Reference : Virtual Verification of Cause-Effect Chains in Automotive Cyber-Physical Systems
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Virtual Verification of Cause-Effect Chains in Automotive Cyber-Physical Systems
Gonzalez de Oliveira, Ricardo mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > >]
Raghupatruni, Indrasen [Robert Bosch GmbH]
Hamman, Arne [Robert Bosch GmbH]
Henkel, Achim [Robert Bosch GmbH]
21. Internationales Stuttgarter Symposium
21st Stuttgart International Symposium
30-03-2021 to 31-03-2021
FKFS events
[en] Cyber-Physical Systems ; Simulation ; Automotive ; Ethernet ; E/E architecture ; Cause-Effect Chains ; performance ; timing ; HAD
[en] The technical complexity of automotive Cyber-Physical Systems (CPS) traditionally demands high development and validation efforts. Due to the new technologies entering the automotive market, such as Highly Automated Driving (HAD) (>= SAE L3) and connected infotainment, the overall system complexity is currently increasing significantly, challenging traditional system development methods and requiring new approaches for validation and verification (V&V). In parallel, new Electric/Electronic (E/E) architecture patterns are emerging in the automotive industry, distributing the functionalities across several multi-core Electrical Control Units (ECU) connected via Ethernet-based in-vehicle networks. This distributed approach leads to complex inter- and intra-ECU timing relations challenging the concept of freedom from interference according to the ISO 26262, and adding another dimension of effects analysis during V&V. This work enhances a cyber-physical functional simulation tool to include timing effects in distributed cause-effect chains and multi-technology-communication networks (incl. Ethernet and CAN). The resulting simulation allows the system designer to evaluate the impact of timing properties on a given distributed vehicle function, enabling an early validation of the system, avoiding rework during later stages of the development process resulting from wrong design choices.
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