Hybrid power system and vehicle with same

Abstract

The invention discloses a hybrid power system and a vehicle with the hybrid power system, and the hybrid power system comprises two first wheels which are arranged at an interval left and right; the two first motors are correspondingly connected with the two first wheels respectively, and the first motors are used for driving the corresponding first wheels to rotate; the clutch is connected between the engine and the differential mechanism, and the differential mechanism is in transmission connection with the two first wheels so as to drive the two first wheels to rotate. According to the hybrid power system, distributed driving can be effectively achieved, the two first wheels can be directly driven by the engine, and therefore the fuel efficiency of the hybrid power system is effectively improved, and the endurance mileage of the vehicle is effectively increased.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a hybrid system and a vehicle having the same. Background Art

[0002] With the vigorous development of the new energy vehicle industry, many OEMs have begun to develop distributed drive electric drive assembly vehicles. Each wheel of a distributed drive electric drive assembly vehicle is driven by a separate motor. This method can effectively improve the vehicle's handling performance.

[0003] In the existing technology, the energy forms of distributed drive electric drive assemblies are divided into pure electric and hybrid. Pure electric wheel-side vehicles are only equipped with electric motors and powered by on-board batteries, and the vehicle's range is limited; while hybrid wheel-side motor vehicles are usually extended-range vehicles, that is, they are equipped with electric motors and engines. The engine can replenish energy for the motor, but the engine cannot directly drive the wheels, resulting in higher overall fuel consumption of the vehicle. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a hybrid system that not only effectively implements distributed drive but also enables the engine to directly drive the two first wheels, thereby effectively improving the fuel efficiency of the hybrid system and, in turn, effectively increasing the vehicle's range.

[0005] The present invention also provides a vehicle having the hybrid system.

[0006] According to a first aspect of the present invention, the hybrid system includes: two first wheels, the two first wheels being arranged at intervals on the left and right; two first motors, the two first motors being respectively connected to the two first wheels, the first motors being used to drive the corresponding first wheels to rotate; an engine, a clutch and a differential, the clutch being connected between the engine and the differential, and the differential being respectively connected to the two first wheels to drive the two first wheels to rotate.

[0007] According to the hybrid system of the present invention, by providing two first wheels, two first motors, an engine, a clutch and a differential in the hybrid system, the two first wheels are arranged at intervals on the left and right, the two first motors are respectively connected to the two first wheels, the first motors are used to drive the corresponding first wheels to rotate, the clutch is connected between the engine and the differential, and the differential is respectively connected to the two first wheels to drive the two first wheels to rotate respectively. This not only effectively realizes distributed drive, but also enables the engine to directly drive the two first wheels, thereby effectively improving the fuel efficiency of the hybrid system and further effectively improving the vehicle's cruising range.

[0008] In some embodiments, the hybrid system further includes: a generator and a battery device, wherein the generator is connected between the engine and the battery device, and the two first motors are both connected to the battery device.

[0009] In some embodiments, the hybrid system further includes: a first drive shaft, wherein both ends of the first drive shaft are respectively connected to the engine and the clutch; and a first transmission mechanism, wherein the first drive shaft is connected to the generator via the first transmission mechanism.

[0010] In some embodiments, the first transmission mechanism includes: a first power generation gear, which is sleeved and fixed on the first drive shaft; a second power generation gear, which is coaxially fixed with the motor shaft of the generator, and the first power generation gear is in transmission meshing with the second power generation gear.

[0011] In some embodiments, the hybrid system includes a pure electric mode, a hybrid series mode, and a hybrid parallel mode. In the pure electric mode, the clutch is disconnected, the battery device powers the first motor, and the two first motors respectively drive the two first wheels to rotate; in the hybrid series mode, the engine charges the battery device through the generator, the battery device powers the first motor, and the two first motors respectively drive the two first wheels to rotate; in the hybrid parallel mode, the engine charges the battery device through the generator, and the engine drives the two first wheels to rotate respectively through the clutch and the differential.

[0012] In some embodiments, when the engine drives the first wheel to rotate through the clutch and the differential, the first motor idles; or, the first motor drives the first wheel to rotate; or, the differential drives the first motor to rotate, so that the first motor charges the battery device.

[0013] In some embodiments, the hybrid system further includes: a second transmission mechanism, the second transmission mechanism being connected between the differential, the first motor and the first wheel, and the differential and / or the first motor driving the first wheel to rotate through the second transmission mechanism.

