Abstract: An inductive linear displacement sensor arrangement includes a movable coupling device coupled to a movable body, an electrically conductive coupling element, and a stationary circuit carrier. The circuit carrier includes an excitation structure and a receiving structure, which extend along a displacement path of the coupling device. An evaluation and control unit is designed to evaluate a measurement signal induced in the receiving structure and to determine the current position of the coupling device and of the body. The coupling device comprises a slider on which the electrically conductive coupling element is arranged. The slider is mounted for sliding movement in a plane of displacement via the path of displacement of the coupling device on two parallel guide elements, one of which guides the slider of the coupling device along the displacement path, and another of which is a sliding guide which prevents the slider from tilting and/or twisting.

Abstract: A motor assembly includes a rotor and a sensor arrangement. The sensor arrangement has a sensor and a target. The target is applied to a surface of the rotor and the sensor is mounted on a bearing shield of the motor opposite the target.

Abstract: An electrically controllable component assembly and an electronically slip-controllable brake system having such a component assembly. The component assembly has an electric machine including a rotor, a machine shaft connected to a rotor in a torsionally fixed manner, and a signal transducer, revolving with the rotor, of a sensor device for the electronic sensing and evaluation of the angle of rotation of the machine shaft. The signal transducer has first regions and second regions, which are situated in mutual alternation in sequence in the circumferential direction of the signal transducer and differ from one another in their respective electrical conductivity. The signal transducer includes a shaped sheet metal part, which rests in a flush manner against the rotor and is anchored in a torsionally fixed manner to the machine shaft.

Abstract: The disclosure relates to a sensor assembly, having a housing, which has a cylindrical depression with a lateral wall which is closed in the circumferential direction of the depression, and having a cover which is assigned to the depression and bears at least one sensor unit, the cover having a cylindrical insertion portion which is partially inserted axially into the depression so that it is radially opposite the lateral wall at least in some regions, and the insertion portion being held axially in the depression by means of an interlocking connection. According to the disclosure, the interlocking connection has an elastically deformable C-ring, which is arranged coaxially with the insertion portion and is held axially between a first axial stop of the insertion portion on one side and a second axial stop of the lateral wall on the other side.

Abstract: An inductive rotor position sensor device for detecting a rotor angular position of a rotor of an electric machine. The inductive rotor position sensor device includes a transmitter coil for generating electromagnetic waves and a receiver coil for detecting the electromagnetic waves generated by the transmitter coil and influenced by the rotor, and includes a processing unit, which is designed to activate the transmitter coil and to evaluate the electromagnetic waves detected by the receiver coil for determining the rotor angular position. The coils and the processing unit are situated on a shared circuit board. The coils are situated on a front side, and the processing unit is situated on a rear side of the circuit board which faces away from the front side.

Abstract: A sensor arrangement, including a detection unit and a carrier element for attaching the detection unit at a motor cover, The detection unit, on a side facing the motor cover, including electronic components which are accommodated in a receptacle of the carrier element. A motor including a motor cover and a corresponding sensor arrangement are also described.

Abstract: A drive device for a braking device of a motor vehicle. The drive device includes an electric machine that includes a housing and a rotor that is rotatably supported in the housing, and a rotor position sensor device that includes a circuit board with at least one sensor element that is associated with the rotor. The circuit board has a circular disk-shaped design and is situated coaxially with respect to a rotational axis of the rotor. The circuit board is fastened in or at the electric machine via at least one detent connection.

Abstract: A motor assembly includes a rotor and a sensor arrangement. The sensor arrangement has a sensor and a target. The target is applied to a surface of the rotor and the sensor is mounted on a bearing shield of the motor opposite the target.

Abstract: A brushless electrical machine, in particular a brushless direct current motor, includes a housing, a shaft rotatably mounted in the housing, at least one rotor mounted on the shaft, a stator fixed to the housing, and a rotor position-detecting device. The rotor position-detecting device operates in a contactless manner and is associated with the rotor. The rotor position-detecting device has a multipole magnet ring rotationally fixed on the shaft and at least one sensor which is sensitive to magnetic fields and which is radially associated with the outer periphery of the magnet ring.

Abstract: For a set-up for measuring a rotational speed of a turbocharger of a motor vehicle, including at least one antenna for generating and/or receiving electromagnetic radiation and an electronic module having at least one electric and/or electronic component and being electrically connected to the antenna. The set-up further includes a housing shell made at least partially of laser-absorbing material and having an inner chamber, and a housing cover, which rests on at least one laser-absorbing contact surface of the housing shell and covers the inner chamber of the housing shell at least partially, and at least sections of which are made of material transparent to laser radiation; the antenna and the electronic module being situated in the inner chamber of the housing shell, and at least sections of the housing cover being welded to the housing shell at the at least one contact surface using a laser-welded seam.

Abstract: In a method for monitoring a rotation of a compressor wheel of an exhaust-gas turbocharger, which compressor wheel has on the peripheral side a number n of blades, an inductive sensor is provided for detecting the speed or rotational frequency, which sensor produces at least one output signal as a function of eddy currents generated as the blades pass by, and the rotational speed of the compressor wheel is inferred from a fundamental frequency of the output signal. In addition, information about a fault of the compressor wheel is derived from at least one modulation of the output signal, e.g., amplitude modulation, and an imbalance of the compressor wheel is detected.

