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Challenges with the Introduction of X-By-Wire Technologies to Passenger Vehicles and Light Trucks in regards to Functional Safety, Cybersecurity and Availability
Technical Paper
2023-01-0581
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Classic vehicle production had limitations in bringing the driving commands to the actuators for vehicle motion (engine, steering and braking). Steering columns, hydraulic tubes or steel cables needed to be placed between the driver and actuator.
Change began with the introduction of e-gas systems. Mechanical cables were replaced by thin, electric signal wires. The technical solutions and legal standardizations for addressing the steering and braking systems, were not defined at this time.
Today, OEMs are starting E/E-Architecture transformations for manifold reasons and now have the chance to remove the long hydraulic tubes for braking and the solid metal columns used for steering.
X-by-wire is the way forward and allows for higher Autonomous Driving (AD) levels for automated driving vehicles. This offers new opportunities to design the vehicle in-cabin space.
This paper will start with the introduction of x-by-wire technologies. It will cover the three aspects of the transformation from line to wire; functional safety (fail operational), security, and availability.
It will also provide examples of two different implementation approaches, one from a classic OEM with a basic platform vehicle architecture and concept, and the other from the start-up company, REE Automotive, with their skateboard architecture and brand-new concept of REEcornerâ„¢ Vehicle Motion.
Authors
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Citation
Scheibert, K., Kostarigka, A., Dannebaum, U., Ambekar, A. et al., "Challenges with the Introduction of X-By-Wire Technologies to Passenger Vehicles and Light Trucks in regards to Functional Safety, Cybersecurity and Availability," SAE Technical Paper 2023-01-0581, 2023, https://doi.org/10.4271/2023-01-0581.Also In
References
- Ambekar , A. , Schneider , R. , Schmidt , K. , and Dannebaum , U. Future of Automotive Embedded Hardware Trust Anchors (AEHTA) SAE Technical Paper 2022-01-0122 2022 https://doi.org/10.4271/2022-01-0122
- Kelling , N. and Leteinturier , P. X-by-Wire: Opportunities, Challenges and Trends SAE Technical Paper 2003-01-0113 2003 https://doi.org/10.4271/2003-01-0113
- Bandur , V. , Kapinski , R. , Pantelic , V. , Lawford , M. et al. Aspects of Migrating from Decentralized to Centralized E/E Architectures SAE Technical Paper 2022-01-0747 2022 https://doi.org/10.4271/2022-01-0747
- Bandur , V. , Pantelic , V. , Dawson , M. , Schaap , A. et al. A Domain-Centralized Automotive Powertrain E/E Architecture SAE Technical Paper 2021-01-0786 2021 https://doi.org/10.4271/2021-01-0786
- Kohn , A. , Schmidt , K. , Decker , J. , Sebastian , M. et al. Timing Analysis for Hypervisor-based I/O Virtualization in Safety-Related Automotive Systems SAE Int. J. Passeng. Cars – Electron. Electr. Syst. 10 2 2017 368 379 https://doi.org/10.4271/2017-01-1621
- Yu , D. and Xiao , A. The Digital Foundation Platform -A Multi-Layered SOA Architecture for Intelligent Connected Vehicle Operating System SAE Technical Paper 2022-01-0107 2022 https://doi.org/10.4271/2022-01-0107