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Design Principles for Emerging Multi-Cluster Automotive Networks
Technical Paper
2006-01-1555
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper we investigate the consequences of cross network data dependency in multi-cluster automotive networks and propose a concept for breaking the time coupling between networks in order to manage the complexity and facilitate a divide-and-conquer approach. We will show that by increasing the frequency of the data exchange the need for tight time coupling across network boundaries is removed and so-called phase insensitivity is achieved. If the interaction between any two functions is phase insensitive, then the functions can be scheduled in both ECUs without needing to take phase alignment of the schedule within each ECU into account, which reduces the complexity of managing cross-network data exchange. The paper contains the derivation of the condition for phase insensitivity and a discussion of its applicability to automotive multi-cluster networks along with an analysis of the advantages and shortcomings of the phase insensitive approach as opposed to phase alignment, with a particular focus on FlexRay.
Citation
Temple, C. and Nossal, R., "Design Principles for Emerging Multi-Cluster Automotive Networks," SAE Technical Paper 2006-01-1555, 2006, https://doi.org/10.4271/2006-01-1555.Also In
SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Number: V115-7; Published: 2007-03-30
Number: V115-7; Published: 2007-03-30
References
- The FlexRay Communications System Specifications available through the FlexRay Consortium http://www.flexray.com
- Fuchs E. Galla T. M. Lang R. Nossal R. Sprachmann M. Etschberger K Hoffmann R. Bogenberger F. Both A. Rausch M. Temple C. Würz T. Grundstein E. Würslin R. Lobmeyer M. Tools and Simulation for FlexRay September 27th-28th 2001 10th International Congress “Electronic Systems for Vehicles” Baden-Baden, Germany
- Roman Nossal Galla Thomas M. Jochen Olig Standard Software Modules - One Key for Future Distributed Systems April 11th-14th 2005 SAE 2005 World Congress Detroit, MI, USA
- AUTOSAR http://www.autosar.org