PROBLEM TO BE SOLVED: To allow for detection of problems in the rotation sensor of a motor used for estimating the current speed.SOLUTION: A motor drive controller has (A) a measurement unit for receiving a periodic signal, that can be divided into a plurality of phases depending on the rotational phase of a motor, from the rotation sensor of the motor, and measuring the time of each of the plurality of phases, and (B) a determination unit for comparing the mean time of one phase obtained from the time of one period of a signal with the mean or weighted mean of the time of some of the plurality of phases, and the time of a corresponding phase of the signal one period before the some phase, by using the time of each of the plurality of phases measured by the measurement unit, and outputting an error of the rotation sensor when predetermined conditions are satisfied.

    【課題】現在速度を推定する際に用いられるモータの回転センサにおける不具合を検出できるようにする。【解決手段】本モータ駆動制御装置は、(A)モータの回転センサから受信し且つ当該モータの回転位相に応じて複数のフェーズに分割可能である周期的な信号を受信して、複数のフェーズの各々について時間を計測する計測部と、(B)計測部により計測された複数のフェーズの各々についての時間を用いて、信号の1周期分の時間から求められる1フェーズ分の平均時間と、複数のフェーズのうちのあるフェーズの時間と当該あるフェーズから上記信号の1周期前の対応するフェーズの時間との平均又は加重平均とを比較して、所定の条件を満たす場合に回転センサのエラーを出力する判定部とを有する。【選択図】図2


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    Title :

    MOTOR CONTROLLER AND CONTROLLER


    Additional title:

    モータ制御装置及び制御装置


    Contributors:

    Publication date :

    2015-09-24


    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 / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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