混合动力电动汽车电池管理系统.pdf

北方工业人学硕士学位论文摘要随着能源和环保问题的日益突出,混合动力电动汽车(HEV)以其排放低,噪声低,等优点而受到世界各国的高度重视,作为发展电动车的关键技术之一的电池能量管理系统(BMS),是电动车商品化,实用化的关键。本文致力于混合动力电动汽车蓄电池能量管理系统的研究,深入讨论了系统的设计思想与实现方法,提出了镍氢电池剩余容量的估计方法。分析了镍氢蓄电池的基本工作原理和充放电特性以及影响蓄SOC(state of charge)剩余容量的主要因素,考虑到混合动力电动汽车对动力电池的要求,从多个方面对目前各种动力蓄电池的性能指标及优缺点进行了比较,由比较结果可看出, 镍氢蓄电池是较为理想的电动汽车动力源。研究了镍氢蓄电池SOC的几种预测方法,比较了它们的优缺点,由于镍氢蓄电池的容量与电池的端电压、充放电电流、电池的温度和电池的寿命等多种因素有关,所以很难用传统单一的方法估计镍氢蓄电池的剩余容量,本文提出了基于经验模型的SOC测量方法。介绍了基于CAN总线的蓄电池组控制器的硬件平台,采用 TMS320LF2407作为微控制器,完成数据采样、CAN模块通讯、信号调理电路及相关隔离电路的开发设计。实现了对电池电压、温度和电流参数的采集,完成了系统的软件设计。本文所介绍的电池管理系统硬件电路可靠,经济,经实践检验SOC(state of charge)剩余容量的估计比较准确。关键词:混合动力电动车,电池管理系统,电池剩余容量,TMS320LF2407 北方上业人学硕士学位论文 Research ofBattery Management System ofHybrid Electric Vehicle Abstract Withincreasing oftheproblem ofenvironment and energy sources,Because of the advantage of low emission and low noise,Hybrid electricvehicles(HEV)gets extensive attention In recent years inmang countries. The batterymanagement system play allimportant rolein thedevelement ofelectric vehicles isthe key technology which strengthen mercial and practical of paper applay itself totheresearch oftheBattery management system(BMS)of Hybrid electric vehicles and deeply introduce thet】10ughts aboutthesystem design andit’srelized—method,at thesame time,this paper Putforward thedifferent kindsofstate-of-charge(SOC)measuring methods. Having analyzed the electronicmechanism oftheMH/I batteriesduring chargeand pared theadvantages ofMH伽batteries、vitll other kinds ofbatteries,the resultisMH/NI batteries isthepromising power battery forHEV due toitsadvantages such ashighpower leverandlong life. Principle of the reaction oftheMH/NI battery,the characteristics and existed problems ofdifferentkinds ofstate-of-charge(SOC)measuring methods pared. -charge(SOC)of MH/NI battery isinfluenced by many factors,such aStemperature,cycle ofdischarge andagingofbattery,it isdifficult toobtain idealresultsby traditional put f