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Improving Fault-Tolerance of IMA using Safe Dynamic Reconfiguration

Schubert, Tim and Friedrich, Sven and Zaeske, Wanja Marlo Moritz and Durak, Umut (2024) Improving Fault-Tolerance of IMA using Safe Dynamic Reconfiguration. CEAS Aeronautical Journal. Springer. ISSN 1869-5590. (Unpublished)

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IMA is a central element of modern aircraft. It enables vendors to develop individual software and hardware compo- nents mostly independently from each other and integrate them using standardized interfaces, thereby reducing costs and shortening development cycles. Ensuring safety and fault-tolerance in systems of increasing complexity continues to present challenges to system integrators, requiring redundant deployments of many components. The software components are usually executed using a hypervisor based on ARINC 653 APEX services that provide the safety barriers necessary to ensure a deterministic runtime behavior. We present an approach that allows us to reduce the number of redundant partition deployments and improve fault-tolerance by exploiting these standardized interfaces to allow for safe run-time reconfiguration. We show how location-independence of APEX partitions can be achieved using a set of networked message routers that facilitate the communication between partitions without violating their functional real-time constraints or requiring changes to the partitions themselves.

Item URL in elib:https://elib.dlr.de/202058/
Document Type:Article
Title:Improving Fault-Tolerance of IMA using Safe Dynamic Reconfiguration
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schubert, TimUNSPECIFIEDhttps://orcid.org/0009-0008-3002-4739UNSPECIFIED
Friedrich, SvenUNSPECIFIEDhttps://orcid.org/0009-0003-4258-8148UNSPECIFIED
Zaeske, Wanja Marlo MoritzUNSPECIFIEDhttps://orcid.org/0000-0002-1427-2627UNSPECIFIED
Durak, UmutUNSPECIFIEDhttps://orcid.org/0000-0002-2928-1710UNSPECIFIED
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:DIMA, Reconfiguration, Aeronautical Radio, Incorporated (ARINC) 653, Real-Time
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Synergy Project Resilience of Intelligent Cyber-Physical Systems of Systems
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Safety Critical Systems&Systems Engineering
Institute of Flight Systems
Deposited By: Schubert, Tim
Deposited On:26 Jan 2024 10:04
Last Modified:01 Apr 2024 03:00

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