Application of neural networks to a disc motor with offset rotor

Axial field permanent magnet disc machines are attractive for direct wheel drives in electric vehicles because their stators can be mounted on the vehicle body whilst their rotor can be directly coupled to the driven wheel. However, this arrangement gives rise to torque pulsations in the drive due to the perturbation of the wheel by the road surface effects. The torque pulsations due to the rotor perturbation are subsequently eliminated by the modulation of the input motor current using a flux signal obtained from the neural network