Hybrid power system and vehicle

Abstract

The utility model discloses a hybrid power system and a vehicle. The hybrid power system comprises an engine; the driving motor, the planet wheel set and the planet wheel are meshed with the sun wheel and the gear ring respectively, the second input shaft is connected with the sun wheel, and the first input shaft is selectively connected with the planet carrier or the gear ring; the transmission shaft is in transmission fit with the planet carrier, and the transmission shaft is selectively in transmission fit with the gear ring; and the output shaft is in transmission fit with the transmission shaft. Therefore, the planetary gear set is arranged in the hybrid power system, the first input shaft connected with the engine is selectively connected with the planet carrier or the gear ring, the second input shaft connected with the driving motor is connected with the planet carrier, then the transmission shaft is in transmission fit with the planet carrier, and the transmission shaft is selectively in transmission fit with the gear ring; in this way, power of the hybrid power system can be reasonably divided, the structure is simple, compact and reliable, switching of multiple modes of the hybrid power system can be easily achieved, the economical efficiency of the hybrid power system can be improved, and power in all the modes is more sufficient.

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 systems on the domestic market are generally divided into three types: series, parallel, and series-parallel hybrid. The advantages of hybrid vehicles are that they improve power economy while being energy-saving and environmentally friendly. The power mode switching of existing hybrid vehicles is mainly achieved through the transmission structure.

[0003] In the related art, the hybrid mode engine and the drive motor of the hybrid architecture of the existing hybrid transmission have a relatively simple power integration method, which cannot meet the needs of a more economical hybrid mode under various working conditions, and the problem of insufficient power is prone to occur in this mode. 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, one purpose of the utility model is to provide a hybrid system that can easily switch between multiple modes, is more economical and has more sufficient power.

[0005] The utility model further provides a vehicle.

[0006] The hybrid system according to the embodiment of the utility model includes: an engine, the engine is connected to a first input shaft; a drive motor, the drive motor is connected to a second input shaft; a planetary gear set, the planetary gear set includes a ring gear, a sun gear, a planetary carrier and a planetary gear, the planetary gear is arranged on the planetary carrier, the planetary gear is respectively meshed with the sun gear and the ring gear, the second input shaft is connected to the sun gear, and the first input shaft is selectively connected to the planetary carrier or the ring gear; a transmission shaft, the transmission shaft is in transmission cooperation with the planetary carrier, and the transmission shaft is selectively in transmission cooperation with the ring gear; an output shaft, the output shaft is in transmission cooperation with the transmission shaft.

[0007] Therefore, a planetary gear set is provided in the hybrid system, so that the first input shaft connected to the engine is selectively connected to the planetary carrier or the ring gear, the second input shaft connected to the drive motor is connected to the planetary carrier, and then the transmission shaft and the planetary carrier are matched in transmission, and the transmission shaft and the ring gear are selectively matched in transmission. In this way, the power of the hybrid system can be reasonably diverted, the structure is simple, compact and reliable, and it is easy to realize the switching of multiple modes of the hybrid system. It can also improve the economy of the hybrid system, and the power in each mode is more sufficient.

[0008] According to some embodiments of the present invention, the hybrid system also includes a first reduction gear set, wherein the first reduction gear set has an inner tooth portion and an outer tooth portion on the ring gear, the inner tooth portion is meshed with the planetary gear, the first reduction gear set is meshed with the outer tooth portion, and the first reduction gear set is selectively connected to the transmission shaft.

[0009] According to some embodiments of the present invention, the first reduction gear group includes a first intermediate transmission shaft, a first gear, a second gear and a third gear, the first gear and the second gear are both arranged on the first intermediate transmission shaft, the first gear is meshed with the external tooth portion, the second gear is meshed with the third gear, and the third gear is selectively connected to the transmission shaft.

[0010] According to some embodiments of the present utility model, the hybrid system further includes a fixing device, which is disposed on the transmission shaft and is selectively connected and fixed to the third gear.

[0011] According to some embodiments of the present utility model, the hybrid system also includes a second reduction gear set, the second reduction gear set includes a fourth gear and a fifth gear, the fourth gear is arranged on the planetary carrier, the fifth gear is arranged on the transmission shaft, and the fourth gear and the fifth gear are meshed with each other.

