Method of controlling air-fuel ratio and ignition timing in internal combustion engine and apparatus therefor
US4559915A · kind A · utility
4Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Mar 15, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a steady running condition of a vehicle, an air-fuel ratio is controlled to be equalized in value to a target air-fuel ratio leaner than a stoichiometric air-fuel ratio and an ignition timing is controlled to be equalized in value to a required ignition timing, so that a fuel consumption can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.