Power system of hybrid power vehicle and hybrid power vehicle

Abstract

The invention discloses a power system of a hybrid power vehicle and the hybrid power vehicle. The power system comprises an engine, a first motor, a second motor, a power transmission mechanism and a power battery pack, the power transmission mechanism comprises a clutch, a gear shifter output shaft, a gear shifter gear, a first gear shifting mechanism, a second gear shifting mechanism and a third gear shifting mechanism. Driving force is provided for a vehicle through the engine, the first motor and the second motor, and power provided by the engine, the first motor and the second motor is transmitted to the driving wheels through the power transmission mechanism; the working modes of the power system are changed and the gear ratio of the power transmission mechanism is switched through the clutch, the first gear shifting mechanism, the second gear shifting mechanism and the third gear shifting mechanism of the power transmission mechanism, so that each working mode has multiple operation modes, the operation modes of the hybrid power system are expanded, the hybrid power system can better adapt to complex driving conditions, and the service life of the hybrid power system is prolonged. And meanwhile, the fuel economy is improved, and carbon emission is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of hybrid vehicle, and more specifically, relates to a power system of a hybrid vehicle and a hybrid vehicle. Background Art

[0002] At present, pure electric vehicles have a short driving range, a long charging time, and it is difficult to reduce the battery cost in a short time. Hybrid systems have emerged as the times require. As a key technology in the transformation from traditional fuel vehicles to new pure electric vehicles, hybrid systems can make up for the shortcomings of internal combustion engine systems and pure electric systems. Therefore, hybrid vehicles have emerged and are widely praised. Major car companies are actively developing hybrid vehicles to improve the power and fuel economy of the entire vehicle and reduce carbon emissions.

[0003] Existing hybrid power systems are generally developed based on traditional automatic transmissions. A hybrid power system is formed by adding a motor to the front or rear end of the existing automatic transmission. The existing hybrid power system only contains one motor. The operation mode of the entire hybrid power system is relatively simple and cannot adapt to complex driving conditions, which is not conducive to improving fuel economy.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a power system of a hybrid vehicle and a hybrid vehicle, so as to increase the operating mode of the hybrid system to adapt to complex driving conditions, improve fuel economy and reduce carbon emissions.

[0006] To achieve the above objective, the present invention provides a power system of a hybrid vehicle and a hybrid vehicle.

[0007] According to a first aspect of the present invention, a power system of a hybrid vehicle is provided, comprising:

[0008] an engine connected to the first output shaft via a clutch of the power transmission mechanism, the engine being used to provide power to the first output shaft;

[0009] a first motor, electrically connected to a first output terminal of the power battery pack, wherein an output terminal of the first motor is connected to the first output shaft, and the first motor is used to provide power to the first output shaft;

[0010] a second motor, electrically connected to a second output terminal of the power battery pack, an output terminal of the second motor being connected to a second output shaft, the second output shaft being rigidly connected to a second motor output gear, the second motor being used to provide power to the second output shaft and then to the second motor output gear;

[0011] a power transmission mechanism, which is rigidly connected to the first output shaft, is constantly meshed with the second motor output gear, and is constantly meshed with the drive gear of the drive wheel of the hybrid vehicle, and the power transmission mechanism is used to transmit the power obtained by the first output shaft and / or the second motor output gear to the drive gear, and then to the drive wheel to drive the hybrid vehicle to move;

[0012] a power battery pack, used to provide electrical energy to the first motor and / or the second motor to drive the first motor and / or the second motor to rotate;

[0013] The power transmission mechanism comprises:

[0014] a clutch, which is hard-connected to the engine, and the output shaft of the engine is engaged / disengaged with the first output shaft through the clutch;

[0015] a shifter output shaft, hard-connected to the shifter gear;

[0016] a shifter gear, which is constantly meshed with the driving gear;

[0017] a first shift mechanism, constantly meshing with the first output shaft;

[0018] a second shift mechanism, constantly meshing with the first output shaft;

[0019] a third shift mechanism, constantly meshing with the shifter output shaft;

[0020] The gear ratio of the power transmission mechanism is switched by the first shift mechanism, the second shift mechanism, and the third shift mechanism.

