汽车排放寿命的灰色建模预测

Prediction of Exhaust Emission Life Span of Automobile based on Gray Model

针对汽车排放寿命往往需要试验实测才能取得的局限,文章尝试运用灰色预测理论分析汽车排放性能。介绍了灰色预测理论,并根据较少的试验数据,建立灰色GM(1,1)预测模型,用以预测汽车排放寿命。示例表明,预测模型的精度较高,分析方法可行。

In view of the deficiency which exhaust emission life span of automobile can be de- termined only through a lot of tests, the new method of predicting exhaust emission performance is de- veloped by Gray System Theory. The Gray Prediction Theory is introduced, the GM （ 1,1 ） model is es- tablished with fewer testing data, and the model can be used to predict exhaust emission life span of automobile. The instance shows that the calculation value and actual measuring value conform very well, the accuracy of model is good. The new method is practicable.