The Nondimensional Tire Model is based on the idea of data compression to load-independent curves. Through the use of appropriate transforms, tire data can be manipulated such that, when plotted in nondimensional coordinates, all data falls on a single curve. This leads to a highly efficient and mathematically consistent tire model.In the past, data for slip angle and slip ratio has been averaged across positive and negative values for use with the transforms. In this paper, techniques to handle tire asymmetries in lateral and longitudinal force are presented. This is an important advance, since in passenger cars driving/braking data is almost always asymmetric and, depending on tire construction, lateral force data may follow likewise.In addition, this paper is the first to explore the inclusion of inflation pressure as an operating variable in the Nondimensional Tire Theory. Inflation pressure affects the shape of the tire curves, notably the linear range stiffness and peak force friction coefficient. With this new variable, the operating conditions addressed by Nondimensional Tire Theory now include slip angle, slip ratio, inclination angle, normal load, surface friction coefficient and inflation pressure.


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    Titel :

    Tire Asymmetries and Pressure Variations in the Radt/Milliken Nondimensional Tire Model


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2006 Automotive Dynamics, Stability and Controls Conference and Exhibition ; 2006



    Erscheinungsdatum :

    14.02.2006




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Inflation Pressure Effects in the Nondimensional Tire Model

    Milliken, Douglas L. / Kasprzak, Edward M. / Lewis, Kemper E. | SAE Technical Papers | 2006


    2006-01-3607 Inflation Pressure Effects in the Nondimensional Tire Model

    Kasprzak, E. M. / Lewis, K. E. / Milliken, D. L. et al. | British Library Conference Proceedings | 2006


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