A torque sensor unit may include a ring magnet that is connectable to a first partial shaft and is concentric with a longitudinal axis. Two first magnetic flux conductors are connectable to a second partial shaft, are arranged in a ring magnet magnetic field, and conduct magnetic fluxes. A spatially fixed sensor unit may have two second magnetic flux conductors and a magnetic sensor on a printed circuit board, all of which are receivable in a housing. The sensor unit can detect a change in a rotation angle between the partial shafts by measuring magnetic flux density between the first magnetic flux conductors. A second housing surrounds the ring magnet, the first magnetic flux conductors, and the sensor unit. A magnetic shield surrounds the sensor unit at least partially circumferentially relative to the longitudinal axis and is arranged between a housing cover closing the second housing and the second housing.

The present invention relates to a sensor module (100) for a steering system (200) of a vehicle. The sensor module (100) comprises a torque sensor (110), which is designed to identify a steering torque transmitted by the steering system (200), and a rotation angle sensor (120), which is designed to identify an absolute steering angle of the steering system (200). Furthermore, the sensor module (100) comprises a housing (130) for accommodating the torque sensor (110) and the rotation angle sensor (120), wherein the housing (130) has at least one connecting element (132) for detachable attachment to the steering system (200).

Provided are an apparatus for detecting a steering angle, a steering system, and a torque sensing method of the steering system. The apparatus includes a rotor formed in a cylindrical shape having a central region, in which a space for housing a rotary shaft is formed, and configured to have a plurality of permanent magnets of different polarities alternately disposed at regular intervals in a circumferential direction, a stator body formed in a cylindrical shape having a space for housing the rotor, and two stator rings formed in ring shapes coupled to the stator body and disposed at a certain distance in a longitudinal direction of the rotary shaft. Accordingly, it is possible to calculate an accurate torque, and a response rate is increased so that stability and performance of the steering system can be improved.

Systems, methods, and apparatus for differential magnetic field torque sensors that include first and second magnetic targets for coupling to one or more rotatable shafts. The magnetic targets can include multipole ring magnets having a plurality of alternating magnetic domains. First and second differential magnetic field angular position sensors positioned proximate to the magnetic targets produce angular position of the targets and a processing unit is operative to receive an angular position from each of the first and second differential magnetic field angular position sensors and determine a difference between the angular positions. The difference corresponds to an angle between the targets, and the processing unit is operative to calculate, based on the angle, a torque applied to the one or more rotatable shafts.

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.

A device is provided for determining a steering torque in a motor vehicle. The device includes a first shaft a second shaft, a twistable means of connection, a stator means, a multi-pole magnetic means, and a first sensor means and a second sensor means. The first shaft is connected to the second shaft via the twistable means of connection, and the magnetic means is fixed to the first shaft. The stator means is fixed to the second shaft, and the first sensor means is designed for measuring, in the case of a relative rotary movement of the magnetic means relative to the stator means, a first magnetic flux density in a first direction. The second sensor means is designed for measuring, in the case of the relative rotary movement of the magnetic means relative to the stator means, a second magnetic flux density in a second direction. The second direction is opposite to the first direction, and the second sensor means is arranged to be rotationally offset by more than 90° relative to the first sensor means.

A sensing device including a first stator tooth with a plurality of first teeth, a second stator tooth with a plurality of second teeth, in which the first tooth overlaps the second tooth in a radial direction from a center of the stator, and a first angle formed between two ends of a first pole of a magnet based on the center of the stator is the same as a second angle formed between two ends of the first tooth based on the center of the stator.

Differential magnetic field torque sensors include first and second magnetic field concentrators that guide magnetic flux to a magnetic field sensor from first and second magnetic field directors and a target, such as a multipole magnet assembly configured as a ring magnet. The magnetic field concentrators have pairs of sections that are interdigitated and configured adjacent to magnetic field sensing elements of the magnetic field sensor. The magnetic field directors can each have a plurality of teeth, which can be interdigitated and adjacent or proximate to the target. The magnetic field directors can be configured to be mounted as a unit to a rotatable shaft while the target can be configured to be mounted to a different rotatable shaft. The magnetic field concentrators and magnetic field sensor can be fixed while the magnetic field directors and target can rotate with respect to each other about a twist axis.

A sensor device that can suppress deformation of a holder due to a molding pressure applied during injection molding of a housing is provided. A second magnetism collection portion holder has a suppression portion that projects from a second holder body portion toward a first holder and that suppresses deformation of the holder due to the molding pressure applied during the injection molding. The distal end surface of the suppression portion abuts against the inner surface of a first holder body portion with the first holder and a second holder assembled to each other with a sensor unit interposed therebetween.

A crank transmission having a crankshaft for connection to at least one foot or hand crank and at least one gear wheel driven by means of the crankshaft (5) is proposed. A coupling unit is provided between the crankshaft and the gear wheel. Under load, the coupling unit has at least temporarily an angular offset between a crank-side receiving region and an output region connected to the gear wheel for receiving and outputting the torque generated via the crank.