Transmission shift control
US5044216A · kind A · utility
12Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved electrically controlled, fluid pressure actuated transmission control system (100) is provided. The improved control system includes an anti-default valve (102), preferably a normally closed solenoid controlled valve, fluidly interposed between the system source of pressurized fluid and the various pressurized and/or exhausted chambers of the system piston/cylinder actuator assembly (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.