Method of controlling speed reduction ratio of continuously variable speed transmission
US4961315A · kind A · utility
13Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/465
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of controlling a speed reduction ratio includes setting a reference engine speed in correspondence with an accelerator opening, measuring the atmospheric pressure, correcting the reference engine speed in correspondence with a change of the atmospheric pressure to compensate for a change in engine output power caused by the change of the atmospheric pressure, and controlling the speed reduction ratio so that the engine speed coincides with the corrected reference engine speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.