基于I2C总线的电池管理系统通信方法  

A communication method for battery management system base on I2C bus

作　　者：王壮鹏 肖兵[1] 刘落实 欧奔 WANG Zhuangpeng;XIAO Bing;LIU Luoshi;OU Ben(College of Automation Science and Engineering,South China University of Technology,Guangzhou 510641,China;Guangzhou Triv Electronic Technologies Co.LTD,Guangzhou 510006,China)

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510641 [2]广州智维电子科技有限公司,广东广州510006

出　　处：《应用科技》2020年第2期48-52,共5页Applied Science and Technology

基　　金：国家自然科学基金项目(61563010).

摘　　要：电池管理系统作为新能源汽车的一项关键技术在能量管理方面有着十分重要的作用。为了解决电池管理系统中主控制器与芯片的通信问题,本文提出了一种使用三极管等半导体元件设计出的电平迁移电路模块,并用双线级联的电平迁移电路,实现各个芯片端口的信息交互。该模块无需采用隔离电路,就能实现不同电压芯片间的多主通信,实验结果表明,电路工作正常,实现了预期效果。The battery management system(BMS),as a key technology for new energy vehicles,plays an important role in energy management.To solve the communication problem between the main controller and the chip in the BMS,we propose a level shifting circuit module designed with semiconductor components,such as triodes,and use the I2C bus to connect the circuit modules to realize the information interaction of each chip port.These modules realize the communication between different voltage chips without isolation circuits.The experimental results show that the circuit design works well and the expected effect is achieved.

关 键 词：电池管理系统 电平迁移 隔离电路 I2C总线 双线串行接口 多主机工作模式 双线多主通信 通信数据包 

分 类 号：TN914[电子电信—通信与信息系统]