Method and device for piloting a pitching aircraft

Details Method and device for piloting a pitching aircraft Method and device for piloting a pitching aircraft

G - Physics

05

D

G05D 1/08 (2006.01)

Patent

CA 2591965

The invention relates to a method and device for piloting a pitching aircraft. The inventive device (1) comprises: means (4) for receiving an ordered load factor (NZc); means (11) for estimating a load factor (NZcg) that is applied to the aircraft; a means (12) for calculating a control order for a means (5) for deflecting a control surface (7) of the aircraft, taking account of at least the following expression K1.NZc + K2.NZcg, K1 and K2 representing gain values; means (13) for determining the Mach number; means (14) for determining the angle of incidence; means (15) for comparing the angle of incidence with a reference value; and means (16) for determining a modified gain value (.DELTA.K2) with the aid of the Mach number and the angle of incidence if said angle of incidence is greater than the reference value, said modified gain value (.DELTA.K2) replacing gain value K2 in the calculation performed by the calculation means (12).

- Le dispositif (1 ) comporte des moyens (4) pour recevoir un facteur de charge commandé NZc, des moyens (1 1 ) pour estimer un facteur de charge NZcg appliqué à l'avion, un moyen de calcul (12) pour calculer un ordre de commande d'un moyen de braquage (5) d'une gouverne (7) de l'avion en prenant en compte au moins l'expression suivante KLNZc + K2.NZcg, K1 et K2 étant des valeurs de gain, des moyens (13) pour déterminer le nombre de Mach, des moyens (14) pour déterminer l'an¬ gle d'incidence, des moyens (15) pour comparer l'angle d'incidence à une valeur de référence, et des moyens (16) pour déterminer une valeur de gain modifiée .DELTA.K2 à l'aide du nombre de Mach et dudit angle d'inci¬ dence si ledit angle d'incidence est supérieur à ladite valeur de réfé¬ rence, cette valeur de gain modifiée .DELTA.K2 remplaçant la valeur de gain K2 dans Ie calcul réalisé par le moyen de calcul (12) .

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