A control device controls a hydrostatic transmission vehicle having a hydrostatic transmission including a variable displacement pump and a variable displacement hydraulic motor. The control device is configured to set a set vehicle speed based on a forward/rearward travel command and a gear stage command instructed by an operator, to set a torque limit usable for the hydrostatic transmission based on an engine speed, to set a vehicle speed limit based on a pressure in the hydraulic circuit and the torque limit, to select a lower one of the set vehicle speed and the vehicle speed limit, and to control respective displacements of the variable displacement pump and the variable displacement hydraulic motor based on the selected vehicle speed.


    Access

    Download


    Export, share and cite



    Title :

    Control device for hydrostatic transmission vehicle


    Contributors:

    Publication date :

    2015-07-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / 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 / E02F Baggern , DREDGING / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / F16H Getriebe , GEARING / F17D Rohrleitungssysteme , PIPE-LINE SYSTEMS



    Vehicle with hydrostatic transmission

    HEATHCOAT DAVID MARK / MADDY GALE | European Patent Office | 2017

    Free access

    Vehicle with Hydrostatic Transmission

    HEATHCOAT DAVID MARK / MADDY GALE | European Patent Office | 2015

    Free access

    HYDROSTATIC TRANSMISSION FOR A VEHICLE

    VOLLER GORDON PAUL / DODSON HENRY / LAIRD STEPHEN MICHAEL | European Patent Office | 2022

    Free access

    HYDROSTATIC TRANSMISSION FOR CONSTRUCTION VEHICLE

    ENKILI GANESHKUMAR E S | European Patent Office | 2016

    Free access

    Hydrostatic transmission control system

    European Patent Office | 2023

    Free access