Hybrid power system and vehicle with same

Abstract

The utility model discloses a hybrid power system and a vehicle with the hybrid power system, and the hybrid power system comprises a front axle power group, a first motor, a first transmission device, a second transmission device, a driving coupling device, a disconnection and combination device and a gear shifting device, the driving coupling device is configured to couple the driving force of the front axle power pack and the driving force of the first motor; the disconnecting and combining device is arranged between the driving coupling device and the second transmission device, and selectively communicates the driving coupling device with the second transmission device; the gear shifting device is arranged between the first transmission device and the disconnection and combination device and comprises a first gear and a second gear, and at least one of the first gear and the second gear is in meshing transmission. According to the hybrid power system, the gear shifting device is arranged in the hybrid power system, different transmission speed ratios can be formed through the power transmitted by the first transmission device to meet the driving requirement of the vehicle, and therefore the use performance of the hybrid power system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive systems, in particular to a hybrid power system and a vehicle having the same. Background Art

[0002] Hybrid powertrains are increasingly being used in off-road vehicles and are becoming a mainstream option in the current market. These systems often utilize a front-axle powertrain to drive the front axle while an electric motor drives the rear axle. This approach, however, does not provide high output for hybrid systems, resulting in poor performance in harsh road conditions and failing to meet the driving demands of off-road vehicles. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a hybrid power system that incorporates a shifting device within the hybrid power system. The shifting device has gears with different speed ratios, thereby enabling the hybrid power system to have a wider range of operating modes during use. The shifting device can also integrate the output power of the front axle power unit and the electric motor to provide a higher output capacity to meet driving requirements in various road conditions.

[0004] Another object of the present invention is to provide a vehicle, in which the hybrid power system is installed.

[0005] According to an embodiment of the present utility model, a hybrid power system includes: a front axle power group, a first electric motor, a first transmission device, a second transmission device, a drive coupling device, a disconnecting device and a shifting device, wherein an input end of the first transmission device is drive-connected to an output end of the front axle power group; an input end of the second transmission device is drive-connected to an output end of the first electric motor; one end of the drive coupling device is drive-connected to the output end of the first transmission device, and the other end of the drive coupling device is drive-connected to the output end of the second transmission device, and the drive coupling device is configured to couple the driving force of the front axle power group with the driving force of the first electric motor; the disconnecting device is provided between the drive coupling device and the first transmission device, and / or the disconnecting device is provided between the drive coupling device and the second transmission device, and the disconnecting device selectively connects the drive coupling device to one of the first transmission device and the second transmission device; the shifting device is provided between the first transmission device and the disconnecting device, and the shifting device includes a first gear and a second gear, the first gear and the second gear have different speed ratios, and at least one of the first gear and the second gear is engaged for transmission.

[0006] According to the hybrid power system of the embodiment of the present invention, a shifting device is provided within the hybrid power system. Since the shifting device is provided with a first gear and a second gear, the power transmitted by the first transmission device can form different transmission speed ratios to meet the driving requirements of the vehicle, thereby improving the performance of the hybrid power system. Furthermore, since the hybrid power system is provided with a disconnection and coupling device, the disconnection and coupling device can be disconnected and coupled according to control, so that the power can be selectively transmitted to the drive coupling device for coupling and output according to demand, or the power can be directly transmitted to the front axle and the rear axle for output according to demand, so that the hybrid power system has multiple output modes, so that the vehicle can select different power output modes according to demand during driving, and can provide higher output performance after coupling, thereby improving the driving performance of the vehicle.

[0007] In some embodiments, the shift device includes: a shift sun gear, a shift planetary carrier, a shift ring gear and a shift transmission shaft, the shift sun gear is arranged at the output end of the first transmission device; the shift planetary carrier is arranged on the outside of the shift planetary gear, and the shift planetary gear is engaged with the shift sun gear; the shift ring gear is engaged with the shift planetary gear, and the shift ring gear is braked; a synchronizer is fixed on the shift transmission shaft, and the synchronizer selectively connects the shift transmission shaft with the shift sun gear and the shift planetary carrier to construct one of the first gear and the second gear, and the drive coupling device is connected to the free end of the shift transmission shaft.

[0008] In some embodiments, the method further comprises: a torque distribution device and / or a mechanical lock, wherein the torque distribution device and / or the mechanical lock are arranged between the output end of the first transmission device and the drive coupling device.

