A Linear-Active-Disturbance-Rejection-Based Vertical Takeoff and Acceleration Strategy with Simplified Vehicle Operations for Electric Vertical Takeoff and Landing Vehicles

Shengchen Mao (), Zheng Gong, Zheng Ye, Zian Wang, Tongqing Guo and Chengxi Zhang
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Shengchen Mao: Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Zheng Gong: Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Zheng Ye: Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Zian Wang: Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Tongqing Guo: Department of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Chengxi Zhang: School of Electronics and Information Engineering, Harbin Institute of Technology, Shenzhen 518055, China

Mathematics, 2022, vol. 10, issue 18, 1-22

Abstract: A practical vertical takeoff and acceleration strategy is developed for manned electric vertical takeoff and landing vehicles, with a simple vehicle operation principle defined. Firstly, a 6-DOF model is established for 120 kg reduced-scale protype electric vertical takeoff and landing vehicles, with its physical control principles illustrated. Then, a simple vehicle operation method is defined for the vehicle, where the conventional operation method for fixed-wings and helicopters is considered for a friendly stick response definition for pilots with different backgrounds. The defined simple vehicle operation principles are realized by a control architecture with a linear-active-disturbance-rejection-control-based inner loop stability augmentation system and an airspeed-based mode selection outer loop. This system is then used to perform a four-stage vertical takeoff and acceleration strategy, which targets at a smooth and safe transition. The Monte Carlo simulation results and the strategy simulations prove that the proposed strategy, which achieves the design target perfectly, can be easily performed with the developed simple vehicle operation system, and that it has sufficient robustness performance to reject at least 20% of the model’s uncertainties.

Keywords: electric vertical takeoff and landing vehicles; bandwidth parameter design; linear active disturbance rejection control; simplified vehicle operation; transition control; takeoff strategy; Monte Carlo simulations (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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