[0021] Optionally, the power transmission mechanism further includes:

[0022] A first gear gear set is rigidly connected to the first output shaft and is disposed between the second gear gear set and the third gear gear set;

[0023] A second gear set is constantly meshed with the output gear of the second motor;

[0024] a third gear gear set, rigidly connected to the first output shaft and disposed between the clutch and the first gear gear set;

[0025] The first shift mechanism is disposed between the first gear position gear set and the third gear position gear set, and the first gear position gear set and the third gear position gear set are engaged / disengaged with the first output shaft by toggling the first shift mechanism;

[0026] The second shift mechanism is disposed between the first gear position gear set and the second gear position gear set, and the second gear position gear set is engaged with / disengaged from the first output shaft by shifting the second shift mechanism;

[0027] The second gear position gear set is arranged between the second gear shift mechanism and the third gear shift mechanism, and the second gear position gear set is engaged with / disengaged from the output shaft of the gear shifter by shifting the third gear shift mechanism.

[0028] Optionally, the first gear gear set includes:

[0029] A first gear position gear, sleeved on the first output shaft, the first gear position gear is engaged / disengaged with the first output shaft by toggling the first shift mechanism;

[0030] The second gear position gear is constantly meshed with the first gear position gear, and the second gear position gear is rigidly connected to the shifter output shaft.

[0031] Optionally, the second gear gear set includes:

[0032] A third gear position gear is constantly meshed with the second motor output gear, the third gear position gear is sleeved on the first output shaft, and the third gear position gear is meshed / disengaged with the first output shaft by toggling the second shift mechanism;

[0033] The fourth gear gear is always meshed with the third gear gear, the fourth gear gear is sleeved on the shifter output shaft, and the fourth gear gear is meshed / disengaged with the shifter output shaft by shifting the third shift mechanism.

[0034] Optionally, the third gear gear set includes:

[0035] A fifth gear gear, sleeved on the first output shaft, the fifth gear gear being engaged / disengaged with the first output shaft by shifting the first shift mechanism;

[0036] The sixth gear is constantly meshed with the first gear, and the sixth gear is rigidly connected to the output shaft of the shifter.

[0037] Optionally, the working modes of the power system include:

[0038] Pure electric mode, hybrid mode and fuel mode.

[0039] Optionally, the pure electric mode includes:

[0040] Pure electric mode 1: the second gear position gear set is disconnected from the first output shaft by shifting the second gear shift mechanism, the second gear position gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, the power output by the second motor is transmitted to the shifter output shaft through the second gear position gear set, and then transmitted to the drive wheel to drive the hybrid vehicle to move;

[0041] Pure electric mode 2: disconnect the first output shaft from the engine through the clutch, mesh the second gear gear set with the first output shaft by shifting the second shift mechanism, mesh the first gear gear set with the first output shaft by shifting the first shift mechanism, disconnect the second gear gear set from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, transmit the power output by the second motor to the first output shaft through the second gear gear set, transmit the power obtained by the first output shaft to the shifter output shaft through the first gear gear set, and then transmit it to the drive wheel to drive the hybrid vehicle to move;

[0042] Pure electric mode three: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the third gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, the power output of the second motor is transmitted to the first output shaft through the second gear gear set, the power obtained by the first output shaft is transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheel to drive the hybrid vehicle to move;

[0043] Pure electric mode 4: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0044] Pure electric mode five: disconnect the first output shaft from the engine through the clutch, mesh the second gear gear set with the first output shaft by shifting the second shift mechanism, disconnect the second gear gear set from the shifter output shaft by shifting the third shift mechanism, mesh the first gear gear set with the first output shaft by shifting the first shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and transmit the power provided by the first motor and the second motor to the shifter output shaft through the first gear gear set, and then to the drive wheels to drive the hybrid vehicle to move;

[0045] Pure electric mode six: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the third gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0046] Optionally, the hybrid mode includes:

[0047] Hybrid mode 1: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear position gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear position gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear position gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear position gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0048] Hybrid mode 2: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0049] Hybrid mode three: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the second gear gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0050] Hybrid mode 4: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0051] Hybrid mode 5: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0052] Hybrid mode six: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, and the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0053] Optionally, the fuel mode includes:

[0054] Fuel mode 1: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear position gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear position gear set is disconnected from the first output by shifting the second shift mechanism, the second gear position gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the first gear position gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move;

[0055] Fuel mode 2: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is disconnected from the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move;

[0056] Fuel mode three: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the second gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0057] Optionally, the gear ratios of the first gear gear set, the second gear gear set and the third gear gear set are all different.

