WO2018000963A1

WO2018000963A1 - Power drive system and vehicle

Info

Publication number: WO2018000963A1
Application number: PCT/CN2017/084028
Authority: WO
Inventors: 廉玉波; 凌和平; 翟震; 徐友彬
Original assignee: 比亚迪股份有限公司
Priority date: 2016-06-29
Filing date: 2017-05-11
Publication date: 2018-01-04
Also published as: CN107539102B; CN107539102A

Abstract

A power drive system (100), comprising: an engine (4); a plurality of input shafts (11, 12), the engine (4) engaging at least one of the plurality of input shafts (11, 12), a gear driving gear being arranged on each input shaft (11, 12); a plurality of output shafts (21, 22), a gear driven gear being arranged on each output shaft (21, 22); a reverse gear shaft (3), reverse gear shaft first to third gears (31, 32, 33) being sleeved over the reverse gear shaft (3), the reverse gear shaft first gear (31) being engaged with a gear driving gear, the reverse gear shaft second gear (32) being engaged with a gear driven gear, the reverse gear shaft first gear to third gear (31, 32, 33) all being arranged to engage the reverse gear shaft (3); a reverse gear output gear (39) linked to the reverse gear shaft third gear (33), the reverse gear output gear (39) being fixedly arranged on an output shaft; and a first electric powered generator (3) linked to the reverse gear shaft (3). Also disclosed is a vehicle comprising the present power drive system (100).

Description

Power drive system and vehicle

Technical field

The present disclosure relates to the field of automotive technology, and more particularly to a power drive system and a vehicle.

Background technique

With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, hybrid vehicles are driven by engines and/or motors with multiple drive modes to improve transmission efficiency and fuel economy.

However, in the related art known to the inventors, the transmission structure in the hybrid vehicle is complicated, the transmission mode is small, and the transmission efficiency is low in the pure electric mode.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems in the related art to some extent. To this end, the present disclosure proposes a power drive system in which the pure electric mode transmission efficiency is high.

The present disclosure also proposes a vehicle.

A power drive system of a vehicle according to the present disclosure, the power drive system comprising: an engine; a plurality of input shafts, the engine being configured to selectively engage at least one of the plurality of input shafts, each of the inputs a gear driving gear is disposed on the shaft; a plurality of output shafts, each of the output shafts is provided with a gear driven gear, and the plurality of gear driven gears are correspondingly engaged with the plurality of gear driving gears a reverse shaft, the reverse shaft is provided with a reverse gear first gear, a reverse shaft second gear and a reverse shaft third gear, and the reverse gear first gear and one of the gear driving gears Engaging, the reverse gear second gear meshes with one of the gear driven gears, each of the reverse gear first gear, the reverse gear second gear, and the reverse shaft third gear Each being configured to engage the reverse shaft; a reverse output gear, the reverse output gear is interlocked with the reverse gear third gear, the reverse output gear is fixedly disposed on one of the output shafts; a motor generator, the first electric Motor provided with the reverse-axis.

According to the power driving system of the embodiment of the present disclosure, the first motor generator and the reverse shaft are in a linkage relationship, so that the first motor generator has high transmission efficiency, and the complicated power in the transmission can be avoided in the conventional power driving system. The shifting and transmission chain can realize the problem of pure electric mode, so that the pure electric mode transmission requires fewer components, the transmission process is reliable, and the transmission efficiency is high. In addition, in the control logic, the control logic of the engine and the control logic of the first motor generator are independent of each other, thereby saving the development time and cost of the manufacturer, and avoiding the high power drive system. Barrier rate.

In addition, the power drive system according to the present disclosure may also have the following additional technical features:

In some examples of the present disclosure, the power drive system further includes: a reverse shaft first synchronizer for engaging the reverse shaft and the reverse shaft first gear.

In some examples of the present disclosure, the power drive system further includes: a reverse shaft second synchronizer for engaging the reverse shaft and the reverse shaft second gear.

In some examples of the present disclosure, the power drive system further includes: a reverse shaft third synchronizer for engaging the reverse shaft and the reverse shaft third gear.

In some examples of the present disclosure, the reverse shaft second synchronizer and the reverse shaft third synchronizer are the same synchronizer.

In some examples of the present disclosure, a first motor gear is further fixedly disposed on the reverse shaft, and the first motor gear is interlocked with the first motor generator.

In some examples of the disclosure, the power drive system further includes: a dual clutch having an input, a first output, and a second output, the input selectively engaging the first At least one of an output and the second output, the engine being coupled to the input.

In some examples of the present disclosure, the plurality of input shafts include: a first input shaft and a second input shaft sleeved on the first input shaft, the first input shaft and the first output end Connected, the second input shaft is coupled to the second output; the plurality of output shafts include: a first output shaft and a second output shaft.

In some examples of the present disclosure, the first input shaft is fixedly provided with a first driving gear, a three-speed driving gear, and a seven-speed driving gear, and the second input shaft is fixedly provided with a second gear driving gear and a four-six-speed drive gear; the first output shaft is provided with a driven gear, a second driven gear, a third driven gear and a fourth driven gear; the second output shaft is provided with five idle sets a driven gear, a sixth gear driven gear and a seventh gear driven gear; the first output shaft is provided with a third gear synchronizer between the first gear driven gear and the third gear driven gear The first output shaft is further provided with a second-four-speed synchronizer between the second-speed driven gear and the fourth-speed driven gear, and the second output shaft is disposed at the fifth gear A five-seven-speed synchronizer between the driven gear and the seven-speed driven gear, and a sixth-speed synchronizer on a side of the sixth-speed driven gear is further disposed on the second output shaft.

In some examples of the present disclosure, the reverse gear first gear meshes with the first gear drive gear, and the reverse gear shaft second gear meshes with the fifth gear driven gear or the sixth gear driven gear .

In some examples of the present disclosure, the power drive system further includes: a reverse shaft first synchronizer, the reverse shaft first synchronizer is disposed on the reverse shaft and configured to engage the reverse shaft a first gear; wherein the reverse shaft first synchronizer and the sixth speed synchronizer share the same fork mechanism, and the shift fork mechanism drives the reverse shaft first synchronizer to engage the reverse shaft When a gear is used, the six-speed synchronizer is separated from the six-speed driven gear, and the fork mechanism is driven When the six-speed synchronizer engages the sixth-speed driven gear, the reverse shaft first synchronizer is separated from the reverse gear first gear.

