Hybrid and electric vehicle battery pack maintenance device

  • US 10,046,649 B2
  • Filed: 03/14/2013
  • Issued: 08/14/2018
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
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First Claim
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1. A maintenance device for coupling to an electric vehicle and performing maintenance on an electrical system of the electric vehicle, comprising:

  • a device housing;

    a controller in the housing configured to control operation of the maintenance device;

    a controllable load having a load size which is controlled by the controller;

    low voltage input/output circuitry coupled to the controller;

    a bus outside of the housing coupled to the low voltage input/output circuitry;

    a low voltage junction box coupled to the bus outside of the housing, the junction box having a databus connection configured to couple to a databus of the electric vehicle to thereby receive outputs from sensors of the electric vehicle and communicate with a controller of the electric vehicle; and

    a high voltage junction box having a high voltage connection configured to couple the controllable load to a high voltage battery pack of the electrical system of the vehicle.

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