Apparatus for controlling rotational speed of internal combustio

Details Apparatus for controlling rotational speed of internal combustio Apparatus for controlling rotational speed of internal combustio

1980-05-28

1983-08-30

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Idle speed control

123320, 123340, 74860, 180170, F02D 1110

Patent

active

044010737

ABSTRACT:
A feedback control system for controlling the rotational speed in idling operation of an internal combustion engine mounted on a vehicle by altering an intake air amount is combined with means for detecting a predetermined engine operating condition where the rotational speed of the engine is decreased or restrained by the vehicle speed and means for limiting a control signal manipulating an intake air amount under a predetermined upper limit in the case where the predetermined engine operating condition is detected so that the control system is prevented from excessively increasing an intake air amount. Preferably the operation of the limiting means as well as the operation of the feedback control is performed by a programmed microcomputer.

REFERENCES:
patent: 3661131 (1972-05-01), Croft
patent: 3724433 (1973-04-01), Voss et al.
patent: 4064747 (1977-12-01), Rackliffe et al.
patent: 4169437 (1979-10-01), Fleischer
patent: 4237833 (1980-12-01), Des Lauriers
patent: 4237838 (1980-12-01), Kinugawa
patent: 4245599 (1981-01-01), Des Lauriers

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