| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a leakage detection device capable of achieving leakage detection of a high-voltage battery at low cost and with a simple circuit configuration. <P>SOLUTION: The leakage detection device includes: a first voltage-dividing circuit connected in parallel to a first cell module; a second voltage-dividing circuit connected in parallel to a second cell module; a first switch interposed on a line connecting the output end of the first voltage-dividing circuit with the other end of a ground connection resistance; a second switch interposed on a line connecting the output end of the second voltage-dividing circuit with the other end of the ground connection resistance; a first voltage detecting circuit for detecting the output voltage of the first voltage-dividing circuit; a second voltage detecting circuit for detecting the output voltage of the second voltage-dividing circuit; and a determination circuit for determining leakage occurrence of a high-voltage battery based on the output voltage of the first voltage-dividing circuit which has been detected when the first switch is on, and the output voltage of the second voltage-dividing circuit which has been detected when the second switch is on. <P>COPYRIGHT: (C)2013,JPO&INPIT |
