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Tytuł:
A review of technologies in the area of production, storage and use of hydrogen in the automotive industry
Autorzy:
Małek, Arkadiusz
Karowiec, Marek
Jóźwik, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/24200878.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
hydrogen
electrolyzer
green hydrogen
hydrogen storage
hydrogen fuel cell
fuel
cell
vehicle
Opis:
Presently, we can learn and read more and more about hydrogen in both traditional and social media. The article answers why there is so much interest in hydrogen recently. It has been recognized by European and global decision-makers as a very promising medium necessary to carry out the climate and energy transformation. The advantages of hydrogen as a fuel and as a medium for storing large amounts of energy over a longer period of time is also presented. In addition, an overview of hydrogen technologies presented at the Hydrogen Technology Expo in Bremen in September 2023 is provided. The state of hydrogen technologies currently available on the market is compared to the latest achievements of scientists described in scientific articles. The aim of the article is to review the technologies available on the market for the production, storage and use of hydrogen as a vehicle fuel. Hydrogen technologies presented at the Hydrogen Expo in Bremen were confronted with the latest scientific achievements described in the latest scientific articles. Thanks to such a confrontation, it is possible to make a rational purchasing decision in the area of selected hydrogen technologies.
Źródło:
Archiwum Motoryzacji; 2023, 102, 4; 41--67
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy efficiency and dynamics during car acceleration
Autorzy:
Graba, Mariusz
Bieniek, Andrzej
Prażnowski, Krzysztof
Hennek, Krystian
Mamala, Jarosław
Burdzik, Rafał
Śmieja, Michał
Powiązania:
https://bibliotekanauki.pl/articles/24200840.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
acceleration
fuel consumption
energy consumption
vehicle dynamics
acceleration dynamic index
Opis:
In this work, the authors focused on analyzing the energy efficiency and dynamics during car acceleration, featuring investigation of acceleration dynamics under various acceleration intensities. The tests were performed in the speed range between 45 km/h and 120 km/h, at a constant gear ratio. This enabled obtaining variable dynamic parameters of the acceleration process, ranging from about 0.1 to 1.4 m/s2, and recording variation in fuel consumption from 6.28 to 27.03 dm3/100km. The study focused on determining the relation between fuel consumption, energy efficiency and vehicle acceleration depending on the available drivetrain power. The relation between fuel consumption and vehicle acceleration was described by using the dynamic index. The proposed dynamic index takes into account the energy (from burned fuel) and vehicle acceleration intensity to obtain an objective metric for characterizing the acceleration process. The aforementioned index takes the form of the passenger car movement energy quality index and can be related to widely known physical properties, thus ensuring its universality. The index expresses the energy expenditure within the time needed to accelerate a vehicle weighing 1kg by a 1m distance. As opposed to other criteria that are applied to the assessment of passenger cars dynamics, the index shows a high determination coefficient R2 in excess of 0.99, and can be used as a universal metric to test other vehicle types.
Źródło:
Eksploatacja i Niezawodność; 2023, 25, 1; art. no. 17
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of alternative drive systems in modern special-purpose rail vehicles
Autorzy:
Gallas, Dawid
Stobnicki, Paweł
Jakuszko, Wojciech
Urbański, Patryk
Kikut, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/38955760.pdf
Data publikacji:
2023
Wydawca:
Politechnika Warszawska, Wydział Transportu
Tematy:
special-purpose vehicle
alternative drive
energy storage
hydrogen fuel
pojazd do zadań specjalnych
napęd alternatywny
magazynowanie energii
paliwa wodorowe
Opis:
In response to the market demand for modern special-purpose rail vehicles, an overview of the rolling stock available on the European and world markets was developed, along with an analysis of the scope of works they performed. The need for new alternative forms of propulsion in line with the development directions, taking into account EU and national environmental goals, was discussed. The paper presents a design of a proprietary modern special-purpose vehicle with an alternative drive. It discusses it compared to other special-purpose vehicles regarding their parameters and the viability of different drive systems, including hydrogen fuel cells.
