Hybrid powertrain and vehicle

Abstract

The present invention belongs to the technical field of automotive transmission, and particularly relates to a hybrid transmission device and an automobile. The hybrid transmission device includes an engine, a generator, a drive motor, a planetary gear mechanism, a clutch assembly, a gear assembly, a first shaft, a second shaft and a brake; the clutch assembly includes a first clutch and a second clutch; the planetary gear mechanism includes a sun gear, a planetary gear, a ring gear provided with external teeth and a planet carrier provided with meshing teeth; the sun gear is connected to the first shaft, the output shaft of the engine is connected to the planet carrier through the first clutch, the ring gear is connected to the first shaft, and the generator is connected to the second shaft; the gear assembly includes a first gear, a second gear, a third gear and a fourth gear; the first gear meshes with the external teeth of the ring gear; the second gear meshes with the meshing teeth; the drive motor is connected to the output end through the fourth gear. In the present invention, the integrated electric drive system improves the power performance and economy of the automobile.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive transmissions, and particularly relates to a hybrid transmission device and an automobile. Background Art

[0002] Traditional internal combustion engine vehicles have a huge demand for and consumption of fossil energy, resulting in continuous increases in oil consumption and external dependence. Currently, the hybrid systems are mainly divided into three directions, namely, series hybrid systems, parallel hybrid systems, and series-parallel hybrid systems.

[0003] The series-parallel hybrid system relies on the engine to drive the generator to generate electricity. The generated electric energy is directly supplied to the drive motor to drive the vehicle or stored in the power battery. Due to the long transmission chain, this system has high efficiency losses and limited fuel-saving ability. And when the vehicle is required to cover various working conditions, the power selection of the drive motor, generator, and engine needs to be very large, resulting in increased costs and layout problems.

[0004] The parallel hybrid system relies on the engine and the drive motor to jointly output power to meet the power requirements of the vehicle. However, since the engine speed cannot be decoupled from the vehicle speed, the ability to adjust the high-efficiency area of the engine is limited, and the fuel-saving effect is limited.

[0005] The series-parallel hybrid system combines the advantages of the series and parallel types, but the complexity and control difficulty of this system are relatively large. Summary of the Invention

[0006] The present invention solves the technical problems such as the complex structure existing in the hybrid transmission device, and provides a hybrid transmission device and an automobile.

[0007] In view of the above problems, a hybrid transmission device provided by an embodiment of the present invention includes an engine, a generator, a drive motor, a planetary gear mechanism, a clutch assembly, a gear assembly, a first shaft, a second shaft, and a brake for braking the first shaft; the clutch assembly includes a first clutch and a second clutch;

[0008] The planetary gear mechanism includes a sun gear, planet gears, a ring gear with external teeth, and a planet carrier with meshing teeth; the sun gear and the ring gear are both meshed with the planet gears; the sun gear is connected to the first shaft, the output shaft of the engine is connected to the ring gear, the ring gear is connected to the first shaft through the first clutch, and the output shaft of the generator is connected to the second shaft through the second clutch;

[0009] The gear assembly includes a first gear, a fourth gear, and a second gear and a third gear both mounted on the second shaft; the first gear is mounted on the output shaft of the generator and meshes with the external teeth; the second gear meshes with the meshing teeth, and the second gear or the third gear meshes with the reduction gear; the drive motor is connected to the output end through the fourth gear.

[0010] Optionally, a reduction gear is provided at the output end, and the fourth gear and the third gear are respectively meshed on opposite sides of the reduction gear.

[0011] Optionally, a reduction gear is provided at the output end, and the fourth gear and the reduction gear are respectively meshed on opposite sides of the third gear.

[0012] Optionally, a reduction gear is provided at the output end, and the reduction gear meshes with the third gear; the fourth gear and the meshing teeth of the planet carrier are respectively meshed on opposite sides of the second gear.

