基于双余度襟缝翼计算机架构，首先提出和值监控算法确认襟缝翼控制手柄信号本身的有效性，然后提出交叉匹配表决算法表决出最终有效的手柄卡位信号。但该算法受手柄精度、信号传输时间等影响较大，容易导致襟缝翼系统出现半速运动。为提高算法鲁棒性，进一步提出一种改进的襟缝翼手柄信号表决算法：当一路和其他三路通道信号不一致时，以多数通道一致卡位为准；当两两通道信号不一致时，以发生改变的通道一致卡位为准；当发生以上两种不一致现象超过三次时，故障锁存，不一致的卡位指令将会触发半速告警，避免出现隐藏故障。以上几种场景在MATLAB & Simulink环境下，进行建模仿真验证，结果符合预期，可为襟缝翼计算机的设计提供参考。
Based on the dual redundancy flaps slat electronic control unit (FSECU) architecture, a sum monitoring algorithm was first proposed to confirm the validity of the flaps slat control lever (FSCL), and then a cross matching voting algorithm was proposed to vote the final valid detent signal. However, this algorithm was greatly affected by the accuracy of the handle and the signal transmission time, and it was easy to cause the flaps and slat system to move at half speed. In order to improve the robustness of the algorithm, an improved voting algorithm of FSCL was further proposed. When the signals of one channel and the other three channels are inconsistent, the detent of most channels shall prevail. When the signals of the two channels are inconsistent, the detent of the changed channel shall prevail. When the above two cases occur more than three times, the fault is latched, and the bad detent signal will trigger a half-speed alarm to avoid hidden faults. The above scenarios are verified by modeling and simulation in MATLAB&Simulink environment, and the results are in line with expectations, which can provide reference for the design of FSECU.
曹雅雯,严少波,曹俊章.民用飞机襟缝翼手柄信号监控表决方法研究[J].民用飞机设计与研 究,2022(4):71-76CAO Yawen, YAN Shaobo, CAO Junzhang. The monitoring and voting method of flaps slat control lever signal of civil aircraft[J]. Civil Aircraft Design and Research,2022,(4):71-76. ( in Chinese)复制