, disposed between the output shaft of the engine and the second input shaft, for engaging or disengaging power transmission between the engine and the second gear set;

[0016] A driving motor is connected to the first input shaft or the output shaft to output power to the output shaft.

[0017] Optionally, the hybrid drive system further comprises a generator connected to an output shaft of the engine via a generator output gear set, so that the engine can drive the generator to generate electricity.

[0018] Optionally, the transmission further comprises:

[0019] a third gear gear set having a different transmission ratio from the first gear gear set and the second gear gear set, the third gear gear set comprising a third driving gear carried by the second input shaft and a third driven gear carried by the output shaft;

[0020] A synchronizer is axially slidably disposed on the second input shaft and is located between the second gear gear set and the third gear gear set to selectively engage with the second gear gear set or the third gear gear set.

[0021] Optionally, the transmission ratio of the first gear gear set is greater than the rotation ratio of the second gear gear set, and the transmission ratio of the second gear gear set is greater than the transmission ratio of the third gear gear set.

[0022] Optionally, the drive motor is coaxially connected to the first input shaft, and outputs power to the output shaft through the first gear gear set.

[0023] Optionally, the hybrid drive system further comprises a power output unit, the power output unit comprises an output gear and a differential, the output gear is respectively connected to the output shaft and the differential, and the differential is connected to the wheels.

[0024] Optionally, a disconnect mechanism is provided between the drive motor and the first gear gear set, for engaging or disconnecting power transmission between the drive motor and the first gear gear set.

[0025] Optionally, a shock absorber is provided on the output shaft of the engine.

[0026] Optionally, the hybrid drive system further comprises a rotation speed sensing device for monitoring a speed difference between the output shaft of the engine and the first input shaft and / or a speed difference between the output shaft of the engine and the second input shaft.

[0027] A second object of the present disclosure is to provide a vehicle including the above-mentioned hybrid drive system.

[0028] The present disclosure achieves a balance of multiple driving modes by arranging an engine, a drive motor and two clutches in a hybrid drive system, for example, it can realize a pure electric drive mode, an engine direct drive mode with different gears, an extended range mode, a hybrid drive mode with different gears, an energy recovery mode and a parking power generation mode, etc. Secondly, due to the realization of multi-gear power output, it can ensure that the engine always remains in the high-efficiency zone, reducing the fuel consumption of the whole vehicle. In the process of shifting, the power is compensated by the drive motor, which can also ensure that the power is not interrupted during the shifting process, and ensure the smoothness of the gear switching.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a structural schematic diagram of a hybrid power drive system provided by an exemplary embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram of power transmission of a hybrid drive system in a pure electric drive mode provided by an exemplary embodiment of the present disclosure;

[0033] Figure 3a-3c is a schematic diagram of power transmission of a hybrid drive system in an engine direct drive mode provided by an exemplary embodiment of the present disclosure;

[0034] Figure 4 is a schematic diagram of power transmission of a hybrid drive system in an energy recovery mode provided by an exemplary embodiment of the present disclosure;

[0035] Figure 5 is a schematic diagram of power transmission of a hybrid drive system in an idle charging mode provided by an exemplary embodiment of the present disclosure;

[0036] Figure 6is a schematic diagram of power transmission of a hybrid drive system in an extended range mode provided by an exemplary embodiment of the present disclosure;

[0037] Figure 7a-7b Schematic diagram of power transmission of a hybrid drive system in a hybrid drive mode provided by an exemplary embodiment of the present disclosure.

[0038] Description of Reference Numerals

[0039] 1-engine, 2-drive motor, 3-generator, 4-first input shaft, 5-second input shaft, 6-output shaft, 7-first driving gear, 8-first driven gear, 9-second driving gear, 10-second driven gear, 11-third driving gear, 12-third driven gear, 13-first clutch, 14-second clutch, 15-synchronizer, 16-power output part, 161-output gear, 162-differential, 17-shock absorber. 18-generator output gear set. DETAILED DESCRIPTION

