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Wyszukujesz frazę "electric motor" wg kryterium: Wszystkie pola


Wyświetlanie 1-8 z 8
Tytuł:
Selected characteristics of the electric propulsion system of aircraft as found out from the ground-based laboratory tests
Autorzy:
Jakielaszek, Z.
Nowakowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/242946.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electric motor
physical parameters of the air
efficiency and power of electric motor
Opis:
The paper is a discussion on ground-based laboratory tests of the aircraft’s electric propulsion system. The tests were intended to find relationships between environmental conditions and characteristics of the aircraft electric motor. The object under examination was a brushless DC motor AXI 2820/14 of 360 W power. Presented and discussed is the AFIT-made test bench that enables suitable, pre-planned experiments to be carried out. Discussed are also procedures of taking measurements of electric motor characteristics, followed with discussion of results. Presented selected issues of parametric description of gained results. With measurements as the basis, the relationships, first, between the electric motor’s efficiency and temperature, and second, between both the applied power and the power output (effective power) and the ambient temperature have been found. The most important findings of the testing work are, first, that the pressure does not affect the characteristics of the electric motor’s performance and second, determination of how temperature affects these characteristics. The results gained have formed the basis for the most vital flight parameters of electrically driven aircraft to be found, including the energy consumption essential for the flight range and endurance. All these findings give grounds for standardization calculations that consist in recalculation of characteristics determined in the course of aircraft flight-testing. Because of their representativeness, they also prove good illustrative examples to demonstrate properties of aircraft’s electric propulsion system.
Źródło:
Journal of KONES; 2014, 21, 4; 203-210
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The power impact of electric power assist in hybrid vehicle
Autorzy:
Andrych-Zalewska, M.
Chmielewska, P.
Wróbel, R.
Powiązania:
https://bibliotekanauki.pl/articles/242222.pdf
Data publikacji:
2017
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hybrid vehicle
Honda CR-Z
electric motor
Opis:
The current interest in the development of hybrid vehicles is a response to serious effects of road transport on the environment over recent years. In addition, vehicles equipped with this type of drive combine the advantages of a conventional diesel engine and electric motor. This results in higher system efficiency while reducing emissivity. This work seeks to demonstrate the effect of electric power on the total power of a hybrid vehicle. The research on the chassis dynamometer (MAHA LPS 3000) of the hybrid sports car, Honda CRZ, has been performed in three modes of operation: normal, economical and sport. The obtained results are presented in the form of graphs of external engine characteristics, where the influence of electric power on the system is visible. The tested vehicle is equipped with sixth version of Honda’s Integrated Motor Assist (IMA) technology, which is the crucial system, assisting the combustion engine in order to provide higher performance and better fuel economy.
Źródło:
Journal of KONES; 2017, 24, 4; 17-24
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prototype of electric bus of AMZ Kutno
Autorzy:
Pawelski, Z.
Maciejczyk, A.
Wróbel, T.
Powiązania:
https://bibliotekanauki.pl/articles/244239.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electric bus
electric drive system
electric motor
inverter
microprocessor control system
pack of batteries
batteries management system
supercapacitor
energy recuperation system
Opis:
The article discusses the prototype bus AMZ Kutno electrically driven. The aim of the project prototype electric powered bus was appointed a consortium consisting of AMZ Kutno and Department of Vehicles and Fundamentals of Mechanical Engineering of Technical University of Lodz. As a subcontractor prototype solutions involved: for battery power BMZ Gliwice, and for the control system ENIKA Lodz. The prototype bus with complete drive system is an entirely polish construction. The paper presents assumptions for the construction of a prototype electric drive system. It describes the criteria for the selection of the engine. Was analysed the available parameters of electric motors. Adopted electric motor is discussed in detail in terms of its performance characteristics. Required performance characteristics of electric motor shown in figure. The considerations taken into account and the aspect of the selection of the inverter and the microprocessor control system control the amount of energy in batteries and supercapacitors, depending on the instantaneous energy demand and the expected driving performance. Was compared the parameters of available batteries and set them the necessary capacity. It has been specified parameters of adopted battery pack. Was described the role and selection of supercapacitors in energy recuperation system provided. The assumptions were supported by the necessary calculations.