[0013] Optionally, a reduction gear is provided at the output end, and the reduction gear meshes with the second gear; the fourth gear meshes with the third gear.

[0014] Optionally, the hybrid transmission has a drive motor drive mode;

[0015] When the hybrid transmission is in the drive motor drive mode, the first clutch, the second clutch, and the brake are all disengaged, and the drive motor drives the vehicle wheels to rotate.

[0016] Optionally, the hybrid transmission has an engine drive mode, and the engine drive mode includes an engine drive first gear mode, an engine drive second gear mode, and an engine drive third gear mode;

[0017] When the hybrid transmission is in the engine drive first gear mode, the drive motor and the generator are both inoperative, the first clutch is engaged, the second clutch and the brake are both disengaged, and the engine drives the vehicle wheels to rotate;

[0018] When the hybrid transmission is in the engine drive second gear mode, the drive motor and the generator are both inoperative, the second clutch is engaged, the first clutch and the brake are both disengaged, and the engine drives the vehicle wheels to rotate;

[0019] When the hybrid transmission is in the engine drive third gear mode, the drive motor and the generator are both inoperative, the brake is engaged, the first clutch and the second clutch are both disengaged, and the engine drives the vehicle wheels to rotate.

[0020] Optionally, the hybrid transmission has a hybrid drive mode, which includes a first hybrid drive gear mode, a second hybrid drive gear mode, and a third hybrid drive gear mode;

[0021] When the hybrid transmission is in the first hybrid drive gear mode, the drive motor or the generator operates, the first clutch is closed, and the second clutch and the brake are both disengaged. If the generator or the drive motor operates in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor operates in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity.

[0022] When the hybrid transmission is in the second hybrid drive gear mode, when the drive motor or the generator operates, the second clutch is closed, and the first clutch and the brake are both disengaged. If the generator or the drive motor operates in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor operates in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity.

[0023] When the hybrid transmission is in the third hybrid drive gear mode, when the drive motor or the generator outputs power, the brake is closed, and the first clutch and the second clutch are both disengaged; if the generator or the drive motor operates in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor operates in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity.

[0024] Optionally, the hybrid transmission has a parking power generation mode and an extended range mode;

[0025] When the hybrid transmission is in the parking power generation mode, the first clutch, the second clutch, and the brake are all disengaged, and the engine drives the generator to generate electricity;

[0026] When the hybrid transmission is in the extended range mode, the first clutch is closed, the second clutch and the brake are both disengaged, the engine drives the generator to generate electricity, and the drive motor drives the vehicle wheels to rotate.

[0027] In the present invention, the hybrid transmission device includes a first clutch, a second clutch, and a brake. By controlling the engagement and disengagement of the first clutch, the second clutch, and the brake, the hybrid transmission device can be controlled to be in different driving modes (the driving modes include a generator driving mode with three gears, a driving motor driving mode with one gear, an engine driving mode with three gears, a hybrid driving mode with three gears, a parking power generation mode with one gear, and an extended range mode with one gear), which can effectively improve the power performance and economy of the vehicle, reduce the torque requirement of the driving motor, thereby reducing the volume of the driving motor and meeting the pure electric starting requirement with large torque, and can achieve shift without power interruption. In addition, the driving motor can directly drive the vehicle wheels to rotate through the fourth gear, and the torque response of the driving motor is fast. Furthermore, the speed increase and torque reduction between the engine and the generator are achieved through a first-stage gear (i.e., the ring gear and the first gear are meshed), which can effectively reduce the volume of the generator. In addition, the hybrid transmission device realizes gear combination through the planetary gear mechanism, which can effectively reduce the axial dimension of the hybrid transmission device. The transmission is carried out through the external teeth of the ring gear and the meshing teeth of the planetary carrier, which can appropriately reduce the number of gears in use. The hybrid transmission device can cover HEV (Hybrid Electric Vehicle) models and PHEV (Plug-in Hybrid Electric vehicle) models, and has good platformization.

