Hybrid power system and vehicle with same

Abstract

The utility model discloses a hybrid power system and a vehicle with the same, the hybrid power system comprises an engine, a transmission device, a generator and a driving motor, and the transmission device comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism; the generator is in power connection with the first wheel through the second transmission mechanism and is in power connection with the engine through the first transmission mechanism and the second transmission mechanism; the driving motor is in power connection with the second wheel through a third transmission mechanism; when the hybrid power system is in a dual-motor driving mode, the generator is disconnected with the engine through the first transmission mechanism and drives the first wheel through the second transmission mechanism, and the driving motor drives the second wheel through the third transmission mechanism. According to the hybrid power system, sufficient torque is accurately provided for the first wheel and the second wheel through the generator and the driving motor, it is guaranteed that the vehicle has good power performance under various working conditions, and the vehicle can run more stably and smoothly.

Description

TECHNICAL FIELD

[0001] The utility model relates to hybrid power system technical field of vehicle especially, it is a kind of hybrid power system and vehicle with it. BACKGROUND

[0002] With the development of economy, new energy vehicles account for a larger and larger share in the market, and hybrid technology has become a hot spot for research by various vehicle manufacturers. At the same time, the left and right wheels of a vehicle are usually powered by the same power source, which cannot accurately allocate different torques to the left and right wheels, resulting in poor flexibility of the vehicle. Therefore, how to use different power sources to increase the flexibility of wheel power distribution is a technical problem that needs to be solved at present. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. To this end, one purpose of the utility model is to provide a hybrid power system, which can accurately provide sufficient torque to the first wheel and the second wheel through the generator and the drive motor, to ensure that the vehicle has good power performance under various working conditions, so that the vehicle runs more smoothly and smoothly.

[0004] Another purpose of the utility model is to provide a vehicle comprising the above hybrid power system.

[0005] According to the hybrid power system of the first aspect of the utility model, the hybrid power system comprises: an engine; a transmission device, the transmission device comprising a first transmission mechanism, a second transmission mechanism and a third transmission mechanism; a generator, the generator being adapted to be power-connected with the first wheel through the second transmission mechanism, and the generator being power-connected with the engine through the first transmission mechanism and the second transmission mechanism; a drive motor, the drive motor being adapted to be power-connected with the second wheel through the third transmission mechanism, wherein the first wheel and the second wheel are located on both sides of the running direction of the vehicle; when the hybrid power system is in a dual-motor driving mode, the generator is disconnected with the engine through the first transmission mechanism, the generator is adapted to drive the first wheel through the second transmission mechanism, and the drive motor is adapted to drive the second wheel through the third transmission mechanism.

[0006] According to the hybrid power system of the utility model embodiment, when the hybrid power system is in a dual-motor driving mode, the generator drives the first wheel through the second transmission mechanism, and the drive motor drives the second wheel through the third transmission mechanism. Thus, the generator and the drive motor can accurately provide sufficient torque to the first wheel and the second wheel, to ensure that the vehicle has good power performance under various working conditions, so that the vehicle runs more smoothly and smoothly.

[0007] According to some embodiments of the present invention, the transmission device further includes: a power input shaft connected to the engine; a front drive half-shaft, the front drive half-shaft including a first sub-half-shaft and a second sub-half-shaft, the first sub-half-shaft being adapted to be connected to the first wheel, and the second sub-half-shaft being adapted to be connected to the second wheel; a differential, the differential being disposed between the first sub-half-shaft and the second sub-half-shaft; when the hybrid power system is in the dual-motor drive mode, the generator is poweredly connected to the first wheel through the second transmission mechanism, and the drive motor is poweredly connected to the second sub-half-shaft through the third transmission mechanism.

[0008] According to some embodiments of the present invention, the transmission device further includes: a first coupling device, which is disposed between the engine and the differential. When the first coupling device is in a coupled state, the power of the engine is transmitted to the differential via the power input shaft, the first coupling device and the first transmission mechanism.

[0009] According to some embodiments of the present invention, the first transmission mechanism includes a third main transmission wheel and a third driven transmission wheel that are poweredly connected. The third main transmission wheel is disposed on the power input shaft, and the third driven transmission wheel is poweredly connected to the differential.

[0010] According to some embodiments of the present invention, a second coupling device is provided between the first sub-half shaft and the second sub-half shaft, and the first sub-half shaft and the second sub-half shaft are connected when the second coupling device is in a coupled state; wherein, at least one of the first sub-half shaft and the second sub-half shaft is provided with a torque vector manager, and the torque vector manager is located between at least one of the first wheel and the second wheel and the second coupling device.

[0011] According to some embodiments of the present invention, the differential includes a planetary mechanism, which includes a sun gear and planet gears. The sun gear is disposed on the first slave half-shaft, and the second coupling device is located between the sun gear and the second slave half-shaft. The planet gears mesh with the sun gear and the third slave drive gear, respectively.

[0012] According to some embodiments of the present invention, the second transmission mechanism includes: a second clutch, which is disposed on the output shaft of the generator, and the second clutch includes a third engagement state and a fourth engagement state; a first gear assembly, in which the generator is poweredly connected to the power input shaft through the first gear assembly when the second clutch is in the third engagement state; and a second gear assembly, in which the generator is poweredly connected to the front drive half shaft through the second gear assembly when the second clutch is in the fourth engagement state.

[0013] According to some embodiments of the present application, the second gear assembly comprises a second driving wheel, a fourth intermediate wheel, a fifth intermediate wheel and a second driven wheel, the second driving wheel is sleeved on the output shaft of the generator and engaged with the fourth intermediate wheel, the fourth intermediate wheel is connected with the fifth intermediate wheel, and the second driven wheel is arranged on the first half axle and engaged with the fifth intermediate wheel.

