CN207809041U - Hybrid electric drive system and vehicle - Google Patents

Abstract

The present disclosure relates to a hybrid drive system and a vehicle. The system includes: an engine; a first motor, the power shaft of the first motor is coaxially connected with the output shaft of the engine; a transmission, the transmission is located between the engine and the first motor, and the transmission includes a double clutch, a first gear gear set, The second gear set, the output shaft of the engine is connected to the input end of the dual clutch, the first output shaft of the dual clutch is connected to the first gear set, and the second output shaft of the dual clutch is connected to the second gear set ; The output part is used to output the power transmitted by the first gear set or the second gear set to drive the vehicle.

Description

Hybrid drive systems and vehicles

technical field

The present disclosure relates to a hybrid drive system and a vehicle.

Background technique

In today's world, human beings are facing two major challenges: energy scarcity and environmental degradation. Traditional automobiles are increasingly plagued by the oil crisis. Energy conservation and environmental protection have gradually become the development theme of the automobile industry. In recent years, hybrid electric vehicles with two different power sources to achieve reduced fuel consumption and emissions have been developed and applied, and put into commercial production and introduced to the market.

A hybrid drive system is generally composed of an engine, a generator, an electric motor, and a power supply. The engine and the power supply jointly provide power for the vehicle, which results in a complex structure, a large space occupation, and a high cost.

Utility model content

The purpose of the present disclosure is to provide a hybrid drive system with a simple structure, which can realize two-speed drive of the engine.

In order to achieve the above object, the present disclosure provides a hybrid drive system, including: an engine; a first motor, the power shaft of the first motor is coaxially connected with the output shaft of the engine; a transmission, the transmission is located in the Between the engine and the first motor, the transmission includes a dual clutch, a first gear gear set, and a second gear gear set, the output shaft of the engine is connected to the input end of the dual clutch, and the dual clutch The first output shaft is connected to the first gear set, the second output shaft of the dual clutch is connected to the second gear set; the output part is used to output the The power transmitted by the first gear set or the second gear set to drive the vehicle.

Optionally, the first output shaft of the dual clutch is slipped on the second output shaft, and the second output shaft of the dual clutch is slipped on the power shaft of the first motor.

Optionally, the input end of the dual clutch is the housing of the dual clutch, one side of the housing is connected to the power shaft of the first motor, and the other side of the housing is connected to the engine connected to the output shaft of the engine so that the output shaft of the engine rotates synchronously with the power shaft of the first electric motor.

Optionally, one side of the housing is keyed to the power shaft of the first motor, and the other side of the housing is keyed to the output shaft of the engine.

Optionally, the input end of the dual clutch is the housing of the dual clutch, the power shaft of the first motor passes through the housing to be connected with the output shaft of the engine, and the housing is empty On the power shaft of the first motor, the output shaft of the engine is connected with the casing.

Optionally, a sealing structure is provided between the power shaft of the first motor and the housing.

Optionally, the transmission includes a transmission output shaft, the transmission output shaft is connected with the first gear set and the second gear set, and the transmission output shaft transmits power to the output part.

Optionally, the first gear set includes a first driving gear and a first driven gear, the second gear set includes a second driving gear and a second driven gear, and the first gear of the dual clutch An output shaft is connected to the first driving gear, a second output shaft of the dual clutch is connected to the second driving gear, the transmission output shaft is connected to the first driven gear, and the transmission output shaft connected with the second driven gear.

Optionally, the system further includes a second motor, and the output part is also used to output power from the second motor to drive the vehicle.

Optionally, the power shaft of the second motor is connected to the first transmission gear, and the first transmission gear meshes with the first driving gear.

Optionally, the power shaft of the second motor is connected to a second transmission gear, and the second transmission gear meshes with the first driven gear.

Optionally, the power shaft of the second motor is connected to a third transmission gear, and the third transmission gear meshes with the second driving gear.

