Hybrid power system and vehicle

Abstract

The utility model discloses a hybrid power system and a vehicle. The hybrid power system comprises a first shaft, a second shaft, a driving motor, an engine, a differential mechanism and a planet row, the first shaft is in transmission connection with the engine, one end of the second shaft is in transmission connection with the driving motor, and the second shaft is fixedly provided with a first gear to be in transmission connection with a gear ring of the planet row; the second shaft is fixedly provided with a second gear to be in transmission connection with the differential mechanism, the first shaft is provided with a clutch device, and the first shaft is in transmission connection with a sun gear of the planet row through the clutch device. According to the hybrid power system, multiple power transmission modes are provided to adapt to different conditions. In addition, due to the fact that the first shaft is installed on the sun gear of the planet row, and the second shaft is in transmission connection with the gear ring of the planet row, the planet row provides a larger transmission ratio for power transmission of the engine, and transmission is more stable.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle components, mainly hybrid power systems and vehicles. Background Art

[0002] Faced with the increasingly severe energy crisis and environmental pollution situation in the world today, the development of new energy vehicles has become one of the important research directions in the field of vehicle technology. Hybrid drive systems and hybrid vehicles are currently an efficient solution for energy conservation and emission reduction. Their main power components generally include engines, ISG motors and drive motors. Through different power flow coupling controls, they can work in series mode, parallel mode or hybrid mode. The internationally advanced hybrid systems are mainly Toyota's THS system and Honda's i-MMD system. The THS system mainly uses a single planetary gear system to achieve power distribution and convergence between different power sources.

[0003] However, existing hybrid products have the following disadvantages: 1. The axial dimension is long, making it difficult to arrange the entire vehicle in a small cabin; 2. There is no engine direct drive mode or multiple clutch devices are required, resulting in complex control logic and structure. Utility Model Content

[0004] In order to solve at least one of the above-mentioned deficiencies or disadvantages, a hybrid power system and a vehicle with a simple structure are provided.

[0005] In a first aspect, the present disclosure provides a hybrid power system, including a housing, a first shaft, a second shaft, a drive motor, an engine, a differential and a planetary gear, wherein the first shaft is drivingly connected to the engine, one end of the second shaft is drivingly connected to the drive motor, the second shaft is fixedly provided with a first gear for drivingly connecting to the ring gear of the planetary gear, the second shaft is fixedly provided with a second gear for drivingly connecting to the differential, a clutch device is provided on the first shaft, and the clutch device is used to drive the first shaft to connect to the sun gear of the planetary gear or to separate the first shaft from the sun gear of the planetary gear, wherein the planetary gear includes the sun gear, the ring gear, a plurality of planetary gears, and a planet carrier, and the planet carrier is fixed to the housing.

[0006] Optionally, the rotation axis of the sun gear of the planetary gear row rotates around the first shaft, and the axis of the second shaft is parallel to the axis of the first shaft, and the second gear surrounds the outer circumference of the second shaft.

[0007] Optionally, a generator is further included, one end of the first shaft is transmission-connected to the generator, and the other end of the first shaft is transmission-connected to the engine.

[0008] Optionally, when the first shaft is connected to the sun gear of the planetary gear set, the drive motor and the engine can jointly drive the differential through the second shaft, wherein the engine drives the second shaft by driving the first shaft to rotate to sequentially drive the sun gear, planetary gear and ring gear of the planetary gear set.

[0009] Optionally, the generator is electrically connected to the drive motor via a wiring harness to supply power to the drive motor.

[0010] Optionally, a battery pack is also included, and the battery pack is electrically connected to the drive motor to supply power to the drive motor.

[0011] Optionally, the clutch device includes a driving device and a meshing assembly, wherein the meshing assembly is sleeved outside the first shaft and can drive the meshing assembly to rotate when the first shaft rotates, and the meshing assembly can slide relative to the first shaft between a first position and a second position. When the meshing assembly is located at the first position, the meshing assembly meshes with the sun gear of the planetary row, so that the first shaft and the sun gear are transmission-connected. When the meshing assembly is located at the second position, the meshing assembly leaves the sun gear of the planetary row, and the driving device is used to drive the meshing assembly to move from the second position to the first position, wherein the driving device is installed in a box of the vehicle for placing a hybrid power system.

[0012] Optionally, the driving device includes an electromagnetic coil, and the electromagnetic coil generates a magnetic field when energized to drive the engaging component to move.

