Design considerations in Boeing 777 Fly-By-Wire computers

被引：43
|
作者：
Yeh, YC [1 ]
机构：
[1] Boeing Commercial Airplane Co, Flight Syst, Seattle, WA 98124 USA
来源：
THIRD IEEE INTERNATIONAL HIGH-ASSURANCE SYSTEMS ENGINEERING SYMPOSIUM, PROCEEDINGS | 1998年
关键词：
D O I：
10.1109/HASE.1998.731596
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The new technologies in flight control avionics systems selected for the Boeing 777 airplane program consist of the following: Fly-By-Wire (FBW), ARINC 629 Data Errs, and Deferred Maintenance. The FBW must meet extremely high levels of functional integrity and availability. The heart of the FEW concept is the use of triple redundancy for all hardware resources: computing system, airplane electrical power, hydraulic power and communication paths. The multiple redundant harder are are required to meet the numerical safety requirements. Hardware redundancy can be relied upon only if hardware faults can be contained; fail-passive electronics are necessary building blocks for the FBW systems. In addition, FBW computer architecture must consider other fault tolerance issues: generic errors, common mode faults, near-coincidence faults and dissimilarity.
引用
收藏
页码：64 / 72
页数：9
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