CN207809038U - 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 engine drives the first motor to generate electricity; a transmission, the transmission includes a dual clutch, a first gear gear set, a second gear gear set, and a transmission output shaft. The output shaft of the engine is connected to the first gear set, the output shaft of the engine is connected to the second gear set, and the dual clutch is arranged between the first gear set and the second gear set. Between the gear sets, the first gear set and the second gear set are selectively connected to the transmission output shaft through the dual clutch; the output part is used to output the The power transmitted by the transmission output shaft is used 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 engine drives the first motor to generate electricity; a transmission, the transmission includes a double clutch, a first gear gear set , the second gear set, the transmission output shaft, the output shaft of the engine is connected with the first gear set, the output shaft of the engine is connected with the second gear set, and the dual clutch is arranged on Between the first gear set and the second gear set, the first gear set and the second gear set are selectively connected to the transmission output shaft through the dual clutch; the output part, the output part is used to output the power transmitted by the output shaft of the transmission to drive the vehicle.

Optionally, the transmission further includes a transmission input shaft, the transmission input shaft is connected to the first gear set, the transmission input shaft is connected to the second gear set, and the output of the engine A shaft is connected to the transmission input shaft.

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 transmission input shaft and The first driving gear is connected, and the transmission input shaft is connected with the second driving gear.

Optionally, the dual clutch includes a first input shaft, a second input shaft and an output end, the first input shaft of the dual clutch is connected to the first driven gear, and the second input shaft of the dual clutch It is connected with the second driven gear, and the output end of the dual clutch is connected with the transmission output shaft.

Optionally, the first input shaft of the dual clutch is keyed to the first driven gear, the second input shaft of the dual clutch is keyed to the second driven gear, and the output of the dual clutch The end is the housing of the dual clutch, the transmission output shaft passes through the housing of the dual clutch and is keyed to the housing of the dual clutch, the first driven gear and the second driven gear are idle Sleeve on the transmission output shaft.

Optionally, the dual clutch is an electromagnetic dual clutch, which includes a shaft sleeve, a yoke, a first driving disc, a second driving disc, a first driven disc, a second driven disc, a first coil and the second coil, the shaft sleeve is fixed on the transmission output shaft, the yoke is fixedly connected to the middle part of the shaft sleeve, and the first driving disk is slidably connected to one end of the shaft sleeve, so The second driving disc is slidably connected to the other end of the bushing, the first driven disc is fixed on the first driven gear and rotates with the first driven gear, and the second driven The disc is fixed on the second driven gear and rotates following the second driven gear, the first coil is fixed on the side of the yoke close to the first driving disc, and the second coil is fixed On the side of the yoke close to the second driving disk.

Optionally, the first motor is located between the engine and the transmission, one end of the power shaft of the first motor is connected to the output shaft of the engine, and the other end of the power shaft of the first motor is connected to the connected to the transmission input shaft.

Optionally, the system further includes a clutch, and the other end of the power shaft of the first motor is connected to the transmission input shaft through the clutch.

Optionally, the clutch is integrated in the first electric motor.

Optionally, the output shaft of the engine is connected to the power shaft of the first electric motor through a gear increasing mechanism.

Optionally, the gear speed-up mechanism includes a first speed-up gear and a second speed-up gear that mesh with each other, the first speed-up gear is connected to the power shaft of the first motor, and the second speed-up gear The gear is connected to the output shaft of the engine, wherein the number of teeth of the first speed-up gear is smaller than the number of teeth of the second speed-up gear.

Optionally, the system includes a clutch through which the output shaft of the engine is connected to the input shaft of the transmission.

Optionally, the output shaft of the engine is connected to the first motor through a belt transmission mechanism.

Optionally, the system further includes a second electric motor that transmits power to the transmission output shaft.

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

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

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.

