Control method for changing flight height of airplane

Abstract

The invention discloses a control method for changing the flight height of an airplane. The control method comprises the following steps of: S1, calculating the difference between a target speed and a current speed; S2, carrying out differential on the difference between the target speed and the current speed in the step S1, and obtaining a first axial overload; carrying out low pass filtering on difference between the target speed and the current speed, then carrying out gaining on the difference after the low pass filtering, and obtaining a second axial overload; carrying out summation on the first axial overload and the second axial overload, and obtaining a total axial overload; S3, calculating a vertical speed corresponding to the difference between the target speed and the current speed in the step S2; S4, constructing a potential energy vertical speed of the airplane; S5, carrying out summation on the vertical speed corresponding to the difference between the target speed and the current speed in the step S3 and the potential energy vertical speed in the step S4, and obtaining a target vertical speed; and S6, controlling the target vertical speed in the step S5, and enabling the airplane to fly according to a preset control rule. The control method has the advantages that when the airplane changes the flight height, both the vertical speed and the speed are considered at the same time.

Description

technical field [0001] The invention relates to the technical field of flight control, in particular to a control method for changing the flying height of an aircraft. Background technique [0002] The change of the flight level of the aircraft is to automatically control the aircraft to climb or descend from one level to another level. During the process of changing the flight level of the aircraft, the elevator maintains the airspeed and the throttle maintains the thrust. In the past, the automatic change of the flight altitude of the aircraft was mostly by controlling the vertical speed of the aircraft to make the aircraft climb or descend to the target altitude. This control method has certain safety hazards. The speed is the target vertical speed and the flight speed is ignored. In order to ensure the vertical speed, the flight speed may drop to a very low level, resulting in a stall. Contents of the invention [0003] The object of the present invention is to provid...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of control method of changing the flying height of the aircraft, when changing the flying height of the aircraft, the flying speed and the vertical speed can be taken into account, so as to solve or at least alleviate at least one problem existing in the background technology

Images