轮毂电机驱动电动汽车再生制动控制策略研究与仿真

发布时间：2018-01-26 20:43

本文关键词： 电动汽车轮毂电机再生制动控制策略　出处：《重庆交通大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着社会经济的快速发展,人类面临日益严重的能源短缺和环境污染问题,为响应国家提出的可持续发展理念的倡导,绿色、环保的电动汽车逐渐受到人们的青睐。作为电动汽车特有的功能和关键技术,再生制动在提高整车能量利用率、增加续驶里程等方面具有重要的作用,因此,再生制动技术的研究对电动汽车的发展意义重大。本文首先以四轮轮毂电机驱动电动汽车为研究对象,简述了再生制动技术的国内外研究现状,并对再生制动控制策略进行了分析。通过对制动力分配理论、再生制动影响因素、ECE制动法规、电机特性和电池状态等综合分析的基础上,在保证制动稳定性和安全性的前提下,并尽可能回收制动能量,制定了一种基于ECE法规最优能量回收的轮毂电机驱动电动汽车再生制动控制策略。为实现轮毂电机再生制动系统的离线仿真,在对电动汽车制动能量回收系统分析的基础上,以理论建模的方法,在Matlab/Simulink环境下,对Advisor软件进行二次开发,建立了本文研究的四轮轮毂电机驱动电动汽车再生制动系统的仿真模型,主要包括:整车动力学模型、车轮/半轴模型、电机/控制器模型、牵引力控制模型和制动力分配模型等,并将其嵌入到Advisor软件中;然后,选择在ECE、UDDS和NEDC三种典型城市驾驶循环工况下进行了仿真分析,结果表明,在保证制动稳定性和安全性的前提下,本文设计制定的针对四轮轮毂电机驱动电动汽车的制动力分配控制策略的可行性与有效性,为轮毂电机再生制动系统的进一步深入研究提供了一定的理论支持。
[Abstract]:With the rapid development of social economy, mankind is facing increasingly serious problems of energy shortage and environmental pollution. In response to the concept of sustainable development advocated by the country, green. As a special function and key technology of electric vehicles, regenerative braking plays an important role in improving the energy utilization ratio of the whole vehicle and increasing the driving mileage. The research of regenerative braking technology is of great significance to the development of electric vehicle. Firstly, this paper takes the electric vehicle driven by four-wheel hub motor as the research object, briefly introduces the domestic and foreign research status of regenerative braking technology. Based on the analysis of braking force distribution theory, the influence factors of regenerative braking, such as ECE braking regulations, motor characteristics and battery status, etc. Under the premise of ensuring the stability and safety of the brake, the braking energy is recovered as much as possible. In order to realize off-line simulation of regenerative braking system of hub motor, a regenerative braking control strategy for electric vehicle driven by hub motor based on optimal energy recovery of ECE regulation is established. Based on the analysis of braking energy recovery system of electric vehicle, the second development of Advisor software is carried out under the environment of Matlab/Simulink with the method of theoretical modeling. The simulation model of regenerative braking system for electric vehicle driven by four-wheel hub motor is established in this paper, which mainly includes: vehicle dynamics model, wheel / half axle model, motor / controller model. Traction control model and braking force distribution model are embedded in Advisor software. Then, three typical urban driving cycle conditions, ECE-UDDS and NEDC, are selected for simulation analysis. The results show that the braking stability and safety are guaranteed. The feasibility and effectiveness of the braking force distribution control strategy designed in this paper for the four-wheel hub motor driven electric vehicle provides a certain theoretical support for the further research of the regenerative braking system of the hub motor.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U469.72

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