奇瑞汽车制动钳密封性检测实验台研发及关键技术研究

发布时间：2018-06-05 14:52

  本文选题：气动伺服系统 + 汽车制动钳　； 参考：《安徽工程大学》2016年硕士论文

【摘要】：随着人们生活水平的不断提高,车流量的不断增多。在汽车行驶过程中遇到紧急情况如何快速制动,如何保障人们的生命及财产安全已成为现代汽车行业研究的一个重大热点问题。调查研究表明：汽车制动系统中最主要的组成元素是盘式制动器。而制动器又是由制动钳等元器件构成的,制动钳密封性能的优劣既标志着制动器制动性能的优劣又标志着汽车的安全性与可靠性。因此,对制动钳进行密封性检测十分重要。本文主要研究工作如下：1)本文研制了制动钳密封性检测实验台的总体方案,此方案主要包含下位机系统以及上位机系统。上位机系统主要包含打印机和人机界面,下位机系统主要包含PLC、气动伺服控制模块、自动控制模块、电路控制模块、检测系统以及比例阀等。2)对实验台进行机械部分设计及仿真研究,该机械部分研究主要以制动钳检测过程中的安全及检测准确性等为依据。并使用ADAMS及AMESIM软件进行仿真。3)对实验台气动伺服控制系统进行研究,主要是对该实验台气动伺服控制系统进行数学建模,推导出阀控缸伺服控制系统数学模型,根据阀控缸的数学模型得出其状态空间表达式。并对此表达式的静态特性进行分析。4)对比传统的PID控制算法,对该实验台气动伺服控制系统的极点配置及H∞控制算法进行研究,研究出最佳地提高系统的稳定性及抗干扰能力的智能控制方法。5)针对制动钳密封性检测的特点设计制动钳密封性检测方案,根据检测方案设计检测系统气动原理图,合理选择检测系统所需的硬件并对其进行连接和调试。对此实验台检测系统组态软件进行设计。6)搭建实验台并对其中的控制系统和检测系统进行安装和调试,使其达到预期的要求,实时高效的完成制动钳密封性检测。本文将H∞算法、极点配置算法和PID算法应用到该实验台控制系统中,研制出了制动钳密封性检测实验台,该实验台经过奇瑞制动钳生产线实践检测符合要求。实现了对制动钳密封性自动化检测的目的,达到了高效率及省时省力的作用,其结果对今后密封性检测提供了指导作用。
[Abstract]:With the continuous improvement of people's living standards, the traffic volume is increasing. How to brake quickly and how to ensure the safety of people's life and property in the course of automobile driving has become a hot issue in the research of modern automobile industry. The investigation shows that disc brake is the most important element in automobile braking system. The brake is composed of brake forceps and other components. The sealing performance of brake forceps not only indicates the braking performance of the brake, but also marks the safety and reliability of the vehicle. Therefore, it is very important to test the sealing of brake forceps. The main research work of this paper is as follows: (1) in this paper, the overall scheme of the test bench for testing the sealing performance of brake forceps is developed. The scheme mainly includes the lower computer system and the upper computer system. The upper computer system mainly includes printer and man-machine interface, the lower computer system mainly includes PLC, pneumatic servo control module, automatic control module, circuit control module. The testing system and proportional valve are used to design and simulate the mechanical part of the test bench, which is mainly based on the safety and accuracy of the testing process of brake forceps. The pneumatic servo control system of the experimental platform is studied by using ADAMS and AMESIM software. The mathematical model of the pneumatic servo control system of the experimental platform is established, and the mathematical model of the valve controlled cylinder servo control system is derived. According to the mathematical model of valve control cylinder, the expression of state space is obtained. The static characteristics of the expression are analyzed. 4) compared with the traditional PID control algorithm, the pole assignment and H 鈭，

本文编号：1982368