[0028] An embodiment of the present invention further provides a vehicle, including the above-mentioned hybrid transmission device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the drawings and embodiments.

[0030] Figure 1 It is a schematic diagram of the hybrid transmission device provided by the first embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the hybrid transmission device provided by the second embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the hybrid transmission device provided by the third embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the hybrid transmission device provided by the fourth embodiment of the present invention.

[0034] The reference numerals in the specification are as follows:

[0035] 1. Engine; 2. Generator; 3. Drive motor; 4. Planetary gear mechanism; 41. Sun gear; 42. Planet gear; 43. Ring gear; 44. Planet carrier; 5. Clutch assembly; 51. First clutch; 52. Second clutch; 6. Gear assembly; 61. First gear; 62. Second gear; 63. Third gear; 64. Fourth gear; 7. First shaft; 8. Second shaft; 9. Brake; 10. Reduction gear. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0038] As Figures 1 to 4 shown, an embodiment of the present invention provides a hybrid power transmission device, including an engine 1, a generator 2, a drive motor 3, a planetary gear mechanism 4, a clutch assembly 5, a gear assembly 6, a first shaft 7, a second shaft 8, and a brake 9 for braking the first shaft 7; the clutch assembly 5 includes a first clutch 51 and a second clutch 52; preferably, the first shaft 7 and the second shaft 8 are arranged in parallel.

[0039] The planetary gear mechanism 4 includes a sun gear 41, planet gears 42, a ring gear 43, and a planet carrier 44 provided with meshing teeth; the sun gear 41 and the ring gear 43 are both meshed with the planet gears 42; the sun gear 41 is connected to the first shaft 7, the output shaft of the engine 1 is connected to the ring gear 43, the ring gear 43 is connected to the first shaft 7 through the first clutch 51, and the output shaft of the generator 2 is connected to the second shaft 8 through the second clutch 52; it can be understood that the planet gears 42 can be provided in multiple numbers according to actual needs, and multiple planet gears 42 are all located inside the ring gear 43 and are all meshed with the internal teeth of the ring gear 43; while the sun gear 41 is located in the middle of the multiple planet gears 42 and the sun gear 41 is meshed with the planet gears 42; all the planet gears 42 are rotatably mounted on the planet carrier 44.

[0040] Furthermore, the first clutch 51 includes a first engaging portion mounted on the ring gear 43 and a second engaging portion mounted on the first shaft 7. When the first engaging portion and the second engaging portion are engaged, the ring gear 43 and the first shaft 7 form an integral body. The second clutch 52 includes a third engaging portion mounted on the output shaft of the generator 2 and a fourth engaging portion mounted on the second shaft 8. When the third engaging portion and the fourth engaging portion are engaged, the generator 2 and the second shaft 8 form an integral body.

[0041] The gear assembly 6 includes a first gear 61, a fourth gear 64, and a second gear 62 and a third gear 63 both mounted on the second shaft 8. The first gear 61 is mounted on the output shaft of the generator 2 and meshes with the external teeth of the ring gear 43. The second gear 62 meshes with the meshing teeth. The drive motor 3 is connected to the output end (i.e., the vehicle reduction gear 10) through the fourth gear 64. It can be understood that the fourth gear is mounted on the output shaft of the drive motor 3. The brake 9 and the first clutch 51 are mounted on opposite ends of the first shaft 7. The sun gear 41 is mounted on the first shaft 7 and the sun gear 41 is located between the brake 9 and the first clutch 51. Furthermore, the reduction gear 10 is connected to a vehicle reducer, and the vehicle reducer is connected to vehicle wheels through vehicle half shafts.

