Vehicle engine output control method and apparatus
US5019989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/027
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A slip value of a driving wheel is calculated on the basis of driving and driven wheel velocities detected by wheel velocity sensors. A target engine output of a vehicle is set in accordance with the slip value of the driving wheel. A target fuel amount to the engine is set in accordance with the target engine output. A target opening of a throttle valve is set based on the target fuel amount. An opening correction value of the throttle valve is calculated in accordance with a deviation between the target fuel amount and an actual fuel amount to the engine detected by a fuel controller. A traction controller controls to cause the engine output to coincide with the target engine output by ontrolling the opening of the throttle valve to attain an opening as a sum of the target opening and the opening correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.