Źródło:
WUT Journal of Transportation Engineering; 2023, 136; 23-33
1230-9265
Pojawia się w:
WUT Journal of Transportation Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the fuel consumption by a HEV vehicle - a case study
Autorzy:
Lisowski, Maciej
Gołębiewski, Wawrzyniec
Prajwowski, Konrad
Danilecki, Krzysztof
Radwan, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/24202465.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid electric vehicle
fuel consumption
model predictive control
factory control
energy consumption
hybrydowy pojazd elektryczny
zużycie paliwa
sterowanie predykcyjne
kontrola produkcji
zużycie energii
Opis:
The article presents a mathematical model demonstrating the synergy of HEV energetic machines in accordance with the model predictive control. Then the results of road tests are presented. They were based on the factory control of the above-mentioned system. The results of the operating parameters of the system according to the factory control and the results of the operating parameters according to the model predictive control were compared. On their basis, it could be concluded that the model predictive control contributed to changes in the power and electrochemical charge level of the energy storage system from 50.1% (the beginning) to 56.1% (the end of course) and for MPC from 50.1% (the beginning) to 59.9% (the end of the course). The applied MPC with 13 reference trajectories (LQT) of power machines of the series-parallel HEV allowed for fuel savings on the level of 4%.
Źródło:
Combustion Engines; 2023, 62, 2; 71--83
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulating energy management in a lightweight hybrid vehicle with fuel cells and nickel metal hydride (NiMH) batteries
Autorzy:
Harahap, Dedy Ramdhani
Chang, Wei-Chin
Chiu, Chun Chieh
Tang, Jing-Jou
Powiązania:
https://bibliotekanauki.pl/articles/27324351.pdf
Data publikacji:
2023
Wydawca:
Instytut Techniki Górniczej KOMAG
Tematy:
hybrid vehicle
PEM fuel cell
NiMH battery
energy management strategy
zarządzanie energią
strategia
pojazd hybrydowy
Opis:
A compact electric vehicle was simulated utilizing the Advanced Vehicle Simulator (ADVISOR), a MATLAB/Simulink-based program. The primary power source for the vehicle was a 200W small Proton Exchange Membrane (PEM) fuel cell, complemented by AA-type Nickel Metal Hydride (NiMH) batteries serving as backup energy sources. Each NiMH battery had a voltage of 1.2V and a capacity of 1.9Ah. The performance of both the PEM fuel cell and the NiMH batteries was evaluated using an electronic load to meet the power requirements of the hybrid vehicle. The hybrid vehicle operated in three distinct modes: Starting Mode, Accelerating Mode, and Steady Mode, each with its specific configurations. Simulation results revealed that the batteries successfully initiated the drivetrain in the Starting Mode, while the fuel cell provided support during the Accelerating Mode. InSteady Mode, as the battery state of charge decreased, the PEM fuel cell seamlessly supported the battery andpowered the load simultaneously. Various matching schemes were analyzed to meet thedynamic performance requirements of the vehicle and achieve theoptimal synergy between the fuel cell and NiMH battery. The study aimed to identify the most effective configuration to ensure efficient energy management and dynamic performance in different operational modes of the hybrid vehicle.
Źródło:
Mining Machines; 2023, 41, 4; 261--273
2719-3306
Pojawia się w:
Mining Machines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Comprehensive Review of the Quadratic High Gain DC-DC Converter for Fuel Cell Application
Autorzy:
Jayachandran, Divya Navamani
Sathik, Jagabar
Padhi, Tanmay
Kumari, Aditi
Powiązania:
https://bibliotekanauki.pl/articles/2055226.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fuel cell
electric vehicle
quadratic
high gain
SSA
dynamic
Opis:
In the recent times, lot of research work carried out in the field of fuel cells explicitly divulges that it has the potential to be an ultimate power source in upcoming years. The fuel cell has more storing capacity, which enables to use in heavy power applications. In these applications, power conditioning is more vital to regulate the output voltage. Hence, we need a dc-dc converter to provide a constant regulated output voltage for such high-power system. Currently, many new converters were designed and implemented as per the requirement. This paper has made comparative study on several topologies of the quadratic high gain dc-dc converter and the applications where these topologies can be used when the fuel cell is given as a source. Also, we have compared various parameters of all the converters considered and generated the results with steady-state and dynamic study. In this article, we briefed the types of analysis carried on the dc-dc converter to study its performance. Moreover, various application of fuel cell is presented and discussed. This paper will be a handbook to the researchers who start to work on high gain dc-dc converter topologies with quadratic boost converter as a base. This article will also guide the engineers to concentrate on the fuel cell components where it needs to be explored for optimizing its operation.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 2; 299--306
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Research on the Influence of the Composition of the Fuel Mixture on the Operating Parameters of a Single-Cylinder Common Rail Diesel Engine
Autorzy:
Tucki, Karol
Mruk, Remigiusz
Powiązania:
https://bibliotekanauki.pl/articles/2205041.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
vehicle
biofuel
fuel
common rail
Opis:
The article presents the laboratory tests results of the influence of the diesel oil content in a mixture with rapeseed oil on the operating parameters of a diesel engine with the CommonRail fuel supply system. Fuel mixtures with a rapeseed content of 0%, 50%, 70%, 100% were used. The article presents the results of tests carried out for various configurations of the object. The measurements included tests of exhaust gases: the content of carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides as well as specific fuel consumption and exhaust gas temperature. As a result of the research, it was noticed that the use of rapeseed oil causes a significant increase in fuel consumption and an increase in emissions. At a crankshaft speed of 2500 rpm and a torque generated by the engine crankshaft of 12 Nm, the specific fuel consumption for a 0% rapeseed content is 310 g/kWh. For the same engine operating conditions and the same rapeseed content of the fuel, the fuel consumption for 100% rapeseed content is 330 g/kWh. For the same engine operating parameters, analysis of the carbon dioxide content in the exhaust gas yields a value of 7.8x104 ppm for a rapeseed content of 0%. For the same engine operating conditions and for the oilseed rape content in the fuel is 100% 8.4x104 ppm. The mathematical models describing the effects of engine operating parameters and rapeseed oil content in the mixture on the observed values were created with the Scilab program. The degree of agreement of the determined mathematical models was checked by calculating the coefficient of determination (R2). The results are shown in 3D figures.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 5; 100--109
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feasibility study for a fuel cell-powered unmanned aerial vehicle with a 75 kg payload
Autorzy:
Desantes, José M.
Novella, Ricardo
García-Cuevas, Luis M.
Lopez-Juarez, Marcos
Powiązania:
https://bibliotekanauki.pl/articles/36455727.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
Unmanned Aerial Vehicle
fuel cell
hydrogen
optimization
Opis:
Among the possible electric powerplants currently driving low-payload UAVs (up to around 10 kg of payload), batteries offer certain clear benefits, but for medium-payload operation such as aerotaxis and heavy-cargo transportation UAVs, battery capacity requirements restrict their usage due to high weight and volume. In light of this situation, fuel cell (FC) systems (FCS) offer clear benefits over batteries for the medium-payload UAV segment (> 50 kg). Nevertheless, studies regarding the application of FCS powerplants to this UAV segment are limited and the in-flight performance has not been clearly analysed. In order to address this knowledge gap, a feasibility analysis of these particular applications powered by FCS is performed in this study. A validated FC stack model (40 kW of maximum power) was integrated into a balance of plant to conform an FCS. As a novelty, the management of the FCS was optimized to maximize the FCS efficiency at different altitudes up to 12500 ft, so that the operation always implies the lowest H2 consumption regardless of the altitude. In parallel, an UAV numerical model was developed based on the ATLANTE vehicle and characterized by calculating the aerodynamic coefficients through CFD simulations. Then, both models were integrated into a 0D-1D modelling platform together with an energy management strategy optimizer algorithm and a suitable propeller model. With the preliminary results obtained from the FCS and UAV models, it was possible to ascertain the range and endurance of the vehicle. As a result, it was concluded that the combination of both technologies could offer a range over 600 km and an endurance over 5 h. Finally, with the integrated UAV-FCS model, a flight profile describing a medium altitude, medium endurance mission was designed and used to analyse the viability of FC-powered UAV. The results showed how UAVs powered by FCS are viable for the considered aircraft segment, providing competitive values of specific range and endurance.
Źródło:
Transactions on Aerospace Research; 2022, 2 (267); 13-30
0509-6669
2545-2835
Pojawia się w:
Transactions on Aerospace Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zasilanie alternatywne pojazdów samochodowych
Alternative power supply for motor vehicles
Autorzy:
Wornalkiewicz, Władysław
Powiązania:
https://bibliotekanauki.pl/articles/38416998.pdf
Data publikacji:
2022
Wydawca:
Wyższa Szkoła Techniczna w Katowicach
Tematy:
klasyfikacja paliw
paliwo alternatywne
pojazd elektryczny
pojazd hybrydowy
nowa infrastruktura stacji
fuel classification
alternative fuel
electric vehicle
hybrid vehicle
new station infrastructure
Opis:
W obecnych czasach coraz bardziej niepokoi ocieplenie klimatu. Jest ono wynikiem, między innymi, gromadzenia się nadmiernej ilości gazów cieplarnianych, w tym CO2. Z inicjatywy obrońców środowiska powstały w ramach Unii Europejskiej dokumenty, stanowiące wytyczne do obniżania emisji szkodliwych spalin, wydalanych przez masowe ilości pojazdów, poruszających się po drogach Europy i nie tylko. Wytyczne te, przyjęte przez państwa Unii, wskazują na konieczność - w zakresie zasilania pojazdów - na przechodzenie od tradycyjnych paliw kopalnych, na rzecz różnych, mniej szkodliwych dla środowiska kuli ziemskiej. W opracowaniu zaprezentowano tradycyjne paliwa do samochodów, tendencje w zakresie upowszechniania ich mniej toksycznych alternatyw oraz akty normatywne, wskazujące kierunki badań nad ich wdrożeniem. Zwrócono uwagę, na istniejący w Polsce stan w zakresie infrastruktury technicznej do dystrybucji nowych rodzajów paliw. Wymieniono etapy odejścia od tradycyjnej tzw. benzyny, na rzecz przede wszystkim pojazdów hybrydowych i elektrycznych. Zaprezentowana w skrócie problematyka bazuje na opracowanych pod kierunkiem autora, zaimplementowanych fragmentach pracy magisterskiej [18]. Analiza stanu wdrożenia nowych technologii zasilania pojazdów została pokazana na podstawie wywiadu z przedstawicielem ochrony środowiska i ankietyzacji, przeprowadzonej z pracownikami stacji paliw w mieście Tarnowskie Góry i jej okolicach.
