Method for controlling engine idling rpm immediately after the s

Details Method for controlling engine idling rpm immediately after the s Method for controlling engine idling rpm immediately after the s

1983-05-03

1984-10-30

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123588, F02D 902, F02D 3100

Patent

active

044794711

ABSTRACT:
An idling rpm control method for feedback control of a control valve for controlling the quantity of supplementary air being supplied to the engine in response to a difference between actual engine idling rpm and desired idling rpm. At the start of the engine, the control valve is continuously opened for a predetermined period of time from the time the engine rpm has increased above a predetermined value lower than the desired idling rpm, thereby maintaining the engine rpm at a value higher than the above desired idling rpm. The above predetermined period of time may desirably be set to a value as a function of engine temperature, preferably detected immediately after the engine rpm has exceeded the above predetermined value of engine rpm.

REFERENCES:
patent: 3964457 (1976-06-01), Coscia
patent: 4364348 (1982-12-01), Itoh et al.
patent: 4399789 (1983-08-01), Yano
patent: 4407243 (1983-10-01), Otsuka et al.
patent: 4414943 (1983-11-01), Nagase

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