机载机电管理系统通道故障逻辑设计

The Design of Channel-Failure-Logic for the Airborne Electromechanical System

摘要:

机载机电系统是保障飞机正常运行的重要系统,为了提高双通道机电管理系统的任务可靠性,对系统容错和重构管理技术进行研究,提出了一种适用于机载双通道机电管理系统的通道故障逻辑设计。该设计的特点在于以本通道自监控策略为核心,并结合它通道的辅助监控和强制切除能力,实现故障的准确定位和有效隔离,从而避免故障影响的进一步扩散,同时该设计还具备故障复位能力,进一步提高系统冗余度。从分析和仿真结果可以看出,该设计有效地提高了双通道机电管理系统的稳定性和任务可靠性,并且可以应用到更高余度通道的系统中,具有良好的应用前景。

Abstract:

Electromechanical system is an important system to ensure the normal operation of the aircraft. In order to improve the reliability of the double redundancy electromechanical management system, this paper studies on the techniques of system fault-tolerance and reconfiguration management, and present a design of Channel-Failure-Logic for airborne double redundancy electromechanical management system. The features of this design is it takes the self-monitoring strategy as the core, and combines the other channel’s auxiliary monitoring and forced resection, to realize accurate location and effective isolation of failure, thereby avoiding the further diffusion of failure effect. Meanwhile, the design has the function of fault reset, which can improve the redundancy of the system. Analysis and simulation results show that, this design can effectively improve the stability and reliability the double redundancy electromechanical management system, and it can be applied to higher redundancy system, thus it has a good application prospect.