发明名称 |
Apparatus and method for diagnosing abnormality in cell balancing circuit |
摘要 |
<p>Provided are an apparatus and a method for diagnosing an abnormality in a cell balancing circuit. The apparatus may include a plurality of cell balancing circuits respectively connected to a plurality of battery cells included in a battery pack for balancing the voltages of the battery cells, a diagnosis resistor respectively installed between the cell balancing circuit and a cathode terminal and an anode terminal of the corresponding battery cell, a voltage measuring unit for measuring a voltage difference of the balancing circuit corresponding to each of the battery cells, and a control unit for turning on or off a cell balancing circuit to be diagnosed and for determining whether there is an abnormality in the cell balancing circuit to be diagnosed, based on a variation pattern of a voltage difference of a cell balancing circuit adjacent to the cell balancing circuit to be diagnosed that is measured by the voltage measuring unit.</p> |
申请公布号 |
EP2730933(A1) |
申请公布日期 |
2014.05.14 |
申请号 |
EP20140151199 |
申请日期 |
2010.08.23 |
申请人 |
LG CHEM, LTD. |
发明人 |
LEE, SANG-HOON;LEE, DAL-HOON;KANG, JU-HYUN;KIM, JEE-HO |
分类号 |
G01R31/02;G01R31/28;G01R31/36;H02J7/00 |
主分类号 |
G01R31/02 |
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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