Composite Nonlinear Feedback-adaptive Integral Sliding Mode-based Follow-up Control for Aircraft Active Sidesticks

XING Haobin; WU Yangming; ZHENG Kai; WANG Xiaoli; OUYANG Quan; WANG Zhisheng

doi:10.15892/j.cnki.djzdxb.2025.01.001

Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 1: 1 - 7

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.01.001

Composite Nonlinear Feedback-adaptive Integral Sliding Mode-based Follow-up Control for Aircraft Active Sidesticks

XING Haobin ^,¹ ,
WU Yangming ¹ ,
ZHENG Kai ² ,
WANG Xiaoli ² ,
OUYANG Quan ^,¹ ,
WANG Zhisheng ¹

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¹ College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106,Jiangsu, China
² China Commercial Aircraft Corporation Limited Beijing Research Center,Beijing 102211,China

Received date: 2024-09-06

Online published: 2025-03-12

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Abstract

The active sidestick is a crucial control device that can adjust the flight attitude of an aircraft. In the automatic flight mode, the active sidestick follow-up function tracks the control commands from the flight controller in real-time to enhance the pilot's perception of the aircraft's flight status, thereby effectively improving flight safety. However, unknown disturbance torques in the system can degrade the tracking accuracy of the active sidestick. To address this challenge, a control method based on composite nonlinear feedback and adaptive integral sliding mode is proposed for the follow-up control of the active sidestick. This method integrates an integral sliding mode control algorithm and the composite nonlinear feedback control algorithm, where the composite nonlinear feedback control effectively improves the steady-state performance of the active sidestick system, and the adaptive integral sliding mode control effectively restrains unknown system disturbances. Extensive experimental results show that the proposed improved active sidestick follow-up control algorithm can reduce the adjustment time by approximately 41% and the steady-state error by about 93.6% compared to the previous composite nonlinear feedback control algorithm. Furthermore, under disturbance conditions, the improved follow-up control algorithm can reduce the adjustment time by about 79% compared to the traditional PID algorithm. This demonstrates that the designed improved active sidestick follow-up control algorithm can significantly enhance the system's control accuracy and response performance, and possess excellent disturbance rejection capabilities.

Key words： active sidestick; follow-up control; composite nonlinear feedback; adaptive integral sliding mode controller

Cite this article

XING Haobin , WU Yangming , ZHENG Kai , WANG Xiaoli , OUYANG Quan , WANG Zhisheng . Composite Nonlinear Feedback-adaptive Integral Sliding Mode-based Follow-up Control for Aircraft Active Sidesticks[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(1) : 1 -7 . DOI: 10.15892/j.cnki.djzdxb.2025.01.001

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