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Battery pack with integrated battery management system

  • US 9,923,247 B2
  • Filed: 09/11/2015
  • Issued: 03/20/2018
  • Est. Priority Date: 09/11/2015
  • Status: Active Grant
First Claim
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1. A battery pack comprising:

  • a plurality of battery modules;

    a balancing charger configured to add energy to the plurality of battery modules; and

    a battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network,wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and is configured to remove energy from the battery module it is mounted on, and wherein each of the plurality of daisy-chained battery module controllers comprises;

    a first terminal coupled to a positive terminal of the battery module that the battery module controller is mounted on;

    a second terminal coupled to a negative terminal of the battery module that the battery module controller is mounted on; and

    a shunt resistor configured to be selectively applied across the first and second terminals to discharge energy of the battery module that the battery module controller is mounted on.

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