Insulation resistance measuring device and method capable of rapidly measuring insulation resistance
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United States of America Patent
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Sep 4, 2018
Grant Date -
Jan 19, 2017
app pub date -
Oct 2, 2015
filing date -
Oct 2, 2014
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Abstract
An insulation resistance measuring device including a positive electrode test resistor connected to a positive electrode node of a battery assembly, a negative electrode test resistor connected to a negative electrode node of the battery assembly, a first switch connecting the positive electrode node of the battery assembly to the positive electrode test resistor, a second switch connecting the negative electrode node of the battery assembly to the negative electrode test resistor, a voltage measurement unit that measures a first voltage applied to the positive electrode test resistor and a second voltage applied to the negative electrode test resistor, and a voltage estimation unit that estimates a final convergence value of the first and second voltages.
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