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    Wyświetlanie 1-9 z 9
    Tytuł:
    Selected remarks about RDE test
    Autorzy:
    Merkisz, J.
    Pielecha, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/133698.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    passenger cars
    real driving tests
    emisja spalin
    samochody osobowe
    Opis:
    New test procedures for determining exhaust emission from passenger vehicles will be introduced in 2017. For several years, the European Commission has been developing new procedures, which aim is to perform tests in road conditions. The purpose is to determine the real values of emissions, which are not always reflected by the level of emissions obtained in the laboratory. Proper and accurate procedures for determining emissions in real traffic conditions (RDE – Real Driving Emission) have not yet been approved (as opposed to Heavy Duty Vehicles for which such conditions already exist), but there are proposals that are currently being analyzed by major research centers in Europe. There are many differences between those proposals such as determining road emission or research methodology related to emission measurement of hydrocarbons. The work compares the results of emissions measured in road tests using the latest legislative proposals related to passenger cars. The results are shown in relation to the used measurement method: classic method of determining exhaust emission; uses all measurement data determining the mass of harmful compounds and distance travelled during the test; method of averaging the measuring windows (MAW – moving average windows), also in the literature called EMROAD method, which determines the measurement windows (on the basis of carbon dioxide emissions from the WLTC test) and on its basis determines the road emission in RDE test; generalized method of instantaneous power (Power Binning), known in the literature as CLEAR – Classification of Emissions from Automobiles in Real driving, determines road emissions on the basis of generalized instantaneous power during the RDE test.
    Źródło:
    Combustion Engines; 2016, 55, 3; 54-61
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The parameters of passenger cars engine in terms of real drive emission test
    Autorzy:
    Merkisz, J.
    Jacyna, M.
    Merkisz-Guranowska, A.
    Pielecha, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/952926.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    exhaust emission
    road tests
    passenger cars
    emisja spalin
    testy drogowe
    samochody osobowe
    Opis:
    This paper presents the preliminary concept research to develop the test used in the measurement of emissions in real traffic conditions for passenger vehicles. Work based on the lack of legal solutions for determining the environmental performance of light vehicles – as opposed to heavy-duty vehicles for which such regulations have specified. The elaboration is to compare the emission test used in clinical approval of passenger cars, while the synthesis of the results obtained under different conditions road tests. The intention is to develop a test for assessing the ecological vehicle in real traffic conditions, where restrictions will only drive type (gasoline engine, diesel engine, hybrid vehicle), which is consistent with the requirements of the certification tests. The result should be the foundation for the development of the test in terms of: the duration, to determine the operating conditions and vehicle and proposals for emission limit values.
    Źródło:
    Archives of Transport; 2014, 32, 4; 43-50
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Koncepcja testu badawczego emisji spalin dla samochodów osobowych w rzeczywistych warunkach ruchu
    Concept test of research exhaust emissions for passenger cars in real traffic conditions
    Autorzy:
    Merkisz, J.
    Molik, P.
    Pielecha, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/133236.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    emisja spalin
    testy drogowe
    samochody osobowe
    exhaust emissions
    road tests
    passenger cars
    Opis:
    W artykule przedstawiono wstępną koncepcję opracowania testu badawczego wykorzystywanego w pomiarach emisji spalin w rzeczywistych warunkach ruchu dla pojazdów osobowych. Podstawą podjęcia pracy był brak rozwiązań prawnych, dotyczących określania poziomu ekologiczności pojazdów lekkich – w przeciwieństwie do pojazdów ciężkich, dla których takie regulacje już określono. Podstawą opracowania będzie porównanie testów emisyjnych wykorzystywanych w badaniach homologacyjnych samochodów osobowych, a jednocześnie synteza wyników uzyskanych w różnych warunkach badań drogowych. Zamierzeniem jest opracowanie testu, umożliwiającego ocenę ekologiczną pojazdu w rzeczywistych warunkach ruchu, gdzie ograniczeniami będzie tylko rodzaj napędu (silnik ZI, ZS, pojazd hybrydowy), co jest zgodne z wymaganiami badań homologacyjnych. Efektem powinny być założenia do opracowania testu pod względem: czasu trwania, określenia warunków pracy silnika i pojazdu oraz propozycji dopuszczalnych wartości emisji spalin.
    This paper presents the preliminary concept research to develop the test used in the measurement of emissions in real traffic conditions for passenger vehicles. Work based on the lack of legal solutions for determining the environmental performance of light vehicles – as opposed to heavy-duty vehicles for which such regulations have specified. The elaboration is to compare the emission test used in clinical approval of passenger cars, while the synthesis of the results obtained under different conditions road tests. The intention is to develop a test for assessing the ecological vehicle in real traffic conditions, where restrictions will only drive type (gasoline engine, diesel engine, hybrid vehicle), which is consistent with the requirements of the certification tests. The result should be the foundation for the development of the test in terms of: the duration, to determine the operating conditions and vehicle and proposals for emission limit values.