Nowadays, concerns about climate warming are becoming more and more intense. This is due to, inter alia, the accumulation of an excessive amount of greenhouse gases, including CO2. The initiative of environmentalists resulted in preparing documents within the European Union, which constitute guidelines for the reduction of harmful exhaust emissions, released by mass quantities of vehicles on the roads of Europe and beyond. In terms of powering vehicles, these guidelines, adopted by the EU countries, specify the need to change from traditional fossil fuels to various, less harmful to the environment, the globe. The paper presents traditional car fuels, trends in the dissemination of their less toxic alternatives and normative acts indicating the directions of research on their implementation. The attention was paid to the state of the art in Poland in terms of technical infrastructure for the distribution of new types of fuels. The stages of resigning from the traditional so-called gasoline for the benefit of hybrid and electric vehicles in particular are specified, as well. The issues presented in short are based on the parts of the master’s thesis prepared under the supervision of the author (Morawiec R., 2022). The analysis of the implementation status of new vehicle power technologies was shown on the basis of an interview with an environmental protection representative and a survey conducted with employees of a petrol station in the city of Tarnowskie Góry and its vicinity.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach; 2022, 15; 21-50
2082-7016
2450-5552
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cooperation of a PEM fuel cell and a NiMH battery at various states of its charge in a FCHEV drive
Autorzy:
Pielecha, Ireneusz
Szwajca, Filip
Powiązania:
https://bibliotekanauki.pl/articles/2038208.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
hybrid drive
fuel cells
energy flow
vehicle drive energy management
Opis:
The development of electromobility is focused on the design and implementation of increasingly more effective electric drives. In such a system, apart from energy recovery, it is not possible to recharge the batteries while driving. Electric vehicles equipped with fuel cells and a battery (FCHEV – fuel cell hybrid electric vehicle) in a parallel configuration boast increased energy transfer capabilities. The article presents an energy flow analysis in a parallel hybrid drive system with fuel cells and a battery. The research was carried out on a 30 W vehicle made in 1:10 scale with a NiMH battery and a fuel cell with a proton exchange membrane (PEM). Increasing driving dynamics causes a 29% increase in energy consumption, 43.6% reduction of energy transfer from a fuel cell and a 23% increase of in the energy share intended for battery charging. Continuous operation of the system in full power mode ensures a much greater efficiency of energy transmission to the drive train (95%) compared to the system operating in dynamic driving conditions – 64–75%.
