阅读说明：本技术 混合动力系统和汽车 (Hybrid power system and automobile ) 是由 汪敏 方志勤 田维琴 尹良杰 于 2020-12-07 设计创作，主要内容包括：本发明公开一种混合动力系统和汽车,混合动力系统包括变速装置和动力装置,变速装置包括离合机构和传动机构,离合机构包括第一离合器和第二离合器,传动机构包括第一传动组件、以及传动轴均与第一传动组件的传动轴平行的第二传动组件和第三传动组件,第一传动组件转动用于带动第二传动组件和/或第三传动组件转动,且第二传动组件转动和第三传动组件转动均可用于带动汽车的差速器的输入轴转动,动力装置包括电机,电机的输出轴与第一传动组件的传动轴通过第一离合器连接,电机的输入轴用于与汽车的燃料发动机的输出轴通过第二离合器连接。本发明的混合动力系统沿第一传动组件的传动轴轴向容易布置于发动机舱内,布置成本低。(The invention discloses a hybrid power system and an automobile, wherein the hybrid power system comprises a speed changing device and a power device, the speed changing device comprises a clutch mechanism and a transmission mechanism, the clutch mechanism comprises a first clutch and a second clutch, the transmission mechanism comprises a first transmission assembly, a second transmission assembly and a third transmission assembly, transmission shafts of the second transmission assembly and the third transmission assembly are parallel to a transmission shaft of the first transmission assembly, the first transmission assembly rotates to drive the second transmission assembly and/or the third transmission assembly to rotate, the second transmission assembly and the third transmission assembly can both drive an input shaft of a differential mechanism of the automobile to rotate, the power device comprises a motor, an output shaft of the motor is connected with the transmission shaft of the first transmission assembly through the first clutch, and an input shaft of the motor is connected with an output shaft of a fuel engine of the automobile through the second clutch. The hybrid power system is easy to arrange in the engine compartment along the axial direction of the transmission shaft of the first transmission assembly, and the arrangement cost is low.)

1. A hybrid powertrain system, comprising:

the transmission device comprises a clutch mechanism and a transmission mechanism, the clutch mechanism comprises a first clutch and a second clutch, the transmission mechanism comprises a first transmission assembly, a second transmission assembly and a third transmission assembly, transmission shafts of the second transmission assembly and the third transmission assembly are parallel to transmission shafts of the first transmission assembly, the first transmission assembly rotates to drive the second transmission assembly and/or the third transmission assembly to rotate, and the second transmission assembly and the third transmission assembly can both rotate to drive an input shaft of a differential mechanism of an automobile to rotate;

and the power device comprises a motor, an output shaft of the motor is connected with a transmission shaft of the first transmission assembly through the first clutch, and an input shaft of the motor is used for being connected with an output shaft of a fuel engine of the automobile through the second clutch.

2. The hybrid system according to claim 1, wherein the clutch mechanism further includes a third clutch, the transmission mechanism further includes a fourth transmission assembly, a transmission shaft of the fourth transmission assembly is sleeved on an outer circumference of a transmission shaft of the first transmission assembly, the fourth transmission assembly rotates to drive the second transmission assembly and/or the third transmission assembly to rotate, and the transmission shaft of the fourth transmission assembly is connected with an output shaft of the motor through the third clutch.

3. A hybrid powertrain according to claim 2, wherein the first transmission assembly includes a first driveshaft and a first drive wheel connected to the first driveshaft, the first transmission shaft is connected with the first clutch, the second transmission assembly comprises a second transmission shaft, a first synchronizer connected with the second transmission shaft and a first driven wheel which is sleeved on the second transmission shaft in an empty way, the second transmission shaft is arranged in parallel with the first transmission shaft, the first driving wheel is meshed with the first driven wheel, the first synchronizer is used for being connected with a first shifting fork of the automobile, the first shifting fork is shifted to drive the first synchronizer to move along the axial direction of the second transmission shaft, the first synchronizer can be connected with or disconnected from the first driven wheel, and the second transmission shaft rotates to drive the input shaft of the differential mechanism to rotate.