[0012] According to some embodiments of the present invention, the hybrid system also includes a third reduction gear set, and the third reduction gear set also includes a sixth gear and a seventh gear, the sixth gear is arranged on the transmission shaft, and the seventh gear is arranged on the output shaft and meshes with the sixth gear.

[0013] According to some embodiments of the present invention, the hybrid system further includes a first clutch device, which is disposed between the planet carrier and the first input shaft, and the first clutch device is selectively engaged or disengaged.

[0014] According to some embodiments of the present invention, the hybrid system further includes a second clutch device, wherein the second clutch device is disposed between the ring gear and the first input shaft, and the second clutch device is selectively engaged or disengaged.

[0015] According to some embodiments of the present invention, the hybrid system further includes a differential, and the differential is disposed on the output shaft.

[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 Schematic diagram of a hybrid system according to an embodiment of the present utility model.

[0020] Reference numerals:

[0021] 100. Hybrid system;

[0022] 1. Engine; 2. Drive motor;

[0023] 3. Planetary gear set; 301. Ring gear; 3011. External gear; 302. Sun gear; 303. Planet carrier; 304. Planetary gear;

[0024] 4. Transmission shaft; 401. Fixing device;

[0025] 5. Output shaft;

[0026] 6. First reduction gear set; 601. First intermediate transmission shaft; 602. First gear; 603. Second gear; 604. Third gear;

[0027] 7. Second reduction gear set; 701. Fourth gear; 702. Fifth gear;

[0028] 8. The third reduction gear set; 801. The sixth gear; 802. The seventh gear;

[0029] 9. First clutch device; 10. Second clutch device; 11. Differential; 12. First input shaft; 13. Second input shaft; 14. Third clutch device. DETAILED DESCRIPTION

[0030] 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.

[0031] See the figure below for reference Figure 1 A hybrid system 100 according to an embodiment of the present invention is described. The hybrid system 100 may be applied to a vehicle.

[0032] Combination Figure 1As shown, the hybrid system 100 according to the embodiment of the utility model can mainly include: an engine 1, a drive motor 2, a planetary gear set 3, a transmission shaft 4 and an output shaft 5, wherein the engine 1 is connected to a first input shaft 12, so that the power of the engine 1 can be output outward. The drive motor 2 is connected to a second input shaft 13, so that the power of the drive motor 2 can be output outward. The planetary gear set 3 includes a ring gear 301, a sun gear 302, a planet carrier 303 and a planetary gear 304, and the planetary gear 304 is arranged on the planet carrier 303, and the planetary gear 304 is respectively meshed with the sun gear 302 and the ring gear 301, so that the sun gear 302, the planet carrier 303 and the ring gear 301 can be transmitted.

[0033] Furthermore, the second input shaft 13 of the drive motor 2 is connected to the sun gear 302, so that the output power of the drive motor 2 can be transmitted to the planetary gear set 3, and the first input shaft 12 of the engine 1 is selectively connected to the planetary carrier 303 or the ring gear 301. In this way, the connection method between the engine 1 and the planetary gear set 3 can be changed so that the output power of the engine 1 can be transmitted to the planetary gear set 3 through different connection methods. In this way, the output power of the drive motor 2 and the output power of the engine 1 have different transmission paths in the hybrid system 100, which can make the power in the hybrid system 100 reasonably diverted, and can be used to realize the hybrid drive of the vehicle.

[0034] Furthermore, the hybrid system 100 further includes a transmission shaft 4 and an output shaft 5 that are in transmission cooperation. The transmission shaft 4 can transmit the power in the hybrid system 100 to the output shaft 5, and the output shaft 5 can further output the power to drive the vehicle. In addition, the transmission shaft 4 is in transmission cooperation with the planetary carrier 303, so that the output power of the engine 1 or the drive motor 2 can be transmitted to the transmission shaft 4 through the planetary carrier 303. The transmission shaft 4 is selectively in transmission cooperation with the ring gear 301, so that the output power of the engine 1 or the drive motor 2 can be selectively transmitted to the transmission shaft 4 through the ring gear 301, and then the various modes of the hybrid system 100 can be realized by controlling the engine 1 to selectively transmit to the ring gear 301 or the planetary carrier 303, and by controlling the transmission shaft 4 to selectively transmit to the ring gear 301. Such a setting can meet the reasonable power diversion of the hybrid system 100, and the structure is simple, compact and reliable.

