Idling revolution control device for an internal combustion engine
Patent
·
OSTI ID:6271550
An idling rpm control device for an internal combustion engine for controlling idling rpm of the engine depending upon operating parameters, comprises range detecting means for detecting a range of variations in idling rpm of the engine. According to the invention if an rpm variation range is more than a predetermined value, an air-fuel ratio of mixture is controlled toward a richer mixture and as the result if the range is increased, the air-fuel ratio is controlled toward a leaner mixture, thereby minimizing the rpm variation range to improve operation of a vehicle equipped with the engine.
- Assignee:
- Nissan Motor Co Ltd (Japan)
- Patent Number(s):
- US 4380979
- OSTI ID:
- 6271550
- Country of Publication:
- United States
- Language:
- English
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