[0014] According to some embodiments of the present application, the third transmission mechanism comprises a third clutch, the third clutch is arranged on the output shaft of the driving motor, the third clutch comprises a fifth engagement state and a sixth engagement state, when the third clutch is in the fifth engagement state, the third clutch is in power connection with the third driven gear, and when the third clutch is in the sixth engagement state, the driving motor is in power connection with the second half axle through the third gear assembly.

[0015] According to some embodiments of the present application, the third gear assembly comprises a third driving wheel, a sixth intermediate wheel, a seventh intermediate wheel and a third driven wheel, the third driving wheel is sleeved on the output shaft of the driving motor and engaged with the sixth intermediate wheel, the sixth intermediate wheel is connected with the seventh intermediate wheel, and the third driven wheel is arranged on the front driving half axle and engaged with the seventh intermediate wheel.

[0016] According to some embodiments of the present application, the third driving gear is engaged with the third driven gear, the first coupling device is arranged on the power input shaft, and the first coupling device is located between the engine and the third driving gear.

[0017] According to some embodiments of the present application, the first gear assembly comprises a first driving wheel and a first driven wheel engaged with each other, the first driving wheel is arranged on the power input shaft, the first driven wheel is sleeved on the output shaft of the generator, and the second clutch is located between the first driven wheel and the second driving wheel.

[0018] According to some embodiments of the present application, the third driven gear and the first coupling device are both arranged on the output shaft of the driving motor, the third gear assembly further comprises a fourth driving wheel, the fourth driving wheel is sleeved on the output shaft of the driving motor and engaged with the third driving gear, the third clutch is located between the third driving wheel and the fourth driving wheel, and the first coupling device is located between the fourth driving wheel and the third driven gear.

[0019] According to some embodiments of the present application, the first gear assembly comprises a first driven wheel, the first driven wheel is sleeved on the output shaft of the generator, the first driven wheel is engaged with the third main transmission wheel, and the second clutch is arranged between the first driven wheel and the second driving wheel.

[0020] According to the vehicle of the second aspect of the present application, the hybrid power system is the hybrid power system according to the first aspect of the present application.

[0021] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0023] Figure 1 is a schematic diagram of a front drive assembly of a hybrid power system according to a first embodiment of the present application;

[0024] Figure 2 is Figure 1 a power path diagram of the front drive assembly shown in the hybrid mode;

[0025] Figure 3 is Figure 1 a power path diagram of the front drive assembly shown in the double-motor generation mode;

[0026] Figure 4 is Figure 1 a power path diagram of the front drive assembly shown in the double-motor drive mode;

[0027] Figure 5 is a schematic diagram of a front drive assembly of a hybrid power system according to a second embodiment of the present application;

[0028] Figure 6 is Figure 5 a power path diagram of the front drive assembly shown in the hybrid series mode;

[0029] Figure 7 is Figure 5 a power path diagram of the front drive assembly shown in the hybrid parallel mode;

[0030] Figure 8 is Figure 5 a power path diagram of the front drive assembly shown in the engine direct drive mode;

[0031] Figure 9 is Figure 5Power path diagram of the front drive assembly in the double motor drive mode;

[0032] Figure 10 is Figure 5 Power path diagram of the front drive assembly in the single motor drive mode;

[0033] Figure 11 is Figure 5 Power path diagram of the front drive assembly in the spin mode;

[0034] Figure 12 is a schematic diagram of a front drive assembly of a hybrid system according to the third embodiment of the present application;

[0035] Figure 13 is Figure 12 Power path diagram of the front drive assembly in the hybrid series mode;

[0036] Figure 14 is Figure 12 Power path diagram of the front drive assembly in the hybrid parallel mode;

[0037] Figure 15 is Figure 12 Power path diagram of the front drive assembly in the engine direct drive mode;

[0038] Figure 16 is Figure 12 Power path diagram of the front drive assembly in the double motor drive mode;

[0039] Figure 17 is Figure 12 Power path diagram of the front drive assembly in the single motor drive mode;

[0040] Figure 18 is Figure 12 Power path diagram of the front drive assembly in the spin mode.

[0041] Reference signs:

[0042] 100: hybrid system;

[0043] 11: Engine; 12: Transmission device; 121: Power input shaft; 122: Front drive half shaft; 122a: First sub-half shaft; 122b: Second sub-half shaft; 123: Differential; 1231: Planetary mechanism; 1232: Sun gear; 1233: Planet gears; 124: First coupling device; 125: Third main drive gear; 126: Third driven gear; 127: Second coupling device; 129: Second transmission mechanism; 129a: First gear assembly; 1291: First driving gear; 1292: First driven gear; 129b: Second gear assembly; 1293: Second drive gear; 1294: Fourth intermediate gear; 1295: Fifth intermediate gear; 1296: Second driven gear; 129c: Second clutch; 130: Third transmission mechanism; 1303: Third clutch; 130a: Third gear assembly; 1304: Third drive gear; 1305: Sixth intermediate gear; 1306: Seventh intermediate gear; 1307: Third driven gear; 1308: Fourth drive gear; 13: Generator; 14: Drive motor; 224: Torque vector manager;

[0044] 300: First wheel; 310: Second wheel. Detailed Implementation

[0045] The following is for reference. Figures 1-18 A hybrid power system 100 according to a first aspect embodiment of the present invention is described.

[0046] like Figures 1-18 As shown, the hybrid power system 100 according to the first aspect of the present invention includes: an engine 11, a transmission device 12, a generator 13 and a drive motor 14.

[0047] Specifically, the transmission device 12 includes a first transmission mechanism, a second transmission mechanism 129, and a third transmission mechanism 130. The generator 13 is adapted to be powered by the first wheel 300 via the second transmission mechanism 129, and the generator 13 is also powered by the engine 11 via the first and second transmission mechanisms 129. The drive motor 14 is adapted to be powered by the second wheel 310 via the third transmission mechanism 130, wherein the first wheel 300 and the second wheel 310 are located on opposite sides of the vehicle's direction of travel.