In some examples of the present disclosure, the first output shaft is fixedly disposed with a first output shaft output gear, and the second output shaft is fixedly disposed with a second output shaft output gear, the first output shaft output gear And the second output shaft output gear meshes with a differential power input gear of the vehicle, respectively.

A vehicle according to the present disclosure includes the power drive system.

The vehicle has the same beneficial effects as the power drive system and will not be described in detail herein.

DRAWINGS

1 is a schematic diagram of a power drive system in accordance with an embodiment of the present disclosure;

2 is a schematic diagram of a power drive system in accordance with another embodiment of the present disclosure;

3 is a schematic diagram of a power drive system in accordance with yet another embodiment of the present disclosure;

4 is a schematic diagram of a power drive system in accordance with still another embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a power drive system according to still another embodiment of the present disclosure; FIG.

6 is a schematic diagram of a power drive system in accordance with still another embodiment of the present disclosure;

7 is a schematic diagram of a power drive system in accordance with still another embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a power drive system in accordance with still another embodiment of the present disclosure.

detailed description

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative, and are not intended to be construed as limiting.

A power drive system 100 according to an embodiment of the present disclosure will be described in detail below with reference to FIGS. 1-8, which is suitable for use in a vehicle such as a hybrid vehicle, and as a power system of the vehicle, provides sufficient for the normal running of the vehicle. Power and electricity.

The power drive system 100 according to an embodiment of the present disclosure mainly includes two main parts, one of which may be a power source, the power source may be an engine 4, a motor generator, etc., and the second may be a transmission (including multiple input shafts, multiple outputs) Axle, gear gear pair, etc.), the transmission is used to realize the shifting function of power output to the power source, to meet the driving requirements or charging requirements of the vehicle.

For example, in some embodiments, as shown in FIGS. 1-8, the power drive system 100 may include the engine 4, the first motor generator 51, and the transmission, but is not limited thereto.

In conjunction with FIG. 1, in some embodiments, the transmission primarily includes a plurality of input shafts (eg, first input shaft 11 and second input shaft 12), a plurality of output shafts (eg, first output shaft 21, second Output shaft 22), reverse shaft 3 and each shaft Upper gears and shifting elements (eg synchronizer).

The engine 4 is configured to selectively engage at least one of the plurality of input shafts when power is transmitted between the engine 4 and the input shaft. In other words, when the engine 4 transmits power to the input shaft, the engine 4 can selectively engage with one of the plurality of input shafts to transmit power, or the engine 4 can also selectively couple with two or two of the plurality of input shafts More than one input shaft is simultaneously engaged to transmit power.

For example, in the examples of FIGS. 1-8, the plurality of input shafts may include two input shafts, a first input shaft 11 and a second input shaft 12, and the engine 4 is selectively connectable to the first input shaft 11 and the second input. One of the shafts 12 is engaged to transmit power. Alternatively, in particular, the engine 4 can also be simultaneously engaged with the first input shaft 11 and the second input shaft 12 to transmit power. Of course, it should be understood that the engine 4 can also be disconnected from the first input shaft 11 and the second input shaft 12 at the same time.

For those of ordinary skill in the art, the engagement state of the engine 4 with the input shaft is related to the particular operating conditions of the power drive system 100, as will be described in more detail below in connection with specific embodiments, and will not be described in detail herein.

The input shaft and the output shaft can be driven by the gear pair. For example, each input shaft is provided with a gear driving gear, and each output shaft is provided with a gear driven gear, and the plurality of gear driven gears mesh with the plurality of gear driving gears correspondingly, thereby forming a plurality of For gear pairs with different speed ratios.

In some embodiments of the present disclosure, as shown in FIGS. 1-6, the power drive system 100 may have seven forward gear pairs, ie, a first gear pair, a second gear pair, a third gear pair, and a fourth gear. The gear pair, the fifth gear pair, the sixth gear pair and the seven gear pair, the power drive system 100 also has a reverse gear pair.

In some embodiments of the present disclosure, as shown in FIGS. 7-8, the power drive system 100 may have six forward gear pairs, ie, a first gear pair, a second gear pair, a third gear pair, and a fourth gear. The gear pair, the fifth gear pair, and the sixth gear pair also have a reverse gear pair.

As shown in FIGS. 1 to 8, the reverse shaft 3 is provided with a reverse gear first gear 31 capable of engaging the reverse shaft 3, in other words, between the reverse shaft 3 and the reverse shaft first gear 31. . As shown in FIG. 1 to FIG. 8, the reverse shaft 3 may further be provided with a reverse shaft first synchronizer 3c for engaging the reverse shaft 3 and the reverse shaft first gear 31. . When the reverse shaft first synchronizer 3c is used to engage the reverse shaft 3 and the reverse shaft first gear 31, the reverse shaft 3 and the reverse shaft first gear 31 are driven, the reverse output gear 39 and the reverse gear Axis 3 linkage.

As shown in FIGS. 1-8, the reverse shaft 3 is provided with a reverse shaft second gear 32 capable of engaging the reverse shaft 3, in other words, between the reverse shaft 3 and the reverse shaft second gear 32. . As shown in FIGS. 1-8, the reverse shaft 3 may be further provided with a reverse shaft second synchronizer 32c for engaging the reverse shaft 3 and the reverse shaft second gear 32. . When the reverse shaft second synchronizer 32c is used to engage the reverse shaft 3 and the reverse shaft second gear 32, the reverse shaft 3 and the reverse shaft second gear 32 are driven.

It should be noted that the above-mentioned "coupling" can be understood as a plurality of components (for example, two) associated motions. Taking two components as an example, when one of the components moves, the other component also moves.

For example, in some embodiments of the present disclosure, the linkage of the gear to the shaft may be understood to mean that the shaft that is interlocked with the gear as it rotates will also rotate, or that the gear that is associated therewith will also rotate as the shaft rotates.

For another example, the linkage between the shaft and the shaft can be understood as the other shaft that is linked to and rotates when one of the shafts rotates.

For another example, the linkage of a gear and a gear can be understood as the fact that the other gear that is interlocked with one of the gears will also rotate when it rotates.

In the following description of "linkage" in the present disclosure, this understanding is made unless otherwise specified.

