摘要
通过分析柴油机燃油供给系统的故障表现形式及高压油管 的油压波形特征，研究了柴油机燃油供给系统的故障诊断策略。首先，利用转速波动的扭矩 谐波比诊断燃油供给系统是否有故障，再利用最大加速因子进一步确定故障源，最后，从高 压油管的油压波形中提取诊断特征参数，用多参数模糊诊断的方法来诊断燃油供给系统的常 见故障，并将此方法应用于柴油机故障诊断专家系统中，取得了满意的效果。
Based on the analyzing modalities of faults and fuel pressu re waveform from injection line,a research on diagnosis strategy of fuel inject ion system is given.The most accelerate gene is used for ensuring position of fa ult,and the diagnosis character parameters are presented from fuel pressure wa veform of injection line.The fuzzy logic diagnosis method is used for diagnosing ordinary faults.Satisfactory result is got through the application of fault d iagnosis expert system for diesel engine.
出处
《军械工程学院学报》
2000年第2期-,共5页
Journal of Ordnance Engineering College
关键词
故障诊断
柴油机
燃油供给系统
模糊诊断
fault diagnosis
diesel engine
fuel injection system
fuzzy logic diagnosis
