湖南大学学报（自然科学版）2016，Vol.43Issue(10)：52-61,10.
面向液压挖掘机电控多路阀的控制系统参数整定∗
Parameter Turning of Control System Based on Electronically Controlled Multi-valve of Hydraulic Excavator
摘要
Abstract
Aimingat on the coupling between the multi-valve structure of the conventional hydraulic excavator and the machine performance,the no-matching problem of machine control generated by the low precision of hydraulic con-trol system,a parameter turning method of control system based on electronically controlled multi-valve of hydraulic excavator was proposed to achieve simplified design of hydraulic excavator multi-valve and adaptive change of the ma-chine control systems.The output of electrical control handles was defined as 0-1 digital signal.Considering the struc-tural characteristics of the multi-valve,the first-order control system of variable parameters for electronically controlled multi-valve of the hydraulic excavator is designed.An evaluating algorithm of parameter tuning was put forward, combining the system shock,energy efficiency,and the following performance.By designing hardware-in-Loop simula-tion,which is formed of the electrical control handles,controller,performance digital platform of hydraulic excavator, it shows that the control systems are effective,and the parameter T and K of the first-order control system,which the controller responds to,can base on the machine performance to be tuned.It is also found that time constant T can be determined by the natural frequency of multi-valve spool and the valve opening,and has smaller correlation with the spool-valve damping ratio.The design method of the hydraulic excavator provides good application value for the ma-chine multi-valve design,which is associated with the design of control and operation.关键词
控制系统/液压挖掘机/数字化平台/性能/时间常数Key words
control systems/hydraulic excavator/digital platform/performance/time constant分类
机械制造引用本文复制引用
王安麟,田光伟,李晓田..面向液压挖掘机电控多路阀的控制系统参数整定∗[J].湖南大学学报（自然科学版）,2016,43(10):52-61,10.基金项目
2012年重大科技成果转化项目(财建[2012]258号) （财建[2012]258号）