[0014] In some embodiments, the second transmission mechanism includes: a first drive gear, which is coaxially fixed with the output shaft of the differential; a second drive gear, which is coaxially fixed with the motor shaft of the first motor; a first driven gear, wherein the first drive gear and the second drive gear are both engaged with the first driven gear for transmission, and the first driven gear is connected to the first wheel to drive the first wheel to rotate.

[0015] In some embodiments, the second transmission mechanism further includes: a first reduction gear, which is coaxially fixed with the first driven gear; a second reduction gear, which is coaxially fixed with the first wheel, and the first reduction gear and the second reduction gear are meshed for transmission.

[0016] In some embodiments, the hybrid system further includes: a third transmission mechanism connected between the clutch and the differential.

[0017] In some embodiments, the third transmission mechanism includes: a first gear and a second gear meshing with each other, the first gear is transmission-connected to the clutch, and the second gear is transmission-connected to the differential.

[0018] In some embodiments, the third transmission mechanism further includes: a speed change structure, the speed change structure is connected between the clutch and the first gear, the speed change structure includes a plurality of gears, and the plurality of gears are switchably connected to the first gear.

[0019] In some embodiments, the hybrid system further includes: two second wheels, the two second wheels are spaced apart from each other on the left and right sides, and the two second wheels and the two first wheels are spaced apart from each other in the front-to-rear direction; two second motors, the two second motors are respectively connected to the two second wheels, and the second motors are used to drive the corresponding second wheels to rotate.

[0020] A vehicle according to a second aspect of the present invention includes the hybrid system according to the first aspect of the present invention.

[0021] According to the vehicle of the second aspect of the present invention, by providing the hybrid system of the first aspect, not only can distributed drive be effectively realized, but the engine can also directly drive the two first wheels, thereby effectively improving the fuel efficiency of the hybrid system and further effectively improving the vehicle's cruising range.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a hybrid system according to some embodiments of the present application;

[0024] Figure 2 is a schematic diagram of a hybrid system in pure electric mode according to some embodiments of the present application;

[0025] Figure 3is a schematic diagram of a hybrid system in a hybrid series mode according to some embodiments of the present application;

[0026] Figure 4 is a schematic diagram of a hybrid system in hybrid parallel mode according to some embodiments of the present application;

[0027] Figure 5 is a schematic diagram of a hybrid system in a hybrid parallel mode according to some embodiments of the present application, wherein the first motor is idling;

[0028] Figure 6 is a schematic diagram of a hybrid system in a hybrid parallel mode according to some embodiments of the present application, wherein a first motor drives a first wheel to rotate;

[0029] Figure 7 is a schematic diagram of a hybrid system in a hybrid parallel mode according to some embodiments of the present application, wherein the differential drives the first motor to rotate so that the first motor charges the battery device;

[0030] Figure 8 is a schematic diagram of a hybrid system according to some other embodiments of the present application;

[0031] Figure 9 is a schematic diagram of a hybrid system according to some further embodiments of the present application.

[0032] Reference numerals:

[0033] 100. Hybrid system;

[0034] 1. First wheel;

[0035] 2. First motor;

[0036] 3. Engine;

[0037] 4. Clutch;

[0038] 5. Differential;

[0039] 6. Generator;

[0040] 7. Battery device;

[0041] 8. First drive shaft;

[0042] 9. First transmission mechanism; 91. First power generation gear; 92. Second power generation gear;

[0043] 101, first driving gear; 102, second driving gear; 103, first driven gear; 104, first reduction gear; 105, second reduction gear;

[0044] 11. Third transmission mechanism; 111. First gear; 112. Second gear; 113. Speed ​​change mechanism; 1131. Shift gear;

[0045] 12. Second wheel;

[0046] 13. Second motor. DETAILED DESCRIPTION

[0047] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0048] Reference below Figures 1-9 A hybrid system 100 according to an embodiment of a first aspect of the present invention will be described.

[0049] like Figure 1 As shown, the hybrid system 100 according to the first embodiment of the present invention includes: two first wheels 1, two first motors 2, an engine 3, a clutch 4 and a differential 5.

[0050] The two first wheels 1 are arranged at intervals on the left and right; the two first motors 2 are respectively connected to the two first wheels 1, and the first motors 2 are used to drive the corresponding first wheels 1 to rotate; the clutch 4 is connected between the engine 3 and the differential 5, and the differential 5 is respectively connected to the two first wheels 1 to drive the two first wheels 1 to rotate.

[0051] It should be noted that a transmission connection refers to the connection of two or more components through some assembly method to achieve force or power transmission. A transmission connection effectively transfers force or power from one component to another, enabling the entire system to function properly. The two components of a transmission connection can be connected directly or indirectly, as long as the force transmission is achieved.

