纯电动四驱汽车结构设计与性能分析

发布时间：2018-06-05 03:26

本文选题：纯电动四驱汽车 + 动力性能　；参考：《安徽农业大学》2016年硕士论文

【摘要】：改革开放以来,我国社会发展迅速,人民生活水平逐年提高。汽车作为生活中不可或缺的交通工具,在促进社会经济发展、物质繁荣和给人们带去便捷的同时,也带来越来越严重的环境污染和能源短缺的问题。纯电动汽车由于具有零排放、噪声小和出色的操作体验等特点,已获得越来越多的重视。近年来,世界各国政府出台相关政策以刺激纯电动汽车市场,各大车企也纷纷针对纯电动汽车投入大量资金进行研究开发。可见,纯电动汽车的热潮真的到来了。本文的研究目的是设计一辆纯电动四驱汽车,根据设计要求完成整车重要部件的匹配设计。然后在ADVISOR软件中建立各模块的仿真模型,并对ADVISOR进行二次开发,得出仿真结果。最后完成纯电动四驱汽车的试制,再通过整车道路测试获得性能参数,并与仿真结果进行对比,从而来评价纯电动汽车的动力性能。本文首先介绍了纯电动汽车的发展背景、特点以及国内外的研究情况,揭示了发展纯电动汽车的必然性。接着详细阐述了纯电动汽车的基本结构、工作原理和常用的驱动布置形式,并设计出纯电动四驱汽车的动力驱动布置结构,并给出了整车和部件的参数。完成整车重要部件的参数匹配,并画出整车的三维模型。建模仿真前需要车辆进行受力分析,车辆行驶方向除了受驱动力之外,还受到加速阻力、滚动阻力、坡道阻力和空气阻力,依据汽车的受力分析和动力传动系统的参数便可以得出车辆的最大爬坡度、最大加速度最高车速和三个动力性评价参数,然后在ADVISOR2002仿真软件中建立纯电动四驱汽车的车辆模型、车轮模型、电机模型、变速器、蓄电池模型和主减速器模型。由于ADVISOR2002只能适用于前轮驱动汽车的缺点,需对其进行二次开发,先对纯电动四驱汽车进行受力分析,并建立对应出适合四轮驱动的整车仿真模型。利用新建的模型和整车和部件参数,对整车进行动力性能仿真,并得出对应的仿真结果。最后一部分,首先是根据设计,在安徽农业大学机电工程园开始试制所设计的车辆。接着通过实车在道路上的测试,实际测的动力性能数据与计算机上仿真的数据进行对比,存在一点误差,但是并不影响仿真结果的正确性,同时也验证了经过二次开发的ADVISOR2002软件针四驱型纯电动汽车仿真平台的合理性。
[Abstract]:Since the reform and opening up, China's rapid social development, people's living standards have improved year by year. As an indispensable vehicle in life, automobile not only promotes social and economic development, material prosperity and convenience to people, but also brings more serious environmental pollution and energy shortage. Due to its zero emission, low noise and excellent operating experience, pure electric vehicle has been paid more and more attention. In recent years, governments all over the world have issued relevant policies to stimulate the pure electric vehicle market, and major car companies have also invested a lot of money in research and development of pure electric vehicles. Visible, pure electric car craze really arrived. The purpose of this paper is to design a pure electric four-drive vehicle and complete the matching design of the important parts of the vehicle according to the design requirements. Then, the simulation model of each module is established in ADVISOR software, and the simulation results are obtained by the secondary development of ADVISOR. Finally, the trial production of pure electric four-drive vehicle is completed, and then the performance parameters are obtained by road testing, and compared with the simulation results, so as to evaluate the dynamic performance of pure electric vehicle. This paper first introduces the development background, characteristics and research situation of pure electric vehicle at home and abroad, and reveals the inevitability of developing pure electric vehicle. Then the basic structure, working principle and common driving layout of pure electric vehicle are described in detail, and the power drive layout structure of pure electric four-drive vehicle is designed, and the parameters of the whole vehicle and parts are given. Complete the parameter matching of the important parts of the whole vehicle, and draw the three-dimensional model of the whole vehicle. In addition to driving force, the driving direction of the vehicle is subjected to acceleration resistance, rolling resistance, ramp resistance and air resistance before modeling and simulation. According to the force analysis of the vehicle and the parameters of the power transmission system, the maximum climbing degree, the maximum acceleration and the maximum speed of the vehicle and the three dynamic evaluation parameters can be obtained. Then the vehicle model of the pure electric four-drive vehicle is established in the ADVISOR2002 simulation software. Wheel model, motor model, transmission, battery model and main reducer model. Because ADVISOR2002 can only be used in front wheel drive vehicle, it is necessary to develop it again. Firstly, the force of pure electric four drive vehicle is analyzed, and the simulation model of the whole vehicle is established. The dynamic performance of the whole vehicle is simulated by using the new model and the parameters of the whole vehicle and components, and the corresponding simulation results are obtained. The last part, first of all, according to the design, in Anhui Agricultural University Mechanical and Electrical Engineering Park began to test the design of the vehicle. Then through the real vehicle on the road test, the actual measured dynamic performance data and the computer simulation data, there is a little error, but does not affect the correctness of the simulation results, At the same time, it also verifies the rationality of the simulation platform of ADVISOR2002 software needle four drive pure electric vehicle.
【学位授予单位】：安徽农业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U469.72

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