气动先导式高压电磁阀的动态特性仿真研究  

Dynamic Simulation Analysis of High-pressure Pneumatic Pilot Solenoid Valve

作　　者：叶宏[1] 向忠[1] 胡旭东[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2017年第1期85-91,共7页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家科技支撑计划项目(2014BAF06B03)

摘　　要：对先导结构和主阀芯设计为一体的先导式高压电磁阀进行了仿真分析。根据牛顿第二定律建立该电磁阀的运动方程;针对该阀电磁模块的特点,建立电磁铁的动态模型;以固定容积同时充放气模型为基础,建立气隙腔压力变化微分方程;以电磁阀运动方程为基础,运用Matlab/Simulink实现了具有两段位移的先导式高压电磁阀的动态特性仿真分析。仿真结果表明:对电磁阀气路中的气隙腔模块进行优化,可提高先导小孔泄压过程中压力平衡的建立速度,从而提高电磁阀响应速度。Simulation analysis was carried out for high-pressure pneumatic pilot solenoid valve which integrates the pilot structure and the main valve core. The kinematic equation of the solenoid valve was created based on Newton＇s second law. Then, the dynamic model of the electromagnet was established according to the characteristics of the solenoid valve module, Then, the differential equations of gap chamber pressure change was established based on the model of a fixed volume charge and discharge model. Based on the kinematic equations of solenoid valve, Matlab/Simulink was applied to achieve dynamic simulation analysis of high-pressure pneumatic pilot solenoid valve with two sections of displacement. The simulation results show that the optimization of gap chamber in solenoid valve gas circuit can improve the speed of pressure balance establishment in the pressure relief process of pilot holes and then increase response speed of solenoid valve.

关 键 词：CNG汽车 先导式高压电磁阀 动态特性 SIMULINK 气动 

分 类 号：TS101.9[轻工技术与工程—纺织工程]