RBF NN observer based adaptive feedback control for the ABS system under parametric uncertainties and modelling errors
by Ait Abbas Hamou; Rabhi Abdelhamid; Belkheiri Mohammed
International Journal of Modelling, Identification and Control (IJMIC), Vol. 35, No. 4, 2020

Abstract: An antilock braking (ABS) scheme control is a relatively difficult task due to its uncertain nonlinear dynamics. According to the requirement that the braking process must be fast and robust, we contribute to extending the universal function approximation property of the radial-basis-function (RBF) neural network (NN) to design both: (a) adaptive NN observer to estimate the tracking error dynamics; and (b) intelligent NN output feedback controller (OFC) that will overcome successfully the existing high uncertainties. Notice that the OFC is introduced to linearise the ABS nonlinear system, and the dynamic compensator is involved to stabilise the linearised system. The estimated states are used in the adaptation laws as an error signal. Simulations of the proposed control algorithm based adaptive RBFNN observer are conducted then compared to the Bang-bang controller to demonstrate its practical potential. Furthermore, its efficiency has been successfully confirmed through a robustness test.

Online publication date: Thu, 06-May-2021

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