[0035] Combination Figure 1 As shown, the hybrid system 100 also includes a first reduction gear set 6, the ring gear 301 is provided with an inner tooth portion and an outer tooth portion 3011, the inner tooth portion is meshed with the planetary gear 304, the first reduction gear set 6 is meshed with the outer tooth portion 3011, and the first reduction gear set 6 is selectively connected to the transmission shaft 4.

[0036] Specifically, the ring gear 301 is provided with an inner tooth portion and an outer tooth portion 3011. The ring gear 301 is sleeved on the outer periphery of the planet carrier 303. The inner tooth portion is located inside the ring gear 301 and can mesh with the planetary gear 304 on the planet carrier 303, so that the planetary gear 304 and the ring gear 301 can be matched in transmission. A first reduction gear set 6 is provided outside the planetary gear set 3. The first reduction gear set 6 meshes with the outer tooth portion 3011 of the ring gear 301, so that the power on the ring gear 301 can be transmitted to the first reduction gear set 6 through the outer tooth portion 3011. The first reduction gear set 6 can reduce the speed on the transmission path in the hybrid system 100 and increase the torque. In addition, the first reduction gear set 6 can be connected to the transmission shaft 4, so as to provide a sufficiently large driving force for the wheels to drive the vehicle to travel normally.

[0037] Furthermore, the first reduction gear set 6 is selectively connected to the drive shaft 4, so that the power on the first reduction gear set 6 can be selectively transmitted to the drive shaft 4, which can change the power transmission path in the hybrid system 100 to control the hybrid system 100 to operate in different modes according to the driving environment and driving requirements of the vehicle, thereby expanding the applicable scenarios of the hybrid system 100 and meeting the driving requirements of the vehicle in different scenarios.

[0038] Combination Figure 1 As shown, the first reduction gear group 6 includes a first intermediate transmission shaft 601, a first gear 602, a second gear 603 and a third gear 604. The first gear 602 and the second gear 603 are both arranged on the first intermediate transmission shaft 601, the first gear 602 is meshed with the outer tooth portion 3011, the second gear 603 is meshed with the third gear 604, and the third gear 604 is selectively connected to the transmission shaft 4.

[0039] Specifically, the first gear 602 and the second gear 603 in the first reduction gear are both arranged on the first intermediate transmission shaft 601, and the first gear 602 is meshed with the outer tooth portion 3011 of the ring gear 301, so that the ring gear 301 can drive the first gear 602, the first intermediate transmission shaft 601 and the second gear 603 to rotate synchronously when rotating, and the third gear 604 is selectively connected to the transmission shaft 4, and the second gear 603 is meshed with the third gear 604, so that the second gear 603 can drive the third gear 604 to rotate, and then can selectively drive the transmission shaft 4 to rotate. Among them, the radii of the first gear 602, the second gear 603 and the third gear 604 are different, so that the first reduction gear set 6 can change the speed and torque of the power to meet the driving requirements of the vehicle.

[0040] Combination Figure 1As shown, the hybrid system 100 also includes a fixing device 401, which is arranged on the transmission shaft 4, and the fixing device 401 is selectively connected and fixed with the third gear 604. Specifically, the fixing device 401 is arranged on the transmission shaft 4, and the fixing device 401 can keep synchronization with the transmission shaft 4. In addition, the fixing device 401 can also be conveniently connected and fixed with the third gear 604, so that the third gear 604 can be selectively connected with the transmission shaft 4. When the third gear 604 is connected and fixed with the fixing device 401, the third gear 604 drives the fixing device 401 to rotate synchronously, and then the power can be transmitted to the transmission shaft 4. When the third gear 604 is not connected and fixed with the fixing device 401, the third gear 604 idles, and the fixing device 401 and the transmission shaft 4 do not rotate together with the third gear 604, and at this time, the power cannot be transmitted to the transmission shaft 4.

