純電動(dòng)汽車電池管理系統(tǒng)的開發(fā)與設(shè)計(jì)
發(fā)布時(shí)間:2018-01-13 22:06
本文關(guān)鍵詞:純電動(dòng)汽車電池管理系統(tǒng)的開發(fā)與設(shè)計(jì) 出處:《東南大學(xué)》2016年碩士論文 論文類型:學(xué)位論文
更多相關(guān)文章: 電動(dòng)汽車 電池管理系統(tǒng) 鋰離子電池 STM32F103 μC-OS-Ⅲ實(shí)時(shí)操作系統(tǒng)
【摘要】:隨著經(jīng)濟(jì)和科技的迅猛發(fā)展,人類的物質(zhì)生活日益豐富,但環(huán)境污染和能源短缺等問題隨著而來,并且越發(fā)嚴(yán)重,甚至威脅到整個(gè)地球的生態(tài)安全。在汽車行業(yè)中,為了解決燃油汽車的天然缺陷,以特斯拉為代表的純電動(dòng)汽車應(yīng)運(yùn)而生,并以其結(jié)構(gòu)簡單、零排放、噪聲小、能源利用率高等優(yōu)點(diǎn),將迅速占領(lǐng)未來汽車市場發(fā)展的制高點(diǎn)。作為電動(dòng)汽車的核心部件一電池管理系統(tǒng),不僅可以實(shí)時(shí)采集、監(jiān)控和顯示電池單元的電壓、溫度、電流等參數(shù),并根據(jù)所采集到的參數(shù)估算出剩余電量SOC,而且可以對(duì)異常電池進(jìn)行報(bào)警保護(hù),并將故障信息上傳給整車控制器,從而提高車用電池組的安全性,一定程度上降低純電動(dòng)汽車的運(yùn)行成本。本課題主要對(duì)純電動(dòng)汽車電池管理系統(tǒng)進(jìn)行了研究,首先通過對(duì)車用鋰離子電池的分析,嘗試性地設(shè)計(jì)了該系統(tǒng)的整體架構(gòu),然后基于此架構(gòu)進(jìn)行了包括采集均衡模塊、主控模塊、顯示模塊等方面的硬件設(shè)計(jì)和基于μC/OS-Ⅲ實(shí)時(shí)操作系統(tǒng)的軟件設(shè)計(jì),最后對(duì)所設(shè)計(jì)的軟硬件進(jìn)行系統(tǒng)調(diào)試,驗(yàn)證其穩(wěn)定性和可靠性。具體所完成的工作包括以下幾個(gè)方面:(1) 電池管理系統(tǒng)總體設(shè)計(jì):對(duì)所選電池單體NCR18650PF型鋰離子電池進(jìn)行了單體電壓特性、溫度特性、放電容量與開路電壓關(guān)系特性等方面的研究,并根據(jù)其工作特性,分析了電池管理系統(tǒng)所需的功能,并確定了電池管理系統(tǒng)的基本架構(gòu)。(2) 電池管理系統(tǒng)硬件設(shè)計(jì):根據(jù)電池管理系統(tǒng)的總體方案,完成了各個(gè)模塊的劃分和設(shè)計(jì),包括采集均衡模塊,電流采集模塊和主控制模塊的硬件電路設(shè)計(jì)(電氣原理圖的設(shè)計(jì)、電子元器件的選型和印刷電路板的制作),LCD顯示模塊的UI設(shè)計(jì)以及充放電保護(hù)模塊的器件選型與電路設(shè)計(jì)。(3) 電池管理系統(tǒng)軟件設(shè)計(jì):在硬件設(shè)計(jì)的基礎(chǔ)上,完成了基于μC/OS-Ⅲ的電池管理系統(tǒng)軟件設(shè)計(jì),主要包括在主控芯片STM32F103VET6上進(jìn)行系統(tǒng)實(shí)時(shí)內(nèi)核的移植和相關(guān)應(yīng)用軟件的開發(fā),其中應(yīng)用軟件由初始化啟動(dòng)任務(wù),電池電壓、溫度采集任務(wù),電流采集任務(wù),充放電控制任務(wù),熱管理控制任務(wù),均衡控制任務(wù)等任務(wù)模塊構(gòu)成。(4)系統(tǒng)調(diào)試和結(jié)果分析:在完成軟硬件開發(fā)后,借助相應(yīng)的硬件設(shè)備(動(dòng)力鋰離子電池、萬用表等)驗(yàn)證了電池電壓采集的精度,溫度采集的可靠性和LCD顯示的及時(shí)性。
[Abstract]:With the rapid development of economy and science and technology, the material life of human is increasingly rich, but environmental pollution and energy shortage and other problems come along, and become more and more serious. In the automobile industry, in order to solve the natural defects of fuel vehicles, the pure electric vehicles, represented by Tesla, emerged as the times require, with its simple structure, zero emissions and low noise. As the core component of electric vehicle, battery management system can not only collect, monitor and display the voltage of battery unit in real time. Temperature, current and other parameters, and according to the collected parameters to estimate the residual power SOC, and abnormal battery can be alarm protection, and the fault information uploaded to the vehicle controller. In order to improve the safety of vehicle battery pack, to some extent reduce the running cost of pure electric vehicle. This paper mainly studies the battery management system of pure electric vehicle. First of all, through the analysis of the vehicle Li-ion battery, the overall architecture of the system is designed tentatively, and then the acquisition and equalization module and the main control module are included based on this architecture. The hardware design of display module and the software design based on 渭 C / OS- 鈪,
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