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

Author

Buja, Giuseppe ; Pimentel, Juan R. ; Zuccollo, Alberto

Author_Institution

Univ. of Padova, Padova

Volume

3

Issue

3

fYear

2007

Firstpage

225

Lastpage

233

Abstract

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.

Keywords

controller area networks; distributed control; fault diagnosis; fault tolerance; field buses; protocols; safety systems; telecommunication traffic; CAN network; CAN protocol; FlexCAN architecture; babbling-idiot failure; bus guardian solution; fault tolerance; safety-critical system; unscheduled traffic; Bismuth; Distributed control; Fault tolerance; Fault tolerant systems; Job shop scheduling; Protection; Protocols; Real time systems; Telecommunication traffic; Testing; Babbling-idiot faults; CAN networks; FlexCAN architecture; bus guardian;

fLanguage

English

Journal_Title

Industrial Informatics, IEEE Transactions on

Publisher

ieee

ISSN

1551-3203

Type

jour

DOI

10.1109/TII.2007.904144

Filename

4285617