| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect more accurately a variation of an air-fuel ratio of each cylinder of an internal combustion engine of a plurality of cylinders while acquiring power required for traveling. <P>SOLUTION: When the dispersion of an air-fuel ratio of each cylinder of an engine is detected, power acquired by subtracting smaller power between prescribed power α and battery output restriction Wout from required vehicle power Pd* is set as required engine power Pe* (S140), and a rotational frequency of the engine is reduced in comparison with the case that the variation of the air-fuel ratio is not detected by controlling the engine and two motors by using Pe*. By this, the variation of the air-fuel ratio of each cylinder of the engine can be detected accurately during traveling while outputting required torque Tr* required for traveling. <P>COPYRIGHT: (C)2011,JPO&INPIT |
