eRockit-a "new" category of 2 wheeled transport

[machiasmort]

I'm more intregued by the technology. Does anybody know how this is achievable? Seems almost like he using the motor as a flywheel. Supposed if you geared it correctly, you'd get alot of torque?

 

[johnrobholmes]

Two easy ways to do it. First is to drive a small motor with a bank of fets that vary the load. The higher wattage in, the higher wattage the drive motor is powered.


Second way, Use a magnet ring and hall effect sensor to determine cadence. Higher cadence is higher drive motor speed. Pedals can be attached to anything that creates linear resistance, like a friction plate.

 

[machiasmort]

John, I appreciate your attempt, but thats beyond my capability of understanding! I know a little about electronics but what your describing sounds complex. I was thinking maybe they were using the torque of the motor inorder to shift gears easier, hence making higher gears achievable w/ human strength.