Volvo will soon begin to test the benefits of adopting a carbon-fiber flywheel to the rear axle to reduce consumption by up to -20%, a solution that, according to the Scandinavian home, while providing the feeling of driving a 6 cylinder because the extra power generated by the device. The experimental project will begin in the fall with the Swedish contribution to the energy that has allocated € 740,000 to participate in the development of the second generation of energy recovery systems franante.
A project that involves the partnership between Volvo and the company SKF. The "flywheel KERS (Kinetic Energy Recovery System), as currently stated, is mounted at the rear and then fly away from the traditional, installed immediately behind the engine and front disc clutch. During deceleration, the braking energy is stored in the flywheel KERS, which begins to rotate up to 60,000 rpm.
When the car starts the energy stored in it is transferred to the rear axle through an auxiliary transmission mounted at this level. The internal combustion engine (attached to the front axle) is stopped when braking phase begins. At this point the kinetic energy accumulated in the flywheel KERS can be used to help accelerate the vehicle when it starts or to power the vehicle (and its on-board systems) when you reach cruising speed.
Obviously, since the energy supplied by a flywheel for a limited time (until the rotation is not exhausted), it can be used only for short periods, however, sufficient to dramatically reduce fuel consumption. The greatest benefits of the system are recorded, as one can easily imagine, in a guide full of brake-and-go or mixed routes.
If the power of the flywheel KERS is combined with that of the engine in its active phase (ie when the gas), there is a power of about 80 extra HP with clear benefits in terms of acceleration thanks to the torque transmitted by the rotating mass. Something conceptually similar to that made by Jaguar and Land Rover.
In the latter case, in practice, if the standard flywheel stores energy during the active phases of the engine and then return with the same effects regularizing the passive phases, the flywheel KERS works exactly the contrary accumulates energy in the passive phase of the engine (because the driver is braking, and therefore has no foot on the gas) and then return it in the active phase in the form of extra power.
Volvo tested the propulsion "flying assisted" in 1980 on 240: at the time the flywheel was made of steel. However, because of the latter material, the weight and size limited their rotation. Today, the flywheel KERS is made of CFRP, has a diameter of only 20 cm and rotates in a chamber dedicated external prevents friction that can compomettere the correct rotation. 
A project that involves the partnership between Volvo and the company SKF. The "flywheel KERS (Kinetic Energy Recovery System), as currently stated, is mounted at the rear and then fly away from the traditional, installed immediately behind the engine and front disc clutch. During deceleration, the braking energy is stored in the flywheel KERS, which begins to rotate up to 60,000 rpm.
When the car starts the energy stored in it is transferred to the rear axle through an auxiliary transmission mounted at this level. The internal combustion engine (attached to the front axle) is stopped when braking phase begins. At this point the kinetic energy accumulated in the flywheel KERS can be used to help accelerate the vehicle when it starts or to power the vehicle (and its on-board systems) when you reach cruising speed.
Obviously, since the energy supplied by a flywheel for a limited time (until the rotation is not exhausted), it can be used only for short periods, however, sufficient to dramatically reduce fuel consumption. The greatest benefits of the system are recorded, as one can easily imagine, in a guide full of brake-and-go or mixed routes.
If the power of the flywheel KERS is combined with that of the engine in its active phase (ie when the gas), there is a power of about 80 extra HP with clear benefits in terms of acceleration thanks to the torque transmitted by the rotating mass. Something conceptually similar to that made by Jaguar and Land Rover.
In the latter case, in practice, if the standard flywheel stores energy during the active phases of the engine and then return with the same effects regularizing the passive phases, the flywheel KERS works exactly the contrary accumulates energy in the passive phase of the engine (because the driver is braking, and therefore has no foot on the gas) and then return it in the active phase in the form of extra power.
Volvo tested the propulsion "flying assisted" in 1980 on 240: at the time the flywheel was made of steel. However, because of the latter material, the weight and size limited their rotation. Today, the flywheel KERS is made of CFRP, has a diameter of only 20 cm and rotates in a chamber dedicated external prevents friction that can compomettere the correct rotation.
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