Autor: Péni, T. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Nonlinear analysis of vehicle control actuations based on controlled invariant sets
Autorzy:: Németh, B.
Gáspár, P.
Péni, T.
Powiązania:: https://bibliotekanauki.pl/articles/331245.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: vehicle dynamics
sum of squares programming
Lyapunov method
dynamika pojazdu
metoda Lapunowa
analiza nieliniowa
Opis:: In the paper, an analysis method is applied to the lateral stabilization problem of vehicle systems. The aim is to find the largest state-space region in which the lateral stability of the vehicle can be guaranteed by the peak-bounded control input. In the analysis, the nonlinear polynomial sum-of-squares programming method is applied. A practical computation technique is developed to calculate the maximum controlled invariant set of the system. The method calculates the maximum controlled invariant sets of the steering and braking control systems at various velocities and road conditions. Illustration examples show that, depending on the environments, different vehicle dynamic regions can be reached and stabilized by these controllers. The results can be applied to the theoretical basis of their interventions into the vehicle control system.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2016, 26, 1; 31-43
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Supervisory fault tolerant control of the GTM UAV using LPV methods
Autorzy:: Péni, T.
Vanek, B.
Szabó, Z.
Bokor, J.
Powiązania:: https://bibliotekanauki.pl/articles/330070.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: fault tolerant control
linear parameter varying systems
supervisory architecture
flight control
sterowanie tolerujące uszkodzenia
układ liniowy niestacjonarny
sterowanie lotem
Opis:: A multi-level reconfiguration framework is proposed for fault tolerant control of over-actuated aerial vehicles, where the levels indicate how much authority is given to the reconfiguration task. On the lowest, first level the fault is accommodated by modifying only the actuator/sensor configuration, so the fault remains hidden from the baseline controller. A dynamic reallocation scheme is applied on this level. The allocation mechanism exploits the actuator/sensor redundancy available on the aircraft. When the fault cannot be managed at the actuator/sensor level, the reconfiguration process has access to the baseline controller. Based on the LPV control framework, this is done by introducing fault-specific scheduling parameters. The baseline controller is designed to provide an acceptable performance level along all fault scenarios coded in these scheduling variables. The decision on which reconfiguration level has to be initiated in response to a fault is determined by a supervisor unit. The method is demonstrated on a full six-degrees-of-freedom nonlinear simulation model of the GTM UAV.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2015, 25, 1; 117-131
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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