Optionally, the power shaft of the second motor is connected to a fourth transmission gear, and the fourth transmission gear meshes with the second driven gear.

Optionally, the power shaft of the second motor is connected to the fifth transmission gear, the fifth transmission gear meshes with the sixth transmission gear, and the sixth transmission gear is connected to the transmission output shaft.

Optionally, the power shaft of the second motor is sleeved on the power shaft of the first motor.

Optionally, the power shaft of the second motor is coaxially connected with the transmission output shaft.

Optionally, the system further includes a synchronizer, a seventh transmission gear and an eighth transmission gear, the seventh transmission gear meshes with the first driven gear, the eighth transmission gear meshes with the second driven gear The driven gear meshes, and the power shaft of the second motor is selectively connected to the seventh transmission gear or the eighth transmission gear through the synchronizer.

In the present disclosure, through the combination of the dual clutch and the gear sets of the two gears, the switching of the two gears can be realized by controlling the dual clutch, and the structure is simple and the operation is convenient. By connecting the output shaft of the engine coaxially with the power shaft of the first motor, firstly, when the vehicle is parked, the engine can generate power to the first motor, and the form of direct connection between the engine and the first motor for power generation is a mechanical connection The way of electric control is more reliable than the form of electronic control; secondly, intermediate transmission mechanisms such as gears and belts are omitted, on the one hand, it can reduce the load and improve transmission efficiency; on the other hand, it can allow the modular design of the first motor, It is not necessary to adjust the rotor and stator according to the layout of the transmission mechanism. On the other hand, the direct connection between the engine and the first motor can reduce noise; finally, in terms of space layout, the engine, transmission, and first motor are arranged in sequence, making full use of the powertrain. The axial space, and the volume limit of the first motor is small, so that the selection range is large, and the appropriate motor can be selected according to the specific conditions of the vehicle.

The present disclosure also provides a vehicle including the hybrid drive system as described above.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the description, together with the following specific embodiments, are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the attached picture:

FIG. 1 is a schematic schematic diagram of a hybrid drive system according to a first embodiment of the present disclosure;

FIG. 2 is a schematic schematic diagram of a hybrid drive system according to a second embodiment of the present disclosure;

3 is a schematic schematic diagram of a hybrid drive system according to a third embodiment of the present disclosure;

4 is a schematic schematic diagram of a hybrid drive system according to a fourth embodiment of the present disclosure;

5 is a schematic schematic diagram of a hybrid drive system according to a fifth embodiment of the present disclosure;

6 is a schematic schematic diagram of a hybrid drive system according to a sixth embodiment of the present disclosure;

7 is a schematic schematic diagram of a hybrid drive system according to a seventh embodiment of the present disclosure;

8 is a schematic schematic diagram of a hybrid drive system according to an eighth embodiment of the present disclosure;

Fig. 9 is a cross-sectional view of an assembly method of the dual clutch and the power shaft of the first motor;

Fig. 10 is a sectional view of another assembly mode of the dual clutch and the power shaft of the first motor.

Detailed ways

Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

FIG. 1 is a schematic schematic diagram of a hybrid drive system according to a first embodiment of the present disclosure. As shown in FIG. 1 , a hybrid drive system according to a first embodiment of the present disclosure includes an engine 1 , a transmission, an output part, and a first motor 2 . The power of the engine 1 is transmitted to the output part through the transmission, and the output part outputs the power to drive the vehicle.

The speed changer includes a dual clutch 4, a first gear gear set, and a second gear gear set. Wherein, as shown in Fig. 1, Fig. 8 and Fig. 9, the dual clutch 4 has an input end 41, a first output shaft 42 and a second output shaft 43, the output shaft of the engine 1 is connected with the input end 41 of the dual clutch 4, and the dual clutch 4 The first output shaft 42 of the clutch 4 is connected to the first gear set, and the second output shaft 43 of the dual clutch 4 is connected to the second gear set.

