发明名称 |
Apparatus for estimating open circuit voltage of battery, apparatus for estimating state of charge of battery, and method for controlling the same |
摘要 |
An apparatus for estimating an OCV of a battery includes a voltage sensing unit for measuring a battery output voltage; a temperature sensing unit for measuring a battery temperature; a data storing unit for periodically receiving the battery output voltage and temperature data from the sensing units and storing the data in a memory; an OCV variation estimating unit for calculating an OCV variation from a varying pattern of battery output voltages measured in the past and at the present, stored in the memory, by applying a mathematical model defining a correlation between the varying pattern and the OCV variation, and estimating an OCV at a current stage by reflecting a correction factor corresponding to the battery temperature on the calculated OCV variation; and an OCV estimating unit for estimating an OCV at the current stage by reflecting the estimated OCV variation on the OCV estimated at a last stage. |
申请公布号 |
US8639460(B2) |
申请公布日期 |
2014.01.28 |
申请号 |
US201213440410 |
申请日期 |
2012.04.05 |
申请人 |
KANG JUNG-SOO;KIM DO-YOUN;JUNG CHANG-GI;JUNG DO-YANG;LG CHEM, LTD. |
发明人 |
KANG JUNG-SOO;KIM DO-YOUN;JUNG CHANG-GI;JUNG DO-YANG |
分类号 |
G01R31/36 |
主分类号 |
G01R31/36 |
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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