Title:
電池制御装置
Document Type and Number:
Japanese Patent JP5331493
Kind Code:
B2
Abstract:
A plurality of resistance value tables of a battery group with respect to temperature and SOC of the assembled battery, which are measured in advance when currents of different change patterns flow in the assembled battery, are stored. A resistance value for the assembled battery is calculated, based upon its voltage and current. From among the plurality of resistance value tables, a resistance value table is selected so that it corresponds to the change pattern of the current flowing in the assembled battery when the voltage and the current of the assembled battery were measured, and a resistance value is searched for from that resistance value table corresponding to the temperature and the SOC of the assembled battery. Then the calculated resistance value and the one from the table are compared to determine the life of the assembled battery.
Inventors:
Yoshinari Aoshima
Masahiro Ueda
Youhei Kawahara
Koji Higashimoto
Masahiro Ueda
Youhei Kawahara
Koji Higashimoto
Application Number:
JP2009004724A
Publication Date:
October 30, 2013
Filing Date:
January 13, 2009
Export Citation:
Assignee:
日立ビークルエナジー株式会社
株式会社日立製作所
株式会社日立製作所
International Classes:
G01R31/36; B60L3/00; H01M10/42; H01M10/44; H01M10/48; H02J7/00
Domestic Patent References:
| JP2008253129A | ||||
| JP2003132959A |
Foreign References:
| WO2008108102A1 |
Attorney, Agent or Firm:
Fuyuki Nagai