Levente Botond KOCSIS


31-82 CONTRIBUȚII LA CERCETAREA EXPERIMENTALĂ A FUNCȚIONALITĂȚII MODULULUI ELECTRONIC DIESEL CONTROL (EDC) ÎN RAPORT CU ALIMENTAREA DE LA MOTORUL N47 DE LA AUTOMOBILUL BMW 320D (E90)

Contributions to the experimental research of ELECTRONIC DIESEL CONTROL (EDC) MODULe operation in relation with supply of the n47 engine from BMW 320d (e90) automobile

 

The present scientific paper analyzes through latest technologies in the field the operation parameters obtained in practical measurements. There are few detailed studies related to the problem of the electronic diesel control operating parameters of the N47 engine in the model E90, also known as BMW 320d on the available international data bases. There are many such vehicles on the roads in EU, and USA. The electronic diesel control module has a significant influence on the eco-performances (fuel efficiency and carbon-foot-print). Testing the electronic control systems on BMW diesel engines offers solutions and important ideas for optimizing their environmental pollution and fuel savings, while the operation will not be influenced. This paper is developed by testing the electronic diesel control system in order to gain an insight in its operation. The actual values are captured, close analyzed and interpreted.

 

Keywords: BMW, Diesel, E90, electronic, N47

Cuvinte cheie: BMW, Diesel, E90, electronic,  N47

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31-70 CONTRIBUȚII LA CERCETAREA EXPERIMENTALĂ A PARAMETRILOR SISTEMULUI DE ALIMENTARE PRIN INJECȚIE DE LA MOTORUL 3.0i AL AUTOMOBILULUI BMW X5

contributions to the EXPERIMENTAL RESEARCH OF INJECTION FUEL SUPPLY SYSTEM FROM 3.0i ENGINE OF BMW X 5 ROAD VEHICLES

 

This scientific article shows the results of multiple experimental tests and researches made on the basis of fuel injection process during different operating regimes. Measured parameters are in this case engine speed, fuel consumption, injection timing and engine temperature.

The main objective of these tests is to determine how fuel consumption is influenced by engine speed and engine coolant temperature if the vehicle is operating in neutral gear that means the engine has no load on the crankshaft. In this case the engine speed will be correlated with the accelerating pedal position. The road vehicle on which the tests will be conducted is BMW X5 3.0i model years 2002. There aren’t any detailed studies made on this model. It is a well-known that a considerable number of such vehicles are registered in our country. Besides this body type, BMW Factory equipped other vehicles with this engine.

The experimental tests offer engineers a better understanding of injection process and fuel economy in the case of conventional fuel supply systems. The experimental data are summarized and accurately analyzed and represented.

 

Keywords: automotive, BMW, consumption, engine, injection

Cuvinte-cheie: automobile, BMW, consum, motor, Injecţie

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31-65 ANALIZA ÎMBUNĂTĂȚIRII CONSUMULUI DE COMBUSTIBIL A UNUI MAI PRIN DEZACTIVARE DE CILINDRI

Fuel consumption improvement of an IC

engine by cylinder deactivation

 

The paper aims to analyse the fuel consumption gain of an IC engine equipped with cylinder deactivation technology, through software simulations. Data sets obtained with AVL BOOST simulation software were introduced in AVL CRUISE to run a NEDC cycle to demonstrate the feasibility of cylinder deactivation technology. Simulations were run separately for the urban cycle and then for extra-urban cycle to see what is the technology best suited for.

 

Keywords: fuel consumption, cylinder deactivation, simulation

Cuvinte cheie: consum combustibil, dezactivare de cilindri, simulare

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31-55 EFICIENȚA UNUI SISTEM TERMO SOLAR ÎN CONTEXTUL ECONOMIC ACTUAL. CAZ PARTICULAR

ECONOMIC EFFICIENCY OF A THERMOSOLAR SYSTEM.

A CASE STUDY

 

Integration costs of a thermal solar system for domestic hot water preparation are a decisive factor regarding the implementation of the system. Integration cost depends on the size, capacity, complexity and the type of the thermal solar system. The payback period is directly influenced by the costs of conventional energy prices. Thus, this paper estimates the economic efficiency or the payback period of a thermal solar system for a household with three persons. The thermal solar system is chosen based on the three-year average monthly water consumption. The payback period is estimated based on the last three year monthly average costs of natural gas consumption.

 

Keywords: thermal solar system, integration costs, economic efficiency, solar thermal collector, solar energy

Cuvinte cheie: sistem termo solar, costuri de instalare, eficiență economică, captator termo solar, energie solară

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30-45 CERCETAREA PARAMETRILOR SISTEMULUI DE ALIMENTARE PRIN INJECȚIE A MOTORULUI DE LA AUTOMOBILUL BMW 320D

RESEARCH OF FUEL INJECTION SYSTEM
PARAMETERS FOR THE ENGINE OF BMW 320D
The present article makes an analyze through experimental research of
the parameters obtained from practical measurements related to fuel injection
supply, consumption, operating regime and engine speed, in different situations
and accelerator positions, with sport oriented vehicle of the type BMW series 3
during the operating process. There aren’t such explicitly developed studies
concerning the injection parameters of the E90 engine model of BMW 320d on the
national level. It is known that there are many such vehicles registered in our
country, there being a strong will to know their performances and operational status.
The injection and combustion besides the supercharging have a major influence
upon the engine’s dynamic performances, fuel economy and pollution. Testing and
studying the injection and air-fuel supply systems on BMW diesel engines may offer
engineering solutions and optimizing ideas in order to improve their environmental
impact and fuel economy, while the engine dynamic behavior will be little affected. In
this work it is developed a program for testing such a dynamic engine and for
collecting the injection and other systems parameters in order to facilitate their
operational understanding. The data is managed and accurately inspected and
interpreted.
Keywords: BMW, Consumption, Engine, Injection, Spray
Cuvinte cheie: BMW, consum de combustibil, motor, injecție, pulverizare

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26-45 ANALIZA POSIBILITĂȚILOR DE ÎMBUNĂTĂȚIRE A PARAMETRILOR DE PERFORMANȚĂ A UNUI MAS SUPRAALIMENTAT PRIN MODIFICAREA FAZELOR DE DISTRIBUȚIE

ANALYZING THE POSSIBILITIES OF PERFORMANCE IMPROVEMENT OF A CHARGED SI ENGINE BY MODIFYING IT’S DISTRIBUTION PHASES
This paper aims to analyze the possibilities through simulation of performance parameters improvement (mean effective pressure, boost pressure, exhaust flow and engine speed increase to sudden load change) of an engine to its basic version. As simulation software, AVL BOOST was elected, which gives the required accuracy for transient simulations. Simulations compared the engine performance of the various possibilities of amending phase distribution compared to the basic version of the analysed engine. Keywords: performance, distribution phases, simulation, charged

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