Method and arrangement for controlling the fuel/air ratio of an internal combustion engine
US4896643A · kind A · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1479
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a method and arrangement for controlling the fuel/air ratio of an internal combustion engine in which the output voltage of an oxygen measurement probe which is arranged in the exhaust pipe of the internal combustion engine is used, after comparison with threshold values, for regulating the fuel/air ratio, the threshold values can be controlled as a function of extreme values of the output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.