[0009] In some embodiments, the disconnection and coupling device includes: a first connecting part and a second connecting part, the first connecting part is connected to the drive coupling device; the second connecting part is arranged at the output end of the second transmission device, and the first connecting part and the second connecting part are selectively connected in transmission.

[0010] In some embodiments, the drive coupling device includes: a first coupling part and a second coupling part, the first coupling part is arranged at the output end of the first transmission device; the second coupling part is arranged at the output end of the second transmission device, and the first coupling part and the second coupling part are engaged for transmission.

[0011] In some embodiments, the first coupling portion and the second coupling portion are both spiral bevel gears, and the first coupling portion and the second coupling portion are vertically coupled to each other.

[0012] In some embodiments, the first transmission device includes: a planetary transmission assembly, a first transmission shaft, a plurality of gear members, and a second transmission shaft, the planetary transmission assembly is transmission-connected to the output end of the front axle power group; the first transmission shaft is transmission-connected to the planetary transmission assembly; at least part of the gear member is arranged on the first transmission shaft; the second transmission shaft and the first transmission shaft are arranged in parallel at intervals, at least another part of the gear member is arranged on the second transmission shaft, and the output end of the second transmission shaft is connected to the drive coupling device.

[0013] In some embodiments, multiple gear components include: a first gear portion, a second gear portion and a first synchronizer, the first gear portion includes two first gears meshing with each other, one first gear is provided on the first transmission shaft, and the other first gear is provided on the second transmission shaft; the second gear portion includes two second gears meshing with each other, one second gear is provided on the first transmission shaft, and the other second gear is provided on the second transmission shaft; the first synchronizer selectively controls one of the first gear portion and the second gear portion for combined use.

[0014] In some embodiments, the third gear portion and the second synchronizer, the third gear portion includes three third gears meshed in sequence, one of the third gears is provided on the first transmission shaft, one of the third gears is provided on the second transmission shaft, and another of the third gears is meshed and connected between the other third gears; the second synchronizer and the first synchronizer are arranged at intervals, and the second synchronizer selectively controls the third gear portion for combined use.

[0015] In some embodiments, the front axle power group includes: an engine and a second electric motor, the engine and the second electric motor are coaxially arranged, and the electric motor selectively provides power or generates electricity.

[0016] In some embodiments, the second transmission device includes: a reduction gear pair, a third transmission shaft, a fourth transmission shaft, a fifth gear portion, a sixth gear portion and a third synchronizer, the reduction gear pair including a first reduction gear and a second reduction gear, the first reduction gear and the second reduction gear being meshed for transmission; the first reduction gear is arranged on the output shaft of the first motor; the third transmission shaft is arranged parallel to the output shaft of the first motor, the second reduction gear is arranged on the third transmission shaft, and the fourth transmission shaft and the third transmission shaft are arranged parallel; the fifth gear portion includes two fifth gears meshing with each other, one fifth gear is arranged on the third transmission shaft, and the other third gear is arranged on the fourth transmission shaft; the sixth gear portion is spaced apart from the fifth gear portion, and the sixth gear portion includes two sixth gears meshing with each other, one sixth gear is arranged on the third transmission shaft, and the other sixth gear is arranged on the fourth transmission shaft; the third synchronizer selectively controls one of the fifth gear portion and the sixth gear portion for combined use.

[0017] In some embodiments, it also includes: a first differential and a second differential, the first differential is connected to the output end of the first transmission device, and the first differential is connected to the front axle transmission; the second differential is connected to the output end of the second transmission device, and the second differential is connected to the rear axle transmission.

[0018] A vehicle according to an embodiment of the present invention includes: the hybrid power system as described above.

[0019] According to the vehicle of the embodiment of the present invention, since the hybrid power system as shown above is provided in the vehicle, a shifting device is provided in the hybrid power system, and since the shifting device is provided with a first gear and a second gear, the power transmitted by the first transmission device can form different transmission speed ratios to meet the driving requirements of the vehicle, thereby improving the performance of the hybrid power system. In addition, since the hybrid power system is provided with a disconnection and coupling device, the disconnection and coupling device can be disconnected and coupled according to control, so that the power can be selectively transmitted to the drive coupling device for coupling and output according to demand, or the power can be directly transmitted to the front axle and the rear axle for output according to demand, so that the hybrid power system has multiple output modes, so that the vehicle can select different power output modes according to demand during driving, and can provide higher output performance after coupling, thereby improving the driving performance of the vehicle.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a structural schematic diagram of a hybrid power system according to an embodiment of the present utility model;

[0023] Figure 2 is a structural schematic diagram of a hybrid power system according to an embodiment of the present utility model;

