The invention relates to the technical field of aircraft environment control, in particular to a fault diagnosis method for a pneumatic cabin pressure regulator under the condition of ultrahigh cabin excess pressure. A control mechanism and an execution mechanism of the pneumatic cabin pressure regulator are in indirect control, a real-time proportion value is obtained by setting proportion threshold values and collecting atmospheric static pressure, cabin pressure and control cavity pressure, and the two threshold values are compared, so that a fault diagnosis conclusion is obtained. By means of the fault diagnosis method, whether the cabin pressure regulator breaks down or not can be rapidly positioned, it is guaranteed that the fault position is accurately removed, the fault analysis and confirmation time is shortened, the troubleshooting efficiency is improved, the situation that the fault cannot be removed for a long time is avoided, and the perfectness ratio of an airplane is increased.
本发明涉及飞机环境控制技术领域,涉及座舱余压超高条件下气动座舱压力调节器的故障诊断方法。所述气动座舱压力调节器的控制机构和执行机构之间为间接式控制,通过设置比例阈值,采集大气静压,座舱压力,控腔压力得到实时比例值,比较两个阈值的大小,从而获得故障诊断结论。通过本发明的故障诊断方法,能够实现快速的定位是否座舱压力调节器故障,保证准确排除故障部位,减少了故障分析确认时间,提升了排故效率,避免了故障长时间不能排除问题,增加了飞机完好率。
Fault diagnosis method for pneumatic cabin pressure regulator under ultrahigh cabin excess pressure condition
座舱余压超高条件下气动座舱压力调节器的故障诊断方法
2025-02-21
Patent
Electronic Resource
Chinese
Fault diagnosis method for pneumatic cabin pressure regulating system
European Patent Office | 2025
|European Patent Office | 2024
|Emerald Group Publishing | 1956
|Emerald Group Publishing | 1960
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