Abstract: A variable-speed gear arrangement for a vehicle includes a harmonic drive device, a driven wheel and an optional stop disk. The stop disk can be arranged between the driven wheel and a shaft, with a fastener for connecting the shaft to the stop disk and the driven wheel. The fastener presses the shaