While used very successfully in process control for some time in Japan [Fur94] fuzzy logic is
still relatively new in other parts of the world. This paper describes some of the workings of fuzzy logic and demonstrates the basics of a fuzzy SAG mill control system.

Although, while relatively unknown, fuzzy control systems have already proven their value in a number of grinding control systems as compared to more traditional crisp expert control systems. This partially due to the fact that fuzzy logic is naturally easy to understand and maintaining a control strategy specified in fuzzy logic is quite straight forward.

Another advantage of fuzzy logic is the ease in which it can be integrated with other artificial intelligence methodologies such as, neural networks and genetic algorithms. Used in conjunction with these technologies fuzzy logic can be thought of as the glue that binds all of the technologies together and controls how they work interact with each other to optimize mineral processing applications.