改进型离子电流检测系统在汽油机爆燃检测中的应用研究一

来源 :2016中国汽车工程学会年会 | 被引量 : 0次 | 上传用户：frankcomet

【摘要】

：

采用一种改进型的串联式离子电流检测系统，在一台1.3L四缸增压汽油机上开展了离子电流信号的典型特性，尤其是爆燃工况下特性的试验研究.结果表明：该检测系统离子电流的频率特性可较好地判定中强爆燃工况，但在轻微爆燃工况有一定的局限；离子电流积分值能进一步提高爆燃工况判定的准确率，达到87.2％.针对爆燃强度的识别，离子电流峰值和平均幅值与爆燃强度有很强的正相关性，采用加权平均的数学方法能优化离子电流爆燃

【作者】

：

李超陆海峰张光攀胡宗杰李理光

【机构】

：

同济大学汽车学院同济大学汽车学院;同济大学中德学院

【出处】

：

2016中国汽车工程学会年会

【发表日期】

：

2016年4期

【关键词】

：

汽油机离子电流爆燃频率特性相关性

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