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Nonlinear fuzzy controller. (English) Zbl 0744.93065
Summary: We consider a fuzzy controller with two inputs, triangular fuzzy numbers, Zadeh logic to evaluate linear control rules, and a center of gravity defuzzifier. We derive a closed form expression for the defuzzified output and show it is a nonlinear controller. We then analyze the nonlinearities of the fuzzy controller with respect to the PI controller.

MSC:
93C42 Fuzzy control/observation systems
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