[0042] It should be noted that when the first clutch 51 is closed and the brake 9 is disengaged, the ring gear 43 is connected to the first shaft 7, and the sun gear 41 is also connected to the first shaft 7. At this time, the planetary gear mechanism 4 forms a locked integral body, that is, it is equivalent to a gear formed by the external teeth of the ring gear 43. When the brake 9 is closed and the first clutch 51 is disengaged, the ring gear 43 drives the planet carrier 44 to rotate through the planet gear 42. When both the first clutch 51 and the brake 9 are disengaged, the ring gear 43 can rotate relative to the planet gear 42, while the planet carrier 44 does not rotate. When both the first clutch 51 and the brake 9 are closed, the planetary gear mechanism 4 will be stationary.

[0043] In the present invention, the hybrid transmission device includes a first clutch 51, a second clutch 52 and a brake 9. By controlling the engagement and disengagement of the first clutch 51, the second clutch 52 and the brake 9, the hybrid transmission device can be controlled to be in different driving modes (the driving modes include a generator driving mode with three gears, a driving motor driving mode with one gear, a hybrid driving mode with three gears, a power generation mode with one gear and an extended range mode with one gear), which can effectively improve the power performance and economy of the vehicle, reduce the torque demand of the driving motor 3, thereby reducing the volume of the driving motor 3 and meeting the pure electric starting demand with large torque, and can achieve shift without power interruption. In addition, the driving motor 3 can directly drive the vehicle wheels to rotate through the fourth gear 64, and the torque response of the driving motor 3 is fast. In addition, the engine 1 and the generator 2 realize speed increase and torque reduction through a first-stage gear (i.e., the ring gear 43 and the first gear 61 are engaged), which can effectively reduce the volume of the generator 2. In addition, the hybrid transmission device realizes gear combination through the planetary gear mechanism 4, which can effectively reduce the axial dimension of the hybrid transmission device. The outer teeth of the ring gear 43 and the meshing teeth of the planet carrier 44 are used for transmission, which can appropriately reduce the number of gears in use. The hybrid transmission device can cover HEV (Hybrid Electric Vehicle) models and PHEV (Plug-in Hybrid Electric vehicle) models, and has good platformization.

[0044] In one embodiment, as Figure 2 shown, a reduction gear 10 is provided at the output end, and the fourth gear 64 and the third gear 63 are respectively engaged on opposite sides of the reduction gear 10. It can be understood that at this time, the rotation of the second shaft 8 drives the reduction gear 10 to rotate through the third gear 63, and then drives the vehicle wheels to rotate; and the rotation of the driving motor 3 drives the vehicle reducer to rotate through the fourth gear 64, and then drives the vehicle wheels to rotate.

[0045] In one embodiment, as Figure 1 described, a reduction gear 10 is provided at the output end; the fourth gear 64 and the reduction gear 10 are respectively engaged on opposite sides of the third gear 63. It can be understood that the driving motor 3 is connected to the reduction gear 10 through the fourth gear 64, and the rotation of the second shaft 8 drives the reduction gear 10 to rotate through the third gear 63, and then drives the vehicle wheels to rotate; and the driving motor 3 drives the reduction gear 10 to rotate through the fourth gear 64 and the third gear 63, and then drives the vehicle wheels to rotate.

[0046] In one embodiment, as Figure 3 shown, a reduction gear 10 is provided at the output end, and the fourth gear 64 and the meshing teeth are respectively meshed on opposite sides of the second gear 62. It can be understood that the drive motor 3 is connected to the reduction gear 10 through the fourth gear 64, the second gear 62, the second shaft 8, and the third gear 63. And at this time, the rotation of the second shaft 8 drives the reduction gear 10 to rotate through the third gear 63, thereby driving the vehicle wheels to rotate; and the drive motor 3 drives the reduction gear 10 to rotate through the fourth gear 64, the second gear 62, and the third gear 63, thereby driving the vehicle wheels to rotate.

