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Calculation of state of charge offset using a closed integral method

  • US 20060022643A1
  • Filed: 07/30/2004
  • Published: 02/02/2006
  • Est. Priority Date: 07/30/2004
  • Status: Active Grant
First Claim
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1. A method of calculating an accurate state of charge of a battery installed in an electric vehicle comprising the step of:

  • using an estimated average battery state of charge for the battery based on a long-term average open circuit battery voltage to check for accuracy of a measured state of charge based on current flowing into and out of the battery.

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