Wyniki wyszukiwania - BazTech

1

Laboratory and on-road characterization of exhaust emissions from plug-in hybrid vehicles at multiple battery states of charge conditions

Woodburn Joseph, Bielaczyc Piotr, Merkisz Jerzy, Pielecha Jacek

Transport Problems

|

2023

|

T. 18, z. 4

99--112

EN

This paper discusses emissions from plug-in hybrid vehicles under various driving scenarios and reports experimental data obtained under laboratory and real-world conditions. Two European plug-in hybrid passenger cars were tested using the two test types in use in the EU (chassis dynamometer and on-road), with some modifications. The best-case and near-worst-case battery states of charge were used for testing. Behavior in terms of CO2 emissions, regulated emissions, and unregulated emissions was characterized and analyzed. Differences were generally much greater for on-road testing, especially for urban driving, during which the potential for purely electrical propulsion of the vehicle is greatest. The long distances covered by current EU legislative test procedures limit the impacts of some effects. Regardless of the traction battery’s state of charge, regulated emissions were well below the applicable EU limits under all driving conditions - for example, combined emissions of reactive nitrogen compounds (nitrogen oxides, ammonia, and nitrous oxide) were consistently < 10 mg/km when tested under laboratory conditions. The two vehicles tested showed that the state of the battery had a large impact on the proportion of electrical propulsion and the resulting CO2 emissions, but differences in regulated pollutants decrease with increasing distance and are generally relatively limited for longer journeys, which include non-urban driving.

2

World-wide trends in powertrain system development in light of emissions legislation, fuels, lubricants, and test methods

Bielaczyc Piotr, Woodburn Joseph, Joshi Ameya

Combustion Engines

|

2021

|

R. 60, nr 1

57--71

EN

Both the light- and heavy-duty sectors of the automotive industry are currently under unprecedented pressure from a wide range of factors, particularly in terms of environmental performance and fuel consumption. Test procedures have undergone massive changes and continue to evolve, meaning that standards are becoming much harder to meet, especially in Europe but also in other continents. Such developments force changes in testing methodology, the development of powertrains themselves and their aftertreatment systems and strategies and calibrations. This paper reports and summarises the topics of the PTNSS Congress and attempts a synthesis on the current status of the field of LD ad HD IC engines, hybrid powertrains and electric vehicles, engine fuel and oil and what the coming years may hold for the automotive and fuel industries and other allied fields.

3

Trendy rozwojowe układów napędowych samochodów osobowych

Bielaczyc Piotr

Przegląd Techniczny : Gazeta Inżynierska

|

2019

|

nr 16-17

26--31

PL

Przemysł motoryzacyjny (sektory pojazdów osobowych – LDV i ciężarowych – HDV) znajduje się obecnie pod bezprecedensową presją ze strony wielu czynników politycznych i społecznych, szczególnie pod względem negatywnego wpływu na środowisko naturalne poprzez emisje związków szkodliwych spalin i emisję gazów cieplarnianych, szczególnie CO 2 /zużycie paliwa. Zmieniające się w ostatnich latach metody badań homologacyjnych i procedury testowe oraz limity emisji związków szkodliwych stają się coraz trudniejsze do spełnienia, co wymaga zmian w metodach badawczo-rozwojowych, konstrukcjach silników spalinowych, strategiach sterowania, paliwach i – co najważniejsze – konstrukcjach całych układów napędowych. W niniejszym artykule przeanalizowano obecną sytuację w zakresie rozwoju legislacji dotyczącą regulacji metod badania pojazdów i limitów emisji związków szkodliwych spalin oraz ich wpływu na układy napędowe stosowane w nowych pojazdach samochodowych na świecie, przedstawiono również skrótowo trendy rozwojowe w tej dziedzinie na przyszłe lata.

