Adaptive friction compensation with a time-delay friction model

Abstract

This paper presents a new compensation technique for a time-delay friction model that captures the effect of frictional memory. The proposed control utilizes a proportional-derivative (PD) control structure and an adaptive estimate of the friction force. Specifically, a radial basis function (RBF) is used to compensate the effects of the non-linearly occurring parameters in the friction model. Simulation results verify the theory and show that the method can significantly improve the tracking performance of a control system in which it is used.