Comparison of FieldBus Systems, CAN, TTCAN, FlexRay and LIN in Passenger Vehicles

Abstract — The Controller Area Network (CAN) architecture was developed for use in automobiles in the 1980’s. It corresponds to the physical and datalink layers of the OSI network protocol stack. Manufacturers currently leverage and build upon this architecture to enable on-vehicle sensors, actuators and other commercial electronics to interoperate: communicate between different components, exchange data, and resolve operational dependencies. This paper examines the inner details of CAN and its three competitive networks, namely, TTCAN, FlexRay and LIN