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Autonomous traction vehicle of a type AGV
Brauner, Jiří ; Urbánek, Michal (referee) ; Kašpárek, Jaroslav (advisor)
The thesis deals with the design of an autonomous traction vehicle of a type AGV, used to purvey material flow. The first part of the thesis contains a research on the autonomous trucks with similar concepts offered on the market. The second part contains the description of the design of the prototype truck. It includes the selection of the guiding and safety components as well as the design of the traction drive and the traction battery. Finally, a frame design with force calculation of the selected node is performed.
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Measuring the power of IC-engines
Adamec, Vojtěch ; Ramík, Pavel (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with topic measuring the power and the torque of internal combustion engines on chassis dynamometer. The aim of the thesis was to show advantages and disadvantages of different types of dynamometers, to make review of standards for measuring power on chassis dynamometer, effect of atmospheric conditions, resistances and slippage. Thesis also describes evolution, different designs of chassis dynamometers, effect of roller diameter to rolling resistance and deformation of tire, suitable types of dynamometers for chassis dynamometer, equipment of testing room, modes of operating and differences between static and dynamic power testing. In the end I have made prediction of incoming development devices of this type with regard to evolution of intelligent chassis control systems and electric vehicles.
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Rolling Resistance Coefficient of Tires
Hasala, Matěj ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
This bachelor thesis focuses on the rolling resistance coefficient of tyres both in terms of the factors that influence this coefficient and in terms of experimental methods for its determination. In the first part of the thesis, the key factors affecting the rolling resistance coefficient are discussed in detail. This is followed by a description of the methods used to measure rolling resistance in laboratory and real-world conditions. The thesis continues with an overview of typical rolling resistance coefficient values for tyres of different categories, which have been further divided into subcategories and compared with each other. The last part of the thesis is devoted to the principal design of a measuring device for rolling resistance measurement. The design takes the cost and capability of obtaining a certificate of roadworthiness into account. Specific measuring instruments and components needed for the homologation process were selected and price calculation of known parts was made.
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Autonomous traction vehicle of a type AGV
Brauner, Jiří ; Urbánek, Michal (referee) ; Kašpárek, Jaroslav (advisor)
The thesis deals with the design of an autonomous traction vehicle of a type AGV, used to purvey material flow. The first part of the thesis contains a research on the autonomous trucks with similar concepts offered on the market. The second part contains the description of the design of the prototype truck. It includes the selection of the guiding and safety components as well as the design of the traction drive and the traction battery. Finally, a frame design with force calculation of the selected node is performed.
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Measuring the power of IC-engines
Adamec, Vojtěch ; Ramík, Pavel (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with topic measuring the power and the torque of internal combustion engines on chassis dynamometer. The aim of the thesis was to show advantages and disadvantages of different types of dynamometers, to make review of standards for measuring power on chassis dynamometer, effect of atmospheric conditions, resistances and slippage. Thesis also describes evolution, different designs of chassis dynamometers, effect of roller diameter to rolling resistance and deformation of tire, suitable types of dynamometers for chassis dynamometer, equipment of testing room, modes of operating and differences between static and dynamic power testing. In the end I have made prediction of incoming development devices of this type with regard to evolution of intelligent chassis control systems and electric vehicles.
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Analýza jízdních odporů osobního automobilu
Doležal, Ondřej
The thesis is devoted to the analysis of road resistances of a car. The first part deals with the theory of individual road resistance which counteracts the movement of the car. The chapters are given the formula for calculating individual road resistance and in the end is mentioned relationship of total road resistance. The second part is focused on the construction of tires, their signs and detailed description dimensions. This section also describes a tire according to the shapes of designs, their type and how to properly store them. The next part explains the theory of rolling the vehicle wheel according to the type of pads. The penultimate section describes the methodology for measuring the road resistance in real traffic. The conclusion describes experimental measurements of passive losses car at various inflation pressures made on vehicle testing institute of technology and automobile traffic. In this passage it is also a graphical and verbal evaluation of practical measurement.
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