Dimensionamento de um sistema de frenagem de um veículo Baja SAE

Abstract

In a vehicle, the most capable sistems to avoid acidentes are brake and steering. Specially the the brake sistem, that has the extremly important task of deccelerating the vehicle in a safe and eficiente way, despite the surrounding conditions. Thus, this work will approach a design methodology of a Baja SAE brake sistem, wich is a Vehicle built by college students from many universities who have in mind a competition, on wich the designs will be judged and ranked. For such vehicles, beyond the driver´s and vehicle’s structure safety, there is one more concerning in the case the brake sistem doesn’t work correctly, this concerning is the disqualification of the team from the competition. To build a solid and reliable methodology, in this job i will talk about the differents kinds of brake sistems availables on the market and their basic components, also was made a recomendation about the best combination of triggering method and the triggered assembly, so, this methodology was built considering a hydraulic system with disc-calliper assembly at the wheels. At first, the vehicle behavior during the braking was explained by doing an analisys of the longitudinal vehicle dynamics, further was shown how to calculate the braking power of the system by calculating the braking torque and braking forces that it is able to generate. This writing was built for the engeneering students, specially the ones who participate on a Baja team and are responsibles by the brake design of it’s team, and with a main goal to enlight and provide a guide on how to choose your componentes and design your system. When puted to test at the regional competition SAE Northeast 2020, the showed methodology came out to be satisfactory by receiving the third place on the design presentation.