Rotary Patents (Class 324/207.25)
  • Patent number: 10921161
    Abstract: A differential angle sensor for measuring a differential angle between an input shaft and an output shaft includes a target assembly fixed to rotate with one of the shafts and a ring magnet with equidistantly spaced magnet segments fixed to rotate with the other one of the shafts. The target assembly includes four identical targets extending about the common axis parallel and axially spaced apart from one another, and each having a plurality of wedge-shaped teeth extending radially toward the ring magnet. A first magnetic field sensor is disposed between first and second targets for measuring a first magnetic field strength therebetween. A second magnetic field sensor is disposed between third and fourth targets for measuring a second magnetic field strength. The targets are all circumferentially offset relative to one another such that the magnetic field strengths each vary with the differential angle between the shafts and differently from one-another.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: February 16, 2021
    Assignee: CHINA AUTOMOTIVE SYSTEMS, INC.
    Inventors: Haimian Cai, Siqi Cheng, Changhe Huang, Thaddeus Schroeder, Christopher Mark Thrush
  • Patent number: 10913449
    Abstract: A vehicle control system includes a powertrain electronic control unit and an electronic stability control unit that is connected to the powertrain electronic control unit via a vehicle communication bus. The vehicle powertrain includes a wheel, a wheel speed sensor that is configured to detect a speed of the wheel, an electric motor that is configured to drive the wheel, and an electric motor speed sensor that is configured to detect the speed of the electric motor. If the wheel speed sensor is operating normally, the electronic stability control unit controls the vehicle based on an output of the wheel speed sensor. However, if the wheel speed sensor is not operating normally, the electronic stability control unit controls the vehicle based on an output of the electric motor speed sensor.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 9, 2021
    Assignee: Robert Bosch GmbH
    Inventor: David Safstrom
  • Patent number: 10895495
    Abstract: Rotational speed of a rotating component is determined using frequency domain vibrational data. A time sequence of vibrational data of the rotating component is sensed and converted to the frequency domain vibrational data. A portion of the frequency domain vibrational data corresponding to an expected rotational speed of the rotating component is identified. A frequency bin index of the frequency domain vibrational data corresponding to a maximum vibration within the portion of the frequency domain vibrational data is identified. The maximum vibration at the identified frequency bin index and vibrations associated with adjacent frequency bin indices are fitted to a model curve. A floating point frequency bin index corresponding to a maximum of the model curve is identified, and the rotational speed of the rotating component is determined based on the frequency bin index corresponding to the maximum of the model curve.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 19, 2021
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Alan M. Duke
  • Patent number: 10895067
    Abstract: An operator control device for a water conducting sanitary fitting including a basic holder with an operating toggle disposed thereon, which toggle has a rotating operating part and a fixed operating part which are rotatable in relation to each other, wherein the rotating operating part is rotatable about a rotation axis on the basic holder. The operating toggle can be pushed in towards the basic holder along the rotation axis. At least one pusher magnet is disposed in the basic holder, and at least one magnetic field sensor is disposed in the operating toggle. An evaluation device for the magnetic field sensor is provided, in order to detect whether the sensor approaches the pusher magnet during pushing-in. At least one magnetic element is disposed in the rotating operating part.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: January 19, 2021
    Assignee: Hansgrohe SE
    Inventors: Lars Baumstark, Aline Gebert
  • Patent number: 10859406
    Abstract: Aspects of the present disclosure relate to correcting for a phase shift between signals associated with an angle sensor and a multi-turn sensor that includes magnetoresistive elements. A processing circuit can determine a phase shift correction and generate position information based on at least the phase shift correction and a signal associated with the multi-turn sensor.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: December 8, 2020
    Assignee: Analog Devices Global
    Inventors: Aude Richard, Peter James Tonge, Jochen Schmitt, Monsoon Dutt
  • Patent number: 10852161
