Wheel slip estimation based on real-time identification of tire-road friction conditions

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Abstract

This paper is to develop efficient nonlinear observers for wheel slip with real-time friction parameter estimation only using wheel angular velocity. The model-based wheel slip control approach is adopted, which models the friction forces between the tires of the vehicle and the road surface, and an adaptive algorithm is designed for each wheel. It is shown that the adaptive observer is uniformly globally asymptotically stable under the condition of uniform δ-persistency of excitation. In addition, a stronger local stability result is obtained, where uniform local exponential stability is proven. Simulation results are provided to demonstrate the performance of the adaptive observer, even on the low friction road surface.

Original languageEnglish
Title of host publication2013 American Control Conference, ACC 2013
Pages2815-2820
Number of pages6
StatePublished - 2013
Event2013 1st American Control Conference, ACC 2013 - Washington, DC, United States
Duration: 17 Jun 201319 Jun 2013

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Conference

Conference2013 1st American Control Conference, ACC 2013
Country/TerritoryUnited States
CityWashington, DC
Period17/06/1319/06/13

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