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Wyszukujesz frazę "HEV vehicle" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Akumulatory litowo-jonowe stosowane w przemyśle motoryzacyjnym
The applications of lithium-ion batteries in automotive industry
Autorzy:
Knura, R.
Pacek, J.
Powiązania:
https://bibliotekanauki.pl/articles/171772.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
Li-ion
materiały elektrodowe
samochód hybrydowy
samochód elektryczny
electrode materials
hybrid electric vehicle
HEV
battery electric vehicle
BEV
Opis:
Due to limited resources of fossil fuels and overproduction of greenhouse gases, a need for alternative means for vehicle communication appeared. Because of that hybrid electric vehicles, as well as battery electric vehicles, were proposed to replace some of conventional vehicles based on internal combustion engine [3]. To their advantages over conventional cars belong environmental friendliness and better performance (in case of hybrid electric vehicles), but they also suffer from greater purchase costs and limited range (in case of most battery electric vehicles) [4, 6]. Presented work briefly characterizes four types of vehicles equipped with electric motor (mild hybrid, full hybrid, plug-in hybrid and battery electric vehicles) along with generalised presentation of their battery requirements [4, 6]. Further in this work, the lithium-ion (Li-ion) battery working principle was explained, along with characterisation of its limitations due to its design and requirements for inactive components e.g. 4-fold drop in specific capacity and energy density while moving from pure electrode material level to battery level [20]. Next, present Li-ion active components, such as LiCoO2, LiMnO2 and LiFePO4 cathodes and graphite anode along with their capacities and energy densities as well as other characteristic regarding (e.g. environmental friendliness, safety and cost) are shown. Moreover electrode materials e.g. nanocomposite anodes and cathodes, multi-electron cathodes (e.g. Li2MnSiO4), as well as Li-metal and Li4Ti5O12 anodes, with their advantages and disadvantages were described [15, 20]. Presented article was summarized by gathered opinions of battery electric vehicles users, who share their experience regarding their electric cars in a survey. One can tell that they are fairly satisfied with their purchase and that improvement in range of battery electric vehicles along with predictable government policy regarding electrification of cars are the most important factors when considering purchase of electric vehicle [36].
Źródło:
Wiadomości Chemiczne; 2018, 72, 3-4; 185-205
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of driving pattern on pollutant emission and fuel consumption of hybrid electric vehicle
Autorzy:
Lasocki, Jakub
Gis, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/133837.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid electric vehicle
HEV
pollutant emission
fuel consumption
driving patterns
hybrydowy pojazd elektryczny
emisja zanieczyszczeń
zużycie paliwa
wzorzec jazdy
Opis:
Hybrid electric vehicles (HEVs) have an increasing presence in passenger transport segment. They have been designed to minimize energy consumption and pollutant emission. However, the actual performance of HEVs depends on the dynamic conditions in which they are used, and vehicle speed is one of the key factors. A lot of excess emission and fuel consumption can be attributed to rapid changes of vehicle speed, i.e. accelerations and decelerations. On the other hand, dynamic driving favours energy recovery during braking. This study examines the relationship between HEVs speed, pollutant emission and fuel consumption. The considerations were based on the results of testing vehicles in WLTC and NEDC driving cycles, performed on a chassis dynamometer. The test objects were two light-duty passenger vehicles, one with series-parallel, gasoline-electric hybrid system and the other, used as a reference, with conventional spark-ignition engine. Both vehicles had similar technical parameters and combustion engines supplied with gasoline. The driving cycles were divided into several parts according to the speed range. For each part, pollutant emission and fuel consumption were determined and appropriate values of selected parameters of driving pattern were calculated. Combining the results of empirical research and calculated parameters allowed to obtain characteristics. Their analysis provided valuable insight into the impact of driving pattern on actual emission and fuel consumption of HEV.
Źródło:
Combustion Engines; 2019, 58, 2; 145-150
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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