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Vehicle battery system balancing systems and methods

  • US 9,236,749 B2
  • Filed: 04/08/2013
  • Issued: 01/12/2016
  • Est. Priority Date: 04/08/2013
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a battery system comprising a plurality of battery sections, each section of the plurality of sections comprising a plurality of cells;

    a plurality of sensors coupled to the plurality of sections configured to measure an electrical parameter associated with each of the plurality of sections;

    a balancing system coupled to the plurality of sections configured to selectively change amounts of energy stored in the plurality of sections;

    battery control electronics communicatively coupled to the plurality of sensors and the balancing system, the battery control electronics being configured to;

    determine a state of charge of each of the plurality of sections based upon the electrical parameter,calculate a plurality of quanta of energy required for each of the plurality of battery sections to reach a charge termination level associated with a charging operation of the battery system balancing point, andcontrol the balancing system to selectively change the amounts of energy stored in the plurality of sections such that each of the plurality of quanta of energy is within a particular range.

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