A real-time optimization method for controlling channel rudder command clipping

Abstract

The invention discloses a real-time optimization method for controlling amplitude limit of channel rudder instructions. According to the real-time optimization method, optimization is carried out on the basis of preset fixed amplitude limit values of three channel rudder instructions. The real-time optimization method comprises the following steps: S1, determining the sequence of carrying out real-time dynamical optimization on the amplitude limit values of the three channel rudder instructions; S2, setting the fixed amplitude limit value of the first channel rudder instruction; S3, calculating a real-time amplitude limit value of the second channel rudder instruction according to a real-time output value of the first channel rubber instruction subjected to amplitude limit; S4, calculating a real-time amplitude limit value of the third channel rudder instruction according to the real-time output values of the first channel rudder instruction and the second channel rudder instruction subjected to the amplitude limit. The real-time optimization method disclosed by the invention has the advantages that rudder surface control resources can be sufficiently utilized, the integral control capacity of the system is enhanced and the like.

Description

technical field [0001] The invention mainly relates to the field of aircraft control, in particular to a real-time optimization method for limiting the rudder command of a control channel. Background technique [0002] Rudder systems such as air rudders and gas rudders are commonly used actuators for aircraft. The "×" layout is the most common rudder surface layout. The four rudder surfaces are evenly and symmetrically arranged around the body of the aircraft. Each rudder surface deflects a certain angle according to the control command, and the force on the body is changed through the linkage of the four rudder surfaces. situation, thereby controlling the flight of the aircraft. Generally speaking, the greater the deflection angle of the rudder surface, the greater the aerodynamic force acting on the rudder surface, and the stronger the control system's ability to control the airframe. However, when the deflection angle of the rudder surface is too large, the aerodynamic ...

AI Technical Summary

Problems solved by technology

This makes when a certain control channel needs a large control rudder deflection output, it is limited by the output of the channel rudder deflection, but the actual deflection of the four rudder surfaces does not have the maximum deflection angle, which wastes a certain amount of control resources virtually.

Although this method of imposing a fixed limit on the output of the channel rudder simplifies the design of the controller, it also restricts the ability of the control system to control the airframe

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