Airplane attack angle determining method

Abstract

The invention provides an airplane attack angle determining method. Two attack angle sensors are arranged on the two sides of the airplane head and are symmetrically arranged about the axis of the airplane body; and a four-redundancy potentiometer electric brush is arranged in the attack angle sensor on each side to constitute a four-redundancy electric signal of the attack angle on one side. Theairplane attack angle determining method comprises the following steps: obtaining the current ground state of the airplane; adopting a first attack angle sensor to obtain the electric determining value of the airplane left attack angle, and adopting a second attack angle sensor to obtain the electric determining value of the airplane right attack angle; according to the current ground state of theairplane, the electric determining value of the airplane left attack angle and the electric determining value of the airplane right attack angle, generating the mechanical attack angle determining value of the airplane; judging whether the mechanical attack angle determining value is valid or not, if yes, carrying out attach angle signal output according to the mechanical attack angle determiningvalue; otherwise, generating a fake attack angle, and carrying out attack angle signal output according to the fake attack angle. The airplane attack angle determining method can be precisely realized and is reliable in performance.

Description

technical field [0001] The application belongs to the technical field of aircraft angle-of-attack detection, and in particular relates to an aircraft angle-of-attack voting method. Background technique [0002] Aircraft angle of attack is one of the key parameters of aircraft control. The aircraft adjusts the leading edge flaps, flaperon, flat tail and other rudder surfaces according to the change of the current angle of attack, so as to change the attitude of the aircraft and improve the performance of the aircraft. At the same time, the angle of attack also affects the limit limit and warning function of the aircraft, which plays an important role in the flight safety of the aircraft. [0003] At present, the angle of attack on conventional aircraft adopts the scheme of mechanical single redundancy and electrical double redundancy, and after a failure, the method of reconfiguring the control law design by configuring a safe value for the angle of attack is often used to en...

AI Technical Summary

Problems solved by technology

In the traditional use strategy of angle of attack, the configuration of angle of attack with single mechanical redundancy and electrical redundancy is adopted. The disadvantage is that a single electrical failure will cause the failure of the entire mechanical angle of attack, and the fault tolerance is poor.

The above strategies for using the angle of attack of the aircraft cannot well meet the needs of the aircraft for the use of the angle of attack

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