A device includes a first assist shaft having a first axially extending bore, the first assist shaft engaging, via the first axially extending bore, a first end of a torsion bar. The device may include a flux carrier engaged on an end of the first assist shaft proximate the torsion bar. The device may include a second assist shaft having a second axially extending bore, the second assist shaft engaging, via the second axially extending bore, a second end of the torsion bar and connected to the first assist shaft by the torsion bar. The device may include a permanent magnet ring having an inner circumference that receives an outer circumference of the second assist shaft and the permanent magnet ring disposed in a third axially extending bore of the flux carrier. The device may include a magnetic flux sensor at least partially disposed in the flux carrier.

To improve the output signal quality of a load measurement by means of active magnetization, the invention provides a load measurement method for measuring a mechanical load on a test object (14), comprising: a) generating and applying a magnetic field to the test object (14); b) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a first magnetic field detection device (20) to generate a first measurement signal (U1, UAB), c) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a second magnetic field detection device (22) to generate a second measurement signal (U1, UAB), d) computationally determining a third measurement signal (UBT) from the first measurement signal (U1, UAB) and the second measurement signal (U2, UAT), and preferably comprising the steps of e) forming a difference from one (U2, UAT) of the first and the second measurement signals and the computationally determined third measurement signal (UBT) to produce an output signal, f) determining the mechanical load applied to the test object (14) based on the output signal. The invention also provides a corresponding load measurement device for carrying out the load measurement method.

An embodiment relates to a sensing device comprising: a housing; a stator disposed within the housing; and a rotor disposed within the stator, wherein the stator comprises a body and a stator tooth coupled to the body, the housing comprises a first surface corresponding to a bottom surface of the stator tooth, and the first surface comprises a curved surface protruding toward the stator tooth. Accordingly, noise can be reduced by reducing the amount of contact between the stator and the housing.

A display control apparatus comprises a receiving unit that receives a steering assist amount in an electric power steering system of a vehicle and a measured value of a yaw rate sensor provided in the vehicle; a sign determination unit that determines a sign of the steering assist amount or a sign of the measured value of the yaw rate sensor received by the receiving unit; and a calculation unit that calculates a display steering assist index value to be displayed on a display device in the vehicle based on the sign determined by the sign determination unit, and the steering assist amount and the measured value of the yaw rate sensor received by the receiving unit.

An embodiment may provide a motor comprising: a stator including stator teeth; and a rotor including a magnet, wherein the stator teeth include a first stator tooth and a second stator tooth disposed within the first stator tooth, wherein the first stator tooth includes a plurality of first teeth, the second stator tooth includes a plurality of second teeth, wherein the first teeth radially overlap the second teeth at the center of the stator in a radial direction, the motor further comprising: a sensor and a collector disposed between the first stator tooth and the second stator tooth in the radial direction, and the motor further comprising: a circuit board on which the sensor is disposed; and a housing accommodating the circuit board, wherein the collector includes a first collector and a second collector disposed within the first collector, the sensor is disposed, in the radial direction, between the first collector and the second collector, and the housing includes a first protrusion, wherein the first protrusion comprises: a body disposed, in the radial direction, between the first collector and the second collector; a head disposed at an upper end of the body; and a first groove, wherein the head includes a first surface and a second surface disposed so as to face each other, wherein the first surface is in contact with an upper end of the first collector and an upper end of the second collector, the first groove is disposed so as to be concave on the second surface, and a portion of the first groove is disposed to overlap the first and second collectors in the radial direction.

An embodiment may provide a sensing device comprising: a stator; and a rotor including a magnet, wherein the stator comprises a first stator tooth, a second stator tooth, and a collector disposed between the first stator tooth and the second stator tooth, and the collector comprises a first collector and a second collector having a different length from the first collector.

A handwheel actuator for a steer by wire system may include a compressive loading assembly, a feedback actuator and a column for operably coupling a handwheel to the handwheel actuator. The column may operably couple a handwheel to the handwheel actuator. The column may include a column shaft extending from a first end of the column to a second end of the column. The feedback actuator may be operably coupled to the second end of the column. The feedback actuator may provide tactile feedback to an operator responsive to movement of the handwheel. The feedback actuator may include a torsion bar substantially coaxial with the column shaft. The compressive loading assembly may be disposed at the second end of the column to operably couple the column shaft and the torsion bar under a compressive load when the column is joined to the feedback actuator.

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.

A torque sensor assembly including a shaft configured to receive an applied torque. The shaft includes at least one region being magnetoelastic and configured to generate a magnetic field in response to the applied torque. A plurality of sensors, circumferentially positioned around the at least one region, configured to generate a plurality of signals that are indicative of the magnetic field. Each of the plurality of signals includes multiple harmonic components. A controller is connected with the plurality of sensors and being configured to receive the plurality of signals and determine (i) an average of the plurality of signals in order to cancel at least one of the harmonic components of the multiple harmonic components for each of the plurality of signals, and (ii) a magnitude of the applied torque based on the average of the plurality of signals.

A torque-angle sensor includes a torque sensing unit, an angle sensing unit, and a PCB. The torque sensing unit includes a signal input rotor and a signal output rotor. The angle sensing unit includes a driving gear and a driven gear that is fitted round and fixed to one of the signal rotors. The PCB has a torque magnetic field generating unit, an input shaft signal collecting unit, and an output shaft signal collecting unit that sense a rotation angle and torque of the signal rotors. The PCB has an angle magnetic field generating unit and an angle collecting unit that sense a rotation angle of the driving gear and the driven gear. The torque magnetic field generating unit, the input shaft signal collecting unit, the output shaft signal collecting unit, the angle magnetic field generating unit, and the angle collecting unit are configured as coils formed by printed circuits.