Interval observer for LPV systems: Application to vehicle lateral dynamics

Abstract : This paper presents a new method for guaranteed and robust estimation of sideslip angle and lateral tire forces with consideration of cornering stiffness variations resulting from changes in tire/road and driving conditions. An interval LPV observer with both measurable and unmeasurable time-varying parameters is proposed. The longitudinal velocity is treated as the online measured time-varying parameter and the cornering stiffness at front and rear tires are assumed to be unknown but bounded with a priori known bounds. The obtained results are no more punctual values but a set of acceptable values. The simulation is based on experimental data in order to prove the effectiveness of the proposed observers.
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Conference papers
20th World Congress of the International Federation of Automatic Control, Jul 2017, Toulouse, France. 50 (1), pp.7572--7577, 2017, IFAC-PapersOnLine. 〈10.1016/j.ifacol.2017.08.995〉
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Sara Ifqir, Naima Ait Oufroukh, Dalil Ichalal, Saïd Mammar. Interval observer for LPV systems: Application to vehicle lateral dynamics. 20th World Congress of the International Federation of Automatic Control, Jul 2017, Toulouse, France. 50 (1), pp.7572--7577, 2017, IFAC-PapersOnLine. 〈10.1016/j.ifacol.2017.08.995〉. 〈hal-01629342〉

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