Temat: electric transport - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cooling of removable battery pack in the electric car
Autorzy:: Mitianiec, W.
Powiązania:: https://bibliotekanauki.pl/articles/241767.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
electric cars
battery
cooling system
Opis:: The thermal management system is the one most important unit in the electric car which controls temperature of electric devices by obtaining a stability of their operation in different load and ambient conditions. For the other side the removable pack installed in the closed cradle for easier service during exchange of the modules should be cooled by the air. It is also better for safety during exploitation for the vehicle parts and people. The paper presents the proposal of ventilation of battery packs, assumptions of the battery pack cooling system, mathematical model of heat exchange and graphical results obtained from simulation carried out using the CFD program. During modelling it took into account two models: two-dimensional and three-dimensional for evaluation of the air flow and cooling rate of the battery modules. It was assumed four modules in one row of the cradle with total electric capacity above 4 kWh. The paper shows geometry of the whole battery unit with ventilation passages in 3D configuration. The aim of the work was determination of thermal parameters of the battery modules cooled by the air flow in the close chamber. The proposed cooling model of the cradle with air flow caused by fans in the pipe inlet shows that it is not possible to decrease temperature in the same way of each battery modules.
Źródło:: Journal of KONES; 2013, 20, 2; 277-284
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Model of vehicle electric drive system
Autorzy:: Pawelski, Z.
Zdziennicki, Z.
Powiązania:: https://bibliotekanauki.pl/articles/245296.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
electric vehicle
energy storage
electric drive
driving cycle
battery model
Opis:: Models of electrical energy storage devices – a battery and a supercapacitor – as well as models of motor and a control system, were used to feature the work of a hybrid electric drive system. The models were adapted to simulate driving with a given driving cycle, in a quasi-static method, with the use of MATLAB-Simulink software. The advantage of this method is that calculations can be done quickly and results can be easily compared. A battery model enables determining voltage and charge level in relation to load current and temperature. The basic parameter of a battery is a nominal capacity. It is a measure of energy stored in the battery, which can be absorbed within discharge time, in conditions of temperature and current. The energy can be absorbed until the minimal voltage is reached in the clips. The article presents simulation of calculations lead that the described electric drive model. The model makes it possible to analyse different concepts of steering the whole system already in the initial phase. In particular, the article presents PMSM model and trajectories of selected parameters during a trapezoidal driving cycle.
Źródło:: Journal of KONES; 2017, 24, 3; 211-220
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Hybrid drive application for high-speed tracked vehicle
Autorzy:: Mężyk, A.
Czapla, T.
Klein, W.
Powiązania:: https://bibliotekanauki.pl/articles/244179.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
tracked vehicle
hybrid drive
electric drive
Opis:: Analysis of possible hybrid drive for tracked vehicle solutions and also concept vehicle project is presented in the paper. Study ofpresent tracked vehicle state-of-art shows that in case majority of currently designed and developed military tracked vehicles projects modifications hybrid propulsion is taken into account. Based on that, authors have decided to develop concept hybrid tracked vehicle study. Basic parameters of concept vehicle are described at the beginning: total vehicle mass up to 14 Mg, maximum speed over 60 km/h and also possibility of stealth operation at the low speed using electric energy stored in batteries. Then, analysis of hybrid electric drives configurations is presented. Three versions of hybrid electric propulsions are considered: two series hybrid drives and one parallel. Then final version is chosen for further development with discussion on justification of the choice description. dynamic model assumptions and modelling methods are described in next section. As a result of simulation, acceleration diagrams for chosen operation modes are shown. As the final stage of concept study, virtual 3D model was built. Virtual modelling methods are used to optimize transmission components layout in a concept tracked vehicle hull.
Źródło:: Journal of KONES; 2009, 16, 1; 341-349
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Possibility of reducing CO2 emissions for example electric vehicles
Autorzy:: Merkisz-Guranowska, A.
Daszkiewicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/950152.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
electric vehicles
emission
fuel consumption
energy
Opis:: Development of road transport is now subjected to numerous constraints related to reachability exhaustive sources of liquid fuels and the associated increase in their prices. In addition, restrictions on emissions tend for quickly change the drives with an internal combustion powered petroleum products for electric cars in the near future. Compared to the conventional internal combustion engine, full electric cars driven on European roads appear as environmental winners for the next decades in terms of environmental protection.The article draws attention to the growing increase in CO2 emissions over the years until 2050.Forecasts by 2050, it is estimated that environmentally friendly vehicles will probably reduce the CO2 emissions into the atmosphere comes from cars.The article shows that the speaking of electric vehicles in terms of ecology should take into account the emissivity of the vehicle together to produce a current, and not only the emission of the vehicle from tan to wheel. In the article dealt with directions of development electric sector model in the context of the year 2050. It presents three scenarios that involve the reduction of CO2 emissions, which directly translates into lower fuel consumption.
Źródło:: Journal of KONES; 2014, 21, 3; 211-217
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

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

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Skocz do pozycji: 6.

Tytuł:: Electric energy balance of the Rotax 912 with fuel injection
Autorzy:: Skiba, K.
Czarnigowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/247464.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: electric energy balance
air transport
combustion engine
transport
bilans energii elektrycznej
transport powietrzny
silnik spalinowy
Opis:: A majority of ultralight aircraft is powered by the Rotax 912 ULS, which is a four-cylinder carburettor piston SI boxer engine. However, its power-to-power advanced aircraft is insufficient. This article discusses the examination of the Rotax 912 fitted with a modified power system and mechanical charging to increase the power of a base unit by 36%. This engine was developed as a collaborated project of the Lublin University of Technology and the AVIATION ARTUR TRENDAK & SON GmbH, a manufacturer of autogyros. Sources of energy in the Rotax 912 are generated with a generator integrated with an ignition system of a maximum power of 250 W at 5800 rpm and 13.5 V [1]. The technology of fuel injection and charging required us to apply control systems and to measure engine-operating parameters, which resulted in higher electric energy demand. Additionally, a mechanical pump was replaced with a more efficient electric pump, which also changed electric energy balance. The examination was conducted on the test stand of the Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems of the Lublin University of Technology. The measurement system consisted of the Tektronix TCP305 current probes and TCP A300 converters. Signals were recorded with data acquisition cards and the National Instruments Ni CompaktDAQ module. Power consumption was measured for the selected speed ranging from 2000 to 5800 rpm. The current probes were appropriately installed on power cords. The probes recorded respectively the power consumed by the fuel pump, the energy demand of the lambda sensor, and the electricity taken by the ECU. The data obtained was converted with the author's script in LabVIEW. Based on the results, the highest electricity demand shows the fuel pump. Furthermore, increasing engine speed and load results in higher pressure in the fuel system and consequently in the higher power demand of the pump. The pump consumes up to 89% of all energy consumed by the system. In the control system, the highest demand shows lambda sensor BOSCH LSU4.2 [4]. With the increase in speed, the exhaust gas temperature increases, which leads to less power consumed by the heater of the sensor head. The demand of the other measurement systems and actuators is less than 10.6% of total consumption. The investigation shows that the total power demand of this new system ranges from 63 to 73 W, which is from 24 to 70% of the total power output from a generator mounted on the engine.
Źródło:: Journal of KONES; 2017, 24, 1; 317-323
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Selected aspects of the construction of armoured bank vehicles of new generation
Autorzy:: Pijanowski, B.
Łukjanow, S.
Zieliński, W.
Powiązania:: https://bibliotekanauki.pl/articles/246670.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
armoured vehicles
bank vehicles
electrical requirements
electric standards
Opis:: The high degree of persons and property security risk, especially during cash value transport increases the demand for Cash/valuables-in-transit (CVIT) vehicles. These vehicles are, in addition to the transport of valuables, which include money, goods made of silver, gold, platinum, may also carry documents containing classified information important for the security of the State. It is noticeable tendency to increase safety requirements for use of these vehicles. The new Regulation of the Minister of Internal Affairs and Administration respecting “the requirements to be met to protect the monetary value stored and transported by businesses and other agencies” of 7 September 2010 (Dz.U. 2010.0166.1128) introduces three groups of CVIT vehicles: type A, type B and type C. The most strict, but also providing the highest levels of security are requirements for CVIT vehicles type A. This article refers to some problems concerning the design of these vehicles. The article presents regulations and standards referring to the CVIT vehicles obligatory in Poland. There are presented the uppermost technical requirements for new generation of CVIT vehicles. There are also proposed the attack protection performance classes and ratings for quality assessment of these vehicles, including the energy ratio. Some of the issues of construction and armour in relation to the use of the series cargo truck bodies and chassis for building the CVIT vehicles are discussed. There are discussed the operation and application of an innovatory auxiliary drive unit and some electronic systems
Źródło:: Journal of KONES; 2013, 20, 4; 349-356
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: "Off Road" vehicles in the aspect of future emission exhaust quality standards
Autorzy:: Jantos, J.
