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SYSTEM FOR COOLING VEHICLE-MOUNTED POWER CONTROL DEVICE AND METHOD FOR DIAGNOSING ABNORMALITY

  • US 20150232087A1
  • Filed: 10/08/2013
  • Published: 08/20/2015
  • Est. Priority Date: 10/12/2012
  • Status: Active Grant
First Claim
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1. A system for cooling a power control device of a hybrid vehicle including an engine and a rotating electrical machine, the system comprising:

  • a cooling device for cooling the power control device;

    an electronic control device for controlling the cooling device; and

    an intake temperature sensor that is arranged in an intake passage of the engine and detects an intake temperature, whereinthe electronic control device is configured to determine whether the vehicle is in a reference traveling state in which an intake amount to the engine is ensured to be greater than or equal to a reference intake amount,when determining that the vehicle is in the reference traveling state, the electronic control device is configured to determine presence or absence of abnormality in the cooling device by using an intake temperature detected by the intake temperature sensor, andwhen determining that the vehicle is not in the reference traveling state, the electronic control device is configured to refrain from determining presence or absence of abnormality in the cooling device.

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