摘 要

汽车工业的发展已经有百余年，作为人们最日常使用的出行交通工具，汽车给人类日常生活带来便利的同时也带来了一些严峻的问题。比如资源短缺、环境污染、城市噪声及交通拥堵等。而以动力电池为能源且排放无污染的纯电动汽车是解决这些问题的可行方案之一。近年来，在政府政策的支持下，越来越多的厂商开始投身于纯电动汽车的研发。然而目前关于电动汽车的技术仍然不够成熟，有许多关键技术仍需发展。其中亟需解决的问题是进一步提高动力性能，以及增加续驶里程，降低成本。考虑到研发周期和研发成本，在前期对电动汽车进行总体设计并进行性能仿真分析是非常有必要的。

本文基于e-palette车型，研究纯电动车的驱动系统结构及整车布置方案。基于汽车理论的知识，对驱动电机、传动速比和动力电池进行参数匹配计算。并以驱动系统为核心搭建了仿真模型，以动力性以及经济性作为约束条件进行仿真。最后对仿真结果进行初步分析，验证了仿真模型的合理性以及总体设计的可行性。

关键词：电动汽车 总体设计 参数匹配 动力电池 仿真分析

Abstract

The automobile industry has been developing for more than a hundred years. As the most daily transportation means used by people, cars bring convenience to human daily life and also bring some serious problems. Such as resource shortage, environmental pollution, urban noise and traffic congestion. Pure electric vehicles that use power batteries as energy sources and emit no pollution are one of the feasible solutions to these problems. In recent years, with the support of government policies, more and more manufacturers have begun to devote themselves to the research and development of pure electric vehicles. However, the current technology for electric vehicles is still not mature enough, and there are many key technologies that still need to be developed. Among the problems that need to be solved urgently is to further improve the power performance, increase the driving range and reduce the cost. Taking into account the Ramp;D cycle and Ramp;D costs, it is necessary to conduct an overall design of the electric vehicle and perform performance simulation analysis in the early stage.

Based on the e-palette model, this paper studies the structure of the drive system of the pure electric vehicle and the layout of the vehicle. Based on the knowledge of automobile theory, the parameter matching calculation is performed on the drive motor, transmission speed ratio and power battery. The simulation model is built with the drive system as the core, and the simulation is carried out with the power and economy as constraints. Finally, a preliminary analysis of the simulation results verifies the rationality of the simulation model and the feasibility of the overall design.

Keywords: Electric vehicle Overall Design Parameters Matching Battery

Simulation Analysis

目录

第一章 绪论 1

1.1 课题研究目的及意义 1

1.2国内外研究状况 1

1.2.1 无人驾驶汽车研究状况 1

1.2.2 纯电动车总体设计研究现状 1

1.3 本文主要研究和设计内容 2

第二章 动力系统布置及参数匹配 3

2.1驱动系统结构布置 3

2.2驱动电机参数设计 4

2.2.1电机功率计算 4

2.2.2电机转速选择 5

2.2.3电机转矩选择 5

2.3传动系统参数设计 5

2.4动力电池参数设计 6

2.4.1 蓄电池的类型选择 6

2.4.1 电池组参数匹配 7

2.5 e-palette设计实例 9

第三章 电池箱总成catia建模 12

3.1电池组设计 12

3.1.1电池的排列方式 12

3.1.2电池组主要附件设计 13

3.2电池箱设计 14

3.2.1电池箱安装位置 15

3.2.2电池箱主要附件设计 15

第四章 基于AVL CRUISE的驱动系统建模及仿真 17

4.1仿真模型的建立 17

4.2仿真任务的建立 21

4.3仿真结果分析 22

4.3.1动力性仿真结果分析 22

4.3.2经济性仿真结果分析 24

第五章 总结与展望 26

5.1本文总结 26

5.2展望 26

参考文献 27

致谢 29