Method and apparatus for controlling air-fuel ratio in internal combustion engine
US4627404A · kind A · utility
7Cited by
11References
31Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 28, 1984 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Nov 28, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1487
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an internal combustion engine, a base fuel amount is calculated, and an air-fuel ratio deviation for each region is determined by a predetermined engine operating parameter when the engine is in a transient state such as an acceleration state or a deceleration state. A transient fuel correction amount is calculated in accordance with the calculated air-fuel ratio deviation for each region determined by the predetermined engine operating parameter. A fuel amount to be supplied to the engine is calculated by correcting said base fuel amount in accordance with the transient fuel correction amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.