基于CAN总线的电动汽车抗电磁干扰系统设计  

Design of electric vehicle anti-interference systembased on CAN bus

作　　者：刘敏 黄敏思 何苏利 LIU Min;HUANG Minsi;HE Suli(South China Institute of Software Engineering,Guangzhou University,Guangzhou 510990,China;Guangzhou ZHIYUAN Electronics Co.,Ltd.,Guangzhou 510700,China)

机构地区：[1]广州大学华软软件学院,广州510990 [2]广州致远电子有限公司,广州510700

出　　处：《自动化与仪器仪表》2021年第6期51-54,58,共5页Automation & Instrumentation

基　　金：广东省教育厅重点平台及科研项目(青年创新人才项目(自然科学))(No.2019KQNCX221,2020KQNCX139)。

摘　　要：针对电动汽车CAN总线通信网络受到电流浪涌、传输线路之间地电位不一致等电磁干扰的问题,提出一种新型的CAN总线通信抗干扰系统。分析CAN总线电磁干扰机理,对CAN总线通信网络进行硬件和软件抗干扰设计;通过实验验证,该设计提高CAN总线通信的抗干扰性,延长CAN总线节点的使用寿命,对解决电动汽车遇到的电磁干扰问题有一定的价值。In view of the communication network of Can bus of the electric vehicle is easily interfered by factors such as current surge and the inconsistency of ground potentials between transmission lines.A new type of CAN bus communication system which has great anti-interfere capacity is put forward.According to the electromagnetic interference of CAN bus,the hardware anti-interference and software filter of CAN bus communication system is designed.The design which can improve the anti-interference ability of CAN bus communication and prolong the service life of CAN nodes is verified by experiments and play a major role in solving the problems of interference which is encountered by electric vehicles.

关 键 词：CAN总线 脉冲变压器 抗干扰 电路设计 软件程序设计 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]