A diagnostic device for a current sensor disclosed herein may include an AC power calculation unit, a DC power calculation unit, and a determination unit. The AC power calculation unit may be configured to calculate AC power outputted from the inverter based on a measurement value measured by the current sensor. The DC power calculation unit may be configured to calculate DC power outputted from a DC power source that supplies power to the inverter. The determination unit may be configured to output a signal for notifying occurrence of an abnormality of the current sensor in a case where a difference between the calculated AC power and the calculated DC power is larger than a predetermined threshold.


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    Title :

    Diagnostic device for current sensor


    Contributors:
    IWATA SHUICHI (author) / JOJIMA YUKI (author)

    Publication date :

    2020-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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