As shown in FIGS. 1 to 8, the reverse shaft 3 is provided with a reverse gear third gear 33 capable of engaging the reverse shaft 3, in other words, between the reverse shaft 3 and the reverse shaft third gear 33. The reverse shaft 3 may also be provided with a reverse shaft third synchronizer for engaging the reverse shaft 3 and the reverse shaft third gear 33. When the reverse shaft third synchronizer is used to engage the reverse shaft 3 and the reverse shaft third gear 33, the reverse shaft 3 and the reverse shaft third gear 33 are driven. Preferably, as shown in FIGS. 1-8, the reverse shaft second synchronizer 32c and the reverse shaft third synchronizer are the same synchronizer. In other words, the reverse shaft second gear 32 and the reverse shaft third gear 33 share a synchronizer. This reduces the number of components in the transmission and reduces the axial length of the transmission.

The reverse gear first gear 31 meshes with one of the gear drive gears. For example, as shown in FIGS. 1-8, the reverse gear first gear 31 meshes with the first gear drive gear 1a, such that the reverse gear first gear 31 Together with the first gear drive gear 1a, a reverse gear pair is formed, and power can be transmitted between the reverse shaft 3 and the input shaft.

The reverse shaft second gear 32 meshes with one of the gear driven gears. For example, as shown in Figs. 1, 2, and 5-8, the reverse shaft second gear 32 meshes with the sixth gear driven gear 6b. As shown in FIGS. 3 and 4, the reverse shaft second gear 32 meshes with the fifth speed driven gear 5b.

The reverse shaft third gear 33 meshes with the reverse output gear 39. The reverse output gear 39 can be fixed to one of the output shafts. As shown in FIGS. 1-8, the reverse output gear 39 is fixed to the second output shaft 22, so that the reverse output gear 39 can be arranged in a proper position, and the volume of the power drive system 100 can be further reduced.

A plurality of output shafts are linked to the differential power input gear 7 of the vehicle. Wherein, each output shaft is provided with an output gear, and the output gear is meshed with the differential power input gear 7. For example, as shown in FIGS. 1-8, the plurality of output shafts include: a first output shaft 21 and a second The output shaft 22 has a first output shaft output gear 211 fixedly disposed on the first output shaft 21, and a second output shaft output gear 221 fixedly disposed on the second output shaft 22, the first output shaft output gear 211 and the second output shaft The output gear 221 is meshed with the differential power input gear 7 of the vehicle, respectively. Thereby, the power transmitted from the engine 4 can be transmitted to the differential power input gear 7 through the first output shaft output gear 211 on the first output shaft 21, and the power transmitted from the engine 4 can also pass through the second output shaft output gear. 221 is transmitted to the differential power input gear 7, or the power transmitted from the engine 4 can also be transmitted to the differential power input gear 7 through the output gears of the two output shafts.

The specific arrangement of the first motor generator 51, the first electric power generation, will be described in detail below with reference to FIGS. The machine 51 is arranged to interlock with the reverse shaft 3. As shown in FIGS. 1-2 and 7-8, a first motor gear 34 is fixedly disposed on the reverse shaft, and the first motor generator 51 passes through the first transmission gear 511, the second transmission gear 512, and the first motor gear 34. The reverse shaft 3 is driven, and the reverse shaft 3 is driven by the reverse shaft third gear 33 and the reverse output gear 39. As shown in FIG. 3-6, the first motor gear 34 is fixedly disposed on the reverse shaft, and the first motor generator 51 is driven by the first transmission gear 511 and the first motor gear 34 on the reverse shaft, and the reverse shaft 3 is driven by the reverse gear shaft third gear 33 and the reverse gear output gear 39.

The arrangement of the second motor generator 52 will be described in detail below with reference to FIGS. 2, 4, 6, and 8, and as shown in FIG. 2, the second motor generator 52 is disposed in conjunction with the engine 4. When the second motor generator 52 is used as a motor, the second motor generator 52 can be used to start the engine 4, or the second motor generator 52 can be used to drive wheel rotation. When the second motor generator 52 is used as a generator, the engine 4 can drive the second motor generator 52 to generate electricity, and the energy transmitted from the vehicle can drive the second motor generator 52 to generate electricity through the output shaft.

As shown in FIG. 1, the power drive system 100 may further include: a dual clutch 2d having an input end 23d, a first output end 21d and a second output end 22d, the input end 23d being selectively engageable with the first output end At least one of 21d and the second output terminal 22d, the engine 4 is coupled to the input terminal 23d. The first output end 21d is connected to the first output shaft 21, and the second output end 22d is connected to the second output shaft 22. Wherein, the input end 23d is provided with an external tooth at the input end, and the second motor generator 52 is interlocked with the external tooth of the input end. Since the input end 23d is connected to the engine 4, the second motor generator 52 and the engine 4 can be interlocked by the input end 23d. The motor shaft of the second motor generator 52 may be fixedly provided with a transmission gear connected to the external teeth of the input end.

It should be understood that the specific engagement state of the dual clutch 2d 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 23d and the two can be The outputs are all disconnected and the input 23d is switched in a plurality of modes in which at least one of the two outputs is engaged.

As shown in FIG. 1-8, the second input shaft 12 is sleeved on the first input shaft 11, which can make the power drive system 100 compact, and can effectively reduce the axial length of the power drive system 100, which can The power drive system 100 is relatively small in size and can facilitate the placement of the power drive system 100 on the vehicle.

As shown in FIG. 1 to FIG. 6, a first driving shaft 1a, a three-five-speed driving gear 35a and a seven-speed driving gear 7a may be disposed on the first input shaft 11, and a second-speed driving gear 2a may be disposed on the second input shaft 12. And the four-six-speed drive gear 46a, each gear drive gear rotates synchronously with the corresponding input shaft.

Correspondingly, as shown in FIG. 1 to FIG. 6, the first output shaft 21 is provided with a driven gear 1b, a second driven gear 2b, a third driven gear 3b and a fourth driven gear 4b, and a second output. The shaft 22 is provided with a fifth-speed driven gear 5b, a sixth-speed driven gear 6b and a seventh-speed driven gear 7b, and each gear driven gear is sleeved on the corresponding output shaft, that is, each gear is driven. The gears are capable of differential rotation relative to the corresponding output shaft.