[0013] Optionally, the driving device includes a motor or a cylinder to drive the engaging assembly to move.

[0014] Optionally, the first shaft is provided with a mounting seat and an elastic member, the mounting seat is fixedly mounted on the first shaft, one end of the elastic member abuts against the mounting seat, and the other end of the elastic member abuts against the engaging component to push the engaging component to move from the first position to the second position.

[0015] In a second aspect, the present disclosure provides a vehicle comprising wheels and a hybrid power system as described in any embodiment of the first aspect.

[0016] In the hybrid power system disclosed in the present invention, the power of the engine is transmitted from the first shaft to the second shaft, and then to the differential through the cooperation of the clutch device and the planetary gear. At the same time, the drive motor can also be connected to the differential through the second shaft to transmit power, so that the user can adjust the way of transmitting power to the differential according to the situation. Secondly, the present invention is connected to the engine and the drive motor through the first shaft and the second shaft respectively, and the first shaft transmits power to the differential through the second shaft, so that only one clutch device is needed to complete the switching between the engine and the drive motor, making the whole structure relatively simple. In addition, since the first shaft is installed on the sun gear of the planetary gear, and the second shaft is connected to the ring gear of the planetary gear, the planetary gear provides a larger transmission ratio for the power transmission of the engine, making the transmission more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a partial structure of the hybrid power structure disclosed in the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the planetary gear.

[0019] Figure 3 for Figure 1 Exploded view of the components on the first axis.

[0020] Figure 4 It is a wireframe diagram of a partial structure of the hybrid power structure disclosed in the present invention.

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the middle part.

[0022] Figure 6 for Figure 5 Schematic diagram of section A in .

[0023] Symbols in the figure: 100, first shaft; 110, clutch device; 111, drive device; 112, meshing assembly; 1121, meshing member; 1122, push ring; 120, spline; 130, spline; 140, elastic member; 150, mounting seat; 160, needle bearing; 170, annular protrusion; 180, first retaining ring; 190, second retaining ring; 200, second shaft; 210, first gear; 220, second gear; 230, spline; 300, drive motor; 400, engine; 500, differential; 600, planetary row; 610, sun gear; 611, first meshing tooth; 620, planetary gear; 630, ring gear; 640, planet carrier; 700, generator; 800, battery pack; 900, processing device; X, first direction; M, axis of the first shaft; N, axis of the second shaft. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0027] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] Figure 1 A schematic diagram showing a partial structure of the hybrid power structure of the present disclosure is shown. Figure 1As shown, the hybrid structure of the present disclosure includes a first shaft 100, a second shaft 200, a differential 500 and a planetary gear 600. The first shaft 100 is drivingly connected to the engine 400 of the hybrid structure, one end of the second shaft 200 is drivingly connected to the drive motor 300 of the hybrid structure, the second shaft 200 is fixedly provided with a first gear 210 to be drivingly connected to the ring gear 630 of the planetary gear 600, the second shaft 200 is fixedly provided with a second gear 220 to be drivingly connected to the differential 500, and the first shaft 100 is provided with a clutch device 110, through which the first shaft 100 is drivingly connected to the sun gear 610 of the planetary gear 600 or the first shaft 100 is separated from the sun gear 610 of the planetary gear 600, wherein the planetary gear 600 includes a sun gear 610, a ring gear 630, a plurality of planetary gears 620, and a planet carrier 640. In addition, the hybrid system includes a housing to accommodate the first shaft 100, the second shaft 200, the differential 500 and the planetary gear 600, and the planetary carrier 640 is fixed to the housing, so that when the sun gear 610 rotates, the planetary carrier does not rotate with it, but is relatively fixed, ensuring that the power of the sun gear 610 can be transmitted to the ring gear 630 through the planetary gear. In some optional embodiments, the housing is a housing of a hybrid box of a vehicle.

