ACTA AERONAUTICAET ASTRONAUTICA SINICA >
All-electric braking control method for UAVs based on hierarchical PID
Received date: 2025-09-05
Revised date: 2025-10-27
Accepted date: 2025-11-18
Online published: 2025-12-08
Supported by
National Natural Science Foundation of China(52375102);Natural Science Foundation of Jiangsu Province(BK20250181);the Fundamental Research Funds for the Central Universities(NN2025005);the Priority Academic Program Development of Jiangsu Higher Education Institutions
To address the strong nonlinearity， high coupling， and time-varying parameters of Unmanned Aerial Vehicle （UAV） all-electric braking systems， this paper proposes a hierarchical PID control strategy. The control parameters are adjusted in different stages according to the slip ratio to improve the aircraft’s deceleration performance. First， models of aircraft ground taxiing dynamics， wheel dynamics， tire-runway friction， and all-electric actuators were developed in Simulink. Furthermore， a predictive model for the brake disc friction coefficient is established using a Genetic Algorithm （GA）-optimized BP neural network， accounting for its real-time variations with temperature and braking pressure. A hierarchical PID control system comprising baseline braking， dynamic adjustment braking， and anti-skid braking is then designed. Through simulation analysis， a comparative study was conducted on the control performance of PD+PBM control and hierarchical PID control. Experimental verification of the hierarchical PID control strategy is also carried out on a ground inertia test bench. The results demonstrate that the proposed hierarchical PID method achieves superior control performance. The error between simulation and experimental results is within 11%， validating both the correctness of the simulation model and the effectiveness of the control strategy. The hierarchical PID controller exhibits satisfactory performance， enabling the aircraft to attain high deceleration rates under various operating conditions. Even under the most extreme and adverse condition-a wet runway with wet brake disks-the average deceleration rate of the aircraft in both simulation and experiments exceeds 2 m/s2， with an error between them within 5.58%.
Guodong ZHAO , Qiaozhi YIN , Songyang ZHANG , Xiaohui WEI , Hong NIE . All-electric braking control method for UAVs based on hierarchical PID[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2026 , 47(11) : 432760 -432760 . DOI: 10.7527/S1000-6893.2025.32760
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