[0058] According to a second aspect of the present invention, a hybrid vehicle is provided, wherein the hybrid vehicle comprises a power system of the hybrid vehicle as described in any one of the first aspects.

[0059] The beneficial effects of the present invention are as follows: the present invention provides driving force to the vehicle through the engine, the first motor and the second motor, provides electrical energy to the first motor and / or the second motor through the power battery pack to drive the first motor and / or the second motor to rotate, and transmits the power provided by the engine, the first motor and the second motor to the drive wheels through the power transmission mechanism to drive the hybrid vehicle to move; changes the working mode (pure electric mode, hybrid mode and fuel mode) of the power system through the clutch, the first shift mechanism, the second shift mechanism and the third shift mechanism of the power transmission mechanism, and switches the gear ratio of the power transmission mechanism through the first shift mechanism, the second shift mechanism and the third shift mechanism, so that each working mode has multiple operating modes, expands the operating mode of the hybrid power system, can better adapt to complex driving conditions, and at the same time improves fuel economy and reduces carbon emissions.

[0060] The system of the present invention has other characteristics and advantages, which will be apparent from the drawings incorporated herein and the following detailed description, or will be described in detail in the drawings incorporated herein and the following detailed description, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which like reference numerals generally represent like components.

[0062] Figure 1 A schematic diagram of a power system of a hybrid vehicle according to Embodiment 1 of the present invention is shown. DETAILED DESCRIPTION

[0063] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0064] A power system of a hybrid vehicle according to the present invention comprises:

[0065] an engine connected to the first output shaft via a clutch of the power transmission mechanism, and the engine is used to provide power to the first output shaft;

[0066] A first motor is electrically connected to a first output terminal of the power battery pack, an output terminal of the first motor is connected to a first output shaft, and the first motor is used to provide power to the first output shaft;

[0067] A second motor is electrically connected to the second output terminal of the power battery pack, the output terminal of the second motor is connected to the second output shaft, the second output shaft is hard-connected to the second motor output gear, and the second motor is used to provide power to the second output shaft and then to the second motor output gear;

[0068] a power transmission mechanism, which is rigidly connected to the first output shaft, is constantly meshed with the second motor output gear, and is constantly meshed with the drive gear of the drive wheel of the hybrid vehicle, and the power transmission mechanism is used to transmit the power obtained by the first output shaft and / or the second motor output gear to the drive gear, and then to the drive wheel to drive the hybrid vehicle to move;

[0069] A power battery pack, used to provide electrical energy to the first motor and / or the second motor to drive the first motor and / or the second motor to rotate;

[0070] The power transmission mechanism includes:

[0071] A clutch is hard-connected to the engine, and the output shaft of the engine is engaged / disengaged with the first output shaft through the clutch;

[0072] a shifter output shaft, hard-connected to the shifter gear;

[0073] The shifter gear is constantly meshed with the drive gear;

[0074] A first shift mechanism, constantly meshing with the first output shaft;

[0075] a second shift mechanism, constantly meshing with the first output shaft;

[0076] a third shift mechanism, which is constantly meshed with the shifter output shaft;

[0077] The gear ratio of the power transmission mechanism is switched by the first shift mechanism, the second shift mechanism, and the third shift mechanism.