The input end 41 of double clutch 4 can be the housing of double clutch 4, and double clutch 4 also comprises two driven disks, and the first output shaft 42 of double clutch 4 can be connected with one of them driven disk by key, double clutch 4 The second output shaft 43 can be connected with another driven plate through a key. Generally, the housing of the dual clutch 4 can be disconnected from the two driven discs, that is, the input end 41 is disconnected from the first output shaft 42 and the second output shaft 43 . When one of the driven disks needs to be engaged, the housing can be controlled to engage with the corresponding driven disk to rotate synchronously, and the driven disk drives the corresponding output shaft to rotate synchronously, that is, the input end 41 is connected to the first output shaft 42 and the second output shaft. One of the two output shafts 43 is transmission-connected, so that the power transmitted from the input end 41 can be output through one of the first output shaft 42 and the second output shaft 43 .

In particular, the housing of the double clutch 4 can also be engaged with two driven discs at the same time, that is, the input end 41 can also be drivingly connected with the first output shaft 42 and the second output shaft 43 at the same time, so that the output from the input end 41 Power can be output through the first output shaft 42 and the second output shaft 43 at the same time.

It should be understood that the specific engagement state of the dual clutch 4 is affected by the control strategy. For those skilled in the art, the control strategy can be adaptively set according to the actual required transmission mode, so that the input terminal 41 and the two output All the shafts are disconnected and the input end 41 is connected to one of the two output shafts to switch between multiple modes.

In the present disclosure, through the combination of the dual clutch 4 and the gear sets of the two gears, the switching of the two gears can be realized by controlling the dual clutch 4 . Specifically, when the transmission is required to input power in the first gear, the housing of the dual clutch 4 can be controlled to engage with the driven plate corresponding to the first output shaft 42, so that the input end 41 of the dual clutch 4 is connected to the first output shaft. shaft 42 transmission connection; when the transmission is required to input power in the second gear, the housing of the dual clutch 4 can be controlled to engage with the driven plate corresponding to the second output shaft 43, so that the input end 41 of the dual clutch 4 is connected to the second output shaft 43 The output shaft 43 is in transmission connection.

The first gear gear set includes the first driving gear 5 and the first driven gear 6. The first driving gear 5 and the first driven gear 6 can be directly meshed, or both can be meshed with the intermediate gear, so that the gear can be transmitted through the intermediate gear. connect. The second gear gear set includes a second driving gear 7 and a second driven gear 8. The second driving gear 7 and the second driven gear 8 can be directly meshed, or both can be meshed with an intermediate gear, so that transmission through the intermediate gear connect. The first gear set may be a low gear set, and the second gear set may be a high gear set, but the disclosure is not limited thereto. In other embodiments, the first gear set may be a high gear set. The gear set, the second gear set can be a low gear set.

Speed changer can also comprise speed changer output shaft 9, and first driven gear 6 and second driven gear 8 all are installed on the speed changer output shaft 9, make speed changer output shaft 9 and first driven gear 6 and second driven gear 8 synchronized rotation. Regardless of whether the power from the first gear set or the second gear set is output externally through the transmission output shaft 9 .

In the first embodiment shown in FIG. 1 , the hybrid drive system further includes a first motor 2, the transmission is located between the engine 1 and the first motor 2, and the power shaft 21 of the first motor 2 is connected to the output shaft of the engine 1. Coaxial connection, the first output shaft 42 of the dual clutch 4 is vacantly sleeved on the second output shaft 43 of the dual clutch 4 , and the second output shaft 43 of the dual clutch 4 is vacantly sleeved on the power shaft 21 of the first motor 2 . The first electric machine 2 can generate electricity under the drive of the engine 1, and can also be used as an electric motor to drive the vehicle. By connecting the output shaft of the engine 1 coaxially with the power shaft 21 of the first motor 2, intermediate transmission mechanisms such as gears are omitted, on the one hand, the load can be reduced, and the transmission efficiency can be improved; on the other hand, the first motor 2 can be With modular design, it is not necessary to adjust the rotor and stator according to the arrangement of the transmission mechanism, and on the other hand, it can reduce noise. Moreover, the engine, transmission, and first motor are arranged in sequence, making full use of the space in the axial direction of the powertrain, and the volume limit of the first motor is small, so that the selection range is large, and the appropriate motor can be selected according to the specific conditions of the vehicle . By making the two output shafts of the dual clutch 4 coaxial with the power shaft 21 of the first motor 2, the structure of the hybrid drive system is more compact, and it is convenient to arrange on the whole vehicle.

