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Tytuł:
A flywheel-based regenerative braking system for railway vehicles
Autorzy:
Jackiewicz, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2204653.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
railway brakes
flywheel
regenerative braking system
Opis:
Regenerative braking is a technique that employs electric motors to convert the dynamic mechanical energy from the motor’s spinning rotor and any attached loads into electricity. However, such a type of regenerative braking can only slow but not stop the vehicle because there is too little energy to excite the motor acting as a generator at low speeds. Therefore, this paper presents a unique flywheel-based regenerative braking system for railway vehicles. This system is supposed to meet high safety and comfort expectations in all operating conditions. The braking action control of this system should allow braking of empty or loaded vehicles according to load, the anti-blockage braking action of wheels and prevent wheel-slide during braking or wheel slip during acceleration. The new regenerative braking system under development, like any kinetic energy recovery system, requires the application of continuously variable transmission. The essence of the new solution is to design and build this type of variable transmission using only one planetary gear controlled through the powertrain control module for an electric motor cooperating concurrently. This paper describes complete modelling and simulation realisation on a closed-loop servomotor drive, which cooperates with the variable transmission of the regenerative braking system based on the Scilab/Xcos environment.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 1; 52--59
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
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:
The analysis of energy recovered by an electric vehicle during selected braking manoeuvres
Autorzy:
Szumska, Emilia M.
Adriana, Skuza
Jurecki, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/2200809.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
regenerative braking
regenerative energy
electric vehicle
vehicle testing
Opis:
Electrical vehicles have the ability to partially recover some kinetic energy during braking. Kinetic energy is transformed into electric energy, which is fed to the battery by the control system and stored there for further use. The aim of this paper was to analyse the levels of energy recovered by an electric vehicle during braking at various speeds and with different braking intensities. The first phase of testing consisted of vehicle braking tests in real-life conditions. The registered speed profiles were then used as input data for the simulation software. The authors have also analysed the effect of the state of charge of the battery and of the vehicle’s load on the amount of energy recovered during braking. The performed simulation tests demonstrated that the level of recovered energy is significantly affected by the initial braking speed and by the force of pressure applied to the brake pedal. The amount of recovered energy is less affected by the state of charge (SOC) of the battery and by the vehicle’s load. Energy regeneration during braking is currently an important research topic. The efficiency of an electric vehicle depends on the range, which can be extended thanks to the additional energy recovered during braking maneuvers. The presented preliminary simulation results are intended to assess the level of energy recovery in electric vehicles. The authors are aware that a full, comprehensive analysis requires additional research using electric vehicles that will verify the results presented in the paper.
Źródło:
Archiwum Motoryzacji; 2023, 99, 1; 18--29
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A layered compensation optimization strategy of energy storage type railway power conditioner
Autorzy:
Wang, Ying
He, Yianqiang
Chen, Xiaoqiang
Zhao, Miaomiao
Xie, Jing
Powiązania:
https://bibliotekanauki.pl/articles/2042792.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electrified railway
energy storage system
negative sequential governance
railway power conditioner
regenerative braking energy
Opis:
Aiming at the problems of the negative sequence governance and regenerative braking energy utilization of electrified railways a layered compensation optimization strategy considering the power flow of energy storage systems was proposed based on the railway power conditioner. The paper introduces the topology of the energy storage type railway power conditioner and analyzes its negative sequence compensation and regenerative braking energy utilization mechanism considering the influence of equipment capacity and power flow of the energy storage system on railway power conditioner compensation effect, the objective function and constraint conditions of the layered compensation optimization of the energy storage type railway power conditioner were constructed and the sequential quadratic programming method was used to solve the problem. The feasibility of the proposed strategy is verified by a multicondition simulation test. The results show that the proposed optimization compensation strategy can realize negative sequence compensation and regenerative braking energy utilization, improve the power factor of traction substations when the system equipment capacity is limited and it also has good realtime performance.
Źródło:
Archives of Electrical Engineering; 2022, 71, 1; 5-20
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hybrid drivetrain systems 48 V in rally cars
Autorzy:
Urbański, Bartłomiej
Przybyła, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2097586.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid drivetrain
mHEV
48 V
regenerative braking
car rallies
hybrydowy układ napędowy
hamowanie odzyskowe
rajdy samochodowe
Opis:
This article deals with the issue of using a 48 V hybrid drive system in rallying. Conclusions regarding the selection of elements of the above-mentioned system for further reasearch were presented. An analysis and calculations of the energy recoverable from regenerative braking using the BISG on a given section of the rally were carried out. Conclusions were also drawn regarding further work that will be carried out to successfully implement the above-mentioned systems for rally cars.