[0048] The hybrid system 100 has a dual-motor drive mode. When the hybrid system 100 is in the dual-motor drive mode, the generator 13 is adapted to drive the first wheel 300 through the second transmission mechanism 129, and the drive motor 14 is adapted to drive the second wheel 310 through the third transmission mechanism 130.

[0049] For example, in Figures 1-7In the example, the first transmission mechanism can be disposed between the first wheel 300 and the second wheel 310. When the engine 11 is working, the power of the engine 11 can be transmitted to the first wheel 300 and the second wheel 310 via the first transmission mechanism to drive the first wheel 300 and the second wheel 310 to rotate. The second transmission mechanism 129 is disposed between the generator 13 and the first wheel 300. When the generator 13 is working, the power of the generator 13 can be transmitted to the first wheel 300 via the second transmission mechanism 129 to drive the first wheel 300 to rotate. The third transmission mechanism 130 can be disposed between the drive motor 14 and the second wheel 310. When the drive motor 14 is working, the power of the drive motor 14 can be transmitted to the second wheel 310 via the third transmission mechanism 130 to drive the second wheel 310 to rotate.

[0050] like Figure 1 As shown, in the dual-motor drive mode, both the generator 13 and the drive motor 14 are working. The power of the generator 13 can be transmitted to the first wheel 300 through the second transmission mechanism 129, and the power of the drive motor 14 can be transmitted to the second wheel 310 through the third transmission mechanism 130. This allows different power sources to independently control the first wheel 300 and the second wheel 310, thereby enabling the generator 13 and the drive motor 14 to accurately provide sufficient torque to the first wheel 300 and the second wheel 310, ensuring that the vehicle has good power performance under various working conditions, making the vehicle drive more smoothly and steadily.

[0051] For example, in dual-motor drive mode, when the vehicle turns, it is necessary to appropriately increase the speed and torque of the outer wheel to ensure the stability and smoothness of the vehicle when turning. Therefore, the torque output of one of the generator 13 or drive motor 14 (selected according to the actual working conditions) can be increased, while the torque output of the other of the generator 13 or drive motor 14 (selected according to the actual working conditions) can be appropriately reduced to create a speed difference between the first wheel 300 and the second wheel 310, thereby ensuring the stability and smoothness of the vehicle's driving.

[0052] In dual-motor drive mode, when the vehicle is traveling straight, the generator 13 and drive motor 14 are controlled to output the same torque to ensure that the first wheel 300 and the second wheel 310 rotate at the same speed.

[0053] According to the hybrid power system 100, when the hybrid power system 100 is in the double-motor driving mode, the generator 13 drives the first wheel 300 through the second transmission mechanism 129, and the driving motor 14 drives the second wheel 310 through the third transmission mechanism 130. Therefore, the generator 13 and the driving motor 14 can accurately provide sufficient torque for the first wheel 300 and the second wheel 310, so as to ensure that the vehicle has good power performance under various working conditions, and make the vehicle run more smoothly and smoothly.

[0054] Further, the transmission device 12 further comprises a power input shaft 121, a front drive half shaft 122 and a differential 123. The power input shaft 121 is connected with the engine 11. The front drive half shaft 122 comprises a first sub-half shaft 122a and a second sub-half shaft 122b, the first sub-half shaft 122a is adapted to be connected with the first wheel 300, and the second sub-half shaft 122b is adapted to be connected with the second wheel 310. The differential 123 is arranged between the first sub-half shaft 122a and the second sub-half shaft 122b, and plays a role of stable coordination, so as to ensure that the two wheels can still run stably under different speed requirements. When the two motors drive the two wheels respectively, the differential 123 can buffer and adjust the speed difference of the wheels caused by the change of the motor output power, the difference of the road conditions and other factors, prevent vibration and other situations caused by the uncoordinated speed of the wheels, so that the hybrid power system 100 is more stable and reliable, and the comfort and safety during the vehicle running are improved.

[0055] When the hybrid power system 100 is in the double-motor driving mode, the generator 13 is power-connected with the first wheel 300 through the second transmission mechanism 129, and the driving motor 14 is power-connected with the second sub-half shaft 122b through the third transmission mechanism 130.

[0056] According to some embodiments of the utility model, the transmission device 12 further comprises a first coupling device 124, the first coupling device 124 is arranged between the engine 11 and the differential 123, and when the first coupling device 124 is in the coupling state, the power of the engine 11 is transmitted to the differential 123 through the power input shaft 121, the first coupling device 124 and the first transmission mechanism. In this way, the space between the engine 11 and the differential 123 is effectively utilized, so that the structure of the hybrid power system 100 is more compact.

[0057] In addition, the first coupling device 124 can promote the cooperation between the engine 11 and the dual motor. For example, in the vehicle starting stage, the dual motor can quickly provide high-torque drive to two wheels, so that the vehicle starts smoothly; and as the vehicle speed increases, the first coupling device 124 is coupled, the power of the engine 11 is transmitted to the differential 123, and the engine 11 and the dual motor jointly provide power for the vehicle, and the dual motor can assist or recover energy according to the actual situation at this time, thereby improving the comprehensive performance of the hybrid power system 100 in various working conditions.

