WLTC标准车速曲线对车辆油耗影响的研究  

Research on the Influence of WLTC Standard Speed Curve on Vehicle Fuel Consumption

作　　者：徐红林 方卢耀 张振栋 孙晨 XU Honglin;FANG Luyao;ZHANG Zhendong;SUN Chen

机构地区：[1]上汽大众汽车有限公司,上海201805

出　　处：《上海汽车》2023年第3期29-34,38,共7页Shanghai Auto

摘　　要：汽车公司进行轻型车油耗试验时,车辆都是在底盘测功机上运行WLTC循环工况,然后根据排放中的CO_(2)、CO和HC流量通过碳平衡法计算汽车的油耗。WLTC循环运行时间为1800 s,每1 s都有规定的标准车速,车辆将依据WLTC标准车速曲线行驶,但每个驾驶员完成的WLTC循环速度曲线与标准车速曲线会存在差异,速度差异还将造成不同驾驶员完成WLTC运行的车辆油耗也存在一定的差异。文章总结了造成不同驾驶员油耗差异的主要原因,并给出了评价不同驾驶员油耗结果的多个量化指标,还参考标准总结出了标准车速曲线的油耗修正方法。When the automobile company carries out the consumption test of light-duty ve⁃hicles,the vehicle is running WLTC cycle on the chassis dynamometer,and then the fuel consump⁃tion of vehicle is calculated by carbon balance method according to the flow of CO_(2),CO and HC in the emission.The WLTC cycle lasts for 1800 seconds in total,and there is a standard speed every 1 second.The vehicle runs according to the WLTC standard speed trace.However,the will be differ⁃ences between the standard WLTC cycle speed trace and the speed trace which completed by different drivers,and then which will also cause certain differences in the fuel consumption of vehicles by dif⁃ferent drivers.The main reasons for the difference of fuel consumption among different drivers are summarizes,several quantitative indicators to evaluate the fuel consumption results of different driv⁃ers are given,and the correction method of vehicle fuel consumption with relevant standards are also summarized.

关 键 词：WLTC标准车速曲线 油耗修正方法 加速度 驾驶员 

分 类 号：U467.498[机械工程—车辆工程]