Estudio de los efectos en las emisiones de óxidos nitrosos, de un motor CRDi Hyundai Santa FE 2.0, mediante el control difuso de la válvula EGR

Abstract

In this research the study of the effects on the emissions of nitrous oxide, by the diffuse control of the EGR valve is presented. For this purpose sensor signals were obtained that influence the operation of the EGR system of the Hyundai Santa Fe CRDi engine, these signals went through digital filtering processes, so that they do not present problems in the instant of being processed in the diffuse system. The obtained signals were considered as input and output variables for the diffuse system design, which consists of a fusing stage, membership functions, fuzzy sets and defusification, the output variable was additionally given a post treatment process, Before the system controls the solenoid valve EGR. Once the diffuse EGR valve control system was established, samples of the engine emissions were taken under different operating conditions. Finally, we validated the differences in the means of the results by means of a statistical analysis.