Control system for continuously variable transmission with space saving automatic clutch control
US4542665A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Oct 20, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/66259
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A starting valve has a start fluid pressure regulating state and a complete engagement fluid pressure regulating state and supplies a regulated fluid pressure to a hydraulic clutch. A shift operating mechanism comprises a rod movable within a reduction ratio select range and an overstroke range. A complete engagement control valve has a spool operatively connected with the rod. When the rod is disposed within the reduction ratio select range, the complete engagement control valve renders the starting valve operable in the complete engagement fluid pressure regulating state, while when the rod is disposed within the overstroke range, the complete engagement control valve renders the starting valve operable in the start fluid pressure regulating state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.