[0052] In some specific examples, such as Figure 1 As shown, the two first wheels 1 are arranged at intervals in the left-right direction, and the two first motors 2 are arranged at intervals in the left-right direction and are respectively connected to the two first wheels 1. That is to say, each first motor 2 can independently drive the corresponding first wheel 1 to rotate, thereby realizing distributed electric drive of the two first wheels 1.

[0053] In some specific examples, such as Figure 1As shown, the clutch 4 is disposed between the engine 3 and the differential 5. One end of the clutch 4 is connected to the engine 3, and the other end of the clutch 4 is connected to the differential 5. The two first wheels 1 are connected via the differential 5. When the clutch 4 is engaged, the engine 3 can transmit power to the two first wheels 1 through the clutch 4 and the differential 5. In other words, when the clutch 4 is engaged, the engine 3 can directly drive the two first wheels 1 to rotate, thereby realizing mechanical drive of the two first wheels 1 by the engine 3.

[0054] In this embodiment, when the clutch 4 of the hybrid system 100 is engaged, the combination of distributed electric drive of the two first motors 2 and mechanical drive of the engine 3 can be realized. In the prior art, hybrid wheel-side motor vehicles are usually extended-range type, that is, equipped with an electric motor and an engine 3. The engine 3 can replenish energy for the motor, but the engine 3 cannot directly drive the wheels, resulting in higher overall fuel consumption of the vehicle. Therefore, the hybrid system 100 of the present application can not only realize distributed drive, but also effectively reduce the energy loss in the conversion process by directly driving the two first wheels 1 through the engine 3, thereby comprehensively utilizing the advantages of high efficiency of the first motor 2 and low fuel consumption of direct drive of the engine 3 to extend the vehicle's endurance.

[0055] According to the hybrid system 100 of the embodiment of the present invention, two first wheels 1, two first motors 2, an engine 3, a clutch 4 and a differential 5 are provided in the hybrid system 100. The two first wheels 1 are arranged with an interval between the left and right sides. The two first motors 2 are respectively connected to the two first wheels 1. The first motors 2 are used to drive the corresponding first wheels 1 to rotate. The clutch 4 is connected between the engine 3 and the differential 5. The differential 5 is respectively connected to the two first wheels 1 to drive the two first wheels 1 to rotate. This not only effectively realizes distributed drive, but also enables the engine 3 to directly drive the two first wheels 1, thereby effectively improving the fuel efficiency of the hybrid system 100 and further effectively improving the vehicle's cruising range.

[0056] In one embodiment of the present invention, Figure 1 As shown, the hybrid system 100 further includes: a generator 6 and a battery device 7 . The generator 6 is connected between the engine 3 and the battery device 7 , and both first motors 2 are connected to the battery device 7 .

[0057] In some specific examples, such as Figure 1 As shown, the generator 6 is connected between the engine 3 and the battery device 7. When the engine 3 is working, the engine 3 can drive the generator 6 to generate electricity, convert mechanical energy into electrical energy, and store the electrical energy in the battery device 7. The battery device 7 can provide electrical energy to the two first motors 2 to drive the two first wheels 1 to rotate.

[0058] Furthermore, a rectifier is provided between the generator 6 and the battery device 7. The rectifier is a device that converts the alternating current generated by the generator 6 into direct current. The rectifier converts the alternating current generated by the generator 6 into direct current, supplies it to the load after filtering, or inputs it into the battery device 7 to provide a charging voltage to the battery device 7, thereby acting as a charger.

[0059] In this embodiment, a generator 6 and a battery device 7 are provided in the hybrid system 100. The generator 6 is connected between the engine 3 and the battery device 7. Both first motors 2 are connected to the battery device 7. The mechanical energy of the engine 3 can be converted into electrical energy and stored in the battery device 7, thereby charging the battery device 7.

[0060] In one embodiment of the present invention, Figure 1 As shown, the hybrid system 100 further includes a first drive shaft 8 and a first transmission mechanism 9. The first drive shaft 8 is connected to the engine 3 and the clutch 4 at both ends respectively; the first drive shaft 8 is connected to the generator 6 through the first transmission mechanism 9.

[0061] In some specific examples, such as Figure 1 As shown, the first drive shaft 8 is extended in the left and right directions, the left end of the first drive shaft 8 is connected to the engine 3, the right end of the first drive shaft 8 is connected to the clutch 4, one end of the first transmission mechanism 9 is connected to the first drive shaft 8, and the other end of the first transmission mechanism 9 is connected to the generator 6. That is to say, part of the power output by the engine 3 can be transmitted to the clutch 4 through the first drive shaft 8, and the other part can be transmitted to the generator 6 through the first transmission mechanism 9 to generate electricity.

