To provide a wheel type work vehicle which can suppress a control hunting caused by characteristics of a hydraulic system component.SOLUTION: A wheel type work vehicle comprises: a control valve 4 controlling a direction and a flow rate of a pressure oil supplied from a main hydraulic pump 2 to a travel hydraulic motor 3 on the basis of a travel operation pressure; and a control valve 6a generating the travel operation pressure inputted into the control valve 4. The work vehicle selectively switches between travel operation pressure control controlling the travel operation pressure and an engine revolution speed control controlling a revolution speed of an engine, on the basis of a difference between a target travel speed set by a cruise control setting switch 10 and an actual speed of a wheel shovel 201.SELECTED DRAWING: Figure 3

    【課題】油圧系コンポーネントの特性に起因する制御ハンチングを抑制することができるホイール式作業車両を提供すること。【解決手段】メイン油圧ポンプ2から走行油圧モータ3に供給される圧油の方向及び流量を走行操作圧に基づいて制御するコントロールバルブ4と、コントロールバルブ4に入力される走行操作圧を生成する制御弁6aとを備え、クルーズコントロール設定スイッチ10で設定された目標走行速度とホイールショベル201の実速度との差分に基づいて走行操作圧を制御する走行操作圧制御とエンジンの回転数を制御するエンジン回転数制御とを選択的に切り換える。【選択図】 図3


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    Title :

    WHEEL TYPE WORK VEHICLE


    Additional title:

    ホイール式作業車両


    Contributors:

    Publication date :

    2019-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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