State of charge algorithm for a battery
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United States of America Patent
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Mar 12, 2002
Grant Date -
N/A
app pub date -
Feb 7, 2001
filing date -
Feb 7, 2001
priority date (Note) -
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Abstract
A method and apparatus for determining the state of charge of a battery including the steps of determining whether the battery is in a charge decreasing, sustaining or increasing mode, integrating the charge going in and out of the battery to determine a current-based state of charge measurement if the battery is in a charge increasing or sustaining mode, and determining the open circuit voltage to determine an open circuit-based state of charge measurement if the battery is in a charge decreasing mode.
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