Implementación de un sistema de adquisición de datos (DAQ) con el fin de medir parámetros de funcionamiento de la batería de alta tensión de vehículos híbridos y eléctricos

Abstract

This document details the development of a data acquisition system to obtain electrical parameters of high voltage batteries of hybrid and electric vehicles such as voltage, current and electrical power. The project began with selecting the components of the interface presentation system, the software containing the program, and the measurement system. Consecutively, the programming code was developed in Python, which is responsible for, among other tasks, presenting the interface to the user and processing the data measured by the voltage and current sensor. Finally, in the programming code, a process of scaling and correcting the sensor signals was carried out. A multimeter and clamp meter was used as reference equipment, and static tests were carried out on an electric vehicle. The result is a device with the characteristics of portability, a friendly interface for handling and reading results, the option of being able to choose the sampling frequency according to the operator's preferences, the presentation of data in real-time at the time of performing the test and finally the option of accessing a database for subsequent revisions. It is concluded that thanks to its characteristics, the developed device allows dynamic and static tests to be carried out on hybrid and electric vehicles.