[0040] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0041] like Figures 1 to 7b As shown, the present disclosure aims to provide a hybrid drive system that can be used in an oil-electric hybrid or plug-in hybrid system. It includes an engine 1, a transmission and a drive motor 2. The engine 1 and the drive motor 2 can respectively transmit power to the wheels through the transmission to drive the vehicle. The transmission includes a first input shaft 4, a second input shaft 5, an output shaft 6, a first gear gear set, a second gear gear set, and a dual clutch module, wherein the dual clutch module includes a first clutch 13 and a second clutch 14. The first input shaft 4 is coaxially connected to the output shaft of the engine 1, the second input shaft 5 is coaxially connected to the first input shaft 4, and the output shaft 6 is arranged in parallel with the first input shaft 4 for transmitting power to the wheels. The first gear gear set includes a first driving gear 7 carried by the first input shaft 4 and a first driven gear 8 carried by the output shaft 6, and the second gear gear set includes a second driving gear 9 carried by the second input shaft 5 and a second driven gear 10 carried by the output shaft 6, wherein the first gear gear set and the second gear gear set have different transmission ratios, and the transmission ratio makes the first gear gear set and the second gear gear set have different output torques or speeds, which can serve as a theoretical basis for achieving different gear switching.

[0042] The first clutch 13 and the second clutch 14 in the dual clutch module can be integrated together, for example, they can be arranged on the same housing or frame. The output shaft of the engine 1 is connected to the housing or frame, the first clutch 13 is connected to the first input shaft 4, and the second clutch 14 is connected to the second input shaft 5. When the engine 1 is working, its power can be transmitted to the housing or frame of the dual clutch module. When the first clutch 13 is engaged, the power of the engine 1 is transmitted from the housing or frame to the first clutch 13, and then the power of the engine 1 is transmitted to the first input shaft 4; when the second clutch 14 is engaged, the power of the engine 1 is transmitted from the housing or frame to the second clutch 14, and then the power of the engine 1 is transmitted to the second input shaft 5.

[0043] The drive motor 2 can be connected to either the first input shaft 4 or the output shaft 6 to output power to the output shaft 6 . In other words, the difference lies in whether the drive motor 2 drives the output shaft 6 directly or indirectly. Figure 1 It is exemplarily shown that the drive motor 2 is indirectly connected to the output shaft 6 through the first gear gear set. Specifically, the drive motor 2 is connected to the first input shaft 4. When the drive motor 2 is working, it can drive the first driving gear 7 carried on the first input shaft 4 to rotate, and then transmit power to the output shaft 6 through the first driven gear 8 carried on the output shaft 6 that is meshed with the first driving gear 7.

[0044] When the first clutch 13 is engaged and the second clutch 14 is disengaged, the power of the engine 1 can be transmitted to the first gear gear set through the first input shaft 4, thereby driving the output shaft 6 to rotate. In this way, the present disclosure realizes an integrated design, that is, the engine 1 and the drive motor 2 share the first gear gear set and the output shaft 6, which can reduce the number of parts and components, reduce the overall volume of the drive system, reasonably optimize the layout space, facilitate vehicle installation, and also reduce costs. In addition, the engine 1 sharing the first gear gear set can also realize the engine starting function.

[0045] In practical applications, the hybrid drive system disclosed in the present invention may further include a power output unit 16, which includes an output gear 161 and a differential 162. The differential 162 may be connected to the wheels via a drive shaft, and the output gear 161 is respectively connected to the output shaft 6 and the differential 162, thereby further transmitting the power transmitted from the engine 1 and the drive motor 2 to the output shaft 6 to the wheels.

[0046] The hybrid drive system provided by the present disclosure can take into account a variety of drive modes, which will be described below in conjunction with the accompanying drawings.

[0047] Figure 21 is a schematic diagram of power transmission of a hybrid drive system in a pure electric drive mode according to an embodiment of the present disclosure. The engine 1 is not working, the drive motor 2 is working, and the first clutch 13 and the second clutch 14 are both disconnected. The power of the drive motor 2 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. The reverse rotation of the drive motor 2 can realize the reverse function. In this drive mode, the wheels are directly driven by the drive motor 2, the transmission chain is the shortest, and the components involved in the power transmission are the least, which improves the efficiency of the transmission.

[0048] Figure 3a-3c It is a schematic diagram of power transmission of a hybrid drive system in an engine direct drive mode provided according to an embodiment of the present disclosure. In order to realize multi-gear drive, the hybrid drive system of the present disclosure may be provided with multiple gear sets, and the multiple gear sets have different transmission ratios. In addition to the first gear gear set and the second gear gear set described in the above embodiment, the hybrid drive system of the present disclosure may further include a third gear gear set and a synchronizer 15. The third gear gear set has a different transmission ratio from the first gear gear set and the second gear gear set, respectively. The third gear gear set is similar to the second gear gear set, and includes a third driving gear 11 carried by the second input shaft 5 and a third driven gear 12 carried by the output shaft 6.

