PROBLEM TO BE SOLVED: To provide a technique to detect which one of plural gear mechanisms provided in an electric actuator has a failure due to adhesion or the like.SOLUTION: A failure detection mechanism (100) for an electric actuator and/or an electric actuator (1) includes: a first gear mechanism (10) connected to a first motor (11); a second gear mechanism (20) connected to a second motor (21); an output section (30) capable of rotating at a speed produced by adding together a rotation speed based on the first gear mechanism (10) and a rotation speed based on the second gear mechanism (20); a first sensor (71) configured to detect a value of electric current driving the first motor (11) or a value associated with the value of the electric current; a second sensor (72) configured to detect a value of electric current driving the second motor (21) or a value associated with the value of the electric current; and a comparison unit (53) configured to determine a failure on the basis of a result of comparison between a first detected value by the first sensor (71) and a second detected value by the second sensor (72).SELECTED DRAWING: Figure 1

    【課題】電動アクチュエータが備える複数の歯車機構のうちの何れの歯車機構において固着などによる故障が生じているかを検知する技術を提供することを目的とする。【解決手段】電動アクチュエータの故障検知機構(100)及び/又は電動アクチュエータ(1)は、第1モータ(11)側に接続された第1歯車機構(10)と、第2モータ(21)側に接続された第2歯車機構(20)と、第1歯車機構(10)に基づく回転速度と第2歯車機構(20)に基づく回転速度とが加算された速度で回転可能な出力部(30)と、第1モータ(11)を駆動する電流値又はこの電流値と相関する値を検知する第1センサ(71)と、第2モータ(21)を駆動する電流値又はこの電流値と相関する値を検知する第2センサ(72)と、第1センサ(71)による第1検知値と第2センサ(72)による第2検知値との比較結果に基づいて故障を判定する比較部(53)と、を備える。【選択図】図1


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    Titel :

    FAILURE DETECTION MECHANISM FOR ELECTRIC ACTUATOR, AND ELECTRIC ACTUATOR HAVING THE SAME


    Weitere Titelangaben:

    電動アクチュエータの故障検知機構および電動アクチュエータの故障検知機構を備えた電動アクチュエータ


    Beteiligte:
    YASUI TSUTOMU (Autor:in)

    Erscheinungsdatum :

    12.08.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16H Getriebe , GEARING / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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