Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "electric efficiency" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-9 z 9
    Tytuł:
    “Interactive Power Devices for Efficiency in Automotive with Increased Reliability and Safety” – the European Project Concerning the Main Automotive and Transport Application Domains
    Autorzy:
    Kadlec, J.
    Kuchta, R.
    Novotny, R.
    Hajduga, A.
    Sekrecki, M.
    Roszczyk, P.
    Dybowski, J.
    Kalbarczyk, J.
    Zieliński, W.
    Bańbura, P.
    Burliński, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/263013.pdf
    Data publikacji:
    2015
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    electric vehicle
    NAND flash memory
    reliability
    EV powertrain
    electric drive efficiency
    pojazd elektryczny
    pamięć flash NAND
    niezawodność
    napęd
    napęd elektryczny
    efektywność
    Opis:
    The overall objective of the IDEAS project is to develop advanced packaging for power supply components and new generation memory systems applicable to Electric and ICE propelled vehicles, with paying attention to considering also the aspects that have not been addressed yet in the running ENIAC and ARTEMIS Automotive projects. A major challenge related to electronic devices in the automotive applications is the reliability of power supply systems which must be capable to assure the functionality of subsystems in all operating conditions, inclusive of ageing. The control systems, which rely on multicore microcontrollers and complex software architectures, require increasingly stringent constraints from the memory devices which need to be designed for very high bandwidth, speed and reliability. In the following thesis, a few aspects of the IDEAS project will be presented: a review of important factors that affect the reliability and life-cycle endurance of NAND flash memories, multispeed gear application in electric drives and its influence on the energy efficiency. The problem of electromagnetic compatibility of electronic devices will also be dealt with in the paper
    Źródło:
    Archiwum Motoryzacji; 2015, 69, 3; 31-64
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of the regenerative braking process efficiency in electric vehicles
    Autorzy:
    Kropiwnicki, Jacek
    Gawłas, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2204620.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    electric vehicle
    urban conditions
    regenerative braking
    energetic efficiency
    Opis:
    In electric and hybrid vehicles, it is possible to recover energy from the braking process and reuse it to drive the vehicle using the batteries installed on-board. In the conditions of city traffic, the energy dissipated in the braking process constitutes a very large share of the total resistance to vehicle motion. Efficient use of the energy from the braking process enables a significant reduction of fuel and electricity consumption for hybrid and electric vehicles, respectively. This document presents an original method used to estimate the efficiency of the regenerative braking process for real traffic conditions. In the method, the potential amount of energy available in the braking process was determined on the basis of recorded real traffic conditions of the analysed vehicle. The balance of energy entering and leaving the battery was determined using the on-board electric energy flow recorder. Based on the adopted model of the drive system, the efficiency of the regenerative braking process was determined. The paper presents the results of road tests of three electric vehicles, operated in the same traffic conditions, for whom the regenerative braking efficiency was determined in accordance with the proposed model. During the identi-fication of the operating conditions of the vehicles, a global positioning system (GPS) measuring system supported by the original method of phenomenological signal correction was used to reduce the error of the measured vehicle’s altitude. In the paper, the efficiency of the re-cuperation process was defined as the ratio of the accumulated energy to the energy available from the braking process and determined for the registered route of the tested vehicle. The obtained results allowed to determine the efficiency of the recuperation process for real traffic conditions. They show that the recuperation system efficiency achieves relatively low values for vehicle No. 1, just 21%, while the highest value was achieved for vehicle No. 3, 77%. Distribution of the results can be directly related to the power of electric motors and battery capacities of the analysed vehicles.