    Źródło:
    Combustion Engines; 2013, 52, 3; 332-337
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Propozycja testu RDE dla samochodów osobowych o napędzie hybrydowym
    The proposal of RDE test for passenger cars with hybrid drive
    Autorzy:
    Merkisz, J.
    Pielecha, J.
    Molik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/134180.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    emisja spalin
    testy drogowe
    samochody osobowe
    exhaust emission
    road tests
    passenger cars
    Opis:
    Priorytetem działań Unii Europejskiej na rzecz ochrony środowiska jest ocena emisji zanieczyszczeń w rzeczywistych warunkach ruchu pojazdów. Procedury takiej oceny opracowano dla pojazdów ciężkich i pojazdów pozadrogowych, natomiast brak jest unormować prawnych takiej oceny dla pojazdów lekkich (samochodów osobowych). W związku z tym, w artykule podano propozycję metodyki opracowania testów kontrolnych badań emisji zanieczyszczeń z samochodów osobowych. Do analizy wybrano samochody osobowe o napędzie hybrydowym, gdyż jest to najszybciej rozwijająca się grupa pojazdów o największych walorach ekologicznych, a jednocześnie najmniejszym przebiegowym zużyciu paliwa, spełniająca najnowsze normy emisji spalin. Według autorów koncepcja opracowania testów dla samochodów osobowych powinna opierać się następujących przesłankach: wyznaczeniu spójnego obszaru pracy silnika dla wybranych pojazdów osobowych, w taki sposób, aby w największym stopniu odpowiadał najczęstszym warunkom ruchu oraz określeniu parametrów mierzonych pod-czas testów drogowych i uzyskiwanych wskaźnikach emisji. W artykule przedstawiono procedurę wyznaczenia warunków pracy silników spalinowych, co w efekcie umożliwiło zaproponowanie testu RDE dla samochodów osobowych o napędzie hybrydowym.
    The priority of the European Union operation is protecting the environment by evaluating emissions under real operating conditions. The procedures have been developed for the assessment of heavy vehicles and off-road vehicles, however there is no legal rules for such evaluation for light vehicles (passenger cars). The article contains, proposal for develop a test methodology for control of emissions from passenger cars. Hybrid vehicle was selected for analysis, because it is the fastest growing group of vehicles with the highest ecological value, while the smallest fuel consumption that meets the latest emission standards. The concept of designation of the road test for passenger cars should be based on the following considerations: the appointment of a consistent engine operating range for selected cars, in such a way that the greatest corresponded most frequent in real conditions and the parameters measured during the road test and obtained emission factors. The paper presents a procedure for the designation of the operating conditions of internal combustion engines, which enabled to propose RDE test for hybrid vehicles.
    Źródło:
    Combustion Engines; 2015, 54, 3; 369-375
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cold start emissions of passenger cars with gasoline and diesel engines in Real Driving Emissions tests
    Autorzy:
    Pielecha, Jacek
    Merkisz, Jerzy
    Kurtyka, Karolina
    Skobiej, Kinga
    Powiązania:
    https://bibliotekanauki.pl/articles/133895.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    passenger cars
    Real Driving Emissions
    emisja spalin
    samochody osobowe
    rzeczywiste emisje z jazdy
    Opis:
    Modernization of passenger cars and constant development of existing legislation lead to a reduction of exhaust emissions from these vehicles. In accordance with package 3 of the RDE test procedure, the European Commission has extended testing methods by including exhaust emissions during a cold start. The article compares the research results on the impact of ambient temperature during the cold start of spark-ignition and compression-ignition engines in road emission tests. The tests were carried out 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 operation parameters and the values of road exhaust emissions, during the cold start of gasoline and diesel engines at the ambient temperature of approximately 25°C. The summary presents the share of cold start phase of a passenger car (at the ambient temperature of around 25°C) for each exhaust emission compound in the urban part of the test, and in the entire RDE test, depending on the engine type used.
    Źródło:
    Combustion Engines; 2019, 58, 4; 160-168
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of ecological extremes of vehicles in road emission tests
    Autorzy:
    Pielecha, Jacek
    Skobiej, Kinga
    Powiązania:
    https://bibliotekanauki.pl/articles/1833638.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    exhaust emission
    passenger cars
    real driving emissions
    optimization
    emisja spalin
    samochody osobowe
    badania emisji spalin
    optymalizacja
    Opis:
    New testing procedures for determining road emissions of exhaust pollutants for passenger vehicles were established in 2018. New road testing procedures are designed to determine actual exhaust emissions, which may not always reflect laboratory emissions. Test procedures for the emission of pollutants in real traffic conditions are divided into four stages. The latest research on the emission of pollutants from motor vehicles in road traffic conditions, carried out using mobile measuring systems, reflects the actual ecological state of vehicles. The article compares the results of exhaust emissions obtained in road tests using the latest legislative proposals for passenger cars. Then, an attempt was made to determine the engine operating parameters in which exhaust road emission would be the lowest. Solution scenarios were defined as part of permissible changes to dynamic parameters that are included in European legislation on RDE testing. For this purpose, an optimization tool was used, allowing on the basis of given input data to determine the minimum objective function, defined as the smallest emission value of individual harmful compounds. The results of the exhaust gas emissions in the RDE test were used to determine the road emissions of individual harmful compounds. A thorough analysis of the emission intensity of individual compounds has shown that it is possible to approximate such values using functional rela-tionships or adopting them as a constant value. This division was used to determine the extremes (in this case the minima) of the objective function (minimum road emissions of harmful exhaust components). This task resulted in obtaining (within the permissible tolerances of all driving parameters and durations of individual road test sections) the value of exhaust emissions in the range from 26% to 81% lower than in the actual road test. This means that there is a tolerance range, where you can obtain the value of emissions in road tests. As a result, you can use the process of determining the minimum emissions tests RDE calibration of the drive units already at the stage of preparation so that in the real traffic conditions characterized by the lowest exhaust emissions.
