Hybrid power system and vehicle

Abstract

The utility model discloses a hybrid power system and a vehicle, and the hybrid power system comprises a driving motor which is connected with a first power input shaft; the engine is connected with a second power input shaft, and the first power input shaft and the second power input shaft are selectively connected; the first planetary gear assembly comprises a first sun gear, a first planet gear, a first planet carrier and a first gear ring, and the first gear ring is connected with the first power input shaft; a transmission housing selectively engaged with the first planet carrier; the power output shafts comprise the first power output shaft and the second power output shaft, the first power output shaft and the second power output shaft are in transmission connection with the first power input shaft, and the first power output shaft and the second power output shaft are selectively locked and fixed. In this way, the hybrid power system can integrate the speed reduction function, the differential function and the locking function, and therefore the applicability of the hybrid power system can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a hybrid system and a vehicle. Background Art

[0002] At present, the hybrid power transmission system in the domestic market is generally divided into three forms: series, parallel, and series-parallel hybrid. The advantages of hybrid vehicles are that they improve power economy while saving energy and protecting the environment. The power mode switching of existing hybrid vehicles is mainly achieved through the transmission structure. In addition, the differential system of hybrid vehicles uses the differential of traditional fuel vehicles to achieve differential functions.

[0003] In the existing technology, some products add a locking function based on the differential to suit off-road escape situations. Some products eliminate the differential and use two planetary gears instead. After eliminating the traditional differential, the transmission system of the hybrid vehicle lacks a differential system with integrated deceleration, differential half-axle locking and other functions. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hybrid system which can integrate deceleration, differential and locking functions.

[0005] The utility model further provides a vehicle.

[0006] The hybrid system according to the embodiment of the utility model includes: a drive motor, the drive motor is connected to a first power input shaft; an engine, the engine is connected to a second power input shaft, the first power input shaft and the second power input shaft are selectively engaged; a first planetary gear assembly, the first planetary gear assembly includes a first sun gear, a first planetary gear, a first planetary carrier and a first ring gear, the first planetary gear is meshed between the first sun gear and the first ring gear, the first planetary carrier is connected to the first planetary gear, the second power input shaft is connected to the first sun gear, and the first ring gear is connected to the first power input shaft; a transmission housing, the transmission housing is selectively engaged with the first planetary carrier. A power output shaft, the power output shaft includes a first power output shaft and a second power output shaft, the first power output shaft and the second power output shaft are respectively connected to the first power input shaft, and the first power output shaft and the second power output shaft are selectively locked and fixed.

[0007] Thus, by selectively engaging the first power input shaft and the second power input shaft in the hybrid system, the hybrid system can selectively operate in a hybrid drive mode. The first planetary gear assembly is provided, and the first power input shaft is connected to the first ring gear, and the second power input shaft is connected to the first sun gear, so that the power can be decelerated in the hybrid system to operate in different driving conditions. In addition, the first power output shaft and the second power input shaft are selectively locked and fixed, so that the hybrid system can integrate deceleration, differential and locking functions, thereby improving the applicability of the hybrid system.

[0008] According to some embodiments of the present invention, the hybrid system further includes a locking device, which is disposed between the first power output shaft and the second power output shaft, and the locking device is selectively locked to lock the second power output shaft to the first power output shaft.

[0009] According to some embodiments of the present invention, the hybrid system further includes a first clutch, which is disposed on one of the first power input shaft and the second power input shaft, and the first clutch is selectively engaged with the other of the first power input shaft and the second power input shaft.

[0010] According to some embodiments of the present invention, the hybrid system further includes a second clutch, which is disposed on one of the transmission housing and the first planetary carrier, and the second clutch is selectively engaged with the other of the transmission housing and the first planetary carrier.

[0011] According to some embodiments of the present invention, there are multiple first planetary gears, and the multiple first planetary gears form a planetary gear set. The planetary gear set includes multiple first planetary gears arranged circumferentially at intervals outside the first sun gear. There are multiple planetary gear sets, and the multiple planetary gear sets are concentrically arranged and radially arranged, and two adjacent planetary gear sets are meshed with each other.

[0012] According to some embodiments of the present invention, the hybrid system also includes a second planetary gear assembly, the second planetary gear assembly includes a second sun gear, a second planetary gear, a second planet carrier and a second ring gear, the second planetary gear is meshed between the second sun gear and the second ring gear, the second planet carrier is connected to the second planetary gear, the second sun gear is connected to the first power input shaft, the second ring gear is drivingly connected to the first power output shaft, and the second planet carrier is drivingly connected to the second power output shaft.

[0013] According to some embodiments of the present utility model, the hybrid system also includes a first transmission gear set, the first transmission gear set includes a first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear, the first transmission gear is arranged on the second ring gear, the fourth transmission gear is arranged on the second power output shaft, the second transmission gear is meshed with the first transmission gear, and the third transmission gear is meshed between the second transmission gear and the fourth transmission gear.

[0014] According to some embodiments of the present utility model, the hybrid system also includes a second transmission gear set, the second transmission gear set includes a fifth transmission gear, a sixth transmission gear and a seventh transmission gear, the fifth transmission gear is arranged on the second planetary carrier, the seventh transmission gear is arranged on the second power output shaft, and the sixth transmission gear is meshed between the fifth transmission gear and the seventh transmission gear.

[0015] According to some embodiments of the present invention, there are multiple second planetary gears, and the multiple second planetary gears form a planetary gear set. The planetary gear set includes multiple second planetary gears that are circumferentially spaced apart on the outer sides of the two sun gears, and there is one planetary gear set.