4. The hybrid system according to claim 3, wherein the first transmission assembly further comprises a second driving wheel connected to the first transmission shaft, the third transmission assembly comprises a third transmission shaft, a second synchronizer connected to the third transmission shaft, and a second driven wheel freely sleeved on the third transmission shaft, the third transmission shaft is arranged in parallel with the first transmission shaft, the second driving wheel is engaged with the second driven wheel, the second synchronizer is used for being connected to a second shifting fork of the automobile, the second synchronizer is driven to move along an axial direction of the third transmission shaft by shifting the second shifting fork, the second synchronizer can be connected to or disconnected from the second driven wheel, and the third transmission shaft rotates to drive an input shaft of the differential to rotate.

5. The hybrid system according to claim 4, wherein the fourth transmission assembly includes a fourth transmission shaft and a third driving wheel connected to the fourth transmission shaft, the fourth transmission shaft is connected to the third clutch, the second transmission assembly further includes a third synchronizer connected to the second transmission shaft and a third driven wheel freely sleeved on the second transmission shaft, the third driving wheel is engaged with the third driven wheel, the third synchronizer is used for being connected to a third shift fork of the automobile, the third synchronizer is driven to move along the axial direction of the second transmission shaft by shifting the third shift fork, and the third synchronizer can be connected to or disconnected from the third driven wheel.

6. The hybrid power system as claimed in claim 5, wherein the third transmission assembly further includes a fourth driven wheel sleeved on the third transmission shaft in an empty manner, the second synchronizer is disposed between the second driven wheel and the fourth driven wheel, the third driving wheel is engaged with the fourth driven wheel, and the second synchronizer can be connected with or disconnected from the fourth driven wheel by shifting the second fork to drive the second synchronizer to move along the axial direction of the third transmission shaft.

7. The hybrid system according to any one of claims 1 to 6, further comprising a power battery electrically connected to the motor, the power battery being used to feed the motor.

8. The hybrid system of any one of claims 1-6, further comprising an electrical storage device electrically connected with the electric machine.

9. The hybrid system according to any one of claims 1 to 6, wherein the second clutch is an electrically controlled clutch.

10. A vehicle, characterized in that the vehicle comprises a hybrid system according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of automobiles, in particular to a hybrid power system and an automobile.

Background

With the continuous deepening of the environmental protection concept, the requirements of the nation and consumers on the oil consumption and the emission of the automobile are higher and higher, and particularly, the popularization of the six-emission policy and the regulation of the nation and the double-point measures and the popularization of each oil-saving measure are promoted. As a typical fuel saving measure, the plug-in hybrid electric vehicle can ensure daily commuting driving of a city and can cover long-distance driving of the city, the plug-in hybrid electric vehicle usually adopts a transverse P2 plug-in hybrid scheme, the transverse P2 plug-in hybrid scheme is used for realizing a hybrid power function by additionally arranging a clutch and a driving motor between a speed change device and a fuel engine, however, the axial length of the speed change device along a transmission shaft is increased more, the arrangement of the whole engine compartment is greatly influenced, and the transverse P2 plug-in hybrid is difficult to arrange in the axial direction and has high cost.

In view of the above-mentioned drawbacks, there is a need for a new hybrid powertrain and vehicle.

Disclosure of Invention

The invention mainly aims to provide a hybrid power system and an automobile, and aims to solve the problems that the existing transverse P2 is difficult to arrange in an engine compartment along the axial direction of a speed changing device in an electric-plug hybrid mode and the arrangement cost is high.

In order to achieve the above object, the present invention provides a hybrid system including a transmission and a power unit, the speed change device comprises a clutch mechanism and a transmission mechanism, the clutch mechanism comprises a first clutch and a second clutch, the transmission mechanism comprises a first transmission component, a second transmission component and a third transmission component, wherein the transmission shaft of the second transmission component is parallel to the transmission shaft of the first transmission component, the first transmission component is used for driving the second transmission component and/or the third transmission component to rotate, and the rotation of the second transmission component and the rotation of the third transmission component can be used for driving the input shaft of the differential mechanism of the automobile to rotate, the power device comprises a motor, an output shaft of the motor is connected with a transmission shaft of the first transmission assembly through the first clutch, and the input shaft of the motor is used for being connected with the output shaft of the fuel engine of the automobile through the second clutch.

