PROBLEM TO BE SOLVED: To provide an electric power steering device for improving the reliability of the driver of a three-phase synchronous motor, without increasing the cost of a driver.SOLUTION: A controller of an electric power steering device for controlling an electric power steering device, where a three-phase synchronous motor is used as steering assistance, includes a rotational position estimation unit for estimating the position of the rotor of the three-phase synchronous motor, based on the neutral point potential or the virtual neutral point potential of the three-phase synchronous motor, and a command signal calculation unit for calculating a command signal of the three-phase synchronous motor, based on the position of the rotor estimated by the rotational position estimation unit.SELECTED DRAWING: Figure 1

    【課題】本発明の目的は、駆動装置のコストを増大することなく、三相同期電動機の駆動装置の信頼性を向上させる電動パワーステアリング装置を提供することにある。【解決手段】本発明に係る電動パワーステアリング装置の制御装置は、操舵の補助力として三相同期電動機が用いられる電動パワーステアリング装置を制御する制御装置であって、前記三相同期電動機の中性点電位または仮想中性点電位に基づき前記三相同期電動機の回転子の位置を推定する回転位置推定部と、前記回転位置推定部によって推定された前記回転子の位置に基づき前記三相同期電動機の指令信号を演算する指令信号演算部と、を備えることを特徴とする。【選択図】図1


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    Title :

    CONTROLLER OF ELECTRIC POWER STEERING DEVICE AND ELECTRIC POWER STEERING DEVICE


    Additional title:

    電動パワーステアリング装置の制御装置及び電動パワーステアリング装置


    Contributors:

    Publication date :

    2017-01-19


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge



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