Mamala, J.
Bieniek, A.
Kowalski, D.
Graba, M.
Powiązania:: https://bibliotekanauki.pl/articles/245720.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: injection pump
pollutant emission
electric valves
transport
off-road
Opis:: Current engine technology for on-road vehicles allows us to meet the existing and planned future standards for emission. Because combustion engines, especially self-igniting are being used for very different purposes like: road transport, rail-way transport, shipping, industry, military and agriculture, these engines work in different and often difficult conditions. A very significant group of vehicles used for the most difficult of the a forementioned areas ofuse are "Off-Road" vehicles. For those vehicles we also use rigorous regulations to govern dangerous chemical emissions such as Tier, Bin and Californian LEV. In those types of vehicles the fuel powered systems very often use mechanically controlled diesel injection pump. These pumps are characterized by high tolerance to the quality and type ofpetrol as well as reliability, which is very important especially in "off-road" vehicles. At work a conception was described of system of powering the engine diesel which will let for reaching of future emission exhaust quality standards. In the paper only initial outline of the idea of the injection 's system for „off-road" vehicles, is introduced. This system needs follow-on in the field both interactions with the EGR valve, with the injection 's system as well as in the matter of interaction with ECU of the injection 's system.
Źródło:: Journal of KONES; 2009, 16, 4; 201-206
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Irregularity of rotational speed of diesel engine with modified fuel injection system
Autorzy:: Kowalski, D.
Bieniek, A.
Brol, S.
Powiązania:: https://bibliotekanauki.pl/articles/247225.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: injection pump
pollutant emission
electric valves
transport
off-road
Opis:: The operation of diesel engine is closely connected with controlling the process of injecting the fuel into the cylinder. It influences proper combustion process, which translates directly into irregular engine operation resulting in dumping and noise. It is related to improper control of fuel injection which is connected with improper completion of expected control strategy that can be a result of defective injection system. Irregular engine operation can also be caused by total lack of initiated combustion process in specific cylinder of the engine or in several cylinders, described as misfire, or ca be a result of differences in combustion process in individual operation cycles / engine cylinders. The effect is an engine working irregularly (there is instability of rotational speed) and emitting increased amount of pollutants. As a consequence the secondary fuel purification systems located in the exhaust system can be damaged. Therefore, it is required to choose the fuel injection control parameters in a way that enables detecting and correcting the process of fuel injection in order to minimize effects resulting from improper process of fuel combustion in individual cylinders or even lack thereof. It is useful to suggest diagnostic parameter that can be used to detect engine faultiness or elements of the accessories such as e.g. injection system. Ability to apply such control and correction of injection dose is provided by modified mechatronic in-line injection pump. The study shows results of researches on modified injection system with mechatronic in-line injection pump that enables identification of misfire and preventing irregular operation of diesel engine.
Źródło:: Journal of KONES; 2011, 18, 4; 199-204
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Testing of the electric vehicle in driving cycles
Autorzy:: Gis, W.
Żółowski, A.
Bocheńska, A.
Powiązania:: https://bibliotekanauki.pl/articles/241833.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: electric vehicles
road transport
environmental protection
FTP
NEDC
Stop&Go
Opis:: The energy consumption of the car depends on traffic conditions and the car characteristics, speed and motion resistance such as rolling resistance, the slope angle, wind speed, etc. Vehicle speed determines the energy consumption in the vehicle in the comparable moving conditions. It is necessary to perform the research in a number of tests corresponding to the different traffic conditions to widen the knowledge beyond that from type-approval tests. The article presents energy consumption studies of electric passenger car in both approval tests: European – NEDC, American – FTP as well as special tests, for example Stop and Go. The tests were repeated several times, i.e. for different initial levels of battery charge. In addition, tests under real traffic conditions on the big city streets have been conducted. The measurements were made on a Zilent Courant passenger car, produced by Chinese company Shandong Baoya New Energy Vehicle Co. ltd. This is a pure electric vehicle, which meets the conditions for qualifying it as a “pure electric vehicle” in accordance with section 2 of the ECE Regulation no. 101. Courant is a 4-seat vehicle, based on the version of the spark ignition engine. The vehicle is equipped with an electric, brushless engine of 8.5 kW power. Acid-lead batteries provide a nominal voltage of 120 V.
