摆式列车加速度检测系统中的传感器容错研究

准确可靠地获得剩余离心加速度对于摆式列车正确倾摆和安全运行至关重要。计算了加速度检测系统在给定可靠性下的最优并联传感器数, 针对传感器的失效过程和形式, 确定了传感器故障的决策逻辑和故障判断的门限参数。实例仿真表明, 多单元硬件冗余和相应的故障决策逻辑对于提高摆式列车剩余离心加速度检测的可靠性是切实可行的。
关键词: 容错; 可靠性; 传感器; 摆式列车
Abstract: It is vital fo r the safety of t ilt ing t rain to t ilt co rrect ly, and one p recondit ion is to detect the uncom2 pen sated accelerat ion accu rately and reliab ly. The op t im al num ber of sen so rs is compu ted under the set system reliab ility. The sen so rs’ fau lt2decision2m ak ing logic and th resho ld param eters are determ ined w h ile their fau lt p rocess and pat tern s are discu ssed. The real data sim u lat ion show s that the p ro ject and the algo rithm p resen ted in th is paper are p ract ical.
Keywords: fau lt to lerance; reliab ility; sen so r; t ilt ing t rain