Timing analysis of cyber-physical applications for hybrid communication protocols

Alejandro Masrur, Dip Goswami, Samarjit Chakraborty, Jian Jia Chen, Anuradha M. Annaswamy, Ansuman Banerjee

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

8 Citations (Scopus)


Many cyber-physical systems consist of a collection of control loops implemented on multiple electronic control units (ECUs) communicating via buses such as FlexRay. Such buses support hybrid communication protocols consisting of a mix of time- and event-triggered slots. The time-triggered slots may be perfectly synchronized to the ECUs and hence result in zero communication delay, while the event-triggered slots are arbitrated using a priority-based policy and hence messages mapped onto them can suffer non-negligible delays. In this paper, we study a switching scheme where control messages are dynamically scheduled between the time-triggered and the event-triggered slots. This allows more efficient use of time-triggered slots which are often scarce and therefore should be used sparingly. Our focus is to perform a schedulability analysis for this setup, i.e., in the event of an external disturbance, can a message be switched from an event-triggered to a time-triggered slot within a specified deadline? We show that this analysis can check whether desired control performance objectives may be satisfied, with a limited number of time-triggered slots being used.
Original languageEnglish
Title of host publicationDATE '12 Proceedings of the Conference on Design, Automation and Test in Europe
Place of PublicationNew York
PublisherAssociation for Computing Machinery, Inc
Number of pages6
ISBN (Electronic)978-3-9810801-8-6
Publication statusPublished - 2012
Externally publishedYes
Event15th Design, Automation and Test in Europe Conference and Exhibition, DATE 2012 - ICC, Dresden, Germany
Duration: 12 Mar 201216 Mar 2012
Conference number: 15


Conference15th Design, Automation and Test in Europe Conference and Exhibition, DATE 2012
Abbreviated titleDATE 2012
Internet address


Dive into the research topics of 'Timing analysis of cyber-physical applications for hybrid communication protocols'. Together they form a unique fingerprint.

Cite this