Optimal design of an axial-flux permanent-magnet motor for an electric vehicle based on driving scenarios

Abstract

This paper proposes a driving-scenario oriented optimal design of an axial-flux permanentmagnet (AFPM) motor for an electric vehicle. The target torque and speed (TN) curve is defined as three operation zones-constant torque, maximum direct current, and maximum voltage-based on the driving scenario. The AFPM motor is designed to minimize energy consumption based on the motor weight and the frequent operating points of a driving cycle. The final result shows that the electric vehicle driven by the proposed AFPM motor consumes about 15% less energy than motors designed using traditional methods.