[0058] According to some embodiments of the present application, the first transmission mechanism includes a power-connected third main transmission wheel 125 and a third slave transmission wheel 126, the third main transmission wheel 125 is arranged on the power input shaft 121, and the third slave transmission wheel 126 is power-connected with the differential 123. Therefore, when the first coupling device 124 is in the coupled state, the power of the engine 11 can be transmitted to the differential 123 through the third main transmission wheel 125 and the third slave transmission wheel 126, and then transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, which is beneficial to effectively utilize the power of the engine 11, and the structure of the first transmission mechanism is simple. Moreover, the form of gear transmission can reduce the loss of power in the transmission process compared with some complex multi-stage transmission structures, ensure that the power of the engine 11 reaches the differential 123 with high efficiency, and then is transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the vehicle can fully utilize the power generated by the engine 11, and realize better driving performance.

[0059] Further, the first sub-half shaft 122a and the second sub-half shaft 122b are provided with a second coupling device 127, and the first sub-half shaft 122a and the second sub-half shaft 122b are connected when the second coupling device 127 is in the coupled state. When the second coupling device 127 is in the decoupled state, the first sub-half shaft 122a and the second sub-half shaft 122b are disconnected, at which time the first wheel 300 and the second wheel 310 can be controlled respectively, which is beneficial to realize the reverse steering of the first wheel 300 and the second wheel 310 without interference.

[0060] Among them, at least one of the first sub-half shaft 122a and the second sub-half shaft 122b is provided with a torque vector manager 224, and the torque vector manager 224 is located between at least one of the first wheel 300 and the second wheel 310 and the second coupling device 127. For example, only the first sub-half shaft 122a can be provided with a torque vector manager (not shown in the figure); or, only the second sub-half shaft 122b can be provided with a torque vector manager (not shown in the figure); or, the first sub-half shaft 122a and the second sub-half shaft 122b can be provided with torque vector managers 224 (as shown in the figure). Figure 1The torque vectoring manager 224 can enable the vehicle to distribute more power to the outer wheels when the vehicle is turning, ensuring smooth turning of the vehicle.

[0061] The second coupling device 127 and the torque vectoring manager 224 enable the hybrid power system 100 to work better with the steering system of the vehicle. In the dual-motor driving mode, when the vehicle needs to turn, not only can the power of the two wheels be adjusted by controlling the output torque of the dual-motor, but also the steering angle and torque distribution of the two wheels can be controlled by using the second coupling device 127 and the torque vectoring manager 224. For example, when the vehicle is running at low speed and needs a larger steering angle, the second coupling device 127 is decoupled, and the torque and steering of the two wheels are precisely controlled by the torque vectoring manager 224, while the dual-motor can adjust the power output to the corresponding wheels according to the actual situation, so that the vehicle can more flexibly complete the steering action, further improving the performance of the hybrid power system 100 in the vehicle turning process.

[0062] Optionally, the first coupling device 124 and the second coupling device 127 are clutches.

[0063] Further, the differential 123 includes a planetary mechanism 1231, the planetary mechanism 1231 including a sun gear 1232 and a planet gear 1233, the sun gear 1232 being arranged on the first sub-half shaft 122a, the second coupling device 127 being located between the sun gear 1232 and the second sub-half shaft 122b, and the planet gear 1233 being engaged with the sun gear 1232 and the third driven gear 126, respectively. When the first coupling device 124 and the second coupling device 127 are both in the coupled state, the power of the engine 11 can be transmitted to the first sub-half shaft 122a and the second sub-half shaft 122b through the first coupling device 124, the third main drive gear 125, the third driven gear 126, the planet gear 1233, and the sun gear 1232, to provide driving force to the two wheels. When the first coupling device 124 is in the coupled state and the second coupling device 127 is in the decoupled state, the power of the engine 11 can be transmitted to the first sub-half shaft 122a through the first coupling device 124, the third main drive gear 125, the third driven gear 126, the planet gear 1233, and the sun gear 1232, to provide driving force to the first wheel 300. When the first coupling device 124 is in the decoupled state and the second coupling device 127 is in the coupled state, the driving motor 14 can be power-connected to the front drive half shaft 122 through the third transmission mechanism 130, to provide driving force to the two wheels.

[0064] As Figure 2As shown in the mixed mode, the engine 11, the generator 13 and the drive motor 14 are all working, the first coupling device 124 and the second coupling device 127 are both in the coupling state, at this time, the power of the engine 11 is transmitted to the first sub-half shaft 122a and the second sub-half shaft 122b through the first coupling device 124, the third main transmission wheel 125, the third transmission wheel 126, the planetary gear 1233 and the sun gear 1232, the power of the generator 13 is transmitted to the first sub-half shaft 122a and the second sub-half shaft 122b through the second transmission mechanism 129, and the power of the drive motor 14 is transmitted to the second sub-half shaft 122b and the first sub-half shaft 122a through the third transmission mechanism 130, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0065] As shown in the mixed mode, Figure 3 As shown in the dual-motor generator mode, the torque vector manager 224 on the front drive half shaft 122 is in the disconnected state, that is, the power of the front drive half shaft 122 cannot be transmitted to the first wheel 300 and the second wheel 310, but the power of the front drive half shaft 122 can be transmitted to the generator 13 and the drive motor 14 for power generation.

[0066] As shown in the mixed mode, Figure 4 As shown in the dual-motor drive mode, the generator 13 and the drive motor 14 are all working, the first coupling device 124 and the second coupling device 127 are both in the decoupling state, the power of the generator 13 is transmitted to the first sub-half shaft 122a through the second transmission mechanism 129, and the power of the drive motor 14 is transmitted to the second sub-half shaft 122b through the third transmission mechanism 130. Among them, if the generator 13 and the drive motor 14 rotate in the same direction, the first wheel 300 and the second wheel 310 rotate in the same direction. If the generator 13 and the drive motor 14 rotate in opposite directions, the first wheel 300 and the second wheel 310 rotate in opposite directions.

[0067] According to the second embodiment of the utility model, as shown in the figure, Figures 5-11 The second transmission mechanism 129 comprises a second clutch 129c, a first gear assembly 129a and a second gear assembly 129b.

