单片机控制磁粉制动器模拟加载系统的研究(第Ⅰ报)——磁粉制动器性能试验及控制系统设计与分析

Research on Simulation Loading System With Magnetic Particle Brake Controlled by Single Chip Microcomputer (1st half)—— Performance Test of Magnetic Particle Brake and Control System Design and Analysis

摘要: 进行了磁粉制动器动态性能研究,求出了传递函数和制动扭矩过渡过程的响应函数。设计了单片机控制系统,对单片机作为比例调节器进行了改进,求出了控制系统的传递函数和响应函数。通过改进控制系统和完善反馈程序,从外部改善了磁粉制动器的使用性能,提高了系统的加载精度和响应速度。

Abstract: The dynamic performance tests of CZ-20 magnetic particle brake(MPB) were conducted. The transfer function of MPB and response functions of its brake terque transient behaviour were extracted. A single chip microcomputer(SCM) based control system with SCM acting as a proportional controller was developed. The transfer functions of both controller and control system and the response function of the latter were obtained. With improvement of the control system and feedback program, the properties of MPB were promoted and the loading precision as well as response speed of the system were enhanced.