Thyssenkrupp Presta Ag

Thyssen Krupp Ag

Philippe Steck

Wolfram Raither

Patrick Baumgartner

Kristof Polmans

Alexander Kiforiuk

Katrin Blank

Thomas Riepold

Dennis Kontner

Jules Ngamga Nzepa

Daniel Meyer

Francisco Asensio

A steering gear for a steer-by-wire steering system of a motor vehicle may include a hollow shaft motor with a stator that is fixed to a housing and a rotatably supported rotor that is arranged coaxially with respect to a longitudinal axis. A worm gear may extend through the rotatably supported rotor. The worm gear comprises a spindle nut that is arranged coaxially relative to the longitudinal axis, that is connected in terms of driving to the rotor, and that is located on a spindle that is displaceable by way of the hollow shaft motor along the longitudinal axis. The angle of inclination of the worm gear may be less than 4.5°.

Steer-by-wire steering gear having a hollow shaft motor and a ball screw drive

A steering gear for a steer-by-wire steering system of a motor vehicle may include a coupling rod mounted in a steering gear housing. A threaded spindle may be formed on the coupling rod and surrounded by a spindle nut as part of a spiral gear. The coupling rod may be displaceable along a longitudinal axis by way of the spiral gear. The coupling rod can be mounted in the steering gear housing by way of a plain bearing so as to be displaceable along the longitudinal axis. The plain bearing is configured to compensate for thermal expansions between the steering gear housing and the spindle nut.

Plain bearing for a coupling rod of a steer-by-wire steering gear

A steering gear for a steer-by-wire steering system of a motor vehicle may include an electric motor having a motor shaft. The motor shaft drives a spindle of a worm gear, and the worm gear comprises a spindle nut in such a manner that a rotational movement originating from the motor shaft is converted into a linear movement of the spindle nut along an axis. The spindle nut, for purposes of steering wheels of the motor vehicle, is connected to at least one tie rod. The worm gear may be a ball screw drive, a trapezoidal drive, or a roller screw drive.

Steering gear for a steer-by-wire steering system

A method for assembling a rack-and-pinion steering gear may involve introducing a steering pinion into a housing opening of a steering gear housing such that a region of a narrowed portion of a pinion shaft is situated at a level of a rack to be inserted, introducing the rack into the housing opening of the steering gear housing such that the rack is pushed past the narrowed portion of the pinion shaft into a setpoint position, and moving the pinion shaft farther into the steering gear housing to an end position such that a toothing region of the rack enters into engagement with a toothing of the steering pinion.

Method for the simplified assembly of a rack-and-pinion steering box of a rack-and-pinion steering system

A rack and pinion steering system for a motor vehicle may include a pinion shaft that is connected to a steering shaft and has a steering pinion that is engaged with a rack mounted in a steering gear housing such that the rack can be displaced along a longitudinal axis for pivoting steerable wheels. The steering shaft, the pinion shaft with the steering pinion, and the step-down gear mechanism may be received in the steering gear housing. The rack and pinion steering system may further include an electric motor that drives the pinion shaft via a step-down gear mechanism. The step-down gear mechanism may be arranged at an end of the pinion shaft that is remote from the steering shaft.

Rack-and-pinion steering system for a motor vehicle having a worm gear set

A steer-by-wire steering system for motor vehicles may include a primary steering level with a steering transmission device, which is arranged to subject wheels of the motor vehicle to a desired setpoint steering effect, and a secondary steering level with a safety device that provides predefined functions, so that in the case of a malfunction of the primary steering level, steering the wheels remains possible during an emergency mode. The steer-by-wire steering system may also include an authentication system with a communications interface for communications with the safety device. The authentication system may be arranged so that in the case of a successful authorization, the secondary steering level of the steer-by-wire steering system is also available after the emergency mode.

Transport key for a steer-by-wire steering system for motor vehicles

A rack and pinion steering gear for a motor vehicle may include a steering pinion, which is connected to a steering shaft and is engaged with a gear rack that is movably mounted in a housing, and may further include a pressure piece arranged in the housing in a pressure piece bore, and which may keep the gear rack engaged free from play with the steering pinion. A pressure piece for a rack and pinion steering gear may include an outer metallic casing inserted with a press fit into the pressure piece bore, at least one elastomer damping element, in particular an elastomer casing, arranged in the metallic casing, with a metallic pressure piece core enclosed by the at least one elastomer damping element.

Toothed-rack steering gear

Ball screw comprising a ball nut (), which is rotatably mounted on a threaded shaft and on the inner circumference of which at least one ball thread () wound around an axis () in a coil shape is provided for balls () to roll on, wherein at least one recirculating element (), which is arranged on the outer circumference of the ball nut () and which is provided with a recirculating channel for the balls (), connects a start of a coil to an end of a coil of the ball thread by means of the two ends of the recirculating element in order to enable endless recirculation of the balls (), wherein the ball nut () is provided with a flange () for fastening a belt pulley () and with a bearing seat (), and a sleeve () pushed onto the ball nut is provided with a perfectly cylindrical outer circumferential surface, which outer circumferential surface secures the recirculating element () on the ball nut () and surrounds the ball nut () in a tubular shape between the flange () and the bearing seat ().

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Gamprin-Bendern, Liechtenstein

Philippe Steck