Fly-by-wire control system attack angle monitoring and voting method

Abstract

The invention belongs to the redundancy management technology of a fly-by-wire control system and specifically relates to a mechanical two-redundancy and electrical four-redundancy attack angle sensor output monitoring and voting structure and a voting method thereof. The method is characterized by, to begin with, carrying out monitoring and voting on electrical four-redundancy signals of left and right attack angles to obtain attack angle electrical voting values respectively; and then, carrying out voting again on the electrical voting values of the left and right attack angles to obtain mechanical attack angle voting values respectively. Attack angle redundancy configuration is reasonable, and the monitoring and voting method is reliable; system closed loop control is allowed to be stable and reliable; and meanwhile, requirements for attack angle sensor output reliability and safety of the fly-by-wire control system are met.

Description

technical field [0001] The invention belongs to the redundancy management technology of a telex control system, and in particular relates to a monitoring voting structure and a voting method for the output of a mechanical two-degree redundancy and electric four-degree redundancy angle of attack sensor output. Background technique [0002] There are two schemes for conventional fly-by-wire control system angle-of-attack sensor configuration: electrical four-redundant, mechanical single-channel or electrical two-redundant and mechanical three-redundant configuration. [0003] The disadvantages of the former scheme are: poor fault tolerance, electrical common faults lead to the failure of the angle of attack, and the fly-by-wire control system cannot complete the task, resulting in low system reliability; The side mechanical angle of attack is invalid, and the cost of the sensor is high, the mechanical interface is complicated, and the algorithm for correcting the angle of atta...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the former scheme are: poor fault tolerance, electrical common faults lead to the failure of the angle of attack, and the fly-by-wire control system cannot complete the task, resulting in low system reliability; The side mechanical angle of attack is invalid, while the cost of the sensor is high, the mechanical interface is complicated, and the algorithm of the angle of attack correction is complicated

Therefore, the conventional fly-by-wire control system angle of attack sensor configuration cannot meet the system reliability requirements