| 摘要 |
An axial flux electric motor comprising a rotor and a first and second stator. The first and second stators have a first and second air gap located between the first and second stators and the rotor, respectively, and the second air gap is greater than the first gap. In one embodiment, the wiring of the first stator and the wiring of the second stator are in parallel. The motor further comprises switches which alternatingly energize the wiring of the first stator and the wiring of the second stator based upon required torque and required speed of the motor. In a second embodiment, the wiring of the first stator and the wiring of the second stator are in series and the motor further comprises switches which selectively bypass the wiring of the first stator in order to reduce the back EMF of the motor and increase the maximum speed of the motor at a given input voltage. This embodiment also applies to dual stator axial flux motors with equal air gaps.
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