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    Wyświetlanie 1-4 z 4
    Tytuł:
    Technological developments in vehicles with electric drive
    Autorzy:
    Szumska, Emilia M.
    Jurecki, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/24202469.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    electric drive
    electric vehicle
    plug-in hybrid vehicle
    hybrid electric vehicle
    napęd elektryczny
    pojazd elektryczny
    pojazd hybrydowy typu plug-in
    hybrydowy pojazd elektryczny
    Opis:
    The fleet of electric vehicles is systematically growing. Many passenger car manufacturers are already reporting that after 2030, vehicles equipped with electric propulsion will account for half of the models produced. Vehicles equipped with an electric drive include: battery-powered electric vehicles, hybrid electric vehicles and fuel cell electric vehicles. Over the years, these vehicles have undergone constant change. The aim of this paper was to review trends in the development of pure electric vehicles and plug-in hybrid vehicles.
    Źródło:
    Combustion Engines; 2023, 62, 3; 38--47
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary driving style classification of the professional drivers
    Autorzy:
    Szumska, Emilia M.
    Stańczyk, Tomasz Lech
    Powiązania:
    https://bibliotekanauki.pl/articles/2200796.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    driver behaviour
    urban bus
    acceleration
    professional driver
    driving style
    Opis:
    Driving style and driver behaviour are important in evaluating city bus drivers. Buses are one of the means of public transportation in cities, used by millions of people. The purpose of this study was to present a model for preliminary classification of driving style of the professional drivers based on averaged maximum values of lateral and longitudinal acceleration recorded during regular work. First, the recorded acceleration values of 69 city bus drivers were analysed. Then, the correlation between the acceleration values and the age and experience of the city bus drivers was examined. Based on the results of the preliminary classification of drivers, extreme values for both lateral acceleration and longitudinal acceleration (deceleration and acceleration) were obtained by 3 drivers out of the 69 tested. The study also examined the relationship between averaged values of maximum lateral and longitudinal acceleration and driver age and experience. Based on the correlation results, showed that age and the number of years of holding a driver’s license are not significantly related to acceleration. Therefore, the method can be used to analyse drivers regardless of their age and experience.
    Źródło:
    Archiwum Motoryzacji; 2022, 98, 4; 25--39
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Total Cost of Ownership analysis and energy efficiency of electric, hybrid and conventional urban buses
    Autorzy:
    Szumska, Emilia M.
    Pawełczyk, Marek
    Jurecki, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/2057980.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    public transport
    electric bus
    Total Cost of Ownership
    Opis:
    From an economic perspective, the purchase cost of an electric bus is greater than that of a conventional one. This results from the additional components of the bus drivetrain and the costly charging infrastructure. However, it should be noted that electric bus ensures greener and more sustainable public transport. The presented study focuses on the economic and energy efficiency analysis of city buses with different types of driving system evaluated for selected urban and suburban routes. The routes differ in terms of the number of journeys per day, elevation, the daily distance travelled, and the daily operating time. The results demonstrate that driving conditions can affect economic efficiency. The Total Cost of Ownership (TCO) method used in the study shows that electric buses represent the highest TCO values among the vehicles taken into account. However, for the TCO calculated for electric and hybrid buses, fuel (energy) costs have a much lower share than for the TCO of conventional buses.
    Źródło:
    Eksploatacja i Niezawodność; 2022, 24, 1; 7--14
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The analysis of energy recovered by an electric vehicle during selected braking manoeuvres
    Autorzy:
    Szumska, Emilia M.
    Adriana, Skuza
    Jurecki, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/2200809.pdf
    Data publikacji:
    2023
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    regenerative braking
    regenerative energy
    electric vehicle
    vehicle testing
    Opis:
    Electrical vehicles have the ability to partially recover some kinetic energy during braking. Kinetic energy is transformed into electric energy, which is fed to the battery by the control system and stored there for further use. The aim of this paper was to analyse the levels of energy recovered by an electric vehicle during braking at various speeds and with different braking intensities. The first phase of testing consisted of vehicle braking tests in real-life conditions. The registered speed profiles were then used as input data for the simulation software. The authors have also analysed the effect of the state of charge of the battery and of the vehicle’s load on the amount of energy recovered during braking. The performed simulation tests demonstrated that the level of recovered energy is significantly affected by the initial braking speed and by the force of pressure applied to the brake pedal. The amount of recovered energy is less affected by the state of charge (SOC) of the battery and by the vehicle’s load. Energy regeneration during braking is currently an important research topic. The efficiency of an electric vehicle depends on the range, which can be extended thanks to the additional energy recovered during braking maneuvers. The presented preliminary simulation results are intended to assess the level of energy recovery in electric vehicles. The authors are aware that a full, comprehensive analysis requires additional research using electric vehicles that will verify the results presented in the paper.
    Źródło:
    Archiwum Motoryzacji; 2023, 99, 1; 18--29
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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