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Method and system for joint battery state and parameter estimation

  • US 20060111870A1
  • Filed: 11/23/2004
  • Published: 05/25/2006
  • Est. Priority Date: 11/23/2004
  • Status: Active Grant
First Claim
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1. A method for estimating a present augmented state of an electrochemical cell system, the method comprising:

  • making an internal augmented states prediction of the cell where said augmented state comprises at least one internal state value and at least one internal parameter value;

    making an uncertainty prediction of said internal augmented states prediction;

    correcting said internal augmented states prediction and said uncertainty prediction; and

    applying an algorithm that iterates said making an internal augmented states prediction, said making an uncertainty prediction and said correcting to yield an ongoing estimation to said augmented state and an ongoing uncertainty to said augmented state estimation.

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