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飞控计算机是自动飞行控制系统数据处理、控制和综合的核心,其可靠性对飞机的飞行安全有着至关重要的影响。通常采用余度设计提升飞行控制系统的可靠性和容错能力,余度设计的关键技术就是余度管理策略和方法,系统的故障容错能力主要是通过余度管理功能来实现的。针对本文提出的双双余度飞控计算机架构,详细描述了其余度管理算法的设计流程,采用这样的设计模式使得系统软件架构清晰,结构明确,大大提高了飞控系统安全性和可靠性的要求。
Flight control computer is the core of data processing, control and synthesis of automatic flight control system. Its reliability has a crucial influence on the flight safety of the aircraft. The redundancy design is usually used to improve the reliability and fault tolerance of the flight control system. The key technology of redundancy design is the redundancy management strategy and method. The fault tolerance of the system is mainly realized by the redundancy management function. Aiming at the dual-redundant flight control computer architecture proposed in this paper, the design flow of the redundancy management algorithm is described in detail. With this design mode, the software architecture of the system is clear and the structure is clear, which greatly improves the safety and reliability requirements of the flight control system .