[0068] Among them, the second clutch 129c is arranged on the output shaft of the generator 13, and the second clutch 129c comprises a third engagement state and a fourth engagement state. When the second clutch 129c is in the third engagement state, the generator 13 is power-connected with the power input shaft 121 through the first gear assembly 129a, at this time, the power of the engine 11 can be transmitted to the generator 13, so that the generator 13 generates power. When the second clutch 129c is in the fourth engagement state, the generator 13 is power-connected with the front drive half shaft 122 through the second gear assembly 129b, at this time, the power of the generator 13 can be transmitted to the first wheel 300 and the second wheel 310, so as to ensure that the vehicle has sufficient power performance under various working conditions.

[0069] According to some embodiments of this utility model, the second gear assembly 129b includes a second driving gear 1293, a fourth intermediate gear 1294, a fifth intermediate gear 1295, and a second driven gear 1296. The second driving gear 1293 is loosely fitted on the output shaft of the generator 13 and meshes with the fourth intermediate gear 1294. The fourth intermediate gear 1294 and the fifth intermediate gear 1295 are connected. The second driven gear 1296 is disposed on the first sub-half shaft 122a and meshes with the fifth intermediate gear 1295. The second gear assembly 129b forms a stable transmission path through multiple meshing gears. The engagement between the gears is tight and relatively fixed. The connection between the fourth intermediate gear 1294 and the fifth intermediate gear 1295 also enhances the overall integrity of the second gear assembly 129b.

[0070] In some alternative embodiments, the third transmission mechanism 130 includes a third clutch 1303 and a first gear assembly 130a.

[0071] Specifically, the third clutch 1303 is located on the output shaft of the drive motor 14. The third clutch 1303 has a fifth engagement state and a sixth engagement state. When the third clutch 1303 is in the fifth engagement state, it is poweredly connected to the third driven pulley 126. At this time, the power of the drive motor 14 can be transmitted to the differential 123 via the third clutch 1303 and the third driven pulley 126. When the third clutch 1303 is in the sixth engagement state, the drive motor 14 is poweredly connected to the second half-shaft 122b via the first gear assembly 130a. At this time, the power of the drive motor 14 can be transmitted to the front drive half-shaft 122 via the third clutch 1303 and the first gear assembly 130a. This arrangement ensures that the vehicle has sufficient power performance under various operating conditions. Moreover, the third transmission mechanism 130 transmits power through the third clutch 1303 and the first gear assembly 130a. Compared with multiple dispersed and complex transmission structures, the structure of the third transmission mechanism 130 is more compact.

[0072] According to some embodiments of the present invention, the first gear assembly 130a includes a third driving gear 1304, a sixth intermediate gear 1305, a seventh intermediate gear 1306, and a third driven gear 1307. The third driving gear 1304 is loosely fitted on the output shaft of the drive motor 14 and meshes with the sixth intermediate gear 1305. The sixth intermediate gear 1305 is connected to the seventh intermediate gear 1306. The third driven gear 1307 is disposed on the front drive half-shaft 122 and meshes with the seventh intermediate gear 1306. The first gear assembly 130a forms a stable transmission path through multiple meshing gears. The engagement between the gears is tight and relatively fixed. The connection between the sixth intermediate gear 1305 and the seventh intermediate gear 1306 also enhances the overall integrity of the first gear assembly 130a.

[0073] likeFigure 5 As shown, the sixth intermediate wheel 1305 and the seventh intermediate wheel 1306 are coaxially arranged, and the sixth intermediate wheel 1305 and the seventh intermediate wheel 1306 are located between the output shaft of the drive motor 14 and the front drive half shaft 122.

[0074] According to some embodiments of the present invention, the third main drive wheel 125 meshes with the third driven wheel 126, the first coupling device 124 is disposed on the power input shaft 121, and the first coupling device 124 is located between the engine 11 and the third main drive wheel 125. This arrangement makes the entire hybrid power system 100 more compact.

[0075] According to some embodiments of this utility model, the first gear assembly 129a includes a first driving gear 1291 and a first driven gear 1292 that mesh with each other. The first driving gear 1291 is disposed on the power input shaft 121, and the first driven gear 1292 is loosely fitted on the output shaft of the generator 13. The second clutch 129c is located between the first driving gear 1291 and the second driving gear 1292. When the second clutch 129c is in a third engaged state, the second clutch 129c engages with the first driven gear 1292, which allows the power of the engine 11 to be transmitted to the generator 13 via the first driving gear 1291, the first driven gear 1292, and the second clutch 129c, enabling the generator 13 to generate electricity.

