| 柴油机燃油供给系非解体故障快速诊断方法研究 |
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| 引用本文： | 吕新源,王林冲.柴油机燃油供给系非解体故障快速诊断方法研究[J].中国农机化,2006(4):80-81. |
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| 作者姓名： | 吕新源 王林冲 |
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| 作者单位： | 1. 浙江省绍兴市农业局,312000
2. 江苏省启东市农业机械推广站,226200 |
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| 摘 要： | 柴油机燃油喷射系统的各主要零件工作异常,会在高压油路中的燃油压力波形上反映出来,检测高压油管内的燃油压力波形是一种有效诊断燃油喷射系统故障的方法。本文通过对压力波形信号的小波分解提取特征参数,并将特征参数作为输入层变量,建立BP神经网络进行快速故障诊断。
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| 关 键 词： | 柴油机 燃油喷射系统 压力波动 小波分解 神经网络 故障诊断 |
| 文章编号： | 1006-7205（2006）04-0080-02 |
| 收稿时间： | 2006-07-12 |
| 修稿时间： | 2006年7月12日 |
Study on Non-disassembly Fault Diagnosis Technology of Fuel Injection System of Diesel Engine |
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| LU Xin-yuan,WANG Lin-chong.Study on Non-disassembly Fault Diagnosis Technology of Fuel Injection System of Diesel Engine[J].Chinese Agricul Tural Mechanization,2006(4):80-81. |
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| Authors: | LU Xin-yuan WANG Lin-chong |
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| Abstract: | The fault of diesel engine fuel injection system can be reflected by the fuel pressure wave in high pressure fuel pipe. By the using of discrete wavelet transform of pressure wave, 6 characteristic parameters in time-domains can be identified by low frequency component, 2 characteristic parameters of low frequency energy factor and high frequency energy factor in frequency-domains can be acquired through calculating low frequency factor wave and high frequency factor wave. The fault codes can be acquired through BP ANN which takes the 8 characteristic parameters as input variable. |
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| Keywords: | diesel engine fuel injection system pressure wave wavelet analysis ANN fault diagnosis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
