基于WLTC和CLTC_C循环的轻型柴油车油耗及排放的试验研究
Experimental Study on Fuel Consumption and Emission of Light-duty Diesel Vehicle Based on WLTC and CLTC_C Cycle
邓亮亮 1杨闯 1陈静2
作者信息
- 1. 江西五十铃发动机有限公司,江西 南昌 330200
- 2. 江西五十铃发动机有限公司,江西 南昌 330200;吉林大学汽车仿真与控制国家重点实验室,吉林 长春 130025;吉林大学汽车工程学院,吉林 长春 130025
- 折叠
摘要
基于WLTC和CLTC_C循环,阐述了一种动态修正方法,研究轻型柴油车在不同磨合里程下的油耗差异,以及动态修正对循环油耗和循环NOx排放的影响.研究结果表明,车辆磨合 10 000 km后,WLTC与CLTC_C循环油耗均降幅明显,分别降低 41.5%和4.4%;车辆磨合 15 000 km后,WLTC与CLTC_C循环油耗降幅不明显,分别降低 0.2%和 0.35%.动态修正对降低WLTC循环NOx排放效果明显,同时对WLTC循环油耗影响较小,在磨合 5 700 km和磨合 15 000 km两种情况下,NOx排放分别降低 55.3%和 54.4%,油耗仅分别增加 1.2%和 1.4%.此外,磨合 15 000 km的CLTC_C循环油耗在添加动态修正后仅增加 1.4%.
Abstract
A dynamic correction approach is introduced along with the fuel consumption discrepancy of a light-duty diesel vehicle under various running-in mileages and the impact of dynamic correction on fuel consumption and NOx emissions based on WLTC and CLTC_C cycles.Several pieces of data indicate that the fuel consumption of WLTC and CLTC_C decreases dramatically after the vehicle has run in for 10 000 km,by 41.5%and 4.4%,respectively,compared to the initial 0 km.Following 15 000 km of running-in,there is a minor reduction of 0.2%and 0.35%in the fuel consumption of WLTC and CLTC_C,respectively,with little fluctuation when compared to 10 000 km.In the 5 700 km and 15 000 km scenarios,dynamic correction for the WLTC results in a NOx emission reduction ratio of 55.3%and 54.4%,respectively,but there is minimal effect on fuel consumption,increasing by 1.2%and 1.4%,respectively.Furthermore,in the case of a 15 000 km running-in,the fuel consumption of CLTC-C increases by just 1.4%after adding dynamic correction.
关键词
轻型柴油车/WLTC循环/CLTC_C循环/动态修正/油耗/NOx排放Key words
light-duty diesel vehicle/WLTC cycle/CLTC_C cycle/dynamic correction/fuel consumption/NOx emissions引用本文复制引用
出版年
2024
NETL
NSTL
万方数据