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• Maintenance of Electric and Hybrid Vehicles

  37-46

  Paulo Victor De Souza Araujo

  István Komlósi

  Tamás Zoltán Varga

  József Menyhárt

  Views:

  446

  An electric car is a vehicle powered by one or more electric engines, utilizing energy stored within batteries that are rechargeable. The first register of a usable electrical vehicle dates from 1880s. A hybrid vehicle incorporates two or more different power types, including, e.g., gasoline engines and electric motor. The goal in this work is to present the overall overview of the structure of the electric, hybrid and electric-hybrid vehicles, advantages and disadvantages of these types, the main points to focus when maintaining these and the challenges involved in its production and maintenance.

• Consumer Perception of Electric Cars in Hungary – Theoretical Considerations and Empirical Results

  1-23

  Tamás Németh

  László Kovács

  Views:

  292

  Electric cars are becoming increasingly popular in the automotive industry and among consumers; partly as a result of their environmentally friendly characteristics. The aim of the study is to compare the main characteristics of electric and conventional cars in the context of environmental protection. In the first half of the study, we present the life cycle of electric and conventional cars and we compare the overall environmental impact traditional an electric vehicles. We point out that although the operation of an electric car does not pollute the environment locally, the manufacture, charging and disposal of batteries required for operation raises several issues related to environmental pollution. In the second part, we examine the respondents' attitudes towards electric cars based on our own questionnaire research. On the basis of the answers, it can be said that consumers still consider electric cars expensive and are aware that electric cars address some pollution issues to a small extent.

• Review of Modern Vehicle Powertrains and Their Modelling and Simulation in MATLAB/Simulink

  232-250

  Attila Szántó

  Gusztáv Áron Szíki

  Views:

  987

  Thanks to technological advances and environmental standards, as well as changing usage patterns, road vehicles are constantly developing. Electric and hybrid vehicles are playing an increasingly important role in today’s road transport. The most significant changes are probably in the powertrain of vehicles. The efficiency of internal combustion engines increases while their emissions continue to decline. In addition, high performance electric motors, batteries and even fuel cells play an increasingly important role in hybrid and electric vehicles. In this publication, we review the drive systems of current modern vehicles and the types and characteristics of their major components. We also review the available models and computer programs for their simulation, focusing mainly on MATLAB/Simulink applications. Based on this, we can develop our own models and simulation programs which will help us to perform different driving dynamics simulations and to compare the performance, dynamic and energetic characteristics of these powertrains and their components to each other.

• The Impact of Electrical Vehicles on Sustainability: Jordan as a Case Study

  393-403

  Shatnawi Malak M.

  Views:

  170

  The Global concern is moving toward making a revolution in favor of exploitation of renewable energy in order to improve environment conditions, limit emissions and minimizes consumption of non-renewable resources within the planet. In this context, it is necessary to focus on the transport sector as it contributes of at least 30% of the total primary energy consumption. Therefore, a set of rules must be developed to maintain economic, environmental and social sustainability to address the problems so as not to increase their severity and these cannot be done unless there are joint measures and regulations from governments, companies, manufacturers and users. Unfortunately, the Jordanian transport system mostly depend on the individual transport which supported by cars, and that because of the weak role played by the public transport sector, especially at the capital, Amman. Buying hybrid cars (internal combustion engine + electric motor) and Electrical Vehicles (EV), in the past few years in Jordan is increasing, which is compatible with the global trend to use Electrical Vehicles (EV) instead of Internal Combustion Engine vehicles (ICE) powered by fossil fuels, this issue will have a direct and indirect impact on gas stations companies, also it will have direct impact on labor sector and the current car industry since electric charging stations as well as EV manufacturing is not labor intensive. The main purpose of the study is to show how much it is necessary now to start theoretical assumptions through studying the expected annual increase in passenger cars and its impact on sustainability and predicting the future fuel consumption and emissions and compare them with the base situation.

