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Reliable Fail-Operational Automotive E/E-Architectures by Dynamic Redundancy and Reconfiguration [in press]

Oszwald, Florian; Obergfell, Philipp; Traub, Matthias; Becker, Jürgen

Abstract (englisch):

For future autonomous driving cars, fail-operational systems are necessary. Dynamical reconfiguration is one possible approach to fulfill this requirement for fail-operational behavior. For automotive real-time embedded systems in a failoperational context, dynamical reconfiguration has not yet been investigated. At first, this paper describes a process to realize this approach in the automotive industry and shows its advantages. Second, we adopt an existing fail-operational architecture to the requirements of the steering function and extend the existing state handover with the CAN communication. For this, we modeled a hardware extension to prevent the system from a loss of state and integrated it into this architecture. Third, we integrate the adapted architecture into a service-oriented architecture, and specify necessary interfaces and protocols. By using a service-oriented approach, we enhance the principle of dynamic redundancy from the component level to the system level. As an evaluation, we provide an implementation on a test bench which reveals indications for the use of our concept in future autonomous driving cars.

Zugehörige Institution(en) am KIT Institut für Technik der Informationsverarbeitung (ITIV)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000097711
Erschienen in Proceedings of the 32nd IEEE International System-on-Chip Conference (SOCC), Singapur, 3 - 6 September 2019
Veranstaltung 32nd IEEE International System-on-Chip Conference (SOCC 2019), Singapur, Singapur, 03.09.2019 – 06.09.2019
Schlagwörter Real-time embedded systems, fail-operational, automotive, dynamical reconfiguration, simulation
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