Patents by Inventor Wolfram RAITHER
Wolfram RAITHER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20260084743Abstract: A steering actuator for a steering system of a motor vehicle comprises an actuator rod which is linearly movable translationally axially in its longitudinal direction relative to a sliding bush and which has a measuring portion which is displaceably mounted in an opening in the sliding bush, further comprising a drive device, wherein the measuring portion and the sliding bush have a sensor apparatus which is designed to detect at least one actuator parameter. In order to allow a lower level of expenditure on design and manufacture and improved flexibility in terms of application, the invention proposes that a sliding sleeve, which extends in the longitudinal direction over the measuring portion, is fitted on the actuator rod.Type: ApplicationFiled: September 24, 2025Publication date: March 26, 2026Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Philippe STECK, Wolfram RAITHER, Lukas MAZZA
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Patent number: 12534130Abstract: A steering actuator for a steering system for a motor vehicle may include an actuator rod that can be displaced in translation in a longitudinal direction thereof and a position sensor apparatus that is constructed to detect a linear position of the actuator rod. In order to enable less complex production and a higher level of operational reliability, the position sensor apparatus may include a rotation sensor that has a sensor shaft that can be rotated about an axis and that has a running wheel that can roll on a corresponding linear track of the actuator rod to convert a translational movement of the actuator rod into a rotation of the sensor shaft.Type: GrantFiled: May 25, 2022Date of Patent: January 27, 2026Assignees: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Luca Malacci, Wolfram Raither
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Publication number: 20250171075Abstract: A method for measuring a rack force acting on a rack of a steering mechanism of a steering system for a motor vehicle, in which the rack is movable in a longitudinal direction in the steering mechanism and is coupled to at least one steerable wheel via at least one track rod, comprises measuring the rack force as a reaction force between the steering mechanism and a body part supporting the steering mechanism in the longitudinal direction, thus permitting a simple and robust determination of the rack force.Type: ApplicationFiled: November 25, 2024Publication date: May 29, 2025Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Riccardo FICCA, Wolfram RAITHER
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Patent number: 12103604Abstract: 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°.Type: GrantFiled: August 20, 2019Date of Patent: October 1, 2024Assignees: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram Raither, Philippe Steck
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Patent number: 12071178Abstract: 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.Type: GrantFiled: October 4, 2019Date of Patent: August 27, 2024Assignees: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram Raither, Philippe Steck
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Patent number: 12060114Abstract: 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.Type: GrantFiled: August 9, 2019Date of Patent: August 13, 2024Assignees: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram Raither, Philippe Steck
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Publication number: 20220379961Abstract: A steering actuator for a steering system for a motor vehicle may include an actuator rod that can be displaced in translation in a longitudinal direction thereof and a position sensor apparatus that is constructed to detect a linear position of the actuator rod. In order to enable less complex production and a higher level of operational reliability, the position sensor apparatus may include a rotation sensor that has a sensor shaft that can be rotated about an axis and that has a running wheel that can roll on a corresponding linear track of the actuator rod to convert a translational movement of the actuator rod into a rotation of the sensor shaft.Type: ApplicationFiled: May 25, 2022Publication date: December 1, 2022Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Luca MALACCI, Wolfram RAITHER
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Publication number: 20220111885Abstract: 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°.Type: ApplicationFiled: August 20, 2019Publication date: April 14, 2022Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram RAITHER, Philippe STECK
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Publication number: 20220048561Abstract: 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.Type: ApplicationFiled: October 4, 2019Publication date: February 17, 2022Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram RAITHER, Philippe STECK
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Publication number: 20210171090Abstract: 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.Type: ApplicationFiled: August 9, 2019Publication date: June 10, 2021Applicants: thyssenkrupp Presta AG, thyssenkrupp AGInventors: Wolfram RAITHER, Philippe STECK
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Patent number: 10913484Abstract: An electromechanical power steering device may include a servomotor that drives an axially movable component via a ball nut mounted in a bearing such that the ball nut can be rotated about a longitudinal axis in a housing. The ball nut may be engaged with a threaded spindle configured on the axially movable component. The ball nut may include a ball screw on its inner side for balls to roll on, and an external ball return means that connects a start of the ball screw to an end of the ball screw to make endless circulation of the balls possible. A return channel of the ball return means may be formed by way of a deflecting body and a pulley wheel.Type: GrantFiled: June 22, 2017Date of Patent: February 9, 2021Assignees: THYSSENKRUPP PRESTA AG, THYSSENKRUPP AGInventors: András Illés, Wolfram Raither
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Patent number: 10641369Abstract: A power steering system for a motor vehicle may include a servomotor, which drives an axially-movable rack via a ball nut. The ball nut may be mounted in a bearing such that the ball nut can be rotated in a housing. The ball nut engages with a threaded spindle formed on the axially-movable rack and has a ball screw thread on an inside thereof for balls to roll on. An external ball return means may connect a beginning of the ball screw thread to an end of the ball screw thread to allow endless circulation of the balls. A deflector and a sleeve may form a return channel of the ball return means.Type: GrantFiled: October 18, 2016Date of Patent: May 5, 2020Assignees: THYSSENKRUPP PRESTA AG, THYSSENKRUPP AGInventors: András Illés, Wolfram Raither
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Publication number: 20190329815Abstract: An electromechanical power steering device may include a servomotor that drives an axially movable component via a ball nut mounted in a bearing such that the ball nut can be rotated about a longitudinal axis in a housing. The ball nut may be engaged with a threaded spindle configured on the axially movable component. The ball nut may include a ball screw on its inner side for balls to roll on, and an external ball return means that connects a start of the ball screw to an end of the ball screw to make endless circulation of the balls possible. A return channel of the ball return means may be formed by way of a deflecting body and a pulley wheel.Type: ApplicationFiled: June 22, 2017Publication date: October 31, 2019Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AGInventors: András ILLÉS, Wolfram RAITHER
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Publication number: 20190315391Abstract: An electromechanical servo-assisted power steering system may include a servo motor that drives an axially displaceable structural element by way of a ball nut that is rotatably supported in a bearing in a housing. The ball nut may be engaged with a threaded spindle constructed on the axially displaceable structural element. The bearing may be a dual-row angular ball bearing having at least one bearing inner ring and at least one bearing outer ring. The at least one bearing outer ring may be received in a sleeve that is arranged in a bearing seat of the housing.Type: ApplicationFiled: June 22, 2017Publication date: October 17, 2019Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AGInventors: András ILLÉS, Wolfram RAITHER
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Publication number: 20190263443Abstract: An electromechanical power steering device, which may be used in a motor vehicle, may include a servomotor that drives an axially movable component via a ball nut that is mounted in a bearing such that the ball nut can be rotated in a housing. The ball nut may be engaged with a threaded spindle that is configured on the axially movable component. The bearing may be a double-row angular contact ball bearing with a single-part bearing inner ring. In some cases contact angles of the double-row angular contact ball bearing may be configured such that a supporting spacing other than zero is formed.Type: ApplicationFiled: June 22, 2017Publication date: August 29, 2019Applicants: ThyssenKrupp Presta AG, thyssenkrupp AGInventors: András ILLÉS, Wolfram RAITHER
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Publication number: 20180306286Abstract: A power steering system for a motor vehicle may include a servomotor, which drives an axially-movable rack via a ball nut. The ball nut may be mounted in a bearing such that the ball nut can be rotated in a housing. The ball nut engages with a threaded spindle formed on the axially-movable rack and has a ball screw thread on an inside thereof for balls to roll on. An external ball return means may connect a beginning of the ball screw thread to an end of the ball screw thread to allow endless circulation of the balls. A deflector and a sleeve may form a return channel of the ball return means.Type: ApplicationFiled: October 18, 2016Publication date: October 25, 2018Applicants: THYSSENKRUPP PRESTA AG, Thyssenkrupp AGInventors: András ILLÉS, Wolfram RAITHER