Typical vehicle dynamics simulations demand a trade-off between short computation times and accuracy. Many of the more simple models are based on the kinematic roll center and the more accurate models tend to be multi-body dynamics simulation programs. There is a need for a model that improves the accuracy of the kinematic roll center models while still maintaining short computation times. Such a model could be used track-side during races to guide race teams toward improved handling.The model presented in this paper removes many of the assumptions and limitations of the kinematic roll center model. The model accounts for three-dimensional forces present at the contact patch and predicts deflections of suspension components. The modeling approach is applied to a NASCAR Craftsman Truck to predict the effects of suspension design and tuning on steady-state understeer characteristics of the vehicle. Braking and acceleration forces can also be applied to the vehicle. Track bank angle is also included, as is the ability to turn left or right. A graphical user interface is included that eases the parameter input process and improves the usefulness of the displayed results.


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    Title :

    Novel Force-Based High-Speed Three-Dimensional NASCAR Vehicle Model


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Motorsports Engineering Conference & Exposition ; 2004



    Publication date :

    2004-11-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Novel force-based high speed three-dimensional NASCAR vehicle model

    Manes, E. N. / Starkey, J. M. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    2004-01-3525 Novel Force-Based High-Speed Three-Dimensional NASCAR Vehicle Model

    Manes, E. N. / Starkey, J. M. | British Library Conference Proceedings | 2004


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