Control system for automotive automatic transmission
US5261297A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Oct 9, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H59/74
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system for automatic transmission is provided in a motor vehicle having an internal combustion engine and an automatic transmission associated with the engine. The engine is operable on a fuel which is a mixture of gasoline and alcohol. The control system comprises an alcohol sensor for sensing the alcohol concentration in the fuel; a first device for deriving an engine load parameter which represents the load applied to the engine; a second device for correcting the engine load parameter with reference to the alcohol concentration sensed by the alcohol sensor; and a third device for controlling a line pressure of the transmission in accordance with the corrected engine load parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.