DISO Fuzzy Control Algorithm with Potentially-inherited Variable Universe and Its Convergence Property

In this paper, a novel fuzzy control algorithm is presented for conventional DISO(double-input & single-output) fuzzy controller. The new algorithm is based on potentially-inherited variable universe. By defining an auxiliary fuzzy singleton set and a fuzzy singleton transition function, the operation of variable universe is greatly simplified at the consequent part of inference. So, the algorithm's computation is significantly reduced, comparing with the method of directly-inherited variable universe or the method of integral variable universe. Finally, the convergence property of this control algorithm is proved theoretically.