Simulation of Temperature Controller for an Injection Mould Machine using Fuzzy Logic

This research introduces a method for designing a linear fuzzy controller to control the temperature in an injection mould machine. First, a time-delay system is introduced as the temperature control system. The fuzzy controller system is composed of a heater transfer function controller and a decision maker. Both the controller and the decision maker are designed using fuzzy logic, and simulated in MATLAB. For facilitating the implementation of the fuzzy circuit, a linear equation is estimated from fuzzy equations using regression method, and its response is compared to that of the fuzzy controller. Finally, a PID controller is designed and its response is compared to the response of the fuzzy system.