Fuzzy Logic Controller and PID Controller Design for Aircraft Pitch Control

The goal of this paper is to compare a PID controller and a Fuzzy Logic controller in terms of pitch control of an aircraft. Firstly, derivation of the mathematical model is introduced to define the dynamics of an aircraft. To inspect the performance of the controllers, the PID (Proportional-Integral-Derivative) and FLC (Fuzzy Logic Controller) is proposed for controlling the pitch angle of an aircraft. Simulation results are illustrated in the time domain. In the end, the performances of pitch control are looked into and examined with respect to evaluation criteria of step response so as to determine which control method exhibits better performance depending on pitch angle and pitch rate. It is determined thanks to simulation that FLC shows better performance than PID controller.