On-Road Emissions of Euro 6d-TEMP Vehicles: Consequences of the Entry into Force of the RDE Regulation in Europe

Morales, Victor Valverde; Clairotte, Michaël; Pavlovic, Jelica; Giechaskiel, Barouch; Bonnel, Pierre

doi:10.4271/2020-01-2219

Cited by 25 publications

(10 citation statements)

References 18 publications

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“…The CO emissions were ten times below the respective limit, while the NO x emissions were half. The results are in good agreement with other studies which showed that the emissions of Euro 6d-temp (or, since September, 2020 Euro 6d) vehicles are much lower than the limits for typical environmental and driving conditions [6]. The market share of these vehicles is still low (around 11% of diesel vehicles), as they entered into force in 2017 [28].…”

Section: Discussionsupporting

confidence: 90%

“…The differences between typeapproval and on-road values of vehicles was a big topic a few years ago in the European Union (EU), not only for pollutants emissions [3,4], but also for fuel consumption and CO 2 [5]. The situation significantly improved with the assessment of the vehicles on the road [6]. As outlined in the European Green Deal, a 90% cut in emissions by 2050 is planned, delivered by a smart, competitive, safe, accessible, and affordable transport system.…”

Section: Introductionmentioning

confidence: 99%

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Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

et al. 2021

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In the last years, the in-use emissions of vehicles are measured on the road with portable emissions measurement systems (PEMS). PEMS cannot measure as accurately as the laboratory grade equipment, and studies on their measurement uncertainty have continued since their appearance in the market. In this study we compared PEMS to laboratory grade equipment in Italian laboratories testing a diesel “Golden” (i.e., reference) vehicle for two consecutive years. The results showed equal means of PEMS and laboratory grade equipment for carbon dioxide (CO2), nitrogen oxides (NOx), and particle number (PN), with a variability of ±5 g/km for CO2, ±10 mg/km for NOx, and ±1 × 1011 p/km for PN, which further decreased in the second year. For carbon monoxide (CO), the PEMS were on average 5–20 mg/km higher than the bags (variability ±40 mg/km). The main conclusion of this study is that PEMS are accurate under controlled laboratory ambient conditions, without any indications of significant bias.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

et al. 2021

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“…35 They have recently been considered to have become one of the main sources of pollutants on Euro 6d-TEMP cars. 36 Hence, using cold-start emission factors in urban air quality models may be more representative of the real contribution of the passenger car sector in cities. Using the time condition to define cold-start (300 seconds) described in the RDE regulation, our cold-start period was ∼2–3 km for most of the tests performed (see Table S2 of the ESI†).…”

Section: Resultsmentioning

confidence: 99%

On-road emissions of Euro 6d-TEMP passenger cars on Alpine routes during the winter period

Suarez-Bertoa

Valverde

Pavlovic

et al. 2021

Environ. Sci.: Atmos.

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“…Finally, combining challenging situations in one trip (still within the boundaries of the regulation), e.g., cold start, low ambient temperatures [80], use of auxiliaries [81], dynamic driving [80,82], and regeneration [83], could result in very high emissions (per distance), and future vehicles will have to be appropriately calibrated.…”

Section: Euro 7/viimentioning

confidence: 99%

Overview of Vehicle Exhaust Particle Number Regulations

et al. 2021

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Vehicle emissions are a significant source of air pollution in cities. Particulate matter (PM) is a pollutant with adverse health effects. Regulations worldwide determine the PM exhaust emissions of vehicles by gravimetric quantification of the mass deposited on a filter over a test cycle. The introduction of particulate filters as vehicle exhaust gas aftertreatment devices led to low PM emissions. A particle number methodology (counting solid particles >23 nm), complementary to the PM mass measurement, was developed by the PMP (Particle Measurement Programme) group of the GRPE (Working Party on Pollution and Energy) of the UNECE (United Nations Economic Commission for Europe) during the first decade of the 21st century. The methodology was then introduced in the EU (European Union) regulations for light-duty (2011), heavy-duty (2013), and non-road mobile machinery (2019). In parallel, during the last 15 years, UN (United Nations) regulations and GTRs (Global Technical Regulations) including this methodology were also developed. To address the on-road emissions, the EU introduced RDE (real-driving emissions) testing with PEMS (portable emissions measurement systems) in 2017. Other countries (e.g., China, India) have also started adopting the number methodology. The PMP group recently improved the current laboratory and on-board methodologies and also extended them to a lower particle size (counting solid particles >10 nm). Due to the rapid evolution of the vehicle exhaust particle number regulations and the lack of a summary in the literature, this paper gives an overview of current and near future regulations. Emphasis is given on the technical specifications and the changes that have taken place over the years.

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On-Road Emissions of Euro 6d-TEMP Vehicles: Consequences of the Entry into Force of the RDE Regulation in Europe

Cited by 25 publications

References 18 publications

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

On-road emissions of Euro 6d-TEMP passenger cars on Alpine routes during the winter period

Overview of Vehicle Exhaust Particle Number Regulations

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