Thyssenkrupp Presta Ag

Thyssen Krupp Ag

Thyssenkrunn Ag

Jean-Pierre Specht

Sebastian Huber

Arne Schacht

Tim Bayer

Andreas Willi

Simon Blaettler

Christoph Munding

Simon Blättler

Sascha Rist

Walter Lampert

Anton Spildenner

Simon BLÄTTLER

Christoph Nessler

Mathias Lins

A feedback actuator for a steering device of a motor vehicle may include a steering shaft that is mounted so as to be rotatable about a longitudinal axis extending in a longitudinal direction and that, by way of a belt drive, is coupled to a motor shaft of an electric motor so as to be able to be rotatably driven. The belt drive may have at least one pair of belt pulleys having two belt pulleys that are wrapped by a belt. One of the belt pulleys may be operatively connected to the motor shaft and one may be operatively connected to the steering shaft. The two belt pulleys of the pair of belt pulleys may be disposed so as to be mutually coaxial or at a mutual angle.

Feedback actuator for a steering device of a motor vehicle and steering column for a motor vehicle

The invention relates to an adjustment drive () for a motor-adjustable steering column () for a motor vehicle, comprising a gearbox () having a drive module () in which a drive wheel () which is able to be driven in a rotating manner about a drive axis (A) and which operatively engages with a gearbox wheel () that is mounted in a gearbox module () so as to be rotatable about a gearbox axis (G) and is connected to a threaded spindle () or a spindle nut () of a spindle drive is mounted, wherein the drive module () and the gearbox module () are connected to one another by way of at least one joining connection (). In order for the joining connection () to be able to be generated with less complexity in terms of machining and assembling in a reproducible manner, it is proposed according to the invention that the drive module () and/or the gearbox module () for bracing the drive module () and the gearbox module () in the region of the joining connection () have/has at least one elastic tensioning element ().

Adjustment drive for a steering column, drive unit for an adjustment drive, motor-adjustable steering column for a motor vehicle, and method for producing an adjustment drive for a steering column

The present invention relates to an electrically adjustable steering column for a motor vehicle, comprising a supporting unit, by which a positioning unit is adjustably held, an adjustment device with an adjustment motor, said adjustment device being designed for adjusting the positioning unit relative to the supporting unit, a mechanical adjustment stop, which mechanically limits an adjustment of the positioning unit in a first adjustment direction, and a control unit. The control unit is designed here to activate the adjustment motor, wherein a virtual adjustment stop is defined, said adjustment stop being located upstream of the mechanical adjustment stop with respect to the first adjustment direction. The steering column is designed here for adjusting a positioning unit.

Method and electrically adjustable steering column for adjusting a positioning unit of a steering column

A coupling element for fitting to a threaded spindle. The coupling element has a receiving portion which is formed integrally with a coupling portion. The receiving portion extends in a hollow-cylindrical manner along an axis having an axial receiving opening for receiving the threaded spindle, and the coupling portion is flattened transversely with respect to the axis relative to the receiving portion and has a connection means. In order to be able to produce a coupling element in a more efficient and flexible manner, the receiving portion and the coupling portion be formed from a continuous integral pipe portion, wherein the coupling portion has a pressing portion in which the pipe portion is plastically compressed flat transversely relative to the axis.

Coupling element for attaching to a leadscrew, leadscrew having a coupling element, spindle drive having a leadscrew, and steering column for a motor vehicle having a spindle drive

An adjustment drive for a steering column of a motor vehicle may include a threaded spindle having an external thread, engaging with a corresponding internal thread of a spindle nut. A thread tooth of the external thread and a thread groove of the internal thread have corresponding axially sliding thread flanks that are braced against each other. At least one thread flank comprises at least one recessed lubricant uptake.

Adjustment drive for a steering column and steering column for a motor vehicle

An adjusting drive for a motor-adjustable steering column may include an outer threaded spindle that has an external thread that engages with a spindle nut and that has an internal thread that is engaged by an inner threaded spindle. The spindle nut, the outer threaded spindle, and the inner threaded spindle can be driven in rotation relative to one another about an axis by a motor-type drive unit. The adjusting drive may also include a blocking device that is switchable between a first position and a second position. In the first position the outer threaded spindle is locked together with the spindle nut for conjoint rotation. In the second position the outer threaded spindle is locked together with the inner threaded spindle for conjoint rotation.

Steering column for a motor vehicle

An adjustment drive for a steering column for a motor vehicle may include a housing that is able to be connected to the steering column, in which a gear wheel that is able to be rotatingly driven by a motor is mounted in a bearing assembly so as to be rotatable about a spindle axis, and on which a threaded spindle that engages in a spindle nut is axially supported in a direction of the spindle axis. To enable less complexity in manufacturing and assembling, an energy absorbing installation is disposed between the threaded spindle and the housing. When repositioning the threaded spindle relative to the housing in the direction of the spindle axis, the energy absorbing installation is configured to absorb kinetic energy.

Adjustment drive for a steering column, and steering column for a motor vehicle

A motor adjustment drive for a vehicle steering column includes a threaded spindle with an axis. The threaded spindle engages a spindle nut. A drive unit and a gear wheel which is connected to the spindle nut or the threaded spindle for rotation therewith is driveable to rotate by the drive unit and is rotatably mounted in a bearing housing between two outer bearing rings that are axially supported at the bearing housing. The outer bearing rings each have, on their sides facing one another, a circumferential outer bearing face that is coaxial to the axis. Each outer bearing face lays opposite a bearing face embodied on the end side at the gear wheel. An outer bearing ring is axially resiliently supported at the bearing housing via an elastic element, which exerts an axial force that biases the two outer bearing rings toward each other.

Adjustment drive for a steering column, motor-adjustable steering column for a motor vehicle, and method for adjusting a bearing assembly of an adjustment drive

An adjustment drive for a motor-adjustable steering column for a motor vehicle includes a drive unit having a transmission in which there is mounted a drive wheel. The drive wheel can be driven to rotate about a drive axis and is in operative engagement with a transmission wheel which is mounted in the transmission so as to be rotatable about a transmission axis. The transmission has a drive module, which includes the drive wheel, and a transmission module, which includes the transmission wheel. The drive module and the transmission are connected to one another by a joining connection.

An adjustment drive for a steering column may include a drive unit having a threaded spindle that is supported in a gearbox housing at a bearing portion so as to be rotatable, with the threaded spindle including a threaded portion with a spindle thread that is axially adjoined to a shaft portion on which a gear wheel is arranged in a rotationally secure manner. The gear wheel meshes with a drive wheel that is coupled to a motor. Between the threaded portion and the gear wheel a peripheral bearing groove with a groove base may extend between groove flanks thereof. The bearing portion may be disposed in the bearing groove in a region of the groove base, and the bearing portion may be supported in a sliding manner in a bearing opening of a bearing plate that engages radially in the bearing groove.

An adjustment drive for a motor-adjustable steering column for a motor vehicle, includes a spindle drive having a threaded spindle which engages in a spindle nut which, so as to be able to be driven in a rotating manner about the spindle axis relative to the threaded spindle, is coupled to the rotor shaft of a drive motor which has a rotor and a stator. In order to enable a compact design with minor complexity, the rotor shaft of the drive motor is configured as a hollow shaft which is disposed so as to be coaxial with the spindle axis and in which the threaded spindle is coaxially disposed.

An adjusting drive for a steering column for a motor vehicle may include a threaded spindle that by way of an external thread engages in a spindle nut. The adjusting drive may also include a drive motor that is coupled to the threaded spindle or the spindle nut such that driving at least one of the threaded spindle or the spindle nut with the drive motor causes the threaded spindle and the spindle nut to rotate relative to one another. To reduce production complexity and improve functionality, the threaded spindle may have a core element that at least in portions is coaxially surrounded in a fixed manner by a threaded element that is configured from plastic and comprises the external thread.

Adjusting drive for a steering column and steering column for a motor vehicle

A gear wheel for an adjustment drive mechanism which has a ring gear which is attached coaxially circumferentially to the outside of a core element which has an axial passage opening, in which a threaded element is fitted, the latter having an axially continuous internal thread having at least one thread tooth running around helically. The threaded element is formed from a plastic as an injection molded plastic part, which is molded onto the core element on an inner wall of the passage opening.

Gear wheel of an adjustment drive mechanism for a steering column and steering column for a motor vehicle

An adjusting drive for a motor-adjustable steering column for a motor vehicle, includes a motorized drive unit and an external threaded spindle which has an external thread and a coaxial internal thread into which an internal threaded spindle engages. The external threaded spindle and the internal threaded spindle can be driven in rotation relative to one another about an axis by the drive unit. In order to provide an adjusting drive which requires a reduced drive torque and delivers an optimized free adjustment path, the external threaded spindle engages with its external thread in a drive nut, wherein the drive nut or the internal threaded spindle is able to be driven in rotation by the drive unit and is supported relative to the drive unit in the direction of the axis.

A vehicle steering column includes a support unit and by which an actuator unit is held in which a steering spindle is mounted to rotate about a longitudinal axis. An adjustment drive is disposed between the support unit and the actuator unit and by which the actuator unit is adjustable. The adjustment drive has a threaded spindle which engages in a spindle nut and has a spindle axis. The spindle nut and the spindle are drivable by a servomotor to rotate in a mutually relative manner. The servomotor has a motor shaft which is coupled to a drive gear which is rotatable about a drive axis and which operatively engages with an output gear which is rotatable about the spindle axis and is connected in a rotationally fixed manner to the spindle nut or the threaded spindle. The drive axis and the spindle axis are disposed mutually parallel.

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Haag, Switzerland

Jean-Pierre Specht