Wherein, the first gear driven gear 1b meshes with the first gear drive gear 1a to form a first gear gear pair, and the second gear driven gear 2b meshes with the second gear drive gear 2a to form a second gear pair, the third gear driven gear 3b meshes with the three-five drive gear 35a to form a third gear pair, and the fourth gear driven gear 4b meshes with the four-segment drive gear 46a. Thereby, a fourth gear pair is formed, and the fifth gear driven gear 5b meshes with the three-five gear drive gear 35a to constitute a five-gear gear pair, and the sixth-speed driven gear 6b meshes with the four-six-speed drive gear 46a to constitute a six-gear gear pair, seven The driven driven gear 7b meshes with the seven-speed drive gear 7a to constitute a seven-speed gear pair, and the first-speed drive gear 1a meshes with the reverse gear first gear 31 to constitute a reverse gear pair.

The four-gear gear pair and the sixth-gear gear pair share the four-six-speed drive gear 46a, and the third-gear gear pair and the fifth-gear gear pair share the three-five-gear drive gear 35a, so that the two-gear drive gear can be reduced, so that the power drive system 100 The structure is more compact and the axial dimension is smaller.

Since the driven gear and the output shaft have an empty sleeve structure, it is necessary to set a synchronizer to synchronize the corresponding driven gear with the output shaft to realize power output.

In some embodiments, as shown in conjunction with Figures 1-6, the power drive system 100 includes a three-speed synchronizer 13c, a second-four-speed synchronizer 24c, a five-seven-speed synchronizer 57c, and a six-speed synchronizer 6c.

As shown in FIG. 1, a three-speed synchronizer 13c is disposed on the first output shaft 21 between the first driven gear 1b and the third driven gear 3b, and a three-speed synchronizer 13c can move the first gear. The gear 1b or the third-speed driven gear 3b is engaged with the first output shaft 21 so that the driven gear and the output shaft can rotate in synchronization.

For example, as shown in FIG. 1, the shifting sleeve of the third-speed synchronizer 13c is moved to the left to engage the third-speed driven gear 3b with the first output shaft 21, so that the third-speed driven gear 3b and the first output shaft 21 can Rotate synchronously. The shifting sleeve of the third-speed synchronizer 13c is moved to the right to engage the first-speed driven gear 1b with the first output shaft 21, so that the first-pass driven gear 1b and the first output shaft 21 can rotate in synchronization.

As shown in FIG. 1, similarly, the second and fourth speed synchronizers 24c are disposed on the first output shaft 21 and between the second speed driven gear 2b and the fourth speed driven gear 4b, and the second and fourth speed synchronizers 24c can be two. The driven driven gear 2b or the fourth driven driven gear 4b is engaged with the first output shaft 21 so that the driven gear and the output shaft can rotate in synchronization.

For example, as shown in FIG. 1, the shifting sleeve of the second and fourth speed synchronizers 24c is moved to the left to engage the second speed driven gear 2b with the first output shaft 21, so that the second speed driven gear 2b is synchronized with the first output shaft 21. Turn. The shifting sleeve of the second and fourth speed synchronizers 24c is moved to the right to engage the fourth speed driven gear 4b with the first output shaft 21, so that the fourth speed driven gear 4b rotates in synchronization with the first output shaft 21.

As shown in Fig. 1, similarly, the five-seven-speed synchronizer 57c is disposed on the second output shaft 22, and the five-seven-speed synchronizer 57c is located between the fifth-speed driven gear 5b and the seventh-speed driven gear 7b. The synchronizer 57c is for engaging the fifth-speed driven gear 5b or the seven-speed driven gear 7b with the second output shaft 22, for example, the joint sleeve of the five-seven-speed synchronizer 57c is moved to the right, and the seven-speed driven gear 7b can be Engaged with the second output shaft 22 such that the seventh speed driven gear 7b rotates in synchronization with the second output shaft 22. For another example, when the engaging sleeve of the five-seven-speed synchronizer 57c is moved to the left, the fifth-speed driven gear 5b can be engaged with the second output shaft 22, so that the fifth-speed driven gear 5b and the second output shaft 22 rotate synchronously.

As shown in Fig. 1, similarly, a six-speed synchronizer 6c is disposed on the second output shaft 22, and a six-speed synchronizer 6c is located on one side of the sixth-speed driven gear 6b, for example, the left side, and a six-speed synchronizer 6c is used. When the sixth-speed driven gear 6b is engaged with the second output shaft 22, for example, the joint sleeve of the six-speed synchronizer 6c is moved to the right, the sixth-speed driven gear 6b can be engaged with the second output shaft 22, so that the sixth gear is driven. The gear 6b rotates in synchronization with the second output shaft 22.

In some embodiments, as shown in FIG. 1, the distance between the second-speed drive gear 2a, the four-segment drive gear 46a, the three-five-speed drive gear 35a, the first-gear drive gear 1a, and the stop drive gear 7a thereof and the engine 4 are increased. Thus, the gear arrangement is more rational, the power drive system 100 is more compact, and the radial and axial dimensions are relatively smaller.

As shown in FIGS. 1 and 2, the reverse gear first gear 31 is sleeved on the reverse shaft 3, and the reverse shaft 3 is provided with a reverse shaft first synchronizer for engaging the reverse gear first gear 31. 3c, wherein the six-speed synchronizer 6c is located on the left side of the sixth gear driven gear 6b, and the reverse gear shaft first synchronizer 3c is located on the right side of the reverse gear first gear 31, such that the reverse gear shaft first synchronizer 3c and six The synchronizer 6c can share the same shifting mechanism. When the shifting mechanism drives the reverse shaft first synchronizer 3c to engage the reverse gear first gear 31, the six-speed synchronizer 6c is separated from the sixth-speed driven gear 6b. When the fork mechanism drives the sixth speed synchronizer 6c to engage the sixth speed driven gear 6b, the reverse shaft first synchronizer 3c is separated from the reverse shaft first gear 31.

Specifically, when the fork mechanism drives the clutch sleeve to move to the left, the reverse shaft first synchronizer 3c engages the reverse shaft first gear 31 and the six-speed synchronizer 6c is separated from the sixth-speed driven gear 6b, when the shift mechanism When the clutch sleeve is moved to the right, the sixth speed synchronizer 6c engages the sixth speed driven gear 6b and the reverse shaft first synchronizer 3c is separated from the reverse shaft first gear 31. Thereby, the power drive system 100 can omit a fork mechanism, so that the power drive system 100 can be made simple in structure and light in weight.