[0078] Specifically, the power system of the hybrid vehicle of the present invention provides driving force to the vehicle through the engine, the first motor and the second motor, provides electrical energy to the first motor and / or the second motor through the power battery pack to drive the first motor and / or the second motor to rotate, and transmits the power provided by the engine, the first motor and the second motor to the drive wheels through the power transmission mechanism to drive the hybrid vehicle to move; changes the working mode (pure electric mode, hybrid mode and fuel mode) of the power system through the clutch, the first shift mechanism, the second shift mechanism and the third shift mechanism of the power transmission mechanism, and switches the gear ratio of the power transmission mechanism through the first shift mechanism, the second shift mechanism and the third shift mechanism, so that each working mode has multiple operating modes, expands the operating mode of the hybrid system, can better adapt to complex driving conditions, while improving fuel economy and reducing carbon emissions.

[0079] In one example, the power transmission mechanism further includes:

[0080] A first gear gear set is rigidly connected to the first output shaft and is disposed between the second gear gear set and the third gear gear set;

[0081] The second gear gear set is constantly meshed with the output gear of the second motor;

[0082] A third gear gear set is rigidly connected to the first output shaft and is disposed between the clutch and the first gear gear set;

[0083] The first shift mechanism is arranged between the first gear gear set and the third gear gear set, and the first gear gear set and the third gear gear set are engaged / disengaged with the first output shaft by toggling the first shift mechanism;

[0084] The second shift mechanism is arranged between the first gear gear set and the second gear gear set, and the second gear gear set is engaged / disengaged with the first output shaft by toggling the second shift mechanism;

[0085] The second gear position gear set is arranged between the second gear shift mechanism and the third gear shift mechanism, and the second gear position gear set is engaged / disengaged with the output shaft of the gear shifter by shifting the third gear shift mechanism.

[0086] In one example, the first gear gear set includes:

[0087] A first gear position gear is sleeved on the first output shaft, and the first gear position gear is engaged / disengaged with the first output shaft by toggling the first shift mechanism;

[0088] The second gear position gear is constantly meshed with the first gear position gear, and the second gear position gear is rigidly connected to the output shaft of the shifter.

[0089] In one example, the second gear set includes:

[0090] The third gear gear is constantly meshed with the second motor output gear, the third gear gear is sleeved on the first output shaft, and the third gear gear is meshed / disengaged with the first output shaft by toggling the second shift mechanism;

[0091] The fourth gear gear is always meshed with the third gear gear. The fourth gear gear is sleeved on the output shaft of the shifter. The fourth gear gear is meshed / disengaged with the output shaft of the shifter by toggling the third shift mechanism.

[0092] In one example, the third gear gear set includes:

[0093] The fifth gear gear is sleeved on the first output shaft, and the fifth gear gear is engaged / disengaged with the first output shaft by toggling the first shift mechanism;

[0094] The sixth gear gear is constantly meshed with the first gear gear, and the sixth gear gear is rigidly connected to the output shaft of the shifter.

[0095] In one example, the operating modes of the power system include:

[0096] Pure electric mode, hybrid mode and fuel mode.

[0097] In one example, electric-only mode includes:

[0098] Pure electric mode 1: The second gear shift mechanism is turned to disconnect the second gear set from the first output shaft, and the third gear shift mechanism is turned to engage the second gear set with the shifter output shaft. The power battery pack provides electric energy to the second motor to drive the second motor to rotate, and the power output of the second motor is transmitted to the shifter output shaft through the second gear set, and then transmitted to the drive wheel to drive the hybrid vehicle to move;

[0099] Pure electric mode 2: The first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the first gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, the power output of the second motor is transmitted to the first output shaft through the second gear gear set, the power obtained by the first output shaft is transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0100] Pure electric mode three: disconnect the first output shaft from the engine through the clutch, mesh the second gear gear set with the first output shaft by shifting the second gear shift mechanism, mesh the third gear gear set with the first output shaft by shifting the first gear shift mechanism, disconnect the second gear gear set from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, transmit the power output of the second motor to the first output shaft through the second gear gear set, transmit the power obtained by the first output shaft to the shifter output shaft through the third gear gear set, and then transmit it to the drive wheels to drive the hybrid vehicle to move;

[0101] Pure electric mode 4: The first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0102] Pure electric mode 5: The first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the first gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0103] Pure electric mode six: The first output shaft is disconnected from the engine through the clutch, the second gear gear set is engaged with the first output shaft by turning the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by turning the third gear shift mechanism, the third gear gear set is engaged with the first output shaft by turning the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0104] In one example, the hybrid mode includes:

