Valve control system
US7862471B2 · kind B2 · utility
4Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jun 5, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H59/72
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A solenoid control system for implementation with an electronic range selection (ETRS) system that shifts a transmission range between a park position and an out-of-park position. A first solenoid assembly is operable to control a fluid valve to supply pressurized fluid to urge a valve spool toward a first position. A second solenoid assembly is operable to control a fluid valve to supply pressurized fluid to urge said valve spool toward a second position. A control module selectively energizes one of the first and second solenoids based on a transmission fluid temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.