Projeto de uma suspensão independente para um veículo elétrico fora de estrada e avaliação prática do conforto dos ocupantes

Abstract

This work aimed to the replacement of dependent frontal suspension by an independent from electric vehicles that circulate on golf courses. With this alteration, sought to obtain greater comfort and improve the handling of vehicle on rough terrain where they transit. The new suspension was selected among the most used in the current auto market, seeking a model that was compatible with the vehicle of study and that afforded the greatest possible advantages. Correlated works were explored in order to contribute positively for more specific issues of the project of an independent suspension. The new suspension project was carried out based on the presented informations, seeking to comply with the established geometries in literature, plus higher sustained weight to increase vehicle comfort and drivability. Submitted the electric vehicle to practical tests in a prototype, transiting on paving of grass, parallelepiped and asphalt with the intention of to simulate the pavings found on golf courses. As a result, there was obtained significant improvements depending on vibration measurement sensor. With the sensor used to measure whole body vibration, were obtained improvements in the accelerations between 14% and 23% on the three pavings carried over. Already for palm sensors and frame, there were no significant variations in vibration. Therefore, it is concluded necessary to update the independent suspension project seeking parameters that satisfy the vibration limit values indicated by the standards presented in this work (sic).