Path Angle and Velocity Control of Aircraft Using Kreisselmeier's Structure and the LQG-LTR Method
Leonardo Silva Vasconcellos1; Karl Heinz Kienitz2; Fernando José de Oliveira Moreira1
1 Embraer; 2 ITA
doi:10.20906/CPS/COB-2015-0844
Resumo
The closed loop control of speed and flight path angle is addressed, to enable their use in 4D trajectory managers. The solution adopted is based on the two-degree-of-freedom topology of Kreisselmeier, which is employed along with concepts from robust control concepts. More specifically control design is carried out using the LQG-LTR method and its generalization TFL-LTR. To validate the proposed solution a case study is used which bases on the model of a commercial passenger aircraft. The specifications were defined based on best practices control law design of the aviation industry. The case study showed that the controller based on the proposed topology meets the specifications and yields a closed loop system with interesting robustness properties.
Palavras-chave: Robust Control; Kreisselmeier's topology; 4D trajectory; LQG/LTR