Fault-tolerant Control Method for All-type Actuator Faults of eVTOL Aircraft

Authors

• Juan Wang, Engineering Techniques Training Center, Civil Aviation University of China, Tianjin 300300, China; College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
• Guorui Li, College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
• Zhiyong Fan, Engineering Techniques Training Center, Civil Aviation University of China, Tianjin 300300, China; College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
• Huijie Chen, College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China

Abstract

Abstract: To address all-type actuator faults, especially nonlinear distortion issues, in multi-rotor eVTOL aircraft, a novel fault-tolerant control method was proposed. A fault function was established at the rotor speed level, and a fault-tolerant control algorithm combining dynamic robust nonsingular fast integral terminal sliding mode with a high-order finite-time disturbance observer was designed to achieve fault-tolerant control through rotor redundancy allocation. The nonsingular fast integral terminal sliding mode algorithm was improved, and a dynamic system containing actuator faults and their derivatives was constructed via a dynamic surface to achieve system convergence within finite time, avoiding the singularity and chattering problems of the controller; the high-order finite-time disturbance observer observed and compensated for uncertainties and their higher-order derivatives. Simulation results indicate that this fault-tolerant control method solves the problem of actuator's nonlinear mapping distortion, handles severe faults in single-rotor, multi-rotor, and even same-side multi-rotor actuators, and achieves high-precision trajectory tracking performance even under combined faults of sensors, actuators, and external disturbances.

Recommended Citation

Wang, Juan; Li, Guorui; Fan, Zhiyong; and Chen, Huijie (2026) "Fault-tolerant Control Method for All-type Actuator Faults of eVTOL Aircraft," Journal of System Simulation: Vol. 38: Iss. 8, Article 9.
DOI: 10.16182/j.issn1004731x.joss.25-0947
Available at: https://dc-china-simulation.researchcommons.org/journal/vol38/iss8/9

First Page

2250

Last Page

2264

CLC

TP273

Recommended Citation

Wang Juan, Li Guorui, Fan Zhiyong, et al. Fault-tolerant Control Method for All-type Actuator Faults of eVTOL Aircraft[J]. Journal of System Simulation, 2026, 38(8): 2250-2264.

Corresponding Author

Li Guorui

DOI

10.16182/j.issn1004731x.joss.25-0947