| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular power system that can reduce a drop level of a voltage of a smoothing capacitor upon a sudden change in torque. <P>SOLUTION: The vehicular power system includes a DC/DC converter 3, an inverter 4, a smoothing capacitor 2 for smoothing a voltage therebetween, and general control means 7 for generally controlling the operation of the DC/DC converter 3 and inverter 4 on the basis of external information. The DC/DC converter 3 includes a converter control device 35 for controlling an output voltage thereof to an output voltage target value V0. When outputting a torque command for torque increase or torque reduction, the converter control device 35 receives from the general control means 7 a notification signal indicating the torque increase or torque reduction at a timing earlier by a predetermined time period, and performs pulse width modulation control according to an output voltage target value V1 and V2 larger or smaller by a predetermined percentage than the output voltage target value V0 for normal control on the basis of the notification signal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
