Patent ID: 7331419

Claim:
A steer-by-wire system comprising: a hydraulic control unit that acts on steerable wheels 1 , wherein said control unit has at least one cradle which is adapted to adjust said steerable wheels directly or via tie rods; at least one guide rod, wherein said at least one cradle is displacebly mounted on said at least one guide rod, which in particular passes through a respective one of said cradles, wherein said at least one cradle together with said at least one pertaining guide rod ,form working chambers of a piston-cylinder system, wherein said at least one guide rod is a tube and has at least one channel which respectively ends in a vicinity of one of said working chambers, wherein a first channel is formed by said tube itself; and an inner tube disposed in said first channel, wherein said inner tube has an outer diameter that is less than an inner diameter of said first channel, and wherein said inner tube forms a second channel.