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Development of transmission
Kocman, František ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This bachelor thesis is focused on current trends of passenger car transmissions. The goal was to compile an overview of individual concepts with regards to the current trends. For each concept, there is a description of its construction and principle. The practical part is focused on the calculation of the basic parameters of a dual clutch transmission.
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Design of direct shift gearbox
Kocman, František ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This thesis deals with the conceptual design of a dual clutch gearbox and with inspection of selected parts of this gearbox. The introductory part is devoted to their theoretical description and subsequent analysis of current dual clutch gearboxes. Then the work focuses on the conceptual design itself, which is based on the chosen vehicle. On the basis of these inputs, the gearbox gear ratios are chosen, which have impact on the economy of the vehicle operation. With respect to the installation area, its conceptual layout is then proposed. Furthermore, this thesis deals with the basic structural design and calculations of selected functional parts of the transmission. The last part of this thesis is devoted to the inspection of selected structural nodes using the finite element method. This whole thesis describes the individual steps of the basic conceptual design of the dual clutch gearbox and the design of their basic components.
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Methodology for Determining the Dynamic characteristics of a Turbocharger Pneumatic Actuator
Hálek, Dominik ; Kocman, František (referee) ; Novotný, Pavel (advisor)
This diploma thesis is dealing with design of Methodology for Determining the Dynamic characteristics of a Turbocharger Pneumatic Actuator. Pneumatic Actuator is used as a control mechanism in turbocharged internal combustion engines, which affects the engine performance, efficiency and fuel consumption. Main aim of this thesis is to develop a systematic comprehensive procedure for collecting and analysing measured data of dynamic behaviour of this actuator. In the first part of the thesis, an experimental method is designed and implemented to measure the data required to analyse the dynamics of the actuator at different variations of pressure, displacement and frequency settings. A measurement chain with appropriate sensors is built and a software environment for data acquisition and storage is developed. In the second part of the thesis, the experimentally measured data are evaluated using mathematical model in Matlab software environment to extract stiffness and damping values from measured data and determine their dependence on frequency, pressure and displacement.
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Aerodynamics of an electric vehicle and a vehicle with combustion engine
Mikula, Marek ; Kocman, František (referee) ; Vondruš, Jan (advisor)
This bachelor thesis focuses on describing the differences in aerodynamics between electric and internal combustion engine cars. For the same vehicle model lines and different powertrains, a survey of today's market has been conducted and the thesis has been complemented with the current topic of the implementation of active aerodynamic features and systems for vehicles in different price ranges with different aerodynamic requirements.
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Design of direct shift gearbox
Kocman, František ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This thesis deals with the conceptual design of a dual clutch gearbox and with inspection of selected parts of this gearbox. The introductory part is devoted to their theoretical description and subsequent analysis of current dual clutch gearboxes. Then the work focuses on the conceptual design itself, which is based on the chosen vehicle. On the basis of these inputs, the gearbox gear ratios are chosen, which have impact on the economy of the vehicle operation. With respect to the installation area, its conceptual layout is then proposed. Furthermore, this thesis deals with the basic structural design and calculations of selected functional parts of the transmission. The last part of this thesis is devoted to the inspection of selected structural nodes using the finite element method. This whole thesis describes the individual steps of the basic conceptual design of the dual clutch gearbox and the design of their basic components.
|
|
|
Development of transmission
Kocman, František ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This bachelor thesis is focused on current trends of passenger car transmissions. The goal was to compile an overview of individual concepts with regards to the current trends. For each concept, there is a description of its construction and principle. The practical part is focused on the calculation of the basic parameters of a dual clutch transmission.
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