Method and apparatus for controlling the steplessly variable transmission ratio of a continuously variable transmission, especially of a cone disk belt transmission, in a motor vehicle
US4852429A · kind A · utility
12Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Oct 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S477/904
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for the control of the continuously variable transmission ratio of a cone disk belt transmission in a motor vehicle with internal combustion engine, in which changes of the engine rotational speed are guided from actual to desired value specified by the drive pedal during the corresponding transmission change along a rotational speed change desired specified characteristic curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.