IP Library Granted Patent US 12673548
Granted Patent B2
US 12673548 · App. 18/462,138 · Granted Jul 7, 2026

Radial wheel motor supported on auxiliary bearings in a parallel arrangement

Inventor: Kevin R. Williams (Waller, TX)
B60K7/0007B60K1/04B60L15/20B62D7/18H02K11/0094H02K21/14B60K2001/045
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Quick Facts
Patent No.
US 12673548
App. No.
18/462,138
Granted
Jul 7, 2026
Kind
B2
Abstract

A wheel assembly for a vehicle has a rotor housing adapted to be affixed to a non-rotatable portion of the vehicle, a stator housing adapted to be affixed to a wheel hub of the vehicle so as to be rotatable relative to the rotor housing, and an energy storage module affixed only to the stator housing. The stator housing has a support structure having a wheel rim. The rotor housing has permanent magnets therein. The stator housing has windings therein. The windings of the stator housing and the permanent magnets of the rotor housing define an air gap therebetween. The air gap extends concentric to an axis of rotation of the wheel hub. The wheel assembly is cooperative with the windings of the stator housing so as to receive energy from the windings and transmit energy to the windings relative to a motion of the vehicle.

Claims (22)

1 . A wheel assembly for a vehicle, the wheel assembly comprising:

a first housing having a torque restraint arm adapted to be affixed to a non-rotatable portion of the vehicle, said first housing having a support structure, said first housing having permanent magnets therein;

a second housing adapted to be affixed to a wheel hub of the vehicle so as to be rotatable relative to said first housing, said second housing having windings therein, wherein the permanent magnets of said first housing are positioned radially inwardly of the winding of said second housing, the windings of said second housing and the permanent magnets of said first housing defining an air gap therebetween, the air gap extending concentric to an axis of rotation of the wheel hub; and

an energy storage module affixed only to said second housing, said energy storage module being cooperative with the windings of said second housing and with the permanent magnets of said first housing so as to receive and transmit energy from and to the windings relative to a motion of the vehicle.

2 . The wheel assembly of claim 1 , further comprising:

a tire affixed to a wheel rim of said second housing.

3 . The wheel assembly of claim 1 , wherein the torque restraint arm has a mechanical or electromechanical quick-disconnect adapted to engage with the non-rotating portion of the vehicle.

4 . The wheel assembly of claim 1 , said energy storage module having an energy storage element selected from the group of capacitors, ultra-capacitors, chemical batteries, solid-state batteries and combinations thereof.

5 . The wheel assembly of claim 1 , wherein said energy storage module has an accelerometer, the accelerometer adapted to detect an acceleration or a deceleration of the vehicle.

6 . The wheel assembly of claim 5 , said energy storage module having control electronics therein, the control electronics adapted to transfer power from the energy storage module to the windings during the acceleration of the vehicle and to transmit power from the windings during the deceleration of the vehicle.

7 . An assembly comprising:

a vehicle having a plurality of wheel stations, each wheel station of the plurality of wheel stations having a wheel hub and wheel bearings and wheel bolts, the wheel hub being connected to a hub shaft; and

a wheel assembly affixed to at least one of the plurality of wheel assemblies, said wheel assembly being affixed to the wheel hub and bolted to the wheel bolts, said wheel assembly comprising:

a first housing affixed by a torque restraint arm to a non-rotatable portion of the vehicle, said first housing having a support structure, said first housing having permanent magnets therein;

a second housing affixed to the wheel hub of said vehicle so as to be rotatable relative to said first assembly, said second housing having windings therein, the windings of said second housing and the permanent magnets of said first housing defining an air gap therebetween, the permanent magnets of said first housing being positioned radially inwardly of the windings of said second housing, the air gap extending concentric to an axis of rotation of the wheel hub; and

an energy storage module affixed only to said second housing, said energy storage module being cooperative with the windings of said second housing and with the permanent magnets of said first housing so as to receive and transmit energy from and to the windings relative to a motion of the vehicle.

8 . The assembly of claim 7 , further comprising:

a tire affixed to a wheel rim of said second housing.

9 . The assembly of claim 7 , said energy storage module having an energy storage element selected from the group consisting of capacitors, ultra-capacitors, chemical batteries, solid-state batteries and combinations thereof.

10 . The assembly of claim 7 , wherein said energy storage module has an accelerometer, the accelerometer adapted to detect an acceleration or a deceleration of the vehicle.

11 . The assembly of claim 10 , said energy storage module having control electronics therein, the control electronics adapted to transfer power from the energy storage module to the windings during the acceleration of the vehicle and a transfer power from the windings during the deceleration of the vehicle.

12 . The assembly of claim 7 , wherein the non-rotatable portion of the vehicle is either a steering knuckle or a back of the wheel hub.