1993168580全套图纸
摘 要
电子自动控制技术的发展使得自动变速器在汽车上的应用日益广泛，准确、快速、有效地检测自动变速器工作性能对于汽车的动力性、经济性和安全性十分重要。目前，国外对汽车自动变速器工作性能的检测方法广泛采用的方法是实际装车路试，但从试验情况看，该方法费用高、周期长、要求高，而这些缺点恰恰无法满足教学的要求。为克服这些不足，实现在汽车专业教学中对自动变速器性能检测实现台架化是一个比较合理的选择。
本设计主要是针对丰田A340E自动变速器进行展开，首先介绍了A340E自动变速器的内部结构、工作原理及运行情况。在此基础上，提出了一种以教学为目的的自动变速器实验台设计方案。针对它的教学目的，该实验台的特点是结构相对较为简单，实验台设有检测端子和自诊断接口，便于在教学过程中，让学生直观了解并通过设置故障增强其动手能力，以达到良好的教学效果。
关键词：A340E；自动变速器；实验台；教学；故障模拟及检测
I
1993168580全套图纸
ABSTRACT
The development of electronic auto-control technology allows automatic transmission of the application in the car becomes more extensive, accurate, rapid and effective detection performance for the automatic transmission of power motor vehicles, economy and security is very important. At present, foreign automobile automatic transmission performance of the detection method is widely used in the actual loading of the road test, but from the test situation, the method of the high cost of long and demanding, which is precisely the shortcomings of teaching can not meet the requirements. To overcome these deficiencies, the achievement of professional teaching in the automotive automatic transmission performance testing on the bench is to achieve a more reasonable choice.
The design is mainly directed against Toyota A340E automatic transmission to start, first of all introduced the A340E automatic transmission's internal structure, working principle and operation. On this basis, a teaching of the automatic transmission for the purpose of test-bed design. For the purpose of teaching it, the test-bed structure is characterized by relatively simple test-bed has a detection terminal and self-diagnostic interface to facilitate the process of teaching to enable students to understand and intuitive fault by setting the hands to strengthen their capacity in order to achieve good teaching effectiveness.
Key words： A340E ；Automatic Transmission ；Test-bed ；Teaching；Fault simulation and test
II
1993168580全套图纸
目 录
摘要 ........................................................................................................................................ I Abstract ............................................................................................................................... II 第1章 绪论 ...................................................................................................................... 1
1.1研究的目的及意义 ................................................................................................... 1 1.2 国内外研究现状 ...................................................................................................... 2 1.3 设计的主要内容 ...................................................................................................... 3
第2章 A340E自动变速器的结构和工作原理 ..................................................... 4
2.1 A340E自动变速器的结构及工作原理 ................................................................... 4
2.1.1 液力传动机构 ................................................................................................. 4 2.2.2 行星齿轮机构 ................................................................................................. 5 2.2.3 液压控制系统 ................................................................................................. 6 2.2.4 电子控制系统 ................................................................................................. 7 2.2 A340E自动变速器各档动力传递路线[4] ............................................................. 8 2.3 本章小结 ................................................................................................................ 12
第3章 自动变速器性能检测诊断技术 .................................................................. 13
3.1 现有检测内容 ........................................................................................................ 13 3.1.1自动变速器检查 .................................................................................................. 13
3.1.2自动变速器控制系统检查 ............................................................................ 14 3.2自动变速器实验台试验内容 ................................................................................. 14
3.2.1自动变速器实验台的功能 ............................................................................ 15 3.2.2实验方法及步骤制定 .................................................................................... 15 3.2.3 实验性能分析 ............................................................................................... 15 3.3本章小结 ................................................................................................................. 16
第4章 自动变速器实验台总体结构的设计 ......................................................... 17
4.1 实验台的组成及布置 ............................................................................................ 17 4.2 自动变速器实验台台架设计 ................................................................................ 18
1993168580全套图纸
4.2.1 实验台架设计 ............................................................................................... 18 4.2.2 定位件的校核 ............................................................................................... 20 4.3 显示面板的设计 .................................................................................................... 20
4.3.1 组合仪表的布置 ........................................................................................... 20 4.3.2 电脑检测端子的设置 ................................................................................... 20 4.3.3 自动变速器电子控制单元(ECU) ................................................................ 21 4.3.4 自动变速器的结构简图的布置 ................................................................... 22 4.3.5 节气门传感器开度控制旋钮的布置 ........................................................... 23 4.3.6 其他布置 ....................................................................................................... 24 4.4本章小结 ................................................................................................................. 24
第5章 自动变速器实验台动力源的设计 ............................................................. 25
5.1 实验台动力的设计 ................................................................................................ 25
5.1.1 实验台电源的选择 ....................................................................................... 25 5.1.2 驱动电机的选择 ........................................................................................... 25 5.1.3 变频调速器的选择 ....................................................................................... 26 5.2 实验台传动装置设计 ............................................................................................ 28
5.2.1 对传动方案的要求 ....................................................................................... 28 5.2.2 拟定传动方案 ............................................................................................... 28 5.2.3 传动装置的设计计算 ................................................................................... 28 5.2.4 液力变矩器的轴向定位 ............................................................................... 29 5.3 本章小结 ................................................................................................................ 30
第6章 自动变速器实验台的使用故障模拟及检测 ........................................... 31
6.1 自动变速器实验台的使用故障模拟 .................................................................... 31
6.1.1 故障代码读取 ............................................................................................... 31 6.1.2 故障排查流程 ............................................................................................... 32 6.2 电脑检测端子 ........................................................................................................ 34
6.2.1 电脑检测端子的布置 ................................................................................... 35 6.2.2 端子之间的检测 ........................................................................................... 35 6.3 本章小结 ................................................................................................................ 36
结论 ...................................................................................................................................... 37 参考文献 ............................................................................................................................ 38 致谢 ...................................................................................................................................... 39