数字液压缸的新型控制理论和方法  

New Control Theory and Method of the Digital Hydraulic Cylinder

作　　者：李文华[1] 韩健[1] 任兰柱[1] 

机构地区：[1]辽宁工程技术大学,辽宁阜新123000

出　　处：《机械设计与研究》2013年第1期91-93,共3页Machine Design And Research

摘　　要：提出数字液压缸的一种新型控制理论和方法,它将油缸、控制阀组和反馈机构集于一体,以多个高速电磁开关阀集成的模块作为控制流量的机构,由磁致伸缩位移传感器和CPU控制器构成的反馈机构实时反馈活塞的位移和速度,通过产生高频振动的PWM信号控制多个高速电磁开关阀集成的模块进行输出,对输出流量进行比例调节和对流速进行变速控制,从而实现对数字液压缸活塞位移和速度的精确控制。最后说明了它在现在以及将来的应用。Proposed a new control theory and method of the digital hydraulic cylinder, it makes the cylinder, the control valve group and the feedback organization collection in a body, it takes many integrated high-speed solenoid valve module as the organization of the control current capacity, the feedback organization which real-time feedback piston＇s displacement and speed constitute by the magnetostriction position transmitter and CPU controller, sends out the high frequency vibration PWM signal through the controller and control the output of the integrated high-speed solenoid valve module, adjust the output flow proportional and variable speed control on the flow rate, thus realizes to accuracy control the displacement and the speed of piston in the digit hydraulic cylinder. Finally, it illustrates the application in present and future.

关 键 词：数字液压缸 高速电磁开关阀集成模块 控制理论方法 PWM 磁致伸缩位移传感器 

分 类 号：TH131[机械工程—机械制造及自动化]