[0016] The vehicle according to the present utility model comprises the hybrid system described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a hybrid system according to an embodiment of the utility model;

[0020] Figure 2 is a schematic diagram of a hybrid system according to other embodiments of the utility model;

[0021] Figure 3 is a schematic diagram of a hybrid system according to other embodiments of the utility model;

[0022] Figure 4 is a schematic diagram of a hybrid system according to other embodiments of the utility model;

[0023] Figure 5 is a schematic diagram of a hybrid system according to other embodiments of the utility model;

[0024] Figure 6 is a schematic diagram of a hybrid system according to other embodiments of the utility model;

[0025] Figure 7 Schematic diagram of a hybrid system according to some further embodiments of the present utility model.

[0026] Reference numerals:

[0027] 100. Hybrid system;

[0028] 1. driving motor; 101. first power input shaft;

[0029] 2. Engine; 201. Second power input shaft;

[0030] 3. Power output shaft; 301. First power output shaft; 302. Second power output shaft;

[0031] 4. First planetary gear assembly; 401. First sun gear; 402. First planetary gear; 403. First planet carrier; 404. First ring gear;

[0032] 5. Transmission housing; 6. First clutch; 7. Second clutch;

[0033] 8. Second planetary gear assembly; 801. Second sun gear; 802. Second planetary gear; 803. Second planet carrier; 804. Second ring gear;

[0034] 9. Locking device;

[0035] 10. First transmission gear set; 1001. First transmission gear; 1002. Second transmission gear; 1003. Third transmission gear; 1004. Fourth transmission gear;

[0036] 11. Second transmission gear set; 1101. Fifth transmission gear; 1102. Sixth transmission gear; 1103. Seventh transmission gear;

[0037] 12. Eighth transmission gear; 13. Third clutch; 14. Fourth clutch;

[0038] 15. The third transmission gear set; 1501. The ninth transmission gear; 1502. The tenth transmission gear; 1503. The eleventh transmission gear; 1504. The twelfth transmission gear. DETAILED DESCRIPTION

[0039] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0040] See the figure below for reference Figure 1A hybrid system 100 according to an embodiment of the present invention is described. The hybrid system 100 may be applied to a vehicle.

[0041] Combination Figure 1 As shown, the hybrid system 100 according to the embodiment of the utility model can mainly include: a drive motor 1, an engine 2, a first planetary gear assembly 4, a transmission housing 5 and a power output shaft 3, wherein the drive motor 1 is connected to a first power input shaft 101, and the engine 2 is connected to a second power input shaft 201, so that the output power of the drive motor 1 can be transmitted through the first power input shaft 101, and the output power of the engine 2 can be transmitted through the second power input shaft 201.

[0042] Furthermore, the first power input shaft 101 and the second power input shaft 201 are selectively engaged. When the first power input shaft 101 and the second power input shaft 201 are engaged, the output power of the drive motor 1 and the output power of the engine 2 are coupled and can be transmitted to the power output shaft 3 to realize the hybrid mode of the vehicle. When the first power input shaft 101 and the second power input shaft 201 are disconnected, the output power of the drive motor 1 and the output power of the engine 2 are decoupled, so that the drive motor 1 can be driven alone, or the engine 2 can be driven alone, so as to be suitable for different operating conditions of the vehicle.

[0043] Furthermore, if the battery power in the vehicle is low or exhausted when the drive motor 1 is driven in one direction, the engine 2 can be used to power the battery, or directly switched to the engine 2 to ensure the normal driving of the vehicle. In addition, when the vehicle has sufficient endurance, only the drive motor 1 can be used for driving, and the engine 2 is not working, which not only saves fuel but also helps protect the environment.

[0044] Further, the first planetary gear assembly 4 includes a first sun gear 401, a first planetary gear 402, a first planetary carrier 403 and a first ring gear 404. The first planetary gear 402 is meshed between the first sun gear 401 and the first ring gear 404, so that power can be transmitted between the first sun gear 401 and the first ring gear 404. The first planetary carrier 403 is connected to the first planetary gear 402. When the first planetary gear 402 rotates around the first sun gear 401, the first planetary carrier 403 can be driven to rotate. Similarly, when the first planetary carrier 403 rotates, the first planetary gear 402 can be driven to rotate around the first sun gear 401.

[0045] Furthermore, the second power input shaft 201 is connected to the first sun gear 401, so that the engine 2 can drive the first sun gear 401 to rotate through the second power input shaft 201, and the output power of the engine 2 can enter the first planetary gear assembly 4 for transmission. The first ring gear 404 is connected to the first power input shaft 101, so that the drive motor 1 can drive the first ring gear 404 to rotate through the first power input shaft 101, and the output power of the drive motor 1 can enter the first planetary gear assembly 4 for transmission through the first ring gear 404. In this way, the output speed and torque of the engine 2 can be changed through the first planetary gear assembly 4, and the output speed and torque of the drive motor 1 can be changed through the first planetary gear assembly 4. The power output shaft 3 outputs the speed and torque after the speed change to the wheels, and then the speed of the wheels can be adjusted, and the torque of the power output shaft 3 can be adjusted, so that multiple gear modes of the vehicle can be realized.

