| SUITABILITY OF SEMS EQUIPMENT FOR MONITORING RDE TESTS |
| Jun Woo Jeong 1, Junepyo Cha 2, Mun Soo Chon 2, Kihyung Lee 1 |
1Department of Mechanical Engineering, BK21 FOUR ERICA-ACE Center, Hanyang University
2Department of Automotive Engineering, Korea National University of Transportation |
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| ABSTRACT |
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A portable emission measurement system (PEMS) is expensive and involves complex experimental processes
for performing real driving emission (RDE) tests. An appropriate sensor-based emission measurement system (SEMS) must
be developed to conduct the RDE test because SEMS has inexpensive and simple. To analyze the correlation between PEMS
and SEMS, they are installed on six diesel vehicles, and a RDE test is performed on them. The applicability of the SEMS to
the RDE test is estimated by comparing and analyzing real driving NOx emissions obtained from both the PEMS and SEMS.
The results of laboratory and RDE tests confirm that the SEMS is applicable to RDE tests. Various correlation tests between
the PEMS and SEMS show that the latter can be effectively applied to RDE tests; however, the NOx sensing limit must be
improved. |
| Key Words:
Worldwide harmonized light-duty vehicle test cycle (WLTC), Real driving emissions (RDE), Portable
emissions measurement system (PEMS), Smart emissions measurement system (SEMS), Nitrogen oxides (NOx) |
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Corresponding Author.
Kihyung Lee , Email. 
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