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Sensors and Actuators for Combustion Engines
Prouza, Jiří ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
This bachelor thesis is concerned with a summary of the most important sensors and control members which are used for combustion engine. There is a description of the construction and the principle of function of each sensor and member in this thesis. The first part of this thesis is concerned with sensors, which scan a condition and a course of activities in an engine, transform them to a signal and afterwards send them to the control unit, so it could process them. In the second part of this thesis there is a description of control members which process information from the control unit and afterwards transform them to a mechanical movement.
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Programmable ignition system for spark-ignition engine
Friedel, Daniel ; Kubíček, Michal (referee) ; Tošovský, Petr (advisor)
This thesis is concerned with design of programmable capacitive ignition, powered from board grid. Universality of the system, especially possibility to change values of timing of early spark via changes of programme in microcontroller was taken as major goal. Microcontroller is used as the operative element of ignition. Commonly used methods for sensing of engine speed and managing of ignition are defined and explained at the begining of the thesis. Also is presented realisation of hardware and software part and draw up the methodology calibration of the speed sensor. The ignition is designed to avoid the need to intervene in the high voltage ignition system.
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Engine Motormanagement Software
Huška, Lukáš ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
This master thesis deals with ignition systems which are used in cars vehicles with gas engines and also with setting of the best moment of ignition of gasoline-air mixture in cylinders of engine. Ways of gas injection at diesel engines and their control systems are also described in this thesis. Next chapter deals with control unit and describes main actions which are necessary for today’s motor vehicles. As illustration is used example of succession of actions which are necessary for calculation and setting regular value of pre-ignition. At the end is shown animation, which can be used for practice lessons in a subject Automobile Electric and Electronic Systems as a example. It will simplify understanding of described activities which are all accomplished by central control unit. For purposes of laboratory lessons is in this thesis also discussed measuring of engine performance with changes of parameter of central control unit.
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Production technology for an ignition stator body of the Jawa Pionýr motorcycle
Zeman, Petr ; Dvořák, Jaromír (referee) ; Sliwková, Petra (advisor)
The Jawa 50 motorcycles, produced in several models between 1958 and 1982, were equipped with several types of ignitions. From the current point of view, they are not satisfactory. The bachelor´s thesis describes the original designs, the commercial and amateur modifications of the ignition and its advantages and disadvantages, and deals with the innovative design and variants of mounting by individual coils. The work further deals with production of the ignition body by choosing a semi-finished product, machines and tools and compilation of a technological procedure and drawing documentation.
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Vliv předstihu zážehu na konečné složení spalin
Benáček, Richard
The thesis deals with issues of the internal combustion engines, particularly the influence of ignition time on the parameters of petrol engine. The aim of this study was to determine the influence of the nature of the combustion products on the ignition time. The measurement took place at the Brno engine testing room of ABC Company, a private venture developing turbo-chargers. The measured values were then processed following a beforehand established methodology. The results presented in the following show the influence of ignition time on the production of combustion products and power parameters of petrol engine. This way the results allow optimization according to operational requirements.
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Sensors and Actuators for Combustion Engines
Prouza, Jiří ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
This bachelor thesis is concerned with a summary of the most important sensors and control members which are used for combustion engine. There is a description of the construction and the principle of function of each sensor and member in this thesis. The first part of this thesis is concerned with sensors, which scan a condition and a course of activities in an engine, transform them to a signal and afterwards send them to the control unit, so it could process them. In the second part of this thesis there is a description of control members which process information from the control unit and afterwards transform them to a mechanical movement.
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Electronic Ignition Unit for Combustion Engine
Čmelík, Matouš ; Knobloch, Jan (referee) ; Červinka, Dalibor (advisor)
Thesis deals with electronic ignition for a two-cylinder two-stroke engines. In the thesis is described the existing ignition system. In the thesis are described measurement options of the position ot the engine crankshaft. The ignition system is designed mainly for motor JAWA, CZ and motor Trabant. The design is focused on reliability of entire circuit. The main advantage of the entire proposed design is possibility to adjustable ignition curve, depending on several external parameters such as speed or temperature of the engine. The proposed ignition has been tested in vehicle Velorex.
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Systémy zapalování zážehových motorů
Sikora, Jakub
Ignition process of fuel-air mixture has a large degree of combustion process in the petrol engine. It is necessary to control it , change the moment of ignition due to the conditions in which the engine operates . The ignition have to take into account all aspects of operation of the combustion engine and have to evaluate the right time to perform ignition of the mixture . It has great effect on the performance of the internal combustion engine and its efficiency. The right moment of ignition affects the composition of the flue gas leaving the combustion process. This work summarizes the probability of ignition of the mixture and the possibility of controlling the proper moment of ignition. There are described basic parts of the current ignition, differences and improvements. Also there are described the gradual development of the mechanical operation of the ignition and ignition time change due to traffic conditions to modern methods of regulation by electronic control units collect informations by electronic sensors. The conclusion is devoted to the modern way of igniting the mixture without initiating an electric discharge. There ignited fuel-air mixture be caused an increase in temperature due to its compression in the combustion chamber, called the HCCI.
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Fuel Injection Analysis
Schnabl, Jan ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
The ignition and injection system in any form are an integral part of each car. The development of these systems goes hand in hand with the development of the automobile and his growing industry. Since the nineteenth century to the present occurred in this sector signifcant progress. This thesis is focused primarily on the description of the two systems and their partiton. The development has been recorded from the oldest systems to the newest systems.
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