Hybrid drive system and vehicle

Abstract

This disclosure provides a hybrid power drive system and a vehicle, belonging to the field of vehicle technology. The hybrid power drive system includes a first motor, a first transmission assembly, a second motor, a first switching assembly, a second transmission assembly, an engine, and a second switching assembly. The first transmission assembly is connected to the first motor and the wheels of the vehicle. The first switching assembly is used to selectively connect or disconnect the second motor from the first transmission assembly. The second transmission assembly is connected to the first transmission assembly. The second switching assembly is used to selectively connect or disconnect the engine from one of the second motor and the second transmission assembly. Using this disclosure, at least five driving modes meet the diverse power requirements of the vehicle under complex operating conditions.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more specifically to a hybrid power drive system and a vehicle. Background Technology

[0002] Typically, a hybrid drive system includes an engine, an electric motor, and a transmission assembly, with both the engine and the electric motor driving the vehicle's wheels via the transmission assembly.

[0003] However, this power drive system only has two driving modes: one is driven by the electric motor alone, and the other is driven by both the engine and the electric motor. Its driving mode is relatively simple and cannot meet the diverse power needs of the vehicle under complex driving conditions. Summary of the Invention

[0004] This disclosure provides a hybrid power drive system and vehicle, which can solve the technical problems existing in the related art. The technical solution is as follows: In a first aspect, this disclosure provides a hybrid power drive system, the system comprising a first motor, a first transmission assembly, a second motor, a first switching assembly, a second transmission assembly, an engine, and a second switching assembly; The first transmission assembly is connected to the first motor and the vehicle's wheels via transmission. The first switching component is used to selectively connect or disconnect the second motor from the first transmission component. The second transmission component is connected to the first transmission component in a transmission connection; The second switching component is used to selectively connect or disconnect the engine from one of the second motor and the second transmission component.

[0005] In one possible implementation, the system further includes a third transmission component and a fourth transmission component with different transmission ratios, both of which are connected to the second motor drive. The first switching component is used to selectively connect or disconnect the first transmission component from one of the third transmission component and the fourth transmission component.

[0006] In one possible implementation, the third transmission component includes a first gear and a second gear, the first gear rotating coaxially with the second motor, the second gear meshing with the first gear and being drively connected to the first switching component; and / or, The fourth transmission component includes a third gear and a fourth gear. The third gear rotates coaxially with the second motor, and the fourth gear meshes with the third gear and is connected to the first switching component in a transmission connection.

[0007] In one possible implementation, the second transmission component includes a third switching component, and a fifth transmission component and a sixth transmission component with different transmission ratios; The third switching component is used to connect the second switching component to one of the fifth transmission component and the sixth transmission component, or to disconnect both of them. The fifth and sixth transmission components are both connected to the first transmission component.

[0008] In one possible implementation, the fifth transmission component includes a fifth gear, which is driveably connected to the third switching component and also driveably connected to the first transmission component; and / or, The sixth transmission component includes a sixth gear and a seventh gear. The sixth gear is connected to the third switching component, and the seventh gear meshes with the sixth gear and is also connected to the first transmission component.

[0009] In one possible implementation, the third switching component includes a first clutch and a second clutch; The first clutch is used to engage or disengage the fifth transmission assembly from the second switching assembly; The second clutch is used to engage or disengage the sixth transmission assembly from the second switching assembly.

[0010] In one possible implementation, the third switching component is a synchronizer.

[0011] In one possible implementation, the system further includes a differential connected to the first transmission assembly and the wheel drive.

[0012] In one possible implementation, the first transmission component includes an eighth gear, a ninth gear, and a tenth gear; The eighth gear rotates coaxially with the first motor; The ninth gear meshes with the eighth gear; The tenth gear rotates coaxially with the ninth gear and is connected to the differential and the first switching assembly in a transmission manner.

[0013] In a second aspect, this disclosure provides a vehicle that includes a hybrid drive system as described in any one of the first aspects.

