Title:
蓄電池劣化判定装置および蓄電池劣化判定システム
Document Type and Number:
Japanese Patent JP5138160
Kind Code:
B2
Abstract:
To provide an energy-saving, reliable storage battery deterioration judgment system which can properly detect and estimate the capacity of each storage battery while reducing power consumption and improve estimation precision as the detection is repeated.
One pilot cell is discharged and the capacity of the pilot cell is detected. A regression equation indicating the correlation between internal impedance and capacity is created on the basis of past impedance measurement results and capacity detection results. Using the created regression equation, the capacity of a remaining cell is estimated.
COPYRIGHT: (C)2007,JPO&INPIT
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Inventors:
Tomonobu Tsujikawa
Yabuta Hiho
Matsushita Jie
Yabuta Hiho
Matsushita Jie
Application Number:
JP2005205956A
Publication Date:
February 06, 2013
Filing Date:
July 14, 2005
Export Citation:
Assignee:
Ntt Facilities Co., Ltd.
International Classes:
G01R31/36; H01M10/48
Domestic Patent References:
| JP2003022844A | ||||
| JP2000014032A |
Attorney, Agent or Firm:
Makoto Nakamura
Sadao Muramatsu
Ryo Hashimoto
Sadao Muramatsu
Ryo Hashimoto