摘要随着经济的发展，电力电子设备的更新速度更是突飞猛进，然而传统的能源煤，石油，天然气的储量却在日渐减少，这样带来的能源问题就引起了广大用户的关注，作为生活中的重要组成部分，汽车越来越被称为了生活得必需品,能源的减少引发了汽车动力的改革，而以电能代替传统的汽油的汽车便走进了人们的视野中，它污染小，对周围的影响也小。电动汽车的主要特色就是它的电池工程，而对电池的管理系统也就成了试下研究的热点。电池管理系统作为电动汽车上不可缺少的一部分，在对电动车的电池管理，充放电控制，电池监控等方面有着很重要的作用。本课题拟以我国长安纯电动汽车的设计要求和主体设计规划为蓝本，设计一款以单片机作为主要控制器的电池管理系统，实现对电池的综合检测管理的设计主要包括电压检测、电流检测、充电检测、放点检测，并针对性的设计外围CAN总线接口电路，以方便上级控制系统和我们设计的电池管理系统有机结合。关键字：电动汽车，充电管理，锂电池ABSTRACTWiththedevelopmentofeconomy,theupdatingspeedofpowerelectronicequipmentisadvancingbyleapsandbounds.However,thetraditionalenergyofcoal,oil,naturalgasreservesbutindwindling,energyproblemhascausedattentionofthemajorityofusers,asanimportantpartoflife,moreandmorevehiclesisknowntolifenecessities,energyreductioncausedbythereformoftheelectricvehicle,andtheelectricalenergytakestheplaceofthetraditionalgasolinecarwentintopeople'sfieldofvision,itlittlepollution,influenceonthesurroundingissmall.Themainfeatureofelectriccarisitsbatteryengineering,andthebatterymanagementsystemhasbecomeahotspotforthestudy.Asanindispensablepartofelectricvehicle,batterymanagementsystemplaysanimportantroleinbatterymanagement,chargedischargecontrol,batterymonitoringandsoon..ThispaperintendstoChinaChanganpureelectricvehicledesignrequirementsandthemainplanninganddesignismodeled,designamicrocontrollerasthemaincontrollerofthebatterymanagementsystem,thedesignandimplementationoftheoveralldetectionofbatterymanagement.Mainlyincludesvoltagedetection,currentdetection,chargingtestanddetection,andaccordingtothedesignofperipheralinterfacecircuitofCANbustosuperiorcontrolsystemandthedesignofbatterymanagementsystem,theorganiccombinationofconvenience.Keywords：electricvehicles,chargemanagement,lithiumbattery目录1绪论.............................................................11.1选题背景及意义.............................................11.2纯电动汽车概况.............................................21.3论文研究内容的章节安排.....................................22整体研究方案.....................................................42.1系统设计方案...............................................42.2系统总体设计方案的确定.....................................43硬件电路设计.....................................................73.1单片机的选择...............................................73.2电池管理芯片介绍...........................................93.3电源模块的选择.............................................93.4采样电路设计设计..........................................113.4.1传感器的选择.........................................113.4.2电压采集电路的设计...................................113.4.3电流检测电路的设计...................................123.4.4温度检测电路的设计...................................133.4.5绝缘电阻检测电路的设计...............................143.4.6故障报警模块电路的设计...............................163.4.7CAN通信模块.........................................164软件系统设计........................................
