公开(公告)号：US20240318709A1

公开(公告)日：2024-09-26

申请号：US18671004

申请日：2024-05-22

Applicant: AMERICAN AXLE & MANUFACTURING, INC.

Inventor： Tejas DESAI ,  Edgar B. GOSTIN, JR. ,  Yini CHEN

IPC: F16H48/24 ,  B60K23/04 ,  F16H48/08 ,  G01D5/20

CPC classification number: F16H48/24 ,  B60K23/04 ,  F16H48/08 ,  G01D5/2013 ,  B60K2023/046

Abstract: A vehicle driveline component including an armature disposed along a translation axis; a coil assembly having a coil; a coil driver electrically coupled to the coil; the coil driver generates an electromagnetic field that causes relative motion between the coil assembly and the armature along the translation axis; an oscillator circuit having a resonant circuit including an inductor, the oscillator circuit electrically coupled to the coil generating an oscillating signal having a frequency that varies based on a spacing between the armature and the coil assembly along the translation axis; and a controller coupled to the oscillator circuit and the coil driver, wherein the controller is configured to apply a drive signal to the coil driver to provide the modulating power signal to the coil assembly, measure a frequency value of the oscillator circuit, and determine a position of the vehicle driveline component based on the measured frequency value.

公开(公告)号：US20240142276A1

公开(公告)日：2024-05-02

申请号：US18120002

申请日：2023-03-10

Applicant: Industrial Technology Research Institute

Inventor： JUI-PING CHANG

IPC: G01D5/20

CPC classification number: G01D5/2013

Abstract: A battery-free rotation detecting device includes a rotatable carrier, a first magnetic element, a second magnetic element, a magnetic field shield and a detection coil set. The rotatable carrier has a rotation axis. The first magnetic element is located on the rotatable carrier and has a plurality of first magnetizing portions, and the magnetization directions of the first magnetizing portions are parallel to the rotation axis. The second magnetic element is spaced apart from the first magnetic element and has a plurality of second magnetizing portions. The magnetization directions of the second magnetizing portions are parallel to the rotation axis. The magnetic field shield located on the first magnetic element or the second magnetic element, is used to reduce the magnetic flux density between the first magnetic element and the second magnetic element. The detection coil set is located between the first magnetic element and the second magnetic element.

公开(公告)号：US20230266150A1

公开(公告)日：2023-08-24

申请号：US18017129

申请日：2021-07-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Ho Min CHOI ,  Sung Wook BYUN

IPC: G01D5/20 ,  G01M17/06

CPC classification number: G01D5/2013 ,  G01M17/06 ,  B62D15/02

Abstract: An embodiment provides a sensing device comprising: a magnet; a first collector disposed to correspond to a path along which the magnet moves; and a first sensor disposed at one side of the first collector, wherein the first collector comprises a first leg part and a second leg part, the first leg part and the second leg part each comprise a facing surface disposed to face the magnet, and the sensing device comprises an area in which a gap between the first leg part and the second leg part increases along a direction from one side toward the other side thereof or an area in which the facing surface of each of the first leg part and the second leg part has a width decreasing along a direction from one side toward the other side thereof. Accordingly, the sensing device can reduce an effect of an external magnetic field to improve sensing accuracy.

公开(公告)号：US11703359B2

公开(公告)日：2023-07-18

申请号：US16868587

申请日：2020-05-07

Applicant: Kyocera AVX Components (Werne) GmbH

Inventor： Paul Smith ,  Robert Wood ,  John Simm ,  Timothy Biggs

IPC: G01D5/20

CPC classification number: G01D5/2013

Abstract: An inductive position sensor may be configured to detect relative position between a first member and a second member. The inductive position sensor may include an inductive sensor element configured to be coupled to the first member and a screening layer formed over a screened portion of a member surface of the second member such that an exposed portion of the member surface is free of the screening layer. The screening layer may be configured to reduce an effect on induced signals in the inductive sensor element caused by the screened portion of the second member.

公开(公告)号：US20180220533A1

公开(公告)日：2018-08-02

申请号：US15833527

申请日：2017-12-06

Applicant: DR. Johannes Heidenhain GmbH

Inventor： Lutz Rissing ,  Marc Oliver Tiemann ,  Alexander Frank

IPC: H05K1/16 ,  H05K1/02 ,  H01R12/63 ,  H01R4/02 ,  H01R4/34 ,  H05K1/18 ,  G01D5/20 ,  G01D5/14 ,  G01D5/16 ,  G01D5/24 ,  G01D5/26

CPC classification number: H05K1/165 ,  G01D5/142 ,  G01D5/16 ,  G01D5/20 ,  G01D5/2013 ,  G01D5/24 ,  G01D5/26 ,  H01L21/00 ,  H01R4/023 ,  H01R4/027 ,  H01R4/34 ,  H01R12/63 ,  H05K1/028 ,  H05K1/189 ,  H05K2201/056 ,  H05K2201/10121 ,  H05K2201/10151 ,  H05K2201/10356 ,  H05K2201/10409 ,  H05K2201/10522

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.

