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    Wyświetlanie 1-12 z 12
    Tytuł:
    Determination of the deviation of the on-board computer in the vehicle when determining the average fuel consumption
    Autorzy:
    Loman, Michal
    Šarkan, Branislav
    Powiązania:
    https://bibliotekanauki.pl/articles/1838343.pdf
    Data publikacji:
    2021
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    fuel consumption
    vehicle
    onboard computer
    service station
    measurement uncertainty
    Opis:
    Fuel consumption measurement itself is a demanding process and it is difficult to determine the exact consumption of a vehicle. Fuel consumption can be determined in various ways. One way to determine consumption is through driving tests. We know several types of driving tests. Nowadays, most vehicles and all new vehicles can provide a wealth of data to the driver directly during vehicle operation. One of them is the data on the consumption of the vehicle also through the on-board computer located in the vehicle. The information provided to the driver may not reflect reality. In most cases, they are inaccurate and do not correspond to reality. Therefore, the subject of the research will be to verify the accuracy of the provided data on vehicle consumption by the on-board computer. The aim of the research will be to determine the extent to which consumption data are true. Vehicle consumption, as well as measurements are performed on one vehicle in every day traffic. This will ensure that it is possible to compare the measured data with each other.
    Źródło:
    Archiwum Motoryzacji; 2021, 91, 1; 25-35
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The importance of hybrid vehicles in urban traffic in terms of environmental impact
    Autorzy:
    Šarkan, Branislav
    Gnap, Jozef
    Kiktová, Monika
    Powiązania:
    https://bibliotekanauki.pl/articles/263223.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    hybrid vehicles
    emission
    carbon dioxide
    carbon monoxide
    Opis:
    Many large cities in Europe are currently trying to reduce the amount of harmful substances for the residents. Road transport is also an important source of air pollution. One way to reduce pollutant production is to operate more environmentally friendly vehicles. The paper analyses data obtained during practical tests of a hybrid vehicle in urban traffic. The individual components of the exhaust gases are calculated in g/km and they are compared with the values for conventional vehicle propulsion. The data was obtained through a commercially available exhaust gas analyzer and a calculated amount of emissions produced from available data from the engine control unit. The results shown that using of this type of propulsion has its importance in cities with increased air pollution. During urban operation, the hybrid-powered vehicle was powered by an electric engine up to 67.70% (75.40% of the time). As a result of operating such a vehicle in the city, emissions of CO2, HC and NOx are significantly lower.
    Źródło:
    Archiwum Motoryzacji; 2019, 85, 3; 115-122
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the impact of tractor field works on changes in selected elements of engine oils
    Ocena wpływu wykonywanych prac polowych ciągników rolniczych na zmiany wybranych pierwiastków w olejach silnikowych
    Autorzy:
    Gołębiowski, Wojciech
    Zając, Grzegorz
    Sarkan, Branislav
    Powiązania:
    https://bibliotekanauki.pl/articles/2204293.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    engine oil
    degradation
    farm tractor
    agricultural machine
    operation wear
    olej silnikowy
    degradacja
    ciągnik rolniczy
    maszyna rolnicza
    zużycie eksploatacyjne
    Opis:
    Tractors are used for various types of field work, as well as for transport on public roads, in difficult and changing environmental conditions. The main goal of the study was to analyze the changes of trace elements in engine oil during various field works. For this purpose, engine oils from two tractors were selected for the study. These tractors were coupled with: a cultivator, a reversible plow, a tillage-sowing unit, and a trailer. The samples were taken at the beginning and after the field work with a given unit was completed. The instrumental chemical analysis method HDXRF was used to determine changes in the content of the trace elements: Cr, Cu, Fe, Pb, Ni, Ca, P, Zn, and Mo in the engine oil. The comparison of oil from tractors coupled with various agricultural machines allowed the conclusion that the distribution of the consumption of tested metals, as well as the concentrations of individual elements, differed significantly depending on the coupled machine. The research showed that agricultural treatments with a cultivator caused the highest percentage of wear-induced changes in the content of metal elements such as Cr, Cu, and Pb. On the other hand, the operation of a tractor coupled with a tillage-sowing unit resulted in the vehicle's accelerated wear.