[0062] In this embodiment, a first drive shaft 8 and a first transmission mechanism 9 are provided in the hybrid system 100. The two ends of the first drive shaft 8 are respectively connected to the engine 3 and the clutch 4. The first drive shaft 8 is connected to the generator 6 through the first transmission mechanism 9. The power output of the engine 3 can be diverted to the generator 6 and the clutch 4, thereby taking into account both the power generation requirements of the generator 6 and the driving requirements of the engine 3.

[0063] In one embodiment of the present invention, Figure 1 As shown, the first transmission mechanism 9 includes: a first power generation gear 91 and a second power generation gear 92. The first power generation gear 91 is sleeved and fixed to the first drive shaft 8; the second power generation gear 92 is coaxially fixed to the motor shaft of the generator 6, and the first power generation gear 91 and the second power generation gear 92 are in driving engagement.

[0064] In some specific examples, the first power generation gear 91 is sleeved and fixed on the first drive shaft 8 and is located between the engine 3 and the clutch 4. The motor shaft of the generator 6 extends in the left-right direction. The second power generation gear 92 is fixed to the left end of the motor shaft of the generator 6 and is in driving engagement with the first power generation gear 91. When the engine 3 is operating, the engine 3 can drive the first power generation gear 91 to rotate, the first power generation gear 91 can drive the second power generation gear 92 to rotate, and the second power generation gear 92 can drive the motor shaft of the generator 6 to rotate to generate electricity.

[0065] In this embodiment, a first power generation gear 91 and a second power generation gear 92 are provided in the first transmission mechanism 9. The first power generation gear 91 is sleeved on and fixed to the first drive shaft 8, and the second power generation gear 92 is coaxially fixed to the motor shaft of the generator 6. The first power generation gear 91 and the second power generation gear 92 are in transmission engagement, which can effectively optimize the structural structure of the first transmission mechanism 9, thereby effectively improving the compactness of the hybrid system 100.

[0066] In one embodiment of the present invention, Figure 2-Figure 4 As shown, the hybrid system 100 includes a pure electric mode, a hybrid series mode and a hybrid parallel mode. In the pure electric mode, the clutch 4 is disconnected, the battery device 7 supplies power to the first motor 2, and the two first motors 2 respectively drive the two first wheels 1 to rotate; in the hybrid series mode, the engine 3 charges the battery device 7 through the generator 6, the battery device 7 supplies power to the first motor 2, and the two first motors 2 respectively drive the two first wheels 1 to rotate; in the hybrid parallel mode, the engine 3 charges the battery device 7 through the generator 6, and the engine 3 drives the two first wheels 1 to rotate respectively through the clutch 4 and the differential 5.

[0067] In some specific examples, such as Figure 2 As shown, in pure electric mode, the hybrid system 100 has clutch 4 disengaged, the engine 3 is inoperative, and the battery device 7 supplies power to the two first motors 2, which in turn drive the two first wheels 1, thereby achieving distributed electric drive. The pure electric mode of the hybrid system 100 can be used for vehicle starting and low-speed driving, achieving zero emissions and reducing noise.

[0068] For example Figure 3 As shown, in hybrid series mode, clutch 4 is disengaged and engine 3 is operating. Engine 3 drives first generator gear 91, which in turn drives second generator gear 92. Second generator gear 92 drives the motor shaft of generator 6 to generate electricity, which is then stored in battery device 7. Battery device 7 powers two first motors 2, which in turn drive two first wheels 1, respectively, thereby achieving distributed electric drive. Hybrid series mode of hybrid system 100 is suitable for situations where the battery device 7 is low on charge.

[0069] For example Figure 4 As shown, in hybrid parallel mode, clutch 4 is engaged. A portion of the power output by engine 3 is transmitted via first transmission mechanism 9 to generator 6 for generation, which is then stored in battery device 7. The remaining power is transmitted via clutch 4 and differential 5 to the two first wheels 1, respectively, thereby driving the two first wheels 1. This direct drive of the two first wheels 1 by engine 3 is achieved. The hybrid parallel mode of hybrid system 100 provides powerful power to the two first wheels 1, making it suitable for vehicle acceleration or climbing, while also improving fuel economy.

