Shift-by-wire actuation of a transmission park brake
US9114790B2 · kind B2 · utility
3Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/66
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission park-brake system includes a transmission park brake, a solenoid, first, second and third pressure sources, and a servo valve for disengaging the park-brake using the first and second pressure sources, holding the park-brake disengaged using a force produced by the solenoid and one of the first and second pressure sources, and engaging the park-brake using the third pressure source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.