Magneto rheological damper

A magnetorheological damper or magnetorheological shock absorber is a damper filled with magnetorheological fluid, which is controlled by a magnetic field, usually using an electromagnet. This allows the damping characteristics of the shock absorber to be continuously controlled by varying the power of the electromagnet. This type of shock absorber has several applications, most notably in semi-active vehicle suspensions which may adapt to road conditions, as they are monitored through sensors in the vehicle, and in prosthetic limbs.

Vehicles
These types of systems are available from OEMs for several vehicles, including the Acura MDX, Audi TT, BMW's with EDC, Audi R8, Buick Lucerne, Cadillac DTS, Cadillac XLR, Cadillac SRX, Cadillac STS, Chevrolet Corvette, Ferrari 599 GTB, and Holden HSV Commodore. These systems are produced by the Delphi Corporation under the proprietary name MagneRide.