Vývoj samonosné pohonné jednotky elektromobilu

Abstract

The dissertation deals with the development of a self-supporting casing for the drive of electric vehicles. The introductory part of the thesis is devoted to the selection of the power unit and the problems of its use in electric vehicles. In the practical part of the thesis, the structural design of the self-supporting power unit housing was implemented. Furthermore, materials suitable for the production of the self-supporting electric motor housing were selected in terms of mechanical and corrosion properties, weight and price. Then, strength testing was carried out using mechanical stress simulations using the finite element method (FEM). This was followed by the fabrication of the designed self-supporting housing. Next, the cooling circuit was created for the Remy HVH250-090-S electric motor, which is intended for installation in an electric vehicle, and developed a method for testing the cooling system of this electric motor using sensors to monitor pressure, flow and temperature. The on-line data obtained was based on from load simulations under selected driving modes of the vehicle. In the last step the self-supporting electric motor housings were implemented in the StudentCar Titan electric vehicle and verified for functionality by driving tests.