[0046] Furthermore, the transmission housing 5 is selectively engaged with the first planetary carrier 403. When the first planetary carrier 403 is engaged with the transmission housing 5, the first planetary carrier 403 does not rotate. At this time, the first planetary gear 402 does not rotate around the first sun gear 401. The first sun gear 401 drives the first planetary gear 402 to rotate and transmits power to the first ring gear 404, so that the size of the power and the rotation speed can be changed.

[0047] Furthermore, when the first planetary carrier 403 is disconnected from the transmission housing 5, the first planetary carrier 403 can rotate, and the first planetary gear 402 can rotate around the first sun gear 401. In this way, the power transmission path in the first planetary gear assembly 4 can be changed, and then the power size and speed can be changed to adjust the output speed and torque of the hybrid system 100, so that the vehicle can run in a multi-gear mode.

[0048] Furthermore, the power output shaft 3 includes a first power output shaft 301 and a second power output shaft 302. The power output shaft 3 of the hybrid system 100 is divided into the first power output shaft 301 and the second power output shaft 302, and are respectively connected to the wheel hub bearings on both sides of the vehicle. The first power output shaft 301 and the second power output shaft 302 are respectively connected to the first power input shaft 101, so that the output power of the hybrid system 100 can be transmitted to both sides of the vehicle respectively to drive the wheels on both sides of the vehicle to rotate at the same time.

[0049] Furthermore, the first power output shaft 301 and the second power output shaft 302 can be selectively locked and fixed. When the first power output shaft 301 and the second power output shaft 302 are locked and fixed, the two ends of the power output shaft 3 can rotate at the same speed, and the torque on the power output shaft 3 can be increased, which helps the vehicle to quickly get out of trouble under special circumstances. When the first power output shaft 301 and the second power output shaft 302 are unlocked, the first power output shaft 301 and the second power output shaft 302 can be rotated at a differential speed, so that the driving stability of the vehicle can be guaranteed when the vehicle turns and travels at high speed.

[0050] Thus, by arranging the first power input shaft 101 and the second power input shaft in the hybrid system 100 to selectively engage, the hybrid system 100 can selectively operate the hybrid drive mode. The first planetary gear assembly 4 is arranged, and the first power input shaft 101 is connected to the first ring gear 404, and the second power input shaft 201 is connected to the first sun gear 401, so that the power can be decelerated in the hybrid system 100 to operate different driving conditions. In addition, the first power output shaft 301 and the second power input shaft 201 are selectively locked and fixed, so that the hybrid system 100 can integrate the deceleration, differential and locking functions, thereby improving the applicability of the hybrid system 100.

[0051] Combination Figure 1 As shown, the hybrid system 100 also includes a locking device 9, which is arranged between the first power output shaft 301 and the second power output shaft 302. The locking device 9 is selectively locked, so that the second power output shaft 302 can be locked and connected with the first power output shaft 301. When the locking device 9 is locked, the first power output shaft 301 and the second power output shaft 302 are locked and fixed, and the first power output shaft 301 and the second power output shaft 302 rotate synchronously at this time, and the torque on the power output shaft 3 increases, which helps the vehicle to get out of trouble. When the locking device 9 is unlocked, the first power output shaft 301 and the second power output shaft 302 are disconnected, and the first power output shaft 301 and the second power output shaft 302 can rotate differentially, which is conducive to improving the stability of the vehicle when turning and driving at high speed.

[0052] Combination Figure 1As shown, the hybrid system 100 further includes a first clutch 6, which is disposed on one of the first power input shaft 101 and the second power input shaft 201, and the first clutch 6 is selectively engaged with the other of the first power input shaft 101 and the second power input shaft 201. Specifically, the first clutch 6 can control the first power input shaft 101 and the second power input shaft 201 to selectively engage. When the first clutch 6 is disposed on one of the first power input shaft 101 and the second power input shaft 201, and is engaged with the other, the power of the engine 2 can be directly transmitted to the first power input shaft 101 through the second power input shaft 201, and the output power of the engine 2 is coupled with the output power of the drive motor 1, and can then be transmitted to the power output shaft 3 to realize the hybrid mode of the vehicle.

[0053] When the first clutch 6 is arranged on one of the first power input shaft 101 and the second power input shaft 201 and is not engaged with the other, the second power input shaft 201 is disconnected from the first power input shaft 101, and the output power of the drive motor 1 and the output power of the engine 2 are decoupled, so that the drive motor 1 can be driven alone, or the engine 2 can be driven alone, so that the hybrid system 100 of the present invention is suitable for different operating conditions of the vehicle.

[0054] Combination Figure 1 As shown, the hybrid system 100 further includes a second clutch 7, which is disposed on one of the transmission housing 5 and the first planetary carrier 403, and the second clutch 7 is selectively engaged with the other of the transmission housing 5 and the first planetary carrier 403. Specifically, the second clutch 7 can control the first planetary carrier 403 to selectively engage with the transmission housing 5. When the second clutch 7 is disposed on one of the transmission housing 5 and the first planetary carrier 403 and is engaged with the other, the first planetary carrier 403 is fixedly connected with the transmission housing 5, so that the first planetary carrier 403 does not rotate. At this time, when the output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201, the first sun gear 401 drives the first planetary gear 402 to rotate, and then drives the first ring gear 404 to rotate, and the first ring gear 404 can transmit power to the first power input shaft 101 to transmit to the power output shaft 3.

[0055] Further, when the second clutch 7 is disposed on one of the transmission housing 5 and the first planetary carrier 403 and is disengaged from the other, the first planetary carrier 403 can rotate, so that the first planetary gear 402 can revolve around the first sun gear 401, and the first planetary carrier 403 can rotate.