[0070] This embodiment configures the hybrid system 100 to include a pure electric mode, a hybrid series mode, and a hybrid parallel mode. In the pure electric mode, the clutch 4 is disconnected, the battery device 7 supplies power to the first motor 2, and the two first motors 2 respectively drive the two first wheels 1 to rotate. In the hybrid series mode, the engine 3 charges the battery device 7 via the generator 6, the battery device 7 supplies power to the first motor 2, and the two first motors 2 respectively drive the two first wheels 1 to rotate. In the hybrid parallel mode, the engine 3 charges the battery device 7 via the generator 6, and the engine 3 respectively drives the two first wheels 1 to rotate via the clutch 4 and the differential 5. This embodiment can meet various needs, thereby effectively improving the flexibility and applicability of the hybrid system 100.

[0071] In one embodiment of the present invention, Figure 5-Figure 7 As shown, when the engine 3 drives the first wheel 1 to rotate through the clutch 4 and the differential 5, the first motor 2 idles; or, the first motor 2 drives the first wheel 1 to rotate; or, the differential 5 drives the first motor 2 to rotate, so that the first motor 2 charges the battery device 7.

[0072] For example Figure 5 As shown, when the engine 3 drives the first wheel 1 to rotate through the clutch 4 and the differential 5, the first motor 2 is idling; Figure 6 As shown, when the engine 3 drives the first wheel 1 to rotate through the clutch 4 and the differential 5, the first motor 2 drives the first wheel 1 to rotate; Figure 7 As shown, when the engine 3 drives the first wheel 1 to rotate through the clutch 4 and the differential 5 , the differential 5 drives the first motor 2 to rotate, so that the first motor 2 charges the battery device 7 .

[0073] In other words, both first motors 2 are bidirectional motors. When hybrid system 100 is operating, the operating states of the two first motors 2 can be flexibly controlled based on the relationship between the output power of engine 3 and the power requirements of the vehicle. To reduce drag and lower the energy consumption of hybrid system 100, first motors 2 can be controlled to idle. To increase power to first wheel 1, first motors 2 can be controlled to rotate first wheel 1, providing power assistance. To recover energy, first motors 2 can be controlled to generate electricity, thereby charging battery device 7.

[0074] Furthermore, the hybrid system 100 also includes: a direct drive mode. In the direct drive mode, the engine 3 drives the two first wheels 1 to rotate respectively through the clutch 4 and the differential 5. That is, the two first wheels 1 are only driven by the engine 3, thereby further reducing energy loss and further improving fuel efficiency.

[0075] In this embodiment, when the engine 3 drives the first wheel 1 to rotate through the clutch 4 and the differential 5, the first motor 2 is set to idle, or the first motor 2 drives the first wheel 1 to rotate, or the differential 5 drives the first motor 2 to rotate, so that the first motor 2 charges the battery device 7. By switching the state of the first motor 2, the diversified functions of the hybrid system 100 can be realized, thereby effectively improving the energy utilization efficiency and driving experience of the entire vehicle.

[0076] In one embodiment of the present invention, Figure 1 As shown, the hybrid system 100 further includes: a second transmission mechanism, which is connected between the differential 5, the first motor 2 and the first wheel 1, and the differential 5 and / or the first motor 2 drives the first wheel 1 to rotate through the second transmission mechanism.

[0077] In some specific examples, such as Figure 1 As shown, the first end of the second transmission mechanism is connected to the differential 5, the second end of the second transmission mechanism is connected to the first motor 2, and the third end of the second transmission mechanism is connected to the first wheel 1. For example, the differential 5 drives the first wheel 1 through the second transmission mechanism; in another example, the first motor 2 drives the first wheel 1 through the second transmission mechanism; in another example, the differential 5 and the first motor 2 jointly drive the first wheel 1 through the second transmission mechanism. This effectively achieves a flexible parallel hybrid output mode.

[0078] In this embodiment, a second transmission mechanism is provided in the hybrid system 100. The second transmission mechanism is connected between the differential 5, the first motor 2 and the first wheel 1. The differential 5 and / or the first motor 2 drives the first wheel 1 to rotate through the second transmission mechanism, so that the engine 3 and the first motor 2 can drive the two first wheels 1 jointly or separately, thereby realizing more intelligent integrated control of distributed electric drive and mechanical drive.

[0079] In one embodiment of the present invention, Figure 1 As shown, the second transmission mechanism includes: a first drive gear 101, a second drive gear 102, and a first driven gear 103. The first drive gear 101 is coaxially fixed to the output shaft of the differential 5; the second drive gear 102 is coaxially fixed to the motor shaft of the first motor 2; the first drive gear 101 and the second drive gear 102 are both meshed with the first driven gear 103, and the first driven gear 103 is connected to the first wheel 1 to drive the first wheel 1 to rotate.