Źródło:: Journal of KONES; 2012, 19, 4; 207-221
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Investigations of electric field strength (in EMC context) in chosen vehicles exposed to electromagnetic field
Autorzy:: Łukjanow, S.
Tokarzewski, J.
Kołodziejczak, M.
Powiązania:: https://bibliotekanauki.pl/articles/242095.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
vehicles
electrical/electronic equipment
electrical/electronic reguirements
electric/electronic standards
Opis:: Fast development of electronics in recent years causes that the number of various kind electronic systems is still growing. This causes also that requirements concerning tests of electromagnetic compatibility (EMC) of whole vehicles as well as their electric/electronic subassemblies become more significant. In this paper, the most important requirements of international regulations in the range of EMC, i. e., ECE UN Regulation No. l0 and EU Directive 2004/104/EC, have been outlined. Moreover, results of investigations of electric field strength inside of three chosen vehicles have been presented. The tests have been performed, according to Directive 2004/104/EC, in an absorber-lined shielded chamber in thefrequency band 20MHz to 2000MHz and at the electric field strength in the reference point equal to 30V/m. The most important results of these investigations have been presented in the form of graphs of electric field strength distribution in various points of tested vehicles. Individual electric/electronic devices o f a vehicle are exposed to electromagnetic field with a very wide range of values of electric field strength - depending upon a device position in a vehicle, vehicle type and antenna polarization. Values of electric field strength inside of a vehicle may essentially exceed the values recommended by standards for immunity tests of electric/electronic subassemblies.
Źródło:: Journal of KONES; 2009, 16, 3; 233-241
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Ecological city car, concepts, design and realization
Autorzy:: Grzegożek, W.
Powiązania:: https://bibliotekanauki.pl/articles/244072.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: city transport
green cars
hybrid drive line
electric car
car body design
Opis:: The paper deals with concepts, design and realization of a small ecological city car. A small, electric car is anticipated to be a solution to city traffic problems. The future users of a city electric car have been defined. City car should be characterized by the following features: low cost of purchase and maintenance, high functionality, possibilities of movement in zero emission zone, large space and easy access to luggage compartment, simplicity of parking manoeuvres, possibilities of customizing a car body features. These features made this car a perfect means of transport for the elder and disabled. Three versions of a city car with different drive lines are considered. The same car body for each version is proposed. The car chassis is also the same in each version. The version l of city car is made. It is an L6e class car. This prototype allows carrying out some research on a new electric motor, new kind of batteries and working out the control units for cooperation between the electric motor and generator. In the paper the basic performances of the car are presented and its main parł the structure is shown. Features of the next version of small ecological city car are described as well as their advantages.
Źródło:: Journal of KONES; 2009, 16, 1; 157-164
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Researches on power transmission systems of traction vehicles with a hybrid drive
Autorzy:: Kozłowski, M.
Plich, M.
Powiązania:: https://bibliotekanauki.pl/articles/244193.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
hybrid drive vehicles
unconventional power supply sources
electric machines
energy accumulators -super capacitors
Opis:: The structures of modern traction vehicles are based on new generation devices. Technical progress within the field of power transmission concerns such elements as sources of power supply, electric devices and energy electronic solutions in power transmission systems. The prototypes of traction vehicles being currently drawn up are hybrid vehicles using different kinds of sources of power supply ofpower transmission systems, the most important of which are combustion engines, contact systems, supercapacitors (ultracapacitors), accumulators and fuel cells. Main engines are usually electric machines. In energy electronic starting systems it is permissible to use all kinds of main electric engines, for example, direct-current motors (inline engines, commutator motors with permanent magnets or non-commutator motors) or three-phase motors of alternating current (induction and synchronous). This means a complete change of rules in energy managing in a vehicle. Sources of energy can have the function of basic power supply (contact system, combustion engine or combustion cell) or the function of power supply support (supercapacitors, accumulators or fuel cell). New functions of drive operation will be available, namely, leveling of basic power supply load, recuperation of braking energy of the whole train set, driving at the temporary disconnection of basic power supply (short-term application of accumulator as basic power supply). Each of the above functions can contribute to the improvement of watt-hour efficiency of the system or to prolonging the range of driving. Therefore, it is necessary to undertake research on new generation power transmission systems. Research tasks focus on measurement of state variables of a drive, analyses of traction signals, modeling of drive operation in the conditions of driving cycle realization, verification of a model, drawing up a strategy of energy management in order to achieve the best watt-hour efficiency and the range of driving. In the article presented, sample results of researches on applications of hybrid power transmission systems conducted in various national research centers will be demonstrated. They concern both theoretical research (model simulation) and prototype research. The conception will be presented of a laboratory station for conducting research on modern sources of power supply and drives, which is currently being built at the Faculty of Transport of Warsaw Polytechnic at the Division of Exploitation of Tracking Systems and Electric Equipment in Transport.
