To improve the estimation accuracy for component temperatures of electronic components included in a current control circuit in terms of an overheat protection of current control circuits that control drive current to drive loads. A component temperature estimating unit (61e2, 61g) estimates a first component temperature (Teg), which is a component temperature of a first electronic component (La) based on a current value (I1ad to I1cd) detected or estimated by a current detecting unit, a detected temperature (SdA1) detected by a temperature detection circuit 45, and estimates a second component temperature (Tee2), which is a component temperature of a second electronic component (QC2) based on the current value (I1ad to I1cd), the detected temperature (SdA1), and the first component temperature (Teg) .


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    Title :

    CURRENT CONTROL DEVICE, MOTOR CONTROL DEVICE, AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    STROMSTEUERUNGSVORRICHTUNG, MOTORSTEUERUNGSVORRICHTUNG UND ELEKTRISCHE SERVOLENKVORRICHTUNG
    DISPOSITIF DE COMMANDE DE COURANT, DISPOSITIF DE COMMANDE DE MOTEUR ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE


    Contributors:

    Publication date :

    2024-12-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge



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