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本研究的主要目的是在保障可靠性需求的前提下,减少飞行控制系统设计中的硬件冗余。所提出的策略主要包括:信息冗余、解析冗余、时间冗余、气动冗余等。将信息冗余从编码范畴扩展到飞控系统线路与传感器故障的检测,同时在充分分析飞控系统信号之间的关系的基础上,给出了它们之间的转换关系,讨论了时间冗余对瞬态故障抑制的作用,并研究了控制面间气动冗余的相互补偿作用。所提供的故障诊断与信号重构方法几乎涉及飞控系统所有重要信号,因此使用这些策略可以降低硬件冗余,同时降低系统复杂度、重量、空间、费用以及研发时间。
The main purpose of this study is to reduce the hardware redundancy in the design of flight control system while ensuring the reliability requirements. The proposed strategies include: information redundancy, analytical redundancy, time redundancy, pneumatic redundancy and so on. The information redundancy is extended from the coding category to the detection of flight control system lines and sensors faults. Based on the analysis of the relationship between the flight control system signals, the conversion relations among them are given. The relationship between time redundancy The role of transient fault suppression and the mutual compensation of the aerodynamic redundancy between control surfaces. The methods provided for troubleshooting and signal reconstruction involve virtually all important signals from the flight control system, so using these strategies can reduce hardware redundancy while reducing system complexity, weight, space, cost, and development time.