Entries |
Document | Title | Date |
20090249892 | TORQUE MEASUREMENT DEVICE - A torque measuring device for measuring the torque of a rotatable shaft. A sensing unit senses the torque on the rotatable shaft. The sensing unit is disposed on the outer surface of the rotatable shaft. A reporting unit is configured to report the torque applied to the rotatable shaft to a central control unit. The reporting unit is mounted at an end of the rotatable shaft. | 10-08-2009 |
20090255349 | ELECTRIC POWER STEERING APPARATUS - In an electric power steering apparatus equipped with a torque sensor that detects torque, the torque sensor has a coil yoke, a coil disposed within the coil yoke, a base section, and a yoke retainer which covers the coil yoke and fixes the coil yoke to the base section. | 10-15-2009 |
20100005909 | TORQUE SENSOR WITH REDUCED SUSCEPTIBILITY TO FAILURE - A sensor arrangement with relatively low disturbance susceptibility for measurement of a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can rotate with respect to one another, having at least one magnetic encoder which is arranged on the first shaft section, and having a stator which is arranged on the second shaft section, wherein the stator has two stator elements which each have projecting fingers, wherein at least one additional, second stator, likewise having two stator elements which each have projecting fingers, is arranged on the second shaft section, and these stators are associated with the magnetic encoder. | 01-14-2010 |
20100116067 | DEVICE FOR DETECTING THE TORQUE AND THE ANGLE OF ROTATION OF A ROTATING SHAFT - A device for detecting torque features of an electric screwer comprises a clutch for coupling with the electric screwer and a clutch for applying a resisting torque. The two clutches ( | 05-13-2010 |
20100139419 | Torque Sensor Arrangement - A sensor arrangement for measurement of a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can rotate with respect to one another, having at least one magnetic encoder which is arranged on the first shaft section and having a stator which is arranged on the second shaft section, wherein the stator has two stator elements each having projecting fingers, and a flux concentrator is associated with each of the stator elements and directly or indirectly supplies to a magnetic field sensor element the magnetic field which is to be detected and is produced by the magnetic encoder, wherein the at least one flux concentrator includes a ring or ring sector, is arranged essentially in the radial outer area with respect to at least one stator element and is magnetically coupled thereto via an air gap. | 06-10-2010 |
20100313681 | SENSOR ARRANGEMENT FOR MEASURING A TORQUE - A sensor arrangement for measuring a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can be rotated relative to one another, including at least one magnetic encoder arranged on the first shaft section, and a stator arranged on the second shaft section, wherein the stator has two stator elements, each with protruding fingers, and the stator elements are assigned respectively or jointly a flux concentrator which leads the magnetic field to be detected, generated by the magnetic encoder, directly or indirectly to at least one magnetic field sensor element, wherein the at least one flux concentrator is fixed to a carrier element embodied in elastic fashion at least in part. | 12-16-2010 |
20100319466 | Stator Assembly and Torque Measuring Device - Disclosed are a stator assembly and a torque assembly device. The stator assembly includes a stator holder, a first stator which includes a first body making contact with an upper end of the stator holder and a plurality of first teeth extending from the first body so as to be disposed inside the stator holder, a second stator which includes a second body making contact with a lower end of the stator holder and a plurality of second teeth extending from the second body so to be alternately aligned with the first teeth inside the stator holder, and a fusion-welded material that is fusion-welded to the stator holder and the first and second bodies. | 12-23-2010 |
