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Re-design of steering servo-actuators for Car4 experimental robot
Vespalec, Tomáš ; Hadaš, Zdeněk (referee) ; Vejlupek, Josef (advisor)
This thesis deals with the development and design of the wheels mechanism in an experimental vehicle Car4. During this work, we introduce the vehicle axle load calculation, with components and systems, allowing linear and rotational motion, and different design proposals for the application of these systems in the vehicle. The result of this work will be a new mechanism for the wheels of the experimental vehicle Car4.
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Car4 vehicle remote control enhancement
Nejedlík, Tomáš ; Lamberský, Vojtěch (referee) ; Vejlupek, Josef (advisor)
This work deals with adding the LCD display to the remote control and its programming. At the introduction, we describe available data that we could get from the on-board sensors. Then we describe in detail how are the data transmitted between vehicle and its remote control, how the data are processed and then displayed. Also the modifications performed on the on-board electronic wiring and battery charging are discussed and described.
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Visualization of 4WS and 4WD vehicle movement
Blechta, Martin ; Vejlupek, Josef (referee) ; Lamberský, Vojtěch (advisor)
The aim of the thesis is to develop a graphical interface for visualization of 4WS and 4WD vehicle movement defined by its mathematical model. The visualization allows testing of various dynamic and kinematic models. The visualization is controlled either with joystick or a program input. An algorithm for rear wheels steering in dependence on speed is created and validated with a computational simulation and an experiment. The mathematical model defining the vehicle movement is connected with the dSPACE system enabling real time control. The thesis evaluates advantages and disadvantages of using the MLIB library for communication between dSPACE system and MATLAB.
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Control of sliding window in passenger car
Keprt, Jaroslav ; Vejlupek, Josef (referee) ; Lamberský, Vojtěch (advisor)
This bachelor thesis deals with the installation of power electronics on the PCBdesign and control algorithm for the DC-motor function, which is part of the window motion control system for a passenger car. The paper describes the principles of function state machines that are easily programmed using Stateflow and implementation of control algorithm in the PIC microcontroller. The control program is designed in Simulink and Stateflow its superstructure using Kerhuel Toolbox.
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Gasoline generator for mobile robotic applications
Hrbáč, Zbyněk ; Lamberský, Vojtěch (referee) ; Vejlupek, Josef (advisor)
This bachelor’s thesis is focused on the construction of generator for mobile robotic applications. The first part provides a survey of power generators available on both the domestic and international markets. In the second part is an overview of applicable electrical machines in the generator mode. There is a description, principle of operation and specifics of each motor and a possible regulation of an output. The third part deals with the actual construction of a testing model. The BLDC (brushless DC) motor with output power of 660W was used as a generator.
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Na Javorce Cave - a new discovery in the Bohemian Karst (Czech Republic): unique example of relationships between hydrothermal and common karstification.
Dragoun, J. ; Žák, Karel ; Vejlupek, J. ; Filippi, Michal ; Novotný, J. ; Dobeš, J.
The Na Javorce Cave is located in the Bohemian Karst, Czech Republic, about 25 km SW of Prague. The cave was formed in vertically dipping layers of Lower Devonian limestone; it is 1,723 m long and 129 m deep, of which 9 m is permanently flooded. The cave is polygenetic, with several clearly separable evolutionary stages. Cavities discovered to date were mostly formed along the tectonic structures of two main systems. One of these systems is represented by vertical faults of generally N-S strike, which are frequently accompanied by vein hydrothermal calcite with crystal cavities. The second fault system is represented by moderately inclined west-dipping faults. Smaller tube-like passages of phreatic morphology connect the larger cavities. The fluid inclusion data obtained for calcite developed along both fault systems in combination with C and O stable isotope studies indicate that the hydrothermal calcite was deposited from moderately NaCl-type basinal fluids (0.5 to 8.7 wt. % NaCl equ
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