Inventing the wheel all over again

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On the occasion of the climate change conference MIT introduced The Copenhagen Wheel. It's a wheel that turns your bike into a hybrid, collecting energy from regenerative braking and distributing it when you need a boost. It can also be used as a personal trainer when used with the iPhone.

"The Wheel uses a technology similar to the KERS (Kinetic Energy Recovery System), which has radically changed Formula One racing over the past couple of years," says Ratti. "When you brake, your kinetic energy is recuperated by an electric motor and then stored by batteries within the wheel, so that you can have it back to you when you need it. The bike wheel contains all you need so that no sensors or additional electronics need to be added to the frame and an existing bike can be retrofitted with the blink of an eye."

The project also aims to create a platform for individual behavioral change.

"The Copenhagen Wheel is part of a more general trend: that of inserting intelligence in our everyday objects and of creating a smart support infrastructure around ourselves for everyday life," says Assaf Biderman, associate director of the project. "For example, the Wheel has a smart lock: if somebody tries to steal it, it goes into a mode where the brake regenerates the maximum amount of power, and sends you a text message. So in the worst case scenario the thief will have charged your batteries before you get back your bike."

It is expected that the wheel will go into production next year, with a tag price competitive with that of a standard electric bike.




Via: MIT media relations

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