An Alternative Procedure for the Calculation of Fuzzy Logic Controller Values

Abstract

We look at structure of the fuzzy logic controller from the point of view of a function relating input to output. This view in turn can be generalized to that of looking at the fuzzy logic controller as a mathematical relationship. In this view the problem of finding fuzzy logic controller outputs becomes equivalent to solving mathematical relationships. Using this motivation we suggest an alternative approach to the calculation of the output of fuzzy logic controllers. This approach is based upon the use of level sets and is called the level set method. This method provides a very efficient way of calculating fuzzy logic controller outputs that is easily implemented in hardware.