基于新型网络分布式架构的飞控系统故障容错方法

doi:10.7527/S1000-6893.2025.32525

Abstract

Abstract:

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 computational resources and communication capabilities， making it difficult to meet the demands for high integration and intelligence 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 demonstrate 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 tolerance as the core， achieving fault-tolerant operation with information-level fault tolerance as the foundation and function-level fault tolerance as the core.

Key words: distributed architecture, fault-tolerant, flight control system, Directed Acyclic Graph （DAG）, TTE network, EFT algorithm, PB algorithm

CLC Number:

V249

Yuwei CUI, Xianfeng MENG, Sicheng ZHANG, Aijun LI. A fault-tolerant method for flight control system based on new network distributed architecture[J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(9): 532525.

Figures/Tables 17

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序号	任务名称	计算开销/μs
序号	任务名称	p₁	p₂	p₃	p₄
1	虚拟入口任务	0.1	0.1	0.1	0.1
2	模拟传感器信号采集	432	432	432	432
3	离散开关信号采集	72	72	72	72
4	舵机1信号接收	72	72	72	72
5	舵机2信号接收	72	72	72	72
6	舵机3信号接收	72	72	72	72
7	大气数据传感器（总线1）信号采集	320	320	320	320
8	惯性测量组件（总线2）信号采集	253	253	253	253
9	模拟/离散输入信号表决	1 231	1 231	1 231	1 231
10	舵机信号表决	461	461	461	461
11	大气数据传感器（总线1）信号表决监控	809	809	809	809
12	惯性测量组件（总线2）信号表决监控	405	405	405	405
13	控制律计算	2 676	2 676	2 676	2 676
14	舵机控制指令信号输出	470	470	470	470
15	舵机控制指令信号监控	171	171	171	171
16	模拟/离散输入信号监控	456	456	456	456
17	计算机监控与管理	117	117	117	117
18	虚拟出口任务	0.1	0.1	0.1	0.1

任务	通信开销/μs
任务	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
1	0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0	0	0	0	0	0	0	0	0	0
2	0	0	0	0	0	0	0	0	768	0	0	0	0	0	0	768	0	0
3	0	0	0	0	0	0	0	0	128	0	0	0	0	0	0	0	0	0
4	0	0	0	0	0	0	0	0	0	128	0	0	0	0	0	0	0	0
5	0	0	0	0	0	0	0	0	0	128	0	0	0	0	0	0	0	0
6	0	0	0	0	0	0	0	0	0	128	0	0	0	0	0	0	0	0
7	0	0	0	0	0	0	0	0	0	0	384	0	0	0	0	0	0	0
8	0	0	0	0	0	0	0	0	0	0	0	512	0	0	0	0	0	0
9	0	0	0	0	0	0	0	0	0	0	0	0	224	0	0	0	0	0
10	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.1
11	0	0	0	0	0	0	0	0	0	0	0	0	96	0	0	0	0	0
12	0	0	0	0	0	0	0	0	0	0	0	0	128	0	0	0	0	0
13	0	0	0	0	0	0	0	0	0	0	0	0	0	96	96	0	0	0
14	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.1
15	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	16	0
16	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.1
17	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.1
18	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

A fault-tolerant method for flight control system based on new network distributed architecture

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