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[1]张宏超,谢 辉,陈 韬,等.爆震传感器信号与HCCI 发动机燃烧参数的相关性[J].天津大学学报(自然科学版),2009,(12):1123-1129.
 ZHANG Hong-chao,XIE Hui,CHEN Tao,et al.Correlation of Knock Sensor Signal and HCCI Engine Combustion Parameters[J].Journal of Tianjin University,2009,(12):1123-1129.
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爆震传感器信号与HCCI 发动机燃烧参数的相关性()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2009年12
页码:
1123-1129
栏目:
机械工程
出版日期:
2009-12-15

文章信息/Info

Title:
Correlation of Knock Sensor Signal and HCCI Engine Combustion Parameters
文章编号:
0493-2137(2009)12-1123-07
作者:
张宏超谢 辉陈 韬胡顺堂赵 华
天津大学内燃机燃烧学国家重点实验室,天津 300072
Author(s):
ZHANG Hong-chaoXIE HuiCHEN TaoHU Shun-tangZHAO Hua
State Key Laboratory of Engines,Tianjin University,Tianjin 300072,China
关键词:
爆震传感器信号HCCI燃烧参数相关性快速傅里叶变换
Keywords:
knock sensor signalHCCI combustion parametercorrelationfast Fourier transform
分类号:
TK4
文献标志码:
A
摘要:
为了实现HCCI 汽油机闭环反馈控制,提出了一种利用爆震传感器信号提取燃烧参数的思路.在装有全可变气门系统的汽油HCCI 发动机上,测取了大量HCCI 工况下爆震传感器信号;应用快速傅里叶变换,用时频分析的方法,从时域和频域提取表征爆震信号强度及相位的特征量,并对它们和HCCI 燃烧参数之间的相关性做了量化比对.分析表明,爆震传感器信号相位特征值与HCCI 发动机燃烧相位参数之间有着很强的相关性,爆震信号起始相位与CA10的相关系数在0.9 以上.HCCI燃烧强度参数与爆震信号的能量参数有着较高的相关性.
Abstract:
In order to implement close-loop feedback control of HCCI gasoline engine,a new thought of extracting HCCI combustion parameters from knock sensor signal was presented. Based on many an experiment on HCCI engine bench equipped with a fully variable valve actuating system,characteristic signals were extracted from the knock sensor signal with fast Fourier transform. Comparisons were made between correlations of different couple parameters standing for combustion parameters and knock characteristic signals respectively. The analysis shows that the knock sensor signal and the combustion parameters are closely related. The correlation coefficient between CA10 and the start phase of the knock signal is more than 0.9. The combustion intensity parameters of HCCI have high correlation coefficient with the knock characteristic signals representing the energy of knock signal.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-03-16;修回日期:2009-05-26.
基金项目:国家重点基础研究发展计划(973 计划)资助项目(2007CB210004);国家自然科学基金资助项目(50776061).
作者简介:张宏超(1981— ),男,博士研究生,zhanghongchao@tju.edu.cn.
通讯作者:谢 辉,xiehui@tju.edu.cn.
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