汽车点火系统的次级电压仿真算法

Secondary voltage simulation algorithm for automotive ignition system

为提高汽车点火线圈产品设计过程中的精度与效率,提出一种基于电磁路分析的次级电压仿真算法。基于点火系统的工作机理,对点火模块与点火线圈的功能进行仿真,建立了次级电压的电气参数计算模型。分析了点火线圈的磁路结构,以绕组匝数、线径与铁芯长度等参数为输入参量,建立次级电压的工艺与结构参数计算模型,用以减少受参数非线性及磁场因素的影响而导致的计算误差。仿真结果与实测结果误差较小,证明了建模算法的有效性和实用性。

To enhance the accuracy and efficiency in the product design of the automotive ignition coil,a simulation algorithm was proposed based on the electromagnetic analysis to calculate the secondary voltage of the coil.According to the working principle of the ignition system,the functions of the ignition module and the ignition coil were simulated to establish the electrical calculation model for the secondary voltage.The magnetic structure of the ignition coil was analyzed,using the coil turn the wire diameter and the iron core length as input parameters,a calculation model was built for the technological and structural parameters to reduce the calculation error caused by the impact of the nonlinearity of parameters and magnetic factors.The simulated results are in good agreement with the experimental ones,showing the validity and practicability of the modeling algorithm.