[0056] Combination Figure 1As shown, there are multiple first planetary gears 402, and the multiple first planetary gears 402 form a planetary gear set, and the planetary gear set includes multiple first planetary gears 402 arranged circumferentially at intervals outside the first sun gear 401. Specifically, multiple first planetary gears 402 are arranged circumferentially at intervals outside the first sun gear 401 to form a planetary gear set, which can provide reliable support for the first ring gear 404, improve the transmission stability between the first sun gear 401 and the first ring gear 404, and ensure the structural reliability of the first planetary gear assembly 4.

[0057] Furthermore, there are multiple planetary gear sets, which are concentrically arranged and radially arranged, and two adjacent planetary gear sets are meshed with each other. With such an arrangement, on the one hand, the multiple planetary gear sets can cooperate with each other to realize the transmission between the first sun gear 401 and the first ring gear 404. On the other hand, the number of planetary gear sets can be set according to the design requirements of the vehicle. Increasing the number of planetary gear sets can adjust the transmission ratio in the first planetary gear assembly 4 to change the output speed and torque of the hybrid system 100, thereby helping to realize the operation of the vehicle in a multi-gear mode.

[0058] Combination Figure 1 As shown, the hybrid system 100 also includes a second planetary gear assembly 8, which includes a second sun gear 801, a second planetary gear 802, a second planet carrier 803 and a second ring gear 804, the second planetary gear 802 is meshed between the second sun gear 801 and the second ring gear 804, the second planetary gear 803 is connected to the second planetary gear 802, and the second planetary gear 803 and the second ring gear 804 are both connected to the power output shaft 3.

[0059] Specifically, in the embodiment of the present invention, adding the second planetary gear assembly 8 can further change the output power of the drive motor 1 and the speed and torque of the output power of the engine 2, so that the power size and speed transmitted to the power output shaft 3 in the hybrid system 100 are appropriate, which is suitable for driving the wheels to rotate at different speeds in different gears, and can enable the hybrid drive vehicle to achieve operation in multiple gear modes.

[0060] Furthermore, the second sun gear 801 is connected to the first power input shaft 101, so that the output power of the drive motor 1 can be transmitted to the second sun gear 801 through the first power input shaft 101, and then the speed and torque are changed through the second planetary gear assembly 8, and then transmitted to the power output shaft 3. When the first clutch 6 is engaged, the output power of the engine 2 can be transmitted to the first power input shaft 101 through the second power input shaft 201, and then enter the second planetary gear assembly 8 through the second sun gear 801 to change the speed and torque of the output power of the engine 2.

[0061] Furthermore, the second ring gear 804 is transmission-connected to the first power output shaft 301, and the second planetary carrier 803 is transmission-connected to the second power output shaft 302. This can make the rotation speed on the first power output shaft 301 inconsistent with the rotation speed of the second power output shaft 302, so that the vehicle equipped with the hybrid system 100 can achieve differential driving, which is beneficial to improving the stability of the vehicle in cornering and high-speed driving.

[0062] Combination Figure 1 As shown, the hybrid system 100 also includes a first transmission gear set 10, and the first transmission gear set 10 includes a first transmission gear 1001, a second transmission gear 1002, a third transmission gear 1003 and a fourth transmission gear 1004. The first transmission gear 1001 is arranged on the second ring gear 804, and the fourth transmission gear 1004 is arranged on the second power output shaft 302. The second transmission gear 1002 is meshed with the first transmission gear 1001, and the third transmission gear 1003 is meshed between the second transmission gear 1002 and the fourth transmission gear 1004.

[0063] Specifically, the second gear ring 804 can drive the first transmission gear 1001 to rotate synchronously, the first transmission gear 1001 drives the second transmission gear 1002 to rotate, the second transmission gear 1002 drives the third transmission gear 1003 to rotate, and the third transmission gear 1003 drives the fourth transmission gear 1004 to rotate, so that the power on the second gear ring 804 can be transmitted to the first power output shaft 301 to drive the first power output shaft 301 to rotate. The first transmission gear set 10 is provided with multiple gear meshing transmissions, which can further change the speed and torque of the power in the hybrid system 100, so as to adjust the power transmitted to the first power output shaft 301 to a suitable speed and torque output.

[0064] Combination Figure 1 As shown, the hybrid system 100 also includes a second transmission gear set 11, the second transmission gear set 11, the second transmission gear set 11 includes a fifth transmission gear 1101, a sixth transmission gear 1102 and a seventh transmission gear 1103, the fifth transmission gear 1101 is arranged on the second planetary carrier 803, the seventh transmission gear 1103 is arranged on the second power output shaft 302, and the sixth transmission gear 1102 is meshed between the fifth transmission gear 1101 and the seventh transmission gear 1103.

[0065] Specifically, the second planetary carrier 803 can drive the fifth transmission gear 1101 to rotate, the fifth transmission gear 1101 can drive the sixth transmission gear 1102 to rotate, and the sixth transmission gear 1102 can drive the seventh transmission gear 1103 to rotate, so that the power on the second planetary carrier 803 can be transmitted to the second power output shaft 302 to drive the second power output shaft 302 to rotate. The second transmission gear set 11 is provided with a plurality of gear meshing transmissions, which can further change the speed and torque of the power in the hybrid system 100, so as to adjust the power transmitted to the second power output shaft 302 to a suitable speed and torque output.

