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    Wyświetlanie 1-6 z 6
    Tytuł:
    An analysis of the use of cruise control in a passenger car
    Autorzy:
    Andrzejewski, Maciej
    Merkisz, Jerzy
    Nowak, Mateusz
    Ziółkowski, Andrzej
    Daszkiewicz, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/263054.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    fuel consumption
    cruise control
    speed driving strategy
    Opis:
    Most vehicles are powered by internal combustion engines. Due to the nature of their operation they emit, among others, carbon dioxide which contributes to the greenhouse effect. CO2 production is strictly correlated with fuel consumption. The article presents the results of road tests of a passenger car with a spark-ignition engine meeting the Euro 6 emission norm. The test vehicle was equipped with a classic exhaust gas aftertreatment system – a three-way catalytic converter. The aim of the study was to verify the impact of the cruise control use on the vehicle fuel consumption. The measurements were based on Portable Emission Measurement System type mobile equipment for exhaust emission tests. The tests were carried out in real driving conditions travelling on an express way. Test drives took place on a route with variable topographic profile. Three test drives with different speeds were carried out, but the aim was to obtain an average speed of 130 km/h.
    Źródło:
    Archiwum Motoryzacji; 2020, 89, 3; 37-49
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    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:
    Methods of evaluating the exhaust emissions from driving vehicles
    Autorzy:
    Rymaniak, Łukasz
    Daszkiewicz, Paweł
    Merkisz, Jerzy
    Kamińska, Michalina
    Powiązania:
    https://bibliotekanauki.pl/articles/133931.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    emission gate
    net emission factor
    Real Driving Emissions
    współczynnik emisji spalin
    rzeczywiste emisje z jazdy
    Opis:
    The type approval tests of vehicles with internal combustion engines increasingly include issues regarding the assessment of ecological indicators in real traffic conditions. This is done with the help of specialized equipment from the PEMS (Portable Emissions Measurement Systems) group. This requires not only a series of test procedures, but also assembly of technically advanced equipment along with the proper preparation of the vehicle's exhaust system. Currently, activities are being carried out to develop solutions for non-invasive assessment of ecological indicators from moving vehicles. The article discusses these types of solutions, at the same time indicating their strengths and weaknesses. Also presented are pollutant emission tests in real operating conditions that will be used to develop a modular exhaust emission gateway. The result of the analysis was to indicate the development directions of methods for exhaust emission assessment from vehicles in motion.
    Źródło:
    Combustion Engines; 2019, 58, 4; 286-291
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the operation states of internal combustion engine in the Real Driving Emissions test
    Autorzy:
    Andrych-Zalewska, Monika
    Chłopek, Zdzisław
    Merkisz, Jerzy
    Pielecha, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/2124713.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    combustion engine
    real driving emissions
    engine operation states
    silnik spalinowy
    emisje spalin
    stan pracy silnika
    Opis:
    Internal combustion engines represent the largest share of motor vehicle propulsion types. Despite the introduction of alternative drives (hybrid and electric), combustion engines will continue to be the main factor in the development of transport. Therefore, work related to their technological development and reduction of their harmful effects on human health and the environment is required. The development of internal combustion engines can be seen in two directions: technological changes resulting in increased efficiency of such engines and the second direction connected with limitation of exhaust gas emission. The present work is included in the second direction of research interests and concerns the analysis of various operating conditions of internal combustion engines. The operating states, both static and dynamic, determine the operational properties of internal combustion engines, such as fuel and energy consumption as well as pollutant emissions. Sofar, such operating conditions have only been mapped on a chassis dynamometer in various homologation tests. The course of the type approval test was known and the conditions of measurement were also known, which made it impossible to introduce a random factor into such tests. Currently, these properties are determined in tests performed in real vehicle operating conditions – RDE (Real Driving Emissions). Such tests are representing real operating conditions of motor vehicles. Limitations for performing tests in real traffic conditions are, apart from formal requirements concerning the duration and distance of individual parts, the dynamic conditions of vehicles determined by the speed and acceleration of the vehicle. The study analyzed the properties of vehicle speed processes and engine operating states in the RDE test, taking into account its individual phases – driving in urban, rural and motorway conditions. Engine operation states are the processes of the engine rotational speed and its relative torque. It was found that the dynamic properties of the vehicle speed process are much more significant than the engine operating states. It was also found that the road emission of pollutants in the RDE test, which is the property of vehicles measured in the test, the motorway phase properties have greatest impact.
    Źródło:
    Archives of Transport; 2022, 61, 1; 71--88
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of the use of comfort devices on the exhaust toxic compounds from a modern PC car with spark ignition engine
    Autorzy:
    Siedlecki, Maciej
    Merkisz, Jerzy
    Dobrzyński, Michał
    Kubiak, Kamil
    Powiązania:
    https://bibliotekanauki.pl/articles/2097654.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    real driving emissions
    RDE
    combustion engine
    comfort devices
    emisja spalin
    rzeczywiste emisje z jazdy
    silnik spalinowy
    urządzenia zwiększające komfort
    Opis:
    The use of comfort systems, the number of which in vehicles is constantly increasing, has a direct impact on fuel consumption and engine load. As part of the article, the vehicle's drive in real operating conditions was analyzed in terms of the emission of toxic compounds. The tests were carried out without and with the systems turned on, using the PEMS apparatus, where road emissions of carbon dioxide, carbon monoxide, hydrocarbons, nitrogen oxides and solid particles were measured in terms of mass, number and size distribution of diameters. The track was driven four times with different setting of the powertrain of examined car. The differences concerned the number of comfort systems in the vehicle and the mode of operation of the combustion engine.
    Źródło:
    Combustion Engines; 2022, 61, 3; 50--55
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of characteristics of pollutant emission from a vehicle engine under traffic conditions in the engine test
    Autorzy:
    Andrych-Zalewska, Monika
    Chłopek, Zdzisław
    Merkisz, Jerzy
    Pielecha, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/2202521.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    combustion engine
    pollutant emission
    driving test
    engine test
    characteristics of pollutant emission
    Monte Carlo method
    silnik spalinowy
    emisja zanieczyszczeń
    test jezdny
    test silnika
    charakterystyki emisji zanieczyszczeń
    metoda Monte Carlo
    Opis:
    The paper describes the method of determination of exhaust emission characteristics from a vehicle engine based on the results obtained in a driving test simulated on an engine dynamometer. These characteristics are the relations between the specific distance emissions and the zero-dimensional characteristics of the process of vehicle velocity: the average velocity value and the average value of the absolute value of the product of vehicle velocity and acceleration. The exhaust emission characteristics are used to simulate the emissions from vehicles operating in different types of traffic conditions. The engine operating states in the engine dynamometer tests were determined by the operating conditions of the vehicle during the test. The authors applied the Monte Carlo method in order to determine the characteristics of different values of the zero-dimensional characteristics of the vehicle velocity process. This enabled the determination of the characteristics based on the test results from a single realization of the process of vehicle velocity. Additionally, the developed method allowed a replacement of the empirical research on the chassis dynamometer with the one performed on the engine dynamometer. The obtained exhaust emission characteristics are in line with the characteristics obtained on the chassis dynamometer in multiple tests.
    Źródło:
    Combustion Engines; 2022, 61, 4; 58--65
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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