    Źródło:
    Archives of Transport; 2020, 56, 4; 33-46
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of vehicle dynamic parameters on the exhaust emissions in RDE tests
    Autorzy:
    Pielecha, J.
    Kurtyka, K.
    Skobiej, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/133633.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    passenger cars
    road tests
    Real Driving Emissions
    emisja spalin
    samochody osobowe
    testy drogowe
    rzeczywiste warunki emisji
    Opis:
    The article compares driving test data using the latest legislative proposals applicable to passenger cars with different drives. For this purpose, cars of one type were selected, meeting the same exhaust toxicity standard (Euro 6c) and differing in used internal combustion engines (with spark-ignition, compression-ignition and hybrid drive). Several measurements were performed on the same test route in accordance with the RDE test guidelines, which requires a several of criteria to be met. These criteria include the length of the measuring sections, their overall timeshare and the dynamic characteristics of the drive. A portable emissions measurement system (PEMS) was used to record the engine and vehicle operating parameters and to measure the exhaust emissions during tests. This allowed for the monitoring of parameters such as: load value, engine speed and vehicle velocity. Then the obtained results were analyzed for their compatibility with the RDE procedure requirements. By determining the road emission of individual harmful compounds for all vehicles and the dynamic parameters of drive (relative positive acceleration and product of speed and positive acceleration) in various phases of the road test it was possible to compare them. On this basis, the impact of dynamic conditions of road tests on the obtained results of the road exhaust emission of harmful compounds for passenger cars with various drives was defined.
    Źródło:
    Combustion Engines; 2018, 57, 4; 26-34
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Observations from PEMS testing of combustion engines of different applications
    Autorzy:
    Merkisz, J.
    Pielecha, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/133975.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    passenger cars
    road tests
    Real Driving Emissions
    emisja spalin
    samochody osobowe
    testy drogowe
    rzeczywista emisja cząstek
    Opis:
    The article compares data obtained in road tests with the latest legislative proposals relating to various applications of internal combustion engines. Passenger car emission tests have been performed several times on the same test route in accordance with the RDE procedure guidelines, for which a dozen or so criteria must be met, including the distance of each of the drive sections, their in the drive time and the dynamic characteristics of the drive. The analysis was also based on a two-dimensional operating density characterization, presented in the vehicle speed-acceleration coordinates. As a result, it was possible to compare dynamic properties, operating time density and, thus, to check the validity of conducted drive tests in terms of their feasibility and emission values. An exhaust emission related comparison of three types of powertrain have been presented: gasoline, diesel and hybrid in the RDE tests. The authors proposed a new form of presenting the road exhaust emissions results in relation to the carbon dioxide emission, referred to as a standardization of the emission results. The exhaust emissions from city buses fitted with different powertrains tested on an actual bus route and in the SORT test were also compared.
    Źródło:
    Combustion Engines; 2018, 57, 3; 40-55
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Passenger cars and heavy duty vehicles exhaust emissions under real driving conditions
    Autorzy:
    Merkisz-Guranowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/223645.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    passenger cars
    heavy duty vehicles
    exhaust emissions
    vehicle testing
    real driving emissions
    samochody osobowe
    pojazdy ciężarowe
    emisja spalin
    badania pojazdu
    warunki jazdy
    Opis:
    In the assumptions regarding to the transport policy both at the level of country and Europe there is the concept of sustainable development of transport. Warsaw University of Technology in cooperation with Poznan University of Technology performs research work concerning the shaping of environmentally friendly transport system – Project EMITRANSYS. In this project, one of the conditions is to reduce exhaust emissions by means of transport. The paper presents the reasons for the testing of the exhaust emissions under Real Driving Emissions testing (RDE). Research potential of Institute of Combustion Engines and Transport at Poznan University of Technology in the area of road testing of passenger and heavy-duty vehicles has been presented in the paper. Example test results have been shown in the aspect of the emission-related classification of vehicles.
    Źródło:
    Archives of Transport; 2014, 31, 3; 47-59
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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