MIT’s Copenhagen Bike Wheel
Green Car Congress
DECEMBER 17, 2009
The hub contains a motor, 3-speed internal hub gear, batteries, a torque sensor, GPRS and a sensor kit that monitors CO, NO x , noise (db), relative humidity and temperature. Pedal backwards, and the regenerative braking is engaged, helping to recharge the system’s batteries; pedal fast, and you get the extra boost of power.
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