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Evaluation of response time distributions for controller area network messages
Date
2018-07-09
Author
Batur, Ahmet
Schmidt, Şenan Ece
Schmidt, Klaus Verner
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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
Subject Keywords
Weak synchronization
,
Response time distribution
,
CAN
URI
https://hdl.handle.net/11511/37658
DOI
https://doi.org/10.1109/siu.2018.8404543
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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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...
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Clock synchronization and weak TDMA for CAN FD: Implementation and evaluation
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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...
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A. Batur, Ş. E. Schmidt, and K. V. Schmidt, “Evaluation of response time distributions for controller area network messages,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37658.