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Aircraft overload tracking method by adopting correction network to replace angular accelerometer

A technology of angular accelerometer and correction network, which is applied in the field of aircraft control, can solve problems such as the difficulty of accurate measurement of angular accelerometer, reduce the economic cost of aircraft overload control, and achieve the effect of saving control cost and high economic value

Active Publication Date: 2020-04-10
NAVAL AVIATION UNIV
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Problems solved by technology

[0004] The object of the present invention is to provide an aircraft overload tracking method that uses a calibration network instead of an angular accelerometer, and then at least to a certain extent overcomes the difficulty of accurately measuring the angular accelerometer due to the limitations and defects of the related technology, and can reduce the number of aircraft. The Economic Cost of Overload Control

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  • Aircraft overload tracking method by adopting correction network to replace angular accelerometer
  • Aircraft overload tracking method by adopting correction network to replace angular accelerometer
  • Aircraft overload tracking method by adopting correction network to replace angular accelerometer

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Embodiment Construction

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solutions have not been shown or descr...

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Abstract

The invention, which belongs to the technical field of aircraft control, relates to an aircraft overload tracking method by adopting a correction network to replace an angular accelerometer. A linearaccelerometer is adopted to measure lateral overload of an aircraft and compare the lateral overload with an overload instruction to obtain an overload error, and then integral and nonlinear transformation is performed to obtain a nonlinear comprehensive signal. A correction signal of an error signal is obtained through a differential equation, a nonlinear integral signal is obtained through nonlinear transformation, and then overload error signals are superposed to form a linear comprehensive signal. An angular rate signal of the aircraft is measured by a gyroscope; a correction network is constructed to realize an alternative signal of the angular acceleration; and nonlinear transformation is carried out to obtain a nonlinear signal of an angular rate, and the three signals form a correction comprehensive signal. And then an aircraft yaw angle expected signal is formed by three types of comprehensive signals, and an attitude stabilization loop is driven to track, thereby realizing overload tracking. According to the method, aircraft overload control can be realized based on angular accelerometer prevention.

Description

technical field [0001] The invention belongs to the field of aircraft control, and in particular relates to a flight control system design method for aircraft attitude stabilization and overload tracking, and a control method using a correction network instead of an angular accelerometer. Background technique [0002] Although overload control is far from being widely used in most aircraft like traditional attitude stabilization control, overload control has been well applied in many unmanned aerial vehicles with high maneuverability requirements. Among the various overload control methods, the angular accelerometer and overload measurement schemes account for a part, but the angular acceleration measurement has two disadvantages. One is that the angular acceleration of the aircraft changes very quickly, and it is difficult to measure it accurately. The other is that the use of angular accelerometers also greatly increases the control cost, which makes many low-cost small un...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08
CPCG05D1/0825
Inventor 李恒雷军委陈黎明张建肖支才王玲玲孟蕾
Owner NAVAL AVIATION UNIV
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