This research presents the design of a model that simulates CAN FD protocol performance in a seven-node network and data transmission bus. This model is designed using MATLAB and SimEvents library, which provides a simulation environment for intermittent events that enables modeling and simulation any system based on time events. This model included simulation of CAN FD transmission algorithm so that data frames were fully integrated and generated on time for some nodes and depending on a given event (whatever) for each other. The results of this model and the model were compared in the same manner and with the same simulation conditions for the CAN 2.0 protocol. After plotting the relationship between the priority node and delay time, we conclude that CAN FD protocol shows a real impact on transport speed (BitRate) and a slight impact on priority node delay and arbitration compared to CAN 2.0 that is highly susceptible to node priority. For the relationship between utilization and BitRate, the charts show that CAN FD protocol provides faster transmission of messages with lower bus usage. Thus, after comparing the total results of CAN FD and CAN 2.0 we conclude that CAN FD protocol transmits messages with a worst case delay 4 times faster than CAN 2.0 and reduces utilization by more than 2 times, noting that all comparisons are made in the same simulation conditions.
Al-Baath University Journal.
2019.
Study and Build a CAN FD Network Model and Compare its Performance with CAN 2.0
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