发明名称 |
VEHICLE-BATTERY MANAGEMENT DEVICE AND OFFSET DETECTING METHOD OF CURRENT SENSOR |
摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle-battery management device that manages charging/discharging currents of a secondary battery with higher accuracy, and an offset detecting method of a current sensor that more accurately detects an offset in a current sensor used in the management device.SOLUTION: The vehicle-battery management device manages charging/discharging of a second battery BT by which power transfer to/from a traveling motor/generator takes place. The vehicle-battery management device is provided with: a current sensor AM for measuring a current of the secondary battery BT; a parallel circuit composed of a series circuit comprising the secondary battery BT and the current sensor AM, and a series circuit connected in parallel to the series circuit and comprising a first relay 13 and a resistor R1; a main relay 11 provided between the parallel circuit and the power transfer destination; and a battery management ECU 10 that controls opening/closing of the main relay 11 and the first relay 13 respectively separately from each other and calculates a current value applied to the charging/discharging of the secondary battery BT on the basis of the detection value detected by the current sensor AM. |
申请公布号 |
JP2011217543(A) |
申请公布日期 |
2011.10.27 |
申请号 |
JP20100084514 |
申请日期 |
2010.03.31 |
申请人 |
PRIMEARTH EV ENERGY CO LTD |
发明人 |
DAITO YOSHIHIRO |
分类号 |
B60L3/00;G01R31/36;H01M10/48 |
主分类号 |
B60L3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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