[0066] In this way, the first transmission gear set 10 is respectively arranged to be transmission-connected with the first power output shaft 301, and the second transmission gear set 11 is transmission-connected with the second power output shaft 302, so that when the locking device 9 is unlocked, the first power output shaft 301 and the second power output shaft 302 can rotate differentially, thereby enabling the vehicle equipped with the hybrid system 100 of the utility model to achieve differential driving.

[0067] Combination Figure 1 As shown, there are multiple second planetary gears 802, and the multiple second planetary gears 802 form a planetary gear set, and the planetary gear set includes multiple second planetary gears 802 arranged at intervals in the circumferential direction outside the second sun gear 801, and there is one planetary gear set. Specifically, multiple second planetary gears 802 are arranged at intervals in the circumferential direction outside the second sun gear 801 to form a planetary gear set, which can provide reliable support for the second ring gear 804, improve the transmission stability between the second sun gear 801 and the second ring gear 804, and ensure the structural reliability of the second planetary gear assembly 8.

[0068] According to an embodiment of the present utility model, the hybrid system 100 can be applied to a vehicle. In an embodiment of the present utility model, the working modes of the hybrid system 100 include but are not limited to a drive motor 1 differential mode, a drive motor 1 locking mode, an engine 2 differential mode, an engine 2 locking mode, a hybrid first gear differential mode, a hybrid first gear locking mode, a hybrid second gear differential mode, a hybrid second gear locking mode, a neutral mode, and a reverse mode. The working modes of the hybrid system 100 are described in detail below in conjunction with the figure.

[0069] When the hybrid system 100 operates in the differential mode of the drive motor 1 , the drive motor 1 is working, the engine 2 is not working, the first clutch 6 and the second clutch 7 are both disconnected, and the locking device 9 is disconnected.

[0070] In this way, the output power of the drive motor 1 is outputted outwardly through the first power input shaft 101, and the first power input shaft 101 drives the second sun gear 801 and the first ring gear 404 to rotate simultaneously. The first ring gear 404 drives the first planetary gear 402 to rotate, and then drives the first planetary carrier 403 to rotate idly.

[0071] The second sun gear 801 drives the second planetary gear 802 to rotate, and the second planetary gear 802 can respectively drive the second planetary carrier 803 and the second gear ring 804 to rotate. With this arrangement, a part of the power on the second sun gear 801 is transmitted along the direction of the second planetary gear 802-second gear ring 804-first transmission gear 1001-second transmission gear 1002-third transmission gear 1003-fourth transmission gear 1004, and the fourth transmission gear 1004 can drive the first power output shaft 301 to rotate. Another part of the power on the second sun gear 801 is transmitted along the direction of the second gear ring 804-second planetary carrier 803-fifth transmission gear 1101-sixth transmission gear 1102-seventh transmission gear 1103, and the seventh transmission gear 1103 can drive the second power output shaft 302 to rotate.

[0072] In this way, when the drive motor 1 is driven alone, the first power output shaft 301 and the second power output shaft 302 can rotate differentially, and then the hybrid system 100 can travel differentially when the drive motor 1 is driven alone, which is suitable for improving the stability of the vehicle when turning and driving at high speeds.

[0073] When the hybrid system 100 operates in the drive motor 1 locking mode, the drive motor 1 is working, the engine 2 is not working, the first clutch 6 and the second clutch 7 are both disconnected, and the locking device 9 is locked to lock and fix the first power output shaft 301 and the second power output shaft 302.

[0074] In this way, the output power of the driving motor 1 is transmitted to the second sun gear 801 through the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11. The first power output shaft 301 and the second power output shaft 302 rotate synchronously.

[0075] In this way, when the drive motor 1 is driven alone, the first power output shaft 301 and the second power output shaft 302 can rotate synchronously, which helps the vehicle to escape from trouble under special working conditions.

[0076] When the hybrid system 100 operates in the engine 2 differential mode, the drive motor 1 does not work, the engine 2 works, the first clutch 6 and the second clutch 7 are both disconnected, and the locking device 9 is disconnected.

[0077] In this way, the output power of the engine 2 is output outwardly through the second power input shaft 201, the second power input shaft 201 and the first power input shaft 101 are disconnected, and the power on the second power input shaft 201 is transmitted to the first power input shaft 101 along the direction of the first sun gear 401-first planetary gear 402-first ring gear 404, and the first planetary carrier 403 is idling at this time.

[0078] After the power of the engine 2 is transmitted to the first power input shaft 101, the second sun gear 801 rotates synchronously with the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 to rotate, and the second planetary gear 802 can respectively drive the second planetary carrier 803 and the second ring gear 804 to rotate. In this way, a part of the power on the second sun gear 801 is transmitted along the direction of the second planetary gear 802-the second ring gear 804-the first transmission gear 1001-the second transmission gear 1002-the third transmission gear 1003-the fourth transmission gear 1004, and the fourth transmission gear 1004 can drive the first power output shaft 301 to rotate. Another part of the power on the second sun gear 801 is transmitted along the direction of the second ring gear 804-the second planetary carrier 803-the fifth transmission gear 1101-the sixth transmission gear 1102-the seventh transmission gear 1103, and the seventh transmission gear 1103 can drive the second power output shaft 302 to rotate.

[0079] In this way, differential rotation of the first power output shaft 301 and the second power output shaft 302 can be achieved, and the hybrid system 100 can achieve differential driving when the engine 2 is driven alone, which is suitable for improving the stability of the vehicle when turning and driving at high speed.