[0029] It should be noted that in the above scheme, if the drive motor 300 is used to transmit power, the drive motor 300 can be started to drive the second shaft 200 to rotate, and the power can be transmitted to the differential 500 through the second gear 220 of the second shaft 200. If the engine 400 is used to transmit power, the first shaft 100 can be firstly connected to the sun gear 610 of the planetary gear 600 through the clutch device 110, and then the first shaft 100 can be driven to rotate by the engine 400, and then the power is transmitted from the engine 400 to the first shaft 100, the sun gear 610, the planetary gear 620, the ring gear 630, the second shaft 200, and finally to the differential 500. At the same time, if it is desired to drive the motor 300 and the engine 400 to transmit power together, the first shaft 100 can be connected to the sun gear 610 of the planetary gear 600 through the clutch device 110, and then the first shaft 100 is driven to rotate by the engine 400, and the power is transmitted from the engine 400 to the first shaft 100, the sun gear 610, the planetary gear 620, the ring gear 630, and the second shaft 200 in sequence. At the same time, the drive motor 300 transmits the power to the second shaft 200, and finally the drive motor 300 and the engine 400 transmit the power to the differential 500 through the second shaft 200.

[0030] It should be noted that in a conventional gasoline vehicle, when multiple power output structures are used to achieve power transmission, a complete synchronizer is provided to achieve synchronous driving of two power output structures. However, in a hybrid power system of a certain embodiment of the present disclosure, the processing device 900 is respectively connected to the drive motor 300 and the engine 400 by signal, so the processing device 900 can read the data of the drive motor 300 and the engine 400, and adjust the rotation speed of the two according to the data of the two to achieve synchronization.

[0031] In addition, continue to read Figure 1 , the first gear 210 of the second shaft 200 is a spur gear, and the second gear 220 of the second shaft 200 is a helical gear. A spline 230 is formed at one end of the second shaft 200 to be connected to the rotor shaft of the drive motor 300. The end of the first shaft 100 close to the engine 400 is a spline 120. In some optional embodiments, the spline 120 at this end is connected to the torsional vibration damper of the engine 400. The end of the second shaft 200 close to the generator 700 is also a spline 130, and the spline 130 is connected to the rotor of the generator 700.

[0032] Optional, such as Figure 1-3 As shown, the sun gear 610 of the planetary gear 600 rotates around the first shaft 100, and the axis N of the second shaft is parallel to the axis M of the first shaft, and the second gear 220 surrounds the outer periphery of the second shaft 200. It should be noted that since the first shaft 100 and the second shaft 200 are parallel to each other and the power is transmitted laterally through the planetary gear 600, the space occupied by the hybrid system in the axial direction can be effectively reduced, which is more suitable for a small cabin.

[0033] Optional, such as Figure 4 As shown, the hybrid system also includes a generator 700. One end of the first shaft 100 is transmission-connected to the generator 700, and the other end of the first shaft 100 is transmission-connected to the engine 400. Through the above design, the hybrid system of the present disclosure can have an idle power generation mode, that is, the engine 400 transmits power to the generator 700 through the first shaft 100, so that the generator 700 performs a power generation mode. Specifically, the generator 700 includes a stator and a rotor. By rotating the rotor relative to the stator to form a relative cutting magnetic line movement, an induced potential will be generated on the stator. At this time, if the stator and the external circuit are connected to form a closed circuit, a current output can be formed. The first shaft 100 is connected to the rotor of the generator 700. When the first shaft 100 is driven by the engine 400, the rotor of the generator 700 will also be driven, thereby forming a relative cutting magnetic line movement to allow the generator 700 to generate electricity. In addition, the generator 700 is electrically connected to the drive motor 300 through a wiring harness to power the drive motor 300.

[0034] Optionally, the hybrid power system further includes a battery pack 800 , which is electrically connected to the drive motor 300 to supply power to the drive motor 300 .

[0035] In some optional embodiments, such as Figure 5 and 6 As shown, the clutch device 110 includes a driving device 111 and a meshing component 112. The meshing component 112 is sleeved outside the first shaft 100 and can drive the meshing component 112 to rotate when the first shaft 100 rotates. The meshing component 112 can slide relative to the first shaft 100 between a first position and a second position. When the meshing component 112 is located at the first position, the meshing component 112 meshes with the sun gear 610 of the planetary gear 600, so that the first shaft 100 and the sun gear 610 are transmission-connected. When the meshing component 112 is located at the second position, the meshing component 112 leaves the sun gear 610 of the planetary gear 600, and the driving device 111 is used to drive the meshing component 112 to move from the second position to the first position.

[0036] Specifically, the driving device 111 includes an electromagnetic coil, and the electromagnetic coil generates a magnetic field after being energized to drive the engagement component 112 to move. In addition, in other optional embodiments, the driving device 111 can be a motor, a cylinder, etc.

