Title :
System-level analysis of fault effects in an automotive environment
Author :
Corno, F. ; Tosato, S. ; Gabrielli, P.
Author_Institution :
Dipt. di Automatica e Informatica, Politecnico di Torino, Italy
Abstract :
In recent years, new requirements in terms of vehicle performance has increased significantly the amount of on-board electronics, thus raising more concern about safety and fault tolerance induced by the electronic system in automotive products. The adoption of several on board active systems and their interactions forced designers to substitute point to point connections with networking systems, mainly based on the controller area network (CAN) protocol. This paper presents some recent results to improve the evaluation of reliability due to network connections. Evaluation is based on first modeling the network at the functional level and then integrating it into a complete vehicle model describing both electronic and mechanical behavior; in this way, it is possible to build an automated fault injection environment to forecast the effects of faults at the network level on the vehicle dynamics. We evaluated this approach on the vehicle dynamic control subsystem, and analyzed the effects on vehicle performance in the presence of several network faults.
Keywords :
automotive electronics; circuit reliability; circuit simulation; controller area networks; failure analysis; fault simulation; fault tolerance; safety systems; vehicle dynamics; CAN protocol; active on-board systems; automated fault injection; automotive environment; controller area network; fault tolerance; network reliability; safety; system-level fault effects analysis; vehicle dynamic control subsystem; vehicle electro-mechanical behaviour modeling; vehicle electronics; Automotive engineering; Control systems; Fault tolerant systems; Force control; Predictive models; Product safety; Protocols; Vehicle dynamics; Vehicle safety; Vehicles;
Conference_Titel :
Defect and Fault Tolerance in VLSI Systems, 2003. Proceedings. 18th IEEE International Symposium on
Print_ISBN :
0-7695-2042-1
DOI :
10.1109/DFTVS.2003.1250152