As shown in FIG. 7-8, a first driving shaft 1a and a three-five-speed driving gear 35a may be disposed on the first input shaft 11, and a second-speed driving gear 2a and a four-six-speed driving gear may be disposed on the second input shaft 12. 46a, each gear drive gear rotates synchronously with the corresponding input shaft.

Correspondingly, as shown in FIG. 7-8, the first output shaft 21 is provided with a driven gear 1b, a second driven gear 2b, a third driven gear 3b and a fourth driven gear 4b, and a second output. The shaft 22 is provided with a fifth-speed driven gear 5b and a sixth-speed driven gear 6b, and each gear driven gear is sleeved on the corresponding output shaft, that is, each gear driven gear is opposite to the corresponding output shaft. It can rotate at a differential speed.

Wherein, the first driven gear 1b meshes with the first driving gear 1a to form a first gear pair, and the second driven gear 2b meshes with the second gear driving gear 2a to form a second gear pair, the third gear driven gear 3b and three The fifth gear drive gear 35a meshes to form a third gear pair, and the fourth gear driven gear 4b meshes with the four or six gear drive gears 46a to form a fourth gear pair, and the fifth gear driven gear 5b meshes with the third and fifth gear drive gears 35a to constitute The fifth gear pair, the sixth gear driven gear 6b meshes with the four sixth gear drive gear 46a to constitute a sixth gear pair, and the first gear drive gear 1a meshes with the reverse gear first gear 31 to constitute a reverse gear pair.

The four-gear gear pair and the sixth-gear gear pair share the four-six-speed drive gear 46a, the third gear pair and the fifth gear pair. The driving gear 35a is used in three to five gears, so that the two gear driving gears can be reduced, so that the structure of the power driving system 100 is more compact and the axial dimension is smaller.

In some embodiments, as shown in Figures 7-8, the power drive system 100 includes a three-speed synchronizer 13c, a second-four-speed synchronizer 24c, a five-speed synchronizer 5c, and a six-speed synchronizer 6c.

As shown in FIG. 7, a three-speed synchronizer 13c is disposed on the first output shaft 21 between the first driven gear 1b and the third driven gear 3b, and the third-speed synchronizer 13c can move the first gear. The gear 1b or the third-speed driven gear 3b is engaged with the first output shaft 21 so that the driven gear and the output shaft can rotate in synchronization.

For example, as shown in FIG. 7, the shifting sleeve of the third-speed synchronizer 13c is moved to the left to engage the third-speed driven gear 3b with the first output shaft 21, so that the third-speed driven gear 3b and the first output shaft 21 can Rotate synchronously. The shifting sleeve of the third-speed synchronizer 13c is moved to the right to engage the first-speed driven gear 1b with the first output shaft 21, so that the first-pass driven gear 1b and the first output shaft 21 can rotate in synchronization.

As shown in FIG. 7, similarly, the second and fourth speed synchronizers 24c are disposed on the first output shaft 21 and between the second speed driven gear 2b and the fourth speed driven gear 4b, and the second and fourth speed synchronizers 24c can be two. The driven driven gear 2b or the fourth driven driven gear 4b is engaged with the first output shaft 21 so that the driven gear and the output shaft can rotate in synchronization.

For example, as shown in FIG. 7, the shifting sleeve of the second and fourth speed synchronizers 24c is moved to the left to engage the second speed driven gear 2b with the first output shaft 21, so that the second speed driven gear 2b is synchronized with the first output shaft 21. Turn. The shifting sleeve of the second and fourth speed synchronizers 24c is moved to the right to engage the fourth speed driven gear 4b with the first output shaft 21, so that the fourth speed driven gear 4b rotates in synchronization with the first output shaft 21.

As shown in Fig. 7, similarly, the fifth speed synchronizer 5c is disposed on the second output shaft 22, and the fifth speed synchronizer 5c is located on one side (e.g., the right side) of the fifth speed driven gear 5b, and the fifth speed synchronizer 5c is used. The fifth-speed driven gear 5b is engaged with the second output shaft 22, and if the engaging sleeve of the five-speed synchronizer 5c is moved to the left, the fifth-speed driven gear 5b can be engaged with the second output shaft 22, thereby The driven driven gear 5b rotates in synchronization with the second output shaft 22.

As shown in Fig. 7, similarly, the six-speed synchronizer 6c is disposed on the second output shaft 22, and the six-speed synchronizer 6c is located on one side of the sixth-speed driven gear 6b, for example, the left side, and the six-speed synchronizer 6c is used. When the sixth-speed driven gear 6b is engaged with the second output shaft 22, for example, the joint sleeve of the six-speed synchronizer 6c is moved to the right, the sixth-speed driven gear 6b can be engaged with the second output shaft 22, so that the sixth gear is driven. The gear 6b rotates in synchronization with the second output shaft 22.

In some embodiments, as shown in FIG. 7, the distance between the second gear drive gear 2a, the four sixth gear drive gear 46a, the three fifth gear drive gear 35a, the first gear drive gear 1a and the engine 4 is increased. Thus, the gear arrangement is more rational, the power drive system 100 is more compact, and the radial and axial dimensions are relatively smaller.

The reverse gear shaft first gear 31 is sleeved on the reverse shaft 3, and the reverse shaft 3 is provided with a first tooth for engaging the reverse shaft The reverse shaft first synchronizer 3c of the wheel 31, wherein the fifth speed synchronizer 5c is located on the right side of the fifth speed driven gear 5b, and the reverse shaft first synchronizer 3c is located on the left side of the reverse gear first gear 31, such that The reverse shaft first synchronizer 3c and the fifth speed synchronizer 5c can share the same fork mechanism. When the shift mechanism drives the reverse shaft first synchronizer 3c to engage the reverse shaft first gear 31, the fifth speed synchronizer 5c and The fifth-speed driven gear 5b is disengaged, and when the shift mechanism drives the fifth-speed synchronizer 5c to engage the fifth-speed driven gear 5b, the reverse-shaft first synchronizer 3c is separated from the reverse-shaft first gear 31. Specifically, when the fork mechanism drives the clutch sleeve to move to the right, the reverse shaft first synchronizer 3c engages the reverse shaft first gear 31 and the five-speed synchronizer 5c is separated from the fifth-speed driven gear 5b, when the shift mechanism When the clutch sleeve is moved to the left, the fifth speed synchronizer 5c engages the fifth speed driven gear 5b and the reverse shaft first synchronizer 3c is separated from the reverse shaft first gear 31. Thereby, the power drive system 100 can omit a fork mechanism, so that the power drive system 100 can be made simple in structure and light in weight.