[0037] Optionally, the first shaft 100 is provided with a mounting seat 150 and an elastic member 140, the mounting seat 150 is fixedly mounted on the first shaft 100, one end of the elastic member 140 abuts against the mounting seat 150, and the other end of the elastic member 140 can abut against the meshing component 112 to push the meshing component 112 to move from the first position to the second position, so that the meshing component 112 leaves the sun gear 610 of the planetary gear 600, and the rotation of the meshing component 112 cannot drive the sun gear 610 to rotate.

[0038] Specifically, the first shaft 100 is sequentially arranged with a driving device 111, an elastic member 140, a mounting seat 150 and a needle bearing 160 along a first direction X, wherein the first direction is the axial direction of the first shaft 100, and points from the end of the first shaft 100 connected to the engine 400 to the end of the first shaft 100 connected to the generator 700. The needle bearing 160 is used to mount the sun gear 610 of the planetary gear 600, and the sun gear 610 can be rotatably mounted on the needle bearing 160. In addition, the first shaft 100 is provided with an annular protrusion 170 and a first clamping ring 180 to mount the mounting seat 150. Specifically, the mounting seat 150 is restricted between the annular protrusion 170 and the first clamping ring 180, and a groove is provided on the side of the mounting seat 150 facing the engine 400 to mount one end of the elastic member 140.

[0039] More specifically, the engagement assembly 112 includes an engagement member 1121 and a push ring 1122 connected to each other, the engagement member 1121 having a through hole, and a plurality of third teeth meshed with a plurality of first teeth 611 of the sun gear 610 are formed on the through hole. When the engagement assembly 112 is located at the first position, the plurality of third teeth of the engagement member 1121 mesh with the plurality of first teeth 611 of the sun gear 610, so that the first shaft 100 is in transmission connection with the sun gear 610. Secondly, the other end of the elastic member 140 can pass through the engagement member 1121 to abut against the push ring 1122. In addition, a through hole is provided on the driving device 111 for the push ring 1122 to be inserted. In addition, the cross-sections of the first shaft 100 and the second shaft 200 are circular in most cases, and a protrusion is formed outward at a position corresponding to the position of the first shaft 100 and the push ring 1122, and the push ring 1122 is formed with a corresponding groove, so that when the first shaft 100 rotates, the push ring 1122 can be driven, thereby achieving the purpose of driving the meshing component 112 to rotate together when the first shaft 100 rotates. In addition, there are various ways to achieve that the first shaft 100 can drive the meshing component 112 to rotate together. For example: the push ring 1122 forms a protrusion inward (i.e., extends in the direction of the first shaft) to be inserted into the first shaft, and at the same time, the first shaft is formed with a guide groove to guide the movement of the protrusion, which can also achieve the solution that when the first shaft 100 rotates, the meshing component 112 can be driven to rotate together.

[0040] In addition, a second clamping ring 190 is disposed on the first shaft 100 and the second clamping ring 190 is used to limit the position of the push ring 1122 .

[0041] Under normal circumstances, the electromagnetic coil of the driving device 111 is not energized, and the meshing member 1121 will not be inserted into the sun gear 610. Once the electric field coil is energized, the driving device 111 will generate a magnetic field, and the push ring 1122 is pushed by the magnetic field to drive the meshing assembly 112 as a whole to move from the second position to the first position. In addition, since the through hole of the meshing member 1121 is larger than the cross-sectional area of ​​the mounting seat 150 and the elastic member 140, during the period when the meshing assembly 112 moves from the second position to the first position, the top of the meshing member 1121 can pass through the mounting seat 150 and the elastic member 140 to engage with the sun gear.

[0042] In some embodiments, the push ring 1122 is made of steel, which may be No. 10 steel. The coupling sleeve is carburized steel, which may be 20 crmnt i, and when the driving device 111 forms a magnetic field, the push ring 1122 can be pushed to move.

[0043] It should be noted that a plurality of first teeth 611 are formed on the sun gear 610 for meshing with the meshing member 1121 , and a plurality of second teeth are formed on the sun gear 610 for meshing with the planetary gear 620 .

[0044] In addition, the driving device 111 can be mounted on a box of the vehicle for placing the hybrid power system by screws.

[0045] In addition, the present disclosure provides a vehicle, which includes wheels and a hybrid power system, wherein the wheels are connected to a differential 500. The wheels are connected to the differential 500, and the hybrid power system is used to drive the wheels.

