摘要
机动车比功率(vsp)已经成为交通油耗和排放模型必不可少的参数。基于西安市快速路上大量逐秒速度数据,本文研究了不同平均行程速度区间下的vsp分布。之前的研究针对的是低速区间(0-20km/h)和高速区间(>=60km/h),而文章研究的是介于二者之间的速度区间下的vsp分布。首先,采集出租车在快速路上实际运行的数据并以此建立轻型车的VSP分布,然后对不同平均行程速度区间下的vsp分布进行对比分析,发现vsp分布与平均行程速度具有规律性:vsp在正区间的分布比例明显大于负区间,在高速区间下vsp接近于正态分布。
Vehicle specific power (vsp) has become essential parameters forthe model of transportation fuel consumption and emissions. Based on a lot-by-second speed data in Xi'an fast way, we studied thevsp distribution under different average travel speed section. Previous studies targeted at the low-speed range (0-20km / h) and the high-speed range (> = 60km / h), but the aim of this study is the vsp distributed of speed range between the two under. First, to acquire the data of a taxi’s actual operationon the rapid way and to establish light vehicles’sVSPdistribution, followed by comparative analysis of the vsp distribution of different average travel speed range and we found the regularity between vsp distribution and average travel speed: vsp’s distribution ratio in the positive range is significantly greater than the negative range and under the high speed range VSP is close to normal distribution.
出处
《汽车实用技术》
2016年第6期60-62,共3页
Automobile Applied Technology
关键词
比功率分布
平均速度
对比分析
Vehicle specific power distribution
average speed
comparative analysis
