Implementación de un sistema de tracción eléctrica aplicado al vehículo prototipo fórmula SAE de la carrera de Ingeniería Automotriz

Abstract

This project aimed to implement an electric traction system for the Formula SAE prototype vehicle of the Automotive Engineering race. Thus, the study and theoretical compilation of information through books and scientific articles were developed to analyze the different elements that will make up the electric traction system, and which were implemented in the Formula SAE vehicle. The electric drive system implemented in the prototype is a chain drive system, dragged by a motor electric of 10 KW with its respective controller, with an operating voltage of 64 volts and powered by a 60V – 50AH ION-LITHIUM battery. Once the needed characteristics have been defined, electrical and electronic components, the mechanical components were adapted in the prototype, such as the calculation of the transmission ratio, assembly of the differential system, and adequacy of the rear axle shafts. Then by the adaptations of the compartments for the components such as the battery, controller, and inverter. To analyze the behavior of the electrical system before connecting it physically. The connections were made in specialized software, this avoided being able to damage components due to poor connections. The tests carried out to the prototype show that the engine works at 2.24KW. This means, at a power of 3 HP, its battery has an autonomy of 30 minutes working continuously. It concluded that both the mechanical part as well as electrical and electronic work satisfactorily except that the battery is insufficient to take full advantage of the capacity of the engine. It is recommended to equip the system of a hybrid battery with which a greater amount of energy can be obtained and the structural part could even be improved to have a better power-to-weight ratio.