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Engine Motormanagement Software
Kuda, Roman ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
Increasing requirements and claims on running of motor vehicles contributed to development of new systems on the mixture preparations of fuel and ignition. Cardinal causes, which led to the very intensive research and later introduction of superior systems of injection and ignition, where fulfilment of stricter emission limits, lower fuel consumption at prezent engine-power increase and engine torque. The conception of the classical gas-engine was not changed over the past few years. The supervising elements as ignition and injestions of engines are continuously changed.
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Multi-point Injection
Slavík, Tomáš ; Svída, David (referee) ; Dundálek, Radim (advisor)
The main objective of this Bachelor degree thesis is to describe and to bring closer the function of the multiple fuel injection system (nebo the function of fuel injections with multiple sets) in spark-ignition combustion engines, as well as to create a summary of individual components in fuel injection frameworks together with describing their functions and comparing them with other alternatives in fuel systems. In the conclusion, an elaboration on development trends in combustion engines will be provided.
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Engine Motormanagement Software
Kopecký, Ivo ; Vítek, Ondřej (referee) ; Hájek, Vítězslav (advisor)
Fuel injection is a means of metering fuel into an internal combustion engine. In modern automotive applications, fuel metering is one of several functions performed by an "engine management system". A fuel injection system is designed and calibrated specifically for the type(s) of fuel it will handle: gasoline (petrol), Autogas LPG (also known as propane), ethanol, methanol, methane (natural gas), hydrogen or diesel. The majority of fuel injection systems are for gasoline or diesel applications. With the advent of electronic fuel injection, the diesel and gasoline hardware has become quite similar. During the last twenty years a preparation of a fuel mixture and the way of ignition in engine segment have changed the most. Instead of a carburettor it is being used the unit, which prepare fuel mixture according to a status of a car on the road e.g. change of pressure, temperature or ratio of a fuel and air.
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Serial and Parallel Diagnostics of Vehicle Engine Control Units
Čoček, Jan ; Svída, David (referee) ; Beran, Martin (advisor)
The thesis considers diagnosis of motor vehicles from the past until the present day, focusing especially on the engine of internal combustion engines. In its sections briefly describes the function of the system and then analyzed how to diagnose faults. The charts are presented symptoms and denouement, using measuring techniques. The conclusion describes the OBD systems, the most commonly used automotive bus and a summary of several major measuring devices used in automotive diagnostics.
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Injection System with Pressure Accumulator for Commercial Powertrain Units
Suchánek, David ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
The present work deals with a common-rail fuel injection system for powertrain applications. As part of the solution of the thesis, a comprehensive analysis of the injection system has been carried out with an indication of the principle and function of the necessary components, including demonstrations on specific vehicles and an outline of future developments. The injection system can be divided into 3 parts: low pressure, high pressure and control. The low-pressure section describes the fuel filter and feed pump. Within the high-pressure part, the components which are the injector, the high-pressure pump and the fuel rail are given in context. The control section then presents the control unit, sensors and actuators necessary to control the pressure and quantity of fuel. In order to give a comprehensive overview of the common-rail fuel injection system, the common-rail system parameters were measured and evaluated on a specific power unit using diagnostic equipment. The measurements verified the maximum pressure declared by the vehicle manufacturer, while showing the fuel pressure waveform in the fuel rail in different engine operating modes. style.
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Fuel consuptiom monitor for car gas-engine
Klásek, Tomáš ; Roubal, Zdeněk (referee) ; Drexler, Petr (advisor)
This work introduces readers into the principles of fuel injection and injection types in the modern combustion engines. The basic focus of this work is in the description of how the modern fuel injectors work. Then we describe the most important car sensors for our task. In the next part we will try to determine the normalized immediate fuel consumption by acquiring the data from the automobile. Finally, we will process the data by using an electronical platform and display them on a suitable indicator.
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Engine Motormanagement Software
Kuda, Roman ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
Increasing requirements and claims on running of motor vehicles contributed to development of new systems on the mixture preparations of fuel and ignition. Cardinal causes, which led to the very intensive research and later introduction of superior systems of injection and ignition, where fulfilment of stricter emission limits, lower fuel consumption at prezent engine-power increase and engine torque. The conception of the classical gas-engine was not changed over the past few years. The supervising elements as ignition and injestions of engines are continuously changed.
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