| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of compatibly achieving deceleration feeling and inhibition of temperature rise of a purification means during deceleration. Ž<P>SOLUTION: If a vehicle 1 is decelerating and bed temperature is not less than prescribed temperature, a catalyst deterioration inhibition control determination part 123 included in ECU 110 which is a control device for an engine 10 determines to execute catalyst deterioration inhibition control. In the catalyst deterioration inhibition control, fuel cut is prohibited and air quantity according to gear position of a transmission 15 is added as addition air quantity to target suction air quantity at an air quantity addition part 124. An engine control part 125 supplies fuel and air of the target suction air quantity to the engine 10. Consequently, exhaust gas containing oxygen can be inhibited from flowing in a catalyst 100, and temperature rise of the catalyst 100 during deceleration can be inhibited. Since fuel and suction air quantity according to the gear position, output during deceleration can be set to output appropriate to reducing ratio and deceleration feeling can be secured. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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