| 摘要 |
<P>PROBLEM TO BE SOLVED: To rapidly and accurately detect completion of warming-up even in an environment where an engine temperature is difficult to rise up, and to avoid useless elongation of fast idling control in a fast idlie control device for a vehicle engine wherein warming-up of the engine is performed by opening an auxiliary air valve disposed in an auxiliary intake passage bypassing a throttle valve, ignition timing is retarded in order to prevent blowing up, and thereby an engine speed conforms to a target idle speed. Ž<P>SOLUTION: A retarded amount detection means 37 determines whether a total retarded amount from base ignition timing in retard control by an ignition timing control means 36 reaches a prescribed value or not, and outputs an end signal for ending fast idle control when it is determined that the total retarded amount reaches the prescribed value, and an auxiliary air valve control means 35 fully closes the auxiliary air valve 25 in accordance with end signal output from the retarded amount detection means 37. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
