In order to analyze the schedulability of realtime transmission of multi-messages on Controller Area Network (CAN), an amended scheduling algorithm is put forward. This algorithm is based on Rate-Monotonic (RM) scheduling Algorithm, which is widely used on scheduling real-time multitasks on uniprocessor. CAN is treated as exclusive critical sections. The utilization of CAN is defined as a key factor of schedulability. A realistic workload of CAN in pure electric vehicle is present, and the schedulability of this system is calculated. The result is coincident to the actual work. The RM-scheduling upper limits of variant velocity messages are counted, which can be used as the guideline to evaluate the communication ability of CAN.
Analysis of schedulability of CAN based on RM algorithm
2007-12-01
248974 byte
Conference paper
Electronic Resource
English
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