[0076] like Figure 6 As shown, in the hybrid series mode, the engine 11, generator 13, and drive motor 14 all operate. The first coupling device 124 is in a decoupled state, the second clutch 129c switches to the third engagement state, and the third clutch 1303 is in the fifth engagement state. At this time, the power of the engine 11 is transmitted to the generator 13 through the first drive wheel 1291, the first driven wheel 1292, and the second clutch 129c, so that the generator 13 generates electricity and supplies power to the drive motor 14. The power of the drive motor 14 is transmitted to the differential 123 through the third clutch 1303 and the third driven wheel 126, and finally to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0077] like Figure 7As shown, in the hybrid parallel mode, the engine 11 and the drive motor 14 are both working, the first coupling device 124 is in the coupling state, the second clutch 129c is in the neutral state, and the third clutch 1303 is switched to the fifth engagement state. At this time, the power of the engine 11 is transmitted to the differential 123 through the third driving wheel 125 and the third driven wheel 126, the power of the drive motor 14 is transmitted to the differential 123 through the third clutch 1303 and the third driven wheel 126, and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0078] As shown in FIG. 6, in the engine 11 direct drive mode, only the engine 11 works, the first coupling device 124 is in the coupling state, the second clutch 129c and the third clutch 1303 are both in the neutral state. At this time, the power of the engine 11 is transmitted to the differential 123 through the third driving wheel 125 and the third driven wheel 126, and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction. Figure 8 As shown in FIG. 7, in the dual-motor drive mode, the generator 13 and the drive motor 14 are both working, the first coupling device 124 is in the decoupling state, the second clutch 129c is switched to the fourth engagement state, and the third clutch 1303 is switched to the sixth engagement state. At this time, the power of the generator 13 is transmitted to the front drive half shaft 122 through the second clutch 129c, the second driving wheel 1293, the fourth intermediate wheel 1294, the fifth intermediate wheel 1295 and the second driven wheel 1296, and the power of the drive motor 14 is transmitted to the front drive half shaft 122 through the third clutch 1303, the third driving wheel 1304, the sixth intermediate wheel 1305, the seventh intermediate wheel 1306 and the third driven wheel 1307, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0079] Figure 9 As shown in FIG. 8, in the single-motor drive mode, only the drive motor 14 works, the first coupling device 124 is in the decoupling state, the second clutch 129c is in the neutral state, and the third clutch 1303 is switched to the fifth engagement state. The power of the drive motor 14 is transmitted to the differential 123 through the third clutch 1303 and the third driven wheel 126, and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0080] As shown in FIG. 9, in the engine 11 direct drive mode, only the engine 11 works, the first coupling device 124 is in the coupling state, the second clutch 129c and the third clutch 1303 are both in the neutral state. At this time, the power of the engine 11 is transmitted to the differential 123 through the third driving wheel 125 and the third driven wheel 126, and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction. Figure 10 As shown in FIG. 10, in the dual-motor drive mode, the generator 13 and the drive motor 14 are both working, the first coupling device 124 is in the decoupling state, the second clutch 129c is switched to the fourth engagement state, and the third clutch 1303 is switched to the sixth engagement state. At this time, the power of the generator 13 is transmitted to the front drive half shaft 122 through the second clutch 129c, the second driving wheel 1293, the fourth intermediate wheel 1294, the fifth intermediate wheel 1295 and the second driven wheel 1296, and the power of the drive motor 14 is transmitted to the front drive half shaft 122 through the third clutch 1303, the third driving wheel 1304, the sixth intermediate wheel 1305, the seventh intermediate wheel 1306 and the third driven wheel 1307, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0081] Figure 11 ​​As shown, in the on-the-spot turning mode, the generator 13 and the driving motor 14 are both working, the first coupling device 124 is in the decoupling state, the second clutch 129c is switched to the fourth engagement state, and the third clutch 1303 is switched to the fifth engagement state, at this time, the power of the generator 13 is transmitted to the front drive half shaft 122 through the second clutch 129c, the second driving wheel 1293, the fourth intermediate wheel 1294, the fifth intermediate wheel 1295 and the second driven wheel 1296; the power of the driving motor 14 is transmitted to the differential 123 through the third clutch 1303 and the third driven wheel 126, and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so as to make the first wheel 300 and the second wheel 310 reverse rotation.

[0082] According to the third embodiment of the utility model, Figures 12-18 As shown, the third driven wheel 126 and the first coupling device 124 are both arranged on the output shaft of the driving motor 14. The first gear assembly 130a further comprises a fourth driving wheel 1308, the fourth driving wheel 1308 is sleeved on the output shaft of the driving motor 14 and is engaged with the third driving wheel 125, the third clutch 1303 is located between the third driving wheel 1304 and the fourth driving wheel 1308, and the first coupling device 124 is located between the fourth driving wheel 1308 and the third driven wheel 126.

[0083] Since the third driven wheel 126 and the first coupling device 124 are both arranged on the output shaft of the driving motor 14, through the different state control of the first coupling device 124 and the third clutch 1303, a plurality of power transmission paths can be realized. For example, at the vehicle starting stage, the third clutch 1303 can be controlled to be in a suitable engagement state (such as making the driving motor 14 power connected with the front drive half shaft 122 through the first gear assembly 130a), and at the same time, the first coupling device 124 can be in a decoupling state, the driving motor 14 alone provides high torque for the wheels, and the vehicle is started smoothly and quickly. By such arrangement, the vehicle has good power performance under various working conditions, so that the vehicle runs more smoothly and smoothly.

[0084] According to some embodiments of the utility model, the first gear assembly 129a comprises a first driving wheel 1291, the first driving wheel 1291 is sleeved on the output shaft of the generator 13, the first driving wheel 1291 is engaged with the third driving wheel 125, and the second clutch 129c is arranged between the first driven wheel 1292 and the second driving wheel 1293.

[0085] The first driving wheel 1291 is sleeved on the output shaft of the generator 13, and the space layout of these components is more compact through the meshing with the third main transmission wheel 125 and the arrangement of the second clutch 129c between the first driving wheel 1293 and the second driving wheel 1292. Moreover, the second clutch 129c is arranged between the first driven wheel 1292 and the second driving wheel 1293, and the transmission of power between these two gears can be effectively controlled.

[0086] As shown in Figure 12 , the third main transmission wheel 125 and the first driving wheel 1291 can be the same gear, and the third main transmission wheel 125 is meshed with the first driven wheel 1292 and the fourth driving wheel 1308. The second driving wheel 1293 is arranged at the end of the output shaft of the generator 13, and the fourth intermediate wheel 1294 and the fifth intermediate wheel 1295 are coaxially arranged. The third from transmission wheel 126, the first coupling device 124, the third driving wheel 1304 and the fourth driving wheel 1308 are arranged on the output shaft of the drive motor 14, and the third from transmission wheel 126 is located at the end of the output shaft of the drive motor 14, the first coupling device 124 is located between the third from transmission wheel 126 and the fourth driving wheel 1308, the fourth driving wheel 1308 is located between the first coupling device 124 and the third driving wheel 1304, and the sixth intermediate wheel 1305 and the seventh intermediate wheel 1306 are coaxially arranged.

