摘要
传统故障余度处理方式将故障余度减缓切除,造成飞控计算机子系统的降级,如果剩余的余度再出现故障可能危及飞行安全。有些余度通道故障可以通过重启余度通道来恢复正常运行。通过分析余度通道正常启动流程,以及飞控计算机子系统余度控制应用软件重启流程,研究了双CPU命令监控模式和双命令模式下的重启流程。最后针对仿真设备节点故障、飞控节点故障以及飞控多余度故障进行了实验验证,84个故障验证项经验证测试后全部通过。
The traditional fault redundancy process method is delayed excision,which causes degradation of flight control computer subsystem.If the residual redundancy fails again,the flight safety may be compromised.Some redundant channel faults can be restored to normal operation by restarting the redundant channel By analyzing the normal startup process of the redundancy channel and the restart process of the redundancy control application software in the flight control computer subsystem,the restart process in the dual-CPU command-monitor mode and the dualcommand mode was studied.Finally,the simulation equipment node fault,flight control node fault and flight control redundancy fault were verified by experiments,and all 84 fault verification items passed the verification test.
作者
刘鑫
韩建辉
LIU Xin;HAN Jianhui(AVIC The First Aircraft Institute,Xi'an 710089,China)
出处
《民用飞机设计与研究》
2023年第4期50-56,共7页
Civil Aircraft Design & Research
关键词
飞控计算机
余度管理
CPU运行模式
重启
flight control computer
redundancy management
CPU operating mode
restart