Particle Number Emission from Vehicles of Various Drives in the RDE Tests

Pielecha, Jacek; Skobiej, Kinga; Gis, Maciej; Gis, W.

doi:10.3390/en15176471

Cited by 9 publications

(6 citation statements)

References 22 publications

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“…To improve the emissions and fuel consumption that occur when driving under road conditions, a new WLTP (World Harmonised Light Duty Procedure) driving test procedure was created [52]. With the new procedure, in addition to the determination of emissions during controlled driving tests with a chassis dynamometer, real driving emission (RDE) road tests are also carried out using mobile emission measurement systems -PEMS (Portable Emissions Measurement System) [53,54,55].…”

Section: Main Components Of Vehicle Exhaustmentioning

confidence: 99%

Vehicle Emission Models and Traffic Simulators: A Review

Mądziel¹

2023

Preprint

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Accurate estimation of vehicle emissions is essential and can be helpful in the decision-making process. Thanks to calculation methods, it is possible to accurately estimate the emissions that result from driving a car and to determine their impact on, for example, the health of pedestrians who are on the pavement near an arterial road. Recent years have seen an increase in the use and importance of emission models, as well as vehicle traffic simulation models. Increasingly, emission models are being combined with traffic simulation models, as it is not practical to actually measure the on-road emissions of an entire fleet of vehicles over a given stretch of road. This paper provides an overview of the selected work on the topic of emission modelling and vehicle traffic simulation models. The models are distinguished according to their respective scales of accuracy, i.e., micro, meso, and macro. Selected work combining emission and traffic simulation models is also presented, as well as development trends in the field. In particular, the paper also highlights the fact of proper calibration of vehicle traffic simulation models in order to obtain the most reliable vehicle emissions results from computational models. The review of the works carried out may be helpful for future projects concerning the use of simulation tools for transport and environmental decision-makers in the area of arterial roads.

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Section: Main Components Of Vehicle Exhaustmentioning

confidence: 99%

Vehicle Emission Models and Traffic Simulators: A Review

Mądziel¹

2023

Preprint

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“…During the heating of individual components and fluids, significant amounts of pollutants, such as nitrogen oxides, carbon monoxide, solid particles, and hydrocarbons, are emitted [173,174]. For example, in the study of Giechaskiel et al [175], CO, HC, and NO x emissions are higher for temperatures below 5 • C compared to tests conducted at 23 • C according to the WLTP.…”

Section: Cold Start and Weather Conditionsmentioning

confidence: 99%

“…The heating period of individual vehicle systems depends on weather conditions. Low temperatures extend and intensify the cold-start effect [173].…”

Section: Cold Start and Weather Conditionsmentioning

confidence: 99%

Emissions from Light-Duty Vehicles—From Statistics to Emission Regulations and Vehicle Testing in the European Union

Pacura,

Szramowiat-Sala,

Gołaś

2023

Energies

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The article offers a comprehensive examination of vehicle emissions, with a specific focus on the European Union’s automotive industry. Its main goal is to provide an in-depth analysis of the factors influencing the emission of microcontaminants from light-duty vehicles and the challenges associated with their removal via exhaust aftertreatment systems. It presents statistical insights into the automotive sector and explores the relationships between vehicle categories, fuel types, and the emission of regulated and nonregulated pollutants, as well as relevant legal regulations such as the European Emission Standard. The article delves into the characteristics of vehicle exhaust, compares exhaust-gas aftertreatment systems, and introduces factors affecting emissions from gasoline engines, including downsizing, fuel composition, and engine operating parameters. It also considers the impact of driving style, start–stop systems, and related factors. Concluding, the article offers an overview of vehicle-testing procedures, including emission tests on dynamometer chassis and real driving emissions. With the growing global vehicle population and international environmental regulations, a focus on solid particles containing microcontaminants is paramount, as they pose significant risks to health and the environment. In summary, this article provides valuable insights into vehicle emissions, significantly contributing to our understanding of this crucial environmental issue.

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“…In [13], the authors stated that for motor vehicles after a combustion-engine cold-start, the characteristic feature is the increased concentration of the number of particles with a diameter of about 100 nm. The tests carried out in real driving conditions confirmed that the exhaust emissions of particles with diameters smaller than 23 nm were significant in conventional vehicles, regardless of the engine type (petrol or diesel).…”

Section: Exhaust Emission Tests-state Of Knowledgementioning

confidence: 99%

Comparison of Gasoline Engine Exhaust Emissions of a Passenger Car through the WLTC and RDE Type Approval Tests

et al. 2022

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The article presents a comparison of exhaust emission test results from a passenger car with a spark-ignition engine examined with the WLTC (Worldwide Harmonized Light-Duty Vehicles Test Cycle) test, which was carried out on a chassis dynamometer, and examined with a RDE (Real Driving Emissions) test, which was conducted in real vehicle operating conditions. The exhaust emissions and the emitted particle number in the individual phases of both tests were determined. Large disparities were found in the results of the two tests. The cold start-up had a particularly significant impact on the test results in the case of the WLTC test. This impact is much greater than in the RDE test, mainly due to the fact that the RDE test is much longer than the WLTC test. Moreover, the engine load in the RDE test was greater than in the WLTC test. As a result of the conducted analyses, it was postulated that the research should be continued in stochastic conditions for the vehicle speed function, e.g., in the implementation of the speed function determined for the real conditions of the vehicle operation.

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Particle Number Emission from Vehicles of Various Drives in the RDE Tests

Cited by 9 publications

References 22 publications

Vehicle Emission Models and Traffic Simulators: A Review

Vehicle Emission Models and Traffic Simulators: A Review

Emissions from Light-Duty Vehicles—From Statistics to Emission Regulations and Vehicle Testing in the European Union

Comparison of Gasoline Engine Exhaust Emissions of a Passenger Car through the WLTC and RDE Type Approval Tests

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