Preferably, the clutch mechanism further comprises a third clutch, the transmission mechanism further comprises a fourth transmission assembly, a transmission shaft of the fourth transmission assembly is sleeved on the periphery of the transmission shaft of the first transmission assembly in an empty mode, the fourth transmission assembly rotates to drive the second transmission assembly and/or the third transmission assembly to rotate, and the transmission shaft of the fourth transmission assembly is connected with an output shaft of the motor through the third clutch.

Preferably, first transmission assembly include first transmission shaft and with the first action wheel that first transmission shaft is connected, first transmission shaft with first clutch is connected, second transmission assembly include the second transmission shaft, with first synchronizer that the second transmission shaft is connected and the empty cover is in the epaxial first follow driving wheel of second transmission, the second transmission shaft with first transmission shaft parallel arrangement, first action wheel with first mesh from the driving wheel, first synchronizer be used for with the first shift fork of car is connected, through stirring first shift fork drive first synchronizer is followed the axial displacement of second transmission shaft, first synchronizer can with first follow driving wheel is connected or is disconnected, the second transmission shaft rotates and is used for driving differential's input shaft rotates.

Preferably, first drive assembly still include with the second action wheel that first transmission shaft is connected, third drive assembly include the third transmission shaft, with second synchronizer that the third transmission shaft is connected and the idle work are in the epaxial second of third transmission is followed the driving wheel, the third transmission shaft with first transmission shaft parallel arrangement, the second action wheel with the second is followed the driving wheel and is meshed, the second synchronizer be used for with the second shift fork of car is connected, through stirring the drive of second shift fork the second synchronizer is followed the axial displacement of third transmission shaft, the second synchronizer can with the second is followed the driving wheel and is connected or break off, the third transmission shaft rotates and is used for driving differential mechanism's input shaft rotates.

Preferably, the fourth transmission assembly includes the fourth transmission shaft and with the third action wheel that the fourth transmission shaft is connected, the fourth transmission shaft with the third clutch is connected, the second transmission assembly still include with third synchronizer that the second transmission shaft is connected and empty sleeve be in the epaxial third of second transmission is followed driving wheel, the third action wheel with the third is followed driving wheel meshing, the third synchronizer be used for with the third shift fork of car is connected, through stirring the drive of third shift fork the third synchronizer is followed the axial displacement of second transmission shaft, the third synchronizer can with the third is followed driving wheel and is connected or break off.

Preferably, the third transmission assembly further comprises a fourth driven wheel sleeved on the third transmission shaft in a hollow mode, the second synchronizer is arranged between the second driven wheel and the fourth driven wheel, the third driving wheel is meshed with the fourth driven wheel, the second synchronizer is driven to move along the axial direction of the third transmission shaft by shifting the second shifting fork, and the second synchronizer can be connected with or disconnected from the fourth driven wheel.

Preferably, the hybrid system further comprises a power battery electrically connected with the motor, and the power battery is used for feeding power to the motor.

Preferably, the hybrid system further includes an electrical storage device electrically connected to the electric machine.

Preferably, the second clutch is an electronically controlled clutch.

Preferably, the vehicle comprises a hybrid system as described above.