[0014] The technical solution provided in this disclosure includes at least the following beneficial effects: This disclosure provides a hybrid drive system capable of achieving at least five drive modes: A first drive mode in which a first motor drives the wheels independently via a first transmission assembly, a first switching assembly disconnects the second motor from the first transmission assembly, and a second switching assembly disconnects the engine from both the second motor and the second transmission assembly; a second drive mode in which the first motor drives the wheels via the first transmission assembly, and simultaneously, the first switching assembly connects the second motor to the first transmission assembly so that the second motor can drive the wheels via the first transmission assembly, and the second switching assembly disconnects the engine from both the second motor and the second transmission assembly; a third drive mode in which the first motor drives the wheels via the first transmission assembly, and simultaneously, the first switching assembly disconnects the second motor from the first transmission assembly. In the first drive mode, the first motor drives the wheels through the first drive assembly. Simultaneously, the first switching assembly disconnects the second motor from the first drive assembly and connects the engine to the second drive assembly, enabling the engine to drive the wheels through both the first and second drive assemblies. In the third drive mode, the first motor drives the wheels through the first drive assembly. Simultaneously, the first switching assembly connects the second motor to the first drive assembly, enabling the second motor to drive the wheels through the first drive assembly, and the second switching assembly connects the engine to the second drive assembly, enabling the engine to drive the wheels through both the first and second drive assemblies. Thus, these at least five drive modes meet the diverse power requirements of the vehicle under complex operating conditions.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a hybrid power drive system shown in an embodiment of this disclosure; Figure 2 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 3This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 4 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 5 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 6 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 7 This is a schematic diagram of the structure of a hybrid power drive system shown in an embodiment of this disclosure; Figure 8 This is a schematic diagram of the structure of a hybrid power drive system shown in an embodiment of this disclosure; Figure 9 This is a schematic diagram of the structure of a hybrid power drive system shown in an embodiment of this disclosure; Figure 10 This is a schematic diagram of the structure of a hybrid power drive system shown in an embodiment of this disclosure; Figure 11 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 12 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 13 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 14 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 15 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 16 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 17 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 18 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 19 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 20 This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 21This is a schematic diagram illustrating a driving mode of a hybrid power drive system according to an embodiment of this disclosure; Figure 22 This is a schematic diagram illustrating the driving mode of a hybrid power drive system according to an embodiment of this disclosure.

[0018] Legend 1. First motor; 2. First transmission assembly; 21. Eighth gear; 22. Ninth gear; 23. Tenth gear; 3. Second motor; 4. First switching component; 5. Second transmission assembly; 51. Third switching assembly; 52. Fifth transmission assembly; 53. Sixth transmission assembly; 511. First clutch; 512. Second clutch; 531. Sixth gear; 532. Seventh gear; 6. Engine; 7. Second switching component; 8. Third transmission assembly; 81. First gear; 82. Second gear; 9. Fourth transmission component; 91. Third gear; 92. Fourth gear; 10. Differential; 100. Wheel. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0020] This disclosure provides a hybrid power drive system, see [link to relevant documentation]. Figure 1 The system includes a first motor 1, a first transmission assembly 2, a second motor 3, a first switching assembly 4, a second transmission assembly 5, an engine 6, and a second switching assembly 7.

[0021] The first transmission component 2 is connected to the first motor 1 and the vehicle wheels 100. It is understood that the transmission connection in this embodiment can be any structure or form of transmission connection. For example, it can be a transmission connection achieved through gear meshing, or a transmission connection achieved through coaxial fixed connection to achieve coaxial rotation, or other arbitrary connection forms. This embodiment does not limit these aspects.

[0022] The first switching component 4 is used to selectively connect or disconnect the second motor 3 from the first transmission component 2. That is, the first switching component 4 can connect the second motor 3 to the first transmission component 2, or disconnect the second motor 3 from the first transmission component 2.

[0023] The second transmission component 5 is connected to the first transmission component 2.

[0024] The second switching component 7 is used to selectively connect or disconnect the engine 6 from one of the second motor 3 and the second transmission component 5. That is, the second switching component 7 can connect the engine 6 to the second motor 3, connect the engine 6 to the second transmission component 5, or disconnect the engine 6 from both the second motor 3 and the second transmission component 5.

[0025] This hybrid drive system is capable of achieving any one or more of the following five drive modes: First driving mode: See Figure 2 The first motor 1 drives the wheel 100 to rotate independently through the first transmission assembly 2. The first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. In this way, a single-motor drive mode is achieved.

[0026] Second driving mode: See Figure 3 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. This achieves a dual-motor drive mode.