    Abstract: A magnetic field sensor that detects an angle of a target includes a first channel having first and second magnetic field sensing elements that are orthogonal with respect to each other and produce first and second magnetic field signals, and a second channel having third and fourth magnetic field sensing elements that are orthogonal with respect to each other and produce third and fourth magnetic field signals. The third sensing element is positioned at an angle (e.g., 45-degrees) with respect to the first sensing element. The magnetic field sensor includes a low power mode circuit that uses comparators to compare the first, second, third, and fourth magnetic field signals to a first, second, third, and fourth threshold, respectively. A processor is configured to use an output of the low power mode circuit to determine the angle of the target.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 1, 2020
    Assignee: Allegro MicroSystems, LLC
    Inventors: Juan Manuel Cesaretti, Nicolas Rigoni, Jesse Lapomardo
  • Patent number: 10837808
    Abstract: The invention relates to a device and a method for testing the plausibility of signals of a rotary encoder.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 17, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Benjamin Lechner, Daniel Zirkel, Daniel Raichle, Michael Ungermann
  • Patent number: 10837980
    Abstract: A rotation angle detection device for a vehicle brake includes: a housing accommodating a magnetic detection unit; a rotation member supported to be rotatable relative to the housing; and a magnet held by the rotation member and rotating integrally with the rotation member, in which the magnetic detection unit includes a stroke detection unit and a switch detection unit, the stroke detection unit detects a rotation angle by which the rotation member has rotated from a reference position based on a magnetic force of the magnet, the switch detection unit detects that the rotation member has rotated from the reference position by a predetermined angle or more, and at least a portion of the stroke detection unit is disposed at a position where the portion overlaps with the magnet in an axial direction of a rotational axis of the rotation member.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: November 17, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hidenobu Muramatsu, Takashi Hara
  • Patent number: 10819909
    Abstract: A driving apparatus which is capable of detecting a position with a long stroke and ensuring large driving thrust. The driving apparatus has a fixed member, a movable member, a coil, a position detector that detects a position of the movable member, and a first magnet unit and a second magnet unit that are placed with the coil interposed therebetween. The position detector and the coil are placed on one of the fixed member and the movable member, and the first magnet unit and the second magnet unit are placed on the other one. The second magnet unit has a concave portion in a central part of a surface facing the position detector. The position detector is placed closer to the second magnet unit than to the first magnet unit.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 27, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kaori Miyoshi
  • Patent number: 10816360
    Abstract: A rotation detection device includes a detected member that is mounted to a rotating member and has a plurality of magnetic poles arranged in a circumferential direction about a rotational axis of the rotating member, and a sensor section that is mounted to a stationary member not rotating with rotation of the rotating member and is arranged to face the detected member. The sensor section includes plural magnetic sensors each including a plate-shaped detection section that includes a magnetism detection element for detecting a magnetic field from the detected member, a signal processing circuit for processing a signal output from the magnetism detection element, and a cover collectively covering the magnetism detection element and the signal processing circuit, and wherein the detection sections are stacked in a direction along which the sensor section and the detected member face each other.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 27, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Takashi Onimoto, Teruyoshi Shirota
  • Patent number: 10802133
    Abstract: A system may include a magnetic sensor to measure a magnetic field that is influenced by a magnetic property of a target object, and determine first characteristic information, associated with the target object, based on the magnetic field. The system may include a radar sensor to measure a radar signal that is influenced by a radar property of the target object, and determine second characteristic information, associated with the target object, based on the radar signal. The system may include a controller to determine a characteristic of the target object based on the first characteristic information and the second characteristic information.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 13, 2020
    Assignee: Infineon Technologies AG
    Inventors: Dirk Hammerschmidt, Robert Hermann
  • Patent number: 10800452
    Abstract: 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.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 13, 2020
    Assignees: THYSSENKRUPP AG, THYSSENKRUPP PRESTA AG
    Inventors: Tivadar Kristóf Tóth, Gergely Mihály Pavlisinec
  • Patent number: 10782149
