Air/fuel ratio control system
US4592325A · kind A · utility
16Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1985 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Apr 23, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/2454
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air/fuel ratio control system uses an oxygen sensor with which the air/fuel ratio of rich fuel mixture is measured. In this system, a feedforward control of the air/fuel ratio is executed even under operating condition when the engine operates on the rich fuel mixture, and a feedforward control of the air/fuel ratio is executed to enrich the fuel mixture at acceleration in accordance with a control data table which is subject to change after learning during the engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.