| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent power supply to a main machine and the other auxiliary machines from being affected by cutting off the power supply only to the absolute minimum-auxiliary machine when abnormality occurs in a certain auxiliary machine in a vehicular power supply device mounting a plurality of auxiliary machines thereon. <P>SOLUTION: Power converters 12 connected to the respective auxiliary machines 3 are divided into at least one group or more, the power converter groups 15 to 17 are formed and connected to common electric power supply lines connected to a secondary battery 5 for every group, and power cut-off means 22 which cuts off the power supply to every group are provided on the common electric power supply lines 19, 20. When the abnormality requiring power interruption occurs in one of the auxiliary machines 3, the power supply only to the power converter group to which the power converter 12 connected to the auxiliary machine 3 in an abnormal condition belongs is cut off by the power interruption means 22 without disturbing the power supply to a driving motor 2 (main machine). <P>COPYRIGHT: (C)2013,JPO&INPIT |
