驱动系统及车辆

Abstract

本申请公开了一种驱动系统及车辆，属于车辆领域。所述驱动系统包括：第一动力组件、输出轴、第一变速器、第一电机和第二变速器。第一变速器的输入端与所述第一动力组件的输出端动力耦合连接，各级输出端可选择地与所述输出轴动力耦合连接；第二变速器的输入端与所述第一电机的输出端动力耦合连接，各级输出端可选择地与所述输出轴动力耦合连接。本申请的第一动力组件和第一电机在传动路径上为两个独立的驱动单元，第一动力组件可以通过对应的第一变速器输出，第一电机可以通过对应的第二变速器输出，其中一个驱动单元换挡时，另一个驱动单元可以输出峰值扭矩和功率来弥补换挡单元的动力缺失，从而实现换挡动力不中断。

Claims

1. A drive system, characterized in that, Applied to vehicles, the drive system includes: The first power assembly includes an engine, a second motor, a third motor, and a planetary gear mechanism. The engine, the second motor, the third motor, and three rotating elements in the planetary gear mechanism are connected in a one-to-one correspondence, and one of the three rotating elements in the planetary gear mechanism is configured as the output end of the first power assembly. Output shaft; The first transmission has its input end electrically coupled to the output end of the first power assembly, and each stage of the output end can be selectively electrically coupled to the output shaft. First motor; The second gearbox has its input end electrically coupled to the output end of the first motor, and each stage of the output end can be selectively electrically coupled to the output shaft.

2. The drive system of claim 1, wherein, The engine is dynamically coupled to the planet carrier of the planetary gear mechanism, the second motor is dynamically coupled to the sun gear of the planetary gear mechanism, and the third motor is dynamically coupled to the external gear ring of the planetary gear mechanism.

3. The drive system according to claim 1, characterized in that, The first transmission includes: The first input shaft is configured as the input end of the first transmission. The first intermediate shaft is dynamically coupled to the first input shaft; A first clutch assembly is used to engage the output shaft with the first input shaft or to engage the output shaft with the first intermediate shaft; The second transmission includes: The second input shaft is configured as the input end of the second transmission; The second intermediate shaft is dynamically coupled to the second input shaft; The second clutch assembly is used to engage the output shaft with the second input shaft or to engage the output shaft with the second intermediate shaft.

4. The drive system of claim 3, wherein, The drive system has a shutdown mode in which the engine is stopped, the first motor to the third motor are in a free mode, and the first clutch group and the second clutch group are both in a disengaged state. And / or, The drive system has a parking power generation mode. In the parking power generation mode, the engine operates, the second motor and the third motor generate electricity, and the first clutch group and the second clutch group are both in a disengaged state. And / or, The drive system has a pure electric mode, in which the engine is off, the first motor is in free mode, and the second and third motors are in torque mode. The first clutch group is used to engage the output shaft with the first input shaft or with the first intermediate shaft, and the second clutch group is used to engage the output shaft with the second input shaft or with the second intermediate shaft; and / or, The drive system has a hybrid mode in which the engine operates, the second and third motors are in torque mode, the first motor is in speed mode, the first clutch group is used to engage the output shaft with the first input shaft or the output shaft with the first intermediate shaft, and the second clutch group is used to engage the output shaft with the second input shaft or the output shaft with the second intermediate shaft; and / or, The drive system has an engine direct drive mode, in which the engine is working, the third motor is in a free mode, the first clutch group is used to engage the output shaft with the first input shaft, and the second clutch group is in a disengaged state.

5. The drive system of claim 3, wherein, The first clutch group includes the first to third clutches, and the second clutch group includes the fourth to sixth clutches; The first transmission includes a first input gear at the input end and first to fourth output gears at the output end. The first input gear at the input end is disposed at the input end of the first transmission and meshes with a first intermediate shaft input gear on the first intermediate shaft. The first to fourth output gears at the output end mesh with the first to fourth output gears on the first intermediate shaft in a corresponding manner. The first to fourth output gears at the output end are loosely fitted on the output shaft. The first clutch is used to engage the output shaft with the first input gear at the input end or to engage the output shaft with the first output gear at the output end; The second clutch is used to engage the output shaft with the second output gear at the output end or to engage the output shaft with the third output gear at the output end; The third clutch is used to engage the output shaft with the fourth output gear at the output end; The second transmission includes a second input gear at the input end and fifth to eighth output gears at the output end. The second input gear at the input end is disposed on the second input shaft and meshes with a second intermediate shaft input gear on the second intermediate shaft. The fifth to eighth output gears at the output end mesh with the fifth to eighth output gears on the second intermediate shaft in a corresponding manner. The second input gear at the input end and the fifth to eighth output gears at the output end are loosely fitted on the output shaft. A fourth clutch is used to engage the output shaft with the second input gear at the input end or to engage the output shaft with the fifth output gear at the output end. The fifth clutch is used to engage the output shaft with the sixth output gear at the output end or the output shaft with the seventh output gear at the output end; the sixth clutch is used to engage the output shaft with the eighth output gear at the output end.

