| 摘要 |
PROBLEM TO BE SOLVED: To accurately learn the correlation between the opening of an electrically controlled throttle and the amount of suction air of an internal combustion engine in a large domain within an idle range. SOLUTION: When the feedback control of idling is performed, the opening of the throttle is increased and corrected by retarding the ignition timing, and the correlation is learned on the side of a larger openings/larger amount of suction air than under normal idle control. Then the correlation between the opening of the throttle and the amount of the suction air is updated from a correlation at a plurality of points determined by a gradual increase in a retard angle correction amount. COPYRIGHT: (C)2007,JPO&INPIT
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