Electronic Fuel Injection in Diesel Engines (E-FIDE)

• Main Authors: Garcia, Eduardo Samuel B., IV, Montemayor, Jay Alfred S., Munoz, Antonio T., IV, Sy, Michael Alvin C.
• Format: text
• Language: English
• Published: Animo Repository 2006
• Subjects: Automobiles > Motors > Electronic fuel injection systems; Motor fuels; Motor vehicles > Fuel consumption; Motorcycles > Motors > Fuel injection systems; Computer Sciences
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/14180
• Institution: De La Salle University

Electronic Fuel Injection (EFI) systems makes use of computer-controlled injectors to spray fuel into the engine cylinders rather than mechanically controlled fuel injectors. It is considered to be an improvement over mechanical fuel injection systems because it allows more precise fuel metering for easier starting, lower emissions, better fuel economy and performance. In most diesel-powered vehicles in the Philippines, mechanical injection systems are still being used, which are not only less efficient in terms of fuel economy and engine performance, but are also harmful to the environment. The system converts the mechanical fuel injection system of a diesel engine into an electronically-controlled fuel injection system. The system is composed of an Electronic Control Unit (ECU) which manages the fuel injection of the diesel engine and an algorithm for the software system that manages the computation for the proper amount and timing of fuel injection. Inefficiency of mechanical fuel injection system is due to the fact that various parameters are not taken into consideration like air intake and engine temperature, manifold air pressure, and engine speed or RPM. The engine torque, trottle response, and fuel economy of the modified EFI system of the diesel engine are characterized. The said conversion and characterization is done through the utilization of actuators, sensors and electronic control module. The system increases fuel mileage of the diesel engine by an average of 10.69% while maintaining the engine torque, engine power, and acceleration and improving soot emission by 22.73%.