EN

The automotive industry (LDV and HDV sectors) is currently under unprecedented pressure from a wide range of factors particularly in terms of environmental performance and fuel consumption. Long-established test procedures are changing and standards are becoming much harder to meet, necessitating changes in R&D methods, strategies and calibrations, fuels and – crucially – powertrains. This paper examines the current situation regarding regulation of emissions rules and the impact on powertrains used in new vehicles across the world. Powertrain technologies which can help to overcome challenges are mentioned and key trends are analysed. Finally, some brief comments are offered on what will bring the next few years.

4

Exhaust emission testing methods - BOSMAL’s legislative and development emission testing laboratories

Bielaczyc Piotr, Klimkiewicz Dariusz, Woodburn Joseph, Szczotka Andrzej

Combustion Engines

|

2019

|

R. 58, nr 3

88--98

EN

The latest legislation regarding the reduction of harmful exhaust emissions, greenhouse gases and fuel consumption determines not only maximum permissible emissions factors, but also emissions testing methods and laboratory design and additionally leads to the development of new research methods. BOSMAL has risen to meet these challenges by investing in an updated, state-of-the-art emissions testing laboratory, housed within a climate chamber and in parallel investing in a completely new laboratory designed with incoming and future legislative requirements in mind. This paper presents BOSMAL’s improved M1/N1 vehicular emissions and fuel consumption laboratory in a climatic chamber and BOSMAL’s standard chamber for the testing of vehicles in accordance with European Union, US and Japanese standards. The specifications, capabilities and design features of the sampling, analysis and development research possibilities and climate simulation systems are presented and discussed in relation to the increasing drive for cleaner, light duty road vehicles (including hybrids and electric vehicles). The recently-renovated laboratory with extended standard temperature range and the laboratory with climatic chamber are described in the context of the newest European Union legislation on the emission in the range of Euro 6d testing requirements. The laboratories permit BOSMAL’s engineers to compete in the international automotive arena in the development of new, more ecologically friendly and increasingly fuel efficient vehicles.

5

Development of RDE/ISC test methodology in light of Euro 6d/VI emissions limits

Pajdowski Piotr, Woodburn Joseph, Bielaczyc Piotr, Puchałka Bartosz

Combustion Engines

|

2019

|

R. 58, nr 3

274--282

EN

This paper discusses the fact that vehicle and powertrain test methods have long been guided by type approval requirements - with a focus ot the recent/current example of real driving emissions (RDE) and in-service conformity (ISC) test requirements. The implications - current and future - of these testing requirement, which force the use of portable emissions measurement system (PEMS) are discussed. In this context, BOSMAL Automotive Research and Development Institute’s PEMS systems are presented, and the systems’ attributes and versatility are explored. Considerations for testing a very wide range of vehicle, engine and fuel types are mentioned. Non-legislative applications of PEMS systems are briefly explored; finally, it is shown that the emissions laboratory and its chassis dyno remain indispensable when conducting work on light duty exhaust emissions, even in the era of RDE.

6

Wpływ regulacji hamowni podwoziowej na wyniki emisji związków szkodliwych spalin

Szczotka Andrzej, Puchałka Bartosz, Bielaczyc Piotr, Adamiak Borys

Autobusy : technika, eksploatacja, systemy transportowe

|

2019

|

R. 20, nr 6

280--285

PL

Pomiary emisji związków szkodliwych spalin podczas testów na hamowni podwoziowej są jednymi z najistotniejszych i najbardziej skomplikowanych badań, jakim są poddawane pojazdy napędzane silnikami spalinowymi. Podczas pomiarów emisji spalin należy zwracać baczną uwagę na wiele czynników, wpływających na prawidłowość otrzymywanych wyników. W artykule omówiony został wpływ regulacji hamowni podwoziowej wykorzystywanej do wykonywania pomiarów emisji związków szkodliwych spalin oraz zużycia paliwa.

EN

Exhaust emission measurements on the chassis dynamometer are one of the most important and most complex tests which are performed on vehicles powered by combustion engines. Many factors must be under control during exhaust emission measurements, which have an influence on correctness of the obtained results. In this paper, the impact of the chassis dynamometer regulation on the exhaust emission results is analysed.