纯电动商用汽车CAN网络通信协议设计

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【摘  要】文章基于SAE J1939设计纯电动商用汽车整车CAN通信协议。根据纯电动商用车控制器的特点，设计CAN网络拓扑。根据控制器之间的交互信息定义CANID，计算负载率并实车测试负载率及通信品质，对新能源商用车整车CAN网络设计具有很实用的参考意义。

【关键词】纯电动商用车;CAN;通信协议

中图分类号：U469.72    文献标识码：A    文章编号：1003-8639（ 2024 ）12-0015-03

Design of CAN Network Communication Protocol for Pure Electric Commercial Vehicles

【Abstract】This paper based on SAE J1939，CAN communication protocol of pure electric commercial vehicle is designed. According to the controller characteristics of pure electric commercial vehicles，the CAN network topology is designed，CANID is defined according to the interactive information between controllers，load ratio is calculated，and load ratio and communication quality are tested in real vehicles，which has practical reference significance for CAN network design of new energy commercial vehicles.

【Key words】pure electric commercial vehicle;CAN;communication protocol

0  引言

随着社会经济和科学技术的发展，汽车行业对商用车舒适性和安全性的要求也在不断提高，越来越多的驾驶辅助功能和智能化功能应用到商用车，所有功能的增加都会带来各控制器之间的信号交互。（剩余4884字）