Delay-dependent Fuzzy Control Designs for a Class of Nonlinear Systems

This paper deals with the problems of stability analysis and control designs for a class of delay-dependent nonlinear systems with input constraint when using T-S fuzzy model in consideration of the uncertainties in the system. As a result, it arrives at two kinds of feedback controllers in terms of linear matrix inequalities (LMIs), in which the latter tries to use less information about the delay. In order to make the LMIs less conservative, two other controllers from the above controllers are provided, trying to make the so-called ellipsoids, in the insides of which the closed-loop system stability is guaranteed, as large as possible.