A wheeled vehicle is disclosed where that vehicle includes at least one
disk, i.e. wheel, and a plurality of permanent magnets disposed around
that wheel. The vehicle further includes a frame, where the wheel is
rotatably connected to that frame. The vehicle further includes a source
of electric power, and one or more electromagnet assemblies, each
assembly comprising a first electromagnetic pole and a second
electromagnet pole, where the first electromagnet pole and the second
electromagnet pole are separated by a gap, and where one or more
electromagnet assemblies are disposed on the frame such that each of the
plurality of permanent magnets sequentially passes through the gaps in
each assembly as the wheel rotates. The vehicle further includes a
control unit capable of receiving power from the power source and
selectively providing power to the one or more electromagnet assemblies.