公开(公告)号：US09903773B2

公开(公告)日：2018-02-27

申请号：US15065049

申请日：2016-03-09

Applicant: LG INNOTEK CO., LTD.

Inventor： Changhwan Lee

IPC: G01L3/04 ,  G01L3/10 ,  G01L25/00

CPC classification number: G01L3/104 ,  G01L3/04 ,  G01L25/003

Abstract: Disclosed is a rotor for a torque sensor configured to improve a mechanical coupling force with respect to a jig in a process of adjusting a torque center, thus enabling a fine adjustment, the rotor including a rotor body having a sleeve coupled to a rotating shaft and a yoke protruding from an outer circumference of the sleeve, a ring-shaped magnet coupled to an outer circumference of the yoke, and an anti-slip structure formed on the rotor body and partially coming into contact with a jig during a rotating process for adjusting a torque center, thus inhibiting slipping between the rotor body and the jig when a rotating force is transmitted, so that slipping between the jig and the rotor body is inhibited to enable precise transmission of the rotating force whereby accuracy is improved during fine adjustment of the torque center.

公开(公告)号：US09885627B2

公开(公告)日：2018-02-06

申请号：US14696043

申请日：2015-04-24

Applicant: Apple Inc.

Inventor： Baboo V. Gowreesunker ,  Wayne C. Westerman

IPC: G01L25/00

CPC classification number: G01L25/00

Abstract: Disclosed herein are methods and systems for compensating for drift that may be present in a force sensing device. In some embodiments, the force sensing device may be calibrated to compensate for the drift. The calibration may include receiving an input waveform associated with a received amount of force on the force sensing device. A system model that approximates a transfer function that provides an output waveform associated with the input waveform is then determined. Using the system model, an inverse transfer function associated with the system model is also determined. The inverse transfer function may then be applied to the output waveform which compensates for the drift.

公开(公告)号：US20170363500A1

公开(公告)日：2017-12-21

申请号：US15539319

申请日：2015-12-21

Applicant: SCS CONCEPT ITALIA SRL

Inventor： Roberto BOCCELLATO

IPC: G01L25/00 ,  B25H1/00 ,  G01N3/22 ,  G01L3/20 ,  B25B21/00

CPC classification number: G01L25/003 ,  B25B21/00 ,  B25H1/005 ,  G01L3/20 ,  G01N3/22

Abstract: A test bench for screwdrivers comprises a hydraulic brake unit (11) provided with a coupling (12) for a screwdriver to be tested and angle and torque measurement transducers (15). The brake unit (11) is supplied by a proportional electrovalve (16) under the control of a PID controller (19) which receives an electrovalve control signal (22) from a control unit (26) so as to follow braking curves depending on the angle of rotation and/or torque measured. The bench comprises a memory (21) for storing different sets of parameters for the PID controller (19), which can be selected by the control unit (26) so as to have different control characteristics. A method for controlling the bench is also described.

公开(公告)号：US09778132B1

公开(公告)日：2017-10-03

申请号：US14971304

申请日：2015-12-16

Applicant: X Development LLC

Inventor： Junichi Urata ,  Yoshito Ito ,  Masaki Hamafuji

IPC: G05B19/18 ,  G01L25/00 ,  B25J5/00 ,  B25J9/16

CPC classification number: G01L25/00 ,  B25J13/085 ,  B62D57/032 ,  Y10S901/01

Abstract: An implementation may involve causing a foot of a robot to orient in a first position, where the foot comprises a sole configured to contact a surface, where the sole comprises a first edge and a second edge, and where in the first position: (i) the first edge contacts the surface, and (ii) a zero moment point (ZMP) is located on the first edge; receiving, from a force sensor, (i) first force data indicative of a first force and (ii) first moment data indicative of a first moment; determining a calibration of the force sensor based at least in part on the first force data, the first moment data, and a distance between the ZMP and a measurement location on the robot; and while the robot is engaged in bipedal movement, controlling the bipedal movement of the robot based at least in part on the calibration.

公开(公告)号：US09766143B2

公开(公告)日：2017-09-19

申请号：US14898443

申请日：2014-06-10

Applicant: ATLAS COPCO BLM S.R.L.

Inventor： Marcello Traballoni ,  Massimo Usuelli ,  Fabio Garavaglia ,  Sergio Giannone

IPC: G01L5/28 ,  G01L25/00

CPC classification number: G01L5/28 ,  G01L25/003

Abstract: System for checking the correct operation of braking devices on a test stand for industrial screwdrivers comprising a plurality of hydraulic brakes (F), to which the screwdriver is associated with, suitably controlled by a hydraulic circuit comprising a pump (P), a pressure regulating valve (VP). Each brake is provided with external measurement transducers (TR) connected to an electronic control board (SP). An electronic processor (U) that communicates with such board and controls such hydraulic circuit, such pump and such valve, comprises a suitable control program stored therein.

公开(公告)号：US09751238B2

公开(公告)日：2017-09-05

申请号：US15037461

申请日：2014-12-09

Applicant: Kobe Steel, Ltd.

