Search

Search Results

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

  48-52

  Nemes Dániel

  Sándor Hajdu

  Views:

  265

  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.

   

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

  1-23

  Tamás Németh

  László Kovács

  Views:

  501

  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.

• The Electric Vehicle Penetration in Hungary

  551-562

  Zoltán Tóth

  Views:

  1329

  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:

  202

  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.

• Investigation of the Resistance Force Acting on a Sailing Craft in the Case of a Change of Draft Caused by a Change of Powertrain Using Numerical CFD Simulations

  30-35

  Péter Ficzere

  Emese Lévai

  Views:

  231

  Nowdays In the case of recreational craft, interfering with motor drive solutions is a common workflow due to increasingly strict rules for environmental reasons. When switching from an internal combustion engine to an electric engine, the change in draft varies from boat to boat, but it can be said in all cases that as the mass changes, so does the draft. Because of this, the magnitude of the resistance force acting on the ship also varies. In this paper, we examine, through a specific example, the benefits of a change in dive caused by weight gain at different travel speeds.