Idling speed control device of an engine

Details Idling speed control device of an engine Idling speed control device of an engine

1990-02-14

1991-05-28

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123492, 123493, F02M 306, F02M 5100

Patent

active

050184946

ABSTRACT:
An idling speed control device normally controlling the idling speed of the engine so that it becomes equal to a desired idling speed. At the time of acceleration, the lean time and the rich time of the air-fuel mixture are calculated during the lean-rich discriminating time, which is basically equal to a time of an occurrence of the lean time and the rich time when the air-fuel ratio is maintained at the stoichiometric air-fuel ratio at the time of acceleration. If the lean time becomes considerably longer than the rich time when the engine is started, the idling speed is increased.

REFERENCES:
patent: 4364348 (1982-12-01), Itoh et al.
patent: 4416237 (1983-11-01), Aoki et al.
patent: 4422497 (1983-12-01), Komoda et al.
patent: 4499882 (1985-02-01), Saito et al.
patent: 4616619 (1986-10-01), Saito et al.
patent: 4633840 (1987-01-01), Saito et al.
patent: 4635200 (1987-01-01), Egami et al.

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