Development and vibration analysis of an In-Wheel Electric Motor Drive system

Abstract

The emerging production investment in Electric Vehicles is claiming to substitute the current automobile situation due to not just their multiple advantages but the increasing fossil sources depletion concern. Numerous studies have been working on the Electric Vehicles efficiency and driving experience improvement. One of the point of interest of these investigations was the setup of the motor and drive, introducing several proposals for the system implementation that included the In-Wheel Motor Drive structure. This project aims to present the development of a novel In-Wheel Motor Drive design which claims to improve the vehicle response to a conventional road surface. The aims, process, outcomes and conclusions are included in this report. The project examines the response to a conventional road in different systems two stages. A first analysis of original structures, as Conventional Electric Vehicle, Fixed In-Wheel Motor and Suspended In-Wheel Motor, and a second one with the introduced new designs. Both analysis and simulation will be implemented in a frequency domain setting, with the purpose of showing the different response within the excitation frequency range. The mechanical parameters of the best-behaved systems will be contrasted in order to obtained an optimised system. The final design presented is found to have an improved performance while being exposed to a conventional road surface spectrum, corroborating the project main objectives.