    Abstract: Disclosed is a sensor module, comprising: a protrusion part of a polygonal shape formed at one side; a sensing plate including a first insertion hole, formed in the protrusion part, to which a rotational shaft is coupled; and a sensing magnet including a second insertion hole, formed to correspond to the polygonal shape, in which the protrusion part is inserted and fixed.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 22, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Ja Young Seo
  • Patent number: 10753769
    Abstract: A magnetic field sensor has a plurality of magnetic field sensing elements and operates as a motion detector for sensing a rotation or other movement of a target object.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: August 25, 2020
    Assignee: Allegro MicroSystems, LLC
    Inventors: Paul A. David, William P. Taylor
  • Patent number: 10718633
    Abstract: A system is provided with a magnetic field sensor being positioned in a magnetic field of a magnet that is coupled to a rotatable driving shaft. The magnetic field sensor is configured to sense a rotation of the magnetic field in response to a rotation of the rotatable driving shaft, and generate an angle sensor signal based on an orientation angle of the magnetic field. The angle sensor signal includes angular values that represent an absolute orientation angle of the rotatable driving shaft. The system includes a memory storing a mapping of values of a patterned signal to the angular values, electronic circuitry configured to generate, based on the angular values and the stored mapping, the patterned signal, and a signal generator circuit configured to generate a signal representing the absolute orientation angle of the rotatable driving shaft based on the angle sensor signal.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 21, 2020
    Assignee: Infineon Technologies AG
    Inventors: Dietmar Spitzer, Peter Slama, Harald Witschnig, Leo Aichriedler, Friedrich Rasbornig
  • Patent number: 10712215
    Abstract: A detection device includes a conductive member, a facing member, and a sensor portion. The conductive member is provided to be conductive to a grounded member having a ground potential. The sensor portion includes a sensor element, a sensor main body, and a grounded terminal. The sensor element is disposed in a sensor placement region which is located between the conductive member and the facing member and in which a distance between the conductive member and the facing member is shortest. The conductive member is provided to be conductive to the grounded terminal or a grounded wiring portion connected to the grounded terminal in a conductive region different from the sensor placement region. Accordingly, static electricity and noise escape to the grounded member without passing through the sensor main body. Therefore, damage to and malfunction of the sensor are restricted.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: July 14, 2020
    Assignee: DENSO CORPORATION
    Inventor: Satoru Jinno
  • Patent number: 10690731
    Abstract: A magnetic field sensor including at least one magnetic field sensing element configured to generate a magnetic field signal indicative of a magnetic field associated with a target and a detector responsive to the magnetic field signal and to a threshold level to generate a sensor output signal containing transitions associated with features of the target in response to the magnetic field signal crossing the threshold level further includes a threshold generator to generate an adaptive threshold. The threshold generator is configured to generate the threshold level to achieve a predetermined fixed hard offset and that adapts with a variation in the airgap in order to minimize an error between times or angles of the transitions of the sensor output signal over the variation in the airgap.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 23, 2020
    Assignee: Allegro MicroSystems, LLC
    Inventors: Andrea Foletto, Florian Kulla
  • Patent number: 10690515
    Abstract: A dual Z-axis magnetoresistive angle sensor comprising a circular permanent magnet encoding disc, two Z-axis magnetoresistive sensor chips, and a PCB, two Z-axis magnetoresistive sensors are placed on the PCB. The magnetic sensing directions of the Z-axis magnetoresistive sensors are orthogonal to the substrate. Each Z-axis magnetoresistive sensor chip comprises a substrate and at least one magnetoresistive sensor located on the substrate. The magnetic field sensitive direction of the magnetoresistive sensor is perpendicular to the substrate. The magnetoresistive sensor comprises a flux concentrator and a magnetoresistive sensor unit. The magnetoresistive sensor unit is connected electrically into a push-pull structure. The push arm and pull arm of the magnetoresistive sensor are respectively located at two side positions equidistant from Y-axis central line and above or below the flux concentrator. The circular permanent magnet encoding disc has a magnetization direction parallel to the diameter direction.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 23, 2020
    Assignee: MultiDimension Technology Co. Ltd.