In the first embodiment shown in FIG. 1 , the power shaft 21 of the first motor 2 can be directly connected to the output shaft of the engine 1 , or can be connected to the output shaft of the engine 1 through the housing of the dual clutch 4 .

Specifically, in a feasible manner, as shown in FIG. 9 , one side of the housing of the dual clutch 4 is connected to the power shaft 21 of the first motor 2 through a key, and the other side is connected to the output shaft of the engine 1 on the outside. Connect by key. In this case, since the power shaft 21 of the first electric motor 2 does not pass through the housing of the dual clutch 4, no additional arrangement of an oil-air seal between the power shaft 21 of the first electric motor 2 and the housing of the dual clutch 4 is required Structure, simple structure, strong sealing reliability.

In another feasible manner, as shown in FIG. 10 , the power shaft 21 of the first motor 2 passes through the housing of the dual clutch 4 to be keyed to the output shaft of the engine 1 , and the housing of the dual clutch 4 is hollowly sleeved on the On the power shaft 21 of the first motor 2 , the output shaft of the engine 1 is also keyed to the housing of the double clutch 4 . In this case, a sealing structure can be provided between the power shaft 21 of the first motor 2 and the housing of the dual clutch 4 to ensure the internal sealing of the dual clutch 4 .

In the first embodiment shown in FIG. 1 , the hybrid drive system further includes a second motor 3 , and the output part is also used to output power from the second motor 3 to drive the vehicle. The second electric machine 3 can be used not only as an electric motor for driving the vehicle, but also as a generator for generating electricity.

The second electric machine 3 can be connected to the hybrid drive system in various ways. In the first embodiment shown in Fig. 1, a first transmission gear 11 is installed on the power shaft of the second motor 3, and the first transmission gear 11 rotates synchronously with the power shaft of the second motor 3. The gear 11 meshes with the first driving gear 5 of the first gear set.

The output portion is configured to transmit power output by the transmission to wheels of the vehicle. For example, the output may include an output gear 17 and a differential 18 . The output gear 17 is installed on the transmission output shaft 9 and rotates synchronously with the transmission output shaft 9 , and the output gear 17 meshes with the final reduction gear 19 of the differential 18 . The function of the differential 18 is to make the left and right wheels roll at different angular velocities when the vehicle is turning or driving on an uneven road surface, so as to ensure pure rolling motion between the wheels on both sides and the ground. The differential gear 18 is provided with a main reduction gear 19 , and the final reduction gear 19 may be arranged on a housing of the differential gear 18 , for example.

Fig. 2 is a schematic schematic diagram of a second embodiment according to the present disclosure. The difference between the second embodiment and the first embodiment mainly lies in: in the second embodiment, the second transmission gear 12 is installed on the power shaft of the second motor 3, and the second transmission gear 12 is connected with the first gear. The first driven gear 6 of the bit gear set meshes.

Fig. 3 is a schematic schematic diagram of a third embodiment according to the present disclosure. The difference between the third embodiment and the first embodiment mainly lies in that in the third embodiment, a third transmission gear 13 is installed on the power shaft of the second motor 3, and the third transmission gear 13 is connected to the second gear. The second drive gear 7 of the bit gear set meshes.

