Importance

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Abstract

The invention relates to a torque transmission unit for a motor vehicle with a permanently driven primary axle and a switchable secondary axle, comprising a first connecting part and a second connecting part. The invention furthermore comprises several lamellas that are divided into primary lamellas and secondary lamellas in an alternating arrangement. The unit further comprises a planetary gear system, comprising an at least first gear element, rotationally connected with the first connection part, a second gear element, rotationally connected with the second connection part, and a third gear element, rotationally connected with the primary lamellas. The secondary lamellas are rotationally connected with the first connection part, the second connection part or with a stationary housing part. The torque transmission unit further comprises at least one electric coil for producing a magnetic field, acting on a magnetorheoplogical medium, wherein each primary lamella and secondary lamella is surrounded at least on two sides by the magnetorheological medium. The planetary gear system induces a torque of the primary lamellas into acceleration with a turning movement of the second connecting part in relation to the first connecting part.

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First Claim