Repotenciación Avanzada del Sistema De Inyección Electrónica del Motor de Encendido Provocado en el Dinamómetro Armfield Cm11 Mediante Reprogramación de Módulos de Control Electrónico

Abstract

The increase of the greenhouse effect caused by the transportation sector is currently being confronted through the use of alternative fuels, however; it is necessary to evaluate the performance of the engines for this reason dynamometers are used. Therefore, this project seeks to repower the electronic injection system of a Volkswagen 1.6L engine installed in the Armfield CM-11 dynamometer, through the reprogramming of a programmable ECU. The development of the project was carried out in three phases. First, the injection system sensors and actuators were characterized using diagnostic tools such as multimeter, oscilloscope and thermocouples. In the second phase, the harness was developed and the ECU was configured based on the data obtained, using fuel dosing strategies such as Speed Density and Alpha-N to control the ignition angle. The third phase consisted of validating the engine's performance by means of emissions tests in accordance with RTE INEN 017 standards, using an AGS-688 analyzer. The results showed that the reprogramming of the ECU optimized the fuel dosage to the maximum and the ignition advance that was minimum 2.5° and maximum 27.7°, this made the engine work properly with a maximum of polluting emissions of CO 0.44% and HC of 143 ppm. In addition, practical guides for the engine configuration and the programmable ECU were developed to facilitate future practices.