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Patent Searching and Data


Title:
FAILURE DIAGNOSIS DEVICE OF SUB-POWER SUPPLY
Document Type and Number:
Japanese Patent JP2007120960
Kind Code:
A
Abstract:

To provide a failure diagnosis device of a sub-power supply capable of securing at the minimum a capacity of the sub-power supply even during failure diagnosis of the sub-power supply.

This device is equipped with a main power supply 20 used at an ordinary time and two backup batteries B1, B2 used only at a necessary time. After moving the charge from one backup battery of the backup batteries B1, B2 to the other backup battery, one backup battery is charged, and failure diagnosis of one backup battery is performed.


Inventors:
ASAUMI TOSHIO
Application Number:
JP2005309539A
Publication Date:
May 17, 2007
Filing Date:
October 25, 2005
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
G01R31/36; H01M10/44; H01M10/48; H02J7/14; H02J7/34
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama