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System Design Approach For Service Oriented Communication Using Autosar Methodology

Automotive radars and cameras form the backbone of self‐driving cars, Active safety and Advanced Driver Assistant Systems (ADASs). Streaming sensor, camera and audio data between sensors and Electronic control units (ECUs) requires huge data exchange. Traditionally data communication happens in a signal‐oriented approach where the sender transmits data irrespective of receiver's consumption needs on the network. With introduction of Scalable Service‐Oriented MiddlewarE over Internet Protocol ‐Service Discovery (SOME/IP‐SD), which is a Service oriented communication, the sender transmits the data only when the receiver on network needs the data. The advantage is that the network and connected nodes are not loaded by unnecessary data. This paper describes the system level design approach for the serialization of large data (>1500 bytes) over SOME/IP‐Service Discovery protocol using Autosar methodology in automotive Ethernet in‐vehicle networks. The system design is done using PREEVision tool and the bench evaluation is performed using Freescale hardware and Vector Autosar Basic Software stack. The outcome of this paper is to measure the end to end subscription latency between Client and Server ECUs.