Patents Assigned to Thyssenkrupp Presta Steertec GmbH
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Patent number: 7954396Abstract: A rack and pinion steering gear comprising a thrust element disposed in a housing for pressing a rack and pinion against one another. One side of the thrust element is supported against the rack, and another side is supported against a wedge-like part formed of two semi-circular annular elements, each of which is provided with at least one wedge surface that is disposed at an angle to a central plane of the wedge-like part. A side of the wedge-like part remote from the thrust element is supported against a set screw. The thrust element and/or the set screw is provided with an inclined surface that cooperates with the at least one wedge surface of the annular elements of the wedge-like part.Type: GrantFiled: January 25, 2007Date of Patent: June 7, 2011Assignee: ThyssenKrupp Presta Steertec GmbHInventors: Manfred Rombold, Michael Weigel
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Patent number: 7823687Abstract: The invention relates to an electric power steering for a motor vehicle that may include a gear rack (11) that is positioned axially displaceable inside a steering housing (I) and is driven by an electric servomotor (16), arranged inside a motor housing (7), with the aid of a belt (14) that runs inside a surrounding housing part (6) and a gear (12) for assisting the steering, wherein the belt (14) is configured ferromagnetically and at least one magnet (20) is arranged inside the housing part (6), beside the belt (14) and at a distance to the belt (14).Type: GrantFiled: January 7, 2008Date of Patent: November 2, 2010Assignee: ThyssenKrupp Presta SteerTec GmbHInventors: Matthias Spengler, Jens Keppler, Jens Stolzenburg
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Patent number: 7823688Abstract: The invention relates to an electric power steering for a motor vehicle, that may include a gear rack (11) that is positioned axially displaceable inside a steering housing (1) and can be driven by an electric servomotor (16), arranged inside a motor housing (7), with the aid of a belt (14) and a gear (12) for assisting with the steering. A simple and reliable belt tensioning is possible by providing an insertion wedge (21) between the motor housing (7) and the steering housing (1), which pushes the motor housing (7) away from the steering housing (1) for the purpose of tensioning of the belt (14).Type: GrantFiled: January 7, 2008Date of Patent: November 2, 2010Assignee: ThyssenKrupp Presta SteerTec GmbHInventors: Matthias Spengler, Jens Keppler, Jens Stolzenburg
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Publication number: 20100059308Abstract: The invention relates to an electric power steering for a motor vehicle, comprising a gear rack (11) that is positioned axially displaceable inside a steering housing (1) and is driven by an electric servomotor (16), arranged inside a motor housing (7), with the aid of a belt (14) that runs inside a surrounding housing part (6) and a gear (12) for assisting the steering, wherein the belt (14) is configured ferromagnetically and at least one magnet (20) is arranged inside the housing part (6), beside the belt (14) and at a distance to the belt (14).Type: ApplicationFiled: January 7, 2008Publication date: March 11, 2010Applicant: ThyssenKrupp Presta SteerTec GmbHInventors: Matthias Spengler, Jens Keppler, Jens Stolzenburg
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Publication number: 20100044145Abstract: The invention relates to an electric power steering for a motor vehicle, comprising a gear rack (11) that is positioned axially displaceable inside a steering housing (1) and can be driven by an electric servomotor (16), arranged inside a motor housing (7), with the aid of a belt (14) and a gear (12) for assisting with the steering. A simple and reliable belt tensioning is possible by providing an insertion wedge (21) between the motor housing (7) and the steering housing (1), which pushes the motor housing (7) away from the steering housing (1) for the tensioning of the belt (14).Type: ApplicationFiled: January 7, 2008Publication date: February 25, 2010Applicant: ThyssenKrupp Presta SteerTec GmbHInventors: Matthias Spengler, Jens Keppler, Jens Stolzenburg