Źródło:
Journal of KONES; 2014, 21, 1; 197-204
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propulsion module for unmannned vehicle
Autorzy:
Polak, F.
Szczęch, L.
Powiązania:
https://bibliotekanauki.pl/articles/244495.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
unmanned vehicle
hybrid propulsion system
UGV
electric generator
electric propulsion motor
Opis:
Solution of the propulsion system of the unmanned vehicle elaborated and built in the Laboratory of Internal Combustion Engines Military University of Technology is shown in the paper. Unmanned vehicles are about to play key role in modern warfare. There are many types of unmanned vehicles. Those which can operate in urban areas, especially inside buildings are considered as a most useful for modern army. Most unmanned vehicles are battery operated, causing low range or low speed of the vehicle. Internal combustion engines are not proper for operation inside buildings, due to exhaust gases produced by engine. Connecting two types of propulsion system, defect of range in battery and gases in combustion engines are eliminated, because we can program vehicle to not turning on engine inside buildings. Using a module for those types of vehicles, we can design entire gamut of unmanned and even manned vehicles, decreasing design costs and repair time due to parts repeatability. Using a prepared propulsion module, design engineer can freely determine length, width and wheel track of designed vehicle. Designed modules enable vehicle fast return to combat ability, due to parts repeatability. One module, used as a host, can reconstruct damage vehicle. There is possibility of using different engines, enlarging list of available modules. Economic factor has also big meaning, due to parts repeatability.
Źródło:
Journal of KONES; 2011, 18, 1; 479-482
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Project of hybrid motor system in scooter
Autorzy:
Kaźmierczak, A.
Terelak, M.
Powiązania:
https://bibliotekanauki.pl/articles/244231.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hybrid
transport
electric
combustion engines
clean energy
ecology
Opis:
A hybrid electric vehicle is a vehicle which combines a conventional propulsion system with an on-board rechargeable energy storage system to achieve better fuel economy than a conventional vehicle without being hampered by range from a charging unit like a battery electric vehicle, which uses batteries charged by an external source. Hybrid vehicles have a conventional engine (gasoline or diesel) as well as a large battery and an electric motor, so that the wheels of the vehicle are driven by both an internal combustion engine and an electric motor. There are various arrangements for these two motors. The article presented the construction solutions and parameters of this hybrid also included information about basic actions of hybrid motor system in the scooter, with two different sources of power. Designed and carried out motor system in scooter included internal combustion engine and electric engine installed in wheel. Explained how accumulator charging system can charge batteries from the gasoline motor while scooter is traveling at normal road speeds and also how can be connected to a standard 230V. Showed how calculate circle of power between engines with take advantage of microcontroller and how special microcontroller system can control all function in scooter (for example: active source of power, speed, brakes, lights, level of voltage). Explored how energy recuperation system is working during braking of machine. Article included also some important information about few achievements like increasing of vehicle range, bigger stock of power, reduction of gas consumption and reduction of CO2 emission to atmosphere.