    Źródło:
    Acta Mechanica et Automatica; 2023, 17, 2; 303--310
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Light two-wheeled electric vehicle energy balance investigation using chassis dynamometer
    Autorzy:
    Racewicz, Szymon
    Kazimierczuk, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1837923.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    electric vehicle
    energy balance
    chassis dynamometer
    drive system efficiency
    Opis:
    The article presents the methodology for light two-wheeled electric vehicle energy balance investigation using MAHA LPS 3000 chassis dynamometer. For this purpose, the laboratory tests, as well as the road tests, have been performed on the self-constructed light two-wheeled electric vehicle equipped with the 3 kW BLDC motor and the 100.8 V battery pack. The road test data have been used to set up the dynamometer parameters in order to simulate the real road drive taking into account, among others, the rolling resistances and the air drag coefficient. The overall energy consumption for the laboratory tests and the road conditions’ tests have been then compared for different vehicle speeds. In addition, based on the power and the torque characteristics measured on the MAHA chassis dynamometer, the efficiency of the vehicle electric drive system and the efficiency of the battery charging process have been calculated.
    Źródło:
    Acta Mechanica et Automatica; 2020, 14, 4; 175-179
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transformer performance enhancement by optimized charging strategy for electric vehicles
    Autorzy:
    Venkataswamy, R.
    Uma Rao, K.
    Meena, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2042802.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    charging stations
    electric vehicle
    e-mobility
    optimization
    transformer efficiency
    transformer regulation
    Opis:
    Transformer efficiency and regulation, are to be maintained at maximum and minimum respectively by optimal loading, control, and compensation. Charging of electric vehicles at random charging stations will result in uncertain loading on the distribution transformer. The efficiency reduces and regulation increases as a consequence of this loading. In this work, a novel optimization strategy is proposed to map electric vehicles to a charging station, that is optimal with respect to the physical distance, traveling time, charging cost, the effect on transformer efficiency and regulation. Consumer and utility factors are considered for mapping electric vehicles to charging stations. An Internet of Things platform is used to fetch the dynamic location of electric vehicles. The dynamic locations are fed to a binary optimization problem to find an optimal routing table that maps electric vehicles to a charging station. A comparative study is carried out, with and without optimization, to validate the proposed methodology.
    Źródło:
    Archives of Electrical Engineering; 2022, 71, 1; 37-56
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative assessment of energy efficiency indicators of a multi-fuel internal combustion vehicle and an electric vehicle
    Ocena porównawcza wskaźników efektywności energetycznej wielopaliwowego pojazdu spalinowego i pojazdu elektrycznego
    Autorzy:
    Lewicki, Wojciech
    Gołębiewski, Wawrzyniec
    Osipowicz, Tomasz
    Abramek, Karol Franciszek
    Oleh, Klyus
    Powiązania:
    https://bibliotekanauki.pl/articles/38955556.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Warszawska, Wydział Transportu
    Tematy:
    power unit
    alternative fuels
    electric vehicle
    energy efficiency
    jednostka napędowa
    paliwa alternatywne
    pojazd elektryczny
    efektywność energetyczna
    Opis:
    In the current discussions on the future of the automotive industry, two extreme opinions clash: electromobility or vehicles with conventional drive but powered by alternative fuels. The article discusses the issue related to modeling the energy efficiency factors of a combustion engine operating on three types of fuels (Diesel 100%, Biofuel 100%, and Hemp Oil 100%) as well as an electric drive powered by energy from a coal power plant. Analytical research was conducted based on the external characteristics of the engine's performance. The external characteristic of the Fiat Panda 1.3 JTD combustion engine was obtained on the Automex dynamometer. The engine operated on three fuels: Diesel 100%, Biofuel 100% (rapeseed), and Biofuel 100% (hemp oil). The Nissan Leaf vehicle manufacturer provided the external characteristics of the electric engine. The calculation results showed that the combustion engine consumes less energy at lower speeds than the electric one. At higher speeds, the consumption rates are at a similar level. The recipients of the research are both the demand side – that is, vehicle users, as well as future manufacturers and government institutions responsible for shaping and developing future mobility in the field of individual transport.