[0041] Combination Figure 1 As shown, the hybrid system 100 further includes a second reduction gear set 7, the second reduction gear set 7 includes a fourth gear 701 and a fifth gear 702, the fourth gear 701 is arranged on the planet carrier 303, the fifth gear 702 is arranged on the transmission shaft 4, and the fourth gear 701 and the fifth gear 702 are meshed. Specifically, the planet carrier 303 is meshed with the fourth gear 701 in the second reduction gear set 7, so that the planet carrier 303 drives the fourth gear 701 to rotate, so that the power on the planet carrier 303 can be transmitted to the fourth gear 701, and then transmitted to the second reduction gear set 7. The fifth gear 702 is arranged on the transmission shaft 4 and meshed with the fourth gear 701, so that the fourth gear 701 drives the fifth gear 702 to rotate, and then the power can be transmitted to the transmission shaft 4 to drive the vehicle to travel normally. The second reduction gear set 7 can change the speed and torque of the power on the transmission path in the hybrid system 100 to provide sufficient driving force for the vehicle.

[0042] Combination Figure 1 As shown, the hybrid system 100 further includes a third reduction gear set 8, and the third reduction gear set 8 further includes a sixth gear 801 and a seventh gear 802, the sixth gear 801 is arranged on the transmission shaft 4, and the seventh gear 802 is arranged on the output shaft 5 and meshes with the sixth gear 801. Specifically, the third reduction gear set 8 is arranged between the transmission shaft 4 and the output shaft 5, which can not only make the transmission shaft 4 and the output shaft 5 transmission-connected, but also change the speed and torque of the power transmitted from the transmission shaft 4 to the output shaft 5. In addition, the transmission cooperation between the seventh gear 802 and the sixth gear 801 can realize the speed change and torque increase between the transmission shaft 4 and the output shaft 5.

[0043] In the embodiment of the present invention, the fixing device 401 , the third gear 604 , the fifth gear 702 and the sixth gear 801 are all arranged on the transmission shaft 4 , which can improve the integration of the hybrid system 100 .

[0044] Combination Figure 1 As shown, the hybrid system 100 further includes a first clutch device 9, which is disposed between the planet carrier 303 and the first input shaft 12, and the first clutch device 9 is selectively engaged or disconnected. Specifically, the first clutch device 9 is disposed between the planet carrier 303 and the first input shaft 12, and the first input shaft 12 and the planet carrier 303 can be selectively disconnected and connected by selectively controlling the disconnection and engagement of the first clutch device 9, and then the first input shaft 12 can be selectively connected to the planet carrier 303, so that the output power of the engine 1 can be transmitted to the planetary gear set 3 through the selective connection between the first input shaft 12 and the planet carrier 303, so that multiple mode switching of the hybrid system 100 can be easily realized.

[0045] Combination Figure 1 As shown, the hybrid system 100 further includes a second clutch device 10, which is disposed between the ring gear 301 and the first input shaft 12, and the second clutch device 10 is selectively engaged or disengaged. Specifically, the second clutch device 10 is disposed between the ring gear 301 and the first input shaft 12, and the first input shaft 12 and the ring gear 301 can be selectively disconnected and connected by selectively controlling the disconnection and engagement of the second clutch device 10, and then the first input shaft 12 can be selectively connected to the ring gear 301, so that the output power of the engine 1 can be transmitted to the planetary gear set 3 through the selective connection between the first input shaft 12 and the ring gear 301, so that multiple mode switching of the hybrid system 100 can be easily realized.

[0046] Combination Figure 1 As shown, the hybrid system 100 further includes a third clutch device 14, which is disposed between the third gear 604 and the fixing device 401, and the third clutch device 14 is selectively engaged or disconnected. Specifically, the third clutch device 14 is disposed between the third gear 604 and the fixing device 401, and the third gear 604 and the transmission shaft 4 can be selectively disconnected and connected by selectively controlling the disconnection and engagement of the third clutch device 14, and then the third gear 604 can be selectively connected to the transmission shaft 4, so that multiple mode switching of the hybrid system 100 can be easily achieved.

[0047] Combination Figure 1 As shown, the hybrid system 100 further includes a differential 11, which is disposed on the output shaft 5. Specifically, both ends of the output shaft 5 are connected to wheels, and the differential 11 is disposed on the output shaft 5. The differential 11 is used to distribute the torque transmitted by the output shaft 5 to the wheels on both sides, so as to ensure that the two wheels rotate at different angular velocities, so as to ensure that the vehicle can travel stably in a complex environment.