[0024] Figure 3 is a structural schematic diagram of a hybrid power system according to an embodiment of the present utility model;

[0025] Reference numerals:

[0026] Hybrid system 10,

[0027] Front axle power unit 100, second electric motor 110, engine 120,

[0028] The first motor 200,

[0029] The first transmission device 300, the planetary transmission assembly 310, the first transmission shaft 320, the shift member 330, the first shift portion 331, the first gear 3311, the second shift portion 332, the second gear 3321, the third shift portion 333, the third gear 3331, the first synchronizer 335, the second synchronizer 336, the second transmission shaft 340,

[0030] The second transmission device 400, the reduction gear pair 410, the first reduction gear 4101, the second reduction gear 4102, the third transmission shaft 420, the fourth transmission shaft 430, the fifth gear unit 440, the fifth gear 4401, the sixth gear unit 450, the sixth gear 4501, the third synchronizer 460,

[0031] Drive coupling device 500, first coupling portion 510, second coupling portion 520,

[0032] Disconnect the coupling device 600,

[0033] The first differential 810, the second differential 820,

[0034] Shift device 900 , shift sun gear 910 , shift planet carrier 920 , shift ring gear 930 , synchronizer 940 , shift transmission shaft 950 , torque distribution device 960 , and mechanical lock 970 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0036] Reference below Figure 1-Figure 3 A hybrid power system 10 according to an embodiment of the present invention is described, including: a front axle power group 100, a first electric motor 200, a first transmission device 300, a second transmission device 400, a drive coupling device 500, a disconnection device 600 and a shift device 900.

[0037] Specifically, the input end of the first transmission device 300 is transmission-connected to the output end of the front axle power group 100; the input end of the second transmission device 400 is transmission-connected to the output end of the first motor 200; one end of the drive coupling device 500 is transmission-connected to the output end of the first transmission device 300, and the other end of the drive coupling device 500 is transmission-connected to the output end of the second transmission device 400, and the drive coupling device 500 is configured to couple the driving force of the front axle power group 100 and the driving force of the first motor 200; the disconnection device is arranged between the drive coupling device 500 and the second transmission device 400, and the disconnection device 600 selectively connects the drive coupling device 500 and the second transmission device 400; the shifting device 900 is arranged between the first transmission device 300 and the disconnection device 600, and the shifting device 900 includes a first gear and a second gear, the speed ratios of the first gear and the second gear are different, and at least one of the first gear and the second gear is engaged for transmission.

[0038] It should be noted that the hybrid power system 10 provided in the present application is suitable for being constructed in an off-road vehicle so that the power output of the vehicle can meet the driving requirements of the vehicle, so that the power output of the vehicle can be stronger.

[0039] Specifically, the hybrid system 10 is suitable for including a front axle power group 100, a first electric motor 200, a first transmission device 300, a second transmission device 400, a drive coupling device 500 and a disconnection device 600. The front axle power group 100 is suitable for providing driving force, the first electric motor 200 is suitable for providing motor power, and the power provided by the front axle power group 100 is suitable for being transmitted through the first transmission device 300 and finally transmitted to the drive coupling device 500 for coupling. At the same time, the power provided by the first electric motor 200 is suitable for being transmitted through the second transmission device 400 and finally transmitted to the other side of the drive coupling device 500 for coupling, so that the hybrid system 10 can transmit the power after coupling to realize the power output of the hybrid system 10.

[0040] Moreover, a disconnection coupling device 600 is adapted to be provided on both sides of the drive coupling device 500. The disconnection coupling device 600 is adapted to be coupled or disconnected according to control to realize power transmission or separate power transmission, so that the hybrid system 10 can provide different power outputs according to demand, so that the output performance of the hybrid system 10 can meet the driving requirements of the vehicle, so that the use experience of the vehicle equipped with the hybrid system 10 can be improved.

