汽车ABS测试原理和检测方法的研究毕业论文.doc

摘 要 随着经济的发展和科学技术的不断进步，越来越多的先进技术应用于汽车上，使汽车的性能得到很大提高，同时，汽车的拥有量与日俱增。为了能够对汽车的技术性能及时监测和检测，保证汽车使用的安全性和可靠性，汽车检测技术显得越发重要。 汽车制动时，纵向制动力和侧向制动力的大小与滑移率有密切的关系，当滑移率处于一定范围值时，汽车能够获得较大的纵向制动力和侧向制动力，从而使汽车获得较大的纵向制动性能和侧向稳定性。ABS就是控制车轮的制动力使滑移率保持在纵向制动力和侧向制动力都相对较大的区域内的装置。 本文在检测理论方面，通过对汽车ABS工作过程中车轮线速度变化规律进行分析，研究出方便切实可行的检测理论和检测方法。分析了有ABS和没有ABS或ABS失效时车轮线速度变化，确定了滑移率的最佳值。再此基础上，提出利用同车轮间接接触的飞轮的运动能量，模拟汽车运动时的能量；利用飞轮受到车轮制动时反作用在车轮上的惯性力，模拟代替制动时地面提供给车轮的地面作用力的新设计思路。为汽车ABS检测实验台的设计提供了理论依据。 关键词：ABS； 检测方法； 车轮线速度 ABSTRACT Along with the unceasing advance of science and technology and the development of economy, more and more advanced technique that used on automobile makes the performance of automobile get great raising, at the same time, the automobile possess quantity grows increasingly. To be able to inspect the performance of automobile in time, guarantee automobile reliability and safety, automobile detection technology looks the more importance. The size of longitudinal brake force and the brake force of side direction have close relation with slip rate when automobile brakes, when slip rate is in some scope, automobile can get high longitudinal brake force and the brake force of side direction, so it can make automobile get higher longitudinal brake performance and the stability of side direction. ABS is the installation that controls the brake force and makes slip rate in some area that the size of longitudinal brake force and the brake force of side direction can get high. This paper based on the testing theory, based on the working process of ABS car wheel speed variation analysis, the research of the convenient practical testing theory and test methods. In the aspect of theory, using the theory of mechanical motion, automobile wheel brake when actual bearing simulation. With the wheels of the indirect contact with the sports car, energy when energy. By using the flywheel wheel braking force in the wheel reaction, instead of braking ground provide the ground forces wheels of new design idea. Fo