Method of controlling an air/fuel ratio of a vehicle mounted int

Details Method of controlling an air/fuel ratio of a vehicle mounted int Method of controlling an air/fuel ratio of a vehicle mounted int

1987-01-22

1988-01-26

Husar, Stephen F.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02M 300

Patent

active

047210826

ABSTRACT:
A method determines a control parameter of an air/fuel ratio of an internal combustion engine having an idle rotational speed control device by which the throttle valve is opened when an electric unit such as the head light or the air conditioner is turned on during the idling of the engine. The air/fuel ratio is controlled to be leaner than a target air fuel ratio when the engine is idling, and controlled to a further leaner side when the electric unit is operating during the idling of the engine.

REFERENCES:
patent: 4376427 (1983-03-01), Mizuno
patent: 4617890 (1986-10-01), Kobayashi et al.

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