To provide a motor control device capable of performing fail-safe control in an event of an error in an arithmetic processing unit.SOLUTION: The motor control device includes a motor drive circuit 100 with an upper arm 110 and a lower arm 120, an arithmetic processing device 300 that controls the motor drive circuit, an alternative circuit 500 that replaces the arithmetic processing device, and a mode switching unit 800 that switches the control mode between a first control mode in which the arithmetic processing device controls the motor drive circuit and a second control mode in which the alternative circuit controls the motor drive circuit on the basis of the state of the arithmetic processing device. The mode switching unit switches the control mode from a first control mode to a second control mode when the state of the arithmetic processing device changes from a normal state to an abnormal state. In the second control mode, the alternative circuit controls the switching of a switching element included in the upper and lower arms on the basis of the status of the upper and lower arms.SELECTED DRAWING: Figure 2

    【課題】演算処理装置の異常発生時にフェイルセーフ制御を実行可能なモータ制御装置を提供する。【解決手段】上側アーム110及び下側アーム120を有するモータ駆動回路と、モータ駆動回路100を制御する演算処理装置300と、演算処理装置を代替する代替回路500と、演算処理装置の状態に基づいて、演算処理装置がモータ駆動回路を制御する第1制御モードと、代替回路がモータ駆動回路を制御する第2制御モードとの間で制御モードを切り替えるモード切替部800と、を備える。モード切替部は、演算処理装置の状態が正常状態から異常状態に変化したときに、制御モードを第1制御モードから第2制御モードに切り替える。第2制御モードにおいて代替回路は、上側アーム及び下側アームの状態に基づいて、上側アーム及び下側アームに含まれるスイッチング素子の切り替えを制御する。【選択図】図2


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    Title :

    MOTOR CONTROL DEVICE, MOTOR UNIT, AND VEHICLE


    Additional title:

    モータ制御装置、モータユニット、及び車両


    Contributors:

    Publication date :

    2022-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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