导　　师： 林怡青

学科专业： 080203

授予学位： 硕士

作　　者： ;

机构地区： 广东工业大学

摘　　要： 本课题为广州市科技计划项目资助课题/(项目编号:2002J1-C0301/)的后续课题。随着GB7258-2004“机动车运行安全”国家标准的实施,国内汽车防抱制动系统/(Anti-lock Braking System,简称ABS/)的市场需求迅速膨胀,给生产厂家带来产品开发和检测方面的巨大压力。国家交通部发布了行业标准JT//T510-2004“汽车防抱制动系统检测技术条件”,给汽车防抱制动系统检测设备提出了具体的要求,国产汽车防抱制动系统检测设备面临蓬勃发展的机遇。本课题针对广州市某ABS生产企业的需求,研究和设计了能对大吨位气压制动汽车的防抱制动系统产品进行检测的室内试验台。 本文阐述了目前汽车ABS性能测试的现状,论述了进行汽车ABS性能测试的室内试验台研究与开发的必要性和紧迫性。本文介绍了汽车制动的基本原理,分析了传统汽车制动系统在汽车行车紧急制动车轮被抱死时,发生侧滑、方向失去控制等问题,介绍了汽车防抱死制动系统/(ABS/)的功能,论述了在传统汽车制动系统中配置ABS的必要性以及ABS的检测理论。根据ABS产品性能的不同检测要求设计了ABS试验台的不同方案:单轮模型的试验台及整车模型的试验台,并论述了试验台的检测原理。 本文根据机械系统的等效动力学模型原理对试验台的惯量系统进行了精确的设计计算,并分析了试验台的惯量系统的模型误差。 在机械系统主要设计参数这部分内容中,根据试验台的工作要求进行了电机类型的选择,根据试验台的检测参数如车速及汽车质量等进行了电机型号的计算选择;分析了启动及制动时车轮在试验台上的受力情况,进而研究试验台滚筒的受力,进行滚筒轴轴承的寿命计算;研究了制动时滚筒轴所受的摩擦力矩,为试验台的增速器的设计提供依据,计算了增速器的运动及动力参数,完成了增速� The paper expounds the testing actuality of the performance of automotive ABS and discusses the necessity and urgency of the research of ABS test benches. It introduces the working principle of automotive brake. It analyses the problem of side and uncontrollability of direction of traditional braking system and the function of ABS. It discusses the necessity of equipped ABS in tradition braking system and the theory of ABS test. Different scheme of the ABS test benches have raised based on different test requirement of ABS. The test benches of one wheel model and the whole vehicle model are designed.The paper designs the inertia system of test bench accurately based on the theory of kinetics equivalent model of mechanical system. It analyzes the model error of the inertia system of the test bench. It makes the choice of the kinds of motor based on the working condition of the test bench. It analyzes the forces that the wheel is taken effect on the test bench at starting and braking. It discusses the forces that the roller is taken effect. It calculates the life expectancy of the bearing. It discusses the torque that the roller is taken effect at braking. It calculates the kinetic parameter and designs the gear transmission case. In order to know the stress and distortion in the shelf and the roller shaft, it makes FEA for the shelf and the roller shaft. It calculates the allowable non-balance quantity of the flywheel and roller.This paper has designed the whole design plan of the mechanical system of the test bench. In the appendix there are the whole design plans of the mechanical system of the test bench for single wheel model and the whole vehicle model. The design scheme has beem accepeted by the producer, it will been carried out recently.

关 键 词： 汽车 试验台 滑移率 惯量系统 误差分析

领　　域： [机械工程] [交通运输工程] [交通运输工程]