[0087] As shown in Figure 13 , in the hybrid series mode, the engine 11, the generator 13 and the drive motor 14 are all working, the first coupling device 124 is in the decoupling state, the second clutch 129c is switched to the third engagement state, and the third clutch 1303 is switched to the fifth engagement state. At this time, part of the power of the engine 11 is transmitted to the generator 13 through the third main transmission wheel 125 (equivalent to the first driving wheel 1291), the first driven wheel 1292 and the second clutch 129c, so that the generator 13 generates electricity and supplies power to the drive motor 14; another part of the power of the engine 11 is transmitted to the differential 123 through the third main transmission wheel 125, the fourth driving wheel 1308, the third clutch 1303, the first coupling device 124 and the third from transmission wheel 126; the power of the drive motor 14 is transmitted to the differential 123 through the first coupling device 124 and the third from transmission wheel 126; and finally transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0088] As shown in Figure 14As shown, in the hybrid parallel mode, both the engine 11 and the drive motor 14 are working. The first coupling device 124 is in a coupled state, the second clutch 129c is in a neutral state, and the third clutch 1303 is switched to the fifth engaged state. At this time, the power of the engine 11 is transmitted to the differential 123 through the third main drive wheel 125, the fourth drive wheel 1308, the third clutch 1303, the first coupling device 124, and the third driven wheel 126. The power of the drive motor 14 is transmitted to the differential 123 through the first coupling device 124 and the third driven wheel 126. Finally, the power is transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0089] like Figure 15 As shown, in the direct drive mode of engine 11, only engine 11 works, the first coupling device 124 is the coupling device, the second clutch 129c is in neutral, and the third clutch 1303 switches to the fifth engagement state. At this time, the power of engine 11 is transmitted to differential 123 through the third main drive wheel 125, the fourth drive wheel 1308, the third clutch 1303, the first coupling device 124 and the third drive wheel 126; finally, it is transmitted to the first wheel 300 and the second wheel 310 through the front drive half shaft 122 so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0090] like Figure 16 As shown, in the dual-motor drive mode, both the generator 13 and the drive motor 14 are working. The first coupling device 124 is in a decoupled state, the second clutch 129c switches to the fourth engagement state, and the third clutch 1303 switches to the fifth engagement state. At this time, the power of the generator 13 is transmitted to the front drive half-shaft 122 via the second clutch 129c, the second driving wheel 1293, the fourth intermediate wheel 1294, the fifth intermediate wheel 1295, and the second driven wheel 1296. The power of the drive motor 14 is transmitted to the front drive half-shaft 122 via the third clutch 1303, the third driving wheel 1304, the sixth intermediate wheel 1305, the seventh intermediate wheel 1306, and the third driven wheel 1307. Finally, the power is transmitted to the first wheel 300 and the second wheel 310 via the front drive half-shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0091] like Figure 17 As shown, in single-motor drive mode, only drive motor 14 works, the first coupling device 124 is in a coupled state, and the second clutch 129c and the third clutch 1303 are in a neutral state. At this time, the power of drive motor 14 is transmitted to differential 123 through the first coupling device 124 and the third drive wheel 126, and finally to the first wheel 300 and the second wheel 310 through the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in the same direction.

[0092] like Figure 18 As shown, in the stationary steering mode, both the generator 13 and the drive motor 14 are working. The first coupling device 124 is in a coupled state, the second clutch 129c is switched to the fourth engaged state, and the third clutch 1303 is in neutral. At this time, the power of the generator 13 is transmitted to the front drive half shaft 122 via the second clutch 129c, the second drive wheel 1293, the fourth intermediate wheel 1294, the fifth intermediate wheel 1295, and the second driven wheel 1296. The power of the drive motor 14 is transmitted to the differential 123 via the first coupling device 124 and the third driven wheel 126, and finally to the first wheel 300 and the second wheel 310 via the front drive half shaft 122, so that the first wheel 300 and the second wheel 310 rotate in opposite directions.

[0093] The vehicle according to a second aspect embodiment of the present invention includes a hybrid power system 100 according to the first aspect embodiment of the present invention described above.

[0094] According to the present invention, the vehicle, by adopting the above-mentioned hybrid power system 100, can accurately provide sufficient torque to the first wheel 300 and the second wheel 310 through the generator 13 and the drive motor 14, so as to ensure that the vehicle has good power performance under various working conditions, making the vehicle drive more smoothly and steadily.

[0095] Other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0096] In the description of this utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0097] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0098] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example.

[0099] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hybrid power system (100), characterized in that, include: Engine (11); The transmission device (12) includes a first transmission mechanism, a second transmission mechanism (129) and a third transmission mechanism (130). A generator (13) is adapted to be powered to a first wheel (300) via a second transmission mechanism (129), and the generator (13) is powered to the engine (11) via the first transmission mechanism and the second transmission mechanism (129); A drive motor (14) is adapted to be poweredly connected to a second wheel (310) via the third transmission mechanism (130), wherein the first wheel (300) and the second wheel (310) are located on opposite sides of the vehicle's direction of travel; When the hybrid system (100) is in dual-motor drive mode, the generator (13) is disconnected from the engine (11) through the first transmission mechanism, the generator (13) is adapted to drive the first wheel (300) through the second transmission mechanism (129), and the drive motor (14) is adapted to drive the second wheel (310) through the third transmission mechanism (130).

