Procedure for upshifting gear in a motor vehicle and a power plant unit for a motor vehicle
US7077024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19233
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Method and arrangement for gear upshifting in a motor vehicle. The arrangement includes an internal combustion engine (1) with an engine-braking device (52), an automated disk-clutch (3), a multi-stage gearbox (9), in the casing (8) of which an input shaft (7), an intermediate shaft (11) and a main shaft (10) are mounted, and an intermediate shaft brake (50) for braking the intermediate shaft (11). When the upshifting takes place, the disk clutch (3) is disengaged and the intermediate shaft (11) is disengaged from the main shaft (10). The intermediate shaft brake (50) is activated so that the rotational speed of the intermediate shaft (11) is adapted to the next gear selected at the same time as the rotational speed of the engine (1) is adapted to the rotational speed of the input shaft (7) in the new gear by virtue of the engine-braking device (52) being activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.