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Cooling Device, Control Method of Cooling Device, and Abnormality Specification Method

  • US 20080109129A1
  • Filed: 03/10/2006
  • Published: 05/08/2008
  • Est. Priority Date: 03/11/2005
  • Status: Active Grant
First Claim
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1. A cooling device that supplies a flow of cooling oil to cool down a motor mounted on a vehicle and driven to output driving power,said cooling device comprising:

  • a heat exchange unit that cools down the flow of cooling oil through heat exchange with outside air;

    a pressure feed unit that is provided in a cooling oil circulation path formed between the motor and the heat exchange unit to pressure feed the flow of cooling oil and circulate the flow of cooling oil through the cooling oil circulation path;

    a motor temperature measurement unit that measures temperature of the motor; and

    a start control module that performs a start-up control for a start of the pressure feed unit at a rise in measured temperature of the motor to a preset starting temperature and, in the event of a failed start-up of the pressure feed unit, repeats the start-up control up to a predetermined number of times at every rise in measured temperature of the motor to one of multiple different temperatures, which are higher than the preset starting temperature, until a successful start-up of the pressure feed unit.

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