Method and apparatus for controlling reduction ratio of continuously variable transmission
US4597308A · kind A · utility
27Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1983 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Apr 19, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/1005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The reduction ratio of a continuously variable transmission is controlled by a stepper motor. The stepper motor is controlled such that each of rotary positions thereof corresponds uniquely to a desired optimum reduction ratio indicative signal indicative of a desired optimum reduction ratio. The desired optimum reduction ratio indicative signal is generated for operating condition of an automotive vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.