Influences of engine faults on pollutant emission

Toma, Marius; Micu, Dan; Andreescu, Cristian

doi:10.1016/j.promfg.2019.02.249

Cited by 8 publications

(4 citation statements)

References 10 publications

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“…The third group consists of components whose failure results in a loss of engine power. This is also evidenced by related research, in which the diagnosis of the same components resulted in results that were comparable to the results of our research [60,61]. We have included in this group components, such as crankshaft position sensor, intake manifold pressure sensor, injector, ignition coil.…”

Section: Discussionsupporting

confidence: 85%

Influence of Engine Electronic Management Fault Simulation on Vehicle Operation

Šarkan

Loman

Synák

et al. 2022

Sensors

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The preparation of the fuel mixture of a conventional internal combustion engine is currently controlled exclusively electronically. In order for the electrical management of an internal combustion engine to function properly, it is necessary that all its electronic components work flawlessly and fulfill their role. Failure of these electronic components can cause incorrect fuel mixture preparation and also affect driving safety. Due to the effect of individual failures, it has a negative impact on road safety and also negatively affects other participants. The task of the research is to investigate the effect of the failure of electronic engine components on the selected operating characteristics of a vehicle. The purpose of this article is to specify the extent to which a failure of an electronic engine component may affect the operation of a road vehicle. Eight failures of electronic systems (sensors and actuators) were simulated on a specific vehicle, with a petrol internal combustion engine. Measurements were performed in laboratory conditions, the purpose of which was to quantify the change in the operating characteristics of the vehicle between the faulty and fault-free state. The vehicle performance parameters and the production of selected exhaust emission components were determined for selected vehicle operating characteristics. The results show that in the normal operation of vehicles, there are situations where a failure in the electronic system of the engine has a significant impact on its operating characteristics and, at the same time, some of these failures are not identifiable by the vehicle operator. The findings of the publication can be used in the drafting of legislation, in the field of production and operation of road vehicles, and also in the mathematical modeling of the production of gaseous emissions by road transport.

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Section: Discussionsupporting

confidence: 85%

Influence of Engine Electronic Management Fault Simulation on Vehicle Operation

Šarkan

Loman

Synák

et al. 2022

Sensors

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“…The basis for modelling the rotational speed adjuster operation was an assumption that both in case of the technically fit engine and in case of a defective engine the flow rate of the fuel mass should be supplied to the cylinders in such an amount so that the total indicated power of the cylinders of both the technically fit and defective engine are equal [12,30]. Another promising method developed in the world is the research of the relationship between the emission of toxic compounds and the technical condition of the engine [19,24].…”

Section: Development Of the Methodsmentioning

confidence: 99%

Method of evaluation of the technical condition of the diesel-electric unit

Zacharewicz

2019

Diagnostyka

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The article presents an innovative method of evaluating technical condition of marine diesel engines driving electric power generator. The presented method is based on measurements of the phase-to-phase voltage of the synchronous generator and on measurements of the acceleration of the injector needle. The basis for the method is an assumption that the shapes of the waveforms of the phase-to-phase voltage of the generator include information on fluctuations of the angular velocity of the engine crankshaft. Consequently, these fluctuations depend directly on the course of the working process occurring in the engine cylinders. The vibrating signal is used to synchronize the shapes of the voltage waveforms with the engine working process.Keywords: marine diesel engines, diagnostic, diesel-electric unit METODA OCENY STANU TECHNICZNEGO OKRĘTOWEGO ZESPOŁU SPALINOWO-ELEKTRYCZNEGO Streszczenie W artykule przedstawiono nowatorską metodę oceny stanu technicznego okrętowych tłokowych silników spalinowych o zapłonie samoczynnym napędzających prądnice. Prezentowana metoda bazuje na pomiarach napięcia międzyfazowego prądnicy synchronicznej oraz na pomiarze przyspieszeń iglicy wtryskiwacza. Podstawą metody jest założenie, że przebiegi napięcia międzyfazowego prądnicy zawierają informację o fluktuacjach prędkości kątowej wału korbowego silnika. Natomiast fluktuacje te zależą bezpośrednio od przebiegu procesu roboczego realizowanego w cylindrach silnika. Sygnał drganiowy wykorzystywany jest do synchronizacji przebiegów napięcia z cyklem roboczym silnika.Słowa kluczowe: Okrętowy tłokowy silnik spalinowy, diagnostyka, zespół spalinowo-elektryczny

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“…Existen fallas intempestivas que no son detectadas por el sistema de Diagnóstico a Bordo de segunda generación (OBD II), las cuales con el paso del tiempo disminuye las prestaciones del motor e incrementan el nivel de contaminación. Con el propósito de caracterizar los efectos que provocan, se recurre por ejemplo en (Toma et al, 2019) a incitar fallas en el sistema de alimentación sobre el inyector, provocando de esta forma el aumento considerable del nivel de emisiones.…”

Section: Introductionunclassified

Análisis termográfico de un motor de encendido provocado, inducido a fallas mediante la aplicación de diseño de experimentos (DoE)

et al. 2022

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La presente investigación tiene como objetivo realizar un análisis termográfico a un motor de encendido provocado, al inducirle fallas controladas no detectadas por el OBD II (Sistema de Diagnóstico a Bordo de Segunda Generación), mediante diseño de experimentos (DoE). Se aplica un diseño factorial completo de dos niveles y dos factores. La unidad experimental es un vehículo Hyundai Accent que se somete a ocho tratamientos en un banco dinamómetro. Los resultados muestran una variación de temperatura de 18.78 ℃ y NOx de 291 ppm al intervenir sobre la bujía, 18.98 ℃ y NOx de 20 ppm al incidir sobre el filtro de aire, y 55 ℃ y NOx de 25 ppm frente a un efecto combinado. Se concluye que la media cuadrática (RMS) de los datos presentes en una imagen térmica es la característica que mejor permite evaluar el efecto de los factores o fallas sobre el vehículo, al presentar un mejor ajuste y menor desviación estándar.

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Influences of engine faults on pollutant emission

Cited by 8 publications

References 10 publications

Influence of Engine Electronic Management Fault Simulation on Vehicle Operation

Influence of Engine Electronic Management Fault Simulation on Vehicle Operation

Method of evaluation of the technical condition of the diesel-electric unit

Análisis termográfico de un motor de encendido provocado, inducido a fallas mediante la aplicación de diseño de experimentos (DoE)

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