    Inventors: James Geza Deak, Zhimin Zhou
  • Patent number: 10693405
    Abstract: A rotor of a generator includes a plurality of permanent magnets and at least one magnetic band. The plurality of permanent magnets is arranged about an axis such that magnetic poles of the plurality of permanent magnets are radially oriented in regard to the rotor. The at least one magnetic band is disposed on a surface of the rotor such that magnetic poles of the magnetic band are between 1 degree and 90 degrees from being axially oriented in regard to the rotor.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 23, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Andrew R. Wilkinson, Dhaval Patel
  • Patent number: 10677859
    Abstract: Embodiments relate to magnetoresistive sensors suitable for both angle and field strength sensing. In an embodiment, a sensor comprises two different magnetoresistive (xMR) sensor components for sensing two different aspects or characteristics of a magnetic field. In an embodiment, the first xMR sensor component is configured for magnetic field angle or rotation sensing, while the second xMR sensor component is configured for magnetic field strength sensing. In an embodiment, the second xMR sensor component is configured for magnetic field strength sensing in two dimensions. The second xMR sensor therefore can determine, in embodiment, whether the field sensed with respect to angle or rotation by the first xMR sensor component is of sufficient strength or meets a minimum magnitude threshold. If the minimum threshold is not met, an alarm or alert can be provided.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 9, 2020
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Juergen Zimmer
  • Patent number: 10677613
    Abstract: Disclosed is a resolver, which includes a stator made of a magnetic material and having a plurality of teeth and a plurality of slots alternately formed at an inner side thereof; insulation covers respectively having a tooth insulating unit formed at an inner side thereof corresponding to the teeth and mounted to the stator at both upper and lower surfaces of the stator; and coils wound on the teeth with the tooth insulating unit being interposed therebetween, wherein a coil occupying ratio per slot, which is defined by the following equation and represents a ratio of area occupied by the coils in a slot to which the insulation covers are fixed, is 35% or below: Coil occupying ratio per slot=(area occupied by coils in a single slot)/(area of a single slot)??Equation.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 9, 2020
    Assignee: LS AUTOMOTIVE TECHNOLOGIES CO., LTD.
    Inventors: Won-Yong Lee, Byung-Cheol Na, Da-Hee Sim, Seong-Wook Lee, Yeon-Muk Choi
  • Patent number: 10670386
    Abstract: Some aspects described herein involve a multi-turn counter (MTC) system that includes a first MTC sensor configured to sense a rotating magnetic field coupled to a rotatable object. The first MTC sensor may have a first sense of rotation detection. The MTC system may include a second MTC sensor may be configured to sense the rotating magnetic field. The second MTC sensor may have a second sense of rotation detection which is opposite to the first sense of rotation detection, and the second MTC sensor is configured to sense the rotating magnetic field according to the second sense of rotation.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: June 2, 2020
    Assignee: Infineon Technologies AG
    Inventors: Jürgen Zimmer, Thomas Bever
  • Patent number: 10645810
    Abstract: A sensor for measuring the position of a component that is displaceable relative to the sensor, includes a circuit board and a metal body. The circuit board includes a first region in which a detector is located, and a second region in which electronic components are located, which are electrically connected to the detector. The metal body includes a first layer having a first area as well as a second layer having a second area. The first region of the circuit board is fixed in place in the first area and the second region of the circuit board is fixed in place in the second area. The first layer and the second layer of the metal body are situated between the first region and the second region of the circuit board so that the first region is located in a first plane and the second region is located in a second plane.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 5, 2020
    Assignee: DR. JOHANNES HEIDENHAIN GmbH
    Inventors: Lutz Rissing, Marc Oliver Tiemann, Alexander Frank
  • Patent number: 10627261
    Abstract: A movement detection unit includes a movable body, a first sensor, a second sensor, and a signal processor. The movable body performs a movement in a first direction. The first sensor detects a first magnetic field change which is caused by the movement of the movable body and outputs a first signal. The second sensor is provided in the first direction at a location different from a location of the first sensor. The second sensor detects a second magnetic field change which is caused by the movement of the movable body and outputting a second signal. The signal processor includes a signal generating circuit that generates a third signal and a fourth signal on a basis of the first signal. The third signal and the fourth signal have waveforms different from each other.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 21, 2020
    Assignee: TDK CORPORATION
    Inventor: Takakazu Imai
  • Patent number: 10603117
