Method for determination of the charge drawn by an energy storage battery

  • US 7,375,495 B2
  • Filed: 11/12/2003
  • Issued: 05/20/2008
  • Est. Priority Date: 11/14/2002
  • Status: Expired due to Fees
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First Claim
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1. A monitoring device for energy storage batteries comprising:

  • a device for measuring battery temperature; and

    a computation device for determining the charge drawn by an energy storage battery starting from an initial state of charge at the start of the drawing of the charge;

    wherein the computation device is designed to carry out a method comprising;

    determining the charge drawn utilizing an exponential function from the start of the drawing of the charge, wherein the exponential function includes a time constant defined at least as a function of the energy storage battery type and of the temperature of the electrolyte measured by the device for measuring battery temperature.

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