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Listar por autor "Guardiola García, Carlos"

Mostrando ítems 1-20 de 128

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A bias correction method for fast fuel-to-air ratio estimation in diesel engines

Guardiola, Carlos; Plá Moreno, Benjamín; Blanco-Rodriguez, David; Mazer, Alexandre; Hayat, Olivier (SAGE Publications (UK and US), 2013-08)

l probes in turbocharged diesel engines are usually located downstream of the turbine, exhibiting a good dynamic response but a significant delay because of the exhaust line transport and the hardware itself. With the ...
A Challenging Future for the IC Engine: New Technologies and the Control Role

F. Payri; Luján, José M.; Guardiola, Carlos; Plá Moreno, Benjamín (EDP Sciences, 2015)

[FR] Un challenge pour le futur du moteur a` combustion interne : nouvelles technologies et ro¿le du contro¿le moteur ¿ Les nouvelles normes sur les e¿missions, en particulier le CO2, pourraient re¿duire l¿utilisation ...
A combustion phasing control-oriented model applied to an RCCI engine

Guardiola, Carlos; Pla Moreno, Benjamín; Bares-Moreno, Pau; Barbier, Alvin Richard Sebastien (Elsevier, 2018-09-22)

[EN] Low temperature combustions such as Reactivity Controlled Compression Ignition (RCCI) have been shown to be a promising way to reduce pollutants at the exhaust, i.e. NOx and soot emissions, and increase the thermal ...
A computationally efficient Kalman filter based estimator for updating look-up tables applied to NOx estimation in diesel engines

Guardiola, Carlos; Plá Moreno, Benjamín; Blanco-Rodriguez, David; Eriksson, L. (International Federation of Automatic Control (IFAC), 2013-11)

No-x estimation in diesel engines is an up-to-date problem but still some issues need to be solved. Raw sensor signals are not fast enough for real-time use while control-oriented models suffer from drift and aging. A ...
A direct transform for determining the trapped mass on an internal combustion engine based on the in-cylinder pressure resonance phenomenon

Broatch Jacobi, Jaime Alberto; Guardiola García, Carlos; Plá Moreno, Benjamín; Bares Moreno, Pau (Elsevier, 2015-10)

It has lately been demonstrated that the resonance of the in-cylinder pressure may be used for inferring the trapped mass in an internal combustion engine. The resonance frequency changes over time as the expansion stroke ...
A fuzzy logic map-based knock control for spark ignition engines

Pla Moreno, Benjamín; Bares-Moreno, Pau; Jimenez, Irina Ayelen; Guardiola, Carlos; Zhang, Y.; Shen, Tielong (Elsevier, 2020-12-15)

[EN] Knock control represents one of the most critical aspects to reach optimal thermal efficiency in spark ignition engines, and its research is crucially important because it determines thermal efficiency, engine durability, ...
A learning algorithm concept for updating look-up tables for automotive applications

Guardiola García, Carlos; Plá Moreno, Benjamín; Blanco Rodríguez, David; Cabrera López, Pedro (Elsevier, 2013-04)

Look-up tables are commonly used in the automotive field for handling operating point variations. However, constant maps cannot cope with systems variations and ageing. Methods, such as Kalman filter or Extended Kalman ...
A new knock event definition for knock detection and control optimization

Bares-Moreno, Pau; Selmanaj, D; Guardiola, Carlos; Onder, C. (Elsevier, 2018)

[EN] In this paper, the knock phenomenon is studied and characterized in the time-frequency domain. From the analysis results, a new knock event definition is proposed, which compares the excitation of the cylinder resonance ...
A New Model for Matching Advanced Boosting Systems to Automotive Diesel Engines

Galindo, José; Luján, José M.; Climent, H.; Guardiola, Carlos; Varnier, Olivier (SAE International, 2014)

[EN] Boosting technologies have been key enablers for automotive engines development through downsizing and downspeeding. In this situation, numerous multistage boosting systems have appeared in the last decade. The ...
A stochastic method for the energy management in hybrid electric vehicles

Payri González, Francisco; Guardiola, Carlos; Plá Moreno, Benjamín; Blanco-Rodriguez, David (Elsevier, 2014-08)