    Abstract: A surgical shaft assembly includes a proximal shaft portion, a distal shaft portion, and a control circuit. The proximal shaft portion includes a first sensor generating a first signal and a second sensor generating a second signal. The distal shaft portion includes a clutch assembly rotatable with the distal shaft portion about a longitudinal axis and relative to the proximal shaft portion. The clutch assembly is further rotatable relative to the distal shaft portion to transition the shaft assembly between two articulation states. The rotation of clutch assembly with the distal shaft portion changes the first signal, and the rotation of the clutch assembly relative to the distal shaft portion changes the second signal. The control circuit is configured to detect a change in the second signal occurring without a corresponding change in the first signal. The detected change indicates a transition between the two articulation states.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: March 31, 2020
    Assignee: Ethicon LLC
    Inventors: Brian D. Schings, Brett E. Swensgard, Raymond E. Parfett, Jason L. Harris, Frederick E. Shelton, IV
  • Patent number: 10598512
    Abstract: A batteryless rotary encoder is provided, which includes a rotation detecting section and a signal processing section. The rotation detecting section includes a rotational exciter magnet and a piezoelectric transducer. The piezoelectric transducer is constructed by laminating a magnetic material and a piezoelectric transduction sheet, and the magnetic material faces toward the rotational exciter magnet. When the rotational exciter magnet rotates, the rotational exciter magnet attracts or repels the magnet sheet or the magnetic metal sheet so that the piezoelectric transducer is pressed or stretched by the magnet sheet or the magnetic metal sheet to generate a first output signal. The signal processing section includes a counter and a rectifier. The counter receives the first output signal and calculates revolutions of the first output signal to indicate the number of rotations of the rotational exciter magnet. The rectifier receives the first output signal to power the counter.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 24, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kai-Cheung Juang, Yuan-Tai Chang
  • Patent number: 10598515
    Abstract: A magnetic field sensor includes a back bias magnet to generate a DC magnetic field. First and second magnetic field sensing elements of the magnetic field sensor are disposed proximate to at least one ferromagnetic surface of a ferromagnetic target object. The first and second magnetic field sensing elements generate first and second electronic signals, respectively, in response to first and second sensed magnetic fields corresponding to the DC magnetic field but influenced by the at least one ferromagnetic surface. The magnetic field sensor generates a difference signal that is a difference of amplitudes of the first and second electronic signals. The difference signal is indicative of a rotation measurement of an absolute relative rotation of the ferromagnetic target object and the magnetic field sensor about a rotation axis.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: March 24, 2020
    Assignee: Allegro MicroSystems, LLC
    Inventors: Simon Tima, Yannick Vuillermet, Andreas P. Friedrich, Thomas Kerdraon
  • Patent number: 10585166
    Abstract: The invention is a method for tracking a position of a magnet moving relative to a magnetometer array. On the basis of the magnetic field detected by each magnetometer of the array, the position of the magnet is estimated. This estimation is based on taking into account a reference magnetic field established beforehand, this reference magnetic field being subtracted from the magnetic field detected by each magnetometer, so as to form a differential measurement. The various successive estimations of the position of the magnet allow its path to be tracked.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: March 10, 2020
    Assignee: ISKN
    Inventor: Tristan Hautson
  • Patent number: 10578420
    Abstract: A rotation angle detection system comprises a magnet arranged to rotate around a rotation axis. A first magnetic detection circuit defines a first surface provided with a first and second pairs of magnetic detection elements. A signal processing unit is configured to output a signal representative of a rotation angle of the magnet based on outputs of the first and second pair of magnetic detection elements. A second magnetic detection circuit is provided with another first and second pairs of magnetic detection elements. The signal processing unit is configured to output a redundant signal corresponding to a rotation angle of the magnet based on outputs of the other first pair of magnetic detection elements and the other second pair of magnetic detection elements.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: March 3, 2020
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventor: Takumi Yoshiya
  • Patent number: 10577048
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of the pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a backward rotation amount of the pedal while the rotation direction of the pedal is backwards, the backward rotation amount being obtained by the pedal rotation sensor.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: March 3, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Patent number: 10578419
    Abstract: A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic field source coupled to the shaft; a first magnetic angle sensor configured to generate a first signal that represents a first angle based on a first diametric magnetic field from the magnetic field source applied to the first magnetic angle sensor; a second magnetic angle sensor configured to generate a second signal that represents a second angle based on a second diametric magnetic field from the magnetic field source applied to the second magnetic angle sensor; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 3, 2020
    Assignee: Infineon Technologies AG
    Inventors: Udo Ausserlechner, Wolfgang Granig
  • Patent number: 10571302