Źródło:
Combustion Engines; 2021, 60, 4; 96--101
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regenerative braking as a way to recover lost energy in hybrid vehicles
Autorzy:
Soliński, Michał
Powiązania:
https://bibliotekanauki.pl/articles/93110.pdf
Data publikacji:
2020
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
braking system
regenerative braking
hybrid vehicle
układ hamulcowy
hamowanie regeneracyjne
pojazd hybrydowy
Opis:
The very rapid development of the automotive industry forces designers to implement new solutions. One of them is the construction of braking systems, which can enable the recovery of part of the energy lost during the braking process in hybrid vehicles. The article presents the basic types of hybrid drives currently used in motor vehicles. The principle of operation of the mechanical and electrical energy recovery system had been discussed, and the vehicles in which such solutions had been applied were indicated.
Źródło:
Science, Technology and Innovation; 2020, 8, 1; 21-25
2544-9125
Pojawia się w:
Science, Technology and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibility of energy consumption reduction using the ECO driving mode based on the RDC test
Autorzy:
Cieślik, Wojciech
Szwajca, Filip
Golimowski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2097469.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
electric vehicle
energy flow
regenerative braking
powertrain
driving mode
pojazd elektryczny
przepływ energii
hamowanie odzyskowe
układ napędowy
tryb jazdy
Opis:
The greenhouse effect and overall climate changes are the main reasons for developing ecological powertrain units dedicated to road vehicles. An electrical drivetrain without using conventional combustion engines fueled by hydrocarbon fuels is an effective method to significantly reduce CO2 emissions from the fleet. It is particularly vital in 2020 emission regulations aspects, and continuously the number of vehicles increasing. In this paper battery electric drive system of a small size passenger car was analyzed in terms of two different drive modes in cooperation with two recuperative braking modes. The research was carried out with real driving condition test requirements and driving parameters recording. Based on data obtained from OBD signals, energy flow and torque distribution have been specified. In results, overall reducing energy consumption has been achieved with ECO mode compared to normal mode. Selection of the driving mode ECO has a positive impact on reducing the state of charge saving more than 5%, taking into account the whole RDC test; greater energy consumption reductions were observed in selected test areas.
Źródło:
Combustion Engines; 2020, 59, 3; 59--69
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the regenerative braking process for the urban traffic conditions
Autorzy:
Kropiwnicki, Jacek
Furmanek, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/132918.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
regenerative braking
real traffic conditions
hybrid vehicles
electric vehicles
energy consumption
route planning
hamowanie odzyskowe
rzeczywiste warunki ruchu
pojazdy hybrydowe
pojazdy elektryczne
zużycie energii
planowanie trasy
Opis:
In a regular drive system, with an internal combustion engine, vehicle braking is connected with the unproductive dissipation of kinetic and potential energy accumulated in the mass of the vehicle into the environment. This energy can constitute up to 70% of the energy used to drive a vehicle under urban conditions. Its recovery and reuse is one of the basic advantages of hybrid and electric vehicles. Modern traffic management systems as well as navigation systems should take into account the possibility of the energy recovery in the process of regenerative braking. For this purpose, a model of a regenerative braking process may be helpful, which on the one hand will enable to provide information on how traffic conditions will affect the amount of energy dissipated (wasted) into the atmosphere, on the other hand will help to optimize the route of vehicles with regenerative braking systems. This work contains an analysis of the process of the regenerative braking for the urban traffic conditions registered in Gdańsk. A model was also presented that allows calculating the amount of energy available from the braking process depending on the proposed variables characterizing the vehicle traffic conditions.
Źródło:
Combustion Engines; 2019, 58, 3; 203-207
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hamowanie odzyskowe miejskich autobusów elektrycznych
Regenarative braking of battery-powered city buses
Autorzy:
Miszewski, M.
Marczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1196933.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
elektryczne autobusy miejskie
hamowanie elektrodynamiczne pojazdów elektrycznych
hamowanie odzyskowe pojazdów elektrycznych
electric city buses
electrodynamic braking of electric vehicles
regenerative braking of electric vehicles
Opis:
Usually, the rated power of the traction drive and traction characteristic curves of electric vehicles are selected according to the traction requirements, such as maximum values of acceleration and jerks, maximum speed, capability to travel uphill on a determined gradient at a determined speed etc. This way of selection of the traction parameters of an electric drive does not guarantee that electrodynamic braking would be sufficient during urban rides of the bus, especialy in the high-speed region of the traction effort speed curve of the traction drive where the braking effort of the electric drive is much less in comparison to the low-speed region. Interaction of electrodynamic braking and pneumatic braking is then necessary. However, use of the special braking technique makes it possible to brake a bus only with the help of electrodynamic braking in the almost whole speed range as it was presented in this paper. The proposed braking technique may be successfully used in most cases of urban rides. It should be noted that electrodynamic braking is always advantageous because it causes not only savings in electric energy consumption what is a very important issue especially in the case of battery-powered electric vehicles, but also additionally, even in the case of lack of regeneration, electrodynamic braking ensures less wear of pneumatic brake parts, such as brake shoes and discs. The technique of two-stage braking proposed in this paper should be used by all drivers of electric city buses
Zwykle w pojazdach elektrycznych moc napędu i charakterystyki trakcyjne silników napędowych dobiera się ze względu na wymagania trakcyjne, takie jak wartości maksymalne przyspieszeń i szarpnięć, prędkość maksymalna, zdolność do pokonywania określonych wzniesień z wymaganą prędkością itp. Tak dobrany układ napędowy nie pozwala w czasie jazdy miejskiej na hamowanie autobusu tylko za pomocą hamulca elektrodynamicznego. Dotyczy to zwłaszcza zakresu dużych prędkości, w którym siła hamująca jest dużo mniejsza w porównaniu z zakresem małych prędkości. Konieczne jest wtedy współdziałanie hamulca pneumatycznego autobusu. Jednak, jak to pokazano w prezentowanym artykule, stosując odpowiednią technikę jazdy, można uzyskać hamowanie pojazdu praktycznie w całym zakresie prędkości wyłącznie za pomocą hamulca elektrodynamicznego. W większości przypadków zaproponowany sposób hamowania autobusów możliwy jest do uzyskania w warunkach jazdy miejskiej. Należy zauważyć, że hamowanie elektryczne jest ze wszech miar korzystne, gdyż pozwala na oszczędność energii elektrycznej zużywanej na potrzeby trakcyjne, co jest szczególnie ważne w przypadku pojazdów zasilanych z akumulatorów. Dodatkowo, nawet przy braku rekuperacji, hamowanie elektrodynamiczne zapewnia również mniejsze zużycie części mechanicznych hamulca pneumatycznego, takich jak klocki i tarcze hamulcowe. Zaproponowany w artykule sposób dwustopniowego hamowania powinien być stosowany przez wszystkich kierowców autobusów elektrycznych w ruchu miejskim.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2018, 3, 119; 1-9
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of the efficiency of braking energy recovery in rail transport by changing arrival time
Autorzy:
Urbaniak, M.
Kardas-Cinal, E.
Powiązania:
https://bibliotekanauki.pl/articles/214921.pdf
Data publikacji:
2018
Wydawca:
Instytut Kolejnictwa
Tematy:
rail transport
regenerative braking
optimization of energy recuperation
traffic organization
Opis:
The article refers to the previous work of the authors, in which the model of traffic organization of cooperating trains including the optimization of the use of energy returned to the catenary was presented. In the presented article, the model was modified by changing the main control variable, which affects the efficient use of energy. Departure time was changed for the arrival time of the train to the stop or station. The optimization is done by controlling the arrival time to the station in the acceptable (scheduled) range while maintaining the scheduled departure time. This model assumed optimization using the interval halving method (bisection) to achieve the optimal solution. The modified optimization method has been implemented in the original model of railway traffic organization. It considers the optimal use of energy recovered during electrodynamic braking using the energy transmission strategy to the catenary, assuming the cooperation of a train pair and volume of all recovered energy and stop time at the station.
Źródło:
Problemy Kolejnictwa; 2018, 180; 133-139
0552-2145
2544-9451
Pojawia się w:
Problemy Kolejnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of electric drive with hydrostatic support
Autorzy:
Grzesikiewicz, W.
Makowski, M.
Knap, L.
Pokorski, J.
Powiązania:
https://bibliotekanauki.pl/articles/243753.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
hybrid drive
energy consumption
energy efficiency
regenerative braking
city traffic
napęd hybrydowy
zużycie energii
efektywność energetyczna
hamowanie regeneracyjne
ruch miejski
Opis:
In this article, results of experimental studies concerning the relief of a city car electric drive by means of hydrostatic drive support are presented. Experimental studies were performed using a laboratory station built for this particular purpose. Studies of basic properties of elements of hydraulic system and resistances in the mechanical system were performed. The results of experimental studies of a chosen sub-assembly of hydrostatic drive (i.e. hydro-pneumatic battery) are given. The resistances within mechanical system (flywheel) were determined. In the considered hybrid drive, electric drive is cyclically supported by hydrostatic drive during acceleration or regenerative braking of the vehicle. The results of experimental studies presented in this article were obtained on a designed and built laboratory station representing a model of a lightweight delivery van for city traffic and equipped with the studied hybrid drive. The obtained results suggest that there is a possibility considerably to increase the effectiveness of energy conversion in the electric drive of the vehicle by means of hydrostatic support. By applying the hydrostatic support in the electric drive, the load on the electric battery decreased, which positively influences the length of operation time.
