| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging control device of a vehicle for, even when a cell voltage sensor brakes down, enabling the vehicle to travel without the occurrence of over-discharge or over-charge.SOLUTION: The charging control device of a vehicle includes: a plurality of battery cells 6 configuring an on-vehicle battery unit 5; a charging circuit for connecting each battery cell 6 to a charging port; a contactor 2 for charging for switching the cut-off state and connection state of the charging circuit; a voltage sensor 10 for a contactor to be used for the failure detection of the contactor 2 for charging; a plurality of voltage sensors 7 for cells for measuring the voltage of each battery cell 6; and failure detection means for detecting the failure of each voltage sensor 7 for cells. When the failure of any voltage sensor 7 for cells is detected by the failure detection means, the contactor 2 for charging is turned on, and the voltage values of the plurality of battery cells 6 are measured by the voltage sensor 10 for the contactor, and the charging/discharging control of the battery unit 5 is performed on the basis of the measured values.SELECTED DRAWING: Figure 1 |