[0105] Hybrid mode 1: The first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0106] Hybrid mode 2: The first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0107] Hybrid mode three: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the second gear gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0108] Hybrid mode 4: The first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0109] Hybrid mode 5: The first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move;

[0110] Hybrid mode six: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0111] In one example, the fuel mode includes:

[0112] Fuel mode 1: The first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is disconnected from the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move;

[0113] Fuel mode 2: The first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is disconnected from the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, and the power provided by the engine is transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move;

[0114] Fuel mode three: The first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the second gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

[0115] In one example, the gear ratios of the first gear gear set, the second gear gear set, and the third gear gear set are all different.

[0116] Specifically, the gear ratio of the first gear gear set, the second gear gear set and the third gear gear set is the vehicle transmission gear ratio, which refers to the transmission ratio of each gear, that is, the ratio of the number of teeth of two adjacent gears. The gear ratio of the vehicle transmission is an important parameter in the automobile transmission system, which directly affects the acceleration performance, fuel economy and driving speed of the vehicle. The present invention switches the gear sets used in each working mode through the first shift mechanism, the second shift mechanism and the third shift mechanism of the power transmission mechanism, changes the gear ratio of the vehicle transmission, adds an operating mode to each working mode, expands the operating mode of the hybrid power system, can better adapt to complex driving conditions, and at the same time improves fuel economy and reduces carbon emissions.

[0117] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to be limiting of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention may be combined with each other without conflict.

[0118] Example 1

[0119] like Figure 1 As shown, this embodiment provides a power system of a hybrid vehicle, comprising:

[0120] Engine 1, motor 2, motor 3 and power transmission mechanism, the working modes of the power system include pure electric EV mode, hybrid HEV mode and traditional fuel ICE mode, wherein, in pure electric EV mode, power is transmitted to the power transmission mechanism through motor 2 and / or motor 3; the power transmission mechanism is used to drive the driving wheel 18 of the car; in hybrid HEV mode, engine 1, motor 2 and / or motor 3 transmit power to the power transmission mechanism; in traditional fuel ICE mode, engine 1 transmits power to the power transmission mechanism. The power system also includes a battery pack 4, which is used to provide motive power for motor 2 and / or motor 3; the power transmission mechanism in the power system includes a clutch 5, a shift mechanism 10, a shift mechanism 11, a shift mechanism 12, a gear set 7, a gear set 8, and a gear set 9. Among them, the output shaft 14 of the engine 1 is hard-connected with the clutch 5, the output shaft 6 of the motor 2 is constantly meshed with the shift mechanism 10 and the shift mechanism 11, the shifter output shaft 13 is constantly meshed with the shift mechanism 12, the shifter output shaft 13 is constantly meshed with the gear set 7 and the gear set 9, the output shaft 15 of the motor 3 is hard-connected with the output gear 16, the output gear 16 is constantly meshed with the gear set 8, the gear set 7 and the gear set 9 are connected to the motor 2 by toggling the shift mechanism 10 When the output shaft 6 is engaged and disengaged, the gear set 7 is engaged with the output shaft 6 of the motor 2, and the gear set 9 is disengaged from the output shaft 6 of the motor 2, and vice versa; the gear set 8 is engaged and disengaged with the output shaft 6 of the motor 2 by toggling the shift mechanism 11, and the gear set 8 is engaged and disengaged with the shifter output shaft 13 by toggling the shift mechanism 12, the shifter output shaft 13 is hard-connected with the shifter gear 17, and the shifter gear 17 is always engaged with the driving gear of the driving wheel 18. The gear ratios of the gear set 7, the gear set 8 and the gear set 9 are all different.

