Abstract
The automotive industry trend is to push e-axles power density to reduce the weight, maximize the available space and reduce cost of the vehicle. Pushing power density means high mechanical speed and high peak current density. Maximum speeds for traction machines found in the industry are in the range of 12-20 krpm. The trend is to move towards maximum speeds of the traction motor above 20 krpm, in particular for high performance electric vehicles. This paper analyzes the design challenges of selecting the concept design for a high speed traction PM motor and high current density. The study is limited to hairpin winding PM machines for vehicle traction application and with a maximum operating speed above 20 krpm. The trade-off between power density, efficiency and cost is studied analyzing the most relevant pole/slot combinations and rotor topologies considering electromagnetic, thermal and mechanical aspects.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
