Aircraft Anti-Skid Braking Nonlinear Control Based on ADRC

An efficient and safe landing procedure for an aircraft holds significance across economic, operational, and strategic considerations. Achieving the shortest possible landing distance without skidding necessitates a variable braking force that consistently matches the friction force. Thus, the control strategy of the Anti-skid Braking System (ABS) must encompass the ability to address pronounced nonlinearity and substantial unpredictable disturbances, while also regulating the wheel slip ratio to ensure a stable braking process. This study introduces the application of the Active Disturbance Rejection Control Technique to the anti-skid braking system. The proposed control algorithm guarantees that the closed-loop system operates within the vicinity of the peak point of the stable region on the friction curve. This optimization significantly enhances both braking performance and overall safety.