Adaptive aircraft anti-skid braking control for runway disturbance compensation

Abstract

During aircraft braking, the wheels are often in a high-slip state, making them prone to repeated skidding under the influence of internal and external disturbances. Therefore, designing a disturbance-resistant anti-skid braking control system is key to achieving efficient braking. This paper proposes an adaptive runway disturbance-resistant anti-skid braking control law that addresses the problem of skidding caused by various disturbances during aircraft braking, thereby improving braking efficiency. By studying the internal and external disturbances affecting the aircraft during braking, these disturbances are classified based on their impact on the balance point of the wheel slip system. A method based on the induced ideal limit cycle is proposed to detect disturbances. An adaptive braking control strategy incorporating runway recognition technology was developed, enabling the braking system to adjust the target deceleration rate according to real-time disturbances. Finally, simulation tests and inertial platform tests confirmed that the proposed control law significantly improves efficiency compared to the PBM (Press Bias Module) control method.