Control system for hydraulic automatic clutch
US4576265A · kind A · utility
23Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1983 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Oct 20, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/7109
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The control system comprises a starting valve wherein an engine revolution speed indicative fluid pressure and a start adjustment fluid pressure act on a spool of the valve against each other. The starting valve generates a start pressure to be used as a clutch engagement pressure for a hydraulic clutch. The start adjustment fluid pressure is generated by a start adjustment valve coupled with an electronic control unit. Under the control of the electronic control unit, the start adjustment offsets a variation in the engine revolution fluid pressure when the engine idles with the vehicle at a standstill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.