[0049] The synchronizer 15 can be axially slidably disposed on the second input shaft 5 and is located between the second gear gear set and the third gear gear set, specifically, between the second driving gear 9 and the third driving gear 11. The synchronizer 15 selectively engages with the second gear gear set or the third gear gear set. The present disclosure does not limit the specific structure of the synchronizer 15, and any synchronizer conventionally used in the art can be used. For example, the synchronizer 15 can be meshed with the second gear gear set or the third unit gear set through a sliding sleeve structure. Specifically, a first bevel tooth is disposed on the inner circumferential surface of the synchronizer 15, and the second driving gear 9 and the third driving gear 11 are axially protruding with a second bevel tooth that can cooperate with the first bevel tooth to achieve power transmission.

[0050] As an embodiment of the present disclosure, the transmission ratio of the first gear gear set is greater than the transmission ratio of the second gear gear set, and the transmission ratio of the second gear gear set is greater than the transmission ratio of the third gear gear set. It should be understood that the size relationship of different transmission ratios between multiple gears can be applied to the present disclosure and achieve the purpose of switching between multiple gears. According to the relationship between the transmission ratio and the output torque, the larger the transmission ratio, the larger the output torque. Therefore, for the convenience of the following description, the gear corresponding to the first gear gear set is referred to as the low-speed gear, the gear corresponding to the second gear gear set is referred to as the medium-speed gear, and the gear corresponding to the third gear gear set is the high-speed gear. In addition, as needed, it is not limited to three gears, and any number of gear switching can be set based on the same principle.

[0051] Figure 3a The diagram shows a power transmission diagram of the engine first gear direct drive. The engine 1 is working, the drive motor 2 is not working, the first clutch 13 is engaged, and the second clutch 14 is disengaged. The power of the engine 1 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. Figure 3b The diagram shows a power transmission diagram of the engine second gear direct drive. The engine 1 is working, the drive motor 2 is not working, the first clutch 13 is disconnected, the second clutch 14 is engaged, the synchronizer 15 is connected to the second gear gear set, and the power of the engine 1 is transmitted to the output shaft 6 through the second gear gear set, and then transmitted to the wheels through the power output unit 16. It is worth noting that in the mode including only two gears of drive, the first clutch 13 is disconnected and the second clutch 14 is engaged to achieve the switch from the first gear drive to the second gear drive without the participation of the synchronizer 15. Figure 3b The diagram shows a power transmission diagram of the engine's three-gear direct drive. The engine 1 is working, the drive motor 2 is not working, the first clutch 13 is disconnected, the second clutch 14 is engaged, the synchronizer 15 is connected to the third-gear gear set, and the power of the engine 1 is transmitted to the output shaft 6 through the third-gear gear set, and then transmitted to the wheels through the power output unit 16.

[0052] By controlling the engagement or disengagement of the first clutch 13 and the second clutch 14, a two-gear or three-gear direct drive of the engine 1 is achieved. When a lower vehicle speed is required, a gear with a larger transmission ratio can be selected; when a higher vehicle speed is required, a gear with a lower transmission ratio can be selected, thereby maximizing the use of the high-efficiency area of ​​the engine 1 and obtaining a wider vehicle speed range. At the same time, it is conducive to miniaturization of the motor and saving system costs.

[0053] The present disclosure achieves the purpose of transmitting power to the output shaft 6 by the first gear gear set and the second gear gear set separately through the dual clutch module with the first clutch 13 and the second clutch 14. In this way, in the process of gear switching, it is not necessary to mesh the gears that are not meshed and have different speeds as in the related art, avoiding the situation that the gear shifting process is not smooth due to the unsmooth gear meshing process during gear shifting, thereby improving the driving experience. In addition, in the process of gear shifting, the power can also be compensated by the drive motor 2 to ensure that the power is not interrupted during the gear shifting process and the smoothness of the gear switching is guaranteed. Optionally, the hybrid drive system may also include a speed sensor device (not shown in the figure) for monitoring the speed difference between the output shaft of the engine 1 and the first input shaft 4 and / or the speed difference between the output shaft of the engine 1 and the second input shaft 5, wherein the speed sensor may be a rotary transformer. In this way, the speed of the shafts at both ends of the clutch can be controlled according to the actual measured speed by a controller connected to the rotary transformer, and when the speed difference is reduced to a preset threshold range, the clutch is allowed to engage, further ensuring the smoothness of the gear switching.

[0054] Figure 4 1 is a schematic diagram of power transmission of a hybrid drive system in energy recovery mode according to an embodiment of the present disclosure, wherein the engine 1 and the drive motor 2 are both working, and the first clutch 13 and the second clutch 14 are both disconnected. The kinetic energy of the wheel is transmitted to the output shaft 6 through the power output unit 16, and then transmitted to the drive motor through the first gear, thereby generating electricity for the drive motor 2 and recovering energy into the power battery of the drive motor 2.

[0055] According to an embodiment of the present disclosure, the hybrid driving system of the present disclosure may further include a generator 3, which is connected to the output shaft of the engine 1 through a generator output gear set 18, so that the engine 1 can drive the generator 3 to generate electricity. Figure 5 1 is a schematic diagram of power transmission of a hybrid drive system in an idle charging mode according to an embodiment of the present disclosure. The engine 1 is working, the drive motor 2 is not working, and the first clutch 13 and the second clutch 14 are both disconnected. The power of the engine 1 is transmitted to the generator 3 through the generator output gear set 18 to charge the power battery of the generator 3.

[0056] Similar to the drive motor 2, the generator 3 can also be used to drive the wheels to rotate. The generator 3 can drive the wheels alone, or form a dual-motor drive mode with the drive motor 2, or the generator 3, the engine 1 and the drive motor 2 together form a three-power drive mode. Take the dual-motor drive mode as an example, in which the drive motor 2 is the main drive source, full power output, and the generator 3 is the auxiliary drive source, limited power output. The first clutch 13 is engaged and the second clutch 14 is disconnected. The power of the drive motor 2 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. The power of the generator 3 is also transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. It should be noted that when the first clutch 13 is disconnected and the second clutch 14 is engaged, a multi-gear drive mode under generator auxiliary drive can be realized. This drive mode can be used in large load situations such as acceleration, climbing, overtaking, and high speed, and can provide better economy and lower noise.

[0057] Figure 6 It is a schematic diagram of power transmission of a hybrid drive system in an extended range mode according to an embodiment of the present disclosure. Both the engine 1 and the drive motor 2 are working, and the first clutch 13 and the second clutch 14 are disconnected. The power of the engine 1 is transmitted to the generator 3 through the generator output gear set 18 to charge the power battery of the generator 3. The power of the drive motor 2 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. This driving mode can be used for vehicle downhill, braking or deceleration, and can maximize the feedback energy.

[0058] Figure 7a-7b It is a schematic diagram of power transmission of a hybrid drive system in a hybrid drive mode according to an embodiment of the present disclosure. Figure 7a The figure shows a schematic diagram of power transmission of a first-gear hybrid drive. The engine 1 and the drive motor 2 are both working, the first clutch 13 is engaged, and the second clutch 14 is disconnected. In this driving mode, the power of the engine 1 and the power of the drive motor 2 are coupled and superimposed on the first input shaft 4. Specifically, the power of the engine 1 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. The power of the drive motor 2 is transmitted to the output shaft 6 through the first gear gear set, and then transmitted to the wheels through the power output unit 16. Figure 7bThe figure shows a schematic diagram of power transmission of a second-gear hybrid drive. The engine 1 and the drive motor 2 are both working, the first clutch 13 is disconnected, and the second clutch 14 is engaged. In this driving mode, the power of the engine 1 and the power of the drive motor 2 are coupled and superimposed on the output shaft 6. Specifically, the power of the engine 1 is transmitted to the output shaft 6 through the second-gear gear set, and then transmitted to the wheels through the power output unit 16. The power of the drive motor 2 is transmitted to the output shaft 6 through the first-gear gear set, and then transmitted to the wheels through the power output unit 16. Figure 7b Although the second gear hybrid drive is shown, it should be understood that the principle of the third gear hybrid drive is the same. At this time, the power of the engine 1 needs to be output through the third gear gear. The specific process is not repeated here. Multi-engine simultaneous driving can maximize the power performance.

