PROBLEM TO BE SOLVED: To provide a power steering device capable of detecting an abnormality of the device without adding a sensor for detection of the abnormality, and a control circuit of the power steering device.SOLUTION: In a power steering device including a rack bar formed of a ferrous metal material, and a ball screw mechanism composed using a ferrous metal material, a control unit 6 includes a rust detection part (an abnormality detection circuit) 31. Based on the number of revolutions of a motor, torsion bar torque, and a steering angle (a steering angular speed found from the steering angle), the rust detection part 31 detects an abnormality attributed to the generation of rust in the ball screw mechanism, specifically, a catching feeling in a steering operation due to a periodic change in an operation load of the ball screw mechanism.SELECTED DRAWING: Figure 4

    【課題】異常検出のためのセンサを追加することなく装置の異常を検出できるパワーステアリング装置およびパワーステアリング装置の制御回路を提供する。【解決手段】鉄系金属材料で形成されたラックバーと、鉄系金属材料を用いて構成されたボールねじ機構とを有するパワーステアリング装置において、コントロールユニット6は、錆検出部(異常検出回路)31を有し、錆検出部31は、モータ回転数、トーションバートルクおよび舵角(舵角から求まる舵角速度)に基づき、ボールねじ機構において錆の発生に起因する異常、具体的には、ボールねじ機構の作動負荷の周期的な変化に伴う操舵の引っ掛かりを検出する。【選択図】図4


    Access

    Download


    Export, share and cite



    Title :

    POWER STEERING DEVICE AND CONTROL CIRCUIT OF POWER STEERING DEVICE


    Additional title:

    パワーステアリング装置およびパワーステアリング装置の制御回路


    Contributors:
    SASAKI MITSUO (author) / GOTO MAKOTO (author)

    Publication date :

    2016-04-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    POWER STEERING DEVICE, AND POWER-STEERING-DEVICE CONTROL CIRCUIT

    SASAKI MITSUO / GOTO MAKOTO | European Patent Office | 2016

    Free access

    POWER STEERING DEVICE AND POWER-STEERING-DEVICE CONTROL CIRCUIT

    SASAKI MITSUO / GOTO MAKOTO | European Patent Office | 2017

    Free access


    Steering control device and power steering device

    ISHIMURA HIROYUKI / ENDO SHUJI / SUN HANYU | European Patent Office | 2024

    Free access

    POWER STEERING DEVICE AND POWER STEERING DEVICE CONTROL DEVICE

    SASAKI MITSUO / HISAZUMI TAKUMI | European Patent Office | 2015

    Free access