[0080] In some specific examples, such as Figure 1 As shown, the first drive gear 101 is coaxially fixed to one end of the output shaft of the differential 5, the second drive gear 102 is coaxially fixed to one end of the motor shaft of the first motor 2, and the first driven gear 103 is arranged between the first drive gear 101 and the second drive gear 102 and is respectively meshed with the first drive gear 101 and the second drive gear 102 for transmission. Further, the first driven gear 103 is connected to the first gear 111 for transmission.

[0081] When clutch 4 of hybrid system 100 is engaged, engine 3 transmits power to first drive gear 101 through clutch 4 and differential 5. First drive gear 101 drives first driven gear 103 to rotate, which in turn drives first wheel 1 to rotate. When first motor 2 is idling, first driven gear 103 drives second drive gear 102 to rotate, which in turn drives first motor 2 to idle. When first motor 2 is charging battery device 7, first driven gear 103 drives second drive gear 102 to rotate, which in turn drives first motor 2 to generate electricity, thereby charging battery device 7. When first motor 2 is driving first wheel 1 to rotate, first motor 2 drives second drive gear 102 via the motor shaft, which in turn drives first driven gear 103 to rotate, which in turn drives first wheel 1 to rotate. In other words, engine 3 and first motor 2 can now jointly drive first wheel 1 to rotate.

[0082] In this embodiment, a first drive gear 101, a second drive gear 102, and a first driven gear 103 are provided in the second transmission mechanism. The first drive gear 101 is coaxially fixed with the output shaft of the differential 5, and the second drive gear 102 is coaxially fixed with the motor shaft of the first motor 2. The first drive gear 101 and the second drive gear 102 are both meshed with the first driven gear 103, and the first driven gear 103 is connected to the first wheel 1 to drive the first wheel 1 to rotate. This effectively optimizes the structural structure of the second transmission mechanism, saves installation space, and effectively improves the compactness of the hybrid system 100.

[0083] In one embodiment of the present invention, Figure 1 As shown, the second transmission mechanism further includes: a first reduction gear 104 and a second reduction gear 105. The first reduction gear 104 is coaxially fixed to the first driven gear 103; the second reduction gear 105 is coaxially fixed to the first wheel 1, and the first reduction gear 104 and the second reduction gear 105 are meshed for transmission.

[0084] In some specific examples, such as Figure 1 As shown, the first reduction gear 104 is coaxially fixed with the first driven gear 103 , the second reduction gear 105 is arranged at the rear side of the first reduction gear 104 and meshes with the first reduction gear 104 for transmission, and further, the second reduction gear 105 is coaxially fixed with the first wheel 1 .

[0085] When power is transmitted to the first reduction gear 104, the first reduction gear 104 can drive the second reduction gear 105 to rotate, and the second reduction gear 105 can drive the first wheel 1 to rotate. Therefore, through the meshing transmission between the first reduction gear 104 and the second reduction gear 105, the effect of reducing the speed and increasing the torque can be achieved, thereby effectively matching the output characteristics of the first wheel 1 and meeting the driving force requirements under different working conditions.

[0086] In this embodiment, a first reduction gear 104 and a second reduction gear 105 are provided in the second transmission mechanism. The first reduction gear 104 is coaxially fixed to the first driven gear 103, and the second reduction gear 105 is coaxially fixed to the first wheel 1. The first reduction gear 104 and the second reduction gear 105 are meshed and transmitted, which can effectively achieve the effect of reducing speed and increasing torque for the first wheel 1, thereby effectively improving the power adaptability and energy utilization efficiency of the hybrid system 100.

[0087] In one embodiment of the present invention, Figure 1 As shown, the hybrid system 100 further includes: a third transmission mechanism 11 , which is connected between the clutch 4 and the differential 5 .

[0088] In some specific examples, such as Figure 1 As shown, one end of the third transmission mechanism 11 is connected to the clutch 4, and the other end is connected to the differential 5. The engine 3 can transmit power to the third transmission mechanism 11 and the differential 5 in sequence through the clutch 4, and the differential 5 can output the power to the first wheel 1. By providing the third transmission mechanism 11 between the clutch 4 and the differential 5, power can be efficiently and smoothly transmitted from the clutch 4 to the differential 5, thereby effectively improving the reliability of power transmission.

[0089] In this embodiment, a third transmission mechanism 11 is provided in the hybrid system 100. The third transmission mechanism 11 is connected between the clutch 4 and the differential 5. This enables power to be efficiently and smoothly transmitted from the clutch 4 to the differential 5, thereby effectively improving the reliability and stability of power transmission.

