Fuzzy Sliding Mode Control with Chattering Elimination for a Quadrotor Helicopter in Vertical Flight

The control of the helicopter includes nonlinearities, uncertainties and external perturbations that should be considered in the design of control laws. This paper presents a control strategy for quadrotor helicopter, based on the coupling of the fuzzy logic control and sliding mode control (SMC), using a nonlinear sliding surface. The main purpose of this work is to eliminate the chattering phenomenon. To achieve our purpose we have used a fuzzy logic control to generate the hitting control signal, the results of our simulations indicate that the control performance of the quadrotor are satisfactory and the proposed fuzzy sliding mode control (FSMC) can achieve favorable tracking performance.