Fig. 4 is a schematic schematic diagram of a fourth embodiment according to the present disclosure. The difference between the fourth embodiment and the first embodiment mainly lies in that in the fourth embodiment, a fourth transmission gear 14 is installed on the power shaft of the second motor 3, and the fourth transmission gear 14 is connected to the second gear. The second driven gear 8 of the bit gear set meshes.

Fig. 5 is a schematic schematic diagram according to a fifth embodiment of the present disclosure. The difference between the fifth embodiment and the first embodiment is that in the fifth embodiment, the power shaft of the second motor 3 is connected to the transmission output shaft 9 through a pair of transmission gears, and the power of the second motor 3 The shaft is vacantly sleeved on the power shaft 21 of the first motor 2 . Specifically, a fifth transmission gear 15 is installed on the power shaft of the second motor 3 , a sixth transmission gear 16 is installed on the transmission output shaft 9 , and the fifth transmission gear 15 meshes with the sixth transmission gear 16 . Compared with the first embodiment, the fifth embodiment has the advantage that the power shaft of the second motor 3 is vacantly sleeved on the power shaft 21 of the first motor 2, so that the two motors can partially overlap in the axial space, reducing The radial size of the powertrain is reduced.

Fig. 6 is a schematic schematic diagram according to a sixth embodiment of the present disclosure. The difference between the sixth embodiment and the fifth embodiment is that in the sixth embodiment, the power shaft of the second motor 3 is arranged in parallel with the power shaft 21 of the first motor 2, and the two are no longer coaxial and empty. set.

Fig. 7 is a schematic principle diagram according to a seventh embodiment of the present disclosure. The difference between the seventh embodiment and the first embodiment mainly lies in that in the seventh embodiment, the power shaft of the second motor 3 is coaxially connected with the transmission output shaft 9 . Specifically, the power shaft of the second motor 3 and the output shaft 9 of the transmission can be connected by keys or integrally formed, for example.

Fig. 8 is a schematic schematic diagram of an eighth embodiment according to the present disclosure. The difference between the eighth embodiment and the first embodiment is that in the eighth embodiment, the hybrid drive system further includes a synchronizer 20, a seventh transmission gear 31 and an eighth transmission gear 32, the seventh transmission gear 31 meshes with the first driven gear 6, the eighth transmission gear 32 meshes with the second driven gear 8, the seventh transmission gear 31 and the eighth transmission gear 32 are sleeved on the power shaft of the second motor 3, and the synchronizer 20 Set on the power shaft of the second motor 3 and between the seventh transmission gear 31 and the eighth transmission gear 32 , the synchronizer 20 selectively engages with the seventh transmission gear 31 or the eighth transmission gear 32 . In this case, the second electric motor 3 can realize two-speed power output. Specifically, when the synchronizer 20 is engaged with the seventh transmission gear 31, the power of the second motor 3 passes through the synchronizer 20, the seventh transmission gear 31, the first driven gear 6, the transmission output shaft 9, the output gear 17, The main reduction gear 19 and the differential gear 18 are transmitted to the wheels; when the synchronizer 20 is engaged with the eighth transmission gear 32, the power of the second motor 3 passes through the synchronizer 20, the eighth transmission gear 32, and the second driven gear 8 in sequence , the transmission output shaft 9, the output gear 17, the final reduction gear 19 and the differential 18 are transmitted to the wheels. The hybrid drive system of the present disclosure may have the following operating conditions;

1. The second motor 3 is in pure electric working condition. Both the input end 41 and the two output shafts of the control dual clutch 4 are disconnected, the engine 1 and the first motor 2 are not working, and the second motor 3 drives the wheels through the differential 18 . This working condition is mainly used for starting, medium and low speed or urban roads, etc., and the battery has a relatively high power. The advantage of this working condition is that the second motor 3 is directly driven, the transmission chain is the shortest, and the parts involved in the work are the least, so that the highest transmission efficiency and the minimum noise can be achieved.

