The influence of magneto-rheological damper modeling in vehicle dynamics analysis is studied. Several tests using CarSim compare a four-corner controlled semi-active suspension for two different magneto-rheological damper models. The magneto-rheological damper characteristics were identified from experimental data. A model-free controller discards the influence of control and emphasizes the compliance of the magneto-rheological damper model; the characteristics of the vehicle index performance considered were comfort, road holding, handling, roll and suspension deflection. The comparison for magneto-rheological damper dynamics and semi-active suspension covers the automotive bandwidth. The results show that high precision of a magneto-rheological damper model as an isolated feature is not enough. The magneto-rheological damper model, as a component of a vehicle suspension, needs to simulate with passive precision and variable damping forces. The findings exhibit the requisite of accurate models for evaluation of semi-active control systems in classic tests. The lack of the friction component in a magneto-rheological damper model leads to an overestimation in handling and stability.


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    Title :

    Influence of MR damper modeling on vehicle dynamics



    Published in:

    Smart Materials and Structures ; 22 , 12 ; 125031/1-125031/13


    Publication date :

    2013


    Size :

    13 Seiten, 43 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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