Źródło:
Eksploatacja i Niezawodność; 2021, 23, 3; 468-475
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Study on the relationship between vehicle maintenance and fuel consumption
Autorzy:
Sakno, Olha
Medvediev, Ievgen
Kolesnikova, Tatiana
Powiązania:
https://bibliotekanauki.pl/articles/2091240.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
driving cycle
vehicle maintenance
technical condition
fuel consumption
technology
iterative approach
cykl jazdy
utrzymanie pojazdu
stan techniczny
zużycie paliwa
technologia
metody iteracyjne
Opis:
A contemporary road vehicle (RV) is a rather complex system, consisting of a large number of subsystems, assemblies, units, and elements (parts). While operating, an RV interacts with the environment, and its elements interact with each other. Consequently, the properties (parameters) of these elements change in the process - hardness, roughness, size, relative position, gapping, etc. A partial solution to the presented problems can be the search for a technique for assessing the RV technical condition by a generalised criterion, which is quite sensitive to changes in the technical state. One of these criteria may be fuel consumption in litres per 100 kilometres. This paper investigates the possibilities of using the fuel consumption indicator as a criterion for assessing the technical condition of the vehicle and the vehicle maintenance and repair technologies have been generalised to obtain a given technical solution. Thus, the possibility of using the fuel consumption indicator as a criterion for assessing the technical condition of the vehicles was explored using the Volkswagen Touran 1.9 TDI operating in urban conditions using a driving cycle. A clear correlation between the fuel consumption and the service lifetime of the vehicle has been established; therefore, it depends on the frequency and quality of the maintenance and repair (MR). The vehicle MR technology has been generalised to obtain a specified technical solution. The process of creating an RV MR Technology model is implemented based on an iterative approach (repetition) with the possibility to specify their features.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 113; 163--172
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conditions for optimizing powertrain performance in a vehicle with an internal combustion engine
Autorzy:
Janulin, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1835548.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
optimization
powertrain
gear ratio
vehicle energy efficiency
fuel consumption
Opis:
The paper presents optimization of the drive system in terms of adapting it to the characteristics of another engine. Powertrain parameters in a vehicle with an internal combustion engine were selected based on the following criteria: fuel consumption, engine dynamics, and emission standards for harmful substances. A light-duty passenger vehicle with gross vehicle weight rating (GVWR) of 3.5 tons was modified by replacing a spark-ignition engine with a diesel engine. The gear ratio in the powertrain had to be modified accordingly to optimize the engine’s performance, enhance engine dynamics, minimize fuel consumption and toxic emissions. The optimization of selected parameters of the vehicle driveline was performed based on the requirements of the standard NEDC and WLTC cycles.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2020, nr 23(4); 291-307
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza preferencji użytkowników samochodów osobowych na lokalnym rynku paliw
The analysis of the preferences of users of vehicles on the local fuel market
Autorzy:
Janisz, Karina
Biel, Justyna
Mikulec, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1115523.pdf
Data publikacji:
2019
Wydawca:
Collegium Witelona Uczelnia Państwowa
Tematy:
pojazd samochodowy
stacje paliw
paliwo
olej napędowy
benzyna
vehicle
petrol stations
fuel, diesel
gasoline
Opis:
In connection with the growing number of motor vehicles on the roads, the demand for fuels and, consequently, for fuel stations is increasing. The research problem presented in this paper includes an analysis of car users' preferences when choosing particular fuels. First, the diagnosis of the fuel station market in the city of Nowy Sacz was made. Next, some research was conducted among the city residents who owned at least one car using a voluntary and anonymous survey on the Internet. The results showed that diesel is the most frequently selected fuel by passenger car users. The inhabitants of Nowy Sacz usually choose stations of large fuel concerns, although they are not attached stations are primarily fuel prices, followed by the location of the station and the quality of fuels. Drivers of passenger cars rarely opt for unconventional fuels, but they would gladly exchange their conventional cars for those powered by biofuels.
Źródło:
Zeszyty Naukowe Państwowej Wyższej Szkoły Zawodowej im. Witelona w Legnicy; 2019, 1, 30; 255-272
1896-8333
Pojawia się w:
Zeszyty Naukowe Państwowej Wyższej Szkoły Zawodowej im. Witelona w Legnicy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy management strategy of dual planetary hybrid electric vehicle based on optimal transmission efficiency
Autorzy:
Wang, Shangxu
Li, Jiaxin
Shi, Dehua
Sun, Xiaoqiang
Yao, Yong
Powiązania:
https://bibliotekanauki.pl/articles/279483.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
power split hybrid electric vehicle
mechanical point
fuzzy torque distribution
fuel economy
Opis:
A power split hybrid electric vehicle with dual planetary gear sets is studied in this paper. Firstly, the power split and circulation phenomenon are further described by analyzing a speed and torque relationship between the engine, motors and the output shaft based on the lever analogy. The transmission efficiency and the electric power ratio are then obtained. The working modes of the hybrid electric vehicle (HEV) are divided according to the system operation mechanism. On this basis, the engine optimal operating line (OOL) control strategy and the mechanical point (MP) control strategy are designed. Furthermore, a fuzzy controller is designed to realize the optimal torque distribution of the engine and the motors in the MP control strategy. Simulation results demonstrate that the MP control strategy can guarantee a higher efficiency of the transmission system, which also shows good performance in improving fuel economy of the HEV by adjusting the engine operating point.
Źródło:
Journal of Theoretical and Applied Mechanics; 2019, 57, 2; 383-396
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 69

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