Abstract
In this paper, a new identification method for non-parametric piecewise affine (PWA) models is introduced and applied for a mechanical system with non-linear friction. The method is based on the non-parametric data-based representation of PWA maps and the data compression with l_1 optimization technique, which enable the method to deal with large data sets. This method can be applied to a wide range of modeling problems, and an actuator with harmonic drive system is analyzed in this paper.