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;

Fig. 6 is a cross-sectional schematic diagram of an electromagnetic dual clutch in a hybrid drive system according to a fifth embodiment of the present disclosure;

Fig. 7 is a schematic diagram of first gear transmission of a hybrid drive system according to a fifth embodiment of the present disclosure;

Fig. 8 is a schematic diagram of second gear transmission of a hybrid drive system according to a fifth embodiment of the present disclosure.

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 transmission includes a dual clutch 4, a first gear gear set, a second gear gear set, and a transmission output shaft 10. Wherein, as shown in Figure 1, the output shaft of the engine 1 is connected with the first gear set, the output shaft of the engine 1 is connected with the second gear set, and the dual clutch 4 is arranged between the first gear set and the second gear set. Among the gear sets, the first gear set and the second gear set are selectively connected to the transmission output shaft 10 through the dual clutch 4 .

Specifically, in the first embodiment shown in FIG. 1, the dual clutch 4 has a first input shaft 42, a second input shaft 43, and an output end 41, and the first input shaft 42 of the dual clutch 4 is connected to the first Gear set, the second input shaft 43 of the dual clutch 4 is connected to the second gear set, and the output end 41 of the dual clutch 4 is connected to the transmission output shaft 10 .

The output 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 input shaft 42 of double clutch 4 can be connected with one of them driven disk by key, double clutch 4 The second input 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 output end 41 is disconnected from both the first input shaft 42 and the second input shaft 43 . When it is necessary to drive an input shaft to the housing, the corresponding driven disc can be controlled to engage with the housing so that the driven disc drives the housing to rotate synchronously, that is, the output end 41 is connected to the first input shaft 42 and the second input shaft. One of the shafts 43 is in transmission connection, so that the power transmitted from one of the first input shaft 42 and the second output shaft 43 can be output through the output end 41 .

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 output terminal and the two input shafts can Switch between full disconnect and drive connection of the output to one of the two input shafts.

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

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.

The first driving gear 5 and the second driving gear 7 can be directly installed on the output shaft of the engine 1 . In the first embodiment shown in Fig. 1, the transmission also includes a transmission input shaft 9, the first driving gear 5 and the second driving gear 7 are all installed on the transmission input shaft 9, the output shaft of the engine 1 and the transmission input shaft 9 are coaxially connected, so that the power of the engine 1 can be simultaneously transmitted to the first gear set and the second gear set through the transmission input shaft 9. The first driving gear 5 and the second driving gear 7 rotate synchronously with the transmission input shaft 9 .

The first driven gear 6 and the second driven gear 8 are idly sleeved on the transmission output shaft 10 , and the transmission output shaft 10 passes through the housing of the dual clutch 4 and is keyed to the housing of the dual clutch 4 . The first input shaft 42 of the dual clutch 4 is idling on the transmission output shaft 10 and is keyed to the first driven gear 6 , and the second input shaft 43 of the dual clutch 4 is idling on the transmission output shaft 10 and is connected to the second driven gear 6 . The moving gear is connected by 8 keys.

The hybrid drive system also includes a first motor 2, which can generate electricity driven by the engine 1, and can also be used as an electric motor to drive the vehicle. In the first embodiment shown in Figure 1, the first motor 2 is located between the engine 1 and the transmission, one end of the power shaft of the first motor 2 is connected to the output shaft of the engine 1, and the other end is connected to the input shaft 9 of the transmission . Further, the other end of the power shaft of the first motor 2 can be connected with the transmission input shaft 9 through a clutch 11 . By setting the clutch 11, when the engine 1 drives the first motor 2 to generate electricity, the clutch 11 can be controlled to disengage to disengage the transmission from the power shaft of the first motor 2, thereby reducing the load and improving the power generation efficiency. In one embodiment, the clutch 11 can be integrated inside the first motor 2 to reduce the axial space of the hybrid power system and make the system more compact.

