Experimental research in mechanic's field of control for further innovation in the hydraulic and electronic operated injection system

¹ InterCars, Automotive Engineering Department, 400228 Corneliu Coposu Street, Cluj-Napoca, Romania
² Technical University of Cluj-Napoca, Mechanical Engineering Department, 400641 Muncii Bvd 103-105, Cluj-Napoca, Romania
³ Technical University of Cluj-Napoca, Automotive and Transportation Department, 400641 Muncii Bvd 103-105, Cluj-Napoca, Romania

^* Corresponding author: doru.baldean@auto.utcluj.ro

Abstract

In the present research paper is detailed an experimental work concerning Engine Control Unit (ECU) in order to trace predictive trend-lines regarding operational parameters such as ignition timing, fuel supply, injection duty, at more than ten engine speed regimes in the case of a powertrain for motor-sport competition, with distinct air pressures, injector status and spark advances. An experimental study of real values and trend-lines as well as actuator's output data was realized in order to point out electronic control unit's functional characteristics and to redefine the economic field with optimal combustion pressure, efficient mixture formation/burning and diminished emissions as a consequence of the proper measures. Air intake pressure influences the fundamental conditions for intake charge definition and for lambda level even prior to engine cycle beginning in the powertrain with port fuel injection (PFI). Lambda value expresses the operational quality in relation with the excess air intake compared to the minimal amount necessary for a complete combustion of fuel jet charge.