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61.发明授权公开(公告)号：US10913484B2
公开(公告)日：2021-02-09
申请号：US16309398
申请日：2017-06-22
发明人： András Illés , Wolfram Raither
摘要： 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.
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公开(公告)号：US20210010597A1
公开(公告)日：2021-01-14
申请号：US16979231
申请日：2019-03-29
IPC分类号： F16J15/10
摘要： A method for assembling an annular seal element, formed by a sealing cord which runs around an opening on a seal receptacle which runs around on the outside of a component. The method includes introducing two assembly fingers into the opening of the annular seal element, stretching the annular seal element by moving the assembly fingers apart from one another, with the formation of a cord portion of the sealing cord, the cord portion being freely tensioned between the assembly fingers, placing the freely tensioned cord portion onto the seal receptacle in a contact region, applying the annular seal element, by way of its opening, onto the seal receptacle, and removing the assembly fingers from the annular seal element. The assembly fingers are moved so as to follow the profile of the seal receptacle, to travel around the seal receptacle in opposite directions.
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公开(公告)号：US20200377140A1
公开(公告)日：2020-12-03
申请号：US16970439
申请日：2019-02-19
发明人： Robert GALEHR , Thomas RAICH
摘要： A steering column for a motor vehicle has an actuating unit that encloses a steering shaft that is rotatable about a rotation axis and which by way of the rear end region thereof that faces the rear of the vehicle is disposed so as to, by means of a first motorized drive, be vertically pivotable by way of an articulated pivot lever on a holding unit which is fastened to the vehicle chassis. The cost-effective attachment of the front end region of the steering column is improved in that the actuating unit in the front end region that faces the front of the vehicle is provided with an elastic bracket element which is fixedly connectable to the vehicle chassis and on account of an elastic deformation permits vertical pivoting as well as axial displacement of the actuating unit.
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公开(公告)号：US10822022B2
公开(公告)日：2020-11-03
申请号：US16094347
申请日：2017-04-12
发明人： Kristof Polmans , Philippe Steck
摘要： 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.
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65.发明授权公开(公告)号：US10793180B2
公开(公告)日：2020-10-06
申请号：US16324269
申请日：2017-08-09
IPC分类号： B62D1/185 , F16C3/03 , F16C33/20 , B62D1/20 , F16D3/06 , B29C45/00 , B29C45/14 , B29C59/04 , F16C29/02 , F16D3/40 , B29K101/12 , B29L31/30
摘要： A method for producing a length-adjustable steering shaft having a hollow shaft in which a toothed shaft is received so as to be axially telescopic. The toothed shaft has a toothing with teeth on an external circumference that extend in the axial direction and which engages in a form-fitting manner in an inner toothing of the hollow shaft. A sliding layer of thermoplastic plastics material is at least in portions attached between the inner toothing and the toothing. In order to enable an improved fastening of the sliding layer to the toothing, prior to attaching the sliding layer, form-fitting elements which for forming a form-fitting connection that is effective in the axial direction are brought to engage with the sliding layer are configured in the region of the toothing of the toothed shaft or the inner toothing of the hollow shaft.
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公开(公告)号：US10773746B2
公开(公告)日：2020-09-15
申请号：US16146359
申请日：2018-09-28
发明人： Helmut Kirmsze , Sascha Fricke , Thomas Raich
摘要： An adjustable steering column assembly includes a lower jacket, a rake bracket, a rake guide, and a fastener coupling each. The lower jacket has an attachment portion with an end, and a passage extends from that end at least partially through the attachment portion. The attachment portion end has upper and lower seating faces extending into the passage. The rake bracket has a base portion and an arm with an aperture. The rake guide has upper and lower ends and a hole. The upper and lower ends respective have configurations complementary to configurations of the upper and lower seating faces, and the rake guide is positioned in the end of the lower jacket attachment portion such that the rake guide upper end mates with the upper seating face and such that the rake guide lower end mates with the lower seating face.
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公开(公告)号：US20200269912A1
公开(公告)日：2020-08-27
申请号：US16629622
申请日：2018-07-09
发明人： Leonard LAPIS , Manuel ü ROHRMOSER
摘要： A method and system for rack-and-pinion position adjustment for a steer-by-wire steering system for a motor vehicle. A module provides adjustment of the rack-and-pinion position, by determining a position error from a difference between desired and estimated value(s) of the rack-and-pinion position and the rack-and-pinion speed in a feedback structure, from which a control variable is determined for controlling the rack-and-pinion and a disturbance variable compensation for the control variable is carried out in a feedforward structure by means of a rack force estimation.
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68.发明授权公开(公告)号：US10756619B2
公开(公告)日：2020-08-25
申请号：US16327890
申请日：2016-08-26
发明人： Gabor Ordasi
IPC分类号： H02M1/38 , H02P27/08 , B62D5/04 , H02M7/5387 , H02M1/00
摘要： A method for dead time optimization of MOSFETs in an inverter of an motor controller of an electric motor in an electromechanical motor vehicle power steering mechanism or a steer-by-wire system. The inverter includes at least two MOSFETs comprising a high side MOSFET and a low side MOSFET, and wherein the motor controller controls the at least two MOSFETS with gate driver signals with a dead time. The dead time represents a time of the MOSFETs for switching over from one MOSFET to another MOSFET connected in series. The method includes the steps of measuring a cross conduction between the high side MOSFET and the low side MOSFET in a current measurement unit, and when a cross conduction occurs the dead time is increased, otherwise the dead time is decreased.
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公开(公告)号：US20200230890A1
公开(公告)日：2020-07-23
申请号：US16650163
申请日：2018-10-05
发明人： Peter HIRSCHAUER
摘要： A method for producing an axially movable connection between two tubular components with a plastic as a sliding material therebetween may involve providing the components to be joined where either at least one of the two components has a plastic coating or a plastic sleeve is provided between the components, joining the components to form a unit via a pressing force in an axial direction, clamping the unit in a device in which the components can be clamped and subjected to a displacement force in the axial direction, pressing a sonotrode against an outer of the two components, injecting an ultrasound signal into the sonotrode at a frequency close to the resonance frequency of one of the components, and moving the tubular components back and forth in the axial direction until the displacement force or the displacement velocity reaches a target, and ending the ultrasound signal.
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70.发明申请公开(公告)号：US20200207407A1
公开(公告)日：2020-07-02
申请号：US16633948
申请日：2018-08-01
发明人： Andreas BACHMANN
摘要： A worm gear for an electromechanical power steering system of a motor vehicle, includes a worm shaft that meshes with a worm wheel. The worm wheel and the worm shaft are arranged together in a gear housing. An eccentric lever and a bimetallic spring that is operatively connected to the eccentric lever are configured to compensate for a temperature-related play in the engagement between the worm wheel and the worm shaft.
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