[0048] The vehicle according to the present invention may mainly include: the above-mentioned hybrid system 100. Specifically, by applying the hybrid system 100 to the vehicle, the vehicle can realize multiple driving modes such as pure electric driving, fuel driving, electronic continuously variable transmission and hybrid driving. The various driving modes of the vehicle in the present invention are described below.

[0049] In the embodiment of the present utility model, when the hybrid system 100 operates in the pure electric drive mode, the first clutch device 9 and the second clutch device 10 are both disconnected, and the third clutch device 14 is engaged, so that the output power of the drive motor 2 drives the sun gear 302, the planetary carrier 303 and the ring gear 301 to rotate through the first input shaft 12, and the power on the planetary carrier 303 is transmitted to the transmission shaft 4 through the second reduction gear set 7, and the power on the ring gear 301 is transmitted to the transmission shaft 4 through the first reduction gear set 6. The transmission shaft 4 can transmit the power to the output shaft 5 through the third reduction gear set 8, and then drive the vehicle to travel. In this sports mode, the forward and backward movement of the vehicle can be achieved by the forward and reverse rotation of the drive motor 2. In the pure electric drive mode, the power of the drive motor 2 can be directly transmitted to the transmission shaft 4 through the second reduction gear set 7, so that the power transmission route in the pure electric drive mode is simple and the transmission efficiency is high, and the hybrid system 100 can achieve a large speed ratio power output in the pure electric drive mode.

[0050] In the embodiment of the utility model, when the hybrid system 100 operates in the fuel drive mode, it is divided into a fuel forward gear mode and a fuel reverse gear mode. When the hybrid system 100 operates in the fuel forward gear mode, the second clutch device 10 and the third clutch device 14 are disconnected, and the first clutch device 9 is engaged, so that the output power of the engine 1 drives the planetary carrier 303 and the ring gear 301 to rotate through the second input shaft 13. At this time, the third gear 604 is disconnected from the fixing device 401. The power on the planetary carrier 303 is transmitted to the transmission shaft 4 through the second reduction gear set 7, and the transmission shaft 4 can transmit the power to the output shaft 5 through the third reduction gear set 8, thereby driving the vehicle forward.

[0051] Furthermore, when the hybrid system 100 operates in the fuel reverse gear mode, the first clutch device 9 is disconnected, the second clutch device 10 and the third clutch device 14 are engaged, and the output power of the engine 1 is transmitted to the ring gear 301 through the second input shaft 13, and the planetary carrier 303 is driven to rotate through the ring gear 301. The first reduction gear set 6 can transmit the power on the ring gear 301 to the transmission shaft 4, and the second reduction gear set 7 can transmit the power on the planetary carrier 303 to the transmission shaft 4. The transmission shaft 4 can transmit the power to the output shaft 5 through the third reduction gear set 8, and then the vehicle can be driven to travel backward. In the fuel reverse gear mode, the power of the engine 1 can be directly transmitted to the transmission shaft 4 through the first reduction gear set 6, so that the power transmission route in the fuel reverse gear mode is simple and the transmission efficiency is high, and the hybrid system 100 can achieve a high speed ratio power output in the fuel reverse gear mode.

[0052] In an embodiment of the utility model, when the hybrid system 100 operates in the electronic continuously variable transmission mode, the first clutch device 9 and the third clutch device 14 are disconnected, the second clutch device 10 is engaged, and the output power of the engine 1 is transmitted to the ring gear 301 through the second input shaft 13, and the output power of the drive motor 2 is transmitted to the sun gear 302 through the second input shaft 13. After the planetary gear set 3 performs continuously variable transmission fusion on the power, it is output to the second reduction gear set 7 through the planetary carrier 303, and the second reduction gear set 7 transmits the power to the transmission shaft 4, and the transmission shaft 4 can transmit the power to the output shaft 5 through the third reduction gear set 8, thereby driving the vehicle to run normally.

