Patents Assigned to Robert Bosch Automotive Steering GmbH
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Patent number: 11548549Abstract: A steering system for a trailing axle of a motor vehicle includes an electric motor, a hydraulic pump, a first valve, and a working cylinder. The electric motor is configured to drive the hydraulic pump. The working cylinder has a central bore and a piston positioned in the working cylinder. The first valve is fluidically connected to the pump such that the first valve is configured to block flow between the central bore and the pump in response to pressure generated by the pump, and to release the flow in response to a non-pressurized state of the pump in order to divert hydraulic fluid from the working cylinder through the central bore via an adhesion-driven movement of the piston into a central position in the central bore. A method includes operating a steering system for a trailing axle of a motor vehicle of this type.Type: GrantFiled: October 4, 2016Date of Patent: January 10, 2023Assignee: Robert Bosch Automotive Steering GmbHInventors: Falk Hofmann, Michael Haegele, Kai Eckmann
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Patent number: 11325639Abstract: A steering gear includes a gear wheel, a screw pinion meshing therewith, and a screw pinion shaft that includes the screw pinion. The screw pinion shaft is mounted on one side of the screw pinion in a fixed bearing. The steering gear includes a rotary bearing which comprises an inner bearing shell and an outer bearing shell. The outer bearing shell is connected to an inner ring of a swivel ring. The inner ring is connected to an outer ring of the swivel ring by a torsion web so as to pivot about a pivot axis. The torsion web runs at a distance from a supporting surface. The distance is dimensioned such that the torsion web does not contact the supporting surface when the screw pinion shaft is not loaded with a torque, and partially contacts the same when the screw pinion shaft is loaded with an operating torque.Type: GrantFiled: January 25, 2017Date of Patent: May 10, 2022Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Ekkehard Kneer
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Publication number: 20210197891Abstract: A steering system for a trailing axle of a motor vehicle includes an electric motor, a hydraulic pump, a first valve, and a working cylinder. The electric motor is configured to drive the hydraulic pump. The working cylinder has a central bore and a piston positioned in the working cylinder. The first valve is fluidically connected to the pump such that the first valve is configured to block flow between the central bore and the pump in response to pressure generated by the pump, and to release the flow in response to a non-pressurized state of the pump in order to divert hydraulic fluid from the working cylinder through the central bore via an adhesion-driven movement of the piston into a central position in the central bore. A method includes operating a steering system for a trailing axle of a motor vehicle of this type.Type: ApplicationFiled: October 4, 2016Publication date: July 1, 2021Applicant: Robert Bosch Automotive Steering GmbHInventors: Falk HOFMANN, Michael HAEGELE, Kai ECKMANN
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Patent number: 10960920Abstract: A device for operating a steering system having at least one electrically operable actuator includes at least one carrier substrate on which a first electronics system and a second electronics system, which is at least partially redundant thereto, is arranged for operating the actuator. The at least one carrier substrate is sealed in a fluid-tight manner, at least in regions, by a protective coating. The first electronics system is sealed at least substantially by the protective coating, and the second electronics system is at least partially free of the protective coating.Type: GrantFiled: August 18, 2016Date of Patent: March 30, 2021Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Florian Beer
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Patent number: 10919568Abstract: A method for operating a steering system of a motor vehicle with a power steering system including a number of actuator paths for applying a total assist torque to a steering gearbox includes determining the total assist torque in each of the actuator paths. The method further includes determining partial assist torques for all actuator paths in each of the actuator paths. The method further includes receiving the associated partial assist torque by each of the actuator paths from the actuator path that is activated as a master.Type: GrantFiled: September 12, 2016Date of Patent: February 16, 2021Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Philipp Schreiner
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Patent number: 10864938Abstract: A method for monitoring the condition of an electronic power steering apparatus or of at least one part of the electronic power steering apparatus of a motor vehicle includes continually capturing acceleration measured values in a region of the electronic power steering apparatus during a driving mode of the motor vehicle and continually providing the captured acceleration measured values to a damage computation section in the form of a damage meter that continuously sums the acceleration measured values and continually forms therefrom at least one variable characterizing a degree of damage to the electronic power steering apparatus or to the at least one part of the electronic power steering apparatus. The method further includes continually comparing the variable with at least one prescribed limit value.Type: GrantFiled: December 2, 2016Date of Patent: December 15, 2020Assignees: Robert Bosch GmbH, Robert Bosch Automotive Steering GmbHInventors: Rainer Schaenzel, Gerd Speidel, Thomas Alber, Michael Sturm