    Abstract: A rotary position sensor comprises a magnetic sensor for generating two independent signals indicative of at least two different order magnetic fields, and a magnetic assembly forming a first magnetic field component having a first order at the location of the magnetic sensor, in which the first magnetic field component is rotatable relative to the magnetic sensor by receiving a first angle. The magnetic assembly is also adapted for forming a second magnetic field component having a second order, different from the first order, at the location of the magnetic sensor, in which the second magnetic field component is rotatable relative to the magnetic sensor and the first magnetic assembly by receiving a second angle. The position sensor comprises a processor for combining the two independent signals to produce a unique system state representative of the first and second angle.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: February 25, 2020
    Assignee: Melexis Technologies SA
    Inventor: Peter Vandersteegen
  • Patent number: 10529477
    Abstract: A magnetizing device includes a magnetization yoke including a pair of magnetization heads confronting each other through a magnetic gap, an excitation coil wound around the magnetization yoke, and a magnetization power supply that supplies a magnetizing current to the excitation coil to generate magnetic flux between the magnetization heads. A magnetic shield is provided on the magnetization yoke. The magnetic shield is spaced apart from one of the magnetization heads with a gap being formed therebetween along a direction in which the plurality of magnetic encoder tracks are arranged. The magnetic shield blocks a flow of magnetic flux that is present outside a defined extension of a flow of the magnetic flux between the pair of magnetization heads. The magnetic shield is of such a geometry that a thickness thereof progressively decreases towards the one of the magnetization heads.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: January 7, 2020
    Assignee: NTN CORPORATION
    Inventors: Toru Takahashi, Shintarou Ueno
  • Patent number: 10514275
    Abstract: The embodiments relates to a stator used in resolvers, in which multiple slots are formed at constant intervals in the circumferential direction and have an excitation coil, a first output coil, and a second output coil are respectively wound around the multiple slots. The excitation coil is wound by a number of windings that is changed on the basis of a sinusoidal wave in accordance with the order of the multiple slots in the circumferential direction. After the first output coil is wound by a number of windings resulting from the division of the total number of windings by a constant ratio, the second output coil is wound, and then the rest of the first output coil is wound.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: December 24, 2019
    Assignee: LS AUTOMOTIVE TECHNOLOGIES CO., LTD
    Inventors: Byung Cheol Na, Won Young Lee
  • Patent number: 10502592
    Abstract: A device for the measurement of the angular position of a shaft, having: a support upon which a primary winding and at least two secondary windings in mutual phase opposition are configured, to form a first inductive positional sensor, and a second positional sensor having at least two secondary windings in mutual phase opposition and arranged on the same support, opposite the secondary windings of the first positional sensor with respect to a median line, such that a motif is formed in each case on either side of the median line, wherein the primary winding encloses all the secondary windings. A unit having a device of this type and a target having two helixes of opposing pitches.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: December 10, 2019
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventors: Alain Fontanet, Jean-louis Roux
  • Patent number: 10505428
    Abstract: An actuator including a reduction gear that reduces, by a certain reduction ratio, a rotational velocity of an input shaft joined to a rotary shaft of a motor, and transmits the reduced rotational velocity to an output shaft, a first absolute angle encoder that detects a rotational angle of the input shaft, and a second absolute angle encoder that detects a rotational angle of the output shaft.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: December 10, 2019
    Assignee: SONY CORPORATION
    Inventors: Wataru Kokubo, Takara Kasai, Yasuhisa Kamikawa, Yohei Kuroda, Toshimitsu Tsuboi, Tetsuharu Fukushima, Yasuhiro Matsuda, Atsushi Miyamoto
  • Patent number: 10488225
    Abstract: A magnetic angular position sensor system is described herein. According to one exemplary embodiment the angular position sensor system comprises a shaft rotatable around a rotation axis, wherein the shaft has a soft magnetic shaft end portion. The system further comprises a sensor chip spaced apart from the shaft end portion in an axial direction and defining a sensor plane, which is substantially perpendicular to the rotation axis. At least four magnetic field sensor elements are integrated in the sensor chip, wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a first direction and wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a second direction, whereby the first and the second direction are mutually non-parallel and the first and the second direction being perpendicular to the rotation axis.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 26, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10481608
    Abstract: A system includes an inspection robot for performing an inspection on an inspection surface with ultrasonic and magnetic induction sensors, the apparatus comprising a position definition circuit structured to determine an inspection robot position on the inspection surface; a data positioning circuit structured to interpret inspection data, and to correlate the inspection data to the inspection robot position on the inspection surface; and wherein the data positioning circuit is further structured to determine position informed inspection data in response to the correlating of the inspection data with the inspection robot position.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 19, 2019
    Assignee: Gecko Robotics, Inc.