In the technical scheme of the invention, the hybrid power system comprises a speed change device and a power device, the speed change device comprises a clutch mechanism and a transmission mechanism, the clutch mechanism comprises a first clutch and a second clutch, the transmission mechanism comprises a first transmission component, a second transmission component and a third transmission component, transmission shafts of the second transmission component and the third transmission component are both parallel to a transmission shaft of the first transmission component, the power device comprises a motor, an output shaft of the motor is connected with the transmission shaft of the first transmission component through the first clutch, an input shaft of the motor is connected with an output shaft of a fuel engine of an automobile through the second clutch, when the first clutch and the second clutch are both closed, the fuel engine drives the input shaft of the motor to rotate, the output shaft of the motor rotates to drive the transmission shaft of the first transmission component to rotate, the first transmission component rotates to drive the second transmission component and/or the third transmission component to rotate, and the rotation of the second transmission assembly and the rotation of the third transmission assembly can drive the input shaft of the differential mechanism of the automobile to rotate. According to the hybrid power system, the first transmission assembly, the second transmission assembly and the third transmission assembly are arranged, and the transmission shafts of the second transmission assembly and the third transmission assembly are parallel to the transmission shaft of the first transmission assembly, so that the length arrangement along the axial direction of the transmission shaft of the first transmission assembly is shortened, the hybrid power system is easy to arrange in an engine compartment, and the arrangement cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a hybrid powertrain according to an embodiment of the present invention;

FIG. 2 is a numbered complementary schematic illustration of the hybrid powertrain system of FIG. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Speed changing device	1224	Third synchronizer
11	Clutch mechanism	1225	Third driven wheel
				111	First clutch	123	Third drive assembly
112	Second clutch	1231	Third drive shaft
				113	Third clutch	1232	Second synchronizer
12	Transmission mechanism	1233	Second driven wheel
				121	First transmission assembly	1234	Fourth driven wheel
1211	First transmission shaft	124	Fourth drive assembly
				1212	First driving wheel	1241	Fourth transmission shaft
1213	Second driving wheel	1242	Third driving wheel
				122	Second transmission assembly	2	Power plant
1221	Second transmission shaft	21	Electric machine
				1222	First synchronizer	100	Differential gear
1223	First driven wheel	200	Fuel engine

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a hybrid power system and an automobile, and aims to solve the problems that the existing transverse P2 plug-in hybrid is difficult to arrange in an engine compartment along the axial direction of a speed changing device and the arrangement cost is high.

Referring to fig. 1, the hybrid power system includes a transmission 1 and a power device 2, the transmission 1 includes a clutch 11 and a transmission 12, the clutch 11 includes a first clutch 111 and a second clutch 112, the transmission 12 includes a first transmission assembly 121, and a second transmission assembly 122 and a third transmission assembly 123 having transmission shafts parallel to the transmission shaft of the first transmission assembly 121, the first transmission assembly 121 rotates to drive the second transmission assembly 122 and/or the third transmission assembly 123 to rotate, and the rotation of the second transmission assembly 122 and the rotation of the third transmission assembly 123 can both be used for driving the input shaft of the differential 100 of the automobile to rotate, the power device 2 comprises a motor 21, the output shaft of the motor 21 is connected with the transmission shaft of the first transmission assembly 121 through a first clutch 111, and the input shaft of the motor 21 is used for being connected with the output shaft of the fuel engine 200 of the automobile through a second clutch 112.

