毕业论文丰田普锐斯混合动力汽车电源系统研究完稿.docx

宁 波 技 师 学 院 汽车技术系毕业论文 毕 业 论 文 (2016级) 题目:丰田普锐斯混合动力汽车电源系统研究 专　　业: 汽车运用工程 班　　级: 姓 名: 学 号: 指导老师: 宁波技师学院汽车技术系 2016年1月8 日 摘 要 为了应对能源危机,减缓全球气候变暖,许多国家都开始重视节能减排和发展低碳经济。电动汽车因为采用电力进行驱动,可以降低二氧化碳的排放量甚至实现零排 放,所以得到各国的重视而迅速发展。磷酸铁锂电池因其寿命长、安全性能好、成本低等优点成为电动汽车的理想动力源。 本文研究了磷酸铁锂电池的工作原理和特性,针对这些特性分析了磷酸铁锂电池在电动汽车上使用时需要解决的一些问题。在此基础上,研究了磷酸铁锂电池的 SOC估算与修正策略、均衡控制策略、热管理策略、放电控制策略和充电控制策略。最后,将磷酸铁锂电池和电池管理系统结合在一起,研究了智能电池系统的实 现形式。硬件上设计了较为完善的结构和电路,软件上嵌入了针对磷酸铁锂电池的控制策略。智能电池系统内部对电池进行高效测量、管理和保护,对外提供完整的 电池信息,对充放电进行有效控制。 关键词： HYPERLINK /s?wd=%E7%94%B5%E5%8A%A8%E6%B1%BD%E8%BD%A6tn=SE_baiduxueshu_c1gjeupaie=utf-8 \t _blank 电动汽车; HYPERLINK /s?wd=%E6%99%BA%E8%83%BD%E7%94%B5%E6%B1%A0%E7%B3%BB%E7%BB%9Ftn=SE_baiduxueshu_c1gjeupaie=utf-8 \t _blank 智能电池系统;蓄电池 Abstract In order to cope with the energy crisis and slow down the global warming, many countries have begun to attach importance to energy-saving emission reduction and develop low-carbon economy. Because the electric vehicle is driven by electric power, it can reduce the emission of carbon dioxide and even achieve zero discharge, so it has been paid more attention and developed rapidly in the world. Because of its long life, good safety performance and low cost, the lithium iron phosphate battery is an ideal power source for electric vehicles. In this paper, the working principle and characteristics of the lithium iron phosphate battery are studied. Some problems that need to be solved for the use of lithium iron phosphate battery in electric vehicle are analyzed. On the basis of this study, the SOC estimation and correction strategy, the balance control strategy, the thermal management strategy, the discharge control strategy and the charge control strategy of the lithium iron phosphate battery were studied. Finally, the system of lithium iron phosphate lithium bat