PROBLEM TO BE SOLVED: To provide a gear change control device of a working vehicle which is easy in the adjustment of a vehicle speed at work even if performing the rotation of an engine and the rotation of a trunnion shaft of a hydraulic continuously variable transmission by using a common gear change pedal.SOLUTION: In a gear change control device of a working vehicle having a hydraulic continuously variable transmission which gear-changes power inputted from an engine by changing an angle of a trunnion shaft, and outputting it, the gear change control device comprises a pedal position detection part which detects a pedal position corresponding to a pedal-in amount of a gear change pedal, and a control part which controls a rotation number of the engine and the angle of the trunnion shaft of the hydraulic continuously variable transmission on the basis of a detection value of the pedal position detection part. The control device has an engine rotation number adjusting mode which makes a pedal-in operation of the gear change pedal change the rotation number of the engine without changing the angle of the trunnion shaft of the hydraulic continuously variable transmission.SELECTED DRAWING: Figure 4B

    【課題】エンジンの回転と油圧無段変速装置のトラニオン軸の回転とを共通の変速ペダルで行う場合であっても、作業時における車速調整が容易な作業車両の変速制御装置を提供する。【解決手段】トラニオン軸角度を変更することにより、エンジンから入力された動力を変速して出力する油圧無段変速装置を有する作業車両の変速制御装置において、変速ペダルの踏込量に応じたぺダル位置を検出するペダル位置検出部と、ペダル位置検出部の検出値に基づき、エンジンの回転数および油圧無段変速装置のトラニオン軸角度を制御する制御部とを備え、制御部は、変速ペダルの踏込操作に対し、前記油圧無段変速装置のトラニオン軸角度は変化させず、前記エンジンの回転数は変化させるエンジン回転数調整モードを有する。【選択図】図4B


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    Title :

    GEAR CHANGE CONTROL DEVICE OF WORKING VEHICLE


    Additional title:

    作業車両の変速制御装置


    Contributors:

    Publication date :

    2016-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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