Battery Controller and Voltage Abnormality Detection Method
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United States of America Patent
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Issued Date -
Mar 15, 2012
app pub date -
Aug 19, 2011
filing date -
Sep 10, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A battery controller for controlling an assembled battery configured by connecting battery groups each including battery cells, includes: voltage measuring units that are provided respectively for the battery groups each to measure a voltage of each of the battery cells included in a corresponding battery group; a minimum value detecting unit that detects a minimum value of the battery cells for each of the battery groups based upon the measured voltage of each of the battery cells; a reference value setting unit that sets a reference value used to determine an abnormal voltage drop for each of the battery groups based upon the measured voltage of each of the battery cells; and an abnormality determining unit that makes a determination that an abnormal voltage drop is present, if a difference between the reference value and the minimum value exceeds a predetermined value, for each of the battery groups.
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