The following text uses the word Car but should be
as any motorized vehicle regardless of number of
wheels or size. Bicycles, trains, trucks and helicopters
This is a standalone engine inside a wheel working
no connections to the vehicle's external
consists of batteries, a brushless electric motor, two
flywheels and a magnetic "clutch" system.
The electric motor is set between the two flywheels -
one serving as the electric motor stator, the other as
There is a magnetic clutch between the left flywheel
and the left side of the car wheel, and another
magnetic clutch between the right flywheel and the
right side of the car wheel.
The magnetic clutching works
- either by electromagnets which cause pull and
attachment between the flywheel and car wheel
-or with permanent magnets, which cause pull and
attachment between the wheel and flywheel, when
car wheel's magnets are physically pulled closer or
further from the flywheel.
When starting, both clutches are free of the car
The flywheels begin turning in opposite directions
because of the motor.
Gradually powering the left clutch, which connects
left flywheel #1 to the car-wheel, causes all the
to pass to the other free flywheel (#2). Meanwhile,
wheel stays stationary because of friction or a light
press on the breaks.
Now we have only the right flywheel (#2) moving in
forward direction (say clockwise). With the motor
giving it power.
(The same affect can be achieved if the left flywheel
clutched in advance, and then the motor will simply
pushing the right flywheel)
Once the right flywheel is at high speed, by partially
clutching the right flywheel #2 (the only one
moving) to the right of the car wheel, power is
gradually passed to the car wheel which moves
forward. The left flywheel is still clutched tightly to
the left part of the wheel and the electric motor
continues to add power to the flywheel.
If this doesn't work (expecting the annos to explain
why) the motor could be powered down in effect
causing the two flywheels to be detached, the left
turning slowly at the wheel's speed while the right
flywheel moving rapidly, and slowly transferring its
power to the car wheel. This process could be
When the right flywheel slows down and reaches a
threshold (say only 100 times the speed of the wheel)
the left clutch is released, and the electric motor
the right flywheel up to speed again.
Regenerative braking and self acceleration:
(1) When the accelerator switch is not being pressed
(2) when downhill and wheel is accelerating more
the power being put in, and (3) in particular when the
brakes are pressed, the left clutch is released, in
causing the right flywheel to slow down, to a speed
close to the speed of wheel itself, while the left
flywheel reverses direction and begins accelerating in
the opposite direction.
Once reaching a certain threshold (say 50 times the
wheel speed) the left flywheel clutch is activated,
which gradually slows down the wheel movement.
Once the wheel reaches threshold speed, both
flywheels are released and the energy is added back
into the two flywheels, by the electric motor.
Once reaching a safety margin of speed the motor is