On-road testing and characterization of the exhaust emissions of light-duty vehicles

Merkisz, Jerzy; Pielecha, Jacek; Gis, W.

doi:10.2495/sdp090411

Cited by 8 publications

(3 citation statements)

References 3 publications

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“…Although the RDE test is performed under real traffic conditions, it is highly formalized. The requirements concern not only the vehicle conditioning for the test but also the provision of research conditions [1,12,14,[20][21][22][23].…”

Section: Rde Test Conditionsmentioning

confidence: 99%

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Kurtyka¹,

Pielecha²

2020

Combustion Engines

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The implementation of the 3rd package of the RDE test procedure has extended the test method by considering emissions from a cold start period into the total exhaust emissions from a vehicle. The article presents the research results of exhaust emissions of a vehicle equipped with a gasoline engine. The tests were carried out at two different ambient temperatures, in line with the requirements of the RDE test procedure for passenger cars, meeting the Euro 6d-Temp emissions standard. The obtained results were analyzed, i.e. there were compared the engine and vehicle operating parameters and the values of road exhaust emissions during the cold start at two different ambient temperatures. The summary presents the shares of the cold start phase for each exhaust emission compound in the urban part of the test and the entire RDE test, depending on the ambient temperature (8ºC and 25ºC).

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Section: Rde Test Conditionsmentioning

confidence: 99%

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Kurtyka¹,

Pielecha²

2020

Combustion Engines

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“…The fundamental advantage of such tests is the coverage of all actual conditions of operation and aspects of a combustion engine, which is hardly reproducible under laboratory conditions during tests performed on engine test beds. When analyzing the literature, we need to stress the RDE tests are performed for a variety of vehicle categories (on-road vehicles [3][4][5][6][7][8], non-road vehicles [9][10][11][12][13][14] or aircraft [15][16][17]. In the said works, particular attention was drawn to several aspects such as the research methodology, exhaust emissions level and engine operating parameters.…”

Section: Introductionmentioning

confidence: 99%

Exhaust emissions from small engines in handheld devices

et al. 2017

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Abstract. The paper presents the results of investigations on the exhaust emissions carried out under real operating conditions of gasoline engines operating in a power generator and a chainsaw. During the operation of these devices the authors measured the following exhaust emissions: CO, HC, NO x and CO 2 . For the measurements the authors used a portable exhaust emission analyzer SEMTECH DS by SENSORS. This analyzer measures the concentrations of the exhaust gas components in an on-line mode while the engine is running under real operating conditions (road, field etc.). The exhaust emissions tests of non-road engine applications are performed on engine test beds in the NRSC (ISO 8178) and NRTC tests. The presented method is a new solution in determining of the exhaust emissions from such engines. The obtained results were compared with the applicable emission requirements. Besides, based on the performed investigations, the authors attempted an evaluation of the possibilities of the use of the measurement method for development works related to the reduction of the emission from small gasoline engines.

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“…Therefore, in design work mathematical modeling is employed. Currently, advanced models allow testing of other structural parameters on the PRC under different engine operating conditions [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Analysis of design parameters of pistons and piston rings of a combustion engine

Koszałka

Suchecki

2017

MATEC Web Conf.

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Abstract. This paper analyzes the effect of gaps in the lock of the first and second sealing rings and selected dimensions of the ring belt of the piston on the piston-ring-cylinder seal. The research was performed using a mathematical model of the seal system. Simulation results have shown that a significant reduction in the exhaust gas flow to the crankcase -without compromising other parameters characterizing the performance of the seal -would require increased production rigor. Reducing the blow-by without the need to narrow the tolerance intervals of the engine components is possible, but this would be accompanied by increased reverse gas flow from the inter-ring space towards the combustion chamber. The research has also shown that the ring seal of the automotive compression ignition engine, which was the starting point for testing, was optimized for minimizing gas flow towards the combustion chamber at the expense of increased flow of exhaust gases to the crankcase.

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On-road testing and characterization of the exhaust emissions of light-duty vehicles

Cited by 8 publications

References 3 publications

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Exhaust emissions from small engines in handheld devices

Analysis of design parameters of pistons and piston rings of a combustion engine

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