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Investigation of integrated e-Axle solutions for automotive propulsion electrified applications

Andrea Conti

Investigation of integrated e-Axle solutions for automotive propulsion electrified applications.

Rel. Vittorio Ravello, Gianmario Pellegrino, Gaetano Dilevrano. Politecnico di Torino, Corso di laurea magistrale in Automotive Engineering (Ingegneria Dell'Autoveicolo), 2021

Abstract:

This thesis activity is focused on the investigation of integrated e-Axle solutions, also called 3in1 for electrified vehicles (EVs and HEVs). This modular element is made of the reversible electric motor, the mechanical transmission and the bidirectional DC/AC converter, also called inverter. The investigation starts with a brief description of the components of the e-Axle, followed by the state of the art analysis both for passenger cars and heavy duty vehicles. Following on, the transmission design is described both for single-speed and two-speeds arrangement. The same is for the e-motors related to the two speeds transmission solutions for a small Class A passenger car. A brief description of the inverter and a simple cost evaluation (focused on the e-motor materials) is presented. As last step, the two new solutions are evaluated at simulation level using as reference a Fiat 500e with its e-powertrain in terms of accelerating performance with different target speed and range/energy consumption on the WLTP homologation cycle. At the end the conclusions and the next possible future improvement and refinement steps are presented.

Relators: Vittorio Ravello, Gianmario Pellegrino, Gaetano Dilevrano
Academic year: 2021/22
Publication type: Electronic
Number of Pages: 81
Additional Information: Tesi secretata. Fulltext non presente
Subjects:
Corso di laurea: Corso di laurea magistrale in Automotive Engineering (Ingegneria Dell'Autoveicolo)
Classe di laurea: New organization > Master science > LM-33 - MECHANICAL ENGINEERING
Aziende collaboratrici: Centro Ricerche Fiat S.C.p.A.
URI: http://webthesis.biblio.polito.it/id/eprint/20772
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