Engine idling speed control apparatus
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United States of America Patent
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-
Dec 14, 1993
Grant Date -
N/A
app pub date -
Apr 30, 1992
filing date -
May 2, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for controlling the idling speed of an internal combustion engine. The apparatus comprises sensors for producing electrical signals indicative of sensed engine operating conditions including a sensed amount of air permitted to enter the engine. A control unit is coupled to the sensors for providing a feedback control to correct the amount of air permitted to enter the engine so as to maintain the engine idling speed at a target value when the engine is idling. The control unit calculates a difference of the sensed air amount from a reference value and corrects the target engine speed based upon the calculated difference.
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