20110056309 | DEVICE FOR MEASURING THE TORQUE TRANSMITTED BY A POWER SHAFT - A torque measurement device including: a power shaft transmitting rotary torque about the axis of the power shaft; a first wheel carrying angle marks, the wheel being secured to the power shaft; a reference shaft including a second wheel carrying angle marks; and a sensor placed facing at least one of the wheels to determine the torque transmitted by the power shaft. The first wheel includes first and second series of angle marks and the second wheel includes third and fourth series of angle marks. The marks of the first and third series are mutually parallel, while the marks of the second and fourth series are mutually parallel and are inclined relative to a first axial plane containing the axis, the marks of the first series being inclined relative to the marks of the second series, whereby the signal supplied by the sensor is representative of temperature of the power shaft. | 03-10-2011 |
20110167928 | Torque sensor - A torque sensor detects a torque acting on a torsion bar provided between a first shaft and a second shaft on the basis of a magnetic flux density led to a rotating magnetic circuit portion from a magnetism generating portion. The magnetism generating portion includes a back yoke and a ring magnet. The back yoke includes a fitting portion fitted onto the first shaft, a joint portion to which the ring magnet is joined, and a stress reduction cutout that suppresses a transmission of a deformation stress generated in a radial direction of the fitting portion to the joint portion. | 07-14-2011 |
20110214514 | LOAD MONITORING FOR ELECTROMECHANICAL SYSTEMS - A method for determining a load on a driven component of a rotating or stationary electromechanical system includes locating a rotationally flexible shaft portion in operable communication with a driving component having a drive rotor rotable about an axis and the driven component. The shaft portion is operably connected thereto. Angular positions of the drive rotor and the driven component are determined. A magnitude of a load on the driven component is calculated based on a difference in angular position of the drive rotor and the driven component and a known torsional rigidity of the shaft portion. | 09-08-2011 |
20110214515 | Manifold Sensing Apparatus for Steering - Provided is a complex sensing apparatus for a steering system. In the complex sensing apparatus in accordance, since an insertion projections of a first PCB are inserted into a through-holes of a second PCB to be press-fitted to each other, the first PCB is securely coupled to the second PCB. In addition, since a support member configured to surround and support an edge of the first PCB is coupled to the second PCB, the first PCB is more securely coupled to the second PCB. Accordingly, since there is no probability of separating the first PCB from the second PCB and there is no probability of occurrence of cracks in a soldered part between the first and second PCBs, reliability of products can be improved. | 09-08-2011 |
20110239785 | RING TYPE PIEZOELETRIC DEVICE, METHOD FOR PROCESSING THE SAME, AND TORQUE SENSOR ASSEMBLED WITH THE SAME - A method for processing a ring type piezoelectric device comprises: providing a ring type piezoelectric embryo; printing at least a pair of electrodes to divide the ring type piezoelectric embryo into a plurality of equal sections; and immersing the divided ring type piezoelectric embryo into high temperature silicon oil with high voltage for polarization so as to make the polarization of the ring type piezoelectric device perpendicular to a cross-section thereof. | 10-06-2011 |
20110252894 | FENCE JUMPING DETECTION ROD HAVING ELASTICALLY SUPPORTED BALL - The object of the present invention is to provide an improved fence jumping detection rod that solves the problem in regard to erroneous alarms caused by unspecified external factors such as approaching animals, strong winds, or the like, and that is capable of quickly restoring to the original state after detection of a fence jumping. To achieve the object, the fence jumping detection rod according to the present invention includes: a support rod having a support portion for supporting a mesh or a line, and a shaft coupling portion extending to the one side of the support portion; a shaft support coupled to the shaft coupling portion via a joint shaft to enable the support rod to move in an arc-like motion; an elastically supported ball allowing the support rod to move in an arc-like motion only when a torque greater than a torque set about the joint shaft is imposed on the shaft coupling portion; and a sensing means for sensing an arc-like motion of the support rod. | 10-20-2011 |
