Title:
車両用電池管理装置及び電流センサのオフセット検出方法
Document Type and Number:
Japanese Patent JP5411046
Kind Code:
B2
Abstract:
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.
Inventors:
Yoshihiro Daito
Application Number:
JP2010084514A
Publication Date:
February 12, 2014
Filing Date:
March 31, 2010
Export Citation:
Assignee:
Prime Earth ev Energy Co., Ltd.
International Classes:
B60L3/00; G01R31/36; H01M10/48
Domestic Patent References:
| JP2009002736A | ||||
| JP2008155677A | ||||
| JP2006184160A | ||||
| JP2000298145A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda