车载以太网物理层及信号测试

Vehicle Ethernet physical layer and signal testing

随着5G技术的发展和万物互联时代的到来,目前汽车上以CAN为基础的总线架构已经满足不了未来汽车的带宽需求,以太网技术作为下一代车载网络架构已经是一大趋势。本文以车载以太网为基础,阐述车载以太网物理层信息的传输与交互以其协议,讨论在ECU级别物理层信号传输的完整性的测试。

With the development of 5G technology and the arrival of the Internet of everything era,the current bus architecture based on CAN in automobiles cannot meet the bandwidth requirements of future automobiles,and Ethernet technology as the next-generation on-board network architecture has become a major trend.Based on vehicle-mounted Ethernet,this paper describes the transmission and interaction of physical layer information of vehicle-mounted Ethernet and its protocols,and discusses the integrity test of physical layer signal transmission at the ECU level.