发明名称 |
Apparatus and method for estimating resistance characteristics of battery based on open circuit voltage estimated by battery voltage variation pattern |
摘要 |
An apparatus for estimating resistance characteristics of a battery includes a data storing manager for obtaining and storing battery voltage, current and temperature data of a battery, whenever estimating a battery resistance characteristic; an open circuit voltage calculator for calculating battery open circuit voltage from a battery voltage variation pattern measured at the present and in the past; a weighted mean resistance calculator for calculating a battery resistance parameter from a battery current and a difference between the battery open circuit voltage and a battery voltage, and calculating a weighted mean resistance from battery resistance parameters calculated at the present and in the past; a weighted mean resistance convergence calculator for calculating a weighed mean resistance convergence value by repeatedly calculating a weighted mean sequence using the weighted mean resistance as an initial condition; and a resistance characteristic estimator for estimating a battery resistance from the weighted mean resistance convergence value. |
申请公布号 |
US8185332(B2) |
申请公布日期 |
2012.05.22 |
申请号 |
US201113172922 |
申请日期 |
2011.06.30 |
申请人 |
KANG JUNG-SOO;KIM JU-YOUNG;LG CHEM, LTD. |
发明人 |
KANG JUNG-SOO;KIM JU-YOUNG |
分类号 |
G01R27/00 |
主分类号 |
G01R27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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