6. The drive system of claim 3, wherein, The first clutch assembly includes a first clutch and a second clutch, and the second clutch assembly includes a fourth clutch and a fifth clutch; The first transmission includes a first input gear at the input end and first to third output gears at the output end. The first input gear at the input end is disposed at the input end of the first transmission and is poweredly engaged with the first intermediate shaft input gear on the first intermediate shaft. The first to third output gears at the output end are engaged with the first to third intermediate shaft input gears on the first intermediate shaft in a one-to-one correspondence. The first to third output gears at the output end are loosely fitted on the output shaft. The first clutch is used to engage the output shaft with the first input gear at the input end or to engage the output shaft with the first output gear at the output end; the second clutch is used to engage the output shaft with the second output gear at the output end or to engage the output shaft with the third output gear at the output end. The second transmission includes a second input gear at the input end and fifth to seventh output gears at the output end. The second input gear at the input end is disposed on the second input shaft and meshes with a first input gear on the second intermediate shaft. The fifth to seventh output gears at the output end mesh with the fifth to seventh output gears on the second intermediate shaft in a one-to-one correspondence. The second input gear at the input end and the fifth to seventh output gears at the output end are loosely fitted on the output shaft. A fourth clutch is used to engage the output shaft with the second input gear at the input end or with the fifth output gear at the output end. A fifth clutch is used to engage the output shaft with the sixth output gear at the output end or with the seventh output gear at the output end.

7. The drive system of claim 3, wherein, The first clutch assembly includes a first clutch and a second clutch, and the second clutch assembly includes a fourth clutch and a fifth clutch; The first transmission includes an input first input gear, an output first output gear, and an output second output gear. The input first input gear is disposed at the input end of the first transmission and is poweredly engaged with the first intermediate shaft input gear on the first intermediate shaft. The output first output gear is engaged with the first intermediate shaft first output gear, and the output second output gear is engaged with the first intermediate shaft second output gear. Both the output first output gear and the output second output gear are loosely fitted onto the output shaft. The first clutch is used to engage the output shaft with the first input gear at the input end or to engage the output shaft with the first output gear at the output end; the second clutch is used to engage the output shaft with the second output gear at the output end. The second transmission includes a second input gear, a fifth output gear, and a sixth output gear. The second input gear is mounted on the second input shaft and meshes with a first input gear on the second intermediate shaft. The fifth output gear meshes with the fifth output gear on the second intermediate shaft. The sixth output gear meshes with the sixth output gear on the second intermediate shaft. The second input gear, the fifth output gear, and the sixth output gear are all loosely fitted onto the output shaft. The fourth clutch is used to engage the output shaft with the second input gear or with the fifth output gear. The fifth clutch is used to engage the output shaft with the sixth output gear.

8. The drive system of claim 3, wherein, The first clutch assembly includes a first clutch, and the second clutch assembly includes a fourth clutch; The first transmission includes an input first input gear and an output first output gear. The input first input gear is disposed at the input end of the first transmission and meshes with a first intermediate shaft input gear on the first intermediate shaft. The output first output gear meshes with a first intermediate shaft first output gear on the first intermediate shaft. The output first output gear is loosely fitted onto the output shaft. The first transmission is used to connect the output shaft to the input first input gear or to connect the output shaft to the output first output gear. The second transmission includes a second input gear at the input end and a fifth output gear at the output end. The second input gear at the input end is disposed on the second input shaft and meshes with a second intermediate shaft input gear on the second intermediate shaft. The fifth output gear at the output end meshes with a second intermediate shaft fifth output gear on the second intermediate shaft. The second input gear at the input end and the fifth output gear at the output end are loosely fitted onto the output shaft. The fourth clutch is used to engage the output shaft with the second input gear at the input end or to engage the output shaft with the fifth output gear at the output end.

9. The drive system of any one of claims 1-8, wherein, The first transmission and the second transmission have the same number of gears, and the reduction ratio of each gear is the same.

10. A vehicle characterized by comprising: The drive system included in any one of claims 1-9.

Images