[0090] In one embodiment of the present invention, Figure 1 As shown, the third transmission mechanism 11 includes a first gear 111 and a second gear 112 that mesh with each other. The first gear 111 is in transmission connection with the clutch 4 , and the second gear 112 is in transmission connection with the differential 5 .

[0091] In some specific examples, such as Figure 1 As shown, the first gear 111 is arranged on the right side of the clutch 4 and is in transmission connection with the clutch 4. The second gear 112 is arranged on the lower side of the first gear 111 and meshes with the first gear 111. Furthermore, the second gear 112 is mounted on and fixed to the housing of the differential 5. In other words, the second gear 112 can rotate together with the housing of the differential 5. When the engine 3 outputs power, the clutch 4 is engaged and can transmit the power output of the engine 3 to the first gear 111, the second gear 112, and the differential 5 in sequence.

[0092] In this embodiment, by providing a first gear 111 and a second gear 112 that mesh with each other in the third transmission mechanism 11, the first gear 111 is transmission-connected to the clutch 4, and the second gear 112 is transmission-connected to the differential 5, the structural layout of the third transmission mechanism 11 can be effectively optimized, installation space can be saved, and space utilization can be effectively improved.

[0093] In one embodiment of the present invention, Figure 8 As shown, the third transmission mechanism 11 also includes: a speed change structure 113, which is connected between the clutch 4 and the first gear 111, and the speed change structure 113 includes a plurality of gears 1131, and the plurality of gears 1131 are switchably connected to the first gear 111.

[0094] In other specific examples, such as Figure 8 As shown, one end of the speed change structure 113 is connected to the clutch 4, and the other end of the speed change structure 113 is connected to the first gear 111. The clutch 4 can transmit power to the first gear 111 via the speed change structure 113. For example, the number of gears 1131 in the speed change structure 113 can be two, three, four, five, or more than six, and the multiple gears 1131 can be switchably connected to the first gear 111.

[0095] In other specific examples, such as Figure 8As shown, there are two gear gears 1131 in the speed change structure 113. The user can select different combinations of gear gears 1131 according to actual working conditions, so as to achieve different speed ratios and torque amplification effects, thereby realizing the speed change function during the power transmission process of the engine 3.

[0096] In this embodiment, a speed change structure 113 is provided in the third transmission mechanism 11. The speed change structure 113 is connected between the clutch 4 and the first gear 111. The speed change structure 113 includes a plurality of gear gears 1131, and the plurality of gear gears 1131 are switchably connected to the first gear 111, so that the user can select different gears according to actual needs, thereby effectively improving the adaptability and fuel economy of the engine 3 under different driving conditions.

[0097] In one embodiment of the present invention, Figure 9 As shown, the hybrid system 100 also includes: two second wheels 12, the two second wheels 12 are arranged at intervals on the left and right, and the two second wheels 12 and the two first wheels 1 are arranged at intervals in the front-to-rear direction; two second motors 13, the two second motors 13 are respectively connected to the two second wheels 12, and the second motors 13 are used to drive the corresponding second wheels 12 to rotate.

[0098] For example, the first wheel 1 is a front wheel and the second wheel 12 is a rear wheel; in another example, the second wheel 12 is a front wheel and the first wheel 1 is a rear wheel. Figure 9 As shown, the first wheel 1 is a front wheel, the second wheel 12 is a rear wheel, and the two second wheels 12 are arranged on the rear side of the two first wheels 1 .

[0099] The two first motors 2 in the hybrid system 100 can respectively drive the two first wheels 1 to rotate, and the two second motors 13 can respectively drive the two second wheels 12 to rotate. In other words, the hybrid system 100 can individually control the power output of each wheel, thereby effectively improving the power performance and flexibility of the hybrid system 100.

[0100] The vehicle according to the second embodiment of the present invention includes the hybrid system 100 according to the first embodiment of the present invention.

[0101] According to the vehicle of the embodiment of the present invention, by providing the hybrid system 100 of the first aspect described above, not only can distributed drive be effectively realized, but the engine 3 can also directly drive the two first wheels 1, thereby effectively improving the fuel efficiency of the hybrid system 100 and further effectively improving the vehicle's cruising range.

[0102] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0103] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0104] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0105] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0106] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A hybrid system (100), characterized in that: include: Two first wheels (1), the two first wheels (1) being arranged at intervals on the left and right; Two first motors (2), the two first motors (2) being respectively connected to the two first wheels (1), and the first motors (2) being used to drive the corresponding first wheels (1) to rotate; An engine (3), a clutch (4) and a differential (5), wherein the clutch (4) is connected between the engine (3) and the differential (5), and the differential (5) is respectively connected to the two first wheels (1) in a transmission manner to drive the two first wheels (1) to rotate.

