【作者】 刘波；

【导师】 林巨广；

【作者基本信息】 合肥工业大学 ， 机械电子工程， 2007， 硕士

【摘要】 汽车制动性能是确保车辆行驶的主、被动安全性和提升车辆行驶的动力性决定因素之一。气压鼓式制动器作为载重车辆行车制动的主要执行部件，其制动性能的好坏对整车制动性能的发挥起着极为重要的作用。在制动器本身制动性能满足要求的前提下，它在车桥总成上的装配质量也对制动器本身的制动性能产生影响。所以，制动器在车桥总成上装配后，将车桥总成作为一个考核单元，对其整体制动性能进行在线检测是确保桥总成产品质量需要解决的问题。本文在研究和分析汽车行车制动原理为基础之上，参考整车制动性能道路和台架试验的试验规范以及制动器制动性能检测的相关内容，对载重车辆车桥总成制动性能在线检测技术以及试验设备进行了研究。首先，文章以配置鼓式制动器的载重车辆车桥总成为研究对象，分析制动器的结构特点、工作原理以及在制动过程中的受力状况。然后，文章以汽车制动性能评价的三个指标，即制动效能、制动方向稳定性和制动效能的恒定性为理论基础，参考汽车制动相关的检测标准和试验规范，提出了车桥总成在线制动性能检测的评价指标和试验方法。之后，文章以惯量模拟作为试验台设计的出发点，提出了试验台的基本布置方案，阐述了车桥总成制动性能在线试验台的基本工作原理，分析了试验台的惯量模拟过程。最后，文章对试验台的总体结构、关键组成部件的的工作原理和设计原则进行了简单的介绍；概述了试验工作流程并对试验台的基本检测数据进行了简要的分析。更多还原

【Abstract】 Vehicles braking performance is one of the determination factors of ensuring the security of vehicle’s driving and driven properties and also affects its travelling power performance. An air pressure drum brake, as a main power part of Trucks’ brake performance, plays an important role on the effect of complete vehicle brake performance. Under the condition of good performance of brake itself, assembly quality on axle assembling also has an effect on its brake performance. Thus, the brake is assembled on axle, and it is regarded as a complete part. On-line inspection for brake is a problem to be solved for bettering the quality of axle assembling.This paper makes a research on brake performance on-line inspection for axle assembly of Trucks and testing equipments, based on the braking principle of vehicles and with help of relative knowledge about brake testing specifications of complete vehicle on road and test-bed of the test of brake performance. Firstly, according to the axle with drum brake of Trucks, the paper analysizes construction, principle and stress condition during the process of braking. Secondly, being based on three indexes of vehicle brake performance, braking effect, stability of braking orientation and constancy of braking effect, and taking relative inspection standards and testing specification on vehicle brake as reference, the paper puts forward the index and testing method of brake performance on-line inspection for axle assembly. Thirdly, taking inertia simulation as beginning of the test-bed design, puts forward the basic arrangement scheme, elaborates the basic principle of brake performance on-line inspection of axle assembly and analysizes the process of inertia simulation. Lastly, the paper introduces construction of the test-bed, principle of the key components and rule of design brielfly, generalizes testing process and has a simple analysis on datum from test-bed.更多还原