[0041] Specifically, the input end of the first transmission device 300 is in transmission connection with the output end of the front axle power unit 100, allowing the power provided by the front axle power unit 100 to be adjusted and transmitted through the first transmission device 300, so that the power transmitted by the first transmission device 300 can meet the power requirements of the vehicle. Similarly, the input end of the second transmission device 400 is in transmission connection with the output end of the first electric motor 200, allowing the power provided by the first electric motor 200 to be transmitted and adjusted through the second transmission device 400, so that the power transmitted by the second transmission device 400 can meet the power requirements of the vehicle. The power transmitted by the first transmission device 300 and the power transmitted by the second transmission device 400 can be transmitted to the drive coupling device 500, so that the drive coupling device 500 can couple the power transmitted to the drive coupling device 500, so that the power output of the hybrid system 10 is suitable for meeting the driving requirements of the vehicle. Moreover, by providing a disconnection and coupling device 600 on both sides of the drive coupling device 500, the power transmission and separation of the first transmission device 300 and the second transmission device 400 can be realized by controlling the disconnection and coupling of the disconnection and coupling device 600, that is, the coupling or disconnection between the front axle power and the rear axle power, thereby realizing the two-wheel drive or four-wheel drive mode of the vehicle, providing different power output driving according to road conditions, so that the vehicle equipped with the hybrid power system 10 has higher driving performance to meet the use requirements.

[0042] Moreover, a shifting device 900 is provided between the drive coupling device 500 and the first transmission device 300. The shifting device 900 is adapted to include a first gear and a second gear. Since the speed ratios of the first gear and the second gear are different, the power transmitted through the first transmission device 300 can achieve a high-speed ratio output or a low-speed ratio output, so that the output of the hybrid power system 10 can meet the driving requirements of the vehicle, thereby improving the performance of the hybrid power system 10.

[0043] According to the hybrid system 10 of the present invention, by providing a shifting device 900 within the hybrid system 10, and by providing a first gear position and a second gear position within the shifting device 900, the power transmitted by the first transmission device 300 can form different transmission speed ratios to meet the driving requirements of the vehicle, thereby improving the performance of the hybrid system 10. Furthermore, by providing a disconnection and coupling device 600 within the hybrid system 10, the disconnection and coupling device 600 can be controlled to disconnect and engage, thereby allowing power to be selectively transmitted to the drive coupling device 500 for output after coupling as required, or directly transmitted to the front and rear axles for output as required, thereby providing the hybrid system 10 with multiple output modes, allowing the vehicle to select different power output modes as required during driving, and providing higher output performance after coupling, thereby improving the vehicle's driving performance.

[0044] In some embodiments, the shift device 900 includes: a shift sun gear 910, a shift planetary carrier 920, a shift ring gear 930, a synchronizer 940 and a shift transmission shaft 950. The shift sun gear 910 is arranged at the output end of the first transmission device 300; the shift planetary carrier 920 is arranged on the outside of the shift planetary gear, and the shift planetary gear is engaged with the shift sun gear 910; the shift ring gear 930 is engaged with the shift planetary gear, and the shift ring gear 930 is braked by the transmission housing; a synchronizer 940 is fixedly provided on the shift transmission shaft 950, and the synchronizer 940 can make the shift transmission shaft 950 and the shift sun gear 910 transmission connected or make the shift transmission shaft 950 and the shift planetary carrier 920 transmission connected, so as to construct the shift device to be in one of the first gear and the second gear, and the drive coupling device 500 is connected to the free end of the shift transmission shaft 950. That is, during use of the shifting device 900, which includes a shifting sun gear 910, a shifting planetary carrier 920, a shifting ring gear 930, a synchronizer 940, and a shifting transmission shaft 950, the planetary gears are used for power transmission, and the planetary gears have a wide range of adjustment for transmission speed ratios, so that the driving force transmitted to the drive coupling device 500 can meet the output requirements of the hybrid drive system, thereby improving the performance of the hybrid system 10. Specifically, after the power of the first transmission device 300 is transmitted to the shifting sun gear 910, the synchronizer 940 is controlled to determine the gear position. For example, when a high speed ratio is required, the first gear position is used, while when a low speed ratio is required, the second gear position is used. The power is then transmitted through the shifting sun gear 910 and the shifting planetary carrier 920 to the shifting transmission shaft 950 for transmission and subsequent use.