20120103111 | Method and Apparatus for Continuous Sectional Magnetic Encoding to Measure Torque on Large Shafts - Magnetically encoded shafts for use in detecting forces exerted on the shaft during operation. Magnetically encoded regions, arranged in tracks or bands, encircle the shaft and are formed within or affixed to the shaft. The magnetically encoded regions define force-sensitive regions therebetween. Magnetic fields surround the force-sensitive regions and are altered by force vectors passing through the force sensitive region. These magnetic fields are sensed by magnetic field sensors to determine various shaft parameters including, for example: shaft rotational speed, shaft rotational position, and forces exerted on the shaft, e.g., torque, bending forces, stress forces and strain forces. To provide continuous detection of shaft operational parameters and forces, dead zones between magnetically encoded regions are aligned with force sensitive regions associated with magnetically encoded regions in other bands. | 05-03-2012 |
20120186364 | INTEGRATED OIL ROUTING SLEEVE AND TORQUE SENSOR - A torque sensor system for a transmission and other powertrain components in a motor vehicle includes a receiver and a transmitter. The receiver is operable to induce and detect a signal from the transmitter that is indicative of a torque load on the transmitter. The receiver is cylindrical and has an outer surface with a maximum, constant diameter. The outer surface defines one or more fluid transfer grooves and a docking port for an electrical connection. The fluid transfer groove and the docking port do not extend beyond the maximum outer diameter of the outer surface. Therefore, the receiver is capable of being press-fit within a component and is capable of routing fluid flow. | 07-26-2012 |
20120227514 | ROTATION ANGLE DETECTION DEVICE AND TORQUE DETECTION DEVICE - A rotor includes a cylindrical magnet having a plurality of magnetic pole pairs. There are two types of the magnitude of magnetic force in the magnetic pole pairs, that is, a relatively large first magnetic force and a second magnetic force that is smaller than the first magnetic force. Three magnetic sensors are arranged around the rotor. A rotation angle computing device detects the peak values of output signals of the respective magnetic sensors. Then, the rotation angle computing device identifies the magnetic pole pair, sensed by the first magnetic sensor, based on a combination of the local maximum values of the three output signals. | 09-13-2012 |
20130125668 | STATOR ASSEMBLY AND TORQUE MEASURING DEVICE - Disclosed are a stator assembly and a torque assembly device. The stator assembly includes a. stator holder, a first stator which includes a first body making contact with an upper end of the stator holder and a plurality of first teeth extending from the first body so as to be disposed inside the stator holder, a second stator which includes a second body making contact with a lower end of the stator holder and a plurality of second teeth extending from the second body so to be alternately aligned with the first teeth inside the stator holder, and a fusion-welded. material that is fusion-welded to the stator holder and the first and second bodies. | 05-23-2013 |
20130192390 | TORQUE DETECTION DEVICE AND ELECTRIC POWER STEERING SYSTEM INCLUDING THE SAME - A torque detection device includes: a magnetic flux collecting unit, and a sensor housing. The magnetic flux collecting unit includes a holder, first and second magnetic flux collecting rings, and a magnetic shield. The holder has upper and lower through-holes. The first and second magnetic flux collecting rings are fitted to an inner periphery of the holder. The magnetic shield is fitted to an outer periphery of the holder so as to cover the through-holes. The sensor housing is formed integrally with the magnetic flux collecting unit by supplying resin onto an outer periphery of the magnetic flux collecting unit. The holder has a resin flow passage in its outer periphery. Resin that is supplied at the time of forming the sensor housing flows into the through-holes through the resin flow passage. | 08-01-2013 |
20130255401 | TORQUE DETECTION DEVICE, AND ELECTRIC POWER STEERING SYSTEM INCLUDING THE TORQUE DETECTION DEVICE - A torque detection device includes a yoke unit. The yoke unit includes a first magnetic yoke and a second magnetic yoke. The first magnetic yoke and the second magnetic yoke each are formed of a strip-shaped soft magnetic plate. The first magnetic yoke has yoke proximity portions and yoke distant portions that are formed by bending the soft magnetic plate. The second magnetic yoke has yoke proximity portions and yoke distant portion that are formed by bending the soft magnetic plate. The distance between each of the yoke proximity portions and a permanent magnet is shorter than the distance between each of the yoke distant portions and the permanent magnet. | 10-03-2013 |
