混合动力汽车模糊能量管理策略研究
混合动力汽车模糊能量管理策略研究(论文13400字)
摘 要
随着时代的发展,汽车对于人们的日常出行变得越来越重要。但是汽车在给人们带来便利的同时,也出现了能源消耗高、环境污染严重等问题。大气臭氧层空洞、酸雨以及最近几年出现较多的雾霾均与汽车尾气的排放有很大关系,在这种大环境下,混合动力电动汽车也就随之出现。而想要使混合动力汽车高效的工作,一种好的能量管理策略必不可少,对能量管理策略的研究能够使总能量在电机和发动机之间有一个合理分配。
本文以并联式混合动力电动汽车的能量管理系统为研究对象,建立混合动力电动汽车的电池模型、发动机模型、电机模型和汽车动力学模型,最后搭建出整车的模型。
然后设计出一种基于模糊控制理论算法,以电池荷电状态(Stage Of Charge,简称SOC)、汽车总需求转矩(Treq)为输入,汽车发动机实际需求转矩为输出(Tice)的模糊逻辑能量管理策略。制定合理的模糊控制策略,选择适当合理的隶属度函数和根据相关专家经验制定适当的模糊规则。
最后,利用MATLAB/SIMULINK和Advisor对系统进行建模及仿真。将仿真结果与电辅助控制策略进行比较,可以看出模糊控制策略能够有效的改善整车效率、主要尾气的排放可以明显降低、电机效率提高、百公里油耗降低。 [资料来源:http://doc163.com]
关键词:能量管理策略,混合动力电动汽车,模糊理论
ABSTRACT
With the development of the times, the car is increasingly important for people's daily travel becomes. But the car to bring convenience, but also the emergence of high energy consumption and serious environmental pollution and other issues. Atmospheric ozone hole, acid rain emerged in recent years more and haze have a great relationship with the vehicle exhaust emissions, in this environment, hybrid electric vehicles also appears. Hybrid vehicle power source provided by the motor and the engine. And you want to make hybrid vehicles and efficient work, a good energy management strategy is essential. Research on energy management strategy enables the total energy between the motor and the engine has a reasonable allocation.
In this paper, parallel hybrid electric vehicle energy management system for the study, the establishment of a hybrid electric vehicle battery model, the engine model, motor model and vehicle dynamics model, and finally build a vehicle model. [资料来源:Doc163.com]
Then design an algorithm based on fuzzy control theory, the battery state of charge (Stage Of Charge, abbreviated SOC), total vehicle demand torque (Treq) as an input, the actual needs of automotive engine torque output (Tice) Fuzzy Logic energy management strategy. Fuzzy control strategy to develop a reasonable, appropriate and reasonable choice of membership functions and fuzzy rules based on the development of appropriate relevant expertise.
Finally, the use of MATLAB / SIMULINK and Advisor system modeling and simulation. The simulation results with electric auxiliary control strategies were compared, we can see that the fuzzy control strategy can effectively improve the efficiency of the vehicle, the main exhaust emissions can be significantly reduced, motor efficiency, reduce hundred kilometers.
Keywords: energy management strategy, hybrid electric vehicles, fuzzy theory
[资料来源:http://www.doc163.com]
目录
第1章 绪论 1
1.1 研究的目的和意义 1
1.2 国内外发展现状 2
1.2.1国外研究现状 2
1.2.2国内研究现状 2
1.3 关键技术的研究现状 2
1.4本文主要研究内容及章节安排 3
第2章PHEV的模型建立 4
2.1电机模型的建立 4
2.2发动机模型的建立 5
2.3电池模型的建立 5
2.4汽车动力学模型的建立 7
2.5建模方法 7
2.6整车模型的建立 8
2.7本章小结 8
第3章PHEV的能量管理策略 9
3.1电辅助式控制策略 9
[资料来源:Doc163.com]
3.2模糊控制理论以及发展现状 10
3.3模糊控制器设计 10
3.3.1模糊控制输入输出量化 11
3.3.2模糊化 12
3.3.3模糊规则的制定 12
3.3.4隶属函数的确定 13
3.3.5反模糊化 14
3.4本章小结 15
第4章PHEV的仿真 16
4.1能量管理系统仿真 16
4.1.1建立系统仿真模型 16
4.1.2 PHEV的仿真结果 19
4.2本章小结 23
第5章 结论与展望 24
5.1全文总结 24
5.2研究展望 24
参考文献 25
致谢 26 [资料来源:http://Doc163.com]