PROBLEM TO BE SOLVED: To specify and detect which of first output means and second output means is failed when a failure that either a first output value or a second output value is fixed to a specific level occurs.SOLUTION: An electric power steering device includes: first output means for outputting a first output value which is a value according to torsion amount of a torsion bar; second output means for outputting a second output value which is a value according to the torsion amount of the torsion bar and has a negative correlation relationship with the first output value; and failure detection means for specifying and detecting which of the first output means and the second output means is failed when a relation between the first output value and the second output value becomes within predetermined ranges A to D.SELECTED DRAWING: Figure 11

    【課題】第1出力値および第2出力値の何れか一方が一定のレベルに固定される故障が生じたときに、第1の出力手段および第2の出力手段の何れが故障であるかを特定して検知することができる。【解決手段】トーションバーの捩れ量に応じた値である第1出力値を出力する第1の出力手段と、トーションバーの捩れ量に応じた値であって、第1出力値に対し負の相関関係となる第2出力値を出力する第2の出力手段と、第1出力値と第2出力値との関係が予め定められた範囲内A〜Dとなったときに、第1の出力手段および第2の出力手段の何れが故障であるかを特定して検出する故障検出手段と、を備えることを特徴とする電動パワーステアリング装置。【選択図】図11


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    Title :

    ELECTRIC POWER STEERING DEVICE AND FAILURE DETECTION DEVICE


    Additional title:

    電動パワーステアリング装置および故障検出装置


    Contributors:

    Publication date :

    2016-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B62D MOTOR VEHICLES , Motorfahrzeuge



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