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Item Design and implementation of an alternative Rotax 915is engine management system(University of Žilina, 2023) Psárska, Vanesa Viktória; Čerňan, JozefThe content of this article is design and implementation of an alternative Rotax 915is engine management system. In my research, I worked with a wide-spectrum control unit ECU MASTER designed for the optimization of the injection time of spark-ignition engines and also the control of the ignition advance taking into account several sensors of engine input parameters. The article was created as part of research into the issue of optimal control of piston engines. Current methods of controlling engines and their systems, in principle, allow very precise control of important systems of modern piston engines, especially with regard to the ignition and fuel system. The inclusion of microprocessor units with multiple options for input parameters allow the control unit to take into account even less important parameters, which, however, help the control unit to keep the engine running smoothly while maintaining high combustion efficiency. The elaborated design of a possible alternative engine control system is subsequently connected with the practical realization of this control system. The result of the research is the design of the control system of the Rotax 915is engine and the subsequent practical production and adjustment of the control unit under the name ECU MASTER, which verifies the universal applicability of such a unit for various combustion engines.Item Modification possibilities of automotive power plant for aviation purposes: fuel system and turbocharger system(University of Zilina, 2021) Pukač, Andrej; Čerňan, JozefThe objective of this article is to develop and demonstrate modification of automotive engine for aviation purposes. Automotive engine in aircraft has its pros and cons, but It can be good economical alternative to power plants such as Rotax engines which can be expensive, especially in Ultralight category where the rules of certification are different than for CS-LSA or CS-23 category aircraft. In first part I analyse actual state of real engine and describe operational problems, which shall be improved for better operation in aircraft. In second part I demonstrate practical solutions of turbocharger system and fuel system. In these systems I tried to use the most modern technologies which however will be reliable enough for aviation use, where the safety is priority number one.