电动汽车动力传动系统参数匹配与动力性Matlab仿真

摘要在经济快速发展、科技迅速更新换代的今天，汽车工业也在发生着巨大变化，然而能源的不断消耗和环境污染等问题也在逐渐加剧，因此电动汽车凭借着自身环保性这一主要优点备受关注。本文对某型电动汽车的动力系统和两档变速器进行参数匹配以及动力性仿真计算。84195

首先根据汽车的性能要求对电机匹配参数，然后在此基础上利用机械设计的相关知识确定两档变速器的两个档位及主减速器的传动比及最大传递扭矩，进而完成轮系设计和轴的设计，并对齿轮、轴和轴承进行校核，之后用AutoCAD绘制了齿轮和轴的零件图，最后利用Matlab软件完成整车的动力性仿真计算，得出最高车速、最大爬坡度、加速时间，验证了设计的合理性。

毕业论文关键词电动汽车电机匹配两档变速器轮系设计仿真计算

毕业设计说明书外文摘要

Title Electric Vehicle powertrain parameters matching and the dynamic simulation

Abstract In the rapid economic development, rapid technological upgrading today, the automotive industry is also undergoing tremendous changes, but the constant energy consumption and environmental pollution problems are gradually increased, so electric vehicles with its own environmental advantages of this major award attention。 In this paper, a type of electric vehicle powertrain and two speed transmission parameters matching and dynamic simulation。

First, according to the performance requirements of the motor car matching parameters,and then use the knowledge of mechanical design based on this determination of two stalls and two speed transmission final drive gear ratio and maximum torque transmission , and then to complete the design and the design of the shaft gear train, and gears, shafts and bearings checked, followed by AutoCAD drawing gear and shaft parts diagram, Finally Matlab software to complete dynamic simulation of the vehicle, draw up speed, maximum climbing degree, acceleration time, the rationality of design。

Keywords electric vehicle motor matching two speed transmission Gear train design simulation

1 绪论 1

1。1 课题研究背景 1

1。2。电动汽车国内外发展概况 3

1。3 电动汽车变速器发展概况 4

1。4 课题设计要求及主要内容 5

2 传动系参数匹配 6

2。1 电动车基本参数及行驶性能要求 6

2。2 驱动电机参数匹配 7

2。3 传动比的确定 9

3 齿轮的设计与校核 12

3。1 中心距的选择 12

3。2 齿轮参数确定 12

3。3 齿轮弯曲应力计算 15

3。4 齿轮接触应力计算 17

4 轴和轴承的设计与校核 19

4。1 轴的设计计算 19

4。2 轴的强度校核 21

4。3 轴的刚度校核 23

4。4 轴承的校核 24

5 动力性仿真计算 26 电动汽车动力传动系统参数匹配与动力性Matlab仿真:http://www.youerw.com/jixie/lunwen_99743.html