The mode of operation of the power drive system 100 according to an embodiment of the present disclosure will be described in detail below with the power drive system 100 shown in FIG.

The parking power generation mode 1: the input end 23d of the dual clutch 2d is engaged with the first output end 21d, and the power of the engine 4 sequentially passes through the dual clutch 2d, the first input shaft 11, the first gear drive gear 1a, the reverse gear first gear 31, The reverse shaft first synchronizer 3c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as power generation. Machine use.

The parking power generation mode 2: the input end 23d of the dual clutch 2d engages the second output end 22d, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the power of the engine 4 sequentially passes through the double clutch 2d, second input shaft 12, four-six-speed drive gear 46a, six-speed driven gear 6b, reverse shaft second gear 32, reverse shaft second synchronizer 32c, reverse shaft 3, first motor gear 34, The second transmission gear 512 and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator.

Driving power generation mode 1: The input end 23d of the dual clutch 2d is engaged with the first output end 21d, and a part of the power of the engine 4 passes through the dual clutch 2d, the first input shaft 11, the first gear drive gear 1a, the reverse gear first gear 31, The reverse shaft first synchronizer 3c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as power generation. The machine is used; another part of the power of the engine 4 can be transmitted to the differential power input gear 7 through the transmission. The following is a detailed description of the first gear. The input end 23d of the dual clutch 2d is connected to the first output end 21d, and the third gear is synchronized. The 13c engages the first driven gear 1b and the first output shaft 21, and the other part of the engine 4 passes through the first gear drive gear 1a, the first driven gear 1b, the third gear synchronizer 13c, the first output shaft 21, The first output shaft output gear 211 and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Driving power generation mode 2: the input end 23d of the dual clutch 2d engages the second output end 22d, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the power of the engine 4 sequentially passes through the double clutch 2d Second input shaft 12, four-six-speed drive gear 46a, six-speed driven gear 6b, reverse shaft second gear 32, reverse shaft second synchronizer 32c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator. Another part of the power of the engine 4 can be transmitted to the differential power input gear 7 through the transmission. The following is a detailed description of the first gear. The input end 23d of the dual clutch 2d is connected to the first output end 21d, and the third-speed synchronizer 13c is engaged. The first driven gear 1b and the first output shaft 21, the other part of the engine 4 is sequentially passed through the first gear drive gear 1a, the first gear driven gear 1b, the third gear synchronizer 13c, the first output shaft 21, and the first output. A shaft output gear 211 and a differential power input gear 7 are transmitted to the wheels to drive vehicle motion. The other gear transfer process is similar to the first gear and will not be described in detail here.

Driving power generation mode 3: a part of the engine 4 is transmitted to the second output shaft 22, and the reverse shaft third synchronizer synchronizes the reverse gear shaft third gear 33 and the reverse shaft 3, so that the part of the power is passed through the reverse gear output gear 39 and The reverse gear shaft third gear 33 is transmitted to the reverse shaft 3, and since the first motor generator 51 and the reverse shaft 3 are interlocked, the first motor generator 51 is used as a generator.

Pure electric mode 1: The first motor generator 51 is used as a motor, the reverse synchronizer engages the reverse output gear 39 and the second output shaft 22, and the power of the first motor generator 51 sequentially passes through the first transmission gear 511 and the second Transmission gear 512, first motor gear 34, reverse shaft 3, reverse shaft third gear 33, reverse output gear 39, reverse synchronizer, second output shaft 22, second output shaft output gear 221, and differential The power input gear 7 is transmitted to the wheels to drive the vehicle to move.

Pure electric mode 2: the first motor generator 51 is used as a motor, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the sixth speed synchronizer 6c engages the sixth gear driven gear 6b and The second output shaft 22, the power of the first motor generator 51 sequentially passes through the first transmission gear 511, the second transmission gear 512, the first motor gear 34, the reverse shaft 3, the reverse shaft second synchronizer 32c, and the reverse gear The shaft second gear 32, the sixth gear driven gear 6b, the sixth gear synchronizer 6c, the second output shaft 22, the second output shaft output gear 221, and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move.

Energy recovery mode 1: The energy transmitted from the wheel passes through the differential power input gear 7, the second output shaft output gear 221, the second output shaft 22, the reverse synchronizer, the reverse output gear 39, and the reverse shaft second. The gear 32, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator.

Energy recovery mode 2: The energy transmitted from the wheel passes through the differential power input gear 7, the second output shaft output gear 221, the second output shaft 22, the six-speed synchronizer 6c, the sixth-speed driven gear 6b, and the reverse shaft. The second gear 32, the reverse shaft second synchronizer 32c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, the first motor generator 51 is used as a generator.

Compared to the power drive system 100 shown in FIG. 1, the power drive system 100 shown in FIG. 2 further includes a second motor generator 52 that is coupled to the engine 4.

The parking power generation mode 1: the input end 23d of the dual clutch 2d is disconnected from the first output end 21d and the second output end 22d, respectively, and the power of the engine 4 is all used for power generation by the second motor generator 52.

The parking power generation mode 2: the input end 23d of the dual clutch 2d is engaged with the first output end 21d, a part of the power of the engine 4 is used for power generation by the second motor generator 52, and another part of the power of the engine 4 is sequentially passed through the double clutch 2d, first The input shaft 11, the first speed driving gear 1a, the reverse shaft first gear 31, the reverse shaft first synchronizer 3c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted. The first motor generator 51 is supplied, and the first motor generator 51 is used as a generator at this time.

The parking power generation mode 3: the input end 23d of the dual clutch 2d engages the second output end 22d, and the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and a part of the power of the engine 4 is used for The second motor generator 52 generates electricity, and another part of the power of the engine 4 passes through the dual clutch 2d, the second input shaft 12, the four-six-speed driving gear 46a, the sixth-speed driven gear 6b, the reverse gear second gear 32, and the reverse gear. The shaft second synchronizer 32c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, and the first motor generator 51 is used as a generator at this time. .

