Transactions on Transport Sciences, 2012 (vol. 5), issue 1
Analysis of an Electric Vehicle with a BLDC PM Motor in the Wheel Body
K. Buhr, P. Voženílek
Transactions on Transport Sciences 2012, 5(1):1-10 | DOI: 10.2478/v10158-012-0001-8
The paper deals with the conception of the test bed for the permanent magnet brushless DC motor (PM BLDC) with parameter verification. The tested motor is destined for installation in the wheel body. The test bed HW and SW equipment is described in the paper. This equipment enables the automated measuring of load-rise, temperature-rise, and retardation tests. The test's aim is to obtain attested specifications for a vehicle dimensioning methodology design based on the knowledge of its dynamic behaviour and the track grading, and eventually of its energy consumption, action radius, etc.
A Contribution to the Economical and Ecological Assessment of Electromobiles
Š. Čorňák, P. Braun, V. Neumann
Transactions on Transport Sciences 2012, 5(1):11-20 | DOI: 10.2478/v10158-012-0002-7
Six vehicles of the same class (3 with combustion engines, 3 electromobiles) were compared and the results are that the total life cycle costs (LCC) of the electromobiles are distinctively lower. The relation between fuel usage and carbon dioxide production (CO2) is shown in the second part of the paper. The vehicles with the combustion engine meet maximum carbon dioxide production (CO2) outline requirements (the requirement of the EU committee is 120 g/km) with a maximum fuel usage of 5.1 l/100 km. Electromobiles meet maximum carbon dioxide production (CO2) outline requirements with a maximum fuel usage of 4.5 l/100 km.
Influence of Mental Load on Driver's Attention
R. Mouček, T. Řondík
Transactions on Transport Sciences 2012, 5(1):21-26 | DOI: 10.2478/v10158-012-0003-6
This paper deals with influence of mental load on drivers' attention. EEG (electroencephalography) and ERP (event related potentials) techniques are used for investigation of the level of the drivers' attention. A short overview of experiments dealing with drivers' attention is given and the ERP technique and the P3 component are described. General assumptions related to P3 amplitude and P3 latency are introduced. Then the experimental design and the course of the experiment are described. The resulting EEG/ERP data are analyzed and their interpretation is provided.
Control Problems in Electric and Hybrid Vehicles
Transactions on Transport Sciences 2012, 5(1):27-36 | DOI: 10.2478/v10158-012-0004-5
The new method of vehicle propulsion for hybrid and electric vehicles involves solving new problems with their control, primarily the control of electrical propulsion units. The new approach requires energy management for the hybrid vehicles. Specific control is necessary for battery management. Using electrical batteries in vehicles presents a multidisciplinary problem in cooperation of great amount of batteries and the electrical grid, the control vehicle to grid (V2G) systems.
Hybrid Two-stroke Motor Drive
Z. Bureš, M. Šula, V. Přenosil
Transactions on Transport Sciences 2012, 5(1):37-44 | DOI: 10.2478/v10158-012-0005-4
The article describes the implemented and tested K.E.R.S. (Kinetic Energy Recuperation System) system. The system uses braking energy to charge the operative source of energy. The captured energy is used to enhance energy for the subsequent acceleration of the combustion engine.
Vehicle Energy Management System
Z. Bureš, M. Šula, V. Přenosil
Transactions on Transport Sciences 2012, 5(1):45-52 | DOI: 10.2478/v10158-012-0006-3
The paper deals with power management systems in a vehicle comprising of an internal combustion engine which is connected via a gearbox with a clutch and transmission to a main generator of electricity. The battery and supercapacitors, as the central independent power source, are connected via the control module and via a bidirectional communication bus to the vehicle state evaluation unit. Both modes charging and discharging of the battery and supercapacitors together with alternator control is the most affected by the evaluation unit.
Technical Notes on Project of the Database of Czech Transportation
J. Tichý, M. Honců
Transactions on Transport Sciences 2012, 5(1):53-54
A centralized database of transport data is missing in the Czech Republic. This paper points to an example of the budget of the State Fund for Transport Infrastructure that is necessary to create such a database of data which impacts the economy of the whole system and to gradually convince state institutions, regions, municipalities, transporters and other involved parties to support this project with their opinions and provided data.