Dual-clutch transmission arrangement, and motor vehicle

Patent metadata

Field	Value
Publication number	US-11274732-B2
Application number	US-201816493418-A
Country	US
Kind code	B2
Filing date	Feb 13, 2018
Priority date	Mar 13, 2017
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A dual clutch transmission arrangement (4) includes a first clutch (K1) and a second clutch (K2) for connecting a drive unit (2) to a first sub-transmission and to a second sub-transmission. The first clutch (K1) is connected to both transmission input shafts. A motor vehicle with the dual clutch transmission arrangement (4) is also provided.

First claim

The invention claimed is:

1. A dual clutch transmission arrangement ( 4 ), comprising:
a first clutch (K 1 ) configured to selectively connect a drive unit ( 2 ) to a first sub-transmission; and
a second clutch (K 2 ) configured to selectively connect the drive unit ( 2 ) to a second sub-transmission,
wherein the first clutch (K 1 ) is connected to a transmission input shaft of the first sub-transmission and to a transmission input shaft of the second sub-transmission, and
wherein the first clutch (K 1 ) is a first multi-disk clutch, and the second clutch (K 2 ) is a second multi-disk clutch.

2. The dual clutch transmission arrangement of claim 1 , wherein the second clutch (K 2 ) is arranged within a part ( 8 ) of a transmission housing ( 6 ) that accommodates a gear set ( 42 ).

3. The dual clutch transmission arrangement of claim 2 , wherein the second clutch (K 2 ) is arranged between two gear set planes ( 38 , 40 ).

4. The dual clutch transmission arrangement of claim 3 , wherein the second clutch (K 2 ) is arranged between two gear sets of odd gears.

5. The dual clutch transmission arrangement of claim 3 , wherein the second clutch (K 2 ) is arranged between two gear sets of even gears.

6. The dual clutch transmission arrangement of claim 3 , wherein the second clutch (K 2 ) is arranged between two gear sets of even gears and odd gears.

7. The dual clutch transmission arrangement of claim 2 , wherein the second clutch (K 2 ) is arranged proximate a transmission-end side of the transmission housing ( 6 ) and downstream from two gear set planes ( 38 , 40 ).

8. The dual clutch transmission arrangement of claim 1 , wherein the second clutch (K 2 ) encloses a shaft ( 22 , 24 , 30 , 44 ).

9. The dual clutch transmission arrangement of claim 1 , wherein the first clutch (K 1 ) is a launch clutch.

10. The dual clutch transmission arrangement of claim 1 , wherein the transmission input shafts ( 22 , 24 ) are coaxially arranged, and the first clutch (K 1 ) is connected on an input side to an inner one of transmission input shafts.

11. The dual clutch transmission arrangement of claim 1 , wherein the transmission input shafts ( 22 , 24 ) are coaxially arranged, and the first clutch (K 1 ) is connected on an output side to an outer one of the transmission input shafts.

12. The dual clutch transmission arrangement of claim 1 , wherein the second clutch (K 2 ) is connected on an input side to the transmission input shaft ( 24 ) of the second sub-transmission.

13. The dual clutch transmission arrangement of claim 1 , further comprising a second drive unit ( 3 ), the second drive unit ( 3 ) comprising an electric motor.

14. The dual clutch transmission arrangement of claim 1 , further comprising a separating clutch (K 0 ) for disconnecting the first drive unit ( 2 ) from a drive train, the separating clutch (K 0 ) disposed between the first drive unit ( 2 ) and the first and second clutches (K 1 , K 2 ) in a power flow path from the first drive unit ( 2 ) to the drive train.

15. A motor vehicle comprising the dual clutch transmission arrangement of claim 1 .

16. The dual clutch transmission arrangement of claim 1 , wherein a disk carrier of the first clutch (K 1 ) is connected a disk carrier of the second clutch (K 2 ) by a connecting shaft.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Roske Michael
• Kaltenbach Johannes
• Rosemeier Thomas
• Pawlakowitsch Juri
• Kuberczyk Raffael

Classifications

• F16H2003/0931

  each countershaft having an output gear meshing with a single common gear on the output shaft · CPC title

• F16H2003/008

  comprising means for selectively driving countershafts · CPC title

• F16H3/006 Primary

  power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions · CPC title

• F16H3/093

  with two or more countershafts · CPC title

• F16H2200/0047

  the gear ratios comprising five forward speeds · CPC title