An automated data structure migration concept — From CAN to Ethernet/IP in automotive embedded systems (CANoverIP)

In premium vehicles, the number of distributed comfort-, safety-, and infotainment-related functions is steadily increasing. For this reason, the requirements for the underlying communication architecture are also becoming stronger. In addition, the diversity of todays deployed communication technologies and the need for higher bandwidths complicate the design of future network architectures. Ethernet and IP, both standardized and widely used, could be one solution to homogenize communication architectures and to provide higher bandwidths. This paper focuses on a migration concept for replacing todays employed CAN-buses by Ethernet/IP-based networks. It highlights several concepts to minimize the protocol header overhead by using EA- and rule-based algorithms and presents migration results for currently deployed automotive CAN subnetworks.