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METHOD FOR CONTROLLING CHARGING VOLTAGE OF 12V AUXILIARY BATTERY FOR HYBRID VEHICLE

  • US 20110133694A1
  • Filed: 11/08/2010
  • Published: 06/09/2011
  • Est. Priority Date: 12/04/2009
  • Status: Active Grant
First Claim
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1. A method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, the method comprising:

  • comparing the outside air temperature with a boundary temperature after the vehicle is started;

    if the outside air temperature is lower than the boundary temperature, measuring the voltage of a 12V auxiliary battery; and

    if the voltage of the 12V auxiliary battery is beyond a predetermined reference voltage range, increasing the output voltage at a DC-DC converter.

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