An ECU executes a program including the steps of: obtaining a first temperature Ta of a first semiconductor element; obtaining a second temperature Tb of a third semiconductor element; determining that it is in a normal state in which clogging has not occurred, when a rotating speed Nm2 of a second MG is more than a threshold value Nm2 and the magnitude of a difference between the first temperature Ta and the second temperature Tb is less than a threshold value ΔT; and determining that the clogging of a foreign matter has occurred in a predetermined site when the magnitude of the difference between the first temperature Ta and the second temperature Tb is equal to or more than the threshold value ΔT.


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    Title :

    Malfunction detecting device and malfunction detecting method for cooling device


    Contributors:

    Publication date :

    2015-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01K MEASURING TEMPERATURE , Messen der Temperatur / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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