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Aircraft anti-skid brake control method based on brake moment feedback

A technology of anti-skid braking and control method, which is applied in the field of aviation, can solve the problems of lack of adaptability to runway surface state changes, etc., and achieve the effects of improving anti-skid braking efficiency, avoiding wheel skidding, and increasing braking torque

Active Publication Date: 2016-07-13
BEIHANG UNIV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the different indicators corresponding to different runway surface states, this kind of control method lacks the adaptability to the change of runway surface state.

Method used

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  • Aircraft anti-skid brake control method based on brake moment feedback
  • Aircraft anti-skid brake control method based on brake moment feedback
  • Aircraft anti-skid brake control method based on brake moment feedback

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Embodiment Construction

[0023] Embodiments of the present application are described below with reference to the drawings. Elements and features described in one drawing or one embodiment of the present application may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not relevant to the present application and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0024] see figure 1 As shown, it is a schematic flowchart of an embodiment of the aircraft anti-skid braking control method based on braking torque feedback of the present application.

[0025] The aircraft anti-skid braking control method based on braking torque feedback of the present embodiment includes:

[0026] Step 110, detecting the braking torque of the aircraft wheel and the rotational speed of the aircraft wheel.

[0027] In some op...

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Abstract

The invention relates to an aircraft anti-skid brake control method based on brake moment feedback. The aircraft anti-skid brake control method comprises steps as follows: brake moment and revolving speed of aircraft wheels are detected; an actual slip factor is determined on the basis of the brake moment and the revolving speed; the actual slip factor and a slip factor threshold value are compared; if the actual slip factor is equal to the slip factor threshold value, the slip factor threshold value is updated; the brake moment is reduced so as to enable the actual slip factor to be smaller than the updated slip factor threshold value. According to the scheme, skid of the aircraft wheels can be avoided, and the anti-skid brake efficiency of an aircraft under the condition of complicated runway surfaces is improved.

Description

technical field [0001] The present application relates to the field of aviation technology, in particular to an aircraft anti-skid braking control method based on braking torque feedback. Background technique [0002] The take-off and landing of an aircraft are the phases where aircraft accidents occur frequently. The anti-skid brake system is an important airborne equipment of the aircraft, which has an important impact on the safety of the aircraft take-off and landing. It is of great significance to improve the safety and reliability of aircraft to require that the aircraft can still land safely and stop under complex runway environmental conditions. [0003] Aircraft anti-skid braking system is a complex nonlinear system with uncertainty. There are many nonlinear factors in the system, which directly affect the performance of anti-skid braking. The landing and rolling process of the aircraft takes a short time, so the anti-skid braking system is required to work stably...

Claims

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Application Information

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IPC IPC(8): B64C25/46B60T8/17
CPCB60T8/1703B64C25/46
Inventor 焦宗夏孙栋尚耀星刘晓超孙晓辉
Owner BEIHANG UNIV
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