[0027] The third driving mode: see [link] Figure 4 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second motor 3, enabling the engine 6 to drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. This achieves the first hybrid drive mode, which can also be called a hybrid series mode.

[0028] Fourth driving mode: See Figure 5 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via the second transmission assembly 5 and the first transmission assembly 2. This achieves the second hybrid drive mode, which can also be considered the first hybrid parallel mode.

[0029] Fifth driving mode: See Figure 6The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via both the second transmission assembly 5 and the first transmission assembly 2. This achieves a third hybrid drive mode, which can also be considered a second hybrid parallel mode.

[0030] In this way, the above-mentioned at least five driving modes meet the diverse power requirements of the vehicle under complex operating conditions. Compared with related technologies that only have two driving modes, the above five driving modes expand the operating condition coverage of the hybrid drive system, enabling the system to flexibly allocate various power sources according to the actual driving conditions of the vehicle. This ensures efficient utilization of power sources under different operating conditions, thereby improving the overall vehicle power output capability and meeting the diverse power requirements of the vehicle under complex driving conditions.

[0031] Hybrid drive systems deeply integrate the advantages of internal combustion engines and electric drive units, relying on core components such as gears to achieve intelligent power distribution and coordinated output. They can automatically switch between multiple operating modes, such as pure electric drive and hybrid electric drive, according to different driving scenarios. In start-up and low-speed congestion, the electric motor is prioritized to achieve quiet driving with zero fuel consumption and zero emissions. In scenarios such as high-speed cruising and heavy-load overtaking, the engine is automatically activated and works with the electric motor to output strong power. At the same time, through intelligent energy management strategies, the engine is kept running stably in the high thermal efficiency range. Combined with the braking energy recovery system, the driving kinetic energy is converted into electrical energy to recharge the power battery. This not only significantly reduces the vehicle's fuel consumption and exhaust emissions, but also completely eliminates the range anxiety of pure electric vehicles. It balances the smoothness of power response, driving comfort, and long-term economic efficiency, making it the mainstream automotive power solution that meets environmental requirements and users' diverse travel needs.

[0032] In this disclosed implementation, the hybrid drive system can intelligently switch between multiple drive modes based on real-time road conditions, driving load, and battery charge. In congested, low-speed urban areas, it prioritizes pure electric mode to achieve quiet and smooth driving with zero fuel consumption and zero emissions, avoiding prolonged low-speed operation of the engine in an inefficient and fuel-intensive range. During high-speed cruising, it switches to engine direct drive mode to avoid the heat and energy consumption spikes caused by high-speed electric motor operation, allowing the engine to operate stably within its most thermally efficient range. Under heavy load scenarios such as rapid acceleration and hill climbing, it automatically triggers a parallel hybrid drive mode, allowing the engine and electric motor to work together seamlessly. The peak torque output instantly releases a powerful force far exceeding that of gasoline vehicles of the same displacement. At the same time, it can automatically switch to kinetic energy recovery mode during deceleration and downhill, efficiently converting the braking energy that would otherwise be wasted by the brake pads into electrical energy to recharge the power battery. This not only significantly reduces the overall fuel consumption and exhaust emissions in all scenarios, but also completely solves the range anxiety and charging pain points of pure electric vehicles. It also takes into account the power response, driving smoothness and long-term economic efficiency in different travel scenarios, allowing users to obtain a highly adaptable driving experience in various travel scenarios such as urban commuting, long-distance highways, and off-road climbing.

[0033] In this embodiment of the disclosure, the first motor 1 and the second motor 3 can be two independent motors, or the first motor 1 and the second motor 3 can be different rotor parts of a dual-rotor motor, which can be configured according to requirements and actual conditions.

[0034] In one possible implementation, see Figure 7 The system also includes a third transmission component 8 and a fourth transmission component 9 with different transmission ratios. Both the third transmission component 8 and the fourth transmission component 9 are connected to the second motor 3 for transmission.

[0035] The first switching component 4 is used to selectively connect or disconnect the first transmission component 2 from one of the third transmission component 8 and the fourth transmission component 9. That is, the first switching component 4 can connect the first transmission component 2 to the third transmission component 8, connect the first transmission component 2 to the fourth transmission component 9, or disconnect the first transmission component 2 from both the third transmission component 8 and the fourth transmission component 9.

