公开(公告)号：US20230135927A1

公开(公告)日：2023-05-04

申请号：US17973869

申请日：2022-10-26

申请人： Kistler Holding AG

发明人： Stanko Tepsic ,  Alexander Roshau ,  Tobias Waibel

IPC分类号： G01L3/10

摘要： A torque and angle of rotation detection system is rotatable about an axis of rotation and includes a stator unit separated from a rotor unit by an air gap disposed radially with respect to the axis of rotation. The rotor unit includes strain gauges, dipole magnets and a secndary coil with ferrite elements. The stator unit includes a magnetic field sensor and a primary coil wherein a primary electrical voltage in the primary coil generates a secondary electrical voltage in the secondary coil.

公开(公告)号：US20230114605A1

公开(公告)日：2023-04-13

申请号：US17913245

申请日：2021-03-10

申请人： Robert Bosch GmbH

发明人： Adrian Kussmann ,  Christoph Ossmann ,  Frank Schatz ,  Michael Zegowitz ,  Sven Schickle

IPC分类号： G01L3/10 ,  B62J45/411

摘要： The invention relates to a system for torque measurement, in particular at a drive of an e-bike, including at least one shaft which is rotatable about an axis, is magnetized in at least one axial partial section, and onto which a torque to be measured can be applied, at least one TMR sensor, which is situated outside the shaft and is designed for at least two-dimensionally, in particular three-dimensionally, measuring a magnetic field and which is arranged in relation to the at least one partial section in such a way that, when the shaft rotates about the axis, the at least one sensor measures a change of the magnetic field due to the magnetostrictive effect in the magnetized partial section when the torque acts on the shaft, and an evaluation unit, which is connected to the at least one TMR sensor and is designed for determining a torque acting on the shaft based on the measured values of the magnetic field.

公开(公告)号：US11597436B2

公开(公告)日：2023-03-07

申请号：US17432321

申请日：2021-04-07

申请人： NSK LTD.

发明人： Dai Suzuki ,  Takayuki Kobayashi ,  Shin Kumagai ,  Hidetaka Nakamura

IPC分类号： B62D15/02 ,  G06F1/3287 ,  B62D5/04 ,  B62D6/00 ,  G01B7/30 ,  G01D5/16 ,  G01L3/10 ,  G01L5/22 ,  G01D5/244

摘要： The power management unit supplies first power that is continuous power to the second sensor when the power switch is on, supplies second power that is intermittent power having a voltage lower than the first power to the second sensor when the power switch is off, and outputs rotation number information representing a rotation number of the motor rotation shaft based on the second sensor signal. The power management unit includes a comparator that operates using the second power as the power source when the power switch is off and compare the second sensor signal and the reference voltage, and a counter that detects the rotation number of the motor rotation shaft by counting the output of the comparators.

公开(公告)号：US20230068057A1

公开(公告)日：2023-03-02

申请号：US17890788

申请日：2022-08-18

申请人： NCTE AG

发明人： Robert Mutz ,  Bernhard Mayr

IPC分类号： G01L3/10 ,  H01F27/28 ,  G01L5/00

摘要： A coil arrangement has a first cylindrical coil having a first winding direction and a second cylindrical coil having a second winding direction. The first and second cylindrical coils are arranged in longitudinal succession aligned on a common axis. Mutually adjacent ends of the first and second cylindrical coils are electrically connected to each other, and the second winding direction is opposed to the first winding direction.

公开(公告)号：US11561141B2

公开(公告)日：2023-01-24

申请号：US16994863

申请日：2020-08-17

申请人： Methode Electronics Malta Ltd.

发明人： Johannes Gießibl

IPC分类号： G01L3/00 ,  G01L3/10

摘要： A method for measuring stress applied to a magnetoelastic body, simultaneously detecting a potential external magnetic field affecting a magnetoelastic sensor and allocating a non-stress related influence affected by the field on the body, including applying at least two opposite magnetic zones on the body, providing at least one sensor including at least one first (1) and second (2) channel having at least two axially aligned coils each, arranged adjacent to the magnetized zone of the body, both channels having different sensitivity relative to the field, setting-up channel 1 as a common mode rejection channel and channel 2 as a common mode acceptance channel, reading the magnetized zones when stress is applied to the body, measuring the stress by channel 1 leading to an opposite sensitive direction, and detecting the impact of the field to the magnetized zones by channel 2 leading to an identical sensitive direction.