[0045] In some embodiments, the hybrid system 10 further includes: a torque distribution device 960 and a mechanical lock 970, and the torque distribution device 960 and / or the mechanical lock 970 are arranged between the output end of the first transmission device 300 and the drive coupling device 500. It is understandable that during the use of the hybrid system 10, it is also suitable to connect one of the torque distribution device 960 and the mechanical lock 970, or to connect the torque distribution device 960 and the mechanical lock 970 in sequence. The torque distribution device 960 is suitable for distributing torque to achieve different torque distribution conditions by controlling the disconnection and connection of the torque distribution device 960. The torque distribution device 960 can preferably be a multi-plate clutch, one end of which is connected to the output end of the first transmission device 300, and the other end is connected to the drive coupling device 500. The multi-plate clutch has three states during operation: disconnection, sliding film and connection. When the multi-plate clutch is disengaged, the power between the first transmission device 300 and the drive coupling device 500 is completely disconnected, allowing the vehicle to operate in two-wheel drive mode. When the multi-plate clutch is in the sliding state, the power of the first transmission device 300 or the second transmission device 400 can be distributed as needed to meet the different requirements of the vehicle's front and rear axles, allowing the vehicle to operate in four-wheel drive mode. When the multi-plate clutch is engaged, the first transmission device 300 and the second transmission device 400 are power-coupled, suitable for four-wheel drive mode. The mechanical lock 970 is configured to securely connect the output end of the first transmission device 300 and the drive coupling device 500 to ensure that the power transmitted by the mechanical lock 970 can be coupled to the drive coupling device 500 for operation. In actual design, at least one of the torque distribution device 960 and the mechanical lock 970 can be selectively used to meet the design requirements of the hybrid system 10. Integrating both the torque distribution device 960 and the mechanical lock 970 within the hybrid system 10 improves the performance of the hybrid system 10.

[0046] In some embodiments, the disconnection and coupling device 600 includes: a first connection part and a second connection part, the first connection part is connected to the drive coupling device 500; the second connection part is arranged at the output end of the second transmission device 400, and the first connection part and the second connection part are selectively connected in transmission.

[0047] Specifically, the disconnecting and coupling device 600 can disconnect or couple power as needed, allowing the hybrid system 10 to reduce unnecessary power losses in different modes and improve the vehicle's driving performance. For example, when the hybrid system 10 only requires the first or second transmission device to operate, that is, when the vehicle is in front-axle two-wheel drive mode or rear-axle two-wheel drive mode, the disconnecting and coupling device 600 can be selectively disconnected to reduce drag on the front or rear axle by the rear axle wheel end or the front axle wheel end, and reduce wear on the drive coupling device 500. Furthermore, the selective disconnecting and coupling of the disconnecting and coupling device 600 ensures more reliable performance and a longer service life to meet the needs of the vehicle.

[0048] Moreover, the disconnection coupling device 600 includes: a first connection part and a second connection part, the first connection part is suitable for being correspondingly arranged on the drive coupling device 500, and the second connection part is selectively connected to the first connection part so that the power transmitted to the second connection part is suitable for being transmitted to the drive coupling device 500 through the transmission connection for coupling, so as to constitute different power output modes of the subsequent hybrid power system 10.

[0049] In some embodiments, the drive coupling device 500 includes a first coupling portion 510 and a second coupling portion 520. The first coupling portion 510 is disposed at the output end of the first transmission device 300; the second coupling portion 520 is disposed at the output end of the second transmission device 400. The first coupling portion 510 and the second coupling portion 520 engage and transmit power. In other words, the drive coupling device 500 is adapted to include the first coupling portion 510 and the second coupling portion 520. The power transmitted to the first coupling portion 510 via the first transmission device 300 is adapted to be coupled with the power transmitted to the second coupling portion 520 via the second transmission device 400. This allows the front axle power unit 100 to be coupled with the power of the first electric motor 200 when the hybrid system 10 is required to provide a greater power output, thereby coupling the power output of the hybrid system 10 to achieve a greater power output to meet the vehicle's needs.

[0050] In some specific embodiments, the first coupling portion 510 and the second coupling portion 520 are both spiral bevel gears, and the first coupling portion 510 and the second coupling portion 520 are coupled perpendicularly to each other. It is understood that by configuring the first coupling portion 510 and the second coupling portion 520 as spiral bevel gears, the first coupling portion 510 and the second coupling portion 520 can have more reliable performance during the coupling process, and can more reliably couple power, thereby allowing the hybrid system 10 to have higher power output to meet driving needs.

[0051] In some embodiments, the first transmission device 300 includes: a planetary transmission assembly 310, a first transmission shaft 320, a plurality of gear members 330 and a second transmission shaft 340, the planetary transmission assembly 310 is respectively connected to the output ends of the engine 120 and the second motor 110, the first transmission shaft 320 is connected to the planetary transmission assembly 310, and at least part of the gear part is arranged on the first transmission shaft 320; the second transmission shaft 340 and the first transmission shaft 320 are arranged in parallel at intervals, at least another part of the gear members 330 are arranged on the second transmission shaft 340, and the output end of the second transmission shaft 340 is connected to the drive coupling device 500.

