Model-based State Estimator for an Intelligent Tire
conference paper
In this work a Tire State Estimator (TSE) is developed and validated using data from a tri-axial accelerometer, installed at the inner liner of the tire. The Flexible Ring Tire (FRT) model is proposed to calculate the tire deformation. For a rolling tire, this deformation is transformed into tangential and radial accelerations of a point on the inner liner. The results of this model show close correspondence to the experimental data. The FRT model is implemented in the observer of the TSE to estimate the longitudinal and vertical tire forces. Besides the observer, the TSE comprises a peak synchronization (PS) algorithm. Experiments show that the TSE provides accurate estimation of longitudinal and vertical tire forces, even for severe braking conditions. In addition, it shows robustness and fast convergence for large initial estimation errors. Finally, this concept of model-based tire force estimation results in a small estimation time delay.
TNO Identifier
573442
Publisher
CRC Press/Balkema, Taylor & Francis Group
Source title
13th International Symposium on Advanced Vehicle Control, AVEC '16, 13-16 September 2016, Munich, Germany
Collation
6 p.
Place of publication
London
Files
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