Źródło:
Journal of KONES; 2018, 25, 1; 265-274
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody wykorzystania energii z rekuperacji w transporcie szynowym
Methods of recuperation energy management in rail transport
Autorzy:
Urbaniak, M.
Jacyna, M.
Kardas-Cinal, E.
Powiązania:
https://bibliotekanauki.pl/articles/251571.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
transport szynowy
energia
rekuperacja
hamowanie odzyskowe
rail transport
energy
regeneration
regenerative braking
Opis:
W artykule przedstawiony został przegląd metod wykorzystania energii pochodzącej z hamowania odzyskowego. Wśród znanych i stosowanych w praktyce metod wymieniono wykorzystanie odzyskanej energii na nietrakcyjne potrzeby własne pojazdu, magazynowanie odzyskanej energii w zasobnikach (pokładowych lub stacjonarnych) i wykorzystywanie jej w razie potrzeby, transformację i zwrot odzyskanej energii do krajowej sieci zasilania, a także moż-liwość przesyłu odzyskiwanej energii z powrotem do sieci jezdnej i wykorzystanie jej przez inne pojazdy mające zapotrzebowanie na taką energię (np. w fazie rozruchu). Pokrótce omówiono zasady działania wymienionych metod, wskazano ich wady i zalety oraz podano przykłady zastosowania w praktyce. W podsumowaniu stwierdzono, że wskazane byłoby połączenie tych metod w zintegrowany system odzysku energii i zaproponowano ogólny schemat takiego systemu.
This article presents a review of methods for management of energy gained from regenerative braking. Among known and applied methods, the following are specified: using the recovered energy for non-traction own needs of the vehicle, storing the recovered energy in energy storage system (on-board or stationary) and its later use when needed, transformation and return of the recovered energy to the domestic power grid, and also the possibility of transferring the recovered energy to the traction network and its use by other vehicles (e.g., in during their acceleration phase). The principles of these methods are shortly described, their advantages and shortcomings are pointed out, and the practical applications are given. In summary, it is concluded that it would be advantageous to combine these methods into an integrated system of energy regeneration and a general scheme of such a system is proposed.
Źródło:
TTS Technika Transportu Szynowego; 2016, 12; 355-359
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
  • odwiedzone
Tytuł:
Podstacje trakcyjne prądu stałego z rekuperacją energii hamowania pojazdów
DC traction substations recuperating braking energy of vehicles
Autorzy:
Drozdowski, P.
Duda, A.
Powiązania:
https://bibliotekanauki.pl/articles/253119.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
energia hamowania
podstacja trakcyjna
hamowanie odzyskowe
braking energy
traction substation
regenerative braking
Opis:
W niniejszym artykule zaprezentowano układy przekształtnikowe podstacji trakcyjnych z rekuperacją energii hamowania odzyskowego pojazdów, tj. układ podstawowy z impulsowym falownikiem rekuperacyjnym, w pełni sterowany układ z prostownikiem tyrystorowym i falownikiem impulsowym, układ z mostkiem tyrystorowym pracującym jako falownik i szeregowymi tyrystorami odcinającymi oraz układ z mostkiem tyrystorowym pracującym jako falownik i równoległymi tyrystorami odcinającymi. Wskazano na wady i zalety omawianych rozwiązań oraz przedstawiono metoda uproszczonego obliczenia bilansu energetycznego jazdy i hamowania odzyskowego pojazdu.
The DC traction substations are usually composed of the 3-phase transformer and the output diodę rectifier. So, such deWces do not allow for energy recuperation from the DC side to AC 3-phase mains. The energy recuperation is demanded for regenerative braking of traction drives with pulse converters (inverters for induction motors and choppers for DC motors). In this paper four technical solutions (Fig. 4) allowing for braking energy recuperation are discussed. This can be considered as the modemisation of the existing traction substations in the railway and the municipal traction. Such solutions indicate for three profits: energy recuperation, mechanical brakes saving and enhanced ąuality of traction vehicle control. The proposed converters are compared indicating indMdual advantages and draw-backs. Additionally the method ofsimplified calculation of energy balance of consumed and recuperated energy in the traction network has been presented in Chapter 2.