20130276551 | TORQUE SENSOR ROTOR - 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. | 10-24-2013 |
20130298698 | TORQUE SENSOR - A torque sensor which detects a deflection angle between an input and an output shaft which are aligned with a shaft axis. An annular sine ring, annular cosine ring, and annular flux return ring, each constructed of a ferromagnetic material, are coaxially disposed around the shaft axis. A sine spoke has one end attached to the output shaft and its other end closely adjacent the sine ring and, similarly, a cosine spoke is secured to the output shaft at one end and is positioned closely adjacent the cosine ring at its other end. A pair of flux return spokes are also secured to the output shaft, each diametrically opposed from the sine or cosine spoke, and have their outer ends closely adjacent the return ring. A magnetic flux bridge is formed between the return flux ring and the sine ring as well as the cosine ring while magnetic sensors determine the magnitude of the flux across each bridge. A magnet is attached to the input shaft and positioned midway between the cosine spoke and sine spoke so that deflection between the input shaft and output shaft varies the magnitude of magnetic flux across each bridge. | 11-14-2013 |
20130305843 | Torque Angle Sensor - A torque angle sensor according to an exemplary embodiment of the present disclosure includes a torque sensor unit and an angle sensor unit at a housing centrally arranged with a rotation shaft, the torque sensor unit including a stator installed inside the housing, a torque magnet rotatably installed at a center of the stator in conjunction with rotary operation of the rotation shaft, a collector installed at the housing to transmit a magnetic field of the torque magnet, a magnetic device module formed with an individually operating first magnetic device and a second magnetic device in one package to detect the magnetic field transmitted by the collector, and a PCB (Printed Circuit Board) mounted with the magnetic device module, wherein the PCB is arranged to a direction perpendicular to an axial direction of the rotation shaft and installed at a distal end with the magnetic device module. | 11-21-2013 |
20130312539 | TORQUE SENSOR - A torque sensor includes: a torsion bar; a multi-pole magnet; a pair of yokes on an outside of the multi-pole magnet in a radial direction and providing a magnetic circuit in a magnetic field generated by the multi-pole magnet; and a pair of magnetic sensors arranged along a circumferential direction. Each magnetic sensor includes a magnetism sensing part for detecting a magnetic flux density generated in the magnetic circuit, and outputs a detection signal to an external computing device. The magnetic sensors output the detection signals to the external computing device such that the computing device calculates a sum of outputs or a difference of outputs of the magnetic sensors so as to cancel a variation of the outputs produced by a magnetic flux generated from the multi-pole magnet and directly reaching the magnetism sensing parts. | 11-28-2013 |
20130312540 | TORQUE DETECTING APPARATUS - A torque detecting apparatus detects a torque applied to a first shaft, based on a relative rotational displacement between the first shaft and a second shaft caused by torsion in a coupling shaft which couples the first shaft and the second shaft. The torque detecting apparatus includes: first and second magnets which are coupled to the first shaft and the second shaft so as to rotate together with the first shaft and second shaft, respectively; and a plurality of magnetic sensors which are disposed between the first magnet and the second magnet and which detect a rotational angle of the first shaft and a rotational angle of the second shaft. | 11-28-2013 |
20140007701 | TORQUE SENSOR - In a torque sensor that detects torque acting on a torsion bar on the basis of a magnetic flux density conducted to a magnetism collecting ring provided in a housing, the magnetism collecting ring is an annular member formed such that an axial direction end portion thereof is thinner than a central portion. The housing includes an annular groove formed to be capable of accommodating the magnetism collecting ring and provided as a recess in an inner peripheral wall of the housing so as to be deeper than a thickness of the end portion of the magnetism collecting ring, and a caulk portion provided in the inner peripheral wall to caulk the magnetism collecting ring by covering the end portion of the magnetism collecting ring that is fitted into the annular groove. | 01-09-2014 |