[0052] That is to say, in the specific use process, the first transmission device 300 is suitable for including a planetary transmission assembly 310, a first transmission shaft 320, a plurality of gear members 330 and a second transmission shaft 340, and the power of the engine 120 and / or the second electric motor 110 is suitable for being transmitted to the planetary transmission assembly 310, and the engine 120 and / or the second electric motor 110 are selectively allowed to output power so that the power is integrated on the planetary transmission assembly 310, and then the integrated power of the planetary transmission assembly 310 is transmitted to the first transmission shaft 320, and is transmitted through one of the plurality of gear members 330 to transmit the power to the second transmission shaft 340, and then the power is suitable for being transmitted to the front axle, so that the front axle equipped with the first transmission device 300 can realize the engine direct drive mode, pure electric mode, ECVT mode and hybrid mode, or the front axle power is transmitted to the drive coupling device 500 and power-coupled with the rear axle equipped with the second transmission device 400, so as to realize different power output modes of the hybrid system 10, such as pure electric four-wheel drive and hybrid four-wheel drive. Especially when the vehicle is in the feeding state, since the front axle has the ECVT mode, the front axle can generate electricity while driving, provide electrical energy for the first electric motor 200, and perform the hybrid four-wheel drive power output mode.

[0053] In some embodiments, multiple gear components 330 include: a first gear portion 331, a second gear portion 332 and a first synchronizer 335, the first gear portion 331 includes two first gears 3311 that are meshed with each other, one first gear 3311 is provided on the first transmission shaft 320, and the other first gear 3311 is provided on the second transmission shaft 340; the second gear portion 332 includes two second gears 3321 that are meshed with each other, one second gear 3321 is provided on the first transmission shaft 320, and the other second gear 3321 is provided on the second transmission shaft 340; the first synchronizer 335 selectively controls the second gear portion 332 for combined use.

[0054] Specifically, the plurality of shift members 330 may include a first shift portion 331, a second shift portion 332, and a first synchronizer 335. The first shift portion 331 and the second shift portion 332 are adapted to be connected between the first transmission shaft 320 and the second transmission shaft 340 to achieve power transmission between the first transmission shaft 320 and the second transmission shaft 340. Since the first shift portion 331 and the second shift portion 332 have different transmission speed ratios, the first shift portion 331 and the second shift portion 332 can achieve power transmission in different gears, thereby allowing the power transmitted by the first transmission device 300 to have different output torques to meet output requirements. During the selection and use of different gears, the first synchronizer 335 and the second synchronizer 336 may be selectively selected for use. By selecting the use of the first synchronizer 335 and the second synchronizer 336, different gears can be selected, thereby achieving different power output modes of the first transmission device 300.

[0055] In some embodiments, the multiple gear components 330 also include: a third gear portion 333 and a second synchronizer 336, the third gear portion 333 includes three third gears 3331 meshed in sequence, one third gear 3331 is provided on the first transmission shaft 320, one third gear 3331 is provided on the second transmission shaft 340, and another third gear 3331 is meshed and connected between the other two third gears 3331, and the transmission direction of the third gear portion 333 is different from that of the first gear portion 331 and the second gear portion 332; the second synchronizer 336 and the first synchronizer 335 are arranged at intervals, and the second synchronizer 336 selectively controls the third gear portion 333 for combined use.

[0056] That is, by providing a third gear portion 333 between the first transmission shaft 320 and the second transmission shaft 340, the third gear portion 333 is adapted to shift in the opposite direction of the first gear portion 331 and the second gear portion 332, thereby achieving reverse power output for the first transmission device. In some embodiments, the front axle powertrain 100 includes an engine 120 and a second electric motor 110, which are coaxially arranged. The second electric motor 110 selectively provides power or generates electricity. That is, the front axle powertrain 100 has two power output terminals, namely the engine 120 and the second electric motor 110. When the engine 120 has sufficient power output or the battery needs to be supplemented, the engine 120 can divert some power to the second electric motor 110, allowing the power to be transferred to the second electric motor 110 for generating electricity, thereby charging the battery. When the power is sufficient for pure electric drive, the second electric motor 110 can provide power to the first transmission device 300, which then outputs the power to the front axle or couples it to the rear axle to meet the vehicle's propulsion needs.