[0121] There are six operating modes in the pure electric EV mode. The first operating mode: the battery pack 4 discharges to the motor 3, the motor 3 is always meshed with the gear set 8, the gear set 8 is disconnected from the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 8 is meshed with the shifter output shaft 13 through the shift mechanism 12, the gear set 7 and the gear set 9 are disconnected from the output shaft 6 of the motor 2 through the shift mechanism 10, and the gear set 8 transmits the mechanical energy to the drive wheel 18 through the shifter output shaft 13. The second operating mode: the engine 1 is disengaged from the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is always meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 7 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the shifter output shaft 13 through the shift mechanism 12, and the gear set 7 transmits the mechanical energy to the drive wheel 18. The third operation mode: the engine 1 is disengaged from the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 9 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 9 transmits the mechanical energy to the drive wheel 18. The fourth operation mode: the engine 1 is disengaged from the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, and the battery pack 4 discharges to the motor 2, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 8 is meshed with the output shaft 13 of the shifter through the shift mechanism 12, the gear sets 7 and 9 are disconnected from the output shaft 6 of the motor 2 through the shift mechanism 10, and the gear set 8 transmits the mechanical energy to the drive wheel 18. The fifth operating mode: the engine 1 is disconnected from the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, and the battery pack 4 discharges to the motor 2 at the same time, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 7 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 7 transmits mechanical energy to the drive wheel 18. The sixth operating mode: the engine 1 is disconnected from the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, and the battery pack 4 discharges to the motor 2 at the same time, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 9 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 9 transmits mechanical energy to the drive wheel 18.

[0122] The hybrid HEV mode has six operating modes. In the first operating mode, the engine 1 is connected to the motor 2 through the clutch 5. The output shaft 6 of the motor 2 is hard-connected with the gear gear set 7 and the gear gear set 9. The battery pack 4 discharges to the motor 2. At the same time, the battery pack 4 discharges to the motor 3. The motor 3 is always meshed with the gear gear set 8. The gear gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11. The gear gear set 7 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10. The gear gear set 8 is disconnected from the shifter output shaft 13 through the shift mechanism 12. The gear gear set 7 transmits the mechanical energy to the drive wheel 18. The second operation mode: the engine 1 is combined with the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 2, and the battery pack 4 discharges to the motor 3 at the same time, the motor 3 is always meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 9 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 9 transmits the mechanical energy to the drive wheel 18. The third operation mode: the engine 1 is combined with the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 2, and the battery pack 4 discharges to the motor 3 at the same time, the motor 3 is always meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 7 and the gear set 9 are disconnected from the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is meshed with the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 8 transmits the mechanical energy to the drive wheel 18. The fourth operating mode: the engine 1 is combined with the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 7 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the shifter output shaft 13 through the shift mechanism 12, and the gear set 7 transmits mechanical energy to the drive wheel 18. The fifth operating mode: the engine 1 is combined with the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is constantly meshed with the gear set 8, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 9 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the shifter output shaft 13 through the shift mechanism 12, and the gear set 9 transmits mechanical energy to the drive wheel 18. The sixth operating mode: the engine 1 is connected to the motor 2 through the clutch 5, the battery pack 4 discharges to the motor 3, the motor 3 is always engaged with the gear gear set 8, the gear gear set 8 is engaged with the output shaft 6 of the motor 2 through the shifting mechanism 11, the gear gear set 7 and the gear gear set 9 are disconnected from the output shaft 6 of the motor 2 through the shifting mechanism 10, the gear gear set 8 is engaged with the shifter output shaft 13 through the shifting mechanism 12, and the gear gear set 8 transmits the mechanical energy to the drive wheel 18.

[0123] The conventional fuel ICE mode has three operating modes. The first operating mode: the engine 1 is coupled to the motor 2 through the clutch 5, the gear set 7 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 7 transmits mechanical energy to the drive wheel 18. The second operating mode: the engine 1 is coupled to the motor 2 through the clutch 5, the gear set 9 is meshed with the output shaft 6 of the motor 2 through the shift mechanism 10, the gear set 8 is disconnected from the output shaft 6 of the motor 2 through the shift mechanism 11, the gear set 8 is disconnected from the output shaft 13 of the shifter through the shift mechanism 12, and the gear set 9 transmits mechanical energy to the drive wheel 18. The third operating mode: the engine 1 is connected to the motor 2 through the clutch 5, the gear set 7 and the gear set 9 are disconnected from the output shaft 6 of the motor 2 through the shifting mechanism 10, the gear set 8 is meshed with the output shaft 6 of the motor 2 through the shifting mechanism 11, the gear set 8 is meshed with the shifter output shaft 13 through the shifting mechanism 12, and the gear set 8 transmits mechanical energy to the drive wheel 18.