    Inventors: Mark Loosararian, Joshua Moore, Yizhu Gu, Kevin Low, Edward Bryner, Logan MacKenzie, Ian Miller, Alvin Chou, Todd Joslin
  • Patent number: 10436613
    Abstract: To provide a linear motion and rotation detector in which a size thereof in a linear motion direction is able to be minimized. A linear motion and rotation detector (7) includes a cylindrical magnetic scale (8) that moves linearly in an axial direction (X) and rotates in a direction around an axis, a first magnetic detection element (41) configured to detect a linear motion position, and a second magnetic detection element (42) configured to detect a rotational position. The magnetic scale (8) includes a lattice-shaped magnetized pattern (37) in which S poles and N poles are alternately arranged in the axial direction (X) and S poles and N poles are alternately magnetized in the direction around the axis on a circumferential surface thereof. The first magnetic detection element (41) and the second magnetic detection element (42) are disposed to face the magnetized pattern (37).
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 8, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Katsuya Moriyama, Fusayoshi Aruga
  • Patent number: 10404143
    Abstract: The present invention relates to the field of motor detection, and in particular, to an apparatus for detecting an angular displacement, a system for controlling a rotation angle of a motor, a gimbal, and an aircraft. The apparatus for detecting the angular displacement provided the present invention includes a combined magnet, a Hall sensor, and a transmission component. The combined magnet includes a first magnet, a weak magnetic layer, and a second magnet that are sequentially stacked. Magnetic pole directions of the first magnet and the second magnet are opposite and parallel to the weak magnetic layer. The transmission component is connected to the combined magnet, and drives the combined magnet to rotate, or, the transmission component is connected to the Hall sensor, and drives the Hall sensor to rotate.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: September 3, 2019
    Assignee: AUTEL ROBOTICS CO., LTD.
    Inventors: Fazhen Chen, Yongqian Fan, Zhengli Zhang
  • Patent number: 10337958
    Abstract: A vibration analysis method includes the steps of: inputting damage data of a rolling bearing; calculating, by a dynamics analysis program, a history of an exciting force occurring to the rolling bearing due to damage when a rotational shaft of the rolling bearing is rotated; calculating, by a mode analysis program, a vibration characteristics model of the bearing device; and calculating a vibration waveform at a predetermined position on the bearing device by applying to the vibration characteristics model the history of the exciting force calculated in the step of calculating a history of an exciting force.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: July 2, 2019
    Assignee: NTN CORPORATION
    Inventors: Tomoya Sakaguchi, Hideyuki Tsutsui
  • Patent number: 10309761
    Abstract: An angle sensor system includes a magnetic field generation unit for generating a rotating magnetic field, and an angle sensor for detecting the rotating magnetic field to generate a detected angle value. The rotating magnetic field contains first and second magnetic field components orthogonal to each other. Each of the first and second magnetic field components contains an ideal magnetic field component and an error magnetic field component. The error magnetic field component causes an angular error that varies with ½ the predetermined period. The angle sensor includes first and second detection signal generation units. Each of the first and second detection signal generation units includes a magnetic layer whose magnetization direction varies according to the direction of the rotating magnetic field. The magnetic layer is provided with a magnetic anisotropy that is set to reduce the angular error resulting from the error magnetic field component.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: June 4, 2019
    Assignee: TDK CORPORATION
    Inventors: Keisuke Uchida, Hiraku Hirabayashi
  • Patent number: 10310627
    Abstract: The invention provides an instrument control panel that is easily customized and reconfigured, and yet provides the familiar tactile sensation of physical knobs, sliders, and buttons. The instrument control panel comprises one or more interface components that are removably coupled to an interface display wherein the interface components communicate with one or more control components disposed behind the interface display. The present invention lends itself particularly well to an instrument panel.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: June 4, 2019
    Assignee: APPLIED MINDS, LLC
    Inventors: Bran Ferren, W. Daniel Hillis, Randall Adam Yates, Ira M. Lichtman, Clinton Blake Hope
  • Patent number: 10295373
    Abstract: A position sensor is disclosed for determining the number of repeating courses of movement of an object and of the precise position of the object in relation to a reference position. The position sensor is disclosed to include a Wiegand module, which is composed of a Wiegand wire having a coil that surrounds the Wiegand wire; a magnetic temporary storage, which is in addition to the Wiegand module; a first sensor element and a second sensor element; a processing electronic circuit, which is configured to evaluate or to determine an output signal that is output by the sensor elements and an information that is stored in the magnetic temporary storage; and a permanent magnet arrangement, which is movable relatively to the Wiegand module in one direction as well as in a direction that is opposite to said one direction.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 21, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Walter Mehnert, Thomas Theil