[0057] In some embodiments, the second transmission device 400 includes: a reduction gear pair 410, a third transmission shaft 420, a fourth transmission shaft 430, a fifth gear portion 440, a sixth gear portion 450 and a third synchronizer 460, the reduction gear pair 410 includes a first reduction gear 4101 and a second reduction gear 4102, the first reduction gear 4101 and the second reduction gear 4102 are meshed for transmission; the first reduction gear 4101 is provided on the output shaft of the first motor 200; the third transmission shaft 420 is provided in parallel with the output shaft of the first motor 200, the second reduction gear 4102 is provided on the third transmission shaft 420, the fourth transmission shaft 430 and The third transmission shaft 420 is arranged in parallel; the fifth gear portion 440 includes two fifth gears 4401 meshing with each other, one fifth gear 4401 is arranged on the third transmission shaft 420, and the other second gear 3321 is arranged on the fourth transmission shaft 430; the sixth gear portion 450 is arranged at an interval with the fifth gear portion 440, and the sixth gear portion 450 includes two sixth gears 4501 meshing with each other, one sixth gear 4501 is arranged on the third transmission shaft 420, and the other sixth gear 4501 is arranged on the fourth transmission shaft 430; the third synchronizer 460 selectively controls the fifth gear portion 440 and the sixth gear portion 450 to be used in combination. That is to say, the second transmission device 400 is suitable for including: a reduction gear pair 410, a third transmission shaft 420, a fourth transmission shaft 430, a fifth gear part 440, a sixth gear part 450 and a third synchronizer 460. Similar to the first transmission device 300, the power provided by the first motor 200 is suitable for being transmitted to the reduction gear pair 410 for deceleration, and the decelerated power is transmitted to the third transmission shaft 420, and is transmitted through one of the fifth gear part 440 and the sixth gear part 450 to be transmitted to the fourth transmission shaft 430, and then transmitted to the fourth transmission shaft 430, and finally transmitted to the drive coupling device 500 for power coupling, or directly acts on the rear axle for output.

[0058] In some embodiments, the hybrid system 10 further includes a first differential 810 and a second differential 820. The first differential 810 is connected to the output end of the first transmission device 300 and is in driving connection with the front axle; the second differential 820 is connected to the output end of the second transmission device 400 and is in driving connection with the rear axle. In other words, when the hybrid system 10 outputs power, the power can be transmitted to the front axle through the first differential 810, or to the rear axle through the second differential 820. Alternatively, the power can be transmitted to the front axle and the rear axle respectively through the first differential 810 and the second differential 820, thereby forming various modes of the hybrid system 10, such as front axle two-wheel drive, rear axle two-wheel drive, front axle four-wheel drive, rear axle four-wheel drive, and front and rear axle four-wheel drive.

[0059] A vehicle according to an embodiment of the present invention includes: a hybrid power system 10 as described above. According to the vehicle according to the embodiment of the present invention, since the hybrid power system 10 as described above is provided within the vehicle, a shifting device 900 is provided within the hybrid power system 10. Since the shifting device 900 has a first gear and a second gear, the power transmitted through the first transmission device 300 can form different transmission speed ratios to meet the driving requirements of the vehicle, thereby improving the performance of the hybrid power system 10. Furthermore, since the hybrid power system 10 is provided with a disconnecting and engaging device 600, the disconnecting and engaging device 600 can be controlled to disconnect and engage, thereby allowing power to be selectively transmitted to the drive coupling device 500 for coupling and output as required, or the power can be directly transmitted to the front axle and the rear axle for output as required, so that the hybrid power system 10 has multiple output modes, allowing the vehicle to select different power output modes as required during driving, and providing higher output performance after coupling, thereby improving the driving performance of the vehicle.

[0060] Other structures and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0061] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hybrid power system, characterized in that: include: Front axle power unit; a first electric motor; a first transmission device, wherein an input end of the first transmission device is in transmission connection with an output end of the front axle power group; a second transmission device, wherein an input end of the second transmission device is drivingly connected to an output end of the first motor; a drive coupling device, one end of which is drive-connected to the output end of the first transmission device, and the other end of which is drive-connected to the output end of the second transmission device, the drive coupling device being configured to couple the driving force of the front axle power group with the driving force of the first electric motor; a disconnecting and coupling device, the disconnecting and coupling device being provided between the drive coupling device and the second transmission device, the disconnecting and coupling device selectively connecting the drive coupling device and the second transmission device; A shifting device is provided between the first transmission device and the disconnecting and coupling device, the shifting device includes a first gear and a second gear, the speed ratios of the first gear and the second gear are different, and at least one of the first gear and the second gear is engaged for transmission.

