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Secondary battery management system

  • US 10,491,022 B2
  • Filed: 11/20/2018
  • Issued: 11/26/2019
  • Est. Priority Date: 01/29/2016
  • Status: Active Grant
First Claim
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1. A method of managing a battery system, the battery system including at least one battery cell, at least one sensor configured to measure at least one characteristic of the battery cell, and a battery management system including a microprocessor and a memory, the method comprisingreceiving, by the battery management system, at least one measured characteristic of the at least one battery cell from the at least one sensor;

  • estimating, by the battery management system, at least one state of the at least one battery cell at a first time by applying an electrochemical-based battery model that accounts for physical parameters of a chemical composition of the at least one battery cell;

    estimating, by the battery management system, at least one physical parameter of the at least one battery cell based on the at least one measured characteristic and the estimation of the at least one state;

    estimating, by the battery management system, the at least one state of the at least one battery cell at a second time, subsequent to the first time, by applying the electrochemical-based battery model based on the estimated at least one parameter; and

    regulating by the battery management system, at least one of charging or discharging of the at least one battery cell based on the estimation of the at least one state of the at least one battery cell.

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