Axial flux motor having rotatably coupled coil stator assemblies and methods of using same
AssigneeIndigo Technologies, Inc.
InventorsIan W. Hunter, Timothy A. Fofonoff, Peter Madden, Dean Ljubicic, Thomas Moriarty, Scott T. Purchase
Life of this patent
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Abstract
An electric motor including: a hub assembly defining a rotational axis; a magnetic rotor assembly; a first coil stator assembly; a second coil stator assembly; and a system of rotor bearings rotatably supporting each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly on the hub assembly so that each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly are rotatable about the rotational axis independently of each other.
Claims20
An electric motor comprising:
- a hub assembly defining a rotational axis;
- a magnetic rotor assembly;
- a first coil stator assembly;
- a second coil stator assembly;
- and
- a system of rotor bearings rotatably supporting each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly on the hub assembly so that each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly is rotatable about the rotational axis, the first coil stator assembly being rotatably coupled to the second coil stator assembly.
An electric drive system comprising:
- a magnetic rotor assembly rotatable about a rotational axis;
- a first coil stator assembly, coaxially aligned with and rotatable about the rotational axis, to exert a first torque on the magnetic rotor assembly;
- a second coil stator assembly, coaxially aligned with and rotatable about the rotational axis, to exert a second torque on the magnetic rotor assembly;
- a support structure movably coupled to the first coil stator assembly and the second coil stator assembly;
- and
- an actuator, operably coupled to the support structure, to apply a preload to at least one of the first coil stator assembly or the second coil stator assembly, the preload increasing a ride height of a chassis coupled to the support structure.
A method of operating an electric drive system comprising:
- A) applying a first torque to a magnetic rotor assembly using a first coil stator assembly on a first side of the magnetic rotor assembly;
- B) while applying the first torque, applying a second torque to the magnetic rotor assembly using a second coil stator assembly on a second side of the magnetic rotor assembly;
- C) in response to the first and second torques being applied to the magnetic rotor assembly, at least one of (C1) rotating the magnetic rotor assembly about a rotational axis defined by a hub assembly coupled to the magnetic rotor assembly or (C2) moving the rotational axis of the hub assembly along a defined path that is in a transverse direction relative to the rotational axis;
- and
- D) in response to the first and second torques being applied to the magnetic rotor assembly, coupling motion of the first coil stator assembly to the second coil stator assembly.
Dependencies are inferred from the claim text.