    Ciągniki w zależności od potrzeb wykorzystywane są do różnego rodzaju prac polowych, jak i do transportu po drogach publicznych, przy czym użytkowanie to odbywa się w trudnych i zmiennych warunkach środowiskowych. Podstawowym celem pracy była analiza zmian pierwiastków śladowych w oleju silnikowym podczas wykonywania różnych prac polowych. Do badań zostały wytypowany oleje silnikowe pochodzące z dwóch ciągników. Ciągniki te były zagregowane z: kultywatorem, pługiem obrotowym, zestawem uprawowo-siewnym oraz przyczepą rolniczą. Próbki pobierane były w momencie rozpoczęcia oraz po zakończeniu pracy z daną maszyną. Do określenia zmian zawartości pierwiastków śladowych Cr, Cu, Fe, Pb, Ni, Ca, P, Zn, Mo w oleju silnikowym zastosowano instrumentalną metodę analizy chemicznej HDXRF. Porównanie olejów pochodzących z ciągników zagregowanych z różnymi maszynami rolniczymi pozwoliła stwierdzić, że rozkłady zużycia badanych metali wraz ze stężeniami poszczególnych pierwiastków różniły się znacznie między badanymi maszynami. Na podstawie badań wykazano, że praca polowa z wykorzystaniem kultywatora powodowała największe procentowe zmiany zawartości pierwiastków pochodzących z procesów zużycia takich jak Cr, Cu i Pb, natomiast praca ciągnika z zagregowanym zestawem uprawowo-siewnym największe procentowe zmiany zawartości Fe i Ni.
    Źródło:
    Agricultural Engineering; 2022, 26, 1; 1--12
    2083-1587
    Pojawia się w:
    Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of places with deteriorated air quality in city of Žilina in relation to road transport
    Autorzy:
    Šarkan, Branislav
    Loman, Michal
    Harantová, Veronika
    Powiązania:
    https://bibliotekanauki.pl/articles/24200879.pdf
    Data publikacji:
    2023
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    emissions
    air quality
    vehicles
    particulate matter
    carbon monoxide
    Opis:
    The aim of the research is to identify places with deteriorated air quality in the selected city. After an analytical analysis of the data, it is possible to propose steps that can be used to actively contribute to the reduction of air pollution, especially due to road traffic. Places where deteriorated air quality was identified were identified on the basis of practical measurements. Given that the measurement route was designed in a built-up area of the city with a large number of pedestrians, the research was primarily focused on the identification of particulate matters (PM) and the concentration of carbon monoxide CO. The measurements were performed repeatedly on a pre-defined route. The measurements were carried out repeatedly during the morning rush hour when traffic was congested on the roads. Based on the processing and evaluation of the measurements, the sections where increased values of individual emissions were recorded were determined. In this way, it is possible to precisely identify places where air quality deteriorates. The research conclusions provide support for planning the optimization of air quality management policies towards the creation of sustainable cities. The research results present the possibilities of identifying problematic sections from the point of view of emissions production. Critical places with regard to the production of emissions can be connected to places where a permanently increased movement of vehicles is observed.
    Źródło:
    Archiwum Motoryzacji; 2023, 102, 4; 68--90
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Change of drivers reaction time depending on the amount of alcohol consumed by the driver - the case study
    Autorzy:
    Vrabel, Jan
    Sarkan, Branislav
    Vashisth, Amit
    Powiązania:
    https://bibliotekanauki.pl/articles/263277.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    alcohol consumption
    driver´s reaction time
    stopping distance
    driver´s attention
    Opis:
    Each driver should drive according to the actual road traffic rules of the country in which he is currently located. The law systems of various states of Europe allow an increased maximal blood alcohol level of driver. As the fact that no small number of road accidents is caused because of the influence of alcohol on the driver, it is necessary to focus the attention of the society on this issue. The paper deals with the influence of alcohol on the reaction time of the driver. The effect of alcohol on driver behaviour has been studied. The reaction time of several drivers from a selected group of people was measured. At first (before alcohol drinking) the physical and mental condition of the drivers was assessed, using a series of question. Subsequently, the measurements were carried out with a sober driver. After this initial measurement the driver began to drink alcohol and after 20 minutes the level of alcohol in driver´s breath was determined by certificated equipment. It followed by starting the vehicle at a speed of approximately 50 km/h and stopping the vehicle in front of the simulated barrier. During the tests of the stopping distance, the mean fully developed deceleration was explored as the supporting variables. As the most important variable was the driver´s reaction time. It was researched by using of the video-analysing from two synchronized cameras. One camera was placed on the windscreen to monitor the situation in front of the vehicle, the other one monitored the movement of the driver´s feet. The aim of this paper is to focus on the fact that there is a dependence between the amount of consumed alcohol and the driver´s reaction time, which significantly affects the road safety. The reaction time of the driver directly influences to the stopping distance thus it is resolute for stopping the vehicle before a barrier.