    W toczących się obecnie dyskusjach na temat przyszłości motoryzacji ścierają się dwie skrajne opinie: elektromobilność lub pojazdy z konwencjonalnym napędem, ale zasilane paliwami alternatywnymi. W artykule omówiono zagadnienie związane z modelowaniem współczynników efektywności energetycznej silnika spalinowego zasilanego trzema rodzajami paliw (olej napędowy 100%, biopaliwo 100% i olej konopny 100%) oraz napędu elektrycznego zasilanego energią z elektrowni węglowej. Badania analityczne przeprowadzono w oparciu o zewnętrzną charakterystykę pracy silnika. Charakterystykę zewnętrzną silnika spalinowego Fiat Panda 1.3 JTD uzyskano na hamowni Automex. Silnik pracował na trzech paliwach: olej napędowy 100%, biopaliwo 100% (rzepak) oraz biopaliwo 100% (olej konopny). Zewnętrzna charakterystyka silnika elektrycznego została dostarczona przez producenta pojazdu Nissan Leaf. Wyniki obliczeń wykazały, że przy niższych prędkościach silnik spalinowy zużywa mniej energii niż silnik elektryczny. Przy wyższych prędkościach wskaźniki zużycia są na podobnym poziomie. Odbiorcami badań jest zarówno strona popytowa - czyli użytkownicy pojazdów, jak i przyszli producenci oraz instytucje rządowe odpowiedzialne za kształtowanie i rozwój przyszłej mobilności w zakresie transportu indywidualnego.
    Źródło:
    WUT Journal of Transportation Engineering; 2023, 137; 73-85
    1230-9265
    Pojawia się w:
    WUT Journal of Transportation Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical analysis of the efficiency of a V2G wireless charger for electric vehicles
    Autorzy:
    Triviño, Alicia
    Gonzalez-Gonzalez, Jose M.
    Aguado, Jose A.
    Powiązania:
    https://bibliotekanauki.pl/articles/136256.pdf
    Data publikacji:
    2019
    Wydawca:
    EEEIC International Barbara Leonowicz Szabłowska
    Tematy:
    V2G
    wireless discharge
    losses
    efficiency
    electric vehicle
    inductively-coupled power system
    ICPT
    bidirectional
    wireless charging
    Opis:
    V2G (Vehicle-to-grid) technology will report important benefits for the operation and safety of the grid. In order to facilitate the expansion of the V2G technology in a future, it is recommended to offer the drivers with easy to use methods to charge and discharge their EV batteries. In this sense, wireless chargers are expected to play a relevant role in the future electrical networks as it reduces the users intervention. The development of this kind of system is still open to improve them in terms of their operation, their compliance and their control. An important issue for the evaluation of these systems is the efficiency, which measures the power losses occurring in the system. This paper addresses a deep study about the losses in a bidirectional wireless charger. Then, it provides with a mathematical model to characterize them. This model is validated by means of experimental results conducted in a 3.7-kW prototype.
    Źródło:
    Transactions on Environment and Electrical Engineering; 2019, 3, 1; 9-14
    2450-5730
    Pojawia się w:
    Transactions on Environment and Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A New Method for an Electric Vehicle Wireless Charging System Using LCC
    Autorzy:
    Khademi, Hamid Reza
    Moghaddam, Mahmoud Samiei
    Baygi, Seyed Javad Mohammadi
    Hajizadeh, Amin
    Powiązania:
    https://bibliotekanauki.pl/articles/102202.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    power transfer system
    electric vehicle
    output power
    efficiency
    optimization
    układ przeniesienia mocy
    pojazd elektryczny
    moc wyjściowa
    sprawność
    optymalizacja
    Opis:
    Nowadays, there is a need for charging electric vehicles (EVs) wirelessly, since it provides a more convenient, reliable, and safer charging option for the EV customers. A wireless charging system using a double-sided LCC compensation topology is proven to be highly efficient; however, the large volume induced by the compensation coils is a drawback. Endocrine links are more useful in transmitting power wirelessly than other links. These links are used in the transmission of low and medium power. In this paper, by analyzing the equivalent circuit of a WPT power transmission system, the optimal value of the inductance was formulated to increase the yield. This can have other applications. In order to neutralize the reactive losses, the series resonance is used in both in primary and secondary sections, among which the lower quantities of series inductors were selected from the initial values to increase the efficiency and power. Furthermore, it is possible to optimize these values using suitable optimization methods. In this study, the PSO algorithm was used for this purpose.
