Desarrollo de una herramienta didáctica para la Carrera de Ingeniería Automotriz, que permita caracterizar el consumo de combustible, empleando la señal de los sensores del motor en la red CAN.

Abstract

The technological advance and the incorporation of electronic systems in automobiles have increased more and more. Currently the application of electronic control can be found in all automotive systems: engine, traction, safety, comfort and communication; all these systems have information of great importance which is difficult to access and which circulates today within the CAN network (Control Area Network). The purpose of this work is to access this information to acquire and analyze a database in real time of the main sensors obtained through the CAN network, at the same time to develop a model of behavior of fuel consumption and ignition advance through the signals of the sensors and actuators. Also, the Automotive Engineering career will be provided with a didactic tool that will allow to know how an automotive computer works. The proposal of this work is research and development; the way of how to access the information circulating in the CAN network was investigated, this could be achieved through the acquisition of a team developed by National Instruments, a program was also developed in LabVIEW that allows us to interact with the National Instruments team and the CAN network, in this way the data can be extracted in real time and visualize the behavior of the main sensors, ignition advance, volumetric efficiency and the characterization of the fuel consumption; this information can serve as parameters for the programming of automotive computers. Based on the tests developed in the designated vehicle, the graphs of the data obtained from fuel consumption, ignition advance, and volumetric efficiency are presented. It is concluded that this research work is reliable and applicable to other types of gasoline M.C.I vehicles with considering the modification of certain parameters.