<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1390-0129</journal-id>
<journal-title><![CDATA[Revista Politécnica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Politéc. (Quito)]]></abbrev-journal-title>
<issn>1390-0129</issn>
<publisher>
<publisher-name><![CDATA[Escuela Politécnica Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-01292017000100049</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Determinación del Torque y Potencia de un Motor de Combustión Interna a Gasolina Mediante el Uso de Bujía con Sensor de Presión Adaptado y Aplicación de un Modelo Matemático]]></article-title>
<article-title xml:lang="en"><![CDATA[Determination of Torque and Power of a Gasoline Internal Combustion Engine by Using Spark with Pressure Sensor Adapted and Application of a Mathematical Model]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[Jairo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Vicente]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Escuela Politécnica Nacional Facultad de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>39</volume>
<numero>1</numero>
<fpage>49</fpage>
<lpage>57</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-01292017000100049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-01292017000100049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-01292017000100049&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La presente investigación está orientada a determinar de una manera alternativa el torque y potencia de un motor de encendido provocado (MEP). En primera instancia, mediante el protocolo basado en la norma INEM 960, el uso de la tarjeta electrónica DAQ USB 6008 y la programación en el Software Labview, se realiza la adquisición y procesamiento de señales efectuando diversas pruebas en el banco dinamométrico a tres vehículos de diferente categoría que representan los más vendidos en el país. Posteriormente se efectúa un análisis estadístico en el Software Minitab determinando que la cilindrada, la velocidad del vehículo y la potencia de la señal son las variables altamente significativas que representan una incidencia directa para el cálculo. Los resultados se vieron plasmados en la obtención de dos ecuaciones que rigen el comportamiento del torque y potencia para vehículos entre una cilindrada de 1,4 a 2,4 litros. Además, se presentan los diagramas de torque y potencia con carga máxima respecto a la velocidad del vehículo a diferentes alturas sobre el nivel del mar. Finalmente se realizan pruebas en carretera a distintas condiciones de manejo para comprobar la veracidad de los resultados, comparándolos también con los medidos por un banco dinamométrico, obteniendo un intervalo de confianza (IC) del 92% que demuestra que los mismos no exhiben una diferencia estadística altamente significativa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This investigation aims to determine through an alternative way the torque and power of a spark ignition engine. At first, the signals of three different vehicles, which are the best-selling cars in our country, were acquired and processed by developing several test in the dynamometer bench by using the protocol based on the INEM 960 norm, the use of the DAQ USB 6008 electronic card and the programming in the Labview Software. Subsequently, a statistical analysis is performed using the Minitab software in order to determine that the cylinder capacity, the vehicle speed and signal power are highly significant variables, which represent a direct incidence on the calculation. In the results, there were obtained two equations that govern the behavior of the torque and power for vehicles with a cylinder capacity of 1,4 to 2,4 liters. In addition, the maximum load diagrams of torque and power regarding the speed of the vehicle at different heights above sea level are presented. Finally, road test are performed at different driving conditions with the purpose of proving the veracity of the obtained results, which are also compared with the measured results in a dynamometer bench, obtaining a 92% confidence interval, which demonstrates that these ones do not exhibit a highly significant statistical difference.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Análisis estadístico]]></kwd>
<kwd lng="es"><![CDATA[potencia]]></kwd>
<kwd lng="es"><![CDATA[potencia de la señal]]></kwd>
<kwd lng="es"><![CDATA[sensor de presión]]></kwd>
<kwd lng="es"><![CDATA[torque]]></kwd>
<kwd lng="en"><![CDATA[Statistical analysis]]></kwd>
<kwd lng="en"><![CDATA[power]]></kwd>
<kwd lng="en"><![CDATA[signal power]]></kwd>
<kwd lng="en"><![CDATA[pressures sensor]]></kwd>
<kwd lng="en"><![CDATA[torque]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</article>
