Research and Application of Three Protocols Based on AUTOSAR

The AUTOSAR (Automotive Open System Architecture) standard includes a set of specifications that describe software architecture, application programming interfaces and methods, in which the layered software architecture enables the development of software components to be carried out independently. The article focuses on the communication in the AUTOSAR architecture, including three buses: the LIN, the J1939 and the FlexRay. Firstly, it introduces the characteristics of these three bus protocols, and then the application of the LIN, the implementation of the J1939 and the key points in the realization of the FlexRay are studied and analyzed in depth. Through its application and software implementation, these three types of bus structures are comprehensively analyzed, which makes the application and implementation of communication in the AUTOSAR architecture more accurate. Especially through the implementation part of this paper, the implementation of communication in this architecture is easier to grasp.