[0080] When the hybrid system 100 operates in the engine 2 locking mode, the drive motor 1 does not work, the engine 2 works, the first clutch 6 and the second clutch 7 are both disconnected, and the locking device 9 is locked to lock and fix the first power output shaft 301 and the second power output shaft 302.

[0081] In this way, the output power of the engine 2 is output outwardly through the second power input shaft 201, the second power input shaft 201 and the first power input shaft 101 are disconnected, and the power on the second power input shaft 201 is transmitted to the first power input shaft 101 along the direction of the first sun gear 401-first planetary gear 402-first ring gear 404, and the first planetary carrier 403 is idling at this time.

[0082] After the power of the engine 2 is transmitted to the first power input shaft 101, the second sun gear 801 rotates synchronously with the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11. The first power output shaft 301 and the second power output shaft 302 rotate synchronously.

[0083] In this way, it is possible to achieve synchronous rotation of the first power output shaft 301 and the second power output shaft 302 when the engine 2 is driven alone, which helps the vehicle to escape from trouble under special working conditions.

[0084] When the hybrid system 100 operates in the hybrid first-gear differential mode, the first clutch 6 is disengaged, the second clutch 7 is engaged, and the locking device 9 is disengaged.

[0085] In this way, the output power of the driving motor 1 is transmitted to the second sun gear 801 through the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11.

[0086] Furthermore, the output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201. Since the first planet carrier 403 is fixed, the first sun gear 401 drives the first planetary gear 402 in the multiple planetary gear sets to rotate, and the first planetary gear 402 drives the first ring gear 404 to rotate, and the first ring gear 404 transmits power to the first power input shaft 101. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planet carrier 803 and the second transmission gear set 11.

[0087] In this working mode, the first power output shaft 301 and the second power output shaft 302 can rotate differentially to improve the stability of the vehicle when turning and driving at high speed.

[0088] When the hybrid system 100 operates in the hybrid first gear lock mode, the first clutch 6 is disengaged, the second clutch 7 is engaged, and the locking device 9 is locked.

[0089] In this way, the output power of the driving motor 1 is transmitted to the second sun gear 801 through the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11.

[0090] The output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201. Since the first planet carrier 403 is fixed, the first sun gear 401 drives the first planet gear 402 in the multiple planetary gear sets to rotate. The first planet gear 402 drives the first ring gear 404 to rotate, and the first ring gear 404 transmits power to the first power input shaft 101. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planet carrier 803 and the second transmission gear set 11.

[0091] In this working mode, the first power output shaft 301 and the second power output shaft 302 rotate synchronously and jointly output power, which can enable the vehicle to escape from trouble under special working conditions.

[0092] When the hybrid system 100 operates in the hybrid second-gear differential mode, the first clutch 6 is engaged, the second clutch 7 is disengaged, and the locking device 9 is disengaged.

[0093] In this way, the output power of the driving motor 1 is transmitted to the second sun gear 801 through the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11.

[0094] The output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201. Since the second power input shaft 201 is engaged with the first power input shaft 101, the first sun gear 401 and the first ring gear 404 in the first planetary gear assembly 4 rotate coaxially, and the first planetary gear 402 and the first planet carrier 403 both revolve around the first sun gear 401. In this way, the output power of the engine 2 can be directly transmitted to the second sun gear 801 through the first power input shaft 101, wherein a part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11.

[0095] In this working mode, the first power output shaft 301 and the second power output shaft 302 can rotate differentially to improve the stability of the vehicle when turning and driving at high speed.

[0096] When the hybrid system 100 operates in the hybrid second-gear differential mode, the first clutch 6 is engaged, the second clutch 7 is disengaged, and the locking device 9 is locked.

[0097] In this way, the output power of the driving motor 1 is transmitted to the second sun gear 801 through the first power input shaft 101, and the second sun gear 801 drives the second planetary gear 802 and the second ring gear 804 to rotate. At this time, part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planetary carrier 803 and the second transmission gear set 11.

[0098] The output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201. Since the second power input shaft 201 is engaged with the first power input shaft 101, the first sun gear 401 and the first ring gear 404 in the first planetary gear assembly 4 rotate coaxially, and the first planetary gear 402 and the first planet carrier 403 both revolve around the first sun gear 401. In this way, the output power of the engine 2 can be directly transmitted to the second sun gear 801 through the first power input shaft 101, wherein a part of the power is transmitted to the first power output shaft 301 through the second ring gear 804 and the first transmission gear set 10, and the other part of the power is transmitted to the second power output shaft 302 through the second planet carrier 803 and the second transmission gear set 11. In this working mode, the first power output shaft 301 and the second power output shaft 302 rotate synchronously and output power together, which can help the vehicle get out of trouble under special working conditions.

[0099] When the hybrid system 100 operates in neutral mode, the first clutch 6 and the second clutch 7 are both disconnected, and the drive motor 1 does not work. At this time, the first power input shaft 101 does not transmit power, and the power of the engine 2 and the drive motor 1 can be decoupled to make the vehicle operate in neutral.

[0100] When the hybrid system 100 operates in the reverse gear mode, the drive motor 1 rotates in the reverse direction, so that the vehicle can be reversed.

[0101] According to other embodiments of the present invention, the multiple planetary gear sets in the first planetary gear assembly 4 may be replaced with a single planetary gear set.

