【摘要】 介绍了作者开发的柴油机工况监测诊断系统．提出了一种基于数字信号理论的数字滤波法，采用该方法处理内燃机示功图，可以消除通道效应对系统测量精度的影响；并在分析内燃机燃绕特性的基础上，给出了一种校正测量上止点的方法更多还原

【Abstract】 The paper describes the developed monitoring system which can be used in detecting,monitoring and diagnosing of diesel engines.To eliminate the error of passage effect,a digital filtering method for processing indicator diagrams of I.C.engines,which is based on the theory of digital processing,is investigated.On the basis of analyzing combustion characteristic of diesel engines,the paper also gives out a method to correct the error of TDC in cylinder pressure measurrements.更多还原