电控汽油喷射器电磁特性仿真与磁路参数优化  

Electromagnetic Characteristics Simulation and Magnetic Parameter Optimization for Electronically-controlled Gasoline Injector

作　　者：程强[1] 张振东[1] 郭辉[2] 朱希[1] 

机构地区：[1]上海理工大学汽车工程研究所,上海200093 [2]上海工程技术大学汽车工程学院,上海201620

出　　处：《汽车工程》2015年第6期642-647,共6页Automotive Engineering

基　　金：国家自然科学基金(51275309);上海市教委科研创新项目(13YZ110);上海市研究生创新基金(JWCXSL1201);上海工程技术大学校基金(2011xy28)资助

摘　　要：依据电磁学和机械动力学理论,建立了电控汽油喷油器工作过程的计算模型,以分析其动态响应特性与磁路结构参数之间的耦合关系。以缩短电控汽油喷射器开启和关闭延迟时间为优化目标,利用多目标模拟退火算法对磁路结构参数进行了优化。采用Ansoft Maxwell电磁场仿真软件,对优化前后的磁力线、磁感应强度、电磁力和动态响应特性进行了仿真分析,并通过试验对优化结果进行了验证。结果表明,优化后的电控汽油喷射器的动态响应特性得到了明显的提高。Based on electromagnetic theory and mechanical dynamics, a calculation model for the working process of electronically-controlled gasoline injector is established to analyze the coupled relationship between its dy- namic response characteristics and the structural parameters of magnetic circuit. With minimizing the opening and closing time delays as objectives, the structural parameters of magnetic circuit is optimized by using multi-objective simulated annealing algorithm, and a simulation on the magnetic field line, magnetic induction intensity, electromagnetic force and dynamic response characteristics before and after optimization is conducted and verified by tests. The results show that the dynamic response characteristics of electronic fuel injector are obviously improved after optimization.

关 键 词：汽油喷射器 磁路结构 动态响应 多目标模拟退火算法 

分 类 号：U464.136[机械工程—车辆工程]