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 12 and a second transmission gear 13 are installed on the power shaft of the second motor 3, and the first transmission gear 12 and the second transmission gear 13 are connected with the second transmission gear 13. The power shaft of the motor 3 rotates synchronously, the first transmission gear 12 meshes with the first driven gear 6 of the first gear set, and the second transmission gear 13 meshes with the second driven gear 8 of the second 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 14 and a differential 15 . The output gear 14 is mounted on the transmission output shaft 10 and rotates synchronously with the transmission output shaft 10 , and the output gear 14 meshes with the final reduction gear 16 of the differential 15 . The function of the differential 15 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 15 is provided with a main reduction gear 16 , and the final reduction gear 16 may be arranged on a housing of the differential gear 15 , 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 is that in the second embodiment, the power shaft of the first motor 2 is connected with the output shaft of the engine 1 through a gear speed-up mechanism, so that the first motor 2 The rotational speed of the engine 1 is greater than that of the engine 1, so that the engine 1 can be matched with the high-efficiency region when the first electric machine 2 is used as a generator, so as to improve the power generation efficiency. Specifically, a first speed-up gear 17 is installed on the power shaft of the first motor 2, a second speed-up gear 18 is installed on the output shaft of the engine 1, and the first speed-up gear 17 meshes with the second speed-up gear 18, The number of teeth of the first speed-up gear 17 is smaller than the number of teeth of the second speed-up gear 18 . In other unshown embodiments, the output shaft of the engine 1 may also be connected with the power shaft of the first electric motor 2 through a belt transmission mechanism. Specifically, the belt transmission mechanism may include a large pulley, a small pulley and a transmission belt, wherein the output shaft of the engine 1 is connected to the large pulley, and the power shaft of the first motor 2 is connected to the small pulley, so that the first motor 2 The rotational speed of is greater than the rotational speed of engine 1.

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, the power shaft of the second motor 3 is directly connected coaxially with the transmission output shaft 10 .

Fig. 4 is a schematic schematic diagram of a fourth embodiment according to the present disclosure. The difference between the fourth embodiment and the second embodiment mainly lies in that in the fourth embodiment, the power shaft of the second motor 3 is directly connected coaxially with the transmission output shaft 10 .

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 mainly that: in the fifth embodiment, the dual clutch 4 is an electromagnetic dual clutch, and the first driven gear 6 and the second driven gear 8 pass through the electromagnetic A type dual clutch is selectively connected to the transmission output shaft 10. Specifically, as shown in Figure 6, the electromagnetic double clutch includes a shaft sleeve 151, a yoke 152, a first driving disc 153, a second driving disc 154, a first driven disc 155, a second driven disc 156, a coil support 159. The first coil 157 and the second coil 158, the shaft sleeve 151 is fixed on the transmission output shaft 10, the yoke 152 is fixedly connected to the middle part of the shaft sleeve 151, and the first driving disc 153 Slidingly connected to one end of the shaft sleeve 151, the second driving disc 154 is slidably connected to the other end of the shaft sleeve 151, the first driven disc 155 is fixed on the first driven gear 6 and Following the rotation of the first driven gear 6, the second driven plate 156 is fixed on the second driven gear 8 and rotates following the second driven gear 8, and the first coil 157 is fixed on The yoke 152 is close to the side of the first driving disk 153, the second coil 158 is fixed on the side of the yoke 152 close to the second driving disk 154, and the coil support 159 connects the external power supply to the first driving disk 154. Either the first coil 157 or the second coil 158 is turned on.

In one embodiment, as shown in FIG. 6, the first driving disc 153 includes a first armature 1531 and a first inner friction plate 1532 fixedly connected to the first armature 1531, and the second driving disc 154 includes a second armature 1541 and a second inner friction plate 1542 fixedly connected to the second armature 1541, the first armature 1531 and the second armature 1541 are slidably connected to the shaft sleeve 151 through a spline; The first driven plate 155 includes a first gear connecting piece 1551 and a first outer friction plate 1552, the first gear connecting piece 1551 is fixedly connected with the first driven gear 6, and the first outer friction plate 1552 Fixedly connected to the first gear connector 1551 and matched with the first inner friction plate 1532, the second driven disc 156 includes a second gear connector 1561 and a second outer friction plate 1562, the first The second gear connecting member 1561 is fixedly connected to the second driven gear 8 , and the second outer friction plate 1562 is fixedly connected to the second gear connecting member 1561 and cooperates with the second inner friction plate 1542 .

