| Issue |
E3S Web Conf.
Volume 268, 2021
2020 6th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2020)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 11 | |
| DOI | https://doi.org/10.1051/e3sconf/202126801003 | |
| Published online | 11 June 2021 | |
Verification of PEMS measurement accuracy based on light vehicle emission test system
1 Suzhou Automotive Research Institute, Tsinghua University (Wu jiang), Suzhou 215200, China
2 Isuzu Auto Co., LTD., Tokyo, Japan
3 Suzhou Hua ye Testing Technology Service Co., LTD., Suzhou 215200, China
* Corresponding author: 18550057668@163.com
For the requirements of the portable emission measurement system (PEMS) measurement accuracy for limits and measurement methods for emissions from light-duty vehicles(CHINA 6), based on the light-duty vehicle emission test system in steady-state conditions and WLTC conditions for PEMS gaseous pollutants, mass flow rate , particle number (PN) verify accuracy of measurement. The results showed that the relative measurement errors of CO, CO2, NOx, fuel consumption and mass flow rate were −5.49%, 2.53%, 10.55%, 2.09% and −2.79%. The relative measurement errors of CO, CO2, NOx, fuel consumption and PN under WLTC condition were 6.67%, 2.54%, 12.96%, 2.37% and −16.08%, which meeting the requirements of the regulations.
Key words: light vehicle / portable / emission testing / accuracy of measurement
© The Authors, published by EDP Sciences, 2021
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