IDLE SPEED ACTUATOR SELF-CLEANING FUNCTION CONTROLLING METHOD OF ENGINE

摘要

PURPOSE: An idle speed actuator self-cleaning control method is provided to achieve improved controllability and engine durability, while reducing costs and suppressing increase of exhaust gas. CONSTITUTION: An idle speed actuator self-cleaning control method comprises a step(S210,S212,S214) of reading information of engine and judging whether a condition is a self cleaning condition of an idle speed actuator; a step(S216) of controlling an idle speed actuator duty at the first duty if the condition is a self cleaning condition; a step(S218) of controlling the idle speed actuator duty from the first duty to the second duty; and a step(S220) of repeatedly changing the idle speed actuator duty for predetermined times.