Diseño e implementación de un sistema de verificación de sensores y actuadores para el sistema de inyección electrónica de vehículo a gasolina

Abstract

In the automotive industry there were different types of problems in sensors and actuators due to the various operating conditions of the gasoline vehicle at idle, medium and full load, due to these malfunctioning parameters, the diagnosis is commonly performed through instruments such as multimeter, scanner and oscilloscope, which often determined the malfunction of a sensor or actuator. To aid diagnosis, a sensor and actuator verification system was implemented for the electronic injection system of gasoline vehicles using electronic devices. To develop the verification system of sensors and actuators of the electronic injection system, a bibliographic analysis of the sensors and actuators of the injection system of a provocative ignition engine was performed, which allowed knowing the design parameters of the printed circuits for reading sensors and power circuits for actuators with the simulation software Proteus. In addition, the ATMEGA 2560 microcontroller was programmed in the C language of the Arduino development environment, to finally evaluate the performance of the system through graphical verifications and the development of a manual. The results showed that, by evaluating the operation of the sensors and actuators, incorrect diagnosis was prevented, helping to avoid loss of money and time. In this context, it was concluded that the verification device functioned as an optimal, accurate and simple tool to evaluate the sensors and actuators of the gasoline vehicle and, thus, corroborate the initial diagnosis performed by the automotive diagnostic tools.