The hybrid power system comprises a speed change device 1 and a power device 2, wherein the speed change device 1 comprises a clutch mechanism 11 and a transmission mechanism 12, the clutch mechanism 11 comprises a first clutch 111 and a second clutch 112, the transmission mechanism 12 comprises a first transmission assembly 121, a second transmission assembly 122 and a third transmission assembly 123, transmission shafts of which are parallel to those of the first transmission assembly 121, the power device 2 comprises a motor 21, an output shaft of the motor 21 is connected with a transmission shaft of the first transmission assembly 121 through the first clutch 111, an input shaft of the motor 21 is connected with an output shaft of a fuel engine 200 of an automobile through the second clutch 112, when the first clutch 111 and the second clutch 112 are both closed, the fuel engine 200 drives the input shaft of the motor 21 to rotate, the output shaft of the motor 21 rotates to drive the transmission shaft of the first transmission assembly to rotate, the first transmission assembly 121 rotates to drive the second transmission assembly 122 and/or the third transmission assembly 123 to rotate, and the rotation of the second transmission assembly 122 and the rotation of the third transmission assembly 123 can drive the input shaft of the differential 100 of the automobile to rotate. According to the hybrid power system, the first transmission assembly 121, the second transmission assembly 122 and the third transmission assembly 123 with transmission shafts parallel to the transmission shaft of the first transmission assembly 121 are arranged, so that the length of the hybrid power system in the axial direction of the transmission shaft of the first transmission assembly 121 is shortened, the hybrid power system is easy to arrange in an engine compartment, and the arrangement cost is low. The hybrid system of the present invention can be driven by the motor 21, and the vehicle can be directly driven by the motor 21 to run by closing the first clutch 111 and opening the second clutch 112. In addition, the hybrid power system can realize the reverse gear function through the reverse rotation of the motor 21, the first clutch 111 is closed, the motor 21 rotates reversely, the transmission shaft of the first transmission assembly 121 rotates reversely to drive the transmission shaft of the second transmission assembly 122 or the third transmission assembly 123 to rotate forwardly to realize the reverse gear driving, so that the reverse gear structure is not required to be additionally designed, and the whole structure of the hybrid power system is compact. The working conditions that the hybrid power system of the invention can participate in are as follows: 1. pure electric driving working condition: the first clutch 111 is closed, the second clutch 112 is opened, the fuel engine 200 does not participate in driving, and the motor 21 outputs power to drive the speed changing device 1 so as to drive the whole vehicle; 2. driving condition of fuel engine 200: the first clutch 111 is closed, the second clutch 112 is closed, the fuel engine 200 outputs power, the motor 21 absorbs the power to generate electricity, and the working condition point of the fuel engine 200 is adjusted; 3. coupling working conditions are as follows: the first clutch 111 is closed, the second clutch 112 is closed, the fuel engine 200 and the motor 21 output power simultaneously, and the power is jointly driven to drive the speed changing device 1 and drive the whole vehicle to run; 4. recovering braking energy: the first clutch 111 is closed, the second clutch 112 is opened, the kinetic energy of the whole vehicle is transmitted from the wheels to the motor 21 through the transmission device 1, and the motor 21 absorbs the power to generate electricity which is stored in a battery for later use.

As an embodiment, the clutch mechanism 11 further includes a third clutch 113, the transmission mechanism 12 further includes a fourth transmission assembly 124, a transmission shaft of the fourth transmission assembly 124 is sleeved on the periphery of the transmission shaft of the first transmission assembly 121, the fourth transmission assembly 124 rotates to drive the second transmission assembly 122 and/or the third transmission assembly 123 to rotate, and the transmission shaft of the fourth transmission assembly 124 is connected with the output shaft of the motor 21 through the third clutch 113. The clutch mechanism 11 further includes a third clutch 113, the transmission mechanism 12 further includes a fourth transmission assembly 124, a transmission shaft of the fourth transmission assembly 124 is hollow and is sleeved on the periphery of the transmission shaft of the first transmission assembly 121, the transmission shaft of the fourth transmission assembly 124 is a hollow shaft and is nested on the transmission shaft of the first transmission assembly 121, the transmission shaft of the fourth transmission assembly 124 is connected with the output shaft of the motor 21 through the third clutch 113, the input end of the third clutch 113 is connected with the output shaft of the motor 21, the output end of the third clutch 113 is connected with the transmission shaft of the fourth transmission assembly 124, when the vehicle needs to be driven, the third clutch 113 is closed, the transmission shaft of the fourth transmission assembly 124 rotates through the driving of the motor 21 and/or the fuel engine 200, the rotation shaft of the fourth transmission assembly 124 rotates to drive the transmission shaft of the second transmission assembly 122 and/or the transmission assembly 123 to rotate, the rotation of the drive shaft of the second transmission assembly 122 and/or the third transmission assembly 123 drives the rotation of the drive shaft of the differential 100, thereby driving the entire vehicle. The third clutch 113 and the first clutch 111 are dual clutches, and can control the on-off of the power flow of the hybrid power system, the friction of starting and creeping of the whole vehicle, the alternation during gear shifting and the like. In this embodiment, a dual-input and dual-output shaft scheme is adopted, that is, the first transmission assembly 121 and the fourth transmission assembly 124 are dual-input, the second transmission assembly 122 and the third transmission assembly 123 are dual-output, and when a transmission shaft of the first transmission assembly 121 and a transmission shaft of the fourth transmission assembly 124 are nested inside and outside, the hybrid power system does not increase the occupied space while increasing the gears. The fourth transmission assembly 124 is added, so that the gear is more, the speed ratio coverage is wider, the speed ratio setting flexibility is higher, a large speed ratio can be selected for working conditions such as low-speed climbing and the like, a small speed ratio can be selected for working conditions of high-speed cruising, the problem that the rotating speeds of the motor 21 and the gearbox are too high during the high-speed cruising is solved, when the speed ratio is 9.0, the rotating speed of the motor 21 can reach about 9000rpm during the 120kph cruising, and a high-speed bearing needs to be selected; and when the speed ratio is 3.0, when the motor 21 and the gearbox cruise at 120kph, the rotating speed is only 3000rpm, and the requirement can be met by selecting a common bearing, so that the design model selection difficulty and the system matching difficulty of parts are effectively reduced.