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 3; 98-112
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of the range extender for a 48 V electric vehicle
    Autorzy:
    Noga, Marcin
    Gorczyca, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/133579.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    electric vehicle
    range extender
    spark ignition engine
    overall efficiency
    three-way catalyst
    pojazd elektryczny
    silnik o zapłonie iskrowym
    sprawność ogólna
    katalizator trójdrożny
    Opis:
    The article deals with the concept, development and results of preliminary tests of a range extender for an electric light commercial vehicle Melex with a 48 V electrical system. The purpose of the project is to build a prototype of the range extender powered by an internal combustion engine that will increase the range of the vehicle with electric drive, and at the same time will be characterized by a high efficiency and low exhaust emissions. The developed range extender is a combination of a 163cc single-cylinder combustion engine with a generator joined through a ribbed belt transmission. The 3-phase generator from a heavy-duty vehicle was used. In order to match the output voltage of the generator to the system voltage of the electric vehicle, an external adjustable regulator and a rectifier bridge with an increased operating voltage were used. The range extender was attached to a body of the electric vehicle by means of a welded frame made of thin-walled steel profiles. Initial tests of the developed range extender showed its proper interaction with both the lead-acid battery of the vehicle as well as with the nickel-metal hydride battery (NiMH) adapted to 48 V voltage from a hybrid electric vehicle. A maximum output power exceeding 2 kW was obtained. Maximum value of the overall efficiency of the range extender reaches up to 18.8%, which is a high value considering the small size of the used engine and the type of generator. The directions for further development of the range extender were also revealed in this paper.
    Źródło:
    Combustion Engines; 2019, 58, 2; 113-121
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Urban electric vehicles: a contemporary business case
    Miejskie pojazdy elektryczne: współczesny przypadek biznesowy
    Autorzy:
    Sadek, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/375236.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    pojazd elektryczny
    pojazd o zerowej emisji spalin
    efektywność energetyczna
    przypadek biznesowy
    pojazd alternatywny
    electric vehicle
    zero emissions vehicle
    energy efficiency
    business case
    alternative vehicle
    Opis:
    In a world where energy supply security and environmental protection are major concerns, the development of green vehicles is becoming a necessity. The Electric vehicle (EV) is one of the most promising technologies that will make the "green dream" come true. This paper is a contemporary business case that encourages the immediate deployment of urban EVs. It proposes a model in which we can profit from the benefits of urban EVs namely, high energy efficiency, emissions reduction, small size and noise reduction. The model mitigates the EV potential limitations such as energy source, charging infrastructure, impact on electrical power system and cost issues. It also provides ideas to overcome the barriers of the technology application in order to speed up their commercialization. This study reveals that having an environmentally friendly vehicle can soon become a reality if our collaborative efforts are properly directed.
    W świecie, w którym zabezpieczenie dostaw energii oraz ochrona środowiska to nasze główne problemy rozwój ekologicznych samochodów staje się koniecznością. Elektryczny Pojazd (EV) jest jedną z najbardziej obiecujących technologii, który sprawi, że "ekologiczny sen" się spełni. Niniejsza praca to współczesne studium przypadku biznesowego, który zachęca do natychmiastowego rozwijania miejskich samochodów elektrycznych EV. Oferuje on model, w którym można w pełni czerpać z korzyści miejskich samochodów elektrycznych EV a mianowicie z ich wydajności elektrycznej, redukcji emisji zanieczyszczeń, małych rozmiarów pojazdu oraz redukcji hałasu. Model ten łagodzi potencjalne ograniczenia dla EV, takie jak: źródła energii, zmiany infrastruktury, wpływ na system energii elektrycznej oraz kwestie finansowe. Dostarcza także pomysłów jak pokonać bariery technologicznych zastosowań celem przyspieszenia jego komercjalizacji. Badania dowodzą, że posiadanie pojazdu przyjaznego środowisku może wkrótce stać się rzeczywistością, jeśli nasze wspólne wysiłki zostaną prawidłowo ukierunkowane.
    Źródło:
    Transport Problems; 2012, 7, 2; 117-129
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies