Abstract
In this paper, an adaptive controller called Grey-Verhulst Sliding Mode Controller (GVSMC) is proposed for the laboratory Antilock Braking System (ABS). The developed Grey-Verhulst Model (GVM) does a better prediction of wheel slip than a simple Grey Model. The first order Sliding Mode Controller (SMC) maintains the wheel slip at the desired value. By combining the GVM and SMC, the resulting GVSMC controls the wheel slip at the desired optimum value at which the vehicle control, non-skidding and steerability are ensured during sudden braking. The proposed controller also reduces the stopping distance considerably. Simulation results show that the performance of the proposed GVSMC is better than the simple SMC and Grey SMC reported in literature earlier. Change in road conditions has also been considered.
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