Worst-Case Response Time Analysis for OSEK/VDX Compliant Real-Time Distributed Control Systems

Authors:
Wang Lei;Zhaohui Wu;Mingde Zhao
Affiliations:
Zhejiang University;Zhejiang University;Zhejiang University
Venue:
COMPSAC '04 Proceedings of the 28th Annual International Computer Software and Applications Conference - Volume 01
Year:
2004

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Abstract

Temporal behaviors prediction is very critical for real-time control systems. This paper presents a method to analysis the worst-case response time of OSEK/VDX compliant hard real-time distributed control systems. OSEK/VDX is an industry standard for an open-ended architecture for distributed control units in vehicles. Traditional time analysis methods based on the fixed priority preemptive scheduling model do not account for the problems occur in practical systems. Based on the current time analysis technologies, we propose an accurate time analysis method considering the practical effects of resource access synchronization, mixed preemptive and non-preemptive scheduling, as well as the overheads of OSEK OS. Furthermore, we also propose a scheme to efficiently integrate time analysis tools into the current development process for electronic control units in vehicles.