• Joshua Best

  • Theme:Propulsion Electrification
  • Project:Electric Motors with Reconfigurable Windings for Traction Drive Applications
  • Supervisor: Chris Vagg ,Pedram Asef
  • Industry Partner: Elaphe
  • The Gorgon's Head - Bath University Logo
Photo of Joshua Best


Joshua graduated with a masters degree in automotive engineering from the University of Brighton. Most recently tackling the feasibility of a niche battery electric vehicle to be used by the local lifeguard at Brighton beach, he specialised in the drive cycle analysis and design of lightweight electric drivetrains. Previous to this, Josh was an avid member of the University of Brighton IMechE Formula Student team as a chassis kinematics engineer developing the front suspension system and his passion for vehicle design. At the AAPS he hopes to further explore the future of lightweight electric vehicle design, most prominently human-electric hybrid concepts, and the more comprehensive challenges this brings to the automotive sector.


  • Walked across england coast to coast (Hadrian's Wall)
  • Stayed in a tent for the start of University... Twice.
  • Was a session guitarist for the musical Grease for a month and now can't listen to any of it
  • Played double bass for the Norfolk County Youth Orchestra
  • Have owned more motorcycles than friends

Electric Motors with Reconfigurable Windings for Traction Drive Applications

The objective is to design a stator winding reconfiguration system which is commercially and technically attractive. The concept of reconfiguring the stator windings depending on the motor operating point is widely known to offer performance advantages in terms of motor efficiency and torque density for a given mass of rare earth magnets. From work carried out in the summer project it is also shown that there is potential to reduce the specification of power electronics.

Reconfiguration of windings between star and delta modes of operation is a common practice in industrial applications for start-up of induction machines, however commercial implementation of such systems for traction applications is almost non-existent owing to cost and packaging constraints. The objective is to develop and demonstrate such a system which could be commercially relevant in automotive traction motor applications, and to evaluate its efficacy.

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