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Patent number: 7331419Abstract: The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, 24) that passes through the respective cradle (4, 23). The respective cradle (4, 23) and the corresponding guide rod(s) (5, 24) form working chambers (A11, A12, A21, A22) of a piston-cylinder system, whereby each respective guide rod (5, 24) has at least one channel (KA11, KA12, KA21, KA22), each terminating in the vicinity of a working chamber (A11, A12, A21, A22). The cradle or cradles (4, 23) adjust the steerable wheels (1, 20) directly or by means of steering tie rods (2, 21).Type: GrantFiled: December 4, 2002Date of Patent: February 19, 2008Assignee: ThyssenKrupp Presta Steertec GmbHInventors: Karsten Sikora, Jochen Horwath
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Patent number: 7311033Abstract: A retroactive device as part of a hydraulic servo-steering system that also includes a hydraulic servo-valve device, the retroactive device comprising an arrangement for hydraulically producing a restoring moment into a central position that produces the restoring moment as a function of the pressure differential between a pressure side and a low-pressure side. The system has at least one valve arrangement that, when pressure is applied in the central position of the servo-valve, is adapted to produce a pressure differential between the external and internal chambers of the valve. The valve arrangement is disposed hydraulically in series with the retroactive device.Type: GrantFiled: June 29, 2004Date of Patent: December 25, 2007Assignee: ThyssenKrupp Presta SteerTec GmbHInventors: Edwin Breuning, Carmine Cioppi, Jens Stolzenburg
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Patent number: 7181325Abstract: A vehicle steering system having a steering handle for steering at least one wheel is provided, and includes an arrangement for applying torque to the steering handle and a sensor for detecting applied steering torque. The arrangement generates a return torque, as a function of the steering angle, for driving the steering handle into a central position. During a first driving state in which applied steering torque is above a threshold value, the function curve of the return torque increases monotonically and no return torque is generated at a steering angle of zero. During a second driving state in which applied steering torque is below the threshold value, the arrangement generates a return torque that is greater than that given by the function curve in the first driving state, at least at small steering angles.Type: GrantFiled: December 4, 2002Date of Patent: February 20, 2007Assignee: ThyssenKrupp Presta SteerTec GmbHInventors: Harwin Niessen, Roman Frank Starbeck
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Patent number: 7162341Abstract: A motor-driven power steering unit comprising an electric motor for producing an auxiliary steering force in a steering system coupling a steering wheel to two wheels of a vehicle. The steering system provides assistance, based on steering information, to a rotation of the steering wheel by control of an electric current fed to the electric motor. A steering angle detection device is provided, wherein the steering system regulates the assistance as a function of a steering angle detected by the detection device. The assistance, or current, is reduced after a pre-set or pre-definable angle is reached or exceeded prior to reaching a respective end position. The reduction of the assistance or current is cancelled as soon as signs of steering force and the steering angel no longer coincide.Type: GrantFiled: April 8, 2002Date of Patent: January 9, 2007Assignee: ThyssenKrupp Presta SteerTec GmbHInventors: Klaus von Hammel, Harwin Niessen
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Patent number: 7036626Abstract: A vehicle steering system for controlling a steering or steering lock angle of at least one wheel of a vehicle having a steering handle or wheel, whereby the actual manual torque or force that is to be applied by the driver for controlling the vehicle being regulated by a control device is a function of the vehicle condition or state values.Type: GrantFiled: February 21, 2002Date of Patent: May 2, 2006Assignee: Thyssenkrupp Presta Steertec GmbHInventors: Harwin Niessen, Hremann Henrichfreise
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Publication number: 20060053915Abstract: A steering system for a motor vehicle, comprising a shaft that is rotatably mounted on the chassis of the vehicle, a carriage that is connected to the shaft via a threaded mechanism so as to be displaceable along the shaft, two tie rods secured to the carriage and extending to wheels of an axle of the vehicle, and a bar that is secured to the chassis of the vehicle and extends parallel to the shaft, wherein the bar extends through the carriage, which is displaceable along the bar.Type: ApplicationFiled: October 13, 2003Publication date: March 16, 2006Applicant: ThyssenKrupp Presta SteerTec GmbHInventor: Jochen Horwath