Driving power generation mode 1: Part of the power of the engine 4 is used for power generation by the second motor generator 52, and another part of the power of the engine 4 can be transmitted to the differential power input gear 7 by the transmission. The following is a detailed description of the first gear, the double clutch The input end 23d of 2d is connected to the first output end 21d, the third-speed synchronizer 13c engages the first driven gear 1b and the first output shaft 21, and the other part of the engine 4 passes through the first-speed driving gear 1a and the first gear. The moving gear 1b, the third-speed synchronizer 13c, the first output shaft 21, the first output shaft output gear 211, and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Driving power generation mode 2: the input end 23d of the dual clutch 2d is engaged with the first output end 21d, and a part of the power of the engine 4 passes through the dual clutch 2d, the first input shaft 11, the first gear drive gear 1a, the reverse gear first gear 31, The reverse shaft first synchronizer 3c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as power generation. The machine is used; another part of the power of the engine 4 can be used for power generation by the second motor generator 52, and a further part of the power of the engine 4 can be transmitted to the differential power input gear 7 through the transmission, and the following is a detailed description of the first gear, The input end 23d of the clutch 2d is connected to the first output end 21d, the third-speed synchronizer 13c engages the first driven gear 1b and the first output shaft 21, and the other part of the engine 4 passes through the first-speed driving gear 1a and the first gear. The driven gear 1b, the third-speed synchronizer 13c, the first output shaft 21, the first output shaft output gear 211, and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Driving power generation mode 3: the input end 23d of the dual clutch 2d engages the second output end 22d, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the power of the engine 4 sequentially passes through the dual clutch 2d Second input shaft 12, four-six-speed drive gear 46a, six-speed driven gear 6b, reverse shaft second gear 32, reverse shaft second synchronizer 32c, the reverse shaft 3, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator. Another part of the power of the engine 4 can be used for power generation by the second motor generator 52. A further part of the power of the engine 4 can be transmitted to the differential power input gear 7 through the transmission. The following is a detailed description of the first gear, the dual clutch 2d The input end 23d is connected to the first output end 21d, the third-speed synchronizer 13c engages the first-speed driven gear 1b and the first output shaft 21, and the other part of the engine 4 passes through the first-speed drive gear 1a and the first-speed driven gear. 1b, a third-speed synchronizer 13c, a first output shaft 21, a first output shaft output gear 211, and a differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Pure electric mode three: the first motor generator 51 and the second motor generator 52 are simultaneously used as electric motors, and the powers of the first motor generator 51 and the second motor generator 52 can be coupled at the differential power input gear 7, For the transmission process of the first motor generator 51, which is not described, reference may be made to the above-described pure electric modes one and two. The power of the second motor generator 52 needs to be transmitted to the differential power input gear 7 through the transmission, with one gear below. As an example, the input end 23d of the dual clutch 2d is connected to the first output end 21d, and the third-speed synchronizer 13c engages the first driven gear 1b and the first output shaft 21, and the power of the second motor generator 52 passes through The first-speed drive gear 1a, the first-speed driven gear 1b, the third-speed synchronizer 13c, the first output shaft 21, the first output shaft output gear 211, and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Energy recovery mode 2: The energy transmitted from the wheel passes through the differential power input gear 7 and the second output shaft. The output gear 221, the second output shaft 22, the sixth speed synchronizer 6c, the sixth speed driven gear 6b, the reverse shaft second gear 32, the reverse shaft second synchronizer 32c, the reverse shaft 3, and the first motor gear 34 The second transmission gear 512 and the first transmission gear 511 are transmitted to the first motor generator 51, and the first motor generator 51 is used as a generator.

The working mode of the power driving system 100 shown in FIG. 3 and FIG. 5 is substantially the same as that of the power driving system 100 shown in FIG. 1 and will not be described in detail herein. The power driving system 100 shown in FIG. 4 and FIG. The working mode is substantially the same as the power driving system 100 shown in FIG. 2 and will not be described in detail herein.

The operation mode of the power drive system 100 according to an embodiment of the present disclosure will be described in detail below with the power drive system 100 shown in FIG.

Driving power generation mode 2: the input end 23d of the dual clutch 2d engages the second output end 22d, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the power of the engine 4 sequentially passes through the double clutch 2d a second input shaft 12, a four-six-speed drive gear 46a, a sixth-speed driven gear 6b, a reverse-shaft second gear 32, a reverse shaft second synchronizer 32c, a reverse shaft 3, a first motor gear 34, and a The second transmission gear 512 and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator. Another part of the power of the engine 4 can be transmitted to the differential power input gear 7 through the transmission. The following is a detailed description of the first gear, and the input end 23d of the dual clutch 2d. Connected to the first output end 21d, a three-speed synchronizer 13c engages the first driven gear 1b and the first output shaft 21, and another part of the power of the engine 4 sequentially passes through the first gear drive gear 1a, the first gear driven gear 1b, and one. The third speed synchronizer 13c, the first output shaft 21, the first output shaft output gear 211, and the differential power input gear 7 are transmitted to the wheels to drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

Compared to the power drive system 100 shown in FIG. 7, the power drive system 100 shown in FIG. 8 further includes a second motor generator 52 that is coupled to the engine 4.

Park power generation mode 2: the input end 23d of the dual clutch 2d engages the first output end 21d, part of the engine 4 The power is used for power generation by the second motor generator 52, and another part of the power of the engine 4 passes through the dual clutch 2d, the first input shaft 11, the first gear drive gear 1a, the reverse gear first gear 31, and the reverse gear first synchronization. The reverser shaft 3c, the first motor gear 34, the second transmission gear 512, and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator.

Driving power generation mode 3: the input end 23d of the dual clutch 2d engages the second output end 22d, the reverse shaft second synchronizer 32c engages the reverse shaft 3 and the reverse shaft second gear 32, and the power of the engine 4 sequentially passes through the dual clutch 2d a second input shaft 12, a four-six-speed drive gear 46a, a sixth-speed driven gear 6b, a reverse-shaft second gear 32, a reverse shaft second synchronizer 32c, a reverse shaft 3, a first motor gear 34, and a The second transmission gear 512 and the first transmission gear 511 are transmitted to the first motor generator 51, at which time the first motor generator 51 is used as a generator. Another portion of the power of the engine 4 can be used to generate electricity for the second motor generator 52, and a portion of the power of the engine 4 can be transmitted to the differential power through the transmission. Into the gear 7, the following is a detailed description of the first gear, the input end 23d of the dual clutch 2d is connected with the first output end 21d, a three-speed synchronizer 13c engages the first driven gear 1b and the first output shaft 21, the engine 4 The other part of the power is transmitted to the wheel through the first gear drive gear 1a, the first gear driven gear 1b, the third gear synchronizer 13c, the first output shaft 21, the first output shaft output gear 211 and the differential power input gear 7. To drive the vehicle to move. The other gear transfer process is similar to the first gear and will not be described in detail here.

