摘要
为建立更精确的高原高速公路路线运营油耗模型,以雅康高速为例,对改装油耗仪的小汽车进行实地油耗测量,并对所得油耗数据进行分析。研究发现:油耗主要与速度和纵坡坡度有关,其中油耗与速度成二次关系,与纵坡大致成正比例关系;1.6 L小排量轿车最佳经济车速约为90 km·h^(-1),雅康高速设计时速为80 km·h^(-1),说明雅康高速设计具有良好的燃油经济性;纵坡率每增加1%,小汽车相应油耗增加约1.4 L·(100km)^(-1)。以此建立油耗与速度成二次关系、与纵坡成一次线性关系的油耗综合模型,通过对比分析,验证该模型具有良好的适用性。
In order to establish a more accurate fuel consumption model of highland expressway routes,taking Yakang expressway as an example,the fuel consumption of the modified car was measured on the spot.The obtained fuel consumption data were analyzed.It is found that the fuel consumption is mainly related to the speed and the longitudinal slope.The fuel consumption is in a quadratic relationship with the speed,and is in a roughly positive proportion with the longitudinal slope.The optimal economic speed of 1.6 L small displacement car is about 90 km·h^(-1),and the designed speed of Yakang Expressway is 80 km·h^(-1),indicating that Yakang Expressway has good fuel economy.For every 1%increase in the slope rate,the corresponding fuel consumption increases by about 1.4 L·(100km)^(-1).Based on this,a comprehensive model of fuel consumption with a quadratic relationship between fuel consumption and speed and a linear relationship with longitudinal slope is established.Through comparative analysis,it is verified that the model has good applicability.
作者
阳恩慧
李雨枭
吕荣华
狄海波
邱延峻
YANG Enhui;LI Yuxiao;L Ronghua;DI Haibo;QIU YanJun(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;Highway Engineering Key Laboratory of Sichuan Province,Southwest Jiaotong University,Chengdu 610031,China;Sichuan Tibet Expressway Co.,Ltd.,Chengdu 610041,China)
出处
《交通科技与经济》
2022年第6期39-44,共6页
Technology & Economy in Areas of Communications
基金
国家自然科学基金项目(52178438)
四川省交通科技项目(2019-ZL-12)
四川省科技计划项目(21YYJC3270)。
关键词
高速运营油耗
油耗模型
经济速度
道路纵坡
雅康高速
highway operation fuel consumption
fuel consumption model
economic speed
longitudinal slope
Yakang expressway
