| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform injection quantity calculation in which deviation between a detected value of an air flow meter and an estimated air quantity is appropriarely compensated for at the abnormal time of the air flow meter. Ž<P>SOLUTION: This control device for an internal combustion engine executes air-fuel ratio feed back control and air-fuel ratio learning control. Specifically, a ratio learning value storing means stores a ratio between an air quantity detected by the air flow meter and the estimated air quantity obtained by estimation at the normal time of the air flow meter as a ratio learning value. A control means performs injection quantity calculation, using the air quantity obtained based on the ratio learning value and the estimated air quantity at the abnormal time of the air flow meter, and executes fuel injection. The deviation between the detection value (true air quantity) of the air flow meter and the estimated air quantity can be appropriately compensated for thereby at the time of abnormality of the air flow meter. Consequently, an injection quantity can be calculated using a value close to the true air quantity, and a learning value obtained at the normal time of the air flow meter can be effectively used. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