[0124] Example 2

[0125] This embodiment provides a hybrid vehicle, which includes the power system of the hybrid vehicle described in Example 1.

[0126] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A power system of a hybrid vehicle, characterized in that: include: an engine connected to the first output shaft via a clutch of the power transmission mechanism, the engine being used to provide power to the first output shaft; a first motor, electrically connected to a first output terminal of the power battery pack, wherein an output terminal of the first motor is connected to the first output shaft, and the first motor is used to provide power to the first output shaft; a second motor, electrically connected to a second output terminal of the power battery pack, an output terminal of the second motor being connected to a second output shaft, the second output shaft being rigidly connected to a second motor output gear, the second motor being used to provide power to the second output shaft and then to the second motor output gear; a power transmission mechanism, which is rigidly connected to the first output shaft, is constantly meshed with the second motor output gear, and is constantly meshed with the drive gear of the drive wheel of the hybrid vehicle, and the power transmission mechanism is used to transmit the power obtained by the first output shaft and / or the second motor output gear to the drive gear, and then to the drive wheel to drive the hybrid vehicle to move; a power battery pack, used to provide electrical energy to the first motor and / or the second motor to drive the first motor and / or the second motor to rotate; The power transmission mechanism comprises: a clutch, which is hard-connected to the engine, and the output shaft of the engine is engaged / disengaged with the first output shaft through the clutch; a shifter output shaft, which is hard-connected to the shifter gear; a shifter gear, which is constantly meshed with the driving gear; a first shift mechanism, constantly meshing with the first output shaft; a second shift mechanism, constantly meshing with the first output shaft; a third shift mechanism, constantly meshing with the shifter output shaft; The gear ratio of the power transmission mechanism is switched by the first shift mechanism, the second shift mechanism, and the third shift mechanism.

2. The power system of a hybrid vehicle according to claim 1, characterized in that: The power transmission mechanism further comprises: A first gear gear set is rigidly connected to the first output shaft and is disposed between the second gear gear set and the third gear gear set; A second gear set is constantly meshed with the output gear of the second motor; a third gear gear set, rigidly connected to the first output shaft and disposed between the clutch and the first gear gear set; The first shift mechanism is disposed between the first gear position gear set and the third gear position gear set, and the first gear position gear set and the third gear position gear set are engaged / disengaged with the first output shaft by toggling the first shift mechanism; The second shift mechanism is disposed between the first gear position gear set and the second gear position gear set, and the second gear position gear set is engaged with / disengaged from the first output shaft by shifting the second shift mechanism; The second gear position gear set is arranged between the second gear shift mechanism and the third gear shift mechanism, and the second gear position gear set is engaged with / disengaged from the output shaft of the gear shifter by shifting the third gear shift mechanism.

3. The power system of a hybrid vehicle according to claim 2, characterized in that: The first gear gear set comprises: A first gear position gear, sleeved on the first output shaft, the first gear position gear is engaged / disengaged with the first output shaft by toggling the first shift mechanism; The second gear position gear is constantly meshed with the first gear position gear, and the second gear position gear is rigidly connected to the shifter output shaft.

4. The power system of a hybrid vehicle according to claim 3, characterized in that: The second gear gear set includes: A third gear position gear is constantly meshed with the second motor output gear, the third gear position gear is sleeved on the first output shaft, and the third gear position gear is meshed / disengaged with the first output shaft by toggling the second shift mechanism; The fourth gear gear is always meshed with the third gear gear, the fourth gear gear is sleeved on the shifter output shaft, and the fourth gear gear is meshed / disengaged with the shifter output shaft by shifting the third shift mechanism.

5. The power system of a hybrid vehicle according to claim 4, characterized in that: The third gear gear set comprises: A fifth gear gear, sleeved on the first output shaft, the fifth gear gear being engaged / disengaged with the first output shaft by shifting the first shift mechanism; The sixth gear is constantly meshed with the first gear, and the sixth gear is rigidly connected to the output shaft of the shifter.

