고정밀 조향각 센서의 AUTOSAR기반 FlexRay 통신 적용에 관한 연구

AUTOSAR Communication Stack has three different communication stacks (CAN, LIN, FlexRay) for In-Vehicle Network. FlexRay communication stack is divided into three layers, which are Communication Service Layer, Communication Hardware Abstraction Layer and Communication Driver Layer. The modules of Communication Service Layer act as an interface between AUTOSAR SW-C and Communication Hardware Abstraction Layer. They provide flow control and network management mechanisms that make it possible for FlexRay protocol to configure a FlexRay cluster and support several functionalities for retransmission, fragmentation, error control and so on. Communication Hardware Abstraction Layer and Communication Driver Layer play a role in FlexRay media access and frame encoding/decoding. In this study, we explain FlexRay communication stack based on AUTOSAR v3.1 and propose SAS(Steering Angler Sensor) system comprising 4 Flexray nodes