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Advanced Bus Failure Management for the Physical Layer of CAN
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English
Abstract
A new bus failure management (BFM) for the Controller Area Network (CAN) is presented. In addition to the existing fault confinement of CAN, the task of a BFM is to resolve or get around faults on the physical layer. This paper discusses existing BFM proposals and outlines the superior characteristics of the new BFM. Systems using this technique overcome any single bus fault and maintain their communication capability by means of fast recovery actions. Low-cost implementations of this concept are possible in hardware. A performance comparison between this and existing BFM concepts is given. The paper concludes with evaluation results revealing the excellent performance of a CAN system using the proposed BFM concept in a monolithic transceiver.
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Citation
Mores, R., "Advanced Bus Failure Management for the Physical Layer of CAN," SAE Technical Paper 960119, 1996, https://doi.org/10.4271/960119.Also In
References
- ISO 11519-2 “Road Vehicles - Low-Speed Serial Data Communication - Part 2: Low-Speed Controller Area Network (CAN)” International Organization for Standardization Genéve, Switzerland 1994
- ISO 11898 Road Vehicles - Interchange of Digital Information - Controller Area Network (CAN) for High-Speed Communication International Organization for Standardization Genéve, Switzerland 1993
- Mores, R. Kuntz W. Morse M. J. “CAN Operated on an Optical Double Ring at Improved Fault-Tolerance” European Transactions on Telecommunications 4 4 465 470 Italy July 1993
- Mores, R. “Fibre-Optic, Multi-Access Network for Intracar and Manufacturing Environments” De Montfort University Leicester, UK March 1994
- Pehrs, J.-U. “CAN Bus Failure Management Using the P8xC592 Microcontroller” Application Note HKI/AN 91020 Philips Product Concept & Application Laboratory Hamburg, Germany October 1991
- Peter, C. “Physical Layer for Multiplexed Networks” SAE 900694 SAE International Congress and Exhibition Detroit 1990
- Philips Semiconductors “PCA82C252 Tentative Device Specification” Nijmegen, The Netherlands 1995