TY - GEN
T1 - Avionics architecture interface considerations between constellation vehicles
AU - McCabe, Mary
AU - Baggerman, Clint
AU - Verma, Dinesh
PY - 2009
Y1 - 2009
N2 - In January 2004, the National Aeronautics and Space Administration (NASA) received new strategic guidance for Space Exploration. With this new guidance, the manned spaceflight community was given an exciting opportunity to develop new human qualified space vehicles based on the latest technology and methodology. The scope of NASA's Constellation program encompasses all elements that must work together to successfully complete the mission of returning humans to the moon. These elements include a launch system, crewed vehicle, and landing module, to name a few. Each element within the Constellation Program is considered a separate development project and this has led to the selection of different avionics architectural approaches on different vehicles. Additionally, legacy systems such as the International Space Station must also interface with the Constellation system. Interfaces between these elements (new and legacy), and especially between their avionics systems, must be carefully integrated to ensure mission success. This paper discusses considerations for the interoperability of varying avionics architectures within a complex system of systems such as Constellation. Currently, two of the major elements within the Constellation system are advancing into the design phase: the Orion Crew Exploration Vehicle (CEV) and the Ares I Launch Vehicle. These vehicles have chosen different avionics architecture approaches. The Orion vehicle is implementing an Integrated Modular Avionics (IMA) architecture with high integrity self-checking pair processors for fault management, while the Ares I element is implementing a Federated Avionics architecture with some integrated characteristics and a voting scheme for fault management. This paper discusses implications on the design of each vehicle due to the interface requirement between these two different avionics approaches.
AB - In January 2004, the National Aeronautics and Space Administration (NASA) received new strategic guidance for Space Exploration. With this new guidance, the manned spaceflight community was given an exciting opportunity to develop new human qualified space vehicles based on the latest technology and methodology. The scope of NASA's Constellation program encompasses all elements that must work together to successfully complete the mission of returning humans to the moon. These elements include a launch system, crewed vehicle, and landing module, to name a few. Each element within the Constellation Program is considered a separate development project and this has led to the selection of different avionics architectural approaches on different vehicles. Additionally, legacy systems such as the International Space Station must also interface with the Constellation system. Interfaces between these elements (new and legacy), and especially between their avionics systems, must be carefully integrated to ensure mission success. This paper discusses considerations for the interoperability of varying avionics architectures within a complex system of systems such as Constellation. Currently, two of the major elements within the Constellation system are advancing into the design phase: the Orion Crew Exploration Vehicle (CEV) and the Ares I Launch Vehicle. These vehicles have chosen different avionics architecture approaches. The Orion vehicle is implementing an Integrated Modular Avionics (IMA) architecture with high integrity self-checking pair processors for fault management, while the Ares I element is implementing a Federated Avionics architecture with some integrated characteristics and a voting scheme for fault management. This paper discusses implications on the design of each vehicle due to the interface requirement between these two different avionics approaches.
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U2 - 10.1109/DASC.2009.5347562
DO - 10.1109/DASC.2009.5347562
M3 - Conference contribution
AN - SCOPUS:77951055035
SN - 9781424440788
T3 - AIAA/IEEE Digital Avionics Systems Conference - Proceedings
SP - 1.E.21-1.E.210
BT - 28th Digital Avionics Systems Conference
T2 - 28th Digital Avionics Systems Conference: Modernization of Avionics and ATM-Perspectives from the Air and Ground, DASC 2009
Y2 - 25 October 2009 through 29 October 2009
ER -