Battery monitoring system

  • US 7,619,417 B2
  • Filed: 12/14/2006
  • Issued: 11/17/2009
  • Est. Priority Date: 12/31/2002
  • Status: Active Grant
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First Claim
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1. A method of monitoring a battery comprising:

  • (a) measuring a voltage of the battery;

    (b) measuring a current of the battery;

    (c) measuring a dynamic parameter of the battery;

    (d) obtaining a temperature of the battery;

    (e) determining an operational condition of the battery, independently of a current state of the battery by projecting the battery to standard conditions, as a function of the battery voltage, the battery current, the dynamic parameter of the battery and the battery temperature; and

    (f) repeating steps (a) through (e) iteratively, and outputting battery condition information at the end of each iteration,wherein projecting the battery to standard conditions comprises compensating the battery to full charge.

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