The H2020 project FITGEN: preliminary results and design guidelines of an integrated e-axle for the third-generation electric vehicles

The electrification of light-duty vehicles is key to reducing emissions in urban areas. This paper aims at presenting the interim results of the European project FITGEN, granted under the H2020 LC-GV-01-2018 call and kicked-off in January 2019. The project will deliver an e-axle natively designed to fit a brand-independent A-segment fully electric vehicle architecture, enabling the following progresses beyond the state-of-the-art 2018: (1) 40% increase of power density of the motor from an innovative 6-phase permanent magnet e-machine design with operation at 20,000 rpm, (2) 50% increase of power density of the inverter from the adoption of SiC power switches and (3) affordable, in-built fast charge capability up to 120 kW peak power. This manuscript includes the design guidelines adopted in the areas of electric motor, transmission, power electronics and control, providing an interim overview of the advancements of the project.