Variable cross-section conductors to reduce alternating current losses for axial flux, radial flux and motors with skew

A vehicle electric motor system, comprising:

• an electric motor having:
• at least one rotor;
• and
• at least one stator;
• multiple permanent magnets positioned on the at least one stator;
• multiple windings mounted on the at least one rotor individually having a coiled conductor including multiple conductor elements, successive ones of the conductor elements varying in width,
• wherein the motor defines a radial flux motor,
• wherein the rotor includes an axial rotor skew,
• wherein the at least one rotor defines a first rotor and a second rotor, and the at least one stator defines a first stator and a second stator,
• wherein at least one of the multiple conductor elements positioned proximate to the first rotor and the second rotor and leaning toward a d-axis of the radial flux motor has a cross-section change on an axis of the electric motor, and
• wherein the at least one of the multiple conductor elements includes a continuous tapering body on the axis.

A method for reducing alternating current losses of a vehicle electric motor, comprising:

• producing an electric motor including mounting multiple windings on a first stator and an opposed second stator together defining a double stator;
• positioning the first stator and the second stator between a first rotor and a second rotor defining a double rotor;
• locating a first airgap between the first rotor and the first stator,
• and a second airgap between the second rotor and the second stator, the first airgap and the second airgap together defining a dual airgap;
• positioning multiple permanent magnets on the first stator and the second stator;
• mounting multiple windings on the first rotor and the second rotor;
• constructing individual coiled conductors for individual ones of the multiple windings having multiple conductor elements;
• and
• varying a width of individual ones of the multiple conductor elements.