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Battery temperature control system

  • US 8,575,897 B2
  • Filed: 10/02/2009
  • Issued: 11/05/2013
  • Est. Priority Date: 10/03/2008
  • Status: Active Grant
First Claim
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1. A battery temperature control system that carries out temperature rise control to raise temperature of a battery mounted in a vehicle by internal heating due to charging and/or discharging of the battery, the battery temperature control system comprising:

  • current detecting means for detecting a current of the battery;

    voltage detecting means for detecting a voltage of the battery;

    temperature detecting means for detecting a temperature of the battery;

    maximum chargeable/dischargeable current setting means for setting a maximum chargeable current and a maximum dischargeable current based on the detected current, voltage, and temperature of the battery; and

    temperature rise controlling means for controlling charging/discharging power so that the current of the battery does not exceed the maximum chargeable current or the maximum dischargeable current thereby to raise the temperature of the battery;

    whereinthe temperature rise controlling means compares the maximum chargeable current and the maximum dischargeable current with each other, selects the current larger in absolute value, and controls the charging/discharging power thereby to attain the selected current.

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