[0047] In one embodiment, as Figure 4 shown, a reduction gear 10 is provided at the output end, and the reduction gear 10 is meshed with the second gear 62; the fourth gear 64 is meshed with the third gear 63. It can be understood that the drive motor 3 is connected to the reduction gear 10 through the fourth gear 64, the third gear 63, the second shaft 8, and the second gear 62. And at this time, the rotation of the second shaft 8 drives the reduction gear 10 to rotate through the second gear 62, thereby driving the vehicle wheels to rotate; and the drive motor 3 drives the reduction gear 10 to rotate through the fourth gear 64, the second gear 62, and the third gear 63, thereby driving the vehicle wheels to rotate.

[0048] In summary, the drive motor 3 of the hybrid power transmission device can drive the vehicle wheels to rotate according to different forms of meshed gears, and the meshing teeth can also drive the vehicle wheels to rotate through the second gear 62 or the third gear 63, thereby improving the applicability of the hybrid power transmission device.

[0049] It should be noted that the following drive modes of the hybrid power transmission device are all described according to the Figure 1 shown technical solution, that is, the reduction gear 10 is meshed with the third gear 63; the fourth gear 64 and the reduction gear 10 are respectively meshed at opposite ends of the third gear 63. The hybrid power transmission devices with other structures can be analogized to the Figure 1 structure herein and will not be elaborated here.

[0050] In one embodiment, as Figure 1 shown, the hybrid power transmission device has a drive motor drive mode; it can be understood that in this drive mode, the vehicle wheels are only driven by the drive motor 3.

[0051] When the hybrid transmission is in the drive motor drive mode, the first clutch 51, the second clutch 52, and the brake 9 are all disengaged, and the drive motor 3 drives the vehicle wheels to rotate. Specifically, in this mode, the drive motor 3 drives the vehicle wheels to rotate through the fourth gear 64, the third gear 63, and the vehicle differential gear in sequence. In this embodiment, when the vehicle starts, the power of the drive motor 3 can be directly output to the vehicle wheels, and the torque response is fast.

[0052] In one embodiment, as Figure 1 shown, the hybrid transmission has an engine drive mode, and the engine drive mode includes an engine drive first gear mode, an engine drive second gear mode, and an engine drive third gear mode; it can be understood that in this drive mode, the vehicle wheels are only driven by the engine 1.

[0053] When the hybrid transmission is in the engine drive first gear mode, the drive motor 3 and the generator 2 are both inoperative, the first clutch 51 is engaged, the second clutch 52 and the brake 9 are both disengaged, and the engine 1 drives the vehicle wheels to rotate; specifically, when the first clutch 51 is engaged, the planetary gear structure can only rotate as a whole; in this mode, the engine 1 drives the vehicle wheels to rotate through the ring gear 43, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the reduction gear 10 in sequence.

[0054] When the hybrid transmission is in the engine drive second gear mode, the drive motor 3 and the generator 2 are both inoperative, the second clutch 52 is engaged, the first clutch 51 and the brake 9 are both disengaged, and the engine 1 drives the vehicle wheels to rotate; specifically, in this mode, the engine 1 drives the vehicle wheels to rotate through the ring gear 43, the first gear 61, the second clutch 52, the second shaft 8, the third gear 63, and the reduction gear 10 in sequence.

[0055] When the hybrid transmission is in the engine drive third gear mode, the drive motor 3 and the generator 2 are both inoperative, the brake 9 is engaged, the first clutch 51 and the second clutch 52 are both disengaged, and the engine 1 drives the vehicle wheels to rotate. Specifically, when the brake 9 is engaged, the ring gear 43 drives the planet carrier 44 to rotate through the planet gear 42; in this mode, the engine 1 drives the vehicle wheels to rotate through the ring gear 43, the planet gear 42, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the reduction gear 10 in sequence.

[0056] In this embodiment, the hybrid drive device has an engine drive mode with three gears, which improves the power performance and economy of the vehicle, increases the gear ratio range of the vehicle, and further enhances the driving experience of the vehicle.

