自动变速器故障诊断系统初步开发

车辆工程专业毕业论文，论文编号:JX886  论文字数:13812.页数:32

 摘     要
 随着我国汽车保有量的不断攀升、高新技术产品和装置在汽车上被不断引入和普及。自动变速器作为汽车上关键零部件之一，应用范围也在迅速扩大、结构不断改良、功能日趋强大。而汽车维修行业匮乏的高素质人员与之产生的矛盾却日益突出，特别是技师、高级技师层次的技术人员的严重不足。本次设计是根据目前国内的矛盾现状，编辑一款应用程序来辅助技术人员完成维修任务。
 简单说明本次设计程序的主要结构思想和系统工作的方式:在Visual Basic中建立一个工程，命名为“自动变速器诊断系统初步开发”。创建多个窗体作为诊断程序的应用界面，并在其中添加一系列的控件、文本框等。对应的功能键打开之后进行代码的编写，实现他们在诊断程序中查询、上下移动、添加等多种功能。另外要还必须要建立一个数据库，内容为自动变速器的故障现象、产生的原因、对应的诊断方法等资料。最为关键的是数据控件，设计中用它进行与数据库的链接，这样就能从数据库中调用需要的使用的资源。程序完成之后，根据我们实际情况中遇到的故障现象对应查找，从而迅速对其发生的原因有所了解。同时参考给出的解决办法来对变速器进行检查和维修，这样一来就大大缩短了技术人员检查故障的时间。不但大大地提高了维修效率，也降低了发生误查的可能性、免去了一些不必要的维修费用。除了可以辅助技术人员快速有效地对自动变速器进行诊断和维修之外，数据库内的资源能够实现更新、添加等，为以后技术人员的学习提供资料，为自动变速器的结构改进提供技术参考。

关键词：自动变速器  故障诊断  VB编程  Access数据库
 
Abstract
  With China''s auto functions of rising, high-tech products and equipment in the bus was constantly introducing and popularization. Automatic transmission as one of the key components, automotive applications are expanded rapidly, the structure and function of increasing continuously improved. And vehicle repair industry and lack of qualified personnel of contradiction is increasingly prominent, especially the technician, senior technician level of technical personnel seriously insufficient. This design is according to the current domestic situation of contradiction, edit one application to assist technical personnel to complete maintenance tasks.
 Simple design procedure explained the main structure and system of the ideological work mode:In the Visual Basic engineering, establish a named "automatic transmission fault diagnosis system preliminary development". Create multiple forms as a diagnostic procedures of
application, and add to it interface text box control series, etc. Corresponding function key open after the compilation and realize their code in diagnosis program query, move, add functions. In addition to also must establish a database and content for the automatic transmission fault phenomena, the causes and corresponding diagnosis method etc. Most of the key data controls, design is used for database links with it, so they could from the database of the use of resources to call. After completion, according to our program in the actual situation of fault phenomena, thus rapidly search for corresponding causes of its occurrence. While the solution to given reference for inspection and maintenance of transmission, thus greatly shorten the technical personnel of the fault time. Check not only greatly improve the maintenance efficiency, also reduced the likelihood, occur from some unnecessary maintenance costs. Besides can assist technical personnel of automatic transmission effectively and rapidly for diagnosis and

maintenance, database resources can be updated, add, reality for the technical personnel to provide information, studying the structure improvement for automatic transmission provides technical reference.
 
Keywords： Automatic transmission; Fault diagnosis; VB Programming;       
 Access Database

目  录
 中文摘要  2
 英文摘要  3
 目录 5
 第一章     绪论 7
 1.1  研究动机与目的  7
 1.2  研究背景 7
 1.3  研究方法与系统描述  8
 1.4  论文內容概述 8 
 第二章     自动变速器的基本介绍 9 
 2.1  自动变速器的发展  9 
 2.2  自动变速器应用 10
 2.3  自动变速器的优点  11
 2.4  自动变速器的结构 11
 2.4.1  液力变矩器 11
 2.4.2  变速齿轮机构 11
 2.4.3  供油系统 12
 2.4.4  自动换挡控制系统 12
 2.5  自动变速器的工作原理 13
  第三章   关于Visual Basic和Microsoft Office Access基础介绍 14
 3.1  Visual Basic介绍 14
 3.1.1   VB的发展情况 14   
 3.1.2  Visual Basic的特点 15
 3.1.3 Visual Basic 6.0新增功能 16
     3.2    Microsoft Office Access介绍 18
 3.2.1  Access发布历史 18
 3.2.2  Access各部件用途 19
 3.2.3  Access的优点 21
 
 第四章   应用程序设计过程简介 23
      4.1  数据库的建立和编辑 23
         4.1.1 创建数据库 23
         4.1.2  编辑数据库 24
 4.2   诊断系统的设计 25
 第五章     结论 31
 参考文献 32
 致谢 33