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METHOD FOR MANAGING AND DIAGNOSING A BATTERY

  • US 20150177333A1
  • Filed: 08/06/2013
  • Published: 06/25/2015
  • Est. Priority Date: 08/06/2012
  • Status: Abandoned Application
First Claim
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1. A method for managing a battery, comprising:

  • discharging the battery to a full discharge level (E1) and measuring the temperature Tfindch of the battery (E2) when the full discharge level is reached; and

    charging the battery to a full charge level (E3) and measuring the temperature Tfinch of the battery (E4) when the full charge level is reached,these two steps of charging then discharging or charging then discharging being consecutive; and

    calculating the inaccessible charge quantity Qdch(Tfindch) at the end-of-discharge temperature Tfindch following the step of discharging to a level of full discharge of the battery, knowing the relation giving the inaccessible charge quantity Qdch(T) of the battery as a function of the temperature T, andcalculating the maximum admissible charge quantity Qch(Tfinch) of the battery at the end-of-charge temperature Tfinch, by the relation Qch(Tfinch)=qch+Qdch(Tfindch), where qch corresponds to the quantity of charges transmitted to or released by the battery to change from a full discharge level to a full charge level or vice versa.

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