2. The hybrid power system according to claim 1, characterized in that: The shifting device comprises: a shift sun gear, the shift sun gear being provided at an output end of the first transmission device; a shift planet carrier, the shift planet carrier being arranged outside the shift planet gear, and the shift planet gear is meshed with the shift sun gear; a shift ring gear, the shift ring gear being meshed with the shift planetary gear and being braked; A shift transmission shaft, on which a synchronizer is fixed, which selectively connects the shift transmission shaft with the shift sun gear and the shift planetary carrier to construct one of the first gear and the second gear, and the drive coupling device is connected to the free end of the shift transmission shaft.

3. The hybrid power system according to claim 1, characterized in that: Also includes: A torque distribution device and / or a mechanical lock is provided between the output end of the first transmission device and the drive coupling device.

4. The hybrid power system according to claim 1, characterized in that: The disconnection and coupling device includes: a first connection portion, the first connection portion being connected to the drive coupling device; The second connecting part is provided at the output end of the second transmission device, and the first connecting part and the second connecting part are selectively connected in transmission.

5. The hybrid power system according to claim 1, characterized in that: The drive coupling device comprises: a first coupling portion, the first coupling portion being provided at an output end of the first transmission device; The second coupling part is provided at the output end of the second transmission device, and the first coupling part and the second coupling part are engaged for transmission.

6. The hybrid power system according to claim 5, characterized in that: The first coupling portion and the second coupling portion are both spiral bevel gears, and the first coupling portion and the second coupling portion are vertically coupled to each other.

7. The hybrid power system according to claim 1, characterized in that: The first transmission device comprises: A planetary transmission assembly, the planetary transmission assembly being in driving connection with an output end of the front axle power group; a first transmission shaft, the first transmission shaft being transmission-connected to the planetary transmission assembly; a plurality of shifting members, at least some of which are disposed on the first transmission shaft; A second transmission shaft is provided in parallel with the first transmission shaft, at least another portion of the shifting member is provided on the second transmission shaft, and an output end of the second transmission shaft is connected to the drive coupling device.

8. The hybrid power system according to claim 7, characterized in that: Multiple gears include: a first gear portion, the first gear portion comprising two first gears meshing with each other, one first gear being provided on the first transmission shaft, and the other first gear being provided on the second transmission shaft; a second gear portion, the second gear portion comprising two second gears meshing with each other, one second gear being provided on the first transmission shaft, and the other second gear being provided on the second transmission shaft; A first synchronizer selectively controls one of the first gear portion and the second gear portion for combined use.

9. The hybrid power system according to claim 8, characterized in that: The plurality of gears also include: a third gear portion, the third gear portion comprising three third gears meshed in sequence, one third gear being provided on the first transmission shaft, one third gear being provided on the second transmission shaft, and another third gear being meshed and connected between the other third gears; The second synchronizer is spaced apart from the first synchronizer, and the second synchronizer selectively controls the third gear portion for use in combination.

10. The hybrid power system according to claim 1, characterized in that: The front axle power group includes: an engine and a second electric motor, the engine and the second electric motor are coaxially arranged, and the second electric motor selectively provides power or generates electricity.

11. The hybrid power system according to claim 1, characterized in that: The second transmission device comprises: A reduction gear pair, the reduction gear pair comprising a first reduction gear and a second reduction gear, the first reduction gear and the second reduction gear being engaged for transmission; the first reduction gear being disposed on an output shaft of the first motor; a third transmission shaft, the third transmission shaft being arranged parallel to the output shaft of the first motor, and the second reduction gear being arranged on the third transmission shaft; a fourth transmission shaft, the fourth transmission shaft being arranged in parallel with the third transmission shaft; a fifth gear portion, the fifth gear portion comprising two fifth gears meshing with each other, one of the fifth gears being disposed on the third transmission shaft, and the other fifth gear being disposed on the fourth transmission shaft; a sixth gear portion, the sixth gear portion being spaced apart from the fifth gear portion, the sixth gear portion comprising two sixth gears meshing with each other, one of the sixth gears being disposed on the third transmission shaft, and the other being disposed on the fourth transmission shaft; A third synchronizer selectively controls one of the fifth gear portion and the sixth gear portion for combined use.

12. The hybrid power system according to claim 1, characterized in that: Also includes: A first differential, the first differential being connected to an output end of the first transmission device, and the first differential being transmission-connected to the front axle; A second differential is connected to the output end of the second transmission device, and the second differential is connected to the rear axle transmission.

13. A vehicle, characterized in that: include: The hybrid power system according to any one of claims 1 to 12.

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