2. The hybrid power system (100) according to claim 1, characterized in that, The transmission device (12) further includes: A power input shaft (121) is connected to the engine (11); A front drive half-shaft (122) includes a first sub-half-shaft (122a) and a second sub-half-shaft (122b), the first sub-half-shaft (122a) being adapted to be connected to the first wheel (300), and the second sub-half-shaft (122b) being adapted to be connected to the second wheel (310); A differential (123) is disposed between the first sub-half shaft (122a) and the second sub-half shaft (122b); When the hybrid power system (100) is in the dual-motor drive mode, the generator (13) is powered to the first wheel (300) through the second transmission mechanism (129), and the drive motor (14) is powered to the second sub-half shaft (122b) through the third transmission mechanism (130).

3. The hybrid power system (100) according to claim 2, characterized in that, The transmission device (12) further includes: The first coupling device (124) is located between the engine (11) and the differential (123). When the first coupling device (124) is in the coupling state, the power of the engine (11) is transmitted to the differential (123) through the power input shaft (121), the first coupling device (124) and the first transmission mechanism.

4. The hybrid power system (100) according to claim 3, characterized in that, The first transmission mechanism includes a third main drive wheel (125) and a third driven drive wheel (126) that are powered together. The third main drive wheel (125) is mounted on the power input shaft (121), and the third driven drive wheel (126) is powered together with the differential (123).

5. The hybrid power system (100) according to claim 4, characterized in that, A second coupling device (127) is provided between the first sub-shaft (122a) and the second sub-shaft (122b). When the second coupling device (127) is in the coupling state, the first sub-shaft (122a) and the second sub-shaft (122b) are connected. The torque vector manager (224) is provided on at least one of the first sub-half shaft (122a) and the second sub-half shaft (122b), and the torque vector manager (224) is located between at least one of the first wheel (300) and the second wheel (310) and the second coupling device (127).

6. The hybrid power system (100) according to claim 5, characterized in that, The differential (123) includes a planetary mechanism (1231), which includes a sun gear (1232) and planet gears (1233). The sun gear (1232) is located on the first slave half-shaft (122a). The second coupling device (127) is located between the sun gear (1232) and the second slave half-shaft (122b). The planet gears (1233) mesh with the sun gear (1232) and the third slave drive gear (126), respectively.

7. The hybrid power system (100) according to claim 4, characterized in that, The second transmission mechanism (129) includes: The second clutch (129c) is located on the output shaft of the generator (13) and includes a third engagement state and a fourth engagement state. When the first gear assembly (129a) and the second clutch (129c) are in the third engagement state, the generator (13) is poweredly connected to the power input shaft (121) through the first gear assembly (129a); When the second gear assembly (129b) and the second clutch (129c) are in the fourth engagement state, the generator (13) is poweredly connected to the front drive half shaft (122) through the second gear assembly (129b).

8. The hybrid power system (100) according to claim 7, characterized in that, The second gear assembly (129b) includes a second driving gear (1293), a fourth intermediate gear (1294), a fifth intermediate gear (1295), and a second driven gear (1296). The second driving gear (1293) is loosely fitted on the output shaft of the generator (13) and meshes with the fourth intermediate gear (1294). The fourth intermediate gear (1294) and the fifth intermediate gear (1295) are connected. The second driven gear (1296) is disposed on the first sub-shaft (122a) and meshes with the fifth intermediate gear (1295).

9. The hybrid power system (100) according to claim 8, characterized in that, The third transmission mechanism (130) includes: The third clutch (1303) is located on the output shaft of the drive motor (14). The third clutch (1303) includes a fifth engagement state and a sixth engagement state. When the third clutch (1303) is in the fifth engagement state, the third clutch (1303) is poweredly connected to the third driven wheel (126). When the third gear assembly (130a) and the third clutch (1303) are in the sixth engagement state, the drive motor (14) is poweredly connected to the second sub-half shaft (122b) through the third gear assembly (130a).

10. The hybrid power system (100) according to claim 9, characterized in that, The third gear assembly (130a) includes a third driving gear (1304), a sixth intermediate gear (1305), a seventh intermediate gear (1306), and a third driven gear (1307). The third driving gear (1304) is loosely fitted on the output shaft of the drive motor (14) and meshes with the sixth intermediate gear (1305). The sixth intermediate gear (1305) is connected to the seventh intermediate gear (1306). The third driven gear (1307) is mounted on the front drive half-shaft (122) and meshes with the seventh intermediate gear (1306).

11. The hybrid power system (100) according to claim 6 or 10, characterized in that, The third main drive wheel (125) meshes with the third driven wheel (126), the first coupling device (124) is disposed on the power input shaft (121), and the first coupling device (124) is located between the engine (11) and the third main drive wheel (125).

12. The hybrid power system (100) according to claim 10, characterized in that, The first gear assembly (129a) includes a first driving gear (1291) and a first driven gear (1292) that mesh with each other. The first driving gear (1291) is disposed on the power input shaft (121), and the first driven gear (1292) is loosely fitted on the output shaft of the generator (13). The second clutch (129c) is located between the first driven gear (1292) and the second driving gear (1293).

13. The hybrid power system (100) according to claim 10, characterized in that, The third drive wheel (126) and the first coupling device (124) are both located on the output shaft of the drive motor (14); The third gear assembly (130a) further includes a fourth drive gear (1308), which is loosely fitted on the output shaft of the drive motor (14) and meshes with the third main drive gear (125). The third clutch (1303) is located between the third drive gear (1304) and the fourth drive gear (1308), and the first coupling device (124) is located between the fourth drive gear (1308) and the third driven gear (126).

14. The hybrid power system (100) according to claim 13, characterized in that, The first gear assembly (129a) includes a first driven gear (1292), which is loosely fitted on the output shaft of the generator (13). The first driven gear (1292) meshes with the third main drive gear (125), and the second clutch (129c) is located between the first driven gear (1292) and the second drive gear (1293).

15. A vehicle, characterized in that, Includes the hybrid power system (100) according to any one of claims 1-14.

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