Air-fuel ratio control method and apparatus for an internal combustion engine
US4475517A · kind A · utility
37Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1982 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Aug 12, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1483
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The proportion constant for proportional calculation and/or the integration time-constant for integral calculation with respect to the air-fuel ratio correction factor is changed in accordance with the engine warm-up condition, and the fuel-feeding rate is controlled in accordance with the calculated air-fuel ratio correction factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.