There are many approaches addressing the problem of optimal energy management in hybrid electric vehicles; however, most of them optimise the control strategy for particular driving cycles. This paper takes into account ...
Adaptive calibration for reduced fuel consumption and emissions

Guardiola, Carlos; Plá Moreno, Benjamín; Bares-Moreno, Pau; Waschl, Harald (SAGE Publications (UK and US), 2016-12)

This paper presents a model-based approach for continuously adapting an engine calibration to the traffic and changing pollutant emission limits. The proposed strategy does not need additional experimental tests beyond ...
Adaptive determination of cut-off frequencies for filtering the in-cylinder pressure in diesel engines combustion analysis

Payri González, Francisco; Olmeda González, Pablo Cesar; Guardiola García, Carlos; Martín Díaz, Jaime (Elsevier, 2011-10)

[EN] In-cylinder pressure analysis is a key tool for engine research and diagnosis and it has been object of study from the beginning of the internal combustion engines. One of its most useful application is combustion ...
An analysis of the in-cylinder pressure resonance excitation in internal combustion engines

Guardiola, Carlos; Pla Moreno, Benjamín; Bares-Moreno, Pau; Barbier, Alvin Richard Sebastien (Elsevier, 2018)

[EN] This paper analyses the in-cylinder pressure oscillations in internal combustion engines, which are initiated by combustion and resonate during the expansion stroke. A specific mathematical tool, which takes into ...
An on-board method to estimate the light-off temperature of diesel oxidation catalysts

Guardiola, Carlos; Pla Moreno, Benjamín; Bares-Moreno, Pau; Mora, Javier (SAGE Publications, 2020-10)

[EN] Current diesel engine regulations include on-board diagnostic requirements so that after-treatment systems need on-board methods to detect their aging state through the available measurements. In a state-of-the-art ...
An on-engine method for dynamic characterisation of NOx concentration sensors

Galindo, José; Serrano Cruz, José Ramón; Guardiola, Carlos; Blanco-Rodriguez, David; Cuadrado, I.G. (Elsevier, 2011-04)

An on-engine method for dynamic characterisation of automotive NOx concentration sensors is presented. Steps in start of injection on a diesel engine are employed to achieve step-like NOx concentration variations on exhaust ...
Analisis de la incertidumbre y análisis de sensibilidad del motor Stirling

Ruiz Ortega, Diego (Universitat Politècnica de València, 2020-04-29)

[ES] El alcance de esta tesis de maestría es, a través de diferentes modelos sustitutos, poder analizar cómo las diferentes partes del motor, representadas como entradas, interactúan y afectan en la obtención de la salida, ...
Analysis of Real-Driving Data Variability for Connected Vehicle Diagnostics

Barbier, Alvin Richard Sebastien; Salavert Fernández, José Miguel; Palau Salvador, Carlos Enrique; Guardiola, Carlos (Elsevier, 2022-08-31)

[EN] Connected vehicle paradigm allows the systematic recording of data, which may be made available for both on-board and cloud diagnostics functions. However, real-driving conditions may be highly dynamic, making the ...
Analytical Optimal Solution to the Energy Management Problem in Series Hybrid Electric Vehicles

Luján, José M.; Guardiola, Carlos; Pla Moreno, Benjamín; Reig, Alberto (Institute of Electrical and Electronics Engineers, 2018)

[EN] An optimal solution to the energy management problem in hybrid electric vehicles has been extensively addressed in the literature during the last decade, especially with the application of dynamic programming, the ...
Análisis de la variabilidad cíclica de un motor con cruce de válvulas negativo

Pérez Preciado, Iván Alberto (Universitat Politècnica de València, 2017-09-26)

OpenWAM es un software desarrollado por el CMT para simular condiciones 1-D. En primer lugar, diversas partes del código tuvieron que ser modificadas, pues éste no estaba preparado para simular condiciones donde hubiese ...
Análisis del funcionamiento del motor y de la eficiencia de conducción mediante el uso de sistemas GPS y OBD

Guardiola García, Carlos; Dolz Ruiz, Vicente; Plá Moreno, Benjamín; Reig Bernad, Alberto (Universitat Politècnica de València, 2016-01-27)

[EN] The widespread use of smartphones and the availability of On Board Diagnosis (OBD) tools is profited to improve the way automotive engines operate in real conditions are learnt by engineering students. Particularly, ...