Diseño y construcción de un dispositivo electrónico, adquiriendo y modificando las señales base de los sensores para aumentar la eficiencia y funcionamiento del motor de combustión interna.

Abstract

Increasing or decreasing the engine power is possible, in this case it will be performed by modifying the signal of the MAF sensor through electronic devices that allow to manipulate the output voltage to the control unit, the device has three operation modes, when the vehicle is turned on, by safety protocol it starts in NORMAL mode, whose objective is to transmit the signal it receives without making any change in it, the device allows to select the working mode, in a very simple way by pressing the push button that is found in it. The changes generated in the signals are due to electronic devices called OPAMP, which are integrated circuits that allow adding voltages to the signals, each of the driving modes are electronically operated by the relays that enable the circuits, one at a time, the Arduino UNO development card, is responsible for managing the operation thereof, as well as showing through the LED screen, the mode in which it must work in real time. When the SPORT mode is activated, the signal emitted by the sensor is modified by increasing the output voltage with a pre-established value of 10 percent, in this way the control unit recognizes this signal as an additional air intake, which enriches the mixture, whereas the ECO mode is activated, the signal sent out by the sensor is modified, decreasing 10 percent of the output voltage, causing the control unit to recognize lower air mass intake and thereby decrease the time pulse injection. The 10 percent increase or decrease in the different driving modes is preset as the maximum value so the control unit may not detect this signal alteration as a malfunction in the sensor, this device can be used in analog sensors whose output signal it’s voltage.