[0046] It should be noted that if Figure 4 As shown, the processing device 900 in the present disclosure is connected to the drive motor 300, the engine 400, the generator 700 and the battery pack 800 by signal. Therefore, the processing device 900 can control the start and stop of the drive motor 300 to drive the second shaft 200 to rotate. At the same time, the processing device 900 can control the mode conversion of the drive motor 300, so that when the second shaft 200 rotates, the drive motor 300 recovers energy, converts power into electricity, and transmits the electricity to the battery pack 800. Secondly, the processing device 900 is connected to the battery pack 800 by signal to control the battery pack 800 to provide power to other structures. In addition, the processing device 900 can also control the start and stop of the engine 400 and the generator 700 and the output power to facilitate the synchronization of the first shaft 100 and the second shaft 200. Specifically, sometimes the meshing assembly 112 and the sun gear 610 may not correspond to each other, so the meshing assembly 112 may not mesh with the sun gear 610 under the drive of the driving device 111. At this time, the engine 400 can drive the first shaft 100 to rotate through the control of the processing device 900, so that the meshing assembly 112 corresponds to the position of the sun gear 610, and the meshing assembly 112 can smoothly move from the second position to the first position to mesh with the sun gear 610. It should be noted that since the engine 400 and the drive motor 300 are both connected to the processing device 900, and the structural parameters of the hybrid power system such as the first shaft 100, the second shaft 200, and the planetary gear 600 are all placed in the processing device 900. Therefore, the processing device 900 can calculate the rotation status of the meshing component 112 and the position status of the sun gear 610, and then the processing device 900 can adjust the rotation speed of the first shaft 100 and the second shaft 200 according to the situation so that the position of the meshing component 112 corresponds to that of the sun gear 610, and the meshing component 112 can be inserted into the sun gear 610.

[0047] The processing device 900 may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0048] In the hybrid power system and the vehicle thereof disclosed in the present invention, there are at least six modes:

[0049] 1. Idle power generation mode: The engine 400 directly transmits power to the rotor of the generator 700 through the first shaft 100, so that the generator 700 starts to generate electricity.

[0050] 2. Series working mode: The engine 400 directly transmits power to the generator 700 through the first shaft 100 for power generation. The current flows to the battery pack 800 in sequence through the wiring harness (for example, a high-voltage line). The battery pack 800 then provides energy to the drive motor 300, so that the drive motor 300 drives the second shaft 200 to rotate, and the second shaft 200 provides power to the differential 500 through the cooperation of the second gear 220 and the differential 500. Finally, the differential 500 transmits the power to the wheels.

[0051] 3. Pure electric mode: The battery pack 800 provides power to the drive motor 300, the drive motor 300 drives the second shaft 200 to rotate, the second shaft 200 provides power to the differential 500 through the second gear 220, and finally the differential 500 transmits the power to the wheels.

[0052] 4. Parallel mode:

[0053] First, the battery pack 800 provides power to the driving motor 300, and the driving motor 300 drives the second shaft 200 to rotate;

[0054] Secondly, the engine 400 drives the first shaft 100 to rotate, and the first shaft 100 drives the sun gear 610 to rotate. At this time, the electromagnetic coil in the driving device 111 generates an axial force after being energized, pushing the push ring 1122 to drive the meshing member 1121 to be fixedly connected with the ring gear 630 of the sun gear 610. In addition, the position of the planetary gear 620 remains unchanged, and the sun gear 610 drives the ring gear 630 to rotate. Since the ring gear 630 is connected to the second shaft 200 by transmission, the power can be transmitted from the ring gear 630 to the second shaft 200. The two powers are coupled at the second shaft 200 and jointly transmit the power to the wheels.

[0055] 5. Direct drive mode of the engine 400: When the electromagnetic coil in the drive device 111 is energized, an axial force is generated, which pushes the push ring 1122 to drive the meshing member 1121 to mesh with the sun gear 610, thereby transmitting power to the second shaft 200 through the planetary gear 600, and then to the differential 500 through the second shaft 200, and then to the wheels.

[0056] 6. Braking energy recovery: The energy of the vehicle during braking and sliding can be transferred to the second shaft 200 through the differential 500, and then recovered through the drive motor 300.

