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意外紧急制动(UDE)是近年来AAR货车制动系统的一大难题。文中概述了自1984年以来意外紧急制动的研究成果,重点介绍了在美国普韦布洛运输试验中心(TTC)进行的列车运行和室内试验结果。结论认为,仅列车冲动就能引起>210kPa/s的BP急速脉冲减压;在管座或紧急部顶盖设适当节流孔,有助于解决UDE问题而不影响紧急性能,但对某些常用制动的影响不容忽视;至关重要的是,必须改进目前的空气制动试验规则。
Accidental emergency braking (UDE) is a major challenge for AAR truck braking systems in recent years. The article outlines the findings of an accidental emergency brake since 1984, highlighting the results of train operations and laboratory tests at the Pueblo Transit Test Center (TTC) in the United States. The conclusion is that only rapid trains of BP> 210 kPa / s can cause rapid BP pulse depressurization. It is helpful to solve the UDE problem without affecting the emergency performance by providing proper throttle in the header or emergency roof. However, for some The effects of common braking can not be ignored; it is essential that current air braking test rules have to be improved.