PROBLEM TO BE SOLVED: To provide a hydraulic travel drive vehicle capable of reducing shock generated when the vehicle performs power running again while restricting complex formation of a system and also restricting its increased cost.SOLUTION: This invention comprises a variable capacity hydraulic pump 3 driven by a motor 2; a variable capacity hydraulic motor 4 driven by oil discharged out of the variable capacity hydraulic pump 3; and running wheels 5 driven by the variable capacity hydraulic motor 4. When its driving state is changed over from the power running state to free-wheeling state, this invention performs a free-wheeling control for gradually decreasing a discharging amount of the variable capacity hydraulic pump 3, a capacity of the variable capacity hydraulic motor 4 and a revolving speed of the motor 2, and in turn when its driving state is changed over from the free-wheeling state to the power running state, this invention performs to control the power running for gradually increasing the discharging amount of the variable capacity hydraulic pump 3, the capacity of the variable capacity hydraulic motor 4 and the revolving speed of the motor 2.SELECTED DRAWING: Figure 1

    【課題】システムの複雑化やコストアップを抑制しつつ再力行の際に発生するショックを低減することができる、油圧走行駆動車両を提供する。【解決手段】原動機2によって駆動される可変容量油圧ポンプ3と、可変容量油圧ポンプ3から吐出されるオイルによって駆動される可変容量油圧モータ4と、可変容量油圧モータ4によって駆動される走行用車輪5と、を備え、運転状態を力行状態から惰行状態に切り換える際に、可変容量油圧ポンプ3の吐出量、可変容量油圧モータ4の容量及び原動機2の回転速度を漸減させる惰行制御を行い、運転状態を惰行状態から力行状態に切り換える際に、可変容量油圧ポンプ3の吐出量、可変容量油圧モータ4の容量、原動機2の回転速度を漸増させる再力行制御を行う。【選択図】図1


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    Title :

    HYDRAULIC TRAVEL DRIVE VEHICLE


    Additional title:

    油圧走行駆動車両


    Contributors:

    Publication date :

    2016-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / 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



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