| 摘要 |
PROBLEM TO BE SOLVED: To easily detect presence of disconnection in a voltage detection line while restraining complexity of device configuration. SOLUTION: A central processing unit 56 detects the cell voltage of each capacitor cell 41 of a capacitor 13 corresponding to a control command inputted from a control device 17 in starting a vehicle or the like. A switching device 52b of a bypass circuit 52 connected with each capacitor cell 41 in parallel is set to an ON state as bypass processing. The cell voltage is detected upon execution of the bypass processing, a variation in a detected value of the cell voltage is calculated just before/ after the bypass processing is executed. It is determined whether or not the variation in the calculated cell voltage is larger than a prescribed determination value. If a determination result is "NO", a voltage detection line 42 is determined as normal. If the determination result is "YES", the voltage detection line 42 is determined as abnormal and as the voltage detection line 42 being disconnected. COPYRIGHT: (C)2004,JPO |
