基于回归分析的发动机HC排放预测模型

Engine HC Emission Prediction Model Based on Regression Analysis

将回归分析方法用在一台经过改造的汽油/柴油双燃料发动机HC排放研究上。以1700r/min@60 N·m工况为例描述了试验设计、模型阶次选择、异常点去除、正态分布假设判断整个过程,获得了精度较高的HC排放模型,通过将试验结果和仿真分析结果进行对比验证了所建模型的正确性。

Regression analysis methods are used to research the HC emission of a modified gasoline/diesel dual-fuel engine.The 1700 rpm_60 N·m working point is taken as an example to describe the entire process of the DOE,model order selection,outliers removal and normal distribution hypothesis estimation in this paper,finally we get the HC emission model with high precision and the correctness of the model has been verified by testing data and simulation results.