A hydro-pneumatic suspension system 10 and a method for an off-road vehicle are provided. The suspension system 10 is operable with a hydraulic cylinder 50 defining a piston side 52 and a rod side 56 configured to receive fluid from a pump 12. The suspension system 10 comprises: a proportional rod control valve 26; a piston control valve 24; a pilot operated check valve 66; a blocking valve 60; and a controller 40 configured to control a stiffness of the suspension system to maintain a target natural frequency for the vehicle.


    Access

    Download


    Export, share and cite



    Title :

    Systems and methods for hydro-pneumatic suspension and leveling circuit


    Contributors:
    DAVID JOYCE (author)

    Publication date :

    2023-02-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / 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



    Suspension valve group, hydro-pneumatic suspension lifting and leveling system and all-terrain crane

    ZHANG JINXING / MA YUNWANG / YU ZHONGTAI et al. | European Patent Office | 2024

    Free access

    Hydro-pneumatic suspension module, hydro-pneumatic suspension system and vehicle

    WU YONGCHUANG / GUO KUN | European Patent Office | 2020

    Free access

    Hydro-pneumatic suspension control valve and hydro-pneumatic suspension hydraulic control system

    ZHANG JIANJUN / LI WU / FANG JIEPING | European Patent Office | 2022

    Free access

    Oil pressure variable-frequency hydro-pneumatic suspension system and variable-frequency leveling control method

    XIANG XIAOLONG / FU CHANG / WANG LONG et al. | European Patent Office | 2024

    Free access

    Citroen hydro-pneumatic suspension

    Engineering Index Backfile | 1955