Idling speed feedback control method for internal combustion eng

Details Idling speed feedback control method for internal combustion eng Idling speed feedback control method for internal combustion eng

1985-09-26

1987-02-03

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02D 4116, F02M 307

Patent

active

046402446

ABSTRACT:
An idling speed feedback control method for an internal combustion engine for controlling the operating amount of a control valve for regulating the quantity of intake air being supplied to the engine in response to the difference between a desired idling speed and an actual engine speed, while the engine is in a predetermined idling region. A correction value for the operating amount of the control valve is determined in dependence upon the valve of a signal indicative of generating conditions of a generator driven by the engine for supplying electric power to at least one electrical device, and the operating amount of the control valve is corrected by means of the thus determined correction value. When the engine has entered the predetermined idling region immediately following deceleration, an initial value of the operating amount of the control valve which is applied at the start of the feedback control is set to a sum of a value obtained by correcting the correction value by means of a predetermined increment, and a predetermined reference value. While the engine is decelerating toward the predetermined idling region, the operating amount of the control valve is set to a value equal to the initial value.

REFERENCES:
patent: 4467761 (1984-08-01), Hasegawa
patent: 4491108 (1985-01-01), Hasegawa et al.

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