6. The power system of a hybrid vehicle according to claim 5, characterized in that: The working modes of the power system include: Pure electric mode, hybrid mode and fuel mode.

7. The power system of a hybrid vehicle according to claim 6, characterized in that: The pure electric mode includes: Pure electric mode 1: the second gear position gear set is disconnected from the first output shaft by shifting the second gear shift mechanism, the second gear position gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, the power output by the second motor is transmitted to the shifter output shaft through the second gear position gear set, and then transmitted to the drive wheel to drive the hybrid vehicle to move; Pure electric mode 2: disconnect the first output shaft from the engine through the clutch, mesh the second gear gear set with the first output shaft by shifting the second shift mechanism, mesh the first gear gear set with the first output shaft by shifting the first shift mechanism, disconnect the second gear gear set from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, transmit the power output by the second motor to the first output shaft through the second gear gear set, transmit the power obtained by the first output shaft to the shifter output shaft through the first gear gear set, and then transmit it to the drive wheel to drive the hybrid vehicle to move; Pure electric mode three: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the third gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack provides electric energy to the second motor to drive the second motor to rotate, the power output of the second motor is transmitted to the first output shaft through the second gear gear set, the power obtained by the first output shaft is transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheel to drive the hybrid vehicle to move; Pure electric mode 4: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Pure electric mode five: disconnect the first output shaft from the engine through the clutch, mesh the second gear gear set with the first output shaft by shifting the second shift mechanism, disconnect the second gear gear set from the shifter output shaft by shifting the third shift mechanism, mesh the first gear gear set with the first output shaft by shifting the first shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and transmit the power provided by the first motor and the second motor to the shifter output shaft through the first gear gear set, and then to the drive wheels to drive the hybrid vehicle to move; Pure electric mode six: the first output shaft is disconnected from the engine through the clutch, the second gear gear set is meshed with the first output shaft by shifting the second gear shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the third gear gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor and the second motor is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

8. The power system of a hybrid vehicle according to claim 7, characterized in that: The hybrid mode includes: Hybrid mode 1: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear position gear set is meshed with the first output shaft by shifting the first gear shift mechanism, the second gear position gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear position gear set is disconnected from the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear position gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Hybrid mode 2: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Hybrid mode three: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first gear shift mechanism, the second gear gear set is meshed with the first output by shifting the second gear shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third gear shift mechanism, the power battery pack simultaneously provides electrical energy to the first motor and the second motor to drive the first motor and the second motor to rotate respectively, and the power provided by the first motor, the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Hybrid mode 4: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the first gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Hybrid mode 5: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move; Hybrid mode six: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the third gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power battery pack provides electrical energy to the second motor to drive the second motor to rotate, and the power provided by the second motor and the engine is simultaneously transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

9. The power system of a hybrid vehicle according to claim 8, characterized in that: The fuel modes include: Fuel mode 1: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear position gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear position gear set is disconnected from the first output by shifting the second shift mechanism, the second gear position gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the first gear position gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move; Fuel mode 2: the first output shaft is meshed with the output shaft of the engine through the clutch, the third gear gear set is meshed with the first output shaft by shifting the first shift mechanism, the second gear gear set is disconnected from the first output by shifting the second shift mechanism, the second gear gear set is disconnected from the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the third gear gear set, and then transmitted to the driving wheels to drive the hybrid vehicle to move; Fuel mode three: the first output shaft is meshed with the output shaft of the engine through the clutch, the first gear gear set and the second gear gear set are disconnected from the first output shaft by shifting the first shift mechanism, the second gear gear set is meshed with the first output by shifting the second shift mechanism, the second gear gear set is meshed with the shifter output shaft by shifting the third shift mechanism, the power provided by the engine is transmitted to the shifter output shaft through the second gear gear set, and then transmitted to the drive wheels to drive the hybrid vehicle to move.

10. A hybrid vehicle, characterized in that: The hybrid vehicle comprises a power system of the hybrid vehicle as claimed in any one of claims 1 to 9.

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