| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the output of an electric motor and energy efficiency while suppressing the occurrence of a failure due to the occurrence of resonance in a voltage adjusting means for adjusting a voltage of an electric motor drive circuit side with respect to a voltage of a DC power supply side. <P>SOLUTION: In a hybrid automobile 20, when a target operation point of a motor MG1 or MG2 is included in a predetermined resonant region including the operation points of the motors MG1 and MG2 when resonance occurs in a voltage step-up converter 55, the voltage step-up converter 55 is controlled so that the voltage of the inverters 41, 42 side may be a predetermined target boosted voltage VHtag higher than the voltage of the battery 50 side, and the inverters 41, 42 are controlled using a sinusoidal wave PWM control system (steps S110, S120, S140 and S150). <P>COPYRIGHT: (C)2010,JPO&INPIT |