[0057] In one embodiment, as Figure 1 shown, the hybrid drive device has a hybrid drive mode, and the hybrid drive mode includes a hybrid drive first gear mode, a hybrid drive second gear mode, and a hybrid drive third gear mode;

[0058] When the hybrid drive device is in the hybrid drive first gear mode, the drive motor 3 or the generator 2 operates, the first clutch 51 is closed, and the second clutch 52 and the brake 9 are both disengaged; if the generator 2 or the drive motor 3 operates in the power output state, the engine 1 and the drive motor 3 or the generator 2 that outputs power drive the vehicle wheels to rotate simultaneously; it can be understood that when the power output by the engine 1 is less than the preset required power of the vehicle, the power output by the drive motor 3 or the generator 2 and the power output by the engine 1 drive the vehicle wheels to rotate simultaneously, so as to meet the requirements for normal driving of the vehicle. At this time, the engine 1 drives the vehicle wheels to rotate along the power transmission path of the engine first gear mode; when the drive motor 3 drives the vehicle wheels to rotate, the power of the drive motor 3 drives the vehicle wheels to rotate successively through the fourth gear 64, the third gear 63, and the differential gear 10; when the generator 2 drives the vehicle wheels to rotate, the power of the generator 2 drives the vehicle wheels to rotate successively through the first gear 61, the ring gear 43, the planet gear 42, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the reduction gear 10.

[0059] If the generator 2 or the drive motor 3 operates in the power generation state, the engine 1 drives the vehicle wheels to rotate and drives the drive motor 3 or the generator 2 to generate electricity; if the power output by the engine 1 is greater than the preset required power of the vehicle (that is, the power output by the engine not only meets the power required by the vehicle wheels but also has surplus power), the engine 1 drives the vehicle wheels to rotate, and at the same time, the engine 1 also drives the generator 2 or the drive motor 3 to generate electricity; when the engine 1 drives the generator 2 to generate electricity, the power of the engine 1 drives the generator 2 to generate electricity successively through the ring gear 43 and the first gear 61. When the engine 1 drives the drive motor 3 to generate electricity, the power of the engine drives the drive motor to generate electricity successively through the ring gear 43, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the fourth gear 64.

[0060] When the hybrid transmission is in the hybrid drive second gear mode and the drive motor 3 or the generator 2 is operating, the second clutch 52 is closed, and the first clutch 51 and the brake 9 are both disengaged; if the generator 2 or the drive motor 3 is operating in the power output state, the engine 1 and the drive motor 3 or the generator 2 that outputs power drive the vehicle wheels to rotate simultaneously. At this time, the engine 1 drives the vehicle wheels to rotate in the engine second gear drive mode; if the drive motor 3 drives the vehicle wheels to rotate, the power of the drive motor 3 drives the vehicle wheels to rotate successively through the fourth gear 64, the third gear 63, and the differential gear 10; if the generator 2 drives the vehicle wheels to rotate, the power of the generator 2 drives the vehicle wheels to rotate successively through the first gear 51, the second clutch 52, the second shaft 8, the third gear 63, and the reduction gear 10.

[0061] If the generator 2 or the drive motor 3 is operating in the power generation state, the engine 1 drives the vehicle wheels to rotate and drives the generator 2 or the drive motor 3 to generate electricity; if the power output by the engine 1 is greater than the preset required power of the vehicle, the engine 1 drives the vehicle wheels to rotate and at the same time the engine 1 also drives the generator 2 or the drive motor 3 to generate electricity. When the engine 1 drives the generator 2 to generate electricity, the power of the engine 1 drives the generator 2 to generate electricity successively through the first clutch 51, the ring gear 43, and the first gear 61. When the engine 1 drives the drive motor 3 to generate electricity, the power of the engine 1 drives the drive motor 3 to generate electricity successively through the ring gear 43, the first gear 61, the second clutch 52, the second shaft 8, the third gear 63, and the fourth gear 64.

[0062] When the hybrid transmission is in the hybrid drive third gear mode, and the drive motor 3 or the generator 2 outputs power, the brake 9 is closed, and the first clutch 51 and the second clutch 52 are both disengaged; if the generator 2 or the drive motor 3 operates in the power output state, the engine 1 and the drive motor 3 or the generator 2 that outputs power drive the vehicle wheels to rotate simultaneously. At this time, the engine 1 drives the vehicle wheels to rotate in the engine third gear drive mode; when the drive motor 3 drives the vehicle wheels to rotate, the power of the drive motor 3 drives the vehicle wheels to rotate successively through the fourth gear 64, the third gear 63, and the differential gear 10; when the generator 2 drives the vehicle wheels to rotate, the power of the generator 2 drives the vehicle wheels to rotate successively through the first gear 51, the ring gear 43, the planet gear 42, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the reduction gear 10.

[0063] If the generator 2 or the drive motor 3 operates in the power generation state, the engine 1 drives the vehicle wheels to rotate and drives the generator 2 or the drive motor 3 to generate power. If the power output by the engine 1 is greater than the preset required power of the vehicle, the engine 1 drives the vehicle wheels to rotate, and at the same time, the engine 1 also drives the generator 2 or the drive motor 3 to generate power. When the engine 1 drives the generator 2 to generate power, the power of the engine 1 drives the generator 2 to generate power successively through the ring gear 43 and the first gear 61. When the engine 1 drives the drive motor 3 to generate power, the power of the engine 1 drives the drive motor 3 to generate power successively through the ring gear 43, the planet gear 42, the meshing teeth of the planet carrier 44, the second gear 62, the second shaft 8, the third gear 63, and the fourth gear 64.

[0064] In one embodiment, as Figure 1 shown, the hybrid transmission has a parking power generation mode and an extended range mode;

[0065] When the hybrid transmission is in the parking power generation mode, the first clutch 51, the second clutch 52, and the brake 9 are all disengaged, and the engine 1 drives the generator 2 to generate power; specifically, in this mode, the engine 1 drives the generator 2 to rotate reversely successively through the ring gear 43, the planet gear 42, and the first gear 61, thereby achieving the technical effect of charging the generator 2 and improving the energy utilization rate of the engine 1.

[0066] When the hybrid drive is in the range extender mode, the first clutch 51 is closed, the second clutch 52 and the brake 9 are both disengaged. The engine 1 drives the generator 2 to generate electricity, and the drive motor 3 drives the vehicle wheels to rotate. Specifically, in this mode, while the engine 1 drives the generator 2 to rotate in reverse through the ring gear 43, the planet gear 42 and the first gear 61 in sequence, if the drive motor 3 outputs power, the drive motor 3 drives the vehicle wheels to rotate through the fourth gear 64, the third gear 63 and the vehicle differential gear in sequence.

[0067] In summary, the drive modes of the hybrid drive mechanism described above are shown in Table 1:

[0068] Table 1 Drive Mode Table of Hybrid Coupling Mechanism

[0069]

[0070] Another embodiment of the present invention further provides a vehicle including the hybrid drive described above.

[0071] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hybrid transmission device, characterized in that, It includes an engine, a generator, a drive motor, a planetary gear mechanism, a clutch assembly, a gear assembly, a first shaft, a second shaft, and a brake for braking the first shaft; the clutch assembly includes a first clutch and a second clutch; The planetary gear mechanism includes a sun gear, a planetary gear, a ring gear with external teeth, and a planet carrier with meshing teeth; the sun gear and the ring gear are both meshed with the planetary gear; the sun gear is connected to the first shaft, the output shaft of the engine is connected to the ring gear, the ring gear is connected to the first shaft through the first clutch, and the output shaft of the generator is connected to the second shaft through the second clutch; the second clutch includes a third engaging portion installed on the output shaft of the generator and a fourth engaging portion installed on the second shaft; The gear assembly includes a first gear, a fourth gear, and a second gear and a third gear both installed on the second shaft; the first gear is installed on the output shaft of the generator and meshes with the external teeth of the ring gear; the second gear meshes with the meshing teeth of the planet carrier; The drive motor is connected to the output end through the fourth gear.

