The optimal damping design of roll plane interconnected hydro-pneumatic suspension is investigated, in order to improve vertical ride and road-friendliness of heavy vehicles, while maintaining enhanced roll stability. A nonlinear roll plane vehicle model is developed to study vertical as well as roll dynamics of heavy vehicles. The damping valves and gas chamber are integrated within the same suspension strut unit to realize compact design. The influence of variations in damping valve threshold velocity on relative roll stability is explored, under centrifugal acceleration excitations arising from steady turning and lane change maneuvers, as well as crosswind. The effects of damping valve design parameters on the vertical ride vibration and vehicle-road interaction characteristics are also investigated under a medium rough road input and two different vehicle speeds. A performance index is developed based on RMS sprung mass bounce acceleration and dynamic load coefficients (DLC) due to left and right tire loads. The design parameters of compression and rebound damping valves are optimized to minimize the performance index, while remaining improved roll stability. The benefits of the optimal damping designs on the vertical ride and road-friendliness of heavy vehicles are demonstrated, subjected to a wide range of road roughness and vehicle speed inputs. The shock isolation characteristics due to the baseline and optimal damping designs are further compared under discrete road bump inputs.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Optimal Damping Design of Heavy Vehicle with Interconnected Hydro-Pneumatic Suspension


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Su, Chun-Yi (Autor:in) / Cao, Dongpu (Autor:in) / Rakheja, Subhash (Autor:in)

    Kongress:

    SAE World Congress & Exhibition ; 2007



    Erscheinungsdatum :

    16.04.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Optimal damping design of heavy vehicle with interconnected hydro-pneumatic suspension

    Cao,D. / Rakheja,S. / Su,C.Y. et al. | Kraftfahrwesen | 2007


    Shock absorber for interconnected hydro-pneumatic suspension, suspension system and vehicle

    ZENG JIONGLI / WANG GUOJIN / WANG CHANGZHEN | Europäisches Patentamt | 2024

    Freier Zugriff

    Four-wheel interconnected hydro-pneumatic suspension and automobile

    ZENG JIONGLI / WANG CHANGZHEN / WANG GUOJIN et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Design and test of lateral interconnected hydro-pneumatic ISD suspension

    Nie, Jiamei / Zhao, Yue / Zhang, Xiaoliang et al. | SAGE Publications | 2024


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

    WU YONGCHUANG / GUO KUN | Europäisches Patentamt | 2020

    Freier Zugriff