Development method for low cost fuzzy controlled servosystems

This paper proposes an original development method for low cost fuzzy control systems dedicated to a class of servosystems. The controlled plants in these systems can be characterized by second-order dynamics with integral type. The controller part in these systems is represented by attractive two-degree-of-freedom PI-fuzzy controllers. The method is based on using the linear case results expressed in terms of the extended symmetrical optimum method and of iterative feedback tuning algorithms, and by the transfer of these results to the fuzzy case. Real-time experimental results corresponding to a nonlinear servosystem validate the proposed development method