As shown in Figure 7, when the first gear needs to be engaged, the first coil 157 is turned on, and due to the magnetic force, the first armature 1531 and the first inner friction plate 1532 fixed on the first armature 1531 slide towards the direction of the yoke 152 , the first inner friction plate 1532 and the first outer friction plate 1552 rub against each other, and the rotation of the first driven gear 6 passes through the first gear connecting member 1551, the first outer friction plate 1552, the first inner friction plate 1532, the second An armature 1531 and a shaft sleeve 151 are transmitted to the transmission output shaft 10, which drives the output gear 14 fixed on the transmission output shaft 10 to rotate, and transmits the power to the final reduction gear 16 meshing with the output gear 14, and then through the differential 15. The power is transmitted to the left half-shaft and the right half-shaft connected to the differential 15, and the vehicle runs in first gear, and the power transmission path of the first gear is shown as the thick solid line in FIG. 7 .

As shown in Figure 8, when the second gear needs to be engaged, the second coil 158 is turned on, and due to the magnetic force, the second armature 1541 and the second inner friction plate 1542 fixed on the second armature 1541 slide towards the direction of the yoke 152 , the second inner friction plate 1542 and the second outer friction plate 1562 rub against each other, and the rotation of the second driven gear 8 passes through the second gear connector 1561, the second outer friction plate 1562, the second inner friction plate 1542, the second The second armature 1541 and the bushing 151 are transmitted to the transmission output shaft 10, which drives the output gear 14 fixed on the transmission output shaft 10 to rotate, and transmits the power to the final reduction gear 16 meshing with the output gear 14, and then through the differential 15. The power is transmitted to the left half-shaft and the right half-shaft connected to the differential 15, and the vehicle runs in second gear. The power transmission path of the above process is shown by the thick solid line in FIG. 8 .

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. Neither the engine 1 nor the first motor 2 work, and the second motor 3 drives the wheels through the differential 15 . This working condition is mainly used for situations such as constant speed or urban road surface, 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. One of the two input shafts controlling the dual clutch 4 is connected to the output. The rotational speeds of the two electric motors are adjusted to ensure that the angular velocity transmitted to the output shaft 10 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 10 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. The control clutch is 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. One of the two output shafts controlling the dual clutch 4 is connected to the input end, 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 braking the vehicle. 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; on the other hand, the power is transmitted to the differential 15 through the gear set and the dual clutch 4 to drive the wheels; the second motor 3 drives the wheels through the differential 15 . 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 (17)

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

Engine (1)；

First motor (2), the engine (1) drive the first motor (2) to generate electricity；

Speed changer, the speed changer include double clutch (4), the first gear gear set, the second gear gear set, speed changer output The output shaft of axis (10), the engine (1) is connect with the first gear gear set, the output shaft of the engine (1) with The second gear gear set connection, the double clutch (4) are arranged in the first gear gear set and the second shift gear Between group, the first gear gear set and the second gear gear set are optionally connected to institute by the double clutch (4) State transmission output shaft (10)；

Output section, the output section is for exporting the power transmitted by the transmission output shaft (10) to drive vehicle.

2. system according to claim 1, which is characterized in that the speed changer further includes transmission input shaft (9), described Transmission input shaft (9) is connect with the first gear gear set, the transmission input shaft (9) and second shift gear Group connection, the output shaft of the engine are connect with the transmission input shaft (9).

3. system according to claim 2, 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 transmission input shaft (9) connect with first driving gear (5) and the second driving gear (7).

