摘 要
面对人均生活水平的不断提升,汽车的普及程度也越来越高。汽车的主要性能之一,就是制动性能,汽车的制动系统是否运行正常同行车安全有着直接的关联。很多大型的交通事故的发生都是因为制动出现了问题,轿车制动系统直接影响行驶安全性和停车的可靠性,只有制动性能优良,制动系统工作可靠,才能充分发挥轿车的其它性能。制动系统是汽车上用以使外界(主要是路面)在汽车某些部分(主要是车轮)施加一定的力,从而对其进行一定程度的强制制动的一系列专门装置。由此可见,对汽车自动系统的常见故障以及维修的研究在当前有着十分重要的意义。汽车制动系统跑偏故障现象,大多是制动系统所引起的,在维修过程途中除了要求维修工有一个良好的诊断思维方法以外,还要求做到认真、仔细才能彻底完全的排除故障。
本文在此基础上以捷达轿车为案例列举了几种常见的汽车制动系统故障,并针对这些故障提出了相应的维修措施。
关键词:汽车制动系统;ABS;常见故障;检测方案;
Abstract
In the face of the continuous improvement of per capita living standards, the popularity of cars is also increasing. One of the main performance of automobile is braking performance, and whether the braking system of automobile runs normally is directly related to the safety of the same car. Many large-scale traffic accidents occur because of braking problems. The car braking system directly affects the driving safety and the reliability of parking. Only when the braking performance is good and the braking system works reliably can the other performance of the car be brought into full play. Brake system is a series of special devices used in automobile to make the outside (mainly road surface) exert certain force in some parts of automobile (mainly wheels), so as to make a certain degree of forced braking. It can be seen that the study of common faults and maintenance of automobile automatic system is of great significance at present. In the course of maintenance, not only the maintenance workers are required to have a good diagnostic thinking method, but also to be careful and careful in order to completely and completely troubleshoot.
On this basis, this paper lists several common automobile brake system faults with Jetta car as a case, and puts forward corresponding maintenance measures for these faults.
Keywords: automobile braking system; ABS; common faults; detection scheme;
目录
第一章 绪论 1
1.1设计背景及意义 1
1.2设计的任务及目标 1
1.3设计要求 1
第二章 捷达轿车的简介 1
(一)目前所使用的制动器分类 2
(二)按制动操纵能源分类 2
2.2.1按制动能量的传输方式分 3
(三)捷达轿车ABS的结构 3
(四)车速传感器 3
(五)电子控制单元(ECU) 3
第三章 制动系统常见故障原因分析 3
(一) ABS的故障诊断 3
(二) ABS主要元件检修 4
3.2.1 速度传感器的检修 4
3.2.2 液压调节器及电子控制单元的检修 4
(三) 制动失效 4
(四) 制动不灵 4
第四章故障案例分析 5
4.1制动故障现象 5
4.2故障原因分析与诊断 5
4.3故障分析流程图 6
4.4故障排除 7
结论 10
参考文献 11
致谢 12