Airborne brake air cooling system with automatic control function and control method thereof

Abstract

The invention provides an airborne brake air cooling system with an automatic control function and a control method thereof. A landing gear lowering position end point switch is changed into a left landing gear landing switch and a right landing gear landing switch; an aircraft air / land state is determined by using the left landing gear landing switch and the right landing gear landing switch; byusing an aircraft anti-skid brake control box, a speed signal output by an aircraft wheel speed sensor is collected to determine an aircraft high / low speed state; by using the aircraft high / low speedstate and the aircraft air / land state, an automatic control logic of the airborne brake air cooling system is determined; by using a time relay, the total working time of the airborne brake air cooling system is automatically controlled; a braking aircraft wheel can be reliably cooled in time after an aircraft lands on the ground; and the taking-off and landing period of the aircraft can be shortened from 60-90 min to 30 min so as to shorten the aircraft taking-off and landing time, and therefore, the aircraft taking-off and landing frequency is increased. Meanwhile, the energy is saved, and the labor intensity of the ground crew is reduced.

Description

technical field [0001] The invention relates to the field of aircraft brake systems, in particular to an air-mounted brake air-cooling system with an automatic control function for the aircraft brake system and a design method thereof. Background technique [0002] The brake wheels of the second-generation and third-generation aircraft in active service mostly use metal-based powder alloy brake materials; in order to ensure the aircraft's duty cycle, water-cooled or air-cooled ground equipment is used to forcibly cool the brake wheels to achieve rapid cooling of the brake wheels. [0003] The take-off speed, landing weight and braking speed of the new generation of aircraft have been significantly improved. Due to the substantial increase in the braking energy of the aircraft, the temperature of the heat reservoir after braking is higher. Therefore, the widely used The C / C composite brake material and C / Si composite brake material with the advantages of long life have overco...

AI Technical Summary

Problems solved by technology

[0009] However, this invention is to use the cooling plate and the air inlet joint to guide the cooling gas into the air hole of the aircraft wheel for cooling. If holes are drilled on the aircraft wheel, the structural strength of the aircraft wheel will be reduced. The air source cools the aircraft wheels, which increases the labor intensity of the staff, delays the cooling time of the aircraft wheels, and easily causes the aircraft wheels to blow out in summer

The specific reasonable value of the temperature warning value setting and the specific requirements for the automatic start and stop of the air cooling system are not clearly stated

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