Improvement of the Demagnetization State of an External Rotor In-Wheel Motor

Electric vehicles are used today for a greener world. The equipment used in an electric vehicle system is the battery, electric motor and driver, mechanical axle, and wheel. In order to eliminate the use of axles in this system, an in-wheel electric motor has been designed. Since demagnetization of magnets is a fundamental problem in in-wheel motors, improvements have been made to change the air gap flux. Within this scope, it has been studied on issues such as slot pole combinations, magnet sizes, air gap change, change the path of the magnetic circuit at the stator flux, and it has been ensured that the magnets are not demagnetized at maximum operating condition.