Title:
余寿命判定方法
Document Type and Number:
Japanese Patent JP5623629
Kind Code:
B2
Abstract:
A method includes discharging an assembled battery (10) formed of a plurality of batteries until a state of charge (SOC) of the assembled battery becomes smaller or equal to a lower limit of a predetermined normal use range used in charge and discharge control of the assembled battery, measuring the discharge capacity of each of a plurality of battery blocks in the discharge of the assembled battery, the plurality of batteries being divided into the plurality of battery blocks, calculating the capacity difference in the discharge capacity among the plurality of battery blocks, and determining the remaining life of the battery block or the assembled battery based on the calculated capacity difference.
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Inventors:
奥村 素宣
市川 公一
松川 靖
前川活徳
山田 敏弘
市川 公一
松川 靖
前川活徳
山田 敏弘
Application Number:
JP2013508749A
Publication Date:
November 12, 2014
Filing Date:
March 30, 2012
Export Citation:
Assignee:
トヨタ自動車株式会社
プライムアースEVエナジー株式会社
プライムアースEVエナジー株式会社
International Classes:
G01R31/36; H01M10/48; H02J7/00
Domestic Patent References:
JP2002204538A | 2002-07-19 | |||
JPH07335266A | 1995-12-22 | |||
JP2002247773A | 2002-08-30 | |||
JP2002204538A | 2002-07-19 |
Attorney, Agent or Firm:
Katsufumi Mizuno
Makoto Ide
Hiroshi Suzawa
Makoto Ide
Hiroshi Suzawa
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