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Estimating On-road NOx Emissions of Euro 6 Light-duty Diesel Vehicles

Euro6 소형 경유자동차의 실제 도로 주행 NOx 배출량 평가

  • 박연재 (서울시립대학교 일반대학원 환경공학과) ;
  • 박준홍 (국립환경과학원 교통환경연구소) ;
  • 이재영 (서울시립대학교 일반대학원 환경공학과)
  • Received : 2016.10.17
  • Accepted : 2016.11.23
  • Published : 2016.12.30

Abstract

To protect air pollution of urban area from motor vehicles, emission limits for diesel vehicles have been dramatically lowered in short period. But recent studies have shown that on-road NOx emissions of light-duty diesel vehicles are considerably higher than the values measured with laboratory test procedures used for emission certification. To tackle with this issue, Ministry of Environment have a plan to introduce EU RDE-LDV (Real-driving Emission-Light-duty Vehicle) regulation. In this study, 4 Euro 6 diesel vehicles have been tested with the new test procedures published by EU to estimate on-road NOx emissions using PEMS (Portable Emission Measurement System). The results have shown that the requirements of EU RDE-LDV could be met in driving condition of metropolitan area for constitution of test routes and validity of test results. In analysing with Moving Averaging Window method the completeness and normality of test data were validated with the requirement. On-road NOx emissions were quite deviated as test vehicles and higher than the new limit of on-road NOx emission enforced from Sept. 2017, which means that RDE-LDV can effectively reduce NOx emission of diesel vehicles in real driving conditions of Korea.

Keywords

References

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