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Electric drives in commercial vehicles and buses
Bahenský, Štěpán ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
This bachelor thesis focuses on electric and hybrid powertrains, which are used in utility vehicles and buses. According to this bachelor thesis is divided into two main parts. The first part deals with pure electric drives and its basic components. The subchapters describe various types of engines that are commonly used, but also the features and technologies of batteries. The second part deals with hybrid technologies, division according to the arrangement of components in vehicles, advantages and disadvantages of these solutions. Attention is also paid to the possibilities of battery systems. At the end of both parts, there are examples of commercial vehicles and buses with appropriate motorization, their comparison with competing models and a list of chosen technical parameters. The final chapter summarizes the current direction of the market and its further possible development in the future.
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Electric drives in commercial vehicles and buses
Bahenský, Štěpán ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
This bachelor thesis focuses on electric and hybrid powertrains, which are used in utility vehicles and buses. According to this bachelor thesis is divided into two main parts. The first part deals with pure electric drives and its basic components. The subchapters describe various types of engines that are commonly used, but also the features and technologies of batteries. The second part deals with hybrid technologies, division according to the arrangement of components in vehicles, advantages and disadvantages of these solutions. Attention is also paid to the possibilities of battery systems. At the end of both parts, there are examples of commercial vehicles and buses with appropriate motorization, their comparison with competing models and a list of chosen technical parameters. The final chapter summarizes the current direction of the market and its further possible development in the future.
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Operations research methods in companies
Medřická, Iveta ; Kvasnička, Roman (advisor) ; Dömeová, Ludmila (referee)
The thesis analyzes the commercial vehicle selection for the company Autoservis K through specific methods of operational research. The first part literature review where is described history and distribution operations research. The basic part of theoretical review is detailed description of multi criteria decision making because this discipline will be used in the practical part.
Practical part describes the criteria for the commercial vehicle chosen. Subsequently the aspiration levels are set up and insufficient alternative are eliminate. To determination of the criterion weights are based on Saaty paired comparison method (Saaty matrix). For final decision of compromise alternative is applied the basic variants method. In conclusion, the best alternative is selected. This alternative is recommended to buy the company.
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Injection Systems of Commercial Vehicles
Cajzl, Štěpán ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This thesis summarizes information about injection systems used in commercial vehicles. Includes an overview of different types of injection systems, their differences in structure, function description and their pros and cons. The following is a list of the world's leading automobile manufacturers of commercial vehicles, indicating the injection system on the engines. Finally, a comparison of different systems.
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