公开(公告)号：US20230015343A1

公开(公告)日：2023-01-19

申请号：US17865638

申请日：2022-07-15

申请人： NCTE AG

发明人： Julian Nacke ,  Florian Eckschlager ,  Bernhard Mayr

IPC分类号： G01L3/10

摘要： A drive bearing includes an element rotatably mounted and which comprises magnetized magnetostrictive material. A torque can be applied to the element and the magnetostrictive magnetized material is formed to generate at a first position outside the element a magnetic field as a function of the torque applied. A measuring circuit comprises a first magnetic field sensor for detecting a total magnetic field at the first position, the total magnetic field comprising the magnetic field generated by the magnetostrictive magnetized material and an external magnetic field. The first magnetic field sensor outputs a first signal as a function of the total magnetic field detected. A second magnetic field sensor detects the external magnetic field at a second position and outputs a second signal as a function of the external magnetic field detected. The measuring circuit determines a value of the torque applied using the first and the second signals.

公开(公告)号：US20230003593A1

公开(公告)日：2023-01-05

申请号：US17784443

申请日：2020-11-27

申请人： NEURA ROBOTICS GMBH

发明人： Josef SIRAKY

IPC分类号： G01L3/10 ,  F16H49/00

摘要： A device for determines the torque and/or the rotary angle between a first shaft and a second shaft, which are coupled via a gear mechanism to rotate relative to one another about an axis of rotation. The first shaft has a first end region, a second end region, and a first direction vector pointing in parallel with the axis of rotation from the first end region to the second end region, and the second shaft has a first end region, a second end region, and a second direction vector pointing in parallel with the axis of rotation from the first end region to the second end region. The first shaft is designed as a hollow shaft and the second shaft is arranged coaxially in the first shaft in such a way that the first direction vector and the second direction vector have the same orientation.

公开(公告)号：US20220407440A1

公开(公告)日：2022-12-22

申请号：US17776474

申请日：2020-11-13

申请人： AVL LIST GMBH

发明人： Francesco DUCHI ,  Pirmin PROIER ,  Jakob MODER ,  Rüdiger TEICHMANN

IPC分类号： H02P21/05 ,  H02P21/20 ,  H02P21/22 ,  G01L1/16 ,  G01L3/10 ,  G01L5/00

摘要： The invention relates to a method and system for calibrating a control device, in particular an inverter control device, of an electric motor, comprising operating the electric motor as part of a force flow; performing a force measurement by means of piezo elements which are arranged in the force flow in such a way that the force flow is applied, in particular exclusively, to the piezo elements; and adapting a control characteristic the control device on the basis of at least one force component derived from the force measurement, in particular a change in the at least one force component and/or at least one torque component derived from the force measurement, in particular a change in the torque component.

公开(公告)号：US20220390328A1

公开(公告)日：2022-12-08

申请号：US17755984

申请日：2020-11-13

申请人： SAFRAN AIRCRAFT ENGINES

发明人： Alméric Pierre Louis GARNIER ,  Marion CUNY ,  Tony Alain Roger Joël LHOMMEAU ,  Claire Marie FIGEUREU

IPC分类号： G01M15/14 ,  G01L3/10 ,  F01D21/00

摘要： A method for monitoring the torsion of a rotary shaft on an aircraft turbomachine based on the measurements from at least three sensors distributed along the rotary shaft to divide the shaft into at least two shaft segments, the method comprising: a step of measuring, for each sensor, a parameter dependent on the rotation of the shaft, a step of calculating, for each achievable pair of sensors, a parameter related to the torsion of the shaft, a step of comparing the different calculated parameters related to the torsion of the shaft with references, a step of detecting damage on a shaft segment at the end of the comparison step, and a step of indicating the localization of the damage on the shaft from the shaft segment for which damage has been detected.

公开(公告)号：US11486776B2

公开(公告)日：2022-11-01

申请号：US16468584

申请日：2017-12-12

申请人： Kongsberg Inc.

发明人： Guillaume Simard

IPC分类号： G01L3/10 ,  G01L5/00 ,  G01L5/13 ,  G01L5/22 ,  G01R33/07

摘要： A torque sensor is provided. The torque sensor includes a shaft configured to receive an applied torque. The shaft includes a first region and a second region, both regions being magnetoelastic. The first region and the second region generate a first magnetic field and a second magnetic field in response to the applied torque. The shaft also includes a third region disposed between the first region and the second region. The third region generates a substantially negligible magnetic field in response to the applied torque. The torque sensor also includes a first sensor disposed adjacent to the first region, a second sensor disposed adjacent to the second region, and a third sensor disposed adjacent the third region. The first sensor senses the first magnetic field, the second sensor senses the second magnetic field, and the third sensor senses an ambient magnetic field.