The invention provides a hydraulic bushing for vehicle body suspension. The hydraulic bushing comprises an upper soft cushion and a lower soft cushion, the upper soft cushion and the lower soft cushion are connected in an up-down matched mode, the lower soft cushion comprises a main spring assembly, the main spring assembly comprises a first cavity, a second cavity and a runner, the first cavity and the second cavity are different in rigidity, the runner is communicated with the first cavity and the second cavity, the first cavity and the second cavity are sequentially arranged in the axial direction of the main spring assembly, the first cavity is arranged on the upper side of the second cavity, the first cavity serves as a working cavity to participate in stress, and the second cavity serves as a working cavity to participate in stress. The first cavity, the second cavity and the flow channel are filled with liquid, and the liquid flows in the first cavity, the second cavity and the flow channel through positive pressure or negative pressure formed by stress of the first cavity. The first cavity is a single working cavity, and the second cavity and the flow channel between the first cavity and the second cavity are arranged, so that high damping and high dynamic stiffness are provided for a vehicle body when the vehicle body is at low frequency and large amplitude; under the conditions of high frequency and small amplitude, low damping and low dynamic stiffness are provided, good vibration isolation and noise reduction performance is provided in multiple scenes, a small dynamic-static ratio can be provided, and the NVH comfort of the whole vehicle is improved.

    本发明提供一种车身悬置用液压衬套,包括上软垫、下软垫;上软垫与下软垫上、下配合连接,下软垫包括主簧组件,主簧组件包括刚度不同的腔体一、腔体二以及连通腔体一和腔体二的流道,腔体一和腔体二沿主簧组件的轴向依次设置,腔体一设置在腔体二的上侧,腔体一为工作腔室参与受力,腔体一、腔体二和流道中充有液体,液体通过腔体一受力形成的正压或负压流动于腔体一和腔体二以及流道之中。本发明通过腔体一为单一工作腔室、腔体二以及两者之间流道的设置,使得车身在低频、大振幅时,提供高阻尼和高动刚度;在高频、小振幅时,提供低阻尼、低动刚度,在多场景下提供良好的隔振降噪性能,能够提供较小的动静比,提高了整车的NVH舒适性。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Hydraulic bushing for vehicle body suspension


    Weitere Titelangaben:

    一种车身悬置用液压衬套


    Beteiligte:
    WANG ZHIPENG (Autor:in) / ZHAN JINGJING (Autor:in) / RAO WEIMIN (Autor:in) / CHEN QINGBIN (Autor:in) / CHEN CHANGPING (Autor:in)

    Erscheinungsdatum :

    11.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16F SPRINGS , Federn / B62D MOTOR VEHICLES , Motorfahrzeuge



    Hydraulic bushing for vehicle body suspension

    WANG ZHIPENG / ZHAN JINGJING / RAO WEIMIN et al. | Europäisches Patentamt | 2025

    Freier Zugriff


    Suspension bushing forming die, suspension bushing and vehicle

    CHEN AN / BAI KEFEI / SHI WEI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Bushing, suspension and vehicle

    LIU FEI | Europäisches Patentamt | 2024

    Freier Zugriff

    Bushing, suspension assembly and vehicle

    DAI YAQING / XIE XINQIN / LI GEN et al. | Europäisches Patentamt | 2025

    Freier Zugriff