[0102] Combination Figure 2As shown, when the multiple planetary gear sets in the first planetary gear assembly 4 are replaced with a single planetary gear set, the first power input shaft 101 is connected to the first planet carrier 403, and the eighth transmission gear 12 is added to the second power input shaft 201. The first clutch 6 is arranged on one of the eighth transmission gear 12 and the first planet carrier 403, and is selectively engaged with the other. The second clutch 7 is arranged on one of the first ring gear 404 and the transmission housing 5, and is selectively engaged with the other.

[0103] In the embodiment of the present utility model, when the first clutch 6 is disconnected and the second clutch 7 is engaged, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-first sun gear 401-first planetary gear 402-first planetary carrier 403-first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the first clutch 6 is engaged and the second clutch 7 is disconnected, the output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201, and at this time, the second power input shaft 201, the eighth transmission gear 12, the first sun gear 401, the first ring gear 404 and the first planetary carrier 403 rotate synchronously and are directly transmitted to the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0104] Combination Figure 3 As shown, when the multiple planetary gear sets in the first planetary gear assembly 4 are replaced with a single planetary gear set, the first power input shaft 101 is connected to the first planet carrier 403, the eighth transmission gear 12 is added to the second power input shaft 201, and the inner gear ring of the first gear ring 404 is selectively engaged with the eighth transmission gear 12. The first clutch 6 is provided on one of the inner gear ring of the first gear ring 404 and the eighth transmission gear 12, and selectively engaged with the other. The second clutch 7 is provided on one of the first gear ring 404 and the transmission housing 5, and selectively engaged with the other.

[0105] In the embodiment of the present utility model, when the first clutch 6 is disconnected and the second clutch 7 is engaged, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-first sun gear 401-first planetary gear 402-first planetary carrier 403-first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the first clutch 6 is engaged and the second clutch 7 is disconnected, the output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201, and at this time, the second power input shaft 201, the eighth transmission gear 12, the first sun gear 401, the first ring gear 404 and the first planetary carrier 403 rotate synchronously and are directly transmitted to the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0106] Combination Figure 4 As shown, when the multiple planetary gear sets in the first planetary gear assembly 4 are replaced with a single planetary gear set, the first power input shaft 101 is connected to the first planet carrier 403, the first clutch 6 is arranged on one of the first planet carrier 403 and the first ring gear 404, and selectively engages with the other. The second clutch 7 is arranged on one of the first ring gear 404 and the transmission case 5, and selectively engages with the other.

[0107] In the embodiment of the present utility model, when the first clutch 6 is disconnected and the second clutch 7 is engaged, the first ring gear 404 is fixed and the first planetary carrier 403 can rotate relative to the first ring gear 404. The output power of the engine 2 is transmitted along the direction of the second power input shaft 201-first sun gear 401-first planetary gear 402-first planetary carrier 403-first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the first clutch 6 is engaged and the second clutch 7 is disconnected, the output power of the engine 2 is transmitted to the first sun gear 401 through the second power input shaft 201, and at this time, the second power input shaft 201, the eighth transmission gear 12, the first sun gear 401, the first ring gear 404 and the first planetary carrier 403 rotate synchronously and are directly transmitted to the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0108] Combination Figure 5 As shown, when the multiple planetary gear sets in the first planetary gear assembly 4 are replaced with a single planetary gear set, the first power input shaft 101 is connected to the first planet carrier 403, and the eighth transmission gear 12 is added to the second power input shaft 201, and the first planet carrier 403 is selectively engaged with the eighth transmission gear 12. The first clutch 6 is provided on one of the first sun gear 401 and the second power input shaft 201, and is selectively engaged with the other. The second clutch 7 is provided on one of the first planet carrier 403 and the eighth transmission gear 12, and is selectively engaged with the other.

[0109] In the embodiment of the present utility model, when the first clutch 6 is engaged and the second clutch 7 is disengaged, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-the first sun gear 401-the first planetary gear 402-the first planetary carrier 403-the first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the first clutch 6 is engaged and the second clutch 7 is engaged, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-the eighth transmission gear 12-the first planetary carrier 403-the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0110] Combination Figure 6 As shown, when the multiple planetary gear sets in the first planetary gear assembly 4 are replaced with a single planetary gear set, a third clutch 13 is added. The third clutch 13 is connected to the first ring gear 404 and is arranged between the first power input shaft 101 and the transmission housing 5 to selectively engage the first ring gear 404 with the first power input shaft 101 or the transmission housing 5.

[0111] In the embodiment of the present utility model, when the first clutch 6 is engaged and the third clutch 13 is engaged with the transmission housing 5, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-first sun gear 401-first planetary gear 402-first planetary carrier 403-first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the first clutch 6 is engaged and the second clutch 7 is engaged with the first clutch 6, the first sun gear 401, the first planetary gear 402 and the first ring gear 404 in the first planetary gear assembly 4 do not rotate with each other, and the output power of the engine 2 can be directly transmitted from the second power input shaft 201 to the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0112] According to some further embodiments of the present invention, in combination Figure 7 As shown, the first planetary gear assembly 4 can be replaced with a third transmission gear set 15, and a fourth clutch 14 is added. The third transmission gear set 15 includes a ninth transmission gear 1501, a tenth transmission gear 1502, an eleventh transmission gear 1503, and a twelfth transmission gear 1504. The ninth transmission gear 1501 is connected to the second power input shaft 201, and the twelfth transmission gear 1504 is coaxially arranged with the first power input shaft 101 and spaced from the first power input shaft 101. The tenth transmission gear 1502 is meshed with the ninth transmission gear 1501 for transmission, the eleventh transmission gear 1503 is coaxially arranged with the tenth transmission gear 1502, and the eleventh transmission gear 1503 is meshed with the twelfth transmission gear 1504 for transmission.