Further, as shown in fig. 2, the first transmission assembly 121 includes a first transmission shaft 1211 and a first driving wheel 1212 connected to the first transmission shaft 1211, the first transmission shaft 1211 is connected to the first clutch 111, the second transmission assembly 122 includes a second transmission shaft 1221, a first synchronizer 1222 connected to the second transmission shaft 1221, and a first driven wheel 1223 sleeved on the second transmission shaft 1221 in an empty manner, the second transmission shaft 1221 is arranged in parallel with the first transmission shaft 1211, the first driving wheel 1212 is engaged with the first driven wheel 1223, the first synchronizer 1222 is connected to a first fork of the automobile, the first synchronizer 1222 is driven to move along an axial direction of the second transmission shaft 1221 by moving the first fork, the first synchronizer 1222 can be connected to or disconnected from the first driven wheel 1223, and the second transmission shaft 1221 rotates to drive the input shaft of the differential 100 to rotate. The first transmission assembly 121 includes a first transmission shaft 1211 and a first driving wheel 1212 connected to the first transmission shaft 1211, the first driving wheel 1212 is fixed to the first transmission shaft 1211, the first transmission shaft 1211 is connected to an output end of the first clutch 111, the second transmission assembly 122 includes a second transmission shaft 1221, a first synchronizer 1222 connected to the second transmission shaft 1221, and a first driven wheel 1223 hollow on the second transmission shaft 1221, the second transmission shaft 1221 is parallel to the first transmission shaft 1211, the first driving wheel 1212 is engaged with the first driven wheel 1223, the first synchronizer 1222 is connected to a first fork of the vehicle, when the vehicle is driven by the first driving wheel 1212, the first synchronizer 1222 is driven to move along an axial direction of the second transmission shaft 1221 by shifting the first fork, the first synchronizer 1222 is connected to the first driven wheel 1223, the first transmission shaft 1211 rotates and drives the first driving wheel 1212 to rotate, the first driving wheel 1212 rotates and drives the first driven wheel 1223 to rotate, the first driven wheel 1223 rotates and drives the second transmission shaft 1221 to rotate through the first synchronizer 1222, the second transmission shaft 1221 rotates and drives the input shaft of the differential 100 to rotate, when the first driving wheel 1212 is not needed to drive the whole vehicle, the first synchronizer 1222 is driven to move along the axial direction of the second transmission shaft 1221 by shifting the first shifting fork, and the first synchronizer 1222 is disconnected from the first driven wheel 1223.

