液压与气动2026，Vol.50Issue(9)：32-38,7.DOI:10.11832/j.issn.1000-4858.2026.09.004
十进制编码电液数字阀的流量特性分析
Research on Flow Characteristics of Decimal-coded Electro-hydraulic Digital Valve
摘要
Abstract
The electro-hydraulic digital valve has the merits of good linearity and high reliability,which is the fundamental component in hydraulic digital control.To solve the problems that binary-coded valve groups require a large number of on/off valves,and that high-speed on/off valves have small flow rates and large impact,a decimal-coded electro-hydraulic digital flow valve is proposed,whose output flow rates follow a natural number sequence proportional relationship.Compared with binary-coded valve groups,given the same number of on/off valves,this valve achieves a wider flow regulation range and higher precision.Compared with high-speed on/off valves,it controls a larger flow rate with a smaller impact.The structure and working principle of the decimal-coded electro-hydraulic digital valve are first introduced,followed by the establishment of its static flow characteristic model.Combining the stepper motor model and the electromagnet dynamic model,a corresponding Simulink simulation model is constructed.Finally,the actual flow characteristics are obtained through experiments.The results show that at a supply pressure of 3 MPa,the output flow range of the designed valve is 0～19.3733 L/min,with a resolution of approximately 0.1294 L/min.The flow rate exhibits a linear relationship with the input signal with a smaller hysteresis.Under rated output,the step response time is less than 0.07 s,and the theoretical values obtained from the model agree well with the experimental values.关键词
数字阀/离散控制/流量特性/线性Key words
digital hydraulic valves/discrete control of flow/flow characteristics/linearity分类
机械制造引用本文复制引用
李跃松,史孬,张贻哲,徐佳丽,赵重诺..十进制编码电液数字阀的流量特性分析[J].液压与气动,2026,50(9):32-38,7.基金项目
国家自然科学基金(51605145) （51605145）
