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基于模式识别的柴油机故障诊断
引用本文:白雷石,刘玫.基于模式识别的柴油机故障诊断[J].控制工程,2002,9(6):87-90.
作者姓名:白雷石  刘玫
作者单位:山东大学,控制科学与工程学院,山东,济南,250061
摘    要:提出一种基于模式识别的故障诊断方法,利用传感器检测柴油机燃油压力波形,并对波形进行数学建模和特征提取,讨论分析了最小距离判别法,选用Euclidean距离,将其应用到柴油机燃油压力波形的故障诊断中,得到相当理想的诊断结果,最后给出两个实验例子,此方法具有运算简单,运算速度快,判别精度高等特点,具有广阔的发展空间。

关 键 词:模式识别  柴油机  故障诊断  传感器  燃油喷射系统
文章编号:1671-7848(2002)06-0087-04
修稿时间:2002年5月6日

Fault Diagnosis of Diesel Engine Pattern Recognition-based
BAI Lei-shi,LIU Mei.Fault Diagnosis of Diesel Engine Pattern Recognition-based[J].Control Engineering of China,2002,9(6):87-90.
Authors:BAI Lei-shi  LIU Mei
Abstract:Diesel engine's faults centralize in fuel system. At present, desk experiments are usually used in diesel gengine's fault diagnosis, which consumes long time, have large machinery and cost high. A new fault diagnosis method pattern recognition-based is brought forward,where diesel engine's fuel pressure wave shape is measured using sensor. Furthermore, we found its mathematics model and distilled its characters. Discriminance of least distance is discussed and discriminance of Euclidean distance is chosen to be used in fault diagnosis of diesel engine's fuel pressure wave shape,which acquired realistic diagnosis results in two real examples. This method has the performances of simple operation, fast speed and high precision, and will be used widely.
Keywords:diesel engine  Euclidean distance  fault diagnosis  pattern recognition
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