Method and an apparatus for controlling the air-fuel ratio in an internal combustion engine
US4416237A · kind A · utility
23Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Feb 25, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The pulse-width of the fuel injection signal is controlled, depending upon the running speed and the intake manifold pressure, and corrected by the transient correction factor, which is determined in accordance with the transient operating condition, and the A/F correction factor, which is determined the air-fuel ratio condition. The map used for obtaining the transient correction factor from the transient operating condition is corrected depending upon the converging state of the A/F correction factor by the learning control operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.