Hydraulic control systems for dual clutch transmissions
US8402855B2 · kind B2 · utility
6Cited by
26References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2010 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Hydraulic control systems for a dual clutch transmission include a regulated source of pressurized hydraulic fluid including an electric pump, a filter and an accumulator, a pair of pressure control valves and a branching hydraulic circuit including pressure or flow control valves, spool or logic valves and two position valves which collectively supply and exhaust hydraulic fluid from a plurality of shift actuators. The actuators are connected to shift rails which include shift forks and are slidable to engage synchronizers and positive clutches associated with the various gear ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.