A method for pressure detection and tire burst prevention of an airplane wheel brake system comprises the following steps: judging whether a pressure closed loop exists or not, and judging an error range between actual brake pressure and a brake pressure instruction according to pressure deviation conditions of different pedal displacement sensors, a brake controller, a servo valve and a pressure sensor; therefore, the purpose of detecting the abnormal pressure and the excess pressure of the airplane wheel braking system is achieved, the accuracy of judging the abnormal pressure of the airplane wheel braking system is improved, and the fault detection rate of the braking control system is improved by 5%. And the residual pressure is eliminated according to the judged residual pressure condition, so that the problem of tire burst caused by tire release of the airplane due to residual pressure braking is avoided, the safety of an airplane braking system is improved, and the safety of a braking control system is improved to 1.9 E-11. According to the invention, an existing airplane wheel brake system does not need to be improved, and the fault detection difficulty and detection cost of the airplane wheel brake system are reduced.
一种飞机机轮刹车系统压力检测及预防爆胎的方法,通过判断有无压力闭环,根据不同脚蹬位移传感器、刹车控制器、伺服阀、压力传感器的压力偏差情况,判断实际刹车压力和刹车压力指令之间的误差范围,以确定所述机轮刹车系统刹车压力是否正常,从而实现了对机轮刹车系统的压力异常和余压检测的目的,提高了机轮刹车系统刹车压力异常判断的准确性,刹车控制系统故障检测率提升了5%。根据判断的余压情况,对余压进行消除,避免了因余压刹车导致的飞机脱胎造成的爆胎问题的,提高了飞机刹车系统的安全性,刹车控制系统安全性提升到1.9E‑11。本发明无需改进现有机轮刹车系统,降低了实施机轮刹车系统的故障检测的难度和检测成本。
Method for pressure detection and tire burst prevention of airplane wheel brake system
一种飞机机轮刹车系统压力检测及预防爆胎的方法
2024-06-14
Patent
Electronic Resource
Chinese
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