2. Double-motor pure electric working condition. The second motor 3 is the main power source with full power output; the first motor 2 is the auxiliary power source with limited power output. The input 41 controlling the dual clutch 4 is connected to one of the two output shafts. The two motors adjust the rotational speed to ensure that the angular velocity transmitted to the output shaft 9 of the transmission is consistent. This working condition is mainly used for acceleration, climbing, overtaking, high-speed and other heavy load occasions, and the battery power is high. Compared with single-motor drive, this working condition has better power performance, better economy and lower noise than hybrid drive, and the typical application that can highlight its advantages is the steep slope (winding mountain road) Congested traffic.

3. Parallel working condition. The engine 1, the first motor 2 and the second motor 3 all drive wheels. The speed of the two motors can be adjusted to match the angular velocity of the output shaft 9 of the transmission. The advantage of this working condition is that the three-engine engine 1 , the first motor 2 and the second motor 3 are driven simultaneously, which can exert the maximum power performance.

4. Working conditions in series. Both the input end 41 and the two output shafts of the control dual clutch 4 are disconnected, the engine 1 drives the first motor 2 to generate electricity, and the second motor 3 drives the wheels.

5. Engine 1 is driven independently. The input end 41 of the control dual clutch 4 is connected to one of the two output shafts, the first motor 2 and the second motor 3 are not working, and the gear switching can be realized through the dual clutch 4 .

6. Engine 1 driving charging condition. On the basis of the independent driving condition of the engine 1, the first motor 2 is simultaneously driven to generate electricity.

7. Braking/deceleration feedback working conditions. The second electric machine 3 generates electricity when the vehicle is braked. This working condition is mainly used for vehicle downhill, braking or deceleration. The advantage of this working condition is that it can maximize the feedback energy when decelerating or braking.

8. Mixed working conditions. On the one hand, the engine 1 drives the first motor 2 to generate electricity, and on the other hand, the power is transmitted to the differential 18 through the dual clutch 4 and the gear set to drive the wheels, and the second motor 3 drives the wheels through the differential 18 . This working condition is mainly used for acceleration, climbing and other large load occasions and the situation of low power. The advantage of this working condition is that the full power of the engine 1 can be exerted, which not only ensures the power performance of the vehicle, but also simultaneously generates power to keep the battery power.

In the present disclosure, a two-speed transmission with simple structure and convenient operation can be obtained by skillfully combining the double clutch 4 with the two gear sets. Since the transmission can provide two gears, the speed and torque of the engine 1 can be adjusted to a certain extent, and the working efficiency of the engine 1 can be improved.

In the present disclosure, the gear switching of the transmission is realized through the dual clutch 4, which can allow the engagement process of one driven disc to overlap with the disconnection process of the other driven disc during shifting, thereby avoiding The instantaneous interruption of torque transmission ensures the smoothness of the shifting process and the operation of the whole vehicle. Compared with synchronizers with more complex mechanical structures, dual clutches have greater advantages in terms of smoothness and reliability.

The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, various possible combinations are not further described in this disclosure.

In addition, various implementations of the present disclosure can also be combined in any way, as long as they do not violate the idea of the present disclosure, they should also be regarded as the content disclosed in the present disclosure.

Claims (18)

1. a kind of hybrid electric drive system, which is characterized in that including：

Engine (1)；

First motor (2), the line shaft (21) and the output shaft of the engine (1) of the first motor (2) are coaxially connected；

Speed changer, for the speed changer between the engine (1) and the first motor (2), the speed changer includes double Clutch (4), the first gear gear set, the second gear gear set, output shaft and the double clutch (4) of the engine (1) Input terminal (41) connects, and the first output shaft (42) of the double clutch (4) is connected to the first gear gear set, described double The second output shaft (43) of clutch (4) is connected to the second gear gear set；

Output section, the output section be used to export the power that is transmitted by the first gear gear set or the second gear gear set with Drive vehicle.

