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柴油发动机燃油压力波形特征提取方法 被引量:1

A method of abstracting diesel engine fuel pressure waveshape feature
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摘要 阐明了燃油压力波形进行小波分解后,可以消除噪声干扰,提高信噪比。选择小波逼近信号和某些分解信号,提取最大油压、喷油器开启油压、喷射时间、峰值因子和脉冲因子5个诊断特征参数,可以作为每一个输入模式的属性值,即可实现常见供油系统故障的诊断。 ing five diagnose parameters:the maximum fuel pressure,fuel injector opening pressure,injection duration,peak factor and pulse factor,we can get the property value of each input pattern.By doing so,the common failure diagnose of fuel feeding system will be fulfilled.
出处 《内燃机车》 北大核心 2005年第10期18-20,共3页 Diesel Locomotives
关键词 柴油发动机 燃油压力波形 小波分解 波形特征提取 disel engine fuel pressure waveshape wavelet crack waveshape feature abstraction
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