A linguistic model for the controlled object

A new presentation for linguistic model of the object to be controlled in a control system is presented. Just as the importance of mathematic mode to conventional control theory, the linguistic model is important in a fuzzy control system. With the linguistic model of controlled object or process to be controlled, we can construct a close loop system representation. Consequently, we can discuss the system appearance with the assistance of the linguistic model as we do using a mathematic model in a conventional control system. In this paper, we discuss the representation of linguistic model and the combine methods for the controller model and the linguistic model of controlled object. Still we introduce a model construction method using human’s intuitional knowledge.