Desarrollo de un prototipo de inyección electrónica mediante la tarjeta Raspberry PI XX para motores de dos tiempos de baja cilindrada de 50 a 150 CC.

Abstract

A prototype of electronic injection was developed using the Raspberry Pi 3 B+ card, for motorcycle engines (Suzuki Ax 100), two-stroke with a displacement of 100 [cc], as an alternative to traditional carburetion systems. For the development of the system used a set of sensors such as: butterfly position sensor (TPS), crankshaft position sensor (CKP), intake air temperature sensor (IAT), absolute pressure sensor of the intake manifold (MAP) and coolant temperature sensor (ECT); An acceleration body was designed to improve engine efficiency, reduce fuel consumption and reduce polluting gases. The amount of fuel that is delivered to the injector was calculated to perform the ideal mixture required in the thermodynamic intake cycle, for its subsequent combustion in the explosion stage in the cylinder chamber. The signals processed by algorithms in the acceleration body, it encoded under the Python language, in order to determine the activation time of the injector. From the development of the prototype, it was verified the optimization of the fuel consumption, better performance of the engine and the reduction of the emission of toxic gases to the atmosphere. It concluded that the implementation of the electronic injection system provides greater efficiency with a saving of 31.72% of fuel consumption, taking that for each liter of fuel consumption there is a route of 8 Km; demonstrating the best economic, ecological and sustainable alternative. It was taken into account its better performance and efficiency in the electronic injection systems, the selection of the type of sensor and the calibration are relevant for the prototype implementation.