To drive a motor by properly estimating the angle of a motor shaft even when a motor angle detector fails.SOLUTION: A motor driving system has: a motor angle detector 40 that detects a motor angle; a current detector 20 that detects a motor current value for driving a motor 3; a vehicle inclination angle detector 90 that detects a vehicle inclination angle; a motor control circuit 10 that outputs a control signal for controlling driving of the motor 3; and a storage device 71. The storage device 71 stores data in which the motor current value, a setting value in the motor control circuit 10 for outputting the control signal, and the vehicle inclination angle at a first time are associated with the motor angle. The motor control circuit 10 controls driving of the motor 3 on the basis of information of the motor current value and the vehicle inclination angle at a second time and the data at the first time.SELECTED DRAWING: Figure 1

    【課題】モータ角度検出器が故障の場合でも、モータ軸の角度を適切に推測してモータを駆動する。【解決手段】モータ角度を検出するモータ角度検出器40と、モータ3を駆動するモータ電流値を検出する電流検出器20と、車両傾斜角を検出する車両傾斜角検出器90と、モータ3の駆動を制御する制御信号を出力するモータ制御回路10と、記憶装置71とを有し、記憶装置71は、第1の時刻における、モータ電流値、前記制御信号を出力するためのモータ制御回路10における設定値、および車両傾斜角と、モータ角度と、を関連付けたデータを記憶し、モータ制御回路10は、第2の時刻におけるモータ電流値および車両傾斜角の情報と、前記第1の時刻における前記データとに基づいて、モータ3の駆動を制御する。【選択図】図1


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    Title :

    MOTOR DRIVING SYSTEM AND MOTOR DRIVING METHOD


    Additional title:

    モータ駆動システムおよびモータ駆動方法


    Contributors:

    Publication date :

    2019-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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