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公开(公告)号：US20190144026A1
公开(公告)日：2019-05-16
申请号：US16315912
申请日：2017-07-04
发明人： Hubert HECK , Reinhard BADER , Ralf ECKSTEIN
摘要： A rack may include a toothed portion having a toothing, and a shaft portion having a threaded portion with a coaxial thread that has a thread length in an axial direction of a longitudinal axis. Separate segments comprising at least one in each case bar-shaped toothed segment and one shaft segment are provided, are aligned on the longitudinal axis, and are connected to one another at a joint. A method for producing the rack may involve providing a shaft raw material piece having a piece length that is a multiple of a shaft segment length, generating a thread that is continuous in a longitudinal direction on the shaft raw material piece across a multiple of the thread length to produce a threaded semi-finished product, cutting to length a threaded segment from the threaded semi-finished product, providing a toothed segment, and joining the threaded segment to the toothed segment.
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公开(公告)号：US10252742B2
公开(公告)日：2019-04-09
申请号：US15328173
申请日：2015-06-24
发明人： Ulrich Schlegel , Manuel Büchel , Patrick Renggli
IPC分类号： F16H57/021 , B62D5/04 , F16H1/16 , F16H55/24
摘要： An electromechanical power steering system for a motor vehicle may include a driving worm that is driven by an electric motor and acts on a worm gear that is coupled to a steering shaft. The driving worm may be mounted in such a way that it can rotate about its worm axis. More particularly, the driving worm may be mounted in a bearing that is held in a mount. The mount may prestress the driving worm in a direction of the worm gear. In some examples, the mount is torsionally weak about a torsion axis that is positioned perpendicularly with respect to the worm axis.
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公开(公告)号：US20190077451A1
公开(公告)日：2019-03-14
申请号：US16073277
申请日：2016-02-05
发明人： Zoltán THIMÁR
IPC分类号： B62D5/04 , G06F11/07 , G05B19/042
摘要： An electric power steering apparatus for assisting steering of a motor vehicle by conferring torque generated by an electric motor to a steering mechanism, includes a steering controller, which receives signals representative of at least the torque (TTS) applied to a steering wheel and determining a target motor torque (Td), with a microcontroller unit (MCU) and an electronic control unit (WD). A motor controller includes an inverter which transforms from target motor torque (Td) generated target voltages (U1) into motor currents (I1). The WD comprises a memory in which state variables of the MCU are stored and a timer which monitors a blackout time of the MCU, wherein the MCU and WD are linked via a communication bus and a reset line.
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74.发明申请公开(公告)号：US20190047619A1
公开(公告)日：2019-02-14
申请号：US16080246
申请日：2016-03-04
CPC分类号： B62D6/10 , B62D5/0463 , B62D15/0215 , G01D5/24476 , G01L3/104 , G01L5/221
摘要： A power steering apparatus assists steering of a vehicle by conferring torque generated by an electric motor to a steering mechanism. The apparatus includes a steering column with linked upper and lower steering shafts. An angle sensor (AS) includes a gear and magnet to measure the steering shaft angle. A torque sensor (TS) measures the relative shift angle between the upper and lower steering shaft and includes a multi-pole ring magnet and a magnetic flux conductor. The TS and AS are arranged such that the AS magnet influences the TS measurement creating a steering shaft angle depending error signal. The steering mechanism is arranged such that a zero crossing of an envelope curve of the error signal is given for the neutral position of the steering apparatus or a range of the steering position in which the steering angle is less than a threshold angle limit.
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公开(公告)号：US20190031224A1
公开(公告)日：2019-01-31
申请号：US16077642
申请日：2017-02-07
发明人： Sebastian HUBER
摘要： A motor-adjustable steering column including a supporting unit which is connectable to a vehicle body and by which an actuating unit is held which includes a steering spindle mounted in a casing unit to be rotatable about a longitudinal axis. The casing unit has an outer casing tube, in which an inner casing tube is accommodated to be axially displaceable telescopically in the direction of the longitudinal axis. An actuating drive is connected to the inner casing tube and the outer casing tube by which the inner casing tube may be displaced axially in and out relative to the outer casing tube. A feature arranged between the outer casing tube and the inner casing tube generates a frictional force between outer casing tube and inner casing tube with regard to relative displacement which is adjustable between a release position and at least one friction position.