[0113] Further, the fourth clutch 14 is disposed on the first power input shaft 101 and is located between the second power input shaft 201 and the twelfth transmission gear 1504 to selectively engage the first power input shaft 101 with the second power input shaft 201 and the twelfth transmission gear 1504 .

[0114] When the fourth clutch 14 is engaged with the twelfth transmission gear 1504, the output power of the engine 2 is transmitted along the direction of the second power input shaft 201-the ninth transmission gear 1501-the tenth transmission gear 1502-the eleventh transmission gear 1503-the twelfth transmission gear 1504-the first power input shaft 101, and this working mode is the hybrid first gear mode of the hybrid system 100. When the fourth clutch 14 is engaged with the second power input shaft 201, the twelfth transmission gear 1504 idles on the first power input shaft 101, and the output power of the engine 2 is directly transmitted from the second power input shaft 201 to the first power input shaft 101, and this working mode is the hybrid second gear mode of the hybrid system 100.

[0115] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "circumferential", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0116] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0117] 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hybrid system, characterized in that: include: A drive motor (1), wherein the drive motor (1) is connected to a first power input shaft (101); An engine (2), the engine (2) being connected to a second power input shaft (201), the first power input shaft (101) and the second power input shaft (201) being selectively engaged; A first planetary gear assembly (4), the first planetary gear assembly (4) comprising a first sun gear (401), a first planetary gear (402), a first planet carrier (403) and a first ring gear (404), the first planetary gear (402) being meshed between the first sun gear (401) and the first ring gear (404), the first planet carrier (403) being connected to the first planetary gear (402), the second power input shaft (201) being connected to the first sun gear (401), and the first ring gear (404) being connected to the first power input shaft (101); A transmission housing (5), the transmission housing (5) being selectively engaged with the first planet carrier (403); A power output shaft (3), the power output shaft (3) comprising a first power output shaft (301) and a second power output shaft (302), the first power output shaft (301) and the second power output shaft (302) being respectively transmission-connected to the first power input shaft (101), and the first power output shaft (301) and the second power output shaft (302) being selectively locked and fixed.

2. The hybrid system according to claim 1, characterized in that: The invention also comprises a locking device (9), wherein the locking device (9) is arranged between the first power output shaft (301) and the second power output shaft (302), and the locking device (9) is selectively locked to lock the second power output shaft (302) with the first power output shaft (301).

3. The hybrid system according to claim 1, characterized in that: The invention also includes a first clutch (6), which is arranged on one of the first power input shaft (101) and the second power input shaft (201), and the first clutch (6) is selectively engaged with the other of the first power input shaft (101) and the second power input shaft (201).

4. The hybrid system according to claim 1, characterized in that: It also includes a second clutch (7), which is arranged on one of the transmission housing (5) and the first planetary carrier (403), and the second clutch (7) is selectively engaged with the other of the transmission housing (5) and the first planetary carrier (403).

5. The hybrid system according to claim 1, characterized in that: There are multiple first planetary gears (402), and the multiple first planetary gears (402) form a planetary gear set. The planetary gear set includes multiple first planetary gears (402) arranged circumferentially at intervals outside the first sun gear (401). There are multiple planetary gear sets, and the multiple planetary gear sets are concentrically arranged and arranged radially, and two adjacent planetary gear sets are meshed with each other.

6. The hybrid system according to claim 1, characterized in that: The invention also includes a second planetary gear assembly (8), wherein the second planetary gear assembly (8) includes a second sun gear (801), a second planetary gear (802), a second planet carrier (803) and a second ring gear (804), wherein the second planetary gear (802) is meshed between the second sun gear (801) and the second ring gear (804), the second planet carrier (803) is connected to the second planetary gear (802), the second sun gear (801) is connected to the first power input shaft (101), the second ring gear (804) is transmission-connected to the first power output shaft (301), and the second planet carrier (803) is transmission-connected to the second power output shaft (302).

7. The hybrid system according to claim 6, characterized in that: The invention also includes a first transmission gear set (10), wherein the first transmission gear set (10) includes a first transmission gear (1001), a second transmission gear (1002), a third transmission gear (1003) and a fourth transmission gear (1004), wherein the first transmission gear (1001) is arranged on the second gear ring (804), the fourth transmission gear (1004) is arranged on the second power output shaft (302), the second transmission gear (1002) is meshed with the first transmission gear (1001), and the third transmission gear (1003) is meshed between the second transmission gear (1002) and the fourth transmission gear (1004).

8. The hybrid system according to claim 6, characterized in that: The invention also includes a second transmission gear set (11), wherein the second transmission gear set (11) includes a fifth transmission gear (1101), a sixth transmission gear (1102) and a seventh transmission gear (1103), wherein the fifth transmission gear (1101) is arranged on the second planetary carrier (803), the seventh transmission gear (1103) is arranged on the second power output shaft (302), and the sixth transmission gear (1102) is meshed between the fifth transmission gear (1101) and the seventh transmission gear (1103).

9. The hybrid system according to claim 6, characterized in that: There are multiple second planetary gears (802), and the multiple second planetary gears (802) form a planetary gear set. The planetary gear set includes multiple second planetary gears (802) arranged at circumferential intervals outside the second sun gear (801), and there is one planetary gear set.

10. A vehicle, characterized in that: A hybrid system (100) comprising any one of claims 1 to 9.

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