%0 Journal Article
%T 国六重型柴油车劣化排放特性分析<br>Analysis of Deteriorated Emission Characteristics of China VI Heavy-Duty Diesel Vehicle
%A 鞠伟达
%A 鲁永亮
%A 李智
%J Dynamical Systems and Control
%P 181-191
%@ 2325-6761
%D 2024
%I Hans Publishing
%R 10.12677/dsc.2024.134018
%X 重型柴油车是我国目前最主要的交通工具&#65292;并占据了较高的NO<sub>x</sub>和PM排放&#65292;基于实际道路行驶测量方法(PEMS)模拟后处理中毒和老化情况下的实车排放&#65292;选取了一辆技术路线为&#65306;EGR + DOC + DPF + SCR的国六重型柴油车进行不同劣化件组合的排放分析。结果表明&#65306;DOC失效比SCR转化效率降低产生的NO<sub>x</sub>排放更多&#65307;低速行驶时&#65292;EGR率过高反而会导致排放增加&#65307;目前国六的技术路线能够很大程度上起到净化排气的作用&#65307;任何一个部件的异常工作状态都会导致排放明显增加。<br>Heavy duty diesel vehicles are currently the most important means of transportation in China, accounting for a high proportion of NO<sub>x</sub> and PM emissions. Based on the actual road driving measurement method (PEMS) simulation of post treatment emissions under poisoning and aging conditions, a national VI heavy duty diesel vehicle with a technical route of EGR + DOC + DPF + SCR was selected for emission analysis of different deteriorated component combinations. The results show that DOC failure produces more NO<sub>x</sub> emissions than SCR conversion efficiency reduction; When driving at low speeds, an excessively high EGR rate can actually lead to an increase in emissions; At present, the technical route of National VI can largely play a role in purifying exhaust gas; The abnormal working state of any component will lead to a significant increase in emissions.
%K 重型柴油车&#65292
%K 国六&#65292
%K 排放特性&#65292
%K 实际道路行驶测量方法<br>Heavy-Duty Diesel Vehicle
%K China VI
%K Emission Characteristics
%K Real-World Driving Measurement Method
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=98827