Źródło:: Journal of KONES; 2008, 15, 2; 233-238
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Results of the crash tests of electric cars
Autorzy:: Żuchowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/243537.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
vehicle safety
crash tests
safety of passengers
electric vehicles
transport drogowy
bezpieczeństwo pojazdu
testy zderzeniowe
bezpieczeństwo pasażerów
pojazdy elektryczne
Opis:: The work presents the results of crash tests carried out with six electrical car models (from 2012-2013), with the weight of 1200-2300 kg (Smart Electric Driver, Mitsubishi IMiEV, Nissan Leaf, CODA, Ford Focus BEV, Tesla Model S). The results were published on the Internet by the National Highway Traffic Safety Administration (USA), and the tests involved a car travelling at the speed of 56 km/h, hitting frontally into a non-deformable (stiff) barrier, positioned perpendicularly to the car’s direction of movement. Particular attention was paid to the deformation of the car after hitting the barrier, so-called stiffness characteristics of the frontal crumple zone, and to the loads on the dummies placed at the driver’s and passenger’s seat (Hybrid III, a 50-centile man and a 5-centile woman). Results of the tests with electric cars were compared with the results of the tests with over a hundred of combustion engine cars with similar weight and type of car body (sedan, hatchback). The tests proved that, in the majority of electrical cars tested, the deformation of the frontal crumple zone after hitting an obstacle is larger than in case of similar cars with internal combustion engine. Because of that, the dynamic loads on the occupants of the vehicle tend to be smaller, as indicated by measured loads on the heads and chests of the dummies. The results may suggest that the frontal crumple zone may be better constructed in the case of electric cars, while the design possibilities regarding that area are limited in standard cars due to the combustion engine, which is not deformed during the accident, which makes it more difficult for the energy of the crash to dissipate.
Źródło:: Journal of KONES; 2018, 25, 1; 483-490
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Effective harvesting of braking energy in electric cars
Autorzy:: Trzaska, Z.
Powiązania:: https://bibliotekanauki.pl/articles/242744.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: urban transport
environmental protection
electric cars
energy harvesting
braking energy recovering
damping energy recovering
supercapacitor
simulation
transport miejski
ochrona środowiska
samochody elektryczne
zbieranie energii
odzyskiwanie energii hamowania
odzyskiwanie energii tłumienia
superkondensator
symulacja
Opis:: Regenerative braking and damping are effective approaches for electric cars to extend their driving range. A disk Faraday generator regenerative braking strategy integrated with controlled charging of a supercapacitor is developed in this article to advance the level of energy-savings on the car board. The kinetic energy of the car suspension during driving regenerated effectively to electric energy by using shock absorber is harvested and then used to charge the vehicle’s battery, the power electronics and the supercapacitor. One of the advantages of supercapacitors is their high power capability, which is applicable for high rate of charging and discharging operations like motor starting and regenerative braking of an electric vehicle. This article presents a new charging method for supercapacitors. Common for regenerative braking and damping chargers for supercapacitors are usually equipped with electronic PWM converter performing two states of operation per switching cycle. A simple open-loop control system is applicable for the whole charging state. The proposed circuit consists of a minimum number of components. It is free of stability problem and protects itself from being overloaded by supercapacitor with zero initial charge. Simulation results for regenerative braking processes corresponding to three velocity tests are included.
Źródło:: Journal of KONES; 2018, 25, 1; 407-422
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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