Robert Bosch Automotive Steering Vendome

Zf Systemes De Direction Nacam S.a.s.

Zf Systems De Direction Nacam S.a.s.

Nicolas Bertet

Vincent Eymery

Alexandre Sarandao

The invention relates to an electric locking system () for locking the position of a steering column of a vehicle relative to the dashboard of said vehicle, the steering column including a tube-body movably mounted in a supporting assembly for enabling the manual adjustment of said steering column. The locking system includes means () for locking the tube-body on the supporting assembly, an electric motor () coupled to the locking means () for driving the latter and placing the steering column in an unlocked state or a locked state, motor control means providing motor actuation instructions for placing the steering column in the locked state and/or in the unlocked state, and means for detecting the state of the steering column and for generating an electric signal representative of the state of the column.

System for electrically locking a steering column, and steering column including such a locking system

An adjustable steering column adjustable includes a steering shaft mounted in a body tube arranged in a movable support member and immobilized on a fixed support member by an electric clamping system. The clamping system is mounted in a casing supporting an electric actuator and includes a transmission mechanism, an immobilizing assembly and a clamping rod passing through the fixed support member. The immobilizing assembly includes a fixed cam rotationally fixed with respect to the clamping rod, and a rotationally movable cam, the cams having rolling paths for balls. Each rolling path has the shape of a spiral with an escape slope for a ball, in order to initiate clamping or unclamping depending on the rotation direction of the movable cam relative to the fixed cam.

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Nantes, France

Nicolas Bertet