Airplane brake system and static brake protection control method

Abstract

Disclosed are an airplane brake system and a static brake protection control method. When a simulated airplane speed is lower than a preset static brake control secure threshold, an antiskid control box enables a static brake protection relay to be connected, and otherwise, the antiskid control box enables the static brake protection relay to be disconnected; the static brake state of an airplane is determined according to on-off signals of the static brake protection relay; aerial / ground states of the airplane are determined through a first landing switch and a second landing switch; and a static brake subsystem achieves the function of airplane static brake protection through the special control logic according to the speed state and the aerial / ground states of the airplane. The static brake function and the ground connection protection function of the airplane are separated thoroughly, the problem that the static brake subsystem outputs the static brake pressure under the condition that the ground connection protection function of the airplane loses efficacy is solved, and meanwhile the situation that when the airplane lands, the static brake pressure is output due to the fact that a pilot mistakenly pulls a static brake switch, and consequently, the tire bursting accident of brake mainframe wheels occurs is avoided.

Description

technical field [0001] The invention relates to the technical field of aircraft braking, in particular to an aircraft braking system with a static braking protection function and a design method thereof. Background technique [0002] The static brake pressure of the aircraft is greater than or equal to the normal brake pressure. The brake system is equipped with a separate static brake subsystem. The static brake switch 2 is used to control the static brake function of the aircraft; The source 12 is directly connected with the braking device of the aircraft braking wheel 6 to realize static braking of the aircraft. see details figure 1 Schematic diagram of static braking system for multi-wheel train aircraft. [0003] The static brake subsystem is composed of two-position three-way solenoid valve 1, static brake switch 2, landing gear landing switch 3, conversion valve 4, quantitative device 5, brake wheel 6, and anti-skid control box 7. When the static brake switch 2 is ...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages in the prior art that the signals of the first landing switch and the second landing switch cannot enter the anti-skid control box to participate in the control of the static braking protection function, resulting in the failure of the aircraft static braking protection function, the present invention proposes an aircraft braking system and Control method of static brake protection

Images