2. The hybrid system (100) according to claim 1, characterized in that Also includes: A generator (6) and a battery device (7), wherein the generator (6) is connected between the engine (3) and the battery device (7), and the two first motors (2) are both connected to the battery device (7).

3. The hybrid system (100) according to claim 2, characterized in that: The hybrid system (100) further includes: a first drive shaft (8), wherein both ends of the first drive shaft (8) are respectively connected to the engine (3) and the clutch (4); A first transmission mechanism (9), wherein the first drive shaft (8) is connected to the generator (6) via the first transmission mechanism (9).

4. The hybrid system (100) according to claim 3, characterized in that The first transmission mechanism (9) comprises: a first power generation gear (91), the first power generation gear (91) being sleeved on and fixed to the first drive shaft (8); The second power generation gear (92) is coaxially fixed with the motor shaft of the generator (6), and the first power generation gear (91) is in driving engagement with the second power generation gear (92).

5. The hybrid system (100) according to claim 2, characterized in that: The hybrid system (100) includes a pure electric mode, a hybrid series mode and a hybrid parallel mode. In the pure electric mode, the clutch (4) is disconnected, the battery device (7) supplies power to the first motor (2), and the two first motors (2) respectively drive the two first wheels (1) to rotate; In the hybrid series mode, the engine (3) charges the battery device (7) through the generator (6), the battery device (7) supplies power to the first motor (2), and the two first motors (2) respectively drive the two first wheels (1) to rotate; In the hybrid parallel mode, the engine (3) charges the battery device (7) through the generator (6), and the engine (3) drives the two first wheels (1) to rotate respectively through the clutch (4) and the differential (5).

6. The hybrid system (100) according to claim 2 or 5, characterized in that: When the engine (3) drives the first wheel (1) to rotate through the clutch (4) and the differential (5), The first motor (2) is idling; or, the first motor (2) drives the first wheel (1) to rotate; or, the differential (5) drives the first motor (2) to rotate, so that the first motor (2) charges the battery device (7).

7. The hybrid system (100) according to claim 1, characterized in that The hybrid system (100) further includes: a second transmission mechanism, wherein the second transmission mechanism is connected between the differential (5), the first motor (2) and the first wheel (1), and the differential (5) and / or the first motor (2) drives the first wheel (1) to rotate through the second transmission mechanism.

8. The hybrid system (100) according to claim 7, characterized in that: The second transmission mechanism includes: a first driving gear (101), the first driving gear (101) being coaxially fixed to an output shaft of the differential (5); a second driving gear (102), the second driving gear (102) being coaxially fixed to the motor shaft of the first motor (2); A first driven gear (103), the first driving gear (101) and the second driving gear (102) are both meshed with the first driven gear (103) for transmission, and the first driven gear (103) is connected to the first wheel (1) to drive the first wheel (1) to rotate.

9. The hybrid system (100) according to claim 8, characterized in that: The second transmission mechanism further includes: a first reduction gear (104), wherein the first reduction gear (104) is coaxially fixed with the first driven gear (103); The second reduction gear (105) is coaxially fixed with the first wheel (1), and the first reduction gear (104) and the second reduction gear (105) are meshed and transmitted.

10. The hybrid system (100) according to claim 1, characterized in that The hybrid system (100) further includes a third transmission mechanism (11), wherein the third transmission mechanism (11) is connected between the clutch (4) and the differential (5).

11. The hybrid system (100) according to claim 10, characterized in that: The third transmission mechanism (11) comprises a first gear (111) and a second gear (112) meshing with each other, the first gear (111) being transmission-connected to the clutch (4), and the second gear (112) being transmission-connected to the differential (5).

12. The hybrid system (100) according to claim 11, characterized in that The third transmission mechanism (11) further comprises a speed change structure (113), wherein the speed change structure (113) is connected between the clutch (4) and the first gear (111), and the speed change structure (113) comprises a plurality of gears (1131), and the plurality of gears (1131) are switchably connected to the first gear (111).

13. The hybrid system (100) according to claim 1, characterized in that Also includes: Two second wheels (12), the two second wheels (12) are arranged at intervals in the left and right directions, and the two second wheels (12) and the two first wheels (1) are arranged at intervals in the front-rear direction; Two second motors (13), the two second motors (13) are respectively connected to the two second wheels (12), and the second motors (13) are used to drive the corresponding second wheels (12) to rotate.

14. A vehicle, characterized in that: The invention comprises a hybrid system (100) according to any one of claims 1 to 13.

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