7th of November 2017, Manufacturing Technology Centre, Midlands, UK


The conference is dedicted to e-Motor Multi-Disciplinary Optimization for electric vehicle traction, employing advanced electromagnetic and multi-physics tools.

The OSEM-EV Member University of Sheffield presented a talk on “A computationally efficient multi-physics optimisation technique for permanent magnet machines in electric vehicle traction applications”. The presentation describes a computationally efficient optimisation technique for permanent magnet machines in electric vehicle (EV) traction applications. It addresses multi-physics machine designs against driving cycles, including inverter-machine system energy efficiency, thermal behaviours and mechanical stress in rotor lamination. To drastically reduce computation time of repeated finite element analysis (FE) of the non-linear electromagnetic field and mechanical stress in permanent magnet machines especially interior permanent magnet machines (IPM), a set of analytical machine models characterised from FE calculations are developed which lead to significant reduction in computation time without compromising accuracy during an optimisation. The proposed technique is applied to a multi-physics design optimisation of an IPM machine for EV traction against 6-8 leading design parameters, and is validated by a series of tests on a prototype machine.

The conference provided an important forum for industrialists and academics to learn and discuss this important area of e-motor design for electric vehicle traction.