Method and system for joint battery state and parameter estimation
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United States of America Patent
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Sep 22, 2009
Grant Date -
May 25, 2006
app pub date -
Nov 23, 2004
filing date -
Nov 23, 2004
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Abstract
A method and apparatus for estimation of the augmented state of an electrochemical cell, the method comprising: making an internal augmented states prediction of the cell where the augmented state comprises at least one internal state value and at least one internal parameter value; making an uncertainty prediction of the internal augmented states prediction; correcting the internal augmented states prediction and the uncertainty prediction; and applying an algorithm that iterates the making an internal augmented states prediction, the making an uncertainty prediction and the correcting to yield an ongoing estimation to the augmented state and an ongoing uncertainty to the augmented state estimation.
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