2. The hybrid transmission device according to claim 1, characterized in that, The output end is provided with a reduction gear, and the fourth gear and the third gear are respectively meshed on opposite sides of the reduction gear.

3. The hybrid transmission device according to claim 1, wherein The output end is provided with a reduction gear, and the fourth gear and the reduction gear are respectively meshed on opposite sides of the third gear.

4. The hybrid drive device according to claim 1, characterized in that, The output end is provided with a reduction gear, and the reduction gear meshes with the third gear; the fourth gear and the meshing teeth of the planet carrier are respectively meshed on opposite sides of the second gear.

5. The hybrid drive device according to claim 1, characterized in that, The output end is provided with a reduction gear, and the reduction gear meshes with the second gear; the fourth gear meshes with the third gear.

6. The hybrid transmission device according to claim 1, characterized in that, The hybrid power transmission device has a drive motor drive mode; When the hybrid power transmission device is in the drive motor drive mode, the first clutch, the second clutch, and the brake are all disengaged, and the drive motor drives the vehicle wheels to rotate.

7. The hybrid transmission device according to claim 1, characterized in that The hybrid power transmission device has an engine drive mode, and the engine drive mode includes an engine drive first gear mode, an engine drive second gear mode, and an engine drive third gear mode; When the hybrid power transmission device is in the engine drive first gear mode, the drive motor and the generator do not work, the first clutch is closed, the second clutch and the brake are both disengaged, and the engine drives the vehicle wheels to rotate; When the hybrid power transmission device is in the engine drive second gear mode, the drive motor and the generator do not work, the second clutch is closed, the first clutch and the brake are both disengaged, and the engine drives the vehicle wheels to rotate; When the hybrid power transmission device is in the engine drive third gear mode, the drive motor and the generator do not work, the brake is closed, the first clutch and the second clutch are both disengaged, and the engine drives the vehicle wheels to rotate.

8. The hybrid drive device according to claim 1, characterized in that, The hybrid transmission device has a hybrid drive mode, and the hybrid drive mode includes a hybrid drive first gear mode, a hybrid drive second gear mode, and a hybrid drive third gear mode; When the hybrid transmission device is in the hybrid drive first gear mode and the drive motor or the generator is operating, the first clutch is closed, and the second clutch and the brake are both disengaged. If the generator or the drive motor is operating in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor is operating in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity; When the hybrid transmission device is in the hybrid drive second gear mode and the drive motor or the generator is operating, the second clutch is closed, and the first clutch and the brake are both disengaged; If the generator or the drive motor is operating in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor is operating in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity; When the hybrid transmission device is in the hybrid drive third gear mode and the drive motor or the generator outputs power, the brake is closed, and the first clutch and the second clutch are both disengaged; if the generator or the drive motor is operating in the power output state, the engine and the drive motor or the generator that outputs power drive the vehicle wheels to rotate simultaneously; if the generator or the drive motor is operating in the power generation state, the engine drives the vehicle wheels to rotate and drives the drive motor or the generator to generate electricity.

9. The hybrid drive device according to claim 1, characterized in that, The hybrid transmission device has a parking power generation mode; When the hybrid transmission device is in the parking power generation mode, the first clutch, the second clutch, and the brake are all disengaged, and the engine drives the generator to generate electricity.

10. The hybrid drive device according to claim 1, characterized in that, The hybrid transmission device has an extended range mode; When the hybrid transmission device is in the extended range mode, the first clutch, the second clutch, and the brake are all disengaged, the engine drives the generator to generate electricity, and the drive motor drives the vehicle wheels to rotate.

11. A vehicle, characterized in that, Comprising the hybrid transmission device according to any one of claims 1 to 10.

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