Battery tester for electric vehicle

  • US 8,306,690 B2
  • Filed: 07/17/2008
  • Issued: 11/06/2012
  • Est. Priority Date: 07/17/2007
  • Status: Active Grant
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First Claim
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1. A method of testing an electrical system of an electric vehicle, comprising:

  • operating the electric vehicle;

    coupling to a databus of the electric vehicle;

    monitoring data on the data bus and retrieving information related to current flowing into the electrical system of the electric vehicle during the step of operating;

    monitoring data on the databus and retrieving information related to a voltage of the electrical system during the step of operating;

    diagnosing the electric vehicle based upon the monitored current and the monitored voltage; and

    wherein diagnosing the electric vehicle includes compensating for a time difference between retrieving information related to current flowing into the system and retrieving information related to a voltage of the system.

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