scholarly journals Designing and Modeling of Quadcopter Control System Using L1 Adaptive Control

2017 ◽  
Vol 103 ◽  
pp. 528-535 ◽  
Author(s):  
Kyaw Myat Thu ◽  
A.I. Gavrilov
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
L1 Adaptive Control

scholarly journals Energy Efficiency Enhanced Landing Strategy for Manned eVTOLs Using L1 Adaptive Control

Symmetry ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2125
Author(s):  
Zian Wang ◽  
Shengchen Mao ◽  
Zheng Gong ◽  
Chi Zhang ◽  
Jun He
Keyword(s):  
Energy Efficiency ◽  
Adaptive Control ◽  
Control System ◽  
Horizontal Plane ◽  
Safety Performance ◽  
L1 Adaptive Control ◽  
Flight Experience ◽  
Vertical Takeoff And Landing ◽  
Stability Augmentation ◽  
Vertical Takeoff

A new landing strategy is presented for manned electric vertical takeoff and landing (eVTOL) vehicles, using a roll maneuver to obtain a trajectory in the horizontal plane. This strategy rejects the altitude surging in the landing process, which is the fatal drawback of the conventional jumping strategy. The strategy leads to a smoother transition from the wing-borne mode to the thrust-borne mode, and has a higher energy efficiency, meaning a better flight experience and higher economic performance. To employ the strategy, a five-stage maneuver is designed, using the lateral maneuver instead of longitudinal climbing. Additionally, a control system based on L1 adaptive control theory is designed to assist manned driving or execute flight missions independently, consisting of the guidance logic, stability augmentation system and flight management unit. The strategy is verified with the ET120 platform, by Monte Carlo simulation for robustness and safety performance, and an experiment was performed to compare the benefits with conventional landing strategies. The results show that the performance of the control system is robust enough to reduce perturbation by at least 20% in all modeling parameters, and ensures consistent dynamic characteristics between different flight modes. Additionally, the strategy successfully avoids climbing during the landing process with a smooth trajectory, and reduces the energy consumed for landing by 64%.

ADAPTIVE CONTROL SYSTEM FOR AIRCRAFT LONGITUDINAL MOTION

2012 ◽  
Vol 43 (5) ◽  
pp. 683-695 ◽  
Author(s):  
Yury Grigoryevich Zhivov ◽  
Alexander Mikhaylovich Poedinok
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Longitudinal Motion ◽  
Adaptive Control System

Model-reference adaptive control system

AIChE Journal ◽  
1967 ◽  
Vol 13 (3) ◽  
pp. 485-491 ◽  
Author(s):  
Robert M. Casciano ◽  
H. Kenneth Staffin
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Model Reference Adaptive Control ◽  
Adaptive Control System ◽  
Model Reference ◽  
Model Reference Adaptive
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