常用汽车总线及车载以太网技术应用与分析

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Application and Analysis of Common Automotive Bus and Vehicle Ethernet Technology

Bao Jiqiang，Li Qiang，Feng Yutang （Guangdong Rifeng Electric Cable Co.，Ltd.， Zhongshan ，China）

【Abstract】 With the rapid development of automotive inteligence and electrification，vehicle bus technology has become thecore basis to support the eficient operation of automotive electronic systems.This paper systematically studies the technical characteristics，application scenariosand development trends of CAN，LIN，FlexRay，MOST，LVDS and six main types of automotive Ethernet bus.Through comparative analysis of key parameters such as bandwidth，topology， costandreliability，thecomplementarityandlimitationsofdiferentbus technologies inautomotiveelectronic systemsare revealed.Theresearch resultsshow that the futurevehicle network will show the trend of multi-protocol integration， Ethernetdominance，securityandreal-time enhancement.This paper provides theoretical basisand practical reference for the optimization of automotive electronic architecture and the selection of new bus technology.

【Key words】 automobile bus；bandwidth； topological structure；parameters；apply

0 引言

现代汽车电子控制系统复杂度显著提升，单车电子控制单元（ ）数量已超过 个[&＼，传统点对点布线方式导致线束质量达 50kg 以上，且难以满足实时通信需求。（剩余2383字）