20140026681 | METHOD AND APPARATUS FOR DETERMINING AN ELECTRICAL TORQUE OF AN ELECTRICAL MACHINE - A method for determining an electrical torque of an electrical machine includes determining an electrical torque in a first speed range with a first algorithm, and determining the electrical torque in a second speed range with a second algorithm which differs from the first algorithm. An upper limit of the second speed range is slightly higher than a lower limit of the first speed range. An apparatus is provided to determine the electrical torque of the electrical machine with the aforedescribed method. | 01-30-2014 |
20140076064 | RELATIVE ROTATIONAL ANGULAR DISPLACEMENT DETECTION DEVICE, TORQUE DETECTION DEVICE, TORQUE CONTROL DEVICE, AND VEHICLE - A relative rotational angular displacement detection device includes a pair of rotatable members relatively rotatable in a circumferential direction. A permanent magnet is attached to one of the rotatable members and includes magnetic poles magnetized in an axial direction of the axis of rotation and arranged to alternate in polarity in the circumferential direction. A magnetic flux inducing ring includes an annular ring body attached to the other of the rotatable members and is arranged coaxially with the axis of rotation, and a plurality of protrusions having a circumferential width smaller than a circumferential width of a magnetic pole. A magnetic detection portion is configured to detect a magnetic flux of the ring body of the magnetic flux inducing ring. The flux inducing ring is magnetized depending on a relative positions the protrusions and positions of the magnetic poles. | 03-20-2014 |
20140202261 | PIEZOELETRIC SENSING ELEMENT AND TORQUE SENSOR ASSEMBLED WITH THE SAME - A piezoelectric sensing element includes a ring type piezoelectric device, two ceramic structural adhesives, two electrode sheets, two structural adhesives, a ring type sheet, and a disk-shaped cylindrical ceramic sheet. The two ceramic structural adhesives, respectively located above and below the ring type piezoelectric device. The two electrode sheets, respectively located above and below the two ceramic structural adhesives. The two structural adhesives, respectively located above and below the two electrode sheets. The ring type sheet, located above or below one of the two structural adhesives. The disk-shaped cylindrical ceramic sheet, located below or above another of the two structural adhesives. | 07-24-2014 |
20140260683 | NON-CONTACTING TORQUE SENSOR WITH INJECTION MOLDED MAGNETS - A non-contacting torque sensor comprises a magnetic flux generating rotor and a magnetic flux detecting probe. The magnetic flux generating rotor is disposed axially between a first stator and a second stator and has a radially outboard surface and plurality of N pole magnets and S pole magnets alternatingly disposed proximate the radially outboard surface. Each stator has a plurality of stator teeth, with each one of said plurality of stator teeth corresponding to a unique one of said plurality of N pole magnets and S pole magnets. The magnetic flux detecting probe is disposed at a distance from the radially outboard surface and configured for detecting variations in magnetic flux produced by the magnetic flux generating rotor to detect a change of a relative twist between the magnetic flux generating rotor and the first stator and second stator. The N pole magnets and S pole magnets are injection molded. | 09-18-2014 |
20140260684 | ROTATABLE TORQUE-MEASURING APPARATUS AND METHOD - A torque-measurement device that has a rotational axis, and wherein the torque-measurement device includes an inner tubular structure, an outer tubular structure, and a plurality of ribs that each have a length dimension in a rib-length direction parallel to the rotational axis, a rib-width dimension in a width direction perpendicular to the length direction and extending radially rotational axis, and a minimum rib-thickness dimension in a thickness direction perpendicular to the length direction and perpendicular to the width direction, wherein the length dimension is greater than the width dimension and the width dimension is greater than the thickness dimension, wherein each of the plurality of ribs has a center plane that lies in the rib-length direction and the rib-width direction, and wherein a torque applied between the inner tubular structure and the outer tubular structure results in an angular displacement of inner tubular structure relative to the outer tubular structure. | 09-18-2014 |