2. system according to claim 1, which is characterized in that the first output shaft (42) empty set of the double clutch (4) On the second output shaft (43), the power of the second output shaft (43) empty set of the double clutch (4) in the first motor (2) On axis (21).

3. system according to claim 2, which is characterized in that the input terminal (41) of the double clutch (4) is described double The shell of clutch (4), the side of the shell are connect with the line shaft (21) of the first motor (2), the shell it is another The output axis connection of side and the engine (1) makes the line shaft of the output shaft and the first motor (2) of engine (1) (21) it rotates synchronously.

4. system according to claim 3, which is characterized in that the side of the shell is dynamic with the first motor (2) Power axis (21) passes through key connection by key connection, the other side of the shell and the output shaft of the engine (1).

5. system according to claim 2, which is characterized in that the input terminal (41) of the double clutch (4) is described double The line shaft (21) of the shell of clutch (4), the first motor (2) passes through the shell with defeated with the engine (1) Go out axis connection, the shell empty set on the line shaft (21) of the first motor (2), the output shaft of the engine (1) with The shell connection.

6. system according to claim 5, which is characterized in that the line shaft (21) of the first motor (2) and the shell Sealing structure is equipped between body.

7. system according to claim 1, which is characterized in that the speed changer includes transmission output shaft (9), the change Fast device output shaft (9) connect with the first gear gear set and the second gear gear set, and the transmission output shaft (9) is to institute State output section passing power.

8. system according to claim 7, which is characterized in that the first gear gear set includes the first driving gear (5) and the first driven gear (6), the second gear gear set include the second driving gear (7) and the second driven gear (8), The first output shaft (42) of the double clutch (4) is connected to first driving gear (5), and the of the double clutch (4) Two output shafts (43) are connected to second driving gear (7), the transmission output shaft (9) and first driven gear (6) it connects, the transmission output shaft (9) and second driven gear (8) connection.

9. system according to claim 8, which is characterized in that the system also includes the second motor (3), the output sections Power of the output from second motor (3) is additionally operable to drive vehicle.

10. system according to claim 9, which is characterized in that the line shaft and the first driving cog of second motor (3) (11) connection is taken turns, first transmission gear (11) is engaged with first driving gear (5).

11. system according to claim 9, which is characterized in that the line shaft and the second driving cog of second motor (3) (12) connection is taken turns, second transmission gear (12) is engaged with first driven gear (6).

12. system according to claim 9, which is characterized in that the line shaft of second motor (3) and third driving cog (13) connection is taken turns, the third transmission gear (13) is engaged with second driving gear (7).

13. system according to claim 9, which is characterized in that the line shaft and the 4th driving cog of second motor (3) (14) connection is taken turns, the 4th transmission gear (14) is engaged with second driven gear (8).

14. system according to claim 9, which is characterized in that the line shaft and the 5th driving cog of second motor (3) Take turns (15) connection, the 5th transmission gear (15) engages with the 6th transmission gear (16), the 6th transmission gear (16) and Transmission output shaft (9) connection.

15. system according to claim 14, which is characterized in that the line shaft empty set of second motor (3) is described On the line shaft (21) of first motor (2).

16. system according to claim 9, which is characterized in that the line shaft of second motor (3) and the speed changer Output shaft (9) is coaxially connected.

17. system according to claim 9, which is characterized in that the system also includes synchronizer (20), the 7th driving cogs Wheel (31) and the 8th transmission gear (32), the 7th transmission gear (31) are engaged with first driven gear (6), and described the Eight transmission gears (32) are engaged with second driven gear (8), and the line shaft of second motor (3) passes through the synchronizer (20) the 7th transmission gear (31) or the 8th transmission gear (32) are optionally connected to.

18. a kind of vehicle, which is characterized in that include the hybrid drive train according to any one of claim 1-17 System.