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Double-clutch transmission for vehicles

A dual-clutch transmission, dual-clutch speed change technology, applied in the direction of transmission, gear transmission, belt/chain/gear, etc.

Inactive Publication Date: 2011-05-04
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dual clutch transmission is not widely used in street driving cars

Method used

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  • Double-clutch transmission for vehicles
  • Double-clutch transmission for vehicles
  • Double-clutch transmission for vehicles

Examples

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Embodiment Construction

[0057] In the following description, embodiments of the present application will be described in detail. It will be apparent, however, to one skilled in the art that the invention may be practiced without these details.

[0058] Figure 1-9 and 11-15 provide detailed descriptions of embodiments of the dual clutch transmission (DCT) of the present application.

[0059] figure 1 A front view of an embodiment of the dual clutch transmission 1 of the present application is shown. DCT 1 includes reverse idler shaft 38 , larger output gear 12 on output shaft 14 , upper pinion 41 on upper layshaft 40 , solid input shaft 20 , hollow input shaft 22 and lower Pinion 51 .

[0060] The input shaft 20 is also referred to as K1. The input shaft 22 is also referred to as K2. The solid input shaft 20 and the hollow input shaft 22 share the same longitudinal axis of rotation and are non-rotatably connected to the two clutches 8 , 10 of the dual clutch transmission 6 , respectively. Clut...

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Abstract

Double-clutch transmission (1) (DCT) comprises an inner input shaft (20) inside an outer input shaft (22). Two clutches (8, 10) of the DCT (1) are connected to the input shafts (20, 22) respectively. The DCT (1) has three layshafts (40, 50, 38) that are parallel to the input shafts (20, 22). One or more pinions (41, 51) are fixed onto the layshafts (40, 50) respectively. Seven forward gearwheel groups and one reverse gearwheel group of the DCT (1) are arranged on the shafts (20, 22, 40, 50, 38). Each one of the gearwheel groups comprises a fixed gearwheel on one of the input shafts (20, 22), meshing with an idler gearwheel on one of the layshafts (40, 50, 38). In particular, a third fixed gearwheel (30) meshes with a third idler gearwheel (62) and a fifth idler gearwheel (64). Especially, the DCT comprises a park-lock.

Description

technical field [0001] The present invention relates to a dual clutch transmission for a vehicle, such as an automobile. Background technique [0002] A dual clutch transmission includes two input shafts that are individually connected to and actuated by two clutches. These two clutches are usually combined into a single unit, allowing either clutch to be actuated at a time. These two clutches transmit drive torque from the engine to the two input shafts of the dual clutch transmission. [0003] US 6,634,247 B2 discloses a six-speed dual-clutch transmission with an electric unit. Such dual clutch transmissions have not been widely used in street driving cars. Issues hindering the widespread adoption of dual clutch transmissions include providing compact, reliable and fuel efficient dual clutch transmissions. Therefore, there is a need to provide such dual clutch transmissions that are affordable to consumers. Contents of the invention [0004] The present application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/00F16H3/093
CPCF16H3/006F16H2003/0931
Inventor 迈克尔·B·莫琳阿克塞尔·盖伯格马塞厄斯·雷姆勒马库斯·罗肯巴克
Owner GM GLOBAL TECH OPERATIONS LLC
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