Overcoming Babbling-Idiot Failures in CAN Networks: A Simple and Effective Bus Guardian Solution for the FlexCAN Architecture

This paper is concerned with the issue of protecting CAN networks against the consequences of babbling-idiot faults such as unscheduled traffic generated by a faulty node that denies any other communication. A full solution of the problem would greatly enhance the dependability of the CAN networks,...

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Bibliographic Details
Published in:IEEE transactions on industrial informatics 2007-08, Vol.3 (3), p.225-233
Main Authors: Buja, G., Pimentel, J.R., Zuccollo, A.
Format: Article
Language:English
Subjects:
Architecture
Babbling-idiot faults
Bismuth
bus guardian
Buses (vehicles)
CAN networks
Distributed control
Failure
Fault tolerance
Fault tolerant systems
Faults
FlexCAN architecture
Job shop scheduling
Networks
Protection
Protocols
Real time systems
Telecommunication traffic
Testing
Traffic engineering
Traffic flow
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Summary:This paper is concerned with the issue of protecting CAN networks against the consequences of babbling-idiot faults such as unscheduled traffic generated by a faulty node that denies any other communication. A full solution of the problem would greatly enhance the dependability of the CAN networks, making them applicable to safety-critical systems. After explaining the weakness of the native CAN protocol in tolerating the babbling-idiot faults, this paper shows how the FlexCAN architecture is suitable to tolerate them effectively. To this aim, a simple bus guardian is proposed and tested. The results of the test are given in this paper.
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2007.904144