Design of an Electronic Direct Drive Automotive Differential using Axial Flux PSMS with Sensorless Direct Torque and Flux Control

Today, power electronics and digital computing together with electric drives technology are enabling new solutions for more controllable and efficient transportation systems. In this paper, we propose a new solution for the replacement of the traditional (mechanical differential) with an electronic differential based on the use of dual motors with axial flux PMSM. The control method of the two axial flux PMSM rotors is based on a direct flux and torque method. The direct torque and flux control method applied to the axial flux PMSM machine is capable of providing the necessary dynamical performance during transient regimes.