擺式列車加速度檢測系統(tǒng)中的傳感器容錯研究

準確可靠地獲得剩余離心加速度對于擺式列車正確傾擺和安全運行至關(guān)重要。計算了加速度檢測系統(tǒng)在給定可靠性下的最優(yōu)并聯(lián)傳感器數(shù), 針對傳感器的失效過程和形式, 確定了傳感器故障的決策邏輯和故障判斷的門限參數(shù)。實例仿真表明, 多單元硬件冗余和相應(yīng)的故障決策邏輯對于提高擺式列車剩余離心加速度檢測的可靠性是切實可行的。
關(guān)鍵詞: 容錯; 可靠性; 傳感器; 擺式列車
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