The invention discloses a mechanical-hydraulic servo control device for multi-shaft automobile pure rolling steering. The mechanical-hydraulic servo control device is applied to the field of automobile steering. The mechanical-hydraulic servo control device mainly comprises a switch valve, a pressure reducing valve, a one-way valve, a transverse pull rod telescoping cylinder, a mechanical-hydraulic servo control valve, an angular displacement amplifying mechanism and the like. The mechanical-hydraulic servo control valve is used for carrying out servo control over the transverse pull rod telescoping cylinder, and it is effectively ensured that all steering wheels meet the Ackerman steering condition; by means of negative feedback control of the transverse pull rod telescoping cylinder and the mechanical-hydraulic servo control valve, high-precision dynamic pure rolling steering of an automobile is achieved; oil is supplemented to a feedback cavity automatically through the switch valve, the pressure reducing valve and the one-way valve, and generation of negative pressure is eliminated. Preferably, by means of a segmented multi-stage cam curve in the mechanical-hydraulic servo control device, the transverse pull rod telescoping cylinder can be locked mechanically and hydraulically, the risk in the high-speed traveling process is reduced while the pure rolling steering effect of the system is guaranteed, and the safety of high-speed traveling of the multi-shaft automobile is promoted.


    Access

    Download


    Export, share and cite



    Title :

    Mechanical-hydraulic servo control device for multi-shaft automobile pure rolling steering


    Contributors:
    DU HENG (author) / HUANG BIN (author)

    Publication date :

    2015-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    Automobile steering intermediate shaft

    SHEN FENGZHE | European Patent Office | 2020

    Free access

    Multi-Axle Electro-Hydraulic Control Steering System Based on Servo Solenoid Valve

    Du, Heng ;Wei, Jian Hua ;Hu, Bo | Trans Tech Publications | 2012


    Angle-adjustable automobile steering shaft

    ZHU MIAOLING | European Patent Office | 2021

    Free access

    Steering shaft device of three-wheel automobile

    CHEN RUIWU | European Patent Office | 2015

    Free access

    Multi-Axle Electro-Hydraulic Control Steering System Based on Servo Solenoid Valve

    Du, Heng / Wei, Jian-Hua / Hu, Bo et al. | Tema Archive | 2012