| 摘要 |
PROBLEM TO BE SOLVED: To decrease a consumed fuel amount and increase an exhaust emission control performance by setting longer a delay time of a feedback control performed when an engine enters a delay feedback control range. SOLUTION: In this air/fuel control device of the engine, a feedback control range is divided into a first feedback control area in which an engine load amount is small and a second feedback control area in which the engine load amount is large. The control device comprises a delay time recovering control means which, when an engine load amount detection value returns from the delay feedback control range to the feedback control range, controls a delay time consumed by a time during a feedback control is performed in the delay feedback control range so as to be differently recovered between the first feedback control range and the second feedback control range. COPYRIGHT: (C)2004,JPO
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