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Fuel economy and exhaust emissions of a diesel vehicle under real traffic conditions
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2020-02-22 , DOI: 10.1002/ese3.632 Jianbing Gao 1 , Haibo Chen 1 , Kaushali Dave 1 , Junyan Chen 1 , Dongyao Jia 2
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2020-02-22 , DOI: 10.1002/ese3.632 Jianbing Gao 1 , Haibo Chen 1 , Kaushali Dave 1 , Junyan Chen 1 , Dongyao Jia 2
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Traffic and vehicle simulations are often developed individually. However, vehicle performance is heavily affected by traffic conditions. Cosimulations of traffic and vehicle under real‐road situations can reflect the semi‐real‐world performance of vehicles, with traffic conditions being taken into considerations. This paper proposed an approach to combine the traffic and vehicle simulations that are realized by simulation of urban mobility (SUMO) and GT‐Suite software, respectively. In this paper, the sensitivities of the road grade and vehicle speed to the fuel economy and exhaust emissions were investigated; vehicle fuel consumption and regular exhaust emissions on a real‐road were analyzed; the effect of the traffic accident and congestions on fuel consumption and exhaust emissions were quantified. The results indicated that nitrogen oxides (NOx) and soot emission were consistent with fuel consumption rate, which was dominated by vehicle acceleration whose effect was aggravated by road grade. The fuel penalties caused by accident were in the range of 0.015‐0.023 kg depending on the severity of the accidents. The fuel consumption increased from 1.199 to 1.312 kg and 1.559 kg for 900 and 1800 vehicles/h traffic flow cases compared with 180 vehicles/h traffic flow.
中文翻译：
实际交通状况下柴油车的燃油经济性和尾气排放
交通和车辆模拟通常是单独开发的。然而，车辆性能在很大程度上受到交通状况的影响。在考虑实际交通条件的情况下，在现实情况下的交通和车辆的协同仿真可以反映出车辆的半现实世界性能。本文提出了一种将交通和车辆模拟相结合的方法，分别通过模拟城市机动性（SUMO）和GT-Suite软件来实现。本文研究了道路坡度和车速对燃油经济性和废气排放的敏感性；分析了现实道路上的车辆燃油消耗和常规废气排放；量化了交通事故和交通拥堵对燃油消耗和废气排放的影响。结果表明，氮氧化物（NOx）和烟尘排放与燃油消耗率一致，这主要由车辆加速决定，其影响因道路坡度而加剧。事故造成的燃油罚款在0.015-0.023 kg之间，具体取决于事故的严重程度。900和1800辆/小时的流量情况下的燃油消耗从1.199公斤增加到1.312公斤和1.559千克，而180辆/小时的流量则增加了。
更新日期：2020-02-22
中文翻译：
实际交通状况下柴油车的燃油经济性和尾气排放
交通和车辆模拟通常是单独开发的。然而，车辆性能在很大程度上受到交通状况的影响。在考虑实际交通条件的情况下，在现实情况下的交通和车辆的协同仿真可以反映出车辆的半现实世界性能。本文提出了一种将交通和车辆模拟相结合的方法，分别通过模拟城市机动性（SUMO）和GT-Suite软件来实现。本文研究了道路坡度和车速对燃油经济性和废气排放的敏感性；分析了现实道路上的车辆燃油消耗和常规废气排放；量化了交通事故和交通拥堵对燃油消耗和废气排放的影响。结果表明，氮氧化物（NOx）和烟尘排放与燃油消耗率一致，这主要由车辆加速决定，其影响因道路坡度而加剧。事故造成的燃油罚款在0.015-0.023 kg之间，具体取决于事故的严重程度。900和1800辆/小时的流量情况下的燃油消耗从1.199公斤增加到1.312公斤和1.559千克，而180辆/小时的流量则增加了。
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