[EN] Knock phenomenon reduces the thermal efficiency and restricts performance improvement in spark-ignited engines. Reliable and rapid knock recognition is crucial for the engine knock control. Among the wide set of knock ...
[EN] Cylinder-to-cylinder combustion dispersion in internal combustion engines might be caused by various factors (e.g. manufacturing variations of the injectors or nozzle coking) which can result in an increase in pollutant ...
[EN] A novel technique of trapped mass determination, based on the in-cylinder pressure resonance, has been recently published by the authors. However, the method only works when sufficient resonance intensity exists and ...
[EN] Knock detection is critical to engine control as it prevents damage and ensures optimal performance. However, it still presents significant challenges, particularly in alternative combustion systems, due to its complex ...
[EN] This paper presents a new knock model which combines a deterministic knock model based on the in-cylinder temperature and an exogenous noise disturbing this temperature. The autoignition of the end-gas is modelled by ...
[EN] The efficiency and range of electric vehicles (EVs) is an actual object of concern among manufacturers. The fast market share growth together with issues such as range anxiety demand evermore robust battery thermal ...
Aroca García, Enrique(Universitat Politècnica de València, 2024-01-11)
[ES] Este trabajo trata de analizar la viabilidad de una aplicación comercial que
permita obtener una estimación de la contaminación en carreteras a partir
del vuelo de drones en determinadas áreas.
Los contaminantes ...
García-Cuevas González, Luis Miguel; García Tíscar, Jorge; Bares Moreno, Pau; Gil Megías, Antonio; Quintero Igeño, Pedro Manuel(2022-08-02)
En este objeto de aprendizaje explicamos un procedimiento sencillo para caracterizar la pérdida de carga o el coeficiente de descarga de un espécimen como un agujero calibrado en un conducto unidimensional.
Calderón García, Alberto(Universitat Politècnica de València, 2020-10-20)
[ES] Los sistemas de postratamiento de los motores Diesel son cada vez más complejos como consecuencia de los bajos niveles de emisiones permitidos. Una de las emisiones más criticas son los NOx. El sistema con mayor ...
Guardiola, Carlos; Pla Moreno, Benjamín; Bares-Moreno, Pau; Mora, Javier(Institute of Electrical and Electronics Engineers, 2020-06)
[EN] The control of selective catalytic reduction (SCR) systems, via NH3 injection, requires from a precise estimation of the SCR load in order to ensure NOx reduction by minimizing ammonia slip. This article aims to resolve ...
[EN] After-treatment systems (ATS) in vehicle powertrains are developed to achieve maximum pollutant abatement efficiency under design operating conditions. However, anomalies in the ATS may appear during real operation, ...
Escrihuela Hinojosa, Javier(Universitat Politècnica de València, 2020-07-31)
[ES] Actualmente, nos encontramos ante un problema innegable: la contaminación global, generada por el aumento exponencial de automóviles en nuestra sociedad. A día de hoy, tener un vehículo privado supone un requisito ...
[EN] Reactivity controlled compression ignition (RCCI) engines as one of low temperature auto ignition combustion strategies have shown a good performance to reduce NO (x) and soot emission while increasing engine thermal ...
[EN] This work presents the development of a model to capture the NOx sensors cross sensitivity behavior based on NO(x )sensor cell temperature, as well as a model do predict the slip of the NOx and NH3 after the SCR ...
Trintinaglia Perin, Augusto(Universitat Politècnica de València, 2022-10-27)
[ES] El trabajo propuesto utiliza dos tipos de información: la que proviene del entorno (V2I), y la que proviene de otros vehículos (V2V), para mejorar las características de los sistemas más importantes de los vehículos, ...
[EN] Dual-fuel combustion engines have shown the potential to extend the operating range of Homogeneous Charge Compression Ignition (HCCI) by using several combustion modes, e.g. Reactivity Controlled Compression Ignition ...
Luján, José M.; Pla Moreno, Benjamín; Bares-Moreno, Pau; Aramburu-Orihuela, Alexandra(SAE International, 2021-04-15)
[EN] Low pressure exhaust gases recirculation (LP-EGR) is becoming a state-of-the-art technique for Nitrogen oxides (NOx) reduction in compression ignited (CI) engines. However, despite the pollutant reduction benefits, ...
Quiles Arias, Cristian(Universitat Politècnica de València, 2023-09-06)
[ES] El calentamiento global está obligando a los países a buscar soluciones de adaptación y mitigación, para solucionar el cambio climático. Los sectores que más cantidad de energía demandan son el transporte, la industria ...
Blanco Chuecos, Carlos Javier(Universitat Politècnica de València, 2019-11-12)
[ES] El presente trabajo aborda una alternativa basada en modelado para la optimización del consumo de combustible y de las emisiones de NOx en un motor Diesel; creando una calibración óptima basada en mapas para la partición ...
[EN] New propulsive architectures, with high interactions with the aerodynamic performance of the platform, are an attractive option for reducing the power consumption, increasing the resilience, reducing the noise and ...