动力电池管理系统设计  

Design of Power Battery Management System

作　　者：何志杰 褚若波 HE Zhijie;CHU Ruobo(Fujian Normal University,Fuzhou,Fujian,350117,China)

机构地区：[1]福建师范大学物理与能源学院,福建福州350117

出　　处：《福建师大福清分校学报》2018年第5期31-37,共7页Journal of Fuqing Branch of Fujian Normal University

基　　金：福建省教育厅JK类项目(JK2016008)

摘　　要：以双层次结构设计电池管理系统BMS,其中包括电池管理单元BMU和电池控制单元BCU.电池管理单元BMU可以任意扩展,通过CAN总线与BCU单元进行通信.电池控制单元BCU模块,重点分析了CAN通信及总电压、总电流采集电路;电池管理单元BMU模块,重点分析了均衡电路、温度采集、隔离电路.最后,简要分析了BMU的软件工作流程,同时对电池管理BMS系统的均衡功能模块,电压采集精度进行测试分析,测试结果表明,电压采样精度、均衡功能都满足系统设计要求.In this paper, we designed a battery management system BMS with a dual layer structure, which includes the battery management unit BMU and the battery control unit BCU. Battery management unit BMU can be arbitrarily extended, communicating with BCU through the CAN bus. Aiming at BCU module, we focused on the analysis of the CAN communication,the total voltage and current acquisition circuit; targeting at BMU module, we conducted the analysis of the balance circuit, temperature acquisition and isolation circuit. Finally,a brief analysis of the BMU workflow was conducted. The balancing function and voltage acquisition accuracy of BMS were tested and analyzed. The test results show that the voltage acquisition accuracy and balancing function meets the system design requirements.

关 键 词：电池管理系统 均衡控制 BQ76PL536A CAN总线 

分 类 号：U469.72[机械工程—车辆工程]