4. system according to claim 3, which is characterized in that the double clutch (4) includes the first input shaft (42), the Two input shafts (43) and output end (41), first input shaft (42) connect with first driven gear (6), and described second Input shaft (43) is connect with second driven gear (8), and the output end (41) connect with the transmission output shaft (10).

5. system according to claim 4, which is characterized in that the first input shaft (42) of the double clutch (4) and institute State the first driven gear (6) key connection, the second input shaft (43) of the double clutch (4) and second driven gear (8) Key connection, the output end (41) of the double clutch (4) are the shell of the double clutch (4), the transmission output shaft (10) it passes through the shell and is keyed with the shell, first driven gear (6) and the second driven gear (8) empty set exist On the transmission output shaft (10).

6. system according to claim 3, which is characterized in that the double clutch (4) is electromagnetic dual-clutch, the electricity Magnetic-type double clutch includes axle sleeve (151), yoke (152), the first driving disc spacing pressing (153), the second driving disc spacing pressing (154), first driven Disk (155), the second driven disc (156), first coil (157) and the second coil (158), the axle sleeve (151) are fixed on described On transmission output shaft (10), the yoke (152) is fixedly connected on the middle part of the axle sleeve (151), first driving disc spacing pressing (153) it is slidably connected at one end of the axle sleeve (151), second driving disc spacing pressing (154) is slidably connected at the axle sleeve (151) The other end, first driven disc (155) is fixed on first driven gear (6) and follows first driven gear (6) it rotates, second driven disc (156) is fixed on second driven gear (8) and follows second driven gear (8) it rotates, the first coil (157) is fixed on side of the yoke (152) close to first driving disc spacing pressing (153), institute State the side that the second coil (158) is fixed on the yoke (152) close to second driving disc spacing pressing (154).

7. system according to claim 2, which is characterized in that the first motor (2) is located at the engine (1) and becomes Between fast device, one end of the line shaft of the first motor (2) is connected with the output shaft of the engine (1), first electricity The other end of the line shaft of machine (2) is connected with the transmission input shaft (9).

8. system according to claim 7, which is characterized in that the system also includes clutch (11), first electricity The other end of the line shaft of machine (2) is connected with the transmission input shaft (9) by the clutch (11).

9. system according to claim 8, which is characterized in that the clutch (11) is integrated in the first motor (2) It is interior.

10. system according to claim 2, which is characterized in that the output shaft of the engine (1) and the first motor (2) line shaft is connected by gear speed increasing mechanism.

11. system according to claim 10, which is characterized in that the gear speed increasing mechanism includes intermeshing first Speed increasing gear (17) and the second speed increasing gear (18), the line shaft of first speed increasing gear (17) and the first motor (2) Connection, the output axis connection of second speed increasing gear (18) and the engine (1), wherein first speed increasing gear (17) the number of teeth is less than the number of teeth of second speed increasing gear (18).

12. system according to claim 10, which is characterized in that the system comprises clutch (11), the engines (1) output shaft is connected with the transmission input shaft (9) by the clutch (11).

13. system according to claim 2, which is characterized in that the output shaft of the engine (1) and the first motor (2) it is connected by tape handler.

14. system according to claim 3, which is characterized in that the system also includes the second motor (3), described second Motor (3) is to the transmission output shaft (10) passing power.

15. system according to claim 14, which is characterized in that the system also includes the first transmission gears (12) and Two transmission gears (13), first transmission gear (12) are engaged with the first driven gear (6), second transmission gear (13) It is engaged with the second driven gear (8), the line shaft of second motor (3) is connected to first transmission gear (12) and second Transmission gear (13).

16. system according to claim 14, which is characterized in that the line shaft of second motor (3) and the speed change Device output shaft (10) is coaxially connected.

17. a kind of vehicle, which is characterized in that include the hybrid drive train according to any one of claim 1-16 System.