A wavelet-based combustion noise meter

被引:0
|
作者
Christen, Urs [1 ]
Vantine, Katie [1 ]
Chevalier, Alain [1 ]
Moraal, Paul [1 ]
Scholl, David [2 ]
机构
[1] Ford Forschungszentrum Aachen, Susterfeldstr 200, D-52072 Aachen, Germany
[2] Ford Res & Innovat Ctr, Dearborn, MI 48121 USA
关键词
diesel engine; combustion noise; wavelet transform; shift invariance;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The combustion noise of diesel engines. can be assessed by filtering in-cylinder pressure traces. In this paper, two wavelet-based methods are discussed. It is shown that the statistical properties of a noise meter based on shift-invariant wavelet transforms are improved compared to one that is based on traditional (shift-variant) wavelet transforms. The application of noise metering for pilot injection detection is also presented.
引用
收藏
页码:262 / +
页数:2
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