Fuzzy supervisory predictive PID control of a plastics extruder barrel

Abstract The paper describes the design of single‐loop fuzzy supervisory predictive PID controllers for a plastics extruder barrel. A fuzzy supervisory shell is proposed to improve the set‐point tracking performance of the proposed PID method by appropriate adjustment of the weighting term for the control effort. Experimental results show that the proposed method is capable of giving a good result on the barrel.