    Źródło:
    Archiwum Motoryzacji; 2020, 87, 1; 47-56
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on low-emission vehicle powered by LPG using innovative hardware and software
    Autorzy:
    Małek, Arkadiusz
    Caban, Jacek
    Šarkan, Branislav
    Powiązania:
    https://bibliotekanauki.pl/articles/263411.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    hardware
    software
    on-board diagnostics
    alternative fuels
    LPG
    on-road testing
    Opis:
    LPG is a cheap and ecological fuel for spark ignition engines. The sequential gas injection system can be installed at the factory and is then the Original Equipment of the Manufacturer. A vehicle with a spark ignition engine can also be converted to gas in an authorized workshop. In both cases, the vehicle must meet the same exhaust emission standards when running on alternative fuel as it does with the original fuel. Conversion of vehicles to LPG and CNG is regulated by law at the European Union level. The article describes the conversion of a low-emission gasoline vehicle that meets the Euro 6 emission standard to LPG. The configuration and calibration of the LPG system is described in detail. The compatibility of the gas system with the vehicle's on-board diagnostic system was then checked. Finally, road tests of the vehicle were carried out to compare the performance with the original fuel and the alternative fuel.
    Źródło:
    Archiwum Motoryzacji; 2020, 89, 3; 19-36
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of driving schools training on fatal traffic accidents in the Slovak Republic
    Autorzy:
    Hudec, Juraj
    Šarkan, Branislav
    Caban, Jacek
    Stopka, Ondrej
    Powiązania:
    https://bibliotekanauki.pl/articles/2116407.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    road transport
    road safety
    accident rates
    driver
    experience
    transport drogowy
    bezpieczeństwo drogowe
    wskaźnik wypadków
    kierowca
    doświadczenie
    Opis:
    This paper deals with fatal traffic accidents in the period 2017-2019, caused by drivers who have held driving licenses for less than five years. Specifically, it examines an interconnection between these accidents and the driving schools being completed by these drivers. Furthermore, it analyses whether the perpetrators of traffic accidents with short driving experience are graduates of the same driving schools, and thus, whether the occurrence of serious traffic accidents is directly related to the quality of training in specific driving schools.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 110; 45--57
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of significant factors on assessing the technical conditions of vehicles at technical inspection stations
    Autorzy:
    Sarkan, Branislav
    Hudec, Juraj
    Semanova, Stefania
    Kiktova, Monika
    Djoric, Vladimir
    Powiązania:
    https://bibliotekanauki.pl/articles/262989.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    road transport
    road safety
    technical inspection
    technical inspection station
    unroadworthy vehicle
    Opis:
    The paper analyses the assessment of the technical condition of vehicles at technical inspection stations in the Slovak Republic in the period of 2007-2019. There are described the legislative conditions for assessment of the technical condition of vehicles at technical inspections stations in the Slovak Republic. Data from technical inspections and defects within all technical inspection stations was recorded in the nationwide information system. These data was used as base for the next analysis. This paper also describes the possibilities for detection of deficiencies at technical inspection stations, and in the final part the impact of expert supervision on the operation of the selected technical inspection stations was analysed. The paper also examines significant factors affecting the assessment of the technical condition of vehicles at technical inspection stations in the Slovak Republic. The first factor represents legislative measures introducing more sophisticated technical means to control technical inspection stations, and the second factor is technical supervision by supervisory authorities over technical inspection stations.
    Źródło:
    Archiwum Motoryzacji; 2020, 87, 1; 33-46
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Change in engine power in the event of electronic components failures
    Autorzy:
    Šarkan, Branislav
    Loman, Michal
    Senko, Šimon
    Richtář, Michal
    Gołębiowski, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/2200797.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    engine power
    vehicle
    electronic component
    failure
    engine control unit
    Opis:
    In a conventional internal combustion engine, only electrical controls are used to prepare the fuel mixture. All parts must operate flawlessly in order for the vehicle and its components to operate correctly. Road safety may be negatively impacted by the failure of specific components. The purpose of the study was to ascertain how much the malfunction of particular electrical components affects how the vehicle operates. The vehicle’s individual electronic parts were removed, and the engine power was then assessed. The primary determinant of a vehicle’s technical condition is thought to be its engine power. The preparation of the combustion mixture was affected by the individual component disconnections, which reduced the vehicle’s performance. A vehicle with an in-line four-cylinder engine was used for the experiment, which was conducted in a lab setting. This vehicle’s eight components were gradually disengaged. The change in engine power was observed while they were disconnected. The measured values were always evaluated in terms of an automobile that had no defects and was in excellent condition. The study’s findings demonstrate that there are circumstances in which a vehicle’s usual operation is adversely affected when one or more of its electrical components malfunctions.
    Źródło:
    Archiwum Motoryzacji; 2022, 98, 4; 40--55
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of roadside technical inspections on transport and logistics systems in the Slovak Republic
    Autorzy:
    Hudec, Juraj
    Šarkan, Branislav
    Cződörová, Renáta
    Caban, Jacek
    Droździel, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/2203865.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    control systems
    road traffic safety
    road transport
    vehicle technical condition
    systemy kontroli
    bezpieczeństwo ruchu drogowego
    transport drogowy
    stan techniczny pojazdu
    Opis:
    Road transport safety, apart from environmental protection, is one of the most important tasks for the contemporary world. Annually, about 50 million people are injured in road accidents around the world, of which nearly 1.5 million die as a result. Transport safety consists of many activities and includes various initiatives, including legal changes, training, preventive actions, building safe road infrastructure, and the production of safe vehicles and control systems. This article deals with the issue of performing roadside technical inspections in the Slovak Republic. Specifically, it analyses the results of these oadside technical inspections in individual counties of the Slovak Republic and examines their possible impact on transport and logistics systems in these counties. The correlation analysis showed that the number of checks under the technical roadside inspections is weakly related to the number of logistics centres, but the number of such inspections is moderate in relation to the number of failed vehicles (correlation coefficient = 0.44079). In addition, due to the age of the vehicles, the number of serious and dangerous faults found on them during maintenance inspection increases.
    Źródło:
    Transport Problems; 2022, 17, 3; 61--73
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Statistical Analyses of Selected Maintenance Parameters of Vehicles of Road Transport Companies
    Autorzy:
    Caban, Jacek
    Droździel, Paweł
    Krzywonos, Leszek
    Rybicka, Iwona
    Šarkan, Branislav
    Vrábel, Ján
    Powiązania:
    https://bibliotekanauki.pl/articles/102396.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    car maintenance
    fleet
    road transport
    statistical analyses
    utrzymanie samochodu
    flota
    transport drogowy
    analizy statystyczne
    Opis:
    The article presents the methods for preliminary statistical analyses of selected maintenance parameters of vehicles in road transport companies. The methodology was illustrated by presenting the results pertaining to the calculations of the maintenance intensity as well as the cost of parts and repairs of cars in the Lublin Regional Branch of the Polish Post Logistics Centre. These results provided comparative material useful in the evaluation of the maintenance efficiency of various road transport systems.
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 1; 1-13
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Internal combustion engine diagnostics using statistically processed Wiebe function
    Autorzy:
    Famfulik, Jan
    Richtar, Michal
    Smiraus, Jakub
    Muckova, Petra
    Sarkan, Branislav
    Dresler, Pavel
    Powiązania:
    https://bibliotekanauki.pl/articles/2038118.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    automotive engineering
    engine diagnostics
    Wiebe function
    parameters estimation
    statistics
    technical condition
    Opis:
    The aim of the article is to present the concept of an indirect diagnostic method using the assessment of the variability of the amount of released heat (mass fraction burn) and the heat release rate. The Wiebe function for the assessment of variability has been used. The Wiebe function parameters from the course of the high-pressure indication in the cylinder of internal combustion engine using linear regression have been calculated. From a sufficiently large number of measured samples, the upper and lower limits of the Wiebe function parameters have been statistically determined. Lower and upper limits characterize variability of the heat release process not only in terms of quantity but also in terms of heat release rate. The assessment of variability is thus more complicated than using one integral indicator, typically the mean value of amount of the released heat. The procedure enabling a more accurate estimation of heat generation beginning has been shown. For the combustion process variability assessment of the engine, statistical test of relative frequencies has been used.
    Źródło:
    Eksploatacja i Niezawodność; 2021, 23, 3; 505-511
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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