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Method and device for testing a traction battery of an electric vehicle

  • US 9,987,928 B2
  • Filed: 11/24/2014
  • Issued: 06/05/2018
  • Est. Priority Date: 11/29/2013
  • Status: Active Grant
First Claim
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1. A method for testing a traction battery of an electric vehicle, which battery is both chargeable and dischargeable, the method comprising:

  • electrically coupling a mobile testing apparatus that is separate from the electric vehicle to the traction battery of the electric vehicle via a first mobile testing apparatus interface;

    generating a control command in the mobile testing apparatus for initiating a discharging process of the traction battery;

    monitoring the discharging process of the traction battery;

    determining at least one characteristic quantity of the traction battery depending on the monitored discharging process; and

    generating a supply voltage from a supply circuit of the mobile testing apparatus for at least one element of the mobile testing apparatus from an energy flow which, during the discharging process, flows via the first mobile testing apparatus interface to the supply circuit of the mobile testing apparatus.

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