发明名称 |
ANOMALY DETECTOR IN MOSFET SWITCHING ELEMENT AND METHOD FOR DETECTING ANOMALY |
摘要 |
An abnormality diagnostic device and method for a MOSFET switch element included in a rechargeable battery pack is provided that makes it possible to determine whether there exists a short circuit abnormality (fusion) in a MOSFET switch element that causes a charge current to flow in. An on/off controller 107 turns off a MOSFET 102a that causes a charge current to flow into a battery module 101, a start-of-charge instruction unit 108 transmits, to a charger 200, an instruction signal to start a charging operation, and a short circuit abnormality diagnostic unit 109 determines, on the basis of an output signal of a current sensor 110, whether current is flowing through the MOSFET 102a due to the charging operation of the charger 200, so as to diagnose a short circuit abnormality in the MOSFET 102a on the basis of a result of the determination. Further, after the diagnosis of the MOSFET 102a, a diagnosis of a short circuit abnormality in a MOSFET 102b that causes a discharge current to flow out of the battery module 101 is performed, and then a diagnosis of a short circuit abnormality in a charge relay 104 is performed. |
申请公布号 |
EP3048693(A1) |
申请公布日期 |
2016.07.27 |
申请号 |
EP20140846577 |
申请日期 |
2014.06.30 |
申请人 |
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI |
发明人 |
HIROSE, SHINJI;KURAISHI, MAMORU;ITO, TOMOYUKI;NIIMURA, KAZUHIRO;NISHIGAKI, KENJI;HATANO, JUNICHI;YAMAMOTO, SATOSHI;TSUTSUI, YUSUKE |
分类号 |
H02J7/00;G01R31/02;G01R31/327;H01M10/48;H02H3/087;H02H7/18;H03K17/00;H03K17/08;H03K17/082 |
主分类号 |
H02J7/00 |
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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