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High-accuracy stick force control method of aircraft active side stick system

A technology of active side stick and control method, which is applied in the field of aircraft control system and high-precision stick force control, and can solve the problems of not analyzing the control method of active side stick force and not being able to distinguish the motion state of the active side stick.

Active Publication Date: 2018-10-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, in previous inventions or papers, either only the rod force in the static state of the active side rod is controlled, and the rod force control method of the active side rod in motion is not analyzed; or the same control structure is used, and the active side rod cannot be distinguished. state of motion

Method used

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  • High-accuracy stick force control method of aircraft active side stick system
  • High-accuracy stick force control method of aircraft active side stick system
  • High-accuracy stick force control method of aircraft active side stick system

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Embodiment Construction

[0074] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0075] The invention discloses a high-precision stick force control method of an active side stick system of an aircraft, such as figure 1 , figure 2 As shown, the active side stick system of the aircraft includes a monitoring module and a side stick module;

[0076] The monitoring module is used to send instructions to the side stick module, and control the storage and display of real-time status information of the side stick module;

[0077] The sidestick module includes an active sidestick, a first micro control unit and a second micro control unit;

[0078] The two-degree-of-freedom mechanical structure of the active side stick is as follows: figure 1 As shown, including active sidestick handle, lever force sensor, active sidestick body, first shaft, second shaft, first bearing and second bearing;

[0079] The first shaft and the second sh...

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Abstract

The invention discloses a high-accuracy stick force control method of an aircraft active side stick system. For an active working mode of an aircraft active side stick, an impedance control strategy based on torque is adopted, and a stick force control method based on expert PID with feedforward is designed; and therefore, the stick force control accuracy is guaranteed. The active side stick correspondingly adopt a high-accuracy stick force sensor and a stick force observer based on a current and friction model in a stable state and a dynamic state to perform stick force closed loop feedback so that the the accuracy of a force feedback signal is guaranteed.

Description

technical field [0001] The invention relates to an aircraft control system, in particular to an active mode control method suitable for active side sticks of civil passenger planes and military planes, relates to high-precision stick force control, and belongs to the field of force feedback control. Background technique [0002] Compared with the passive side stick, the active side stick has the advantages of reducing the life-time cost, providing safety force feedback, function programmable upgrade, and not affecting the observation of the cockpit display; moreover, compared with the traditional center stick, it reduces the mechanical complexity and System weight. This active sidestick is a force-displacement sidestick, which forms a closed loop with the flight control system, and can communicate with the flight control computer in real time. After adopting the active side stick, when the aircraft is in the manual flight state, the pilot can accurately judge its flight sta...

Claims

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Application Information

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IPC IPC(8): B64C13/16
CPCB64C13/16
Inventor 孙永荣王欢陈悦刘闯马婉萍陈磊江
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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