The Pengaruh temperature dan bukaan throttle (jumlah udara masuk) terhadap tegangan output sensor pada simulator sistem bahan bakar EFI

Abstract

In the current conditions, the Malang State Polytechnic campus PSDKU Lumajang needs practical tools for lectures, therefore it is hoped that this fuel system simulator props can be used for lecture time practice sensors and actuators. This study aims to design and build an EFI fuel system simulator and test the effect of temperature variations and amount of incoming air on the sensor output voltage in the EFI fuel system simulator. The method used in this study uses an experimental method, namely by designing and building an EFI fuel system simulator. The test was carried out with temperature variations and amount of incoming air by attaching IAT sensors and MAF sensors to the intake manifold simulated by the pipe, then the temperature variation and amount of incoming air were tested by the output voltage of the IAT sensor and MAF sensor. The results of the study showed that the output voltage of the IAT sensor had an effect on the temperature. As the temperature increases, the output voltage of the IAT sensor will decrease, because the characteristics of this IAT sensor are like NTC (Negative Temperature Coefficient) type thermistors, where the sensor resistance decreases when the temperature increases. The output voltage of the MAF sensor also affects the amount of air entering (throttle opening), because this MAF sensor works on the principle of hot wire, which uses a hot wire element that is constantly heated by an electric current. This heating element will cool down when it is passed by the air flow, because the incoming air will absorb some of the heat from the element.