| 基于小波分析的柴油机燃油系统故障诊断研究 |
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| 引用本文： | 沈寿林,郑海起,张英堂.基于小波分析的柴油机燃油系统故障诊断研究[J].军械工程学院学报,1999(3). |
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| 作者姓名： | 沈寿林 郑海起 张英堂 |
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| 作者单位： | 军械工程学院兵器工程系!石家庄，050003，军械工程学院兵器工程系!石家庄，050003，军械工程学院兵器工程系!石家庄，050003 |
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| 摘 要： | 提出了一种基于小波变换的柴油机燃油系统故障诊断方法。利用夹持在高压油管上的传感器对高压油管外壁弹性变形进行检测，在12150L柴油机喷油泵实验台上进行了大量的实验，对测得的高压油管压力波形进行小波变换，提取反映燃油系统故障状态的特征向量，通过特征参数的变化能有效地诊断燃油系统的各种典型故障。
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| 关 键 词： | 柴油机 燃油系统 故障诊断 小波分析 |
STUDY ON FAULT DIAGNOSIS FOR FUEL INJECTION SYSTEM OF DIESEL ENGINE |
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| Shen Shoulin, Zheng Haiqi, Zhang Yingtang.STUDY ON FAULT DIAGNOSIS FOR FUEL INJECTION SYSTEM OF DIESEL ENGINE[J].Journal of Ordnance Engineering College,1999(3). |
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| Authors: | Shen Shoulin Zheng Haiqi Zhang Yingtang |
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| Abstract: | This paper presents a new method to diagnose faults of fuel injection system of diesel engine by the wavelet - transform. By measuring the elastic deformation of injection line with a clamp - on transducer, a series of tests are taken on a 12150L diesel engine. The fuel pressure waveform is decomposed. The characteristic parameters which show faults state are abstracted. By changing these characteristic parameters, faults of fuel injection system are diagnosed effectively. |
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| Keywords: | diesel engine fuel injection system fault diagnosis wavelet analysis |
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