[0036] This hybrid drive system is capable of achieving any one or more of the following seven drive modes: The first driving mode: The first motor 1 drives the wheel 100 to rotate independently through the first transmission assembly 2. The first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 disconnects the transmission connection between the engine 6 and the second motor 3 and the second transmission assembly 5. In this way, a single-motor driving mode is achieved.

[0037] The second driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 disconnects the transmission connection between the engine 6 and the second motor 3 and the second transmission assembly 5. In this way, the first dual-motor driving mode is realized.

[0038] The third driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, so that the second motor 3 can drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 disconnects the transmission connection between the engine 6 and the second motor 3 and the second transmission assembly 5. In this way, the second dual-motor driving mode is realized.

[0039] The fourth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the second motor 3 so that the engine 6 can drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. In this way, the first hybrid driving mode is realized, which can also be called the hybrid series mode.

[0040] The fifth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the second transmission assembly 5, so that the engine 6 can drive the wheel 100 to rotate through the second transmission assembly 5 and the first transmission assembly 2. In this way, the second hybrid driving mode is realized, which can also be called the first hybrid parallel mode.

[0041] The sixth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the second transmission assembly 5, so that the engine 6 can drive the wheel 100 to rotate through the second transmission assembly 5 and the first transmission assembly 2. This achieves the third hybrid driving mode, which can also be called the second hybrid parallel mode.

[0042] The seventh driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, so that the second motor 3 can drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the second transmission assembly 5, so that the engine 6 can drive the wheel 100 to rotate through the second transmission assembly 5 and the first transmission assembly 2. This achieves the fourth hybrid driving mode, which can also be called the third hybrid parallel mode.

[0043] In this way, the diverse power requirements of the vehicle under complex operating conditions are met through the above-mentioned at least seven driving modes.

[0044] In one possible implementation, see Figure 8 The third transmission assembly 8 includes a first gear 81 and a second gear 82. The first gear 81 rotates coaxially with the second motor 3, and the second gear 82 meshes with the first gear 81 and is connected to the first switching assembly 4 in a transmission manner. And / or, The fourth transmission assembly 9 includes a third gear 91 and a fourth gear 92. The third gear 91 rotates coaxially with the second motor 3, and the fourth gear 92 meshes with the third gear 91 and is connected to the first switching assembly 4 in a transmission connection.

[0045] In this embodiment of the disclosure, the transmission ratio of the third transmission component 8 and the transmission ratio of the fourth transmission component 9 can be set to be different to realize a hybrid power drive system with different gears.

[0046] In this embodiment, the third transmission component 8 can be any other reasonable gear set structure besides the structure described above. Similarly, the fourth transmission component 9 can be any other reasonable gear set structure besides the structure described above.

[0047] In one possible implementation, see Figure 9 The second transmission assembly 5 includes a third switching assembly 51, and a fifth transmission assembly 52 and a sixth transmission assembly 53 with different transmission ratios.

[0048] The third switching component 51 is used to connect or disconnect the second switching component 7 from one of the fifth transmission component 52 and the sixth transmission component 53. That is, the third switching component 51 can connect the second switching component 7 to the fifth transmission component 52, connect the second switching component 7 to the sixth transmission component 53, or disconnect the second switching component 7 from both the fifth transmission component 52 and the sixth transmission component 53.

[0049] The fifth transmission assembly 52 and the sixth transmission assembly 53 are both connected to the first transmission assembly 2.

[0050] The second switching component 7 is used to selectively connect or disconnect the engine 6 from one of the second motor 3 and the third switching component 51.

[0051] This hybrid drive system is capable of achieving any one or more of the following ten drive modes: The first driving mode: The first motor 1 drives the wheel 100 to rotate independently through the first transmission assembly 2. The first switching assembly 4 disconnects the transmission assembly 2 from the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 disconnects the engine 6 from the second motor 3 and the third switching assembly 51. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53. In this way, a single-motor driving mode is achieved.

[0052] The second driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from the second motor 3 and the third switching assembly 51. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53. In this way, the first dual-motor driving mode is realized.

