A diagnosis-based approach for tire-road forces and maximum friction estimation

Abstract : A new approach to estimate vehicle tire forces and road maximum adherence is presented. Contrarily to most of previous works on this subject, it is not an asymptotic observer based estimation, but a combination of elementary diagnosis tools and new algebraic techniques for filtering and estimating derivatives of noisy signals. In a first step, instantaneous friction and lateral forces will be computed within this framework. Then, extended braking stiffness concept is exploited to detect which braking efforts allow to distinguish a road type from another. A weighted Dugoff model is used during these “distinguishable” intervals to estimate the maximum friction coefficient. Very promising results have been obtained in noisy simulations and real experimentations for most of driving situations.
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Dernière modification le : jeudi 10 mai 2018 - 02:06:34
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Jorge Villagra, Brigitte D'Andréa-Novel, Michel Fliess, Hugues Mounier. A diagnosis-based approach for tire-road forces and maximum friction estimation. Control Engineering Practice, Elsevier, 2011, 19 (2), pp.174-184. 〈10.1016/j.conengprac.2010.11.005〉. 〈inria-00533586〉

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