车载以太网在汽车电子电气架构设计中应用研究

Posted 2021-04-11 汽车电子电气架构创新发展论坛

随着汽车智能化、网联化和电动化的快速发展,电子电气架构必须升级才能支撑相关配置功能。当前,CAN总线仍然在电气架构中普遍应用,主要是因为技术成熟、稳定。然而,CAN总线技术的数据传输速度低,以至于不能支撑汽车“三化”快速发展需要的快速数据传输的功能。除了数据传输外,在自动驾驶与车载娱乐功能域中,音频和视频数据传输量也同样增长迅速。基于数据传输技术的发展和配置功能发展需求,车载以太网技术具有支持所有应用场景的能力。虽然车载以太网总线技术已经出现多年,但是在电子电气架构设计中合理的集成车载以太网是汽车网联化和智能化发展的核心技术之一。介绍一种策略,指导整车厂在电气架构高效正确的应用车载以太网技术,以实现和支撑汽车“三化”发展需要的先进配置功能。

With the rapid development of automotive intellectualization,connectivity and electrification,the electronic and electrical architecture must be upgraded to support the relevant configuration functions.At present,CAN bus is still widely used in electrical architecture,mainly because of mature and stable technology.However,the data transmission speed of CAN bus technology is so low that it can not support the fast data transmission function required by the rapid development of"three modernizations"of automobiles.In addition to data transmission,the volume of audio and video data transmission is also growing rapidly in the field of automatic driving and vehicle entertainment.Based on the development of data transmission technology and the requirement of configuration function,vehicular Ethernet technology has the ability to support all application scenarios.Although the vehicular Ethernet bus technology has appeared for many years,the reasonable integrated vehicular Ethernet in the design of electronic and electrical architecture is one of the core technologies for the development of vehicular network interconnection and intellectualization.This paper introduces a strategy to guide the automobile factory to apply the on-board Ethernet technology efficiently and correctly in the electrical structure,so as to realize and support the advanced configuration functions required by the development of"three modernizations"of automobiles.

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