Abstract: A sensor device is described for the contactless acquisition of a rotatable object, in particular for acquiring a rotational speed of a compressor wheel of a turbocharger. The sensor device includes a sensor housing. The sensor device also includes at least one magnetic-field generator for generating a magnetic field at the location of the rotatable object, and at least one magnetic-field sensor for detecting a magnetic field generated by eddy currents of the rotatable object. The sensor device furthermore includes at least one connection element, the connection element being set up to connect the sensor device to a device that includes the rotatable object, especially a turbocharger, so that the magnetic-field generator and the magnetic-field sensor are at least partially disposed together in a sensor section of the sensor housing, and the sensor housing is at least regionally set apart from the device that includes the rotatable object.

Abstract: For a set-up for measuring a rotational speed of a turbocharger of a motor vehicle, including at least one antenna for generating and/or receiving electromagnetic radiation and an electronic module having at least one electric and/or electronic component and being electrically connected to the antenna. The set-up further includes a housing shell made at least partially of laser-absorbing material and having an inner chamber, and a housing cover, which rests on at least one laser-absorbing contact surface of the housing shell and covers the inner chamber of the housing shell at least partially, and at least sections of which are made of material transparent to laser radiation; the antenna and the electronic module being situated in the inner chamber of the housing shell, and at least sections of the housing cover being welded to the housing shell at the at least one contact surface using a laser-welded seam.

Abstract: An electrical contact system is provided for contacting a coil, in particular a coil of a rotational speed sensor, having: a holding body, the holding body being electrically insulated, a line segment, at least one electrical line, the electrical line being surrounded by an electrical insulating layer, at least one spring element, the at least one spring element being electrically conductive, the at least one spring element having at least one opening, the at least one opening forming a cutting edge in at least some regions of its edge, the at least one spring element being pressed with the at least one cutting edge against the line segment in such a way that the at least one cutting edge pierces through the electrical insulating layer and an electrical contact is produced between the at least one spring element and the at least one line segment.

Abstract: In a method for monitoring a rotation of a compressor wheel of an exhaust-gas turbocharger, which compressor wheel has on the peripheral side a number n of blades, an inductive sensor is provided for detecting the speed or rotational frequency, which sensor produces at least one output signal as a function of eddy currents generated as the blades pass by, and the rotational speed of the compressor wheel is inferred from a fundamental frequency of the output signal. In addition, information about a fault of the compressor wheel is derived from at least one modulation of the output signal, e.g., amplitude modulation, and an imbalance of the compressor wheel is detected.

Abstract: An electrical contact system is provided for contacting a coil, in particular a coil of a rotational speed sensor, having: a holding body, the holding body being electrically insulated, a line segment, at least one electrical line, the electrical line being surrounded by an electrical insulating layer, at least one spring element, the at least one spring element being electrically conductive, the at least one spring element having at least one opening, the at least one opening forming a cutting edge in at least some regions of its edge, the at least one spring element being pressed with the at least one cutting edge against the line segment in such a way that the at least one cutting edge pierces through the electrical insulating layer and an electrical contact is produced between the at least one spring element and the at least one line segment.

Abstract: A sensor device for acquiring at least one rotational property of a rotating element, particularly a rotational speed of a compressor wheel of an exhaust-gas turbocharger, includes at least one magnetic field generator for generating a magnetic field at the location of the rotating element, at least one magnetic sensor, e.g., a coil, for acquiring a magnetic field generated by eddy currents of the rotating element, and at least one pole pin. The pole pin is elongated at its end facing the rotating element and includes a section that is not enclosed by the magnetic sensor. The sensor can be installed as a plug sensor in a blind-end bore in the housing of the exhaust-gas turbocharger.

Abstract: A sensor device is described for the contactless acquisition of a rotatable object, in particular for acquiring a rotational speed of a compressor wheel of a turbocharger. The sensor device includes a sensor housing. The sensor device also includes at least one magnetic-field generator for generating a magnetic field at the location of the rotatable object, and at least one magnetic-field sensor for detecting a magnetic field generated by eddy currents of the rotatable object. The sensor device furthermore includes at least one connection element, the connection element being set up to connect the sensor device to a device that includes the rotatable object, especially a turbocharger, so that the magnetic-field generator and the magnetic-field sensor are at least partially disposed together in a sensor section of the sensor housing, and the sensor housing is at least regionally set apart from the device that includes the rotatable object.

Abstract: A sensor device is described for the contactless acquisition of at least one rotation characteristic of a rotatable object, in particular for acquiring a rotational speed of a compressor wheel of a turbocharger, and includes at least one sensor element. The sensor device also includes at least one magnetic-field generator for generating a magnetic field at the location of the rotatable object, and at least one magnetic-field sensor for detecting a magnetic field generated by eddy currents of the rotatable object. Moreover, the sensor device includes at least one temperature sensor. The magnetic-field generator and the magnetic-field sensor are jointly and at least partially disposed in a sensor section of the sensor housing. The temperature sensor is at least partially situated in the sensor section.

Abstract: An ignition coil for an Otto engine for an high-voltage winding has a conductive, laminar component, which is at a specified distance from the high-voltage winding and which is electrically connected to a terminal of the ignition coil. In a method for the capacitive coupling of the high-voltage winding of an ignition coil for diagnostic purposes, a conductive, laminar component of the ignition coil, which is at a specified distance from the high-voltage winding and which is electrically connected to a terminal of the ignition coil, is used as a capacitive coupling element.