运行参数对汽车燃油经济性影响程度的区间分析方法  

Interval mathematics analysis method of running parameters influence on automobile fuel economy

作　　者：何仁[1] 庄志华[1] 郑吉平[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《交通运输工程学报》2007年第3期11-15,共5页Journal of Traffic and Transportation Engineering

基　　金：江苏省交通科学研究计划项目(05T02)

摘　　要：为了提高汽车燃油经济性,介绍了区间数学基本概念,运用Matlab建立了发动机万有特性的数学模型,应用区间数学分析了公交汽车在运行过程中行驶车速、载质量、道路阻力系数等运行参数波动对汽车燃油经济性的影响程度。分析结果表明:车速波动对汽车油耗量的影响程度随着车速的增大而明显增大,但汽车油耗量的波动随载质量的不同相差不大;道路阻力系数波动对汽车油耗量的影响最大,其次是载质量和行驶车速。In order to improve automobile fuel economy, the basic concept of interval mathematics was introduced, the mathematic model of engine universal characteristics was set up by using Matlab, the influence degrees of driving speed, loading mass and road resistance coefficient on automobile fuel economy were analyzed by using interval mathematics. Analysis result indicates that fuel wastage increases with the increase of automobile speed, but it almost changes with the variety of loading mass; the influence of road resistance coefficient is maximal, then to be loading mass and driving speed.

关 键 词：车辆工程 燃油经济性 运行参数 区间数学 

分 类 号：U461.8[机械工程—车辆工程]