R-Walker Selfsustaining Free Energy bike from Mexico

[fritz]

What is it ? (ignoring everything translated)
Its an electric scooter "r-walker" - and I would expect that it is not meant to run faster as maybe 8km/hr or 5miles/hr - because its an "r-walker".
Running on a flat surface without wind - there will be little impact from aerodynamics, just bearing friction, deformation of tire, compensate eccentricity of tire.
The battery used looks somehow like a 10AH, 12V lead acid type - so we are talking about 100Wh energy.
If we take a DC motor, designed for 100-200 Watts - it might work quite efficient in the range 20-50Watts.
A set of 2 1,5F caps can store an energy of 36Ws.
Using such caps in parallel with the motor will recover energy drawn by eccentricity of tire, energy consumed by bumps (stored in pretty undamped suspension).
Maybe its possible to get the average wattage needed for such drive down to 20-30Watt for this speed on a flat surface.
Without cap - probably 60-80 Watt.
This would give you up to 5hrs of driving - instead of 1-2hrs without caps.
Using fat tires on real surface even reduces rolling resistance.
We will see.
60 km with 100Wh at 10km/hr would be 6hrs@16Watt.
I found some table with 5W@10km/h caused by air resistance.
15-25W rolling resistance for such tires would be feasible.

[Void]

Also, I was thinking that maybe it is using something like Tommy Reed's "Pedal By Wire" system and, to charge up the system, all you need to do is use it like
a stationary exercise bike and pedal for so many minutes to charge the battery.  Then, flip the switch and drive off.  They might consider that self sustaining.
Maybe like a hand crank radio that never needs batteries...as long as you crank it once in a while?

The bike has no pedals on it, so pretty hard to pedal charge the bike when it has no pedals.
In some news reports the inventors have said the bike requires no gas and no external charging. They have
said that it is self charging. If they are not using solar panels to help recharge the battery, then all self-charging
must come from the dynamo (generator) that is mounted on the bike. There have been no technical details described
that I have found so far that explain how this 'self sustaining recharge' is supposed to work.

[Void]

A set of 2 1,5F caps can store an energy of 36Ws.

Watts is an indication of rate of energy production or consumption, i.e. power, not a measure of energy.
Two 1.5F caps in parallel at 12 Volts can store a total of 216 Joules of energy.
You could draw 1 Watt of power off those caps for 3.6 minutes, at which point the caps
would be completely drained, if they were not being recharged at the same time.
There is only a relatively small amount of power available from the super caps when they are fully charged up.
The power requirement to run the bike's electric motor will likely be quite a lot higher than 1 watt.  That
would be a pretty substantial drain on the battery shown mounted on the bike, so there would have to
be a fairly high charge current going to the battery when the bike is running to keep the
battery charged up. We know it has a generator, but still a bike self powering its own generator
would of course not normally be self sustaining. We are still missing some very key technical information on
how the bike is supposed to be able to charge itself. Unless they are taking some portable solar panels and
recharging the battery when the bike is parked, it is still a mystery how the bike is supposed to be self sustaining.

[lancaIV]

8 Km/h would be a joke,this is the velocity for kids battery sourced evehicle !

[fritz]

Watts is an indication of rate of energy production or consumption, i.e. power, not a measure of energy.
Two 1.5F caps in parallel at 12 Volts can store a total of 216 Joules of energy.
You could draw 1 Watt of power off those caps for 3.6 minutes, at which point the caps
would be completely drained, if they were not being recharged at the same time.
There is only a relatively small amount of power available from the super caps when they are fully charged up.
The power requirement to run the bike's electric motor will likely be quite a lot higher than 1 watt.  That
would be a pretty substantial drain on the battery shown mounted on the bike, so there would have to
be a fairly high charge current going to the battery when the bike is running to keep the
battery charged up. We know it has a generator, but still a bike self powering its own generator
would of course not normally be self sustaining. We are still missing some very key technical information on
how the bike is supposed to be able to charge itself. Unless they are taking some portable solar panels and
recharging the battery when the bike is parked, it is still a mystery how the bike is supposed to be self sustaining.

agree.
I would simply think about a super-cap-buffered dc motor, having an interesting operation point@ 2000rpm.
Maybe its possible to reduce systematic and frequent losses by a third using that buffering !?