• The Electric Vehicle Penetration in Hungary

  551-562

  Zoltán Tóth

  Views:

  1176

  During the past years I hear that the future of transport in the electric-powered vehicles. the Hungarian Goverment and the European Union is made more device is this form dissemination to the transport campaigners. EU tendering appeared in Electric Car Charging establishment, the number of multiplication of the expansion, faster recharging method of spreading. This is to depart from the common knowledge  recharge time Lenght of significant, the range of motor vehicles despite low rate of population inspired make such purhase of motor vehicles. If that were not enough, the demand side cash incentive device support is, take the numbers provided consumer vehicles 1.5 million HUF state support. This endeavor though the influence of narrow you wish to inspect the car market segment of the reactions, the growth rate of the past few years. Although this is a state-pumped artificially induced market impact.

• Review of Drive Systems Applied in Modern Vehicles

  728-732

  Attila Szántó

  Tamás Mankovits

  Gusztáv Áron Szíki

  Views:

  143

  In this publication we review the drive systems of modern electric and hybrid vehicles. We also discuss the various types of electric motors, batteries, as well as fuel cell systems applied in them. Furthermore, as an important part of hybrid vehicles is the internal combustion engine, we review the literature about the methods used to.

• Simulation of BLDC Motor Drive Systems for Electric Vehicles Using Matlab Simulink

  48-52

  Nemes Dániel

  Sándor Hajdu

  Views:

  155

  The defining scientific developments of our time would not have been possible without the use of simulations. The aim of the research is to create a simulation of a BLDC motor. When creating a simulation, great emphasis must be placed on defining the purpose of the simulation. This basically determines the structure and complexity of the model. The model discussed here was created so that an optimization task could be defined more precisely by inserting it as a sub-model into a vehicle dynamics model. Scalability was another aspect, that is, to be able to increase the accuracy of the model with measured data in the future, as well as to be able to validate it. During the research, a BLDC motor efficiency map generation program was created, as well as an environment for testing the generated data. The created system gives researchers the opportunity to use a shape-correct efficiency model when simulating a BLDC motor even without measured data. This makes it possible to discover real relationships between model parameters when performing optimization.

   

• Ecological Balance of the Life Cycle of the Battery Electric Vehicles

  137-141

  Ferenc Anisits

  Views:

  92

  The economic and ecological assessment of propulsions for mobil applications is based on the analysis oft he entire chain of energy transformation. In this regard, the ecological assessment oft he automobile is complemented by emissions created during its production and ist recycling. The following paper aims at promoting the understandig oft he underlying subject matter and to make the reader aware of relevant aspects that must be looked for in similar assessments. Understanding the discussed contex makes it possible to objectively asses the contribution of BEVs (battery electric vehicles) to the enviroment. The assessment provides hints thet help discover problem areas and assist in deducting goals and measures fort he strategy of emobility.

• Sustainable Energy in Aviation with Reverse FMEA Analyses

  1-12

  József Menyhárt

  N. G. E. Al-Aghbari

  Views:

  34

  This research aims to identify and evaluate the key challenges and obstacles hindering the adoption of sustainable energy in the aviation industry. The outcomes and insights derived from this research will be synthesized to provide a comprehensive overview of the opportunities and suggestions for the adoption of sustainable energy in the aviation industry. The objective of this study is to help the aviation industry’s shift toward more sustainable energy sources in order to reduce its environmental footprint and mitigate the effects of climate change. 

• Measuring the Dynamic Characteristics of Electric Motors

  359-364

  Gusztáv Áron Szíki

  Attila Szántó

  Kornél Sarvajcz

  Views:

  92

  In our previous publications [1, 2], we described our vehicle dynamics simulation program which was developed in MATLAB environment. We also discussed its use for optimizing the technical parameters of electric driven vehicles. We detailed the model and simulation of the series wound DC motor which is part of the program. Besides, we described the experimental procedure by which we can determine the electromagnetic characteristics of the motor from the input parameters of the simulation program. In the present publication we deal with the determination of the dynamic characteristics of the motor (the moment of inertia of the rotor, bearing and brush resistance torques) experimentally. Knowing the above mentioned electromagnetic and dynamic characteristics, we can carry out the simulation of the motor and the results of the simulation can be compared to the results of the test measurements.