I have found this topic but I am not allowed to answer. https://www.physicsforums.com/threads/fuzzy-logic-control-vs-pid.667717/ I have the same concern that the fuzzy is basically similar to a proportional control. In the thread I liked above, there is also this link http://www.ece.uidaho.edu/ee/classes/ECE573F05/PID%20vs%20Fuzzy%20Control.pdf [Broken] but it does not work any longer, and I cannot find. Can someone explain me in which way the fuzzy differs from the proportional control, or provide some link? Many thanks.