National Repository of Grey Literature 21 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Mathematical model of the start of a racing vehicle on an unpaved surface
Čech, Tomáš ; Porteš, Petr (referee) ; Svída, David (advisor)
Tato práce popisuje proces návrhu diskrétního matematického modelu systému kontroly trakce v prostředí programu Simulink, pro rozjezd závodního prototypu třídy Super Buggy. Pravidla této závodní kategorie značně limitují prostředky, které je možné pro zmíněný řídící systém využít, a to hlavně v oblasti povolených senzorů. Aby systém kontroly trakce bylo možné navrhnout i s těmito omezeními, byl pro zmíněný závodní prototyp na míru vytvořen měřící systém, který byl následně využit pro sběr dat nutných k vytvoření virtuálního dvojčete závodního vozidla. To bylo, společně s na míru vytvořeným samostatným algoritmem, využito pro simulaci ideálního startu, kterého je vozidlo schopno dosáhnout. Na základě dat z této simulace byl vytvořen nový referenční model, podle kterého dokázal systém kontroly trakce regulovat vozidlo bez nutnosti využití zakázaných senzorů. Tento systém byl poté s využitím virtuálního vozidla testován, nejprve při akceleraci z místa, proti výsledkům dosažených při rozjezdu na plný plyn a několika dalších uměle vytvořených vstupních signálech na povrchu, pro který byl systém navržen. Dále byla testována nezávislost akcelerace vozidla, řízeného systémem kontroly trakce, na okmažiku přeřazení. Jako poslední byly zkoumány schopnosti fungování systému na površích s koeficienty tření jinými, než pro které byl systém navržen. V kapitole 13 a v závěru byla diskutována potenciální implementace navrženého systému, jeho celkový potenciál, nedostatky a možnosti pro další zlepšení a budoucí vývoj.
From a Dumb Boiler to a Smart One Using a Smart Socket
Mitura, Jacek ; Zemčík, Pavel (referee) ; Materna, Zdeněk (advisor)
Nowadays, the world of smart devices is growing very fast. Nevertheless, it remains difficult to acquire smart device for water heating applications. The usual reasons complicating this fact include the lack of the possibility of connection to the central control unit, or the need to replace the entire boiler with a new smart model. In both cases, the additional disadvantage is the higher price of such a solution. Therefore, the aim of this bachelor's thesis is to create a comprehensive and affordable solution, ensuring the conversion of an existing boiler to smart using a smart socket and a central server controlling the household. The solution uses a daily consumption forecast based on an exponential moving average to save electricity.
Comparison of Hybrid Powertrain Topologies in Daily Commuting Regime
Ušiak, Michal ; Štětina, Josef (referee) ; Vondrák, Adam (advisor)
The master’s thesis deals with modelling of various architectures of hybrid powertrains for three vehicle sizes in GT-SUITE and compares them in daily commuting operating mode. On top of making of the hybrid vehicle simulation models, control algorithms had to be created to manage the energy split between the internal combustion engine and the electric motor for each of the architectures. Routes to work and back were logged using the GPS and postprocessed to obtain the speed and the road grade profiles. Resulting data was used as an input in simulations of daily commuting. To compare all hybrid powertrain architectures, fuel economy and electricity consumption were evaluated for WLTP and daily commuting operating modes. Finally, the environmental impact of each topology was assessed based on an estimation of corresponding well-to-wheel emissions.
Modeling and Simulation of Mobile working machine Powertrain
Zavadinka, Peter ; Věchet, Stanislav (referee) ; Kriššak,, Peter (advisor)
Táto diplomová práca sa zaoberá vytvorením dynamického modelu mobilného pracovného stroja. Ciežom práce je vytvorenie blokového modelu pohonu štvorkolesového mobilného pracovného stroja. Model hydrostatického prevodu bol dodaný firmou Sauer-Danfoss. Model mobilného pracovného stroja bol vytvorený v programe MATLAB-Simulink. Dalšou časťou práce je výber typu riadenia hydrostatického prevodu a návrh riadiaceho algoritmu hydrostatického prevodu. Výstupom práce je blokový matematicko-fyzikálny model pohonu štvorkolesového mobilného pracovného stroja spolu s riadiacim algoritmom hydrostatického prevodu v prostredí MATLAB-Simulink.
Vehicle Semi-active SuspensionSystem
Salcburger, Martin ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
The aim of this diploma thesis is to design algorithms of semi-active suspension system for a quarter car model, compare their function with respect to ride comfort and drive safety. Consequently, setup control algorithms for using in the Adams software. The result of this thesis should be to determine the effect of semi-active suspension control system on vehicle behavior.
Drive model for EC motor elevator analysis
Javořík, Zdeněk ; Koláčný, Josef (referee) ; Vondruš, Jiří (advisor)
The master thesis encompasses the possibilities of position evaluation and drive control with the aid of SMI work enviroment. Furthermore the thesis is directed to create a program through a designed control algorithm. The work is realised on the elevator model with electronically commuted motor. An incremental scanner is used as the position sensor. The motor control unit is set up and programmed in the SmartMotorInterface software. In the next part, measurements with altered parameters are conducted. On the basis of these measurements the influence of parameters on the positioning process and its accuracy is evaluated. At the conclusion of the work, a design of laboratory task for educational purposes is created. The laboratory task is composed in such a way, that students would become familiar with the SMI work enviroment and would be able to practicaly test the setup of incremental position sensor and motor control with the aid of entered algorithm.
The Machine-technological Design of the Hydraulic Circuit of Laboratories of Vyšší odborná škola stavební in Vysoké Mýto
Hamouz, Vladimír ; Ing. Lubomír Kříž, Ph.D (referee) ; Žoužela, Michal (advisor)
Master’s thesis presents the machine - technological design of the hydraulic circuit of laboratory, which is part of project documentation. The main part’s of thesis are hydraulic circle and hydraulic measuring flume and control algorithm of pumping stations and visualization of control of hydraulic circuit to display.
Control and visualization of techlologic process via IPC
Buchta, Luděk ; Libor, Matys (referee) ; Dvořáček, Martin (advisor)
The aim of this bachelor’s thesis was to acquaint with techniques and technologies used in the control and visualization of technologic processes. The industrial PC, PLC and Automation Panels from the company B&R was used on control of the technologic process in laboratory E541. Designed and implemented control algorithm contains three discrete controllers. The standard OPC is used for communication. Visualization for control workplace is created in the Program Control Web. Visualizations for operator workstations are created in the program Automation Studio. These visualizations are used to transfer information from the technological process.
Control algorithm for aircraft stabilization
Novák, Pavel ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
Master’s thesis: "Design of the control algorithm for aircraft stabilization" summarizes aircraft aerodynamics knowledge, from which nonlinear mathematical model of the aircraft and propeller propulsion system are created. Design of the control algorithm for angle position stabilization (for longitudinal motion) and the control algorithm for “Flight Path Angle hold“ and “Flight Level Change” modes is also presented here. Designed control algorithms are tested within the simulation of the real atmosphere at the end of the thesis.
Equipment for long-term test of BLDC controller
Řihák, Roman ; Háze, Jiří (referee) ; Šteffan, Pavel (advisor)
This diploma thesis deals with the design and realization of equipment for long-term testing of the controller of brushless DC motors. In the theoretical part are mentioned principles and explanation of the function of various types of electric motors. The diploma thesis also deals with brushless motors, how they are controlled, types, constructed, etc. At the end of the first chapter there is a mention of thermoelectric phenomena. The second chapter describes the appropriate design of equipment for long-term testing from the block diagram to the construction itself. The third chapter deals with the implementation and function of the entire test system.

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