In addition, in an embodiment, the first transmission assembly 121 further includes a second driving wheel 1213 connected to the first transmission shaft 1211, the third transmission assembly 123 includes a third transmission shaft 1231, a second synchronizer 1232 connected to the third transmission shaft 1231, and a second driven wheel 1233 empty on the third transmission shaft 1231, the third transmission shaft 1231 is disposed in parallel with the first transmission shaft 1211, the second driving wheel 1213 is engaged with the second driven wheel 1233, the second synchronizer 1232 is configured to be connected to a second fork of the vehicle, the second synchronizer 1232 is driven to move along an axial direction of the third transmission shaft 1231 by shifting the second fork, the second synchronizer 1232 can be connected to or disconnected from the second driven wheel 1233, and the third transmission shaft 1231 rotates to drive the input shaft of the differential 100 to rotate. The first transmission assembly 121 further includes a second driving wheel 1213 connected to the first transmission shaft 1211, the second driving wheel 1213 is fixed to the first transmission shaft 1211, the third transmission assembly 123 includes a third transmission shaft 1231, a second synchronizer 1232 connected to the third transmission shaft 1231, and a second driven wheel 1233 freely sleeved on the third transmission shaft 1231, the third transmission shaft 1231 is parallel to the first transmission shaft 1211, the second driving wheel 1213 is engaged with the second driven wheel 1233, when the whole vehicle needs to be driven by the second driving wheel 1213, the second synchronizer 1232 is driven to move axially along the third transmission shaft 1231 by shifting the second fork, the second synchronizer 1232 is connected to the second driven wheel 1233, the first transmission shaft 1211 rotates and drives the second driving wheel 1213 to rotate, the second driving wheel 1213 rotates and drives the second driven wheel 1233 to rotate, the second driven wheel 1233 rotates and drives the third transmission shaft 1231 to rotate by the second synchronizer 1232, the third transmission shaft 1231 rotates to drive the input shaft of the differential 100 to rotate, and when the second driving wheel 1213 is not needed to drive the whole vehicle, the second driving fork is shifted to drive the second synchronizer 1232 to move along the axial direction of the third transmission shaft 1231, so that the second synchronizer 1232 is disconnected from the second driven wheel 1233.

The fourth transmission assembly 124 includes a fourth transmission shaft 1241 and a third driving wheel 1242 connected to the fourth transmission shaft 1241, the fourth transmission shaft 1241 is connected to the third clutch 113, the second transmission assembly 122 further includes a third synchronizer 1224 connected to the second transmission shaft 1221, and a third driven wheel 1225 loosely fitted on the second transmission shaft 1221, the third driving wheel 1242 is engaged with the third driven wheel 1225, the third synchronizer 1224 is configured to be connected to a third fork of the vehicle, the third synchronizer 1224 is driven to move in the axial direction of the second transmission shaft 1221 by shifting the third fork, and the third synchronizer 1224 can be connected to or disconnected from the third driven wheel 1225. The fourth transmission assembly 124 includes a fourth transmission shaft 1241 and a third driving wheel 1242 connected to the fourth transmission shaft 1241, the third driving wheel 1242 is fixed on the fourth transmission shaft 1241, the fourth transmission shaft 1241 is connected to the output end of the third clutch 113, the second transmission assembly 122 further includes a third synchronizer 1224 connected to the second transmission shaft 1221 and a third driven wheel 1225 freely fitted on the second transmission shaft 1221, the third driving wheel 1242 is engaged with the third driven wheel 1225, the third synchronizer 1224 is connected to a third fork of the vehicle, it should be noted that, based on the relatively long distance between the first driven wheel 1223 and the third driven wheel 1225, the first synchronizer 1222 and the third synchronizer 1224 are both single-sided synchronizers, so that the first synchronizer 1222 only needs to be disposed near the first driven wheel 1224 3, the third synchronizer 1222 only needs to be disposed near the third driven wheel 1225, that a small movement can be achieved, the synchronizer can be connected with the driven wheel, when the whole vehicle needs to be driven by the third driving wheel 1242, the third synchronizer 1224 is driven to move axially along the second transmission shaft 1221 by shifting the third shifting fork, the third synchronizer 1224 is connected with the third driven wheel 1225, the fourth transmission shaft 1241 rotates and drives the third driving wheel 1242 to rotate, the third driving wheel 1242 rotates and drives the third driven wheel 1225 to rotate, the third driven wheel 1225 rotates and drives the second transmission shaft 1221 to rotate through the third synchronizer 1224, the second transmission shaft 1221 rotates and drives the input shaft of the differential 100 to rotate, when the whole vehicle does not need to be driven by the third driving wheel 1242, the third synchronizer 1224 is driven to move axially along the second transmission shaft 1221 by shifting the third shifting fork, and the third synchronizer 1224 is disconnected from the third driven wheel 1225.

