Triple-triple redundant 777 primary flight computer
Top Cited Papers
- 23 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 293-307 vol.1
- https://doi.org/10.1109/aero.1996.495891
Abstract
The flight control system for the Boeing 777 airplane is a Fly-By-Wire (FBW) system. The FBW system must meet extremely high levels of functional integrity and availability. The heart of the FBW concept is the use of triple redundancy for all hardware resources: computing system, airplane electrical power, hydraulic power and communication path. The Primary Flight Computer (PFC) is the central computation element of the FBW system. The triple modular redundancy (TMR) concept also applies to the PFC architectural design. Further, the N-version dissimilarity issue is integrated to the TMR concept. The PFCs consist of three similar channels (of the same part number), and each channel contains three dissimilar computation lanes. The 777 program design is to select the ARINC 629 bus as the communication media for the FBW.Keywords
This publication has 11 references indexed in Scilit:
- INTERACTIVE CONSISTENCY AND ITS IMPACT ON THE DESIGN IN TMR SYSTEMSPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- On Fly-by-Wire Control System and statistical analysis of system performanceSIMULATION, 1989
- MAFT - An architecture for reliable fly-by-wire flight controlPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1988
- Commercial jet transport fly-by-wire architecture considerationsPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1988
- Fault tolerant avionicsPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1988
- In search of effective diversity: a six-language study of fault-tolerant flight control softwarePublished by Institute of Electrical and Electronics Engineers (IEEE) ,1988
- Error Detection Process—Model, Design, and Its Impact on Computer PerformanceIEEE Transactions on Computers, 1984
- The Byzantine Generals ProblemACM Transactions on Programming Languages and Systems, 1982
- FTMP—A highly reliable fault-tolerant multiprocess for aircraftProceedings of the IEEE, 1978
- SIFT: Design and analysis of a fault-tolerant computer for aircraft controlProceedings of the IEEE, 1978