[0053] The third driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, so that the second motor 3 can drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 disconnects the transmission connection between the engine 6 and the second motor 3 and the third switching assembly 51. The third switching assembly 51 disconnects the transmission connection between the second switching assembly 7 and the fifth transmission assembly 52 and the sixth transmission assembly 53. In this way, the second dual-motor driving mode is realized.

[0054] The fourth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 disconnects the transmission assembly 2 from the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the second motor 3. The third switching assembly 51 disconnects the transmission assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53, so that the engine 6 can drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. This realizes the first hybrid driving mode, which can also be called a hybrid series mode.

[0055] The fifth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the fifth transmission assembly 52, so that the engine 6 can drive the wheel 100 to rotate through the fifth transmission assembly 52 and the first transmission assembly 2. In this way, the second hybrid driving mode is realized, which can also be called the first hybrid parallel mode.

[0056] The sixth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. At the same time, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the sixth transmission assembly 53, so that the engine 6 can drive the wheel 100 to rotate through the sixth transmission assembly 53 and the first transmission assembly 2. This realizes the third hybrid driving mode, which can also be called the second hybrid parallel mode.

[0057] The seventh driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 with the fifth transmission assembly 52, so that the engine 6 can drive the wheel 100 to rotate through the fifth transmission assembly 52 and the first transmission assembly 2. This achieves the fourth hybrid driving mode, which can also be considered the third hybrid parallel mode.

[0058] The eighth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 with the sixth transmission assembly 53, so that the engine 6 can drive the wheel 100 to rotate through the sixth transmission assembly 53 and the first transmission assembly 2. This achieves the fifth hybrid driving mode, which can also be considered the fourth hybrid parallel mode.

[0059] The ninth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, enabling the second motor 3 to drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 with the fifth transmission assembly 52, enabling the engine 6 to drive the wheel 100 to rotate through the fifth transmission assembly 52 and the first transmission assembly 2. This achieves the sixth hybrid driving mode, which can also be considered the fifth hybrid parallel mode.

[0060] The tenth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, so that the second motor 3 can drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 with the sixth transmission assembly 53, so that the engine 6 can drive the wheel 100 to rotate through the sixth transmission assembly 53 and the first transmission assembly 2. This achieves the seventh hybrid driving mode, which can also be called the sixth hybrid parallel mode.

[0061] The eleventh driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, so that the second motor 3 can drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the second motor 3. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53, so that the engine 6 and the second motor 3 jointly drive the wheel 100 to rotate through the third transmission assembly 8 and the first transmission assembly 2. This achieves the seventh hybrid driving mode, which can also be called the sixth hybrid parallel mode.

[0062] The twelfth driving mode: The first motor 1 drives the wheel 100 to rotate through the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, so that the second motor 3 can drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 with the second motor 3. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53, so that the engine 6 and the second motor 3 jointly drive the wheel 100 to rotate through the fourth transmission assembly 9 and the first transmission assembly 2. This achieves the eighth hybrid driving mode, which can also be called the seventh hybrid parallel mode.

[0063] In this way, the diverse power requirements of the vehicle under complex operating conditions are met through at least twelve drive modes.

[0064] In one possible implementation, see Figure 8 The fifth transmission assembly 52 includes a fifth gear, which is driveably connected to the third switching assembly 51 and also driveably connected to the first transmission assembly 2. And / or, The sixth transmission assembly 53 includes a sixth gear 531 and a seventh gear 532. The sixth gear 531 is connected to the third switching assembly 51, and the seventh gear 532 meshes with the sixth gear and is connected to the first transmission assembly 2.

[0065] In this embodiment of the disclosure, the transmission ratio of the fifth transmission component 52 and the transmission ratio of the sixth transmission component 53 can be set to be different to realize a hybrid drive system with different gears.

[0066] In this embodiment, the fifth transmission component 52 can be any other reasonable gear set structure besides the structure described above. Similarly, the sixth transmission component 53 can be any other reasonable gear set structure besides the structure described above.

[0067] In one possible implementation, see Figure 8 The third switching component 51 includes a first clutch 511 and a second clutch 512.

[0068] The first clutch 511 is used to engage or disengage the fifth transmission assembly 52 from the second switching assembly 7.

[0069] The second clutch 512 is used to engage or disengage the sixth transmission assembly 53 from the second switching assembly 7.

