Clutch control system for a continuously variable transmission
US4648496A · kind A · utility
30Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Apr 12, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/1026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A clutch control system for a continuously variable transmission includes a mode determination system which samples input signals including position of the neutral-drive selector, driver demand, engine speed, vehicle speed, and clutch input speed. From these signals the operating mode is determined and the clutch control system operating mode is set. In starting the vehicle, a minor pressure feedback loop and a major engine speed feedback loop are used. When the clutch is locked up, these control loops are not employed in regulating the vehicle operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.