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 |  May 26 2011, 4:22 PM

Volvo has announced plans to develop and test a new flywheel kinetic energy recovery system. Volvo says the KERS system (or FKERS as Volvo calls it) is “a light, cheap and very eco-efficient solution that makes a four-cylinder engine feel like a six at the same time as fuel consumption drops with up to 20 percent.”

The KERS system is fitted to the rear axle of the car (displayed in video). When braking, the energy causes the flywheel to spin at up to 60,000 revs per minute. When the car starts moving again, the flywheel’s rotation is transferred to the rear wheels via a specially designed transmission. This will allow fuel efficiency to improve by 20%. Horsepower and acceleration are also improved under this system.

Volvo is planning to begin testing the system later this year with the hopes of launching it ”within a few years.”

Check out the video after the jump!

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