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Patent number: 10868459Abstract: An electromechanical actuator for rack-and-pinion steering includes a stator, rotor, and electronic system. The electronic system includes at least one first electronic sub-system and a second electronic subsystem, each operatively connected to the stator and the rotor. The at least one first electronic sub-system is arranged at least on a first circuit carrier plane and a second circuit carrier plane, and includes a first power output stage, a first control unit, and a first rotor position sensor arrangement. The second electronic sub-system is arranged at least on the first circuit carrier plane and a third circuit carrier plane, and includes a second power output stage, a second control unit, and a second rotor position sensor arrangement. The first, second and third circuit carrier planes are arranged perpendicular to an axis of rotation of the rotor, and are spaced apart from each other along the axis of rotation.Type: GrantFiled: October 28, 2016Date of Patent: December 15, 2020Assignees: Robert Bosch GmbH, Robert Bosch Automotive Steering GmbHInventors: Gebhard Hudelmaier, Eugen Sworowski, Thomas Hessler, Hans-Peter Mueller, Sylvia Wiedemann
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Patent number: 10836428Abstract: A method for controlling articulation angle during reversing of a vehicle combination, comprising a tractor motor vehicle having at least one trailer, uses a first articulation angle controller, which determines an intended steering lock from at least one steerable wheel of the tractor vehicle and controls the same via a steering actuator of the tractor motor vehicle, in order to achieve a predefined intended articulation angle of the vehicle combination. The rate of change of the articulation angle is limited in such a way that the maximum available setting speed of the steering actuator is sufficient, such that the movement of the at least one trailer follows the intended articulation angle, in particular over a predefined range of speed of travel of the vehicle combination.Type: GrantFiled: September 13, 2016Date of Patent: November 17, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Nicolas Boos
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Patent number: 10773751Abstract: A method is described for operating a steering system (2) of a motor vehicle. A steering means (8) is connected to a steering gear (14) by means of an active steering system (4). During autonomous operation of the motor vehicle, a driver's intervention (40) in the steering means (8) is determined. The active steering system (4) is operated in such a way that a coupling (30) between an angle (26) of the steering means and an angle (28) input into the steering gear (14) is adjusted depending on the thus determined driver's intervention (40).Type: GrantFiled: April 2, 2015Date of Patent: September 15, 2020Assignee: Robert Bosch Automotive Steering GmbHInventors: Thomas Wanner, Eman Mehrjerdian
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Patent number: 10752280Abstract: An intermediate steering shaft for a motor vehicle includes an elastic element arranged and formed (i) at least partially in a first recess and second recess formed in a receiving section of a profile shaft, and (ii) at least partially in a recess formed in a first guide rail and a recess formed in a second guide rail, in order to apply a pretension to a respective guide arrangement.Type: GrantFiled: June 27, 2016Date of Patent: August 25, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Olivér Abonyi
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Patent number: 10717460Abstract: A steering gear for a vehicle includes a steering pinion and a master rack. A toothing of the master rack includes a constant helix angle and a toothing of the steering pinion includes a changing helix angle.Type: GrantFiled: July 21, 2016Date of Patent: July 21, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Andreas Eisenhuth
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Patent number: 10668946Abstract: The description relates to a method for controlling a servo drive of a steering system of a vehicle, comprising the step of: failure of the feedback comprising the step of: monitoring the control of the servo drive.Type: GrantFiled: July 21, 2016Date of Patent: June 2, 2020Assignee: Robert Bosch Automotive Steering GmbHInventors: Thomas Burkhardt, Malte Elzmann
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Patent number: 10661820Abstract: A steering system for a motor vehicle includes a steering column and a device for adjusting the steering column. The device includes a bearing block, a first guide mechanism, and a second guide mechanism. A housing of the steering column is adjustably mounted in the bearing block. The first guide mechanism is configured to adjust a height of the steering column in the bearing block. The second guide mechanism is configured to adjust an inclination of the housing, and includes at least one first guide plate and at least one second guide plate that are each movably connected to the housing of the steering column and to the bearing block so as to be axially movable with an adjustment of the inclination of the housing.Type: GrantFiled: July 1, 2016Date of Patent: May 26, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Denes Gacsal, Gabor Andor Fuchs, Miklos Szabo
