Vehicle engine idle speed governor with unsymmetric correction r

Details Vehicle engine idle speed governor with unsymmetric correction r Vehicle engine idle speed governor with unsymmetric correction r

1979-12-19

1981-01-20

Myhre, Charles J.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

180178, 123361, F02D 1110

Patent

active

042455995

ABSTRACT:
A vehicle engine has a throttle stop positionable in response to an actuator command signal to determine engine idle speed. Apparatus is provided to generate a speed error signal having both an absolute value and a further characteristic indicative of high or low speed; and further apparatus is provided including a memory effective to store actuator command signals corresponding to specific speed error signals and speed correction apparatus effective to obtain an actuator command signal from the memory corresponding to each speed error signal and supply the actuator command signal to the throttle stop positioning apparatus to correct engine idle speed in the direction of a predetermined desired engine idle speed. The actuator command signals corresponding to at least the largest low speed error signals have absolute values effective to produce a greater throttle stop movement than the actuator command signals corresponding to the high speed error signals of the same absolute value, so that the control responds at a faster rate to large low speed errors than to equivalently large high speed errors.

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patent: 4084559 (1978-04-01), Wallbaum
patent: 4098242 (1978-07-01), Anderson
patent: 4155419 (1979-05-01), Mann

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