[0057] The hybrid power system of the present disclosure can transmit power to the differential 500 through the engine 400 and / or the drive motor 300, so that the user can adjust the way of transmitting power to the differential 500 according to the situation. In addition, since the first shaft 100 is installed on the sun gear 610 of the planetary gear 600, and the second shaft 200 is connected to the ring gear 630 of the planetary gear 600, the planetary gear 600 provides a larger transmission ratio for the power transmission of the engine 400, making the transmission more stable.

[0058] At the same time, the engine 400 and the drive motor 300 are respectively connected to the control unit signal, so that the control unit can control the speed of the engine 400 and the drive motor 300 to make the engine 400 and the drive motor 300 cooperate with each other, and then simultaneously transmit power to the differential 500 through the second shaft 200.

[0059] In addition, the engine 400 and the generator 700 are located at both ends of the first shaft, so that when the engine 400 is started, part of the energy can be transferred to the generator 700, and the generator 700 is electrically connected to the battery pack 800 to store the part of the energy, thereby improving the energy utilization of the entire vehicle.

[0060] Furthermore, the hybrid power system disclosed in the present invention only requires one clutch device to achieve the switching of different power sources of the vehicle, thereby reducing the complexity of the entire system and facilitating production and manufacturing.

[0061] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A hybrid power system, characterized in that: The invention comprises a housing, a first shaft, a second shaft, a drive motor, an engine, a differential and a planetary row, wherein the first shaft is drivingly connected to the engine, one end of the second shaft is drivingly connected to the drive motor, the second shaft is fixedly provided with a first gear for drivingly connecting to the ring gear of the planetary row, the second shaft is fixedly provided with a second gear for drivingly connecting to the differential, a clutch device is provided on the first shaft, through which the first shaft is drivingly connected to the sun gear of the planetary row or the first shaft is separated from the sun gear of the planetary row, wherein the planetary row comprises the sun gear, the ring gear, a plurality of planetary gears and a planet carrier, and the planet carrier is fixed to the housing.

2. The hybrid power system according to claim 1, characterized in that: The rotation shaft of the sun gear of the planetary gear row rotates around the first shaft, and the axis of the second shaft is parallel to the axis of the first shaft, and the second gear surrounds the outer circumference of the second shaft.

3. The hybrid power system according to claim 1, characterized in that: It also includes a processing device, which is connected to the drive motor and the engine signal respectively.

4. The hybrid power system according to claim 1, characterized in that: When the first shaft is drivingly connected to the sun gear of the planetary gear set, the drive motor and the engine can jointly drive the differential through the second shaft, wherein the engine drives the second shaft by driving the first shaft to rotate to sequentially drive the sun gear, planetary gears and ring gear of the planetary gear set.

5. The hybrid power system according to claim 1, characterized in that: It also includes a generator, one end of the first shaft is drivingly connected to the generator, the other end of the first shaft is drivingly connected to the engine, and the generator is electrically connected to the drive motor through a wiring harness to supply power to the drive motor.

6. The hybrid power system according to claim 1, characterized in that: A battery pack is also included, and the battery pack is electrically connected to the drive motor to supply power to the drive motor.

7. The hybrid power system according to claim 1, characterized in that: The clutch device includes a driving device and a meshing assembly, wherein the meshing assembly is sleeved outside the first shaft and can drive the meshing assembly to rotate when the first shaft rotates, and the meshing assembly can slide relative to the first shaft between a first position and a second position. When the meshing assembly is located at the first position, the meshing assembly meshes with the sun gear of the planetary row, so that the first shaft and the sun gear are transmission-connected. When the meshing assembly is located at the second position, the meshing assembly leaves the sun gear of the planetary row, and the driving device is used to drive the meshing assembly to move from the second position to the first position, wherein the driving device is installed in a box of the vehicle for placing a hybrid power system.

8. The hybrid power system according to claim 7, characterized in that: The driving device comprises an electromagnetic coil, and the electromagnetic coil generates a magnetic field after being energized to drive the engagement component to move; or The driving device includes a motor or a cylinder to drive the engaging component to move.

9. The hybrid power system according to claim 7, characterized in that: The first shaft is provided with a mounting seat and an elastic member, the mounting seat is fixedly mounted on the first shaft, one end of the elastic member abuts against the mounting seat, and the other end of the elastic member can abut against the engaging component to push the engaging component to move from the first position to the second position.

10. A vehicle, characterized in that: It comprises wheels and the hybrid power system according to any one of claims 1 to 9, wherein the wheels are connected to the differential, and the hybrid power system is used to drive the wheels.

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