Źródło:
TTS Technika Transportu Szynowego; 2016, 11; 39-43
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and legal determinants of energy conversion in electric vehicle equipped with energy recovery system
Autorzy:
Juda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/247926.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
regenerative braking
energy conversion
Opis:
Regenerative braking in electric or hybrid driven vehicles is now commonly used feature. Development of technologies of electrical machines, secondary energy sources, power electronics and control systems allows for more efficient using of this attribute. Regenerative braking system converts the kinetic energy of moving vehicles on this form of energy that you can store in a secondary source of energy. The most common form of energy after conversion is electricity, easy to store in batteries or supercapacitors. There also are known systems with storage of mechanical energy (high-speed flywheels with composite rotors). Drive systems with optional regenerative braking should take into account a number of aspects influencing the process. It is very important to maintain the stability of the vehicle movement during braking. Another important aspect is the cooperation of regenerative braking system with conventional, mechanical brake system of the vehicle driven by a single axis. Sizing of the electrical machine (or machines) is associated with the needs of the propulsion of the vehicle, which limits the amount of absorbed energy in the initial stage of braking. Individual elements of the system energy conversion efficiency chain complexity affect the energetic results of this process. On the energy, efficiency of the process of braking energy recovery affects string conversion efficiency in the individual components of the system. Regenerative braking is the important factor, which could improve electric vehicle market chances, particularly in the city or neighbourhood personal transport. The article contains a description of the technical and legal circumstances of the process of regenerative braking and energy aspects of this process.
Źródło:
Journal of KONES; 2016, 23, 4; 193-199
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of parameters of the hybrid drive system in vehicles in urban traffic conditions
Ocena parametrów pracy układu napędu hybrydowego pojazdów w warunkach ruchu miejskiego
Autorzy:
Cieślik, W.
Pielecha, I.
Szałek, A.
Powiązania:
https://bibliotekanauki.pl/articles/134238.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid drive system
combustion engine
electric motor
regenerative braking
real traffic conditions
układ napędu hybrydowego
silnik spalinowy
silnik elektryczny
hamowanie regeneracyjne
rzeczywiste warunki ruchu
Opis:
Continuously increasing share of the hybrid and electric vehicles in the global automotive market justifies the need for detailed analysis of the operational effectiveness of these drive systems. The aim of the study was to assess the operational conditions of the combustion engines and electric motors in hybrid drive systems – full hybrid – of the motor vehicles in urban traffic conditions. Variety of designs of such drive systems is related to the high voltage batteries used and the way of charging them. The road tests were conducted in Warsaw (urban traffic conditions) by recording the operational parameters of three vehicles and their driving systems. The conditions of operation of the combustion engine and electric motors along with the values of their high voltage battery charge level were related to the test routes. The analysis of the relative shares of engine and motor operation time in the total time of vehicle operation in urban traffic conditions was conducted. The scope of operation of the hybrid drive system utilizing only electric propulsion system was determined. The relations between the operational indexes of the hybrid propulsion (combustion engine and electric motor) in real traffic conditions and the charge level of batteries, current speeds and accelerations were shown.
Zwiększająca się liczba pojazdów hybrydowych oraz elektrycznych w światowym rynku motoryzacyjnym wskazuje na celowość szczegółowej analizy efektywności pracy tych napędów. Celem badań opisanych w artykule była ocena warunków pracy silników spalinowych i elektrycznych w układach napędu hybrydowego – full hybrid pojazdów samochodowych w warunkach ruchu miejskiego. Różnorodność konstrukcji takich napędów jest związana z zastosowanymi akumulatorami wysokonapięciowymi oraz sposobem ładowania tych akumulatorów. Badania drogowe prowadzono na terenie Warszawy (warunki miejskie), rejestrując parametry ruchu trzech pojazdów i ich układów napędowych. Warunki pracy silników spalinowych i elektrycznych wraz z wartościami stopnia naładowania akumulatorów wysokonapięciowych odniesiono do tras przejazdu. Dokonano analizy względnych udziałów czasu pracy silników (spalinowego i elektrycznego) w całkowitym czasie eksploatacji w warunkach ruchu miejskiego. Określono zakresy pracy układu napędowego hybrydowego wykorzystującego tylko układ napędu elektrycznego. Wykazano zależność wskaźników pracy napędu hybrydowego (silników spalinowego i elektrycznego) podczas rzeczywistych warunków ruchu od stopnia naładowania akumulatorów oraz od aktualnych prędkości i przyspieszeń pojazdu.
Źródło:
Combustion Engines; 2015, 54, 2; 14-27
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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