Analytical Design of a High Torque Density In-Wheel YASA AFPM Motor

An analytical design approach of a YASA Permanent magnet in-wheel motor for automotive applications is presented. Making use of the sizing equations, some key design parameters are linked to the heat transfer thermal circuit equations. The procedure allows to retrieve the design quantities which satisfy both the thermal and electromagnetic constraints. Finally, an approach to obtain the winding data and a brief analysis of the overload thermal condition is presented