  • Patent number: 10295372
    Abstract: A magnetic rotation detection apparatus which is capable of suppressing occurrence of assembly failure of components. A gear position sensor 10 is provided with a sensor unit 12 including a Hall element 20, a magnet shaft 11 including a magnet 17, a case 14 housing the sensor unit 12 and the magnet shaft 11, and an inner O-ring 24 sealing a gap between the sensor unit 12 and the case 14. The case 14 includes a metal bearing 19 to support the magnet shaft 11, and the magnet shaft 11 includes a molded portion 18 to fix the magnet 17. A thrust plate 22 is arranged between the molded portion 18 and a base plate 21 (circuit board) of the sensor unit 12, and a spring mechanism 26 is arranged to bias the molded portion 18 to the thrust plate 22. A minute gap is present between the metal bearing 19 and the magnet shaft 11.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 21, 2019
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji Kishi, Toshiya Yoshida
  • Patent number: 10288451
    Abstract: A rotation angle sensing device is provided with a magnet that has a component with a magnetization vector in a direction orthogonal to a rotary shaft, a magnetic sensor part that outputs a sensor signal, and a rotation angle sensing part that detects a rotation angle of a rotating body based upon the sensor signal; the magnet has first and second surfaces substantially orthogonal to the rotary shaft, and a concave side surface that is continuous throughout all circumferences in the circumferential direction; the magnetic sensor part is placed within the space surrounded by the concave side surface, and at a position where an amplitude of a magnetic field intensity Hr and an amplitude of a magnetic field intensity H? on the virtual plane are substantially identical to each other, and outputs either the magnetic field intensity Hr or the magnetic field intensity H? as the sensor signal.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 14, 2019
    Assignee: TDK Corporation
    Inventors: Masaki Nagata, Kazuya Watanabe
  • Patent number: 10288449
    Abstract: An embodiment relates to an angle sensor for detecting a rotational position of a shaft to which a magnetic field arrangement is attached, comprising: a first sensor element, a second sensor element, a support structure, wherein the first sensor element and the second sensor element are mechanically coupled to the support structure, wherein the support structure is arranged to be mechanically connected to a hull, wherein the hull at least partially encloses the shaft.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 14, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10288452
    Abstract: A sensor for an encoder. The sensor includes a sensing circuit, an active setting module, an inactive setting module, and a sensor interface. The sensing circuit module is configured to generate an output signal related to a sensed characteristic. The active setting module includes a first pole width setting. The first pole width setting is associated with a first pole width for the encoder. The first pole width setting is accessible by the sensing circuit module. The inactive setting module includes second pole width setting. The second pole width setting is associated with a second pole width for the encoder. The second pole width setting is not accessible by the sensing circuit module. The sensor interface is configured for retrieving the second pole width setting from the inactive setting module and writing the second pole width setting to the active setting module.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 14, 2019
    Assignee: The Timken Company
    Inventor: John Santos
  • Patent number: 10251295
    Abstract: A first main body portion and a second main body portion of an electronic package are mounted on a mount portion of a support body, first metal projections are caused to enter first receiving recesses, and second metal projections are caused to enter second receiving recesses. When a clip member is mounted in the a first direction, the first metal projections are pressed by first pressing portions of the clip member, the second metal projections are pressed by second pressing portions of the clip member, and an elastic piece is pressed against a rear side of the support body. Thus, the electronic package is secured.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: April 2, 2019
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Ryosuke Suzuki, Keisuke Nakayama, Satoshi Waga, Yuji Kodama, Hisanao Takahara
  • Patent number: 10222234
    Abstract: A sensor device is provided with a magnetic field sensitive element being positioned in a magnetic field of a magnet. The magnet is positioned on an end face of a shaft. The magnetic field sensitive element is configured to sense an orientation angle of the magnetic field in the range between 0° and 360°. The shaft is one of a shaft of a transmission of a vehicle or a shaft of a brushless DC motor or a shaft of a wheel axle of a vehicle.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 5, 2019
    Assignee: Infineon Technologies AG
    Inventors: Dietmar Spitzer, Peter Slama, Harald Witschnig, Leo Aichriedler, Friedrich Rasbornig