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Patent number: 10636407Abstract: A method for masking and/or reducing disturbing noises or the conspicuousness thereof when a motor vehicle is being operated includes forming a compensation signal and/or a heterodyne signal based on disturbing noises that are detected in acceleration measurement signals that are received or based on operating states of the motor vehicle or at least of a component of the motor vehicle and using the compensation signal and/or heterodyne signal to modulate an existing control signal of an actuator of the motor vehicle such that the disturbing noises or conspicuousness thereof are reduced and/or at least in part masked. The method further includes influencing the heterodyne signal with a broadband signal or a tonal signal having the predetermined frequencies or arrangements such that the disturbing noises is masked or the conspicuousness of the disturbing noises are reduced.Type: GrantFiled: December 1, 2016Date of Patent: April 28, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Gerd Speidel, Michael Sturm, Thomas Alber
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Patent number: 10625774Abstract: A steering system for a motor vehicle comprises an electric servomotor, as well as a water ingress detection device, at least one phase line of said servomotor being connected to a detection line for detecting the water level in a water-collecting area.Type: GrantFiled: November 24, 2015Date of Patent: April 21, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Eugen Sworowski, Alexander Gaedke
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Patent number: 10538264Abstract: An intermediate steering shaft for a motor vehicle includes an outer hollow shaft, an inner hollow shaft that is arranged at least partially in the outer hollow shaft, and a profile shaft that is arranged in the outer hollow shaft and connects the outer hollow shaft and the inner hollow shaft to one another. The intermediate steering shaft also includes a plurality of guide arrangements that guide the profile shaft in the outer hollow shaft for displacing the profile shaft and the inner hollow shaft. An elastic element is arranged between a respective guide rail and a receiving section of the profile shaft. The elastic element is configured to provide play compensation for the respective guide arrangement and to transmit a torque that acts from the outer hollow shaft on the guide arrangement to the profile shaft.Type: GrantFiled: January 21, 2016Date of Patent: January 21, 2020Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Oliver Abonyi
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Patent number: 10471983Abstract: The disclosure relates to a method and to devices for operating a power steering system. wherein a motor torque applied by an electric motor is superposed on a specified manual torque, wherein a beginning freezing of the power steering system is detected by means of suitable measures, and wherein the electric motor is controlled with an oscillating control signal to avoid the freezing of the power steering system, whereby an oscillating application of a shaking torque to the power steering system, applied by the electric motor, is effected. A control signal that has first time spans in which the control signal has an increased amplitude and second time spans in which the control signal has no amplitude or a reduced amplitude is generated, whereby the shaking torque is produced with an increased maximum torque in the first time spans, without thermal overloading of the electric motor.Type: GrantFiled: June 17, 2016Date of Patent: November 12, 2019Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Wilfried Leutner, Viktor Fast, Rainer Woeger
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Patent number: 10435073Abstract: The disclosure relates to a method for operating a steering system of a motor vehicle having a power steering system. A support torque is introduced into a steering transmission. A driving situation is determined. The support torque is reduced depending on the driving situation.Type: GrantFiled: February 2, 2016Date of Patent: October 8, 2019Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventor: Florian Beer
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Patent number: 10370027Abstract: This invention is a steering system for a trailing or leading axle of a vehicle including a steering angle sensor, a driving speed sensor, an electric motor that drives a hydraulic pump, a working cylinder for steering wheels of the axle, which is joined to the hydraulic pump, a control device which determines a trailing angle of the wheels and which controls the electric motor, wherein the working cylinder has a center position borehole via which hydraulic fluid is emitted, and a piston seals the center position borehole in the straight position of the wheels, wherein the working cylinder is connected to return valves, via which hydraulic fluid can flow back into a tank, wherein the center position borehole is connected to a center position valve, via which hydraulic fluid can flow back into a tank, and wherein the return valves and the center position valve are poppet valves.Type: GrantFiled: August 26, 2015Date of Patent: August 6, 2019Assignee: Robert Bosch Automotive Steering GmbHInventors: Kai Eckmann, Stefan Häussler, Falk Hofmann, Michael Hägele
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Patent number: 10363955Abstract: A control device is configured for use in a steering system in a vehicle with electromotive servo assistance. The control device includes control device elements and electronic components for actuating a servo motor arranged in each control device element. The control device has chambers configured to accommodate the electronic components of the control device elements. The chambers are sealed off from one another in a watertight manner at least up to a defined filling level. The electronic components of the control device elements are split over different chambers.Type: GrantFiled: January 12, 2016Date of Patent: July 30, 2019Assignees: Robert Bosch Automotive Steering GmbH, Robert Bosch GmbHInventors: Eugen Sworowski, Gebhard Hudelmaier