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Power supply device, electrically-driven vehicle incorporating power supply device, and method of controlling power supply device

  • US 7,773,353 B2
  • Filed: 02/01/2007
  • Issued: 08/10/2010
  • Est. Priority Date: 02/03/2006
  • Status: Expired due to Fees
First Claim
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1. A power supply device incorporated in an electrically-driven vehicle, comprising:

  • a power storage device;

    an electric power conversion device configured to allow at least one of power feeding from said power storage device to a load external to the vehicle and charging from said load to said power storage device to be performed; and

    detection means for detecting a decrease in insulation resistance of the power supply device,said detection means, when said load is connected to said electric power conversion device, setting a determination threshold value for detecting the decrease in said insulation resistance to a value lower than the determination threshold value in a non-connected state of said load to said electric power conversion device.

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