[0053] In the embodiment of the utility model, when the hybrid system 100 operates in the hybrid drive mode, the third clutch device 14 is disconnected, the first clutch device 9 and the second clutch device 10 are engaged, the output power of the engine 1 is transmitted to the ring gear 301 and the planetary carrier 303 through the second input shaft 13, the output power of the drive motor 2 is transmitted to the sun gear 302 through the first input shaft 12, the sun gear 302, the planetary carrier 303 and the ring gear 301 on the planetary gear set 3 are fixedly connected and rotate synchronously at a speed ratio of 1, and then output to the second reduction gear set 7 through the planetary carrier 303, the second reduction gear set 7 transmits the power to the transmission shaft 4, and the transmission shaft 4 can transmit the power to the output shaft 5 through the third reduction gear set 8, so that the vehicle can be driven at a medium and high speed in the hybrid drive mode.

[0054] The hybrid system 100 of the utility model can realize free switching among various driving modes such as pure electric driving, fuel driving, electronic continuously variable transmission and hybrid driving, with high transmission efficiency and good fuel economy.

[0055] 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.

[0056] 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.

[0057] 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: An engine (1), the engine (1) being connected to a first input shaft (12); A drive motor (2), wherein the drive motor (2) is connected to a second input shaft (13); A planetary gear set (3), the planetary gear set (3) comprising a ring gear (301), a sun gear (302), a planet carrier (303) and a planetary gear (304), the planetary gear (304) being arranged on the planet carrier (303), the planetary gear (304) being meshed with the sun gear (302) and the ring gear (301) respectively, the second input shaft (13) being connected to the sun gear (302), and the first input shaft (12) being selectively connected to the planet carrier (303) or the ring gear (301); A transmission shaft (4), the transmission shaft (4) and the planet carrier (303) are in transmission cooperation, and the transmission shaft (4) and the ring gear (301) are selectively in transmission cooperation; An output shaft (5), the output shaft (5) is in transmission cooperation with the transmission shaft (4).

2. The hybrid system according to claim 1, characterized in that: The invention also comprises a first reduction gear set (6), wherein the first reduction gear set (6) is provided with an inner tooth portion and an outer tooth portion (3011) on the ring gear (301), wherein the inner tooth portion is meshed with the planetary gear (304), the first reduction gear set (6) is meshed with the outer tooth portion (3011), and the first reduction gear set (6) is selectively connected with the transmission shaft (4).

3. The hybrid system according to claim 2, characterized in that: The first reduction gear set (6) includes a first intermediate transmission shaft (601), a first gear (602), a second gear (603) and a third gear (604); the first gear (602) and the second gear (603) are both arranged on the first intermediate transmission shaft (601); the first gear (602) is meshed with the outer tooth portion (3011); the second gear (603) is meshed with the third gear (604); and the third gear (604) is selectively connected to the transmission shaft (4).

4. The hybrid system according to claim 3, characterized in that: It also comprises a fixing device (401), wherein the fixing device (401) is arranged on the transmission shaft (4), and the fixing device (401) is selectively connected and fixed to the third gear (604).

5. The hybrid system according to claim 1, characterized in that: The invention also comprises a second reduction gear set (7), wherein the second reduction gear set (7) comprises a fourth gear (701) and a fifth gear (702), wherein the fourth gear (701) is arranged on the planet carrier (303), and the fifth gear (702) is arranged on the transmission shaft (4), and the fourth gear (701) and the fifth gear (702) are meshed with each other.

6. The hybrid system according to claim 1, characterized in that: The invention also comprises a third reduction gear set (8), wherein the third reduction gear set (8) further comprises a sixth gear (801) and a seventh gear (802), wherein the sixth gear (801) is arranged on the transmission shaft (4), and the seventh gear (802) is arranged on the output shaft (5) and meshes with the sixth gear (801).

7. The hybrid system according to claim 1, characterized in that: The invention also comprises a first clutch device (9), wherein the first clutch device (9) is arranged between the planet carrier (303) and the first input shaft (12), and the first clutch device (9) is selectively engaged or disengaged.

8. The hybrid system according to claim 1, characterized in that: The invention also comprises a second clutch device (10), wherein the second clutch device (10) is arranged between the ring gear (301) and the first input shaft (12), and the second clutch device (10) is selectively engaged or disengaged.

9. The hybrid system according to claim 1, characterized in that: It also includes a differential (11), wherein the differential (11) is arranged on the output shaft (5).

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

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