Źródło:
Journal of KONES; 2008, 15, 2; 159-162
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Range and acceleration analyze of an electric driven city car with advanced energy storage
Autorzy:
Juda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/242384.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electric vehicle
DC motor
supercapacitor
vehicle range
simulation
Opis:
For short distance (neighborhood) city transport of people, electric driven vehicle with advanced energy storage and electronic control system could assure fulfill essential requirements. range, acceleration ability and grade ability of electric driven small size city vehicle depend on: total vehicle mass, energy storage type and size, vehicle exploitation conditions (motorway, city traffic). Energy storage type and size optimization and full utilization of regenerative braking system leads to significant amount energy saving. Regenerative braking is particularly important in city traffic, where a lot of acceleration/braking cycles occur. Advanced secondary energy source consist of electrochemical battery and stack of supercapacitors. Using supercapacitors as an additional energy source makes it possible to improve battery life cycle and simultaneously to decrease the exploitation costs of electric vehicle. Short charging and discharging times of supercapacitors give ability to quick accept large amount of energy. In order to cooperate with batteries, a power electronic converter is necessary. Knowledge of vehicle energetic parameters could be obtained by model based simulation than verified by research testing. To estimating the energy consumption, energy recovery, range, acceleration and grade ability, simulation in MATLAB environment has been performed applying special low speed vehicle drive cycle based on ECE-15 driving cycle. The results of simulation are presented in this paper
Źródło:
Journal of KONES; 2009, 16, 2; 209-215
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of a permanent magnet motor with an inverter in a drive system of a car. Part 2
Autorzy:
Pawelski, Z.
Uszpolewicz, G.
Powiązania:
https://bibliotekanauki.pl/articles/245003.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electrical machines
permanent magnet motor
inverter
electric drive control system
Opis:
The article presents a mathematical model of a permanent magnet motor, powered by a three-phase source of sinusoidal voltage, and a control method. Cooperation between numerical integration algorithms in the differential equation system of the motor and an inverter has been verified. The results of numerical simulations are presented in a graphic form. This article is an extension of the publication [12], in which a model of a drive system was proposed, consisting of: a battery, a supercapacitor and a method of controlling these energy sources during a driving cycle of a vehicle. For vector control, the mathematical model of a synchronous machine in the dq coordinate system is the most common one. The most important feature of this control method is the fact that the iq component of the rotor current vector determines the value of motor torque, and the component id – the value of magnetic flux. In the article, the emphasis is put on how inverters work. Their basic task is to generate such currents iabc or voltages uabc to obtain torque without ripples. It leads to development of different control concepts for achieving this goal, which are related to the modelling of magnetic fluxes in a stator and in an inverter.
Źródło:
Journal of KONES; 2018, 25, 4; 325-335
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mathematical model of the sprocket – tensioner and/or road - wheel - hub motor/generator for the intelligent main battle tank
Autorzy:
Fijałkowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/244084.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
mathematical model
physical model
main battle tank (MBT)
motor
generator
electric wheel
Opis:
In the paper has been formulated a mathematical model of the sprocket-, tensioner- and/or road-wheel-hub motor/generator for the electrically-powered and mechatronically-controlled intelligent main battle tank (IMBT). In order to formulate a mathematical model of the sprocket-, tensioner- and/or road-wheel-hub AC-AC, AC-DC-AC or DC-AC/AC-DC macrocommutator magnetoelectrically-excited in-wheel-hub  motor/generator,   analogous  to  the mathematical model of the brushed DC-AC/AC-DC commutator IPM magnetoelectrically-excited motor/generator with a rotating DC-AC/AC-DC mechanoelectńcal commutator taking into consideration equations of unholonomic constraints of the AC-AC, AC-DC-AC or DC-AC/AC-DC commutator, a set of the second-order Euler-Lagrange differential equations ofdynamics in a matrix notationfor the AC commutatorless on-board generator can be written. After taking into account the equations of unholonomic constraints of the MCT or MOSFET AC-DC/DC-AC macrocommutator in the differential equations of dynamics one can be obtained differential equations of dynamics, establishing of a mathematical model of AC-DC/DC-AC macrocommutator magnetoelectrically excited in-wheel-hub generator/motor with  the MCT or MOSFET application  specific  integrated matrixer  (ASIM) AC-DC/DC-AC macrocommutator, acting as the electrical machine's MCT or MOSFET ASIM AC-DC rectifier/DC-AC inverter.
Źródło:
Journal of KONES; 2009, 16, 1; 125-136
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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