Offset assignment on controller area network: Improved algorithms and computational evaluation

Date

2017-07-26

Author

Batur, Ahmet
Schmidt, Klaus Verner
Schmidt, Şenan Ece

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The basic requirement for the design of the Controller Area Network (CAN) for in-vehicle communication is to guarantee that the worst-case response time (WCRT) of each message is smaller than their specified deadline. In addition, it is desired to achieve small WCRTs that leave sufficient slack to the message deadline.

URI

https://hdl.handle.net/11511/41579

DOI

https://doi.org/10.1109/sies.2017.7993381

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Department of Electrical and Electronics Engineering, Conference / Seminar

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Improved load distribution for controller area network Batur, Ahmet; Schmidt, Şenan Ece; Schmidt, Klaus Verner (2017-06-29) The main requirement for the design of the controller are network (CAN) is to guarantee that each message response time is smaller than their specified deadline. In practical in-vehicle applications, messages on CAN are released with offsets in order to avoid message bursts that lead to undesirably large response times. In this paper, new algorithms for the choice of suitable message offsets are developed and it is shown that these algorithms outperform existing algorithms.
Computation of Response Time Distributions for Messages on the Controller Area Network Batur, Ahmet; Schmidt, Şenan Ece; Schmidt, Klaus Verner (2018-08-23) The response time of messages is an important parameter for the design of in-vehicle networks based on the controller area network (CAN). The message transmission on CAN is affected by several non-deterministic factors such as stuff bits that are added to CAN frames depending on the message payload or changing phases among the asynchronous CAN nodes because of clock drifts. The resulting probabilistic nature of message response times on CAN is captured by the response time distribution (RTD) that quantifies...
Evaluation of response time distributions for controller area network messages Batur, Ahmet; Schmidt, Şenan Ece; Schmidt, Klaus Verner (2018-07-09) The response time distribution (RTD) for messages on the controller area network (CAN) represents the probability of experiencing each possible response time. The existing literature suggests to use the RTD for the design of real-time applications based on CAN. This paper shows that the RTD does not capture the response time behavior on CAN well due to gradual clock drifts among CAN nodes. Instead
Clock synchronization and weak TDMA for CAN FD: Implementation and evaluation Demirel, İsmet Onur; Schmidt, Şenan Ece; Schmidt, Klaus Verner; Department of Electrical and Electronics Engineering (2022-12-27) The Controller Area Network (CAN) is the most widespread in-vehicle communication protocol. Although CAN has been used for many decades, there are very recent software-based enhancements that enable accurate clock synchronization and time-slotted medium access on CAN, denoted as weak time division multiple access (WTDMA), for deterministic bus access. In addition, there are recent updates to the CAN hardware such as CAN with flexible data rate (CAN FD) in order to both increase the available bit rate and th...
Robust Priority Assignments for Extending Existing Controller Area Network Applications Schmidt, Klaus Verner (Institute of Electrical and Electronics Engineers (IEEE), 2014-02-01) The usage of the controller area network (CAN) as an in-vehicle communication bus requires finding feasible and robust priority orders such that each message transmitted on the bus meets its specified deadline and tolerates potential transmission errors. Although such priority orders can be determined by available algorithms whenever they exist, it is always assumed that a CAN priority order is computed from scratch. In practical applications, it is frequently necessary to extend an existing message set by ...

Citation Formats

A. Batur, K. V. Schmidt, and Ş. E. Schmidt, “Offset assignment on controller area network: Improved algorithms and computational evaluation,” 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41579.