According to the power drive system 100 of the embodiment of the present disclosure, parking power generation can be realized, so that the operation mode of the power drive system 100 can be enriched, and the power and economy of the vehicle can be improved.

The first motor generator 51 is interlocked with the reverse shaft 3, so that the first motor generator 51 has high transmission efficiency, and the conventional power drive system 100 can avoid the complicated shifting and transmission chain in the transmission. The problem of the pure electric mode can be realized, so that the pure electric mode transmission requires fewer components, the transmission process is reliable, and the transmission efficiency is high.

In addition, in the control logic, the control logic of the engine 4 and the control logic of the first motor generator 51 are independent of each other, so that the development time and cost of the manufacturer can be saved, and the high failure rate of the power drive system 100 can be avoided.

Further, a vehicle including the power drive system 100 as described above is further provided in accordance with an embodiment of the present disclosure. It should be understood that other configurations of vehicles in accordance with embodiments of the present disclosure, such as travel systems, steering systems, braking systems, etc., are well known in the art and are well known to those of ordinary skill in the art, thus details of known structures The description is omitted here.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material, or feature is included in at least one embodiment or example of the present disclosure. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

While the embodiments of the present disclosure have been shown and described above, it is understood that the foregoing embodiments are illustrative and are not to be construed as limiting the scope of the disclosure The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A power drive system for a vehicle, characterized in that the power drive system comprises:

engine;

a plurality of input shafts, the engine being configured to selectively engage at least one of the plurality of input shafts, each of the input shafts being provided with a gear shifting gear;

a plurality of output shafts, each of which is provided with a gear driven gear, and a plurality of the gear driven gears are correspondingly engaged with the plurality of gear driving gears;

a reverse shaft, the reverse shaft is provided with a reverse shaft first gear, a reverse shaft second gear and a reverse shaft third gear, and the reverse gear first gear meshes with one of the gear driving gears The reverse gear second gear meshes with one of the gear driven gears, and each of the reverse gear first gear, the reverse gear second gear, and the reverse shaft third gear Arranged to engage the reverse shaft;

a reverse gear output gear, the reverse gear output gear is interlocked with the reverse gear third gear, and the reverse gear output gear is fixedly disposed on one of the output shafts;

a first motor generator, the first motor generator being disposed in linkage with the reverse shaft.
The power drive system for a vehicle according to claim 1, further comprising:

A reverse shaft first synchronizer for engaging the reverse shaft and the reverse shaft first gear.
A power drive system for a vehicle according to claim 1, further comprising: a reverse shaft second synchronizer, said reverse shaft second synchronizer for engaging said reverse shaft with said reverse The second gear of the shaft.
A power drive system for a vehicle according to claim 3, further comprising: a reverse shaft third synchronizer, said reverse shaft third synchronizer for engaging said reverse shaft with said inverted The third gear of the shaft.
A power drive system for a vehicle according to claim 4, wherein said reverse shaft second synchronizer and said reverse shaft third synchronizer are the same synchronizer.
The power drive system for a vehicle according to claim 1, wherein a first motor gear is fixedly disposed on the reverse shaft, and the first motor gear is interlocked with the first motor generator.
The power drive system for a vehicle according to claim 1, further comprising:

a dual clutch having an input end, a first output end, and a second output end, the input end selectively engaging at least one of the first output end and the second output end, the engine and The inputs are connected.
A power drive system for a vehicle according to claim 7, wherein

The plurality of input shafts include: a first input shaft and a second input shaft sleeved on the first input shaft, the first input shaft being coupled to the first output end, the second input shaft Connected to the second output;

The plurality of output shafts include a first output shaft and a second output shaft.
The power drive system for a vehicle according to claim 8, wherein the first input shaft is fixedly provided with a first drive gear, a three-five-speed drive gear and a seven-speed drive gear, and the second The input shaft is fixedly provided with a second gear driving gear and a four-six-speed driving gear;

The first output shaft is provided with a driven gear, a second driven gear, a third driven gear and a fourth driven gear; the second output shaft is provided with a five-speed driven gear, six Blocking driven gear and seven-speed driven gear;

a first gear shaft is disposed on a third gear synchronizer between the first gear driven gear and the third gear driven gear, and the first output shaft is further disposed on the second gear a second-fourth synchronizer between the moving gear and the fourth-speed driven gear, and the second output shaft is provided with five or seven gears between the fifth-speed driven gear and the seventh-speed driven gear The synchronizer is further provided with a six-speed synchronizer on a side of the sixth-speed driven gear on the second output shaft.
A power drive system for a vehicle according to claim 9, wherein said reverse shaft first gear meshes with said first speed drive gear, said reverse gear shaft second gear and said fifth gear The moving gear or the sixth gear driven gear meshes.
A power drive system for a vehicle according to claim 9, further comprising: a reverse shaft first synchronizer, said reverse shaft first synchronizer being disposed on said reverse shaft and for Engaging the first gear of the reverse shaft;

Wherein the reverse shaft first synchronizer and the sixth speed synchronizer share the same fork mechanism, when the fork mechanism drives the reverse shaft first synchronizer to engage the first gear of the reverse shaft, The six-speed synchronizer is separated from the six-speed driven gear, and the reverse shaft first synchronizer and the reverse gear are engaged when the fork mechanism drives the six-speed synchronizer to engage the six-speed driven gear The first gear of the reverse shaft is separated.
The power drive system for a vehicle according to claim 8, wherein the first output shaft is fixedly provided with a first output shaft output gear, and the second output shaft is fixedly provided with a second output shaft. An output gear, the first output shaft output gear and the second output shaft output gear meshing with a differential power input gear of the vehicle, respectively.
A vehicle characterized by comprising the power drive system according to any one of claims 1-12.