| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately execute air-fuel ratio feedback control and air-fuel ratio learning control even at the abnormal time of an air flow meter. Ž<P>SOLUTION: A control device for an internal combustion engine executes the air-fuel ratio feed back control, the air-fuel ratio learning control, and the like. Specifically, a control means continues the air-fuel ratio feedback control and the air fuel ratio learning control without interruption at the abnormal time of the air flow meter, using a second learning zone different from a first learning zone for storing learning value provided by the air-fuel ratio learning control at the normal time of the air flow meter. Consequently, the air fuel ratio feedback control and the air-fuel ratio learning control can be appropriately executed even at the abnormal time of the air flow meter, and injection quantity change, air quantity change and the like due to hardware individual differences and secular change can be absorbed as at the normal time of the air flow meter. Consequently, deterioration of emission can be kept at the minimum. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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