To provide a motor controller for electric power steering, capable of continuing steering assist even when an IG-OFF signal is detected, thereby continuing functions and operations in any other component as well.SOLUTION: The motor controller for electric power steering, when an ignition OFF signal is detected due to a failure in an ignition switch 31, replaces an ignition voltage value detected by an IG voltage detection section 25 with a battery voltage value to continue a steering assist, using the replaced ignition voltage value. Thus, an equivalent assist becomes possible before and after an IG failure occurs. Additionally, functions and operations in any other ECU and component using an IG signal can be continued in a vehicle safety mechanism.SELECTED DRAWING: Figure 2

    【課題】IG−OFF信号が検出された場合でも操舵アシストを継続し、他のコンポーネントにおける機能・動作も継続する電動パワーステアリング用モータ制御装置を提供する。【解決手段】イグニッションスイッチ31の故障によるイグニッションOFF信号が検出された場合、IG電圧検出部25で検出されたイグニッション電圧値をバッテリ電圧値で置き換え、置き換えられたイグニッション電圧値を使用して操舵アシストを継続する。これにより、IG故障前後で同等のアシストが可能となり、さらに、車両の安全メカニズム等においてIG信号を使用している他のECU、コンポーネントにおける機能・動作を継続できる。【選択図】図2


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    Title :

    MOTOR CONTROLLER FOR ELECTRIC POWER STEERING


    Additional title:

    電動パワーステアリング用モータ制御装置


    Contributors:

    Publication date :

    2020-10-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / 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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