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公开(公告)号：US20180323738A1
公开(公告)日：2018-11-08
申请号：US15771672
申请日：2012-12-02
发明人： Roland GÉMESI
CPC分类号： H02P21/06 , B62D5/046 , G01R33/0041 , G01R33/0082 , H02P6/08 , H02P21/50
摘要： A method may be used to error compensate a measurement of an electric motor's rotor position in a power steering system of a motor vehicle. The electric motor generates torque for assisting steering of the motor vehicle, and stray magnetic fields of motor currents affect the measurement of the rotor position with a magneto-resistive rotor position sensor. The method may involve calculating at least two compensation values based on a current vector, rotor position, and hardware dependent parameters. The at least two compensation values account for errors in the rotor position measurement due to stray magnetic fields of motor currents. The method may also involve calculating a compensated rotor position signal by subtracting the at least two compensation values of the measured rotor position, as well as transferring the compensated rotor position signal as part of a feed-back loop to a target motor torque determination in the motor control.
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公开(公告)号：US20180319419A1
公开(公告)日：2018-11-08
申请号：US15775252
申请日：2016-12-01
发明人： Daniel KREUTZ , Sebastian FORTE
IPC分类号： B62D1/181
摘要： An adjustable steering column for a steer-by-wire steering device may include an actuating unit that comprises a steering spindle mounted rotatably about a longitudinal axis in a casing unit. The casing unit may have a first casing tube in which a second casing tube is arranged in a rotationally fixed manner with respect to the longitudinal axis and is mounted so as to be movable axially in a telescopic fashion. An actuating drive is connected to the first casing tube and the second casing tube and can move the second casing tube relative to the first casing tube. The actuating drive may comprise a spindle drive with a threaded spindle that is parallel to the longitudinal axis, rotatably drivable by a servomotor, supported on and extending within the first casing tube, and screwed into a spindle nut attached in a rotationally fixed manner to the second casing tube.
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公开(公告)号：US20180290680A1
公开(公告)日：2018-10-11
申请号：US15754214
申请日：2016-08-09
发明人： Sebastian HUBER
摘要： A clamping device may include clamping jaws that selectively clamp a steering column tube that is adjustable. A clamping pin may connect the clamping jaws. Rotation of the clamping pin in a closure direction causes the steering column tube to be clamped between the clamping jaws, and rotation of the clamping pin in an opening direction releases the clamping jaws for adjustment of the steering column tube. A damping member may be disposed on the clamping pin and connected to the clamping pin in a frictionally engaging or resilient manner. The damping member may comprise a stop tongue that protrudes radially from the clamping pin. When the clamping pin rotates in the opening direction, the stop tongue moves into abutment with the steering column tube and prevents rotation of the damping member so that the rotation of the clamping pin in the opening direction occurs counter to the friction force or resilient force and is damped.”
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公开(公告)号：US20180273082A1
公开(公告)日：2018-09-27
申请号：US15542105
申请日：2015-09-22
摘要： A method may be used to produce a steering column for a motor vehicle that includes an inner steering column tube that receives a steering shaft such that the steering shaft is rotatable about its longitudinal axis, an outer steering column tube that receives the inner steering column tube and has a longitudinal slot that extends in a direction of the longitudinal axis, and a clamping apparatus that can be switched over between a release position in which the inner steering column tube is adjustable relative to the outer steering column tube and a fixing position in which the inner steering column tube is fixed relative to the outer steering column tube. The longitudinal slot may have a greater width in the release position than in the fixing position. The method may involve, amongst other steps, manufacturing at least one single blank of the outer steering column tube and/or of the inner steering column tube using an extrusion process.
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公开(公告)号：US20180251147A1
公开(公告)日：2018-09-06
申请号：US15754055
申请日：2016-08-02
摘要： A motor-adjustable steering column may include a support unit that is connectable to a vehicle body and holds an adjustment unit. The adjustment unit may include a steering spindle mounted in a casing unit rotatably about a longitudinal axis. The casing unit may include an outer casing tube that receives an inner casing tube in an axially displaceable, telescopic fashion. An adjustment drive may be connected to the inner and outer casing tubes. The inner casing tube can be retracted and deployed axially relative to the outer casing tube. An intermediate casing tube may be disposed coaxially between the inner and outer casing tubes so as to be axially displaceable in telescopic fashion relative to the inner and outer casing tubes. The intermediate casing tube can be axially retracted and deployed relative to the inner and outer casing tubes by the adjustment drive.
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