基于新型网络分布式架构的飞控系统故障容错方法OA

The flight control system is a critical component of aircraft,responsible for core functions such as attitude stabilization,trajectory control,and fault disposal.However,centralized flight control systems are constrained by com-putational resources and communication capabilities,making it difficult to meet the demands for high integration and in-telligence in modern flight control systems.Meanwhile,distributed flight control systems suffer from single-point faults in bus control nodes.To address these issues,a highly fault-tolerant distributed flight control system architecture based on Time-Triggered Ethernet(TTE)networks is proposed,and fault diagnosis and fault tolerance within this framework are investigated.A task scheduling model for the distributed system is modeled using a Directed Acyclic Graph(DAG),enabling the onboard computer cluster to perform fault-tolerant scheduling of complex flight control and management tasks.Furthermore,a distributed semi-physical verification environment based on network protocols is constructed to validate the fault-tolerant operation of the networked distributed system architecture.Results demon-strate that the proposed networked distributed architecture and its system fault-tolerant operation algorithms enhance fault-tolerant capabilities while adapting to future information exchange demands of advanced flight control systems,achieving fault-tolerant operation with information-level fault tolerance as the foundation and function-level fault toler-ance as the core,achieving fault-tolerant operation with information-level fault tolerance as the foundation and function-level fault tolerance as the core.