Division for Traffic Safety and Reliability

Reliability of redundant architectures

In the realm of reliability engineering, redundant architectures like MooN (M out of N) and other parallel and majority architectures stand as pillars in safety-critical industries such as aerospace, rail transportation, nuclear energy, and autonomous driving. These architectures, designed with fault tolerance and self-diagnosis capabilities, ensure uninterrupted operation even in the face of component failures. Fail-operational systems maintain functionality despite faults, crucial for applications where downtime is not an option, like in autonomous vehicles. Fail-safe systems prioritize safety by reverting to a predefined safe state upon failure, essential for nuclear reactors and critical transportation systems. Dynamic reconfiguration allows systems to adapt in real-time, redistributing tasks and resources to maintain performance and safety. As these industries demand ever-higher standards of reliability and safety, the continued advancement of redundant architectures and fault-tolerant systems promises to complex infrastructures and complex dynamic systems against potential hazards.

T. M. Julitz, A. Tordeux and M. Löwer, "Computer-aided design of fault-tolerant hardware architectures for autonomous driving systems", Proceedings of the Design Society, vol. 3, pp. 1047-1056, 2023. Cambridge University Press.
T. M. Julitz, A. Tordeux and M. Löwer, "Reliability of Fault-Tolerant System Architectures for Automated Driving Systems" in Proceedings of the 32nd European Safety and Reliability Conference (ESREL 2022), 2022, pp. 120-127.

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