Research and Applications of Immune PID Adaptive Controller in Anti-Skid Braking System for Aircraft

For modern aircraft, the anti-skid braking system is one of the key airborne equipment and plays a very important role in safe takeoff and landing. Aircraft anti-skid braking system must prevent tires from slipping extremely on the track, and ensure aircraft landing safety and stability with maximum braking efficiency. Since aircraft anti-skid braking system is a time-varying nonlinear system, traditional PID control algorithm is difficult to get predictive results and many intelligent methods have been applied to the system. In this paper, a new control algorithm with immune PED for aircraft anti-skid braking system combined with the advantages of PBM (pressure-bias-modulated) is presented. The results of simulation indicated that this method greatly improves braking efficiency, shortens braking distance, and boosts up aircraft braking performance and robustness.