JL465Q5发动机点火线圈特性研究  

Study on the Characteristic of Ignition Coil for JL465Q5 Engine

作　　者：张红光[1] 王道静[1] 刘凯[1] 白小磊[1] 梁虹[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124

出　　处：《小型内燃机与摩托车》2011年第2期6-8,共3页Small Internal Combustion Engine and Motorcycle

基　　金：教育部留学回国人员科研启动基金(32310790200801);北京市留学人员科技活动择优资助项目(38005015200701);北京市教委科研计划项目(JC310790200901);北京工业大学研究生科技基金资助项目(ykj-2009-2348)

摘　　要：针对JL465Q5发动机,以ATmega8单片机为核心,成功开发出一套应用天然气的电控点火系统,该系统已在发动机台架试验中成功应用。为了优化发动机的燃烧过程,对点火能量进行了测试。试验采用改变点火线圈的初级回路的闭合时间,测试点火线圈的初级断开电流、次级输出电压和电流,计算出点火线圈的初级储能、次级输出能量以及点火线圈的能量转化效率。试验结果表明,点火线圈的初级储能在闭合时间为6ms时接近饱和,继续增大闭合时间,初级线圈储能和次级输出能量都不再继续增大;随着闭合时间的增长,点火线圈的能量转化效率不断下降。Aimed at the power control for gas engine vehicles,taking ATmega8 single-chip microcomputer as the core,a set of electronically controlled ignition system was successfully developed,which has been successfully applied in the engine bench test.In order to optimize the engine＇s combustion process,the ignition energy was tested.Via changing the closed time of the ignition coil primary circuit,testing the ignition coil primary disconnect current,secondary output voltage and current,we calculate the ignition coil primary storage,secondary ignition coil output energy and the energy conversion efficiency.Test results show that the ignition coil＇s primary energy is close to saturation while the closing time is 6ms;with the continuously increased closing time,the primary and secondary energy storage coil output energy do not continue to increase.That means,with the continuously increased closing time,the efficiency of energy conversion of the ignition coil decreases.

关 键 词：闭合时间 初级储能 点火能量 转化效率 

分 类 号：TK413.9[动力工程及工程热物理—动力机械及工程]