公开(公告)号：US20180111572A1

公开(公告)日：2018-04-26

申请号：US15420914

申请日：2017-01-31

Applicant: Samsung SDI Co., Ltd.

Inventor： Maximilian Hofer ,  Thomas Korherr

IPC: B60R16/02 ,  G01R27/26

CPC classification number: B60R16/02 ,  G01D5/14 ,  G01D5/145 ,  G01D5/20 ,  G01D5/2013 ,  G01D5/24466 ,  G01R27/2611

Abstract: Embodiments of the present invention provide a crash detection circuit for detecting a crash of a vehicle and including a transformer including a first inductor as a part of a crash signal generation circuit, and a second inductor as a part of a crash signal evaluation circuit, and galvanically isolated from the first inductor, a first comparator including an output, an inverting input coupled to a first terminal of the second inductor, and a non-inverting input electrically coupled to a second terminal of the second inductor, and a window comparator including a first input terminal electrically connected to the output of the first comparator for an input voltage to be evaluated, and two second input terminals for receiving reference voltages.

公开(公告)号：US20180080800A1

公开(公告)日：2018-03-22

申请号：US15674227

申请日：2017-08-10

Applicant: Apple Inc.

Inventor： Denis G. Chen ,  Arman Hajati ,  Manoj K. Bhattacharyya

IPC: G01D5/20 ,  G01D5/14

CPC classification number: G01D5/2013 ,  G01D5/142 ,  G01D5/145

Abstract: An integrated circuit (IC) chip including an array of asymmetrically distributed magnetic field sensing elements. Additionally, an integrated circuit (IC) chip includes a substrate, a sensing coil supported by the substrate and enclosing a portion of substrate, and a Hall effect sensor supported by the portion of the substrate enclosed by the sensing coil.

公开(公告)号：US20180040401A1

公开(公告)日：2018-02-08

申请号：US15554541

申请日：2016-03-09

Applicant: THINK LABORATORY CO., LTD.

Inventor： Tatsuo SHIGETA ,  Kaku SHIGETA ,  Shintaro SUGAWARA

IPC: H01F1/147

CPC classification number: H01F1/14708 ,  F15B15/14 ,  F15B15/1428 ,  F15B15/28 ,  F15B15/2861 ,  G01B7/00 ,  G01D5/2013

Abstract: Provided are a functional cylinder body comprising magnetic patterns and non-magnetic patterns formed on a circumferential surface and a manufacturing method therefor.The functional cylinder body comprises: a cylinder body with recesses, which has recess patterns and non-recess patterns formed by forming recesses on a circumferential surface of a cylinder main body, the circumferential surface of the cylinder main body being made of any one of a magnetic material and a non-magnetic material; and functional patterns, which are made of any one of the magnetic material and the non-magnetic material and embedded in the recess patterns, in which magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material are adjacently formed by embedding the non-magnetic material in the recess patterns when the circumferential surface of the cylinder main body is made of the magnetic material and by embedding the magnetic material in the recess patterns when the circumferential surface of the cylinder main body is made of the non-magnetic material.

公开(公告)号：US20180023940A1

公开(公告)日：2018-01-25

申请号：US15657407

申请日：2017-07-24

Applicant: Regents of the University of Minnesota

Inventor： Ryan Madson ,  Rajesh Rajamani

IPC: G01B7/00 ,  G01V3/10 ,  H02J50/10 ,  G01D5/20

CPC classification number: G01B7/003 ,  G01B7/30 ,  G01D5/145 ,  G01D5/147 ,  G01D5/2013 ,  G01V3/10 ,  G01V3/12 ,  H02J50/10

Abstract: A position sensing system for measuring a position of a moving object includes an electromagnet configured to generate an alternating magnetic field, and a magnetic sensor configured to measure an intensity of a first magnetic field that is based on the alternating magnetic field. A controller is configured to estimate a position of the moving object based on the measured intensity of the first magnetic field.

公开(公告)号：US20170277134A1

公开(公告)日：2017-09-28

申请号：US15453240

申请日：2017-03-08

Applicant: The Swatch Group Research and Development Ltd

Inventor： Francois GUEISSAZ

IPC: G04F10/00 ,  A63B71/06 ,  G01D5/20

CPC classification number: G04F10/00 ,  A63B71/0686 ,  G01D5/20 ,  G01D5/2006 ,  G01D5/2013 ,  G01D5/202

Abstract: The invention relates to a circuit for detecting a variation in inductance of the magnetic circuit of an inductive displacement sensor, wherein the detector circuit comprises:a first flip flop arranged to supply a first signal comprising a voltage pulse of necessary and sufficient duration to charge the coil to a threshold current, wherein the first signal is applied to a first terminal of the coila pulse generator configured to supply a reference signal comprising a reference pulsea clock signal generator arranged to trigger the charge pulse and the reference pulse periodically and simultaneouslya second flip flop arranged to generate an output signal taking the status of the first signal on the trailing edge of the reference pulse.