Title:
バッテリー状態推定方法及び装置
Document Type and Number:
Japanese Patent JP4763050
Kind Code:
B2
Abstract:
Disclosed is a method and apparatus of estimating a state of health (SOH) of a battery using internal resistance, which has been found to act as a parameter exerting the greatest influence on the SOH of the battery. The method comprises the steps of: storing an SOH estimation table constructing SOH values corresponding to various values of internal resistance according to temperature and a state of charge (SOC) in a memory; performing measurement of the temperature and estimation of the SOC of the battery when a request is made to estimate the SOH; detecting the internal resistance value of the battery; and reading the SOH values corresponding to the measured temperature, the estimated SOC of the battery, and the detected internal resistance value of the battery from the SOH estimation table.
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Inventors:
Cho, Il
Kim, Do-Yoon
Jun, De Yang
Kim, Do-Yoon
Jun, De Yang
Application Number:
JP2008519174A
Publication Date:
August 31, 2011
Filing Date:
June 30, 2006
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
G01R31/36; B60R16/04; H01M10/48
Domestic Patent References:
| JPS6298278A | 1987-05-07 | |||
| JP2004271342A | 2004-09-30 | |||
| JP2001228226A | 2001-08-24 |
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Tomoya Deguchi
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Tomoya Deguchi