Automatic crash battery discharge method
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United States of America Patent
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Jun 16, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 31, 2011
filing date -
Oct 31, 2011
priority date (Note) -
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Abstract
A system and method for discharging a vehicle battery following a vehicle damaging event. The method includes determining that the vehicle has been involved in the vehicle damaging event and then discharging cells in the battery to a predetermined cell voltage based on the severity of the vehicle damaging event. The battery cells can be discharged by resistors that are already existing in the vehicle battery for cell balancing purposes, or by resistors that have been added for the cell discharge purposes. The voltage of the cells are monitored when they are being dissipated, and once the particular voltage of a cell has reached the desired voltage, then a switch is opened to disconnect the resistor from the cell.
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