重型柴油机代表性瞬态循环的开发及排放特性研究
Research on development and emission characteristics of representative transient cycle of heavy-duty diesel engine
针对因WHTC工况难以准确的反映重型柴油机真实道路的运行情况,从而导致实验室的排放认证结果与实际行驶排放间出现显著差异的问题,提出了一种两步法的代表性瞬态循环开发流程,首先建立了重型柴油车实际驾驶循环HRDC,并据此开发了重型柴油机实际瞬态循环HRTC.试验结果表明,相较于WHTC,运行在HRTC的重型柴油机NOx,碳烟与PN比排放分别增大了 36.69%,4.57%和 76.28%,WHTC显著的低估了真实道路的排放程度;HRTC瞬态碳烟排放相…查看全部>>
Aiming at the problem that the WHTC condition is difficult to accurately reflect the real road operation of heavy-duty diesel engines,which leads to a significant difference between the laboratory emission certification results and the actual driving emissions,a two-step representative transient cycle development process was proposed.Firstly,the actual driving cycle HRDC of heavy-duty diesel vehicle was established,and the actual transient cycle HRTC o…查看全部>>
刘庚非;徐怀民;曾鹏霏;邬斌扬;苏万华;
TK423.2
heavy-duty diesel engine realistic road driving cycle representative transient cycle transient emission
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