Sistema de telemetría aplicable en los prototipos de categoría gasolina participantes en la competencia Eco-Shell Marathon.

Abstract

This work of technological proposal shows the study and procedure for a telemetry system implementation with simplex point-to-point configuration technology, for the monitoring and transmission of real-time data of the prototype to verify its correct operation through the use of sensors which will allow verifying parameters such as prototype speed, room temperature, fuel consumption, engine revolutions per minute, intake air pressure, throttle position, and the engine temperature. This system was based on the essential operation of acquisition, transmission, and visualization of data obtained from the prototype in action to assist the pilot quickly and efficiently. The electronic control system was done through Arduinos, which is free hardware that allows establishing an electrical-mechanical operation. For data transmission, it was done through the use of the NRF 24L01 module, which is a wireless communication module that provides interconnection and communication between two devices. As for the graphic interface, it was developed through the LABVIEW software, which allows us to have a clear visualization of the operation of the prototype in real-time. Three performance tests were carried out in Riobamba city simulating the parameters and conditions of the competition, such as the track layout, which had a perimeter of 780 m and with a 5-lap route at an average speed of 20km / h. The 250ml fuel tank was also used, granted by the organizers of the competition, and the measurements made were following the same procedure of the technicians of the Shell Eco-Marathon, obtaining a route of 415.33 km with 1 Lt of fuel, achieving favorable results. A higher efficiency was obtained in 3.83% with the implementation of the telemetry system — concluding that the communication, monitoring, and control systems of the prototype are of vital importance since it has allowed formulating driving strategies that were very useful to obtain a better efficiency in the fuel consumption of the prototype, making it more competitive based on the Shell-Eco Marathon Brazil 2019 competition requirements.