20140331788 | TORQUE DETECTOR AND ELECTRIC POWER STEERING SYSTEM INCLUDING THE TORQUE DETECTOR - A torque detector includes a permanent magnet, a pair of magnetic yokes, and a magnetic sensor. The magnetic yokes include a first magnetic yoke and a second magnetic yoke. The first magnetic yoke has a first ring and a plurality of first teeth extending from the first ring in an axial direction. The second magnetic yoke has a second ring and a plurality of second teeth extending from the second ring in the axial direction. The first teeth extend in the axial direction beyond the second ring of the second magnetic yoke. The second teeth extend in the axial direction beyond the first ring of the first magnetic yoke. | 11-13-2014 |
20150040686 | TORQUE SENSOR - A torque sensor includes a magnetism generation portion that rotates together with a first shaft, a rotating magnetic circuit portion that rotates together with a second shaft, a fixed magnetic circuit portion fixed to a housing, a magnetism detector that detects a magnetic flux density guided from the magnetism generation portion to the fixed magnetic circuit portion through the rotating magnetic circuit portion in accordance with torsional deformation of the torsion bar, and a shield disposed between the rotating magnetic circuit portion and the magnetism detector in order to shield the magnetism detector magnetically. | 02-12-2015 |
20150101421 | DYNAMOMETER SYSTEM - Provided is a dynamometer system capable of stable speed control and position control even in instances of large load inertia. A speed-control device ( | 04-16-2015 |
20150300898 | Torque Angle Sensor - A torque angle sensor according to an exemplary embodiment of the present disclosure includes a torque sensor unit and an angle sensor unit at a housing centrally arranged with a rotation shaft, the torque sensor unit including a stator installed inside the housing, a torque magnet rotatably installed at a center of the stator in conjunction with rotary operation of the rotation shaft, a collector installed at the housing to transmit a magnetic field of the torque magnet, a magnetic device module formed with an individually operating first magnetic device and a second magnetic device in one package to detect the magnetic field transmitted by the collector, and a PCB (Printed Circuit Board) mounted with the magnetic device module, wherein the PCB is arranged to a direction perpendicular to an axial direction of the rotation shaft and installed at a distal end with the magnetic device module. | 10-22-2015 |
20150338295 | SAW SENSOR ARRANGEMENTS - A SAW sensor arrangement includes a transducer including a support for supporting a SAW device. The support includes a sensor location part located between two oppositely extending attachment parts. The SAW device is mountable to the sensor location part. The sensor arrangement | 11-26-2015 |
20150369678 | TORQUE SENSOR AND MANUFACTURING METHOD THEREFOR - A torque sensor includes: a base portion fixed to a metal shaft having a rod shape as a measurement object of strain; a strain detection element of an surface acoustic wave type which is arranged in the base portion, and detects the strain of the metal shaft ( | 12-24-2015 |
20160153849 | MAGNETIC DETECTION DEVICE AND TORQUE SENSOR INCLUDING THE SAME | 06-02-2016 |
20160153850 | MAGNETIC DETECTION DEVICE AND TORQUE SENSOR INCLUDING THE SAME | 06-02-2016 |
20160195442 | TORQUE MEASUREMENT DEVICE-EQUIPPED ROTATION TRANSMISSION APPARATUS | 07-07-2016 |
20190144060 | WHEEL TELEMETRY MONITORING SYSTEM | 05-16-2019 |
20220136918 | POSITION SENSOR, DESIGNED IN PARTICULAR FOR DETECTING TORSION IN A STEERING COLUMN - A position sensor, designed, in particular, for detecting torsion in a steering column, includes a first magnetized magnetic rotor structure comprising a plurality of magnets, two flux-collecting components, which define at least one air gap in which at least one magnetically sensitive element is positioned. Each collecting component has at least one primary collecting zone extended by at least one extension having at least one secondary collecting zone. The secondary collecting zones end in flattened shoes that form the two poles of the air gap. The transverse mid-plane of the air gap intersects at least one of the extensions. | 05-05-2022 |