Drive device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10723214-B2
Application number	US-201815909184-A
Country	US
Kind code	B2
Filing date	Mar 1, 2018
Priority date	Mar 1, 2017
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

A drive device for a motor vehicle, having a first drive assembly, a second drive assembly that can be coupled to the first drive assembly with a fixed transmission ratio by an intermediate clutch, as well as a driven shaft that can be coupled to the first drive assembly and to the second drive assembly. Here, the first drive assembly is directly coupled or can be coupled to a third drive assembly, and that the driven shaft can be coupled to the second drive assembly, on the one hand, by way of a first shift clutch and a first transmission stage, and, on the other hand, by way of a second shift clutch, which is coupled to the second drive assembly parallel to the first shift clutch, and a second transmission stage.

First claim

The invention claimed is:

1. A drive device for a motor vehicle, comprising:
a first drive assembly, a second drive assembly that can be coupled to the first drive assembly with a fixed transmission ratio by an intermediate clutch, as well as a driven shaft that can be coupled to the first drive assembly and to the second drive assembly, wherein the first drive assembly is directly coupled or can be coupled to a third drive assembly, and the driven shaft can be coupled to the second drive assembly, on the one hand, by way of a first shift clutch and a first transmission stage, and, on the other hand, by way of a second shift clutch, which is coupled to the second drive assembly parallel to the first shift clutch, and a second transmission stage so that a dual clutch transmission is realized between the second drive assembly and the driven shaft,
wherein input sides of the first shift clutch and the second shift clutch are coupled to the second drive assembly, and output sides of the first shift clutch and the second shift clutch are coupled to the driven shaft,
wherein the output side of the first shift clutch is coupled to the driven shaft via the first transmission stage, and the output side of the second shift clutch is coupled to the driven shaft via the second transmission stage,
wherein the second drive assembly axially overlaps the first and second shift clutches as well as the first and second transmission stages when viewed longitudinally,
wherein that the first drive assembly and the intermediate clutch or the intermediate clutch and the second drive assembly are joined together via a vibration absorber, and
wherein the intermediate clutch is arranged in the radial direction to an axis of rotation of the vibration absorber, and the intermediate clutch is arranged on the inside of the vibration absorber so that the intermediate clutch and the vibration absorber are arranged in an overlapping way when viewed in the axial direction.

2. The drive device according to claim 1 , wherein the second drive assembly is coupled to a common transmission input shaft of the first transmission stage and the second transmission stage by way of a gear transmission stage.

3. The drive device according to claim 1 , wherein the driven shaft is coupled to a common transmission output shaft of the first transmission stage and the second transmission stage.

4. The drive device according to claim 3 , wherein that the driven shaft is coupled to the common transmission output shaft by way of another gear transmission stage.

5. The drive device according to claim 1 , wherein the second drive assembly has a rated power of the same order of magnitude as the first drive assembly.

6. The drive device according to claim 1 , wherein the third drive assembly has a lower rated power than the second drive assembly.

7. The drive device according to claim 1 , wherein the first drive assembly is configured as an internal combustion engine and/or the second drive assembly and/or the third drive assembly is/are configured as an electric machine or machines.

8. The drive device according to claim 1 , wherein the first drive assembly and/or the second drive assembly and/or the third drive assembly are arranged axis-parallel to one another.

Assignees

• Audi Ag

Inventors

• Auerbach Michael
• Brunner Johannes
• Weinzierl Stefan

Classifications

• Y02T10/62

  Hybrid vehicles · CPC title

• B60K6/547

  the transmission being a stepped gearing · CPC title

• B60K6/442

  Series-parallel switching type · CPC title

• B60K6/40

  characterised by the assembly or relative disposition of components · CPC title

• B60K6/387

  Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title