PROBLEM TO BE SOLVED: To provide a hydraulic steering device which allows an operator to feel a reaction force according to a steering state from an operation member.SOLUTION: A hydraulic steering device includes: a hydraulic cylinder for oscillating a front vehicle body with respect to a rear vehicle body according to an operation amount of a steering wheel; a steering angle sensor 6 for acquiring a steering angle of a steering shaft connected to the steering wheel; and a reaction force application device for applying a reaction force with respect to the steering shaft in the opposite direction from the steering direction. The reaction force application device includes: an electric motor 31 for applying the reaction force to the steering shaft; and a target reaction force determination part 41 for determining a target current of the reaction force applied to the steering shaft, based on the steering angle acquired by the steering angle sensor 6. The electric motor 31 is controlled based on the target current.SELECTED DRAWING: Figure 3

    【課題】操縦者が操作部材から操舵状態に応じた反力を感じることができる油圧式ステアリング装置を提供する。【解決手段】油圧式ステアリング装置は、ステアリングホイールの操作量に応じて前部車体を後部車体に対して揺動させる油圧シリンダと、ステアリングホイールに連結されたステアリングシャフトの操舵角を取得する操舵角センサ6と、ステアリングシャフトに対して操舵方向とは反対の方向に反力を付与する反力付与装置と、を備え、反力付与装置は、ステアリングシャフトに反力を付与する電動モータ31と、操舵角センサ6によって取得された操舵角に基づいて、ステアリングシャフトに付与する反力の目標電流Iを決定する目標反力決定部41と、を有し、電動モータ31は、目標電流Iに基づいて制御される。【選択図】図3


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    Title :

    HYDRAULIC STEERING DEVICE


    Additional title:

    油圧式ステアリング装置


    Contributors:

    Publication date :

    2017-02-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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