| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a catalyst of a hybrid vehicle from being exposed to a high-temperature lean atmosphere and to match power output from an engine with required power for an engine. <P>SOLUTION: When the required power for the engine is not zero (NO in S320), since an air amount is not increased (S330), the required power for the engine matches with the power output from the engine. On the other hand, when the required power for the engine is zero (YES in the S320), the air amount is increased (S340) and no-load operation of the engine is performed. Therefore, even if the air amount is increased, the output power does not fluctuate, and a fuel injection amount appropriate for the increased air amount is calculated based on a target air-fuel ratio to increase the fuel injection amount, and the exhaust is not in the lean atmosphere. Therefore, the exhaust catalyst is prevented from being exposed to the high-temperature lean atmosphere. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
