| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure a desired motor output, to prevent a running performance of a vehicle from being degraded, and to implement an efficient power conversion operation in a power supply comprising a fuel cell and a storage apparatus. <P>SOLUTION: A controller 22 controls operations of first and second DC-DC converters 12, 14 so as to make a system voltage VS from a fuel cell system provided with the fuel cell 13 and the storage apparatus 11 as the power supply of a motor 16, a predetermined voltage or more required for ensuring the predetermined motor output, if a target motor output is larger than a predetermined output threshold value. The controller 22 configures the second DC-DC converter 14 to be electrically and directly connected, and supplies output power from the fuel cell 13 to the motor 16 in priority to output power from the storage apparatus if the target motor output is a predetermined output threshold value or less. <P>COPYRIGHT: (C)2007,JPO&INPIT |
