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Battery control apparatus

  • US 7,015,676 B2
  • Filed: 03/18/2003
  • Issued: 03/21/2006
  • Est. Priority Date: 03/18/2002
  • Status: Active Grant
First Claim
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1. A battery control apparatus comprising:

  • a battery temperature detecting device that detects a temperature of a battery by the direct actual temperature of the battery;

    a state-of-charge determining device that determines a state of charge of the battery; and

    a battery charge-discharge control device that controls charge-discharge of the battery;

    wherein said battery charge-discharge control device functions when the temperature of the battery detected by said battery temperature detecting device is equal to or less than a predetermined temperature and the state of charge of the battery determined by said state-of-charge determining device is equal to or greater than a threshold set in advance, for repeating charge and discharge of the battery such that the state of charge varies in a range of 50–

    60%, andwhen the state of charge of the battery is less than the threshold, for repeating charge and discharge of the battery such that the state of charge varies in a range of 30–

    40%.

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