衔铁偏心对高速电磁阀全工况电磁力的影响  

Influence of Armature Eccentricity on Electromagnetic Force of High-Speed Solenoid Valve in All Operating Conditions

作　　者：刘鹏 张如琴 欧阳宇文 范立云[2] Liu Peng;Zhang Ruqin;Ouyang Yuwen;Fan Liyun(College of Automotive and Mechanical Engineering,Changsha University of Science and Technology,Changsha 410114,China;College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114 [2]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《内燃机学报》2024年第2期169-175,共7页Transactions of Csice

基　　金：国家自然科学基金资助项目(52001032,51679048);湖南省自然科学基金资助项目(2021JJ40588);汽车测控与安全四川省重点实验室资助项目(QCCK2020-008).

摘　　要：高速电磁阀(HSV)是电控燃油喷射系统的关键部件,其衔铁偏心作用是影响高速电磁阀静、动态特性的重要因素.为了揭示高速电磁阀衔铁偏心作用对其全工况电磁力的影响规律,结合试验和数值模拟方法,建立了高速电磁阀有限元仿真模型,并通过与试验电磁力对比验证了其精度,最大误差为4.8%;分析了衔铁中心偏移和偏转及其交互作用对高速电磁阀电磁力的影响.结果表明:随着衔铁中心偏移率增大,轴向电磁力逐渐变小,而径向电磁力逐渐增大,但总体对电磁力的影响不显著;随着衔铁中心偏转角增大,轴向电磁力近似呈线性下降,轴向电磁力最大降低率为59.5%,而径向电磁力虽然逐渐增大,但增幅不明显;衔铁中心偏移与绕偏移方向偏转交互作用对轴向电磁力的影响最显著,全工况下该交互因子与轴向电磁力的相关系数绝对值最小为0.471,最大为0.624.High-speed solenoid valve(HSV)is a key component of the electronic fuel injection system.Its armature eccentricities are important factors that affect the static and dynamic characteristics of HSV.In order to reveal the influence of the armature eccentricities of HSV on the electromagnetic force in all operating conditions,a method combined with the experiment and numerical simulation was employed.First,the finite element model of HSV was established and its accuracy was verified with the maximum error 4.8%by comparing with the tested electromagnetic force.Then,the influence of armature center offset and deflection and their interaction on the electromagnetic force of HSV was analyzed.The results show that the axial electromagnetic force decreases and the radial electromagnetic force increases with the increase of the offset rate,but the overall effect on the electromagnetic force is not significant.With the increase of deflection angle,the axial electromagnetic force decreases approximately linearly with the maximum reduction rate of 59.5%,while the radial electromagnetic force increases gradually with a very small pace.The interaction between the center offset and the center deflection of armature around the offset direction has a significant effect on the axial electromagnetic force.The correlation coefficient absolute values of the interaction factor on the axial electromagnetic force in all operating conditions are 0.471 at the minimum and 0.624 at the maximum.

关 键 词：高速电磁阀 电磁力 中心偏移 中心偏转 交互作用 

分 类 号：TK421.4[动力工程及工程热物理—动力机械及工程]