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Estimation and compensation of battery measurement and asynchronization biases

  • US 9,555,718 B2
  • Filed: 12/06/2013
  • Issued: 01/31/2017
  • Est. Priority Date: 12/06/2013
  • Status: Active Grant
First Claim
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1. A vehicle comprising:

  • a traction battery including a plurality of cells; and

    at least one controller programmed to implement a state estimator configured to estimate, for each cell, a current measurement bias specific to the cell that depends on a temporal difference between current and voltage measurements for the cell, and operate the traction battery according to a state of charge derived from voltage parameters that are based on the current measurement bias.

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