Further, in order to realize multiple functions, the third transmission assembly 123 further includes a fourth driven wheel 1234 that is sleeved on the third transmission shaft 1231 in an empty manner, the second synchronizer 1232 is disposed between the second driven wheel 1233 and the fourth driven wheel, the third driving wheel 1242 is engaged with the fourth driven wheel 1234, and the second synchronizer 1232 can be connected to or disconnected from the fourth driven wheel 1234 by shifting the second fork to drive the second synchronizer 1232 to move along the axial direction of the third transmission shaft 1231. The third transmission assembly 123 further includes a fourth driven wheel 1234 loosely fitted on the third transmission shaft 1231, the second synchronizer 1232 is disposed between the second driven wheel 1233 and the fourth driven wheel, the third driving wheel 1242 is engaged with the fourth driven wheel 1234, when the whole vehicle needs to be driven by engaging the third driving wheel 1242 with the fourth driven wheel 1234, the second shifting fork is shifted to drive the second synchronizer 1232 to move axially along the third transmission shaft 1231, the second synchronizer 1232 is connected with the fourth driven wheel 1234, the fourth transmission shaft 1241 rotates and drives the third driving wheel 1242 to rotate, the third driving wheel 1242 rotates and drives the fourth driven wheel 1234 to rotate, the fourth driven wheel 1234 rotates and drives the third transmission shaft 1231 to rotate by the second synchronizer 1232, the third transmission shaft 1231 rotates and drives the input shaft of the differential 100 to rotate, when the whole vehicle does not need to engage the third driving wheel 1242 with the fourth driven wheel 1234, the second synchronizer 1232 is driven to move axially along the third transmission shaft 1231 by shifting the second shifting fork, the third synchronizer 1224 is decoupled from the fourth driven wheel 1234.

In addition, in the above-described embodiment, the hybrid system further includes a power battery (not shown) electrically connected to the motor 21, and the power battery is used to feed power to the motor 21. The hybrid system further includes a power battery electrically connected to the motor 21 for supplying power to the motor 21, and the power battery supplies power to the motor 21 when the motor 21 is operated to maintain the motor 21 in continuous operation.

In one embodiment, the hybrid system further includes an electrical storage device (not shown) electrically connected to the electric machine 21. The hybrid system also includes an electrical storage device electrically connected to the electric machine 21, and the electric machine 21 absorbs energy to charge the electrical storage device. The first clutch 111 is closed, the second clutch 112 is opened, the kinetic energy of the whole vehicle is transmitted from the wheels to the motor 21 through the speed changing device 1, and the motor 21 absorbs the power to generate electricity which is stored in the electricity storage device for later use; alternatively, the first clutch 111 is closed, the second clutch 112 is closed, the fuel engine 200 outputs power, and the motor 21 absorbs the power to generate power, which is stored in the electric storage device.

Further, the second clutch 112 is an electrically controlled clutch. In order to enable automatic control, the second clutch 112 is an electronically controlled clutch that is closed when driving with the fuel engine 200 is required and is open when driving with the fuel engine 200 is not required. In one embodiment, the electronically controlled clutch is a normally closed clutch.

In addition, the automobile comprises the hybrid power system. An automobile comprises the hybrid power system, and the automobile comprises all technical features and corresponding beneficial effects of the hybrid power system, which are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.