大型客车燃油消耗量分布模型的拟合优度检验  

The Good-of-fit Test of Distribution Model for the Fuel Consumption of Large Buses

作　　者：高有山[1] 李兴虎[1] 王爱红[2] 

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191 [2]太原科技大学机械电子工程学院,太原030024

出　　处：《汽车工程》2009年第11期1077-1080,共4页Automotive Engineering

基　　金：国家科技支撑计划项目(2007BAA09B05)资助

摘　　要：以102个大型客车燃油消耗量样本的D、A2和W2统计量对6种分布模型进行拟合优度检验,包括概率分布检验和似然比择优检验。结果表明,Gamma分布比其它分布模型更好地描述大型客车燃油消耗量的分布特征。用Gamma分布模型计算了满足不同燃料消耗限值的客车百分比,为合理设定燃料消耗限值提供了理论依据。The good-of-fit test, covering probability distribution test and likelihood ratio test is conducted on six distribution models with the D, A2 and W2 statistics of 102 fuel consumption samples of large buses. The results show that Gamma distribution can better describe the distribution characteristics of fuel consumption of large buses compared with other distribution models. Finally the percentages of large buses meeting different fuel consumption limits are calculated by using Gamma distribution model. This provides a theoretical base for rationally setting fuel consumption limits.

关 键 词：大型客车 燃油消耗量 分布模型 拟合优度检验 

分 类 号：U461.8[机械工程—车辆工程]