Control of aircraft anti-skid braking system considering nonlinear factors

被引：0
|
作者：
Chen X.-Y. [1 ]
Wang H.-T. [1 ]
Yan X.-S. [1 ]
Yang J.-Z. [1 ]
机构：
[1] School of Safety Science and Engineering, Civil Aviation University of China, Tianjin
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2022年 / 39卷 / 05期
关键词：
Braking system; Fuzzy control; Nonlinear control; Sliding mode control; Slip ratio;
D O I：
10.7641/CTA.2021.10532
中图分类号：
学科分类号：
摘要：
The braking process of aircraft has strong nonlinearity, the widely used pressure-bias-modulated (PBM) control law is difficult to achieve high performance control of aircraft brake. In this study, a sliding mode control law considering nonlinear factors in aircraft braking process is proposed. Firstly, the nonlinear model of aircraft anti-skid braking system is established for considering the nonlinear tire-runway and the nonlinear friction coefficient of brake disc; Then a sliding mode observer is designed to estimate the aircraft speed, and on the basis, a sliding mode variable structure control law is designed; Finally, the sliding mode control law is optimized based on fuzzy theory to suppress chattering of the controller. The simulation results show that the control effect of the sliding mode variable structure control law based on the fuzzy exponential reaching law is better than the traditional PD+PBM control law, the chattering effect of the controller output is obviously suppressed, it can adapt to the complex nonlinear factors in the braking process, and the control method is reasonable and effective. © 2022, Editorial Department of Control Theory & Applications. All right reserved.
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页码：950 / 958
页数：8
相关论文
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