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Vehicular battery temperature estimation

  • US 6,902,319 B2
  • Filed: 01/08/2004
  • Issued: 06/07/2005
  • Est. Priority Date: 10/02/2003
  • Status: Active Grant
First Claim
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1. A method of determining an internal temperature estimate of a vehicle battery comprising:

  • estimating an initial internal temperature of the battery;

    determining a heat source temperature that is indicative of a temperature of an engine block;

    determining a transfer function of airflow;

    determining an integration function of the transfer function of airflow and the heat source temperature; and

    updating a current internal temperature of the battery based on the integration function and the initial internal temperature.

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