Dual clutch transmission for a motor vehicle
US10119595B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | May 8, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0086
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dual-clutch transmission has first and second coaxial input shafts, the second shaft extending through the first shaft. The input shafts couple respective countershafts via input constants which have drive input and output wheels. The countershafts are selectively connectable, via spur gear stages that can be engaged by gearshift elements, to an output shaft. Four gear stages engage forward gears and one reverse gear stage engages reverse gears. The second and fourth gear stages are arranged between the first countershaft and the output shaft, and the other gear stages are arranged between the second countershaft and the output shaft. The first input constant has a higher gear ratio than the second input constant. The output of the first input constant is a loose wheel supported on the second countershaft and can couple the first countershaft by a first coupling element. A second coupling element couples the first and second countershafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.