The thesis deals with the indication of combustion pressures of ignition engines. Introduction is devoted to thermodynamics of combustion engines and their diagrams. The following section describes the methods for measuring the combustion pressures of a spark ignition engine. This chapter describes three basic methods of measurement, the most described of which are piezoelectric sensors. The next part is devoted to the design of the measuring chain and to the description of the material used, which was used for the measurement on the engine under test. The main goal of the thesis was to evaluate the results obtained by measuring at the engine testing center of Mendel Uni-versity in Brno. The data were tabulated and graphically evaluated and subsequently described. At the end of the thesis everything is evaluated and the results summarized.

The main aim of this diploma thesis is to design two different types of air throttles in the intake manifold and compare their influence on a loss of dynamics of the flow of drawn air. The main purpose is to compare the mass flow for wholly opened air throttle. It deals with creating CDF model of intake manifold by using 3D scanner Atos and software Pro/Engineer WF5. During the work, the results of the CFD analysis were used for a real testing.

This master’s thesis deals with the design of the throttle body of the intake manifold of a spark-ignition engine with regards to minimizing throttle loses at full engine load. The first part of this thesis focuses on the elements of intake tract structure on contemporary combustion engine including their design solutions and the theory of flow. The thesis also describes the creation of the 3-D CAD model of intake manifold with a throttle body and the description of the CFD flow simulation with the evaluation of resul.

This diploma thesis deals with the analysis of the intake system of a turbocharged Formu-la Student combustion engine. The thesis contains a brief description of the intake system of a passenger vehicle and the intake system of a Formula Student vehicle. Part of the work is the design of an electronic throttle. The type of throttle valve was selected based on a research of individual types used nowadays. Furthermore, simulations of the flow of the air through the intake system are performed and the results are used in the design cal-culations.

Diplomová práce je zaměřena na konstrukční návrh sacího potrubí pro vůz Formula Student. Pro pohon vozu je použit jednoválcový atmosférický benzinový motor Husaberg FE 570. Sací potrubí je navrhováno tak, aby bylo v souladu s pravidly Formula Student. Pro zvýšení plnící účinnosti sací potrubí využívá resonančního efektu. Délky sacího potrubí byly spočítány v software Lotus Engine simulation.

This work deals with identification of systems with high dry friction and/or return spring. Identified models are optimised by Parameter Estimation toolbox. Because friction and return spring have negative influence in control systems, models are used as compensators in control loop. Also effect of parameters variation is investigated in this paper.

The aim of this master’s thesis was to analyze the contemporary electronic throttles and the requirements imposed on them. Then to build the mathematical model, identify parameters of the given electronic throttle, proceed the verification and on its basis to build the simulation model. There were selected suitable control and high power components to control the electronic throttle. Due to the knowledge of these parameters the simulation model was extended. For this extended simulation model was designed the position cascade controller with speed and current control loop. Using the designed controller the implementation of the electronic throttle control and the available high power and control module was realized.