Inventor： Toru Okada ,  Yusuke Tanaka

IPC: B29B7/28 ,  B29B7/18 ,  B29B7/26 ,  B01F7/08 ,  B01F15/00 ,  G01L5/12 ,  B29C47/08 ,  G01L25/00 ,  B29B7/24

CPC classification number: B29B7/283 ,  B01F7/081 ,  B01F15/00201 ,  B29B7/183 ,  B29B7/246 ,  B29B7/263 ,  B29C47/0801 ,  F16C19/383 ,  F16C19/522 ,  F16C23/086 ,  F16C2233/00 ,  G01L5/12 ,  G01L25/00

Abstract: A device for measuring a thrust load acting on a rotor of a hermetically sealed kneader includes displacement sensors (19) and a load-calculating member. The displacement sensors (19) are configured to measure relative displacement along the axial direction of an outer ring-fixing member (17), which is for fixing the outer ring (16) of one end of a bearing (6), or a casing (18) with respect to an inner ring-fixing member (20), which is for fixing the inner ring (13) of the one end of the bearing (6), or the rotor (5). The load-calculating unit calculates the thrust load acting on the rotor (5) by multiplying the relative displacement measured by the displacement sensors (19) by a conversion coefficient.

公开(公告)号：US09742316B2

公开(公告)日：2017-08-22

申请号：US14693165

申请日：2015-04-22

Applicant: Schneider Electric Industries SAS

Inventor： Christophe Durand ,  Delcho Penkov

IPC: H02P1/16 ,  G01L25/00 ,  H02P1/28 ,  H02P1/04

CPC classification number: H02P1/28 ,  H02P1/04

Abstract: The invention relates to a method of starting an electric motor (10) powered by an alternating power supply voltage, said method consisting of supplying current to the motor (10) with a delay tret, during each period of the power supply voltage. The starting method comprises a first sequence in which the following steps are carried out during each nth period of the power supply voltage, where n is an integer number greater than 0: a) determine the value of a variation of a resistance of the electric motor during the previous n periods of the power supply voltage; b) compare said value of the variation of the determined motor resistance with a first threshold resistance value; c) if the value of the variation of the motor resistance is less than the first threshold value, reduce tret. The invention also relates to a starter device and a computer program.

公开(公告)号：US09725111B2

公开(公告)日：2017-08-08

申请号：US14771503

申请日：2014-02-24

Applicant: KAYABA INDUSTRY CO., LTD.

Inventor： Hideo Maehara ,  Ryota Yamada

IPC: B62D5/04 ,  G01L5/22 ,  G01L25/00

CPC classification number: B62D5/0463 ,  B62D5/0421 ,  G01L5/221 ,  G01L25/003

Abstract: Output signals of a torque sensor include a first output signal used in an assist control and a second output signal used in controls other than the assist control. An adjusting device of an electric power steering device includes an input torque meter for measuring an input torque applied to the input shaft, an output torque meter for measuring an output torque output by the steering mechanism, and a sensor output corrector for correcting an output signal of the torque sensor. The sensor output corrector corrects the first output signal so that a relationship between the input torque measured by the input torque meter and the output torque measured by the output torque meter becomes an ideal characteristic set in advance, and corrects the second output signal so that an input torque detected by the torque sensor coincides with the input torque measured by the input torque meter.

公开(公告)号：US20170191902A1

公开(公告)日：2017-07-06

申请号：US15313704

申请日：2016-02-22

Applicant: HORIBA, Ltd.

Inventor： Mineyuki KOMADA ,  Kazuhiro SHIOMI

IPC: G01M17/007 ,  G01L25/00

Abstract: A vehicle test device is to test performance of a vehicle or a part of the vehicle by rotating a wheel placed on a rotating body in order to reproduce an actually running state of the vehicle by controlling rotational speed of the wheel so as to make the rotational speed equal to a target value accurately, and a rotation related value that indicates rotational speed of the wheel or torque applied to the wheel is obtained, and the rotational speed of the rotating body or the torque applied to the rotating body is controlled so as to make the rotation related value equal to a predetermined target value.

公开(公告)号：US09625332B2

公开(公告)日：2017-04-18

申请号：US14916668

申请日：2014-09-03

Applicant: NSK Ltd.

Inventor： Tomoharu Saito ,  Yasuyuki Matsuda ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tohru Ueda ,  Yuka Kaneko ,  Tetsu Takehara ,  Hiroyasu Yoshioka

IPC: G01L3/10 ,  G01L25/00

CPC classification number: G01L3/104 ,  G01L3/101 ,  G01L3/109 ,  G01L25/003

Abstract: In order to implement a structure capable of improving the resolution of torque measurement while preventing the plastic deformation of a torsion bar (15), an input-side stopper (61) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an input-side rotating body (55) that includes an input shaft (13) and an input gear (7), and an output-side stopper (63) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an output-side rotating body (56) that includes an output shaft (14) and an output gear (8). The input-side stopper (61) and the output-side stopper (63) are combined so as to be engaged to be able to transmit torque only when the torsional angle within the elastic range of the torsion bar (15) reaches a predetermined amount.