[0059] In the present disclosure, a disconnect mechanism (not shown in the figure) can be provided between the drive motor 2 and the first gear gear set to engage or disconnect the power transmission between the drive motor 2 and the first gear gear set. For example, in the engine direct drive mode, disconnecting the power transmission between the drive motor 2 and the first gear gear set can improve the efficiency of the engine direct drive and avoid the drive motor 2 generating back electromotive force at high speed. The disconnect mechanism can be a clutch or other structures that are well known to those skilled in the art and can interrupt the power transmission, which will not be described in detail here. In addition, if Figure 1 As shown, a shock absorber 17 can be provided on the output shaft of the engine 1 to prevent the vibration generated when the engine 1 is working from being transmitted to the transmission and affecting the operation of various components in the transmission. The shock absorber 17 can adopt any vibration reduction mechanism known to ordinary technicians in the field of power transmission, which will not be described in detail here.

[0060] A second object of the present disclosure is to provide a vehicle equipped with the above-mentioned hybrid drive system and having all the beneficial effects of the system.

[0061] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0062] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0063] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A hybrid drive system, It is characterized in that The hybrid drive system comprises: Engine (1); A transmission, the transmission comprising: a first input shaft (4), the output shaft of the engine (1) being coaxially connected to the first input shaft (4); A second input shaft (5), the second input shaft (5) being coaxial with the first input shaft (4) and having an empty sleeve; an output shaft (6), the output shaft (6) being arranged in parallel with the first input shaft (4) and being used to transmit power to wheels; A first gear gear set, comprising a first driving gear (7) carried by the first input shaft (4) and a first driven gear (8) carried by the output shaft (6); a second gear gear set having a different transmission ratio from the first gear gear set, the second gear gear set comprising a second driving gear (9) carried by the second input shaft (5) and a second driven gear (10) carried by the output shaft (6); a third gear gear set having a different transmission ratio from the first gear gear set and the second gear gear set, the third gear gear set comprising a third driving gear (11) carried by the second input shaft (5) and a third driven gear (12) carried by the output shaft (6); A dual clutch module, the dual clutch module comprising: A first clutch (13) is arranged between the output shaft of the engine (1) and the first input shaft (4), and is used to engage or disengage power transmission between the engine (1) and the first gear gear set; A second clutch (14) is arranged between the output shaft of the engine (1) and the second input shaft (5), and is used to engage or disengage power transmission between the engine (1) and the second gear gear set; a synchronizer (15) slidably disposed on the second input shaft (5) in an axial direction and located between the second gear gear set and the third gear gear set so as to selectively engage with the second gear gear set or the third gear gear set; A drive motor (2), the drive motor (2) being connected to the first input shaft (4) or the output shaft (6) so as to output power to the output shaft (6).

2. The hybrid drive system according to claim 1, It is characterized in that The hybrid drive system further comprises a generator (3) connected to an output shaft of the engine (1) via a generator output gear set (18), so that the engine (1) can drive the generator (3) to generate electricity.

3. The hybrid drive system according to claim 1, It is characterized in that The transmission ratio of the first gear gear set is greater than the rotation ratio of the second gear gear set, and the transmission ratio of the second gear gear set is greater than the transmission ratio of the third gear gear set.

4. The hybrid drive system according to claim 1, It is characterized in that The drive motor (2) is coaxially connected to the first input shaft (4), and outputs power to the output shaft (6) via the first gear gear set.

5. The hybrid drive system according to claim 1, It is characterized in that The hybrid drive system further comprises a power output unit (16), the power output unit (16) comprising an output gear (161) and a differential (162), the output gear (161) being connected to the output shaft (6) and the differential (162) respectively, and the differential (162) being connected to wheels.

6. The hybrid drive system according to claim 1, It is characterized in that A disconnect mechanism is provided between the drive motor (2) and the first gear gear set, for engaging or disconnecting power transmission between the drive motor (2) and the first gear gear set.

7. The hybrid drive system according to claim 1, It is characterized in that A shock absorber (17) is provided on the output shaft of the engine (1).

8. The hybrid drive system according to claim 1, It is characterized in that The hybrid drive system further comprises a rotation speed sensor device for monitoring a speed difference between the output shaft of the engine (1) and the first input shaft (4) and / or a speed difference between the output shaft of the engine (1) and the second input shaft (5).

9. A vehicle, It is characterized in that The vehicle comprises a hybrid drive system as claimed in any one of claims 1-8.

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