Abstract: Using Ethernet technology and architecture as the direction of the next-generation in-vehicle networks receives widespread concern by the automotive industry and communications technicians. The demand for transmission bandwidth of ADAS and entertainment system promotes the process of Ethernet network involved in automotive network. This paper analyzes the problems when in-vehicle network faces high bandwidth requirements, describes the evolution of Ethernet in-vehicle networks, and discusses the Ethernet technology for the automotive industry.

Key words: in-vehicle ethernet, Ethernet Audio/Video Bridging（AVB）, Time Triggered Ethernet（TTEthernet）, in-vehicle network

摘要： 使用以太网技术及架构作为下一代车载网络的发展方向受到了汽车行业内部及通讯业技术人员的广泛关注，娱乐系统和高级驾驶辅助系统（ADAS）对传输带宽的迫切需求推动了以太网介入汽车网络的进程，分析了现有车载网络对高带宽需求所面临的问题，阐述了以太网在车载网络的演进过程，讨论了用于汽车工业的以太网技术。

关键词: 车载以太网, 音视频桥接, 时间触发以太网, 车载网络