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Review

State-of-the-Art of Establishing Test Procedures for Real Driving Gaseous Emissions from Light- and Heavy-Duty Vehicles

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Biofuel Engine Research Facility, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
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Centre for Green Technology, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW 2007, Australia
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BUET—Japan Institute of Disaster Prevention and Urban Safety (BUET-JIDPUS), Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
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International Training Network (ITN), Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
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Department of Civil, Environmental, and Geomatics Engineering, Florida Atlantic University, 777 Glades Road Building 36, Boca Raton, FL 33431, USA
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Asian Disaster Preparedness Center (ADPC), Dhaka 1206, Bangladesh
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Petromax Refinery Ltd., Khulna 9351, Bangladesh
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School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
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Author to whom correspondence should be addressed.
Academic Editor: Attilio Converti
Energies 2021, 14(14), 4195; https://doi.org/10.3390/en14144195
Received: 17 June 2021 / Revised: 5 July 2021 / Accepted: 7 July 2021 / Published: 12 July 2021
Air pollution caused by vehicle emissions has raised serious public health concerns. Vehicle emissions generally depend on many factors, such as the nature of the vehicle, driving style, traffic conditions, emission control technologies, and operational conditions. Concerns about the certification cycles used by various regulatory authorities are growing due to the difference in emission during certification procedure and Real Driving Emissions (RDE). Under laboratory conditions, certification tests are performed in a ‘chassis dynamometer’ for light-duty vehicles (LDVs) and an ‘engine dynamometer’ for heavy-duty vehicles (HDVs). As a result, the test drive cycles used to measure the automotive emissions do not correctly reflect the vehicle’s real-world driving pattern. Consequently, the RDE regulation is being phased in to reduce the disparity between type approval and vehicle’s real-world emissions. According to this review, different variables such as traffic signals, driving dynamics, congestions, altitude, ambient temperature, and so on have a major influence on actual driving pollution. Aside from that, cold-start and hot-start have been shown to have an effect on on-road pollution. Contrary to common opinion, new technology such as start-stop systems boost automotive emissions rather than decreasing them owing to unfavourable conditions from the point of view of exhaust emissions and exhaust after-treatment systems. In addition, the driving dynamics are not represented in the current laboratory-based test procedures. As a result, it is critical to establish an on-road testing protocol to obtain a true representation of vehicular emissions and reduce emissions to a standard level. The incorporation of RDE clauses into certification procedures would have a positive impact on global air quality. View Full-Text
Keywords: air pollution; real driving emission; driving cycles; portable emission measuring systems; air quality air pollution; real driving emission; driving cycles; portable emission measuring systems; air quality
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MDPI and ACS Style

Rahman, S.M.A.; Fattah, I.M.R.; Ong, H.C.; Ashik, F.R.; Hassan, M.M.; Murshed, M.T.; Imran, M.A.; Rahman, M.H.; Rahman, M.A.; Hasan, M.A.M.; Mahlia, T.M.I. State-of-the-Art of Establishing Test Procedures for Real Driving Gaseous Emissions from Light- and Heavy-Duty Vehicles. Energies 2021, 14, 4195. https://doi.org/10.3390/en14144195

AMA Style

Rahman SMA, Fattah IMR, Ong HC, Ashik FR, Hassan MM, Murshed MT, Imran MA, Rahman MH, Rahman MA, Hasan MAM, Mahlia TMI. State-of-the-Art of Establishing Test Procedures for Real Driving Gaseous Emissions from Light- and Heavy-Duty Vehicles. Energies. 2021; 14(14):4195. https://doi.org/10.3390/en14144195

Chicago/Turabian Style

Rahman, S. M.A., I. M.R. Fattah, Hwai C. Ong, Fajle R. Ashik, Mohammad M. Hassan, Md T. Murshed, Md A. Imran, Md H. Rahman, Md A. Rahman, Mohammad A.M. Hasan, and T. M.I. Mahlia 2021. "State-of-the-Art of Establishing Test Procedures for Real Driving Gaseous Emissions from Light- and Heavy-Duty Vehicles" Energies 14, no. 14: 4195. https://doi.org/10.3390/en14144195

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