柴油机故障诊断技术的现状与展望

The State and Prospects of Diesel Engine Fault Diagnosis Technique

柴油机作为动力机械，其运行状态的监测和故障诊断越来越受到人们的关注，在柴油机故障诊断领域中的信号处理、故障特征提取及其识别技术方面已略具雏形，某些理论、方法已在实际中得到应用，但多数还处于实验研究阶段，距现场实用还有一定距离。本文对目前研究中的主要几种柴油机故障诊断技术的内容、特点和不足之处进行评述，最后对其发展方向进行讨论。

As a power plant, diesel engine is being payed more and more attention to its in cylinder processes monitoring and fault diagnosis .In the domain of diesel engine′s fault diagnosis , the technique of signal process, charactor abstraction and recognition has formed its own system. Some theories and approaches have been used in practice . However , the most are still being studied . This paper reviews the content, feature and disadvantage of the diesel engine fault diagnosis technique studied at present . Finally the future development trend is discussed briefly .