| 摘要 |
PROBLEM TO BE SOLVED: To improve learning frequency in the learning of the changed part of a leakage air amount when a throttle valve is fully closed. SOLUTION: A speed reducing operation condition when a throttle valve is fully closed is detected (S24). Next, at the time of the speed reducing operation, deviationΔQ between an inlet air flow Q detected by an airflow meter (S25) and a target value Qs according to an engine rotational speed (S26) is detected (S27). Then, the deviationΔQ is converted into duty as the control amount of an auxiliary air control valve (S28) so as to update a learning correction amount on the basis of the converted value (S29).
|