[0070] In one possible implementation, the third switching component 51 is a synchronizer.

[0071] In one possible implementation, see Figure 10 The system also includes a differential 10, which is connected to the first transmission assembly 2 and the wheel 100.

[0072] In this way, the differential 10 enables synchronous or differential rotation between the two wheels in the wheel 100.

[0073] In one possible implementation, see Figure 8The first transmission assembly 2 includes an eighth gear 21, a ninth gear 22, and a tenth gear 23. The eighth gear 21 rotates coaxially with the first motor 1. The ninth gear 22 meshes with the eighth gear 21. The tenth gear 23 rotates coaxially with the ninth gear 22 and is connected to the differential 10 and the first switching assembly 4.

[0074] When the first motor 1 outputs torque, the first motor 1 can sequentially drive the eighth gear 21, the ninth gear 22 and the tenth gear 23 to rotate, thereby driving the wheel 100 to rotate.

[0075] In this embodiment of the disclosure, the first transmission component 2 may be any other reasonable gear set structure in addition to the structure described above.

[0076] Below, on Figure 8 The various driving modes achievable by the hybrid drive system shown are described below: First driving mode: See Figure 11 The first motor 1 drives the wheel 100 to rotate independently via the first transmission assembly 2. The first switching assembly 4 disconnects the transmission assembly 2 from the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 disconnects the engine 6 from the second motor 3 and the third switching assembly 51. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53. In this way, a single-motor drive mode is achieved.

[0077] Second driving mode: See Figure 12 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the third transmission assembly 8, enabling the second motor 3 to drive the wheel 100 to rotate via the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from the second motor 3 and the third switching assembly 51. The third switching assembly 51 also disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53. This achieves the first dual-motor drive mode.

[0078] The third driving mode: see [link] Figure 13 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 with the fourth transmission assembly 9, enabling the second motor 3 to drive the wheel 100 to rotate via the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from the second motor 3 and the third switching assembly 51. The third switching assembly 51 also disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53. This achieves the second dual-motor drive mode.

[0079] Fourth driving mode: See Figure 14 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the first transmission assembly 2 from the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the second motor 3. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53, enabling the engine 6 to drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. This achieves the first hybrid drive mode, which can also be called a hybrid series mode.

[0080] Fifth driving mode: See Figure 15 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the fifth transmission assembly 52, enabling the engine 6 to drive the wheel 100 to rotate via the fifth transmission assembly 52 and the first transmission assembly 2. This achieves the second hybrid drive mode, which can also be considered the first hybrid parallel mode.

[0081] Sixth driving mode: See Figure 16 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the transmission connection between the first transmission assembly 2 and the third transmission assembly 8 and the fourth transmission assembly 9. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the sixth transmission assembly 53, so that the engine 6 can drive the wheel 100 to rotate via the sixth transmission assembly 53 and the first transmission assembly 2. In this way, the third hybrid drive mode is realized, which can also be called the second hybrid parallel mode.

[0082] Seventh driving mode: See Figure 17 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the third transmission assembly 8, enabling the second motor 3 to drive the wheel 100 to rotate via the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the fifth transmission assembly 52, enabling the engine 6 to drive the wheel 100 to rotate via the fifth transmission assembly 52 and the first transmission assembly 2. This achieves a fourth hybrid drive mode, which can also be considered a third hybrid parallel mode.

[0083] Eighth driving mode: See Figure 18 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the third transmission assembly 8, enabling the second motor 3 to drive the wheel 100 to rotate via the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the sixth transmission assembly 53, enabling the engine 6 to drive the wheel 100 to rotate via the sixth transmission assembly 53 and the first transmission assembly 2. This achieves the fifth hybrid drive mode, which can also be considered the fourth hybrid parallel mode.

[0084] Ninth driving mode: See Figure 19 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the fourth transmission assembly 9, enabling the second motor 3 to drive the wheel 100 to rotate via the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the fifth transmission assembly 52, enabling the engine 6 to drive the wheel 100 to rotate via the fifth transmission assembly 52 and the first transmission assembly 2. This achieves the sixth hybrid drive mode, which can also be considered the fifth hybrid parallel mode.

[0085] The tenth driving mode: see Figure 20 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the fourth transmission assembly 9, enabling the second motor 3 to drive the wheel 100 to rotate via the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the third switching assembly 51, and the third switching assembly 51 connects the second switching assembly 7 to the sixth transmission assembly 53, enabling the engine 6 to drive the wheel 100 to rotate via the sixth transmission assembly 53 and the first transmission assembly 2. This achieves the seventh hybrid drive mode, which can also be considered the sixth hybrid parallel mode.

[0086] Eleventh driving mode: See Figure 21The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the third transmission assembly 8, enabling the second motor 3 to drive the wheel 100 to rotate via the third transmission assembly 8 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the second motor 3. The third switching assembly 51 disconnects the second switching assembly 7 from both the fifth transmission assembly 52 and the sixth transmission assembly 53, allowing the engine 6 and the second motor 3 to jointly drive the wheel 100 to rotate via the third transmission assembly 8 and the first transmission assembly 2. This achieves the seventh hybrid drive mode, which can also be considered the sixth hybrid parallel mode.

[0087] The twelfth driving mode: see [link / reference] Figure 22 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the first transmission assembly 2 to the fourth transmission assembly 9, enabling the second motor 3 to drive the wheel 100 to rotate via the fourth transmission assembly 9 and the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the second motor 3. The third switching assembly 51 disconnects the second switching assembly 7 from the fifth transmission assembly 52 and the sixth transmission assembly 53, allowing the engine 6 and the second motor 3 to jointly drive the wheel 100 to rotate via the fourth transmission assembly 9 and the first transmission assembly 2. This achieves the eighth hybrid drive mode, which can also be considered the seventh hybrid parallel mode.

[0088] In this way, the diverse power requirements of the vehicle under complex operating conditions are met through at least twelve drive modes.

[0089] In summary, this disclosure provides a hybrid drive system capable of achieving any one or more of the following at least five drive modes: First driving mode: See Figure 2 The first motor 1 drives the wheel 100 to rotate independently through the first transmission assembly 2. The first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. In this way, a single-motor drive mode is achieved.

[0090] Second driving mode: See Figure 3 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. This achieves a dual-motor drive mode.

[0091] The third driving mode: see [link] Figure 4 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second motor 3, enabling the engine 6 to drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. This achieves the first hybrid drive mode, which can also be called a hybrid series mode.

[0092] Fourth driving mode: See Figure 5 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via the second transmission assembly 5 and the first transmission assembly 2. This achieves the second hybrid drive mode, which can also be considered the first hybrid parallel mode.

[0093] Fifth driving mode: See Figure 6 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via both the second transmission assembly 5 and the first transmission assembly 2. This achieves a third hybrid drive mode, which can also be considered a second hybrid parallel mode.

[0094] In this way, the diverse power requirements of the vehicle under complex operating conditions are met through the above-mentioned at least five driving modes.

[0095] This disclosure also provides a vehicle that includes a hybrid drive system as described in any of the preceding embodiments.

[0096] The technical solution provided in this disclosure includes at least the following beneficial effects: This disclosure provides a hybrid drive system capable of achieving any one or more of at least five drive modes: First driving mode: See Figure 2 The first motor 1 drives the wheel 100 to rotate independently through the first transmission assembly 2. The first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. In this way, a single-motor drive mode is achieved.

[0097] Second driving mode: See Figure 3The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 disconnects the engine 6 from both the second motor 3 and the second transmission assembly 5. This achieves a dual-motor drive mode.

[0098] The third driving mode: see [link] Figure 4 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second motor 3, enabling the engine 6 to drive the second motor 3 to generate electricity, thereby supplying power to the vehicle. This achieves the first hybrid drive mode, which can also be called a hybrid series mode.

[0099] Fourth driving mode: See Figure 5 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 disconnects the second motor 3 from the first transmission assembly 2, and the second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via the second transmission assembly 5 and the first transmission assembly 2. This achieves the second hybrid drive mode, which can also be considered the first hybrid parallel mode.

[0100] Fifth driving mode: See Figure 6 The first motor 1 drives the wheel 100 to rotate via the first transmission assembly 2. Simultaneously, the first switching assembly 4 connects the second motor 3 to the first transmission assembly 2, enabling the second motor 3 to drive the wheel 100 to rotate via the first transmission assembly 2. The second switching assembly 7 connects the engine 6 to the second transmission assembly 5, enabling the engine 6 to drive the wheel 100 to rotate via both the second transmission assembly 5 and the first transmission assembly 2. This achieves a third hybrid drive mode, which can also be considered a second hybrid parallel mode. Thus, at least five drive modes meet the diverse power requirements of the vehicle under complex operating conditions.

[0101] It is understood that the dimensional relationships between gears shown in all the accompanying drawings are only one possible dimensional relationship listed in the embodiments of this disclosure, and the dimensional relationships between the various structures can also be any other reasonable dimensional relationships, which are not specifically limited in the embodiments of this disclosure.

[0102] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0103] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0104] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0105] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0106] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0107] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A hybrid power drive system, characterized in that, The system includes a first motor (1), a first transmission assembly (2), a second motor (3), a first switching assembly (4), a second transmission assembly (5), an engine (6), and a second switching assembly (7); The first transmission assembly (2) is connected to the first motor (1) and the vehicle wheels (100) in a transmission connection; The first switching component (4) is used to selectively connect or disconnect the second motor (3) from the first transmission component (2); The second transmission component (5) is connected to the first transmission component (2) in a transmission connection; The second switching component (7) is used to selectively connect or disconnect the engine (6) from one of the second motor (3) and the second transmission component (5).

2. The hybrid drive system according to claim 1, characterized in that, The system also includes a third transmission component (8) and a fourth transmission component (9) with different transmission ratios, both of which are connected to the second motor (3) in a transmission connection. The first switching component (4) is used to selectively connect or disconnect the first transmission component (2) from one of the third transmission component (8) and the fourth transmission component (9).

3. The hybrid drive system according to claim 2, characterized in that, The third transmission assembly (8) includes a first gear (81) and a second gear (82). The first gear (81) rotates coaxially with the second motor (3), and the second gear (82) meshes with the first gear (81) and is connected to the first switching assembly (4) in a transmission manner; and / or, The fourth transmission component (9) includes a third gear (91) and a fourth gear (92). The third gear (91) rotates coaxially with the second motor (3), and the fourth gear (92) meshes with the third gear (91) and is connected to the first switching component (4) in a transmission connection.

4. The hybrid drive system according to claim 1, characterized in that, The second transmission assembly (5) includes a third switching assembly (51), and a fifth transmission assembly (52) and a sixth transmission assembly (53) with different transmission ratios. The third switching component (51) is used to connect the second switching component (7) to one of the fifth transmission component (52) and the sixth transmission component (53) or disconnect them from each other. The fifth transmission component (52) and the sixth transmission component (53) are both connected to the first transmission component (2) in a transmission connection.

5. The hybrid drive system according to claim 4, characterized in that, The fifth transmission assembly (52) includes a fifth gear, which is drive-connected to the third switching assembly (51) and to the first transmission assembly (2); and / or, The sixth transmission component (53) includes a sixth gear (531) and a seventh gear (532). The sixth gear (531) is connected to the third switching component (51) in a transmission connection. The seventh gear (532) meshes with the sixth gear and is connected to the first transmission component (2) in a transmission connection.

6. The hybrid drive system according to claim 4, characterized in that, The third switching component (51) includes a first clutch (511) and a second clutch (512); The first clutch (511) is used to engage or disengage the fifth transmission assembly (52) from the second switching assembly (7); The second clutch (512) is used to engage or disengage the sixth transmission assembly (53) from the second switching assembly (7).

7. The hybrid drive system according to claim 4, characterized in that, The third switching component (51) is a synchronizer.

8. The hybrid drive system according to claim 1, characterized in that, The system also includes a differential (10), which is connected to the first transmission assembly (2) and the wheel (100) in a transmission connection.

9. The hybrid drive system according to any one of claims 1 to 8, characterized in that, The first transmission assembly (2) includes an eighth gear (21), a ninth gear (22) and a tenth gear (23); The eighth gear (21) rotates coaxially with the first motor (1); The ninth gear (22) meshes with the eighth gear (21); The tenth gear (23) rotates coaxially with the ninth gear (22) and is connected to the differential (10) and the first switching component (4) in a transmission connection.

10. A vehicle, characterized in that, The vehicle includes a hybrid power drive system as described in any one of claims 1 to 9.

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