Construcción de un datalogger para recolección de datos de consumo energético de un vehículo eléctrico

Abstract

The automotive engineering career does not have a device capable of measuring and storing data related to physical variables of phenomena that influence energy losses during the movement of an electric vehicle, which is a limitation for the realization of academic studies related to the validation of mathematical models and generation of driving cycles. The objective of this curricular integration work was to build a datalogger with non-invasive sensors for the collection of energy consumption data of an electric vehicle. To build the datalogger, a physical and a virtual part was developed. The physical part consists of a box, a PCB board, an Arduino Mega2560 board, an Arduino Pro-Mini board, sensors: BMP280, LM35A, Davis Vantage Pro2-6410, DHAB S/137 and JXDA4U; GNSS module, push button and display INX4827K043_011R; the virtual part consists of: algorithm developed in Arduino ID and interaction with the graphical interface. The datalogger was adapted to a vehicle and a battery pack, tests of data recording and storage and interaction with the graphical interface were performed. A ratio of 1 data/second and 0.5 data/second was obtained for 1 second and 2 seconds of sampling respectively. The data were stored in a text file in a defined structure with a separator between each data; it was possible to interact with the screen in the selection of the variables to be recorded along with the presentation of the information. From the results achieved it was concluded that the datalogger is capable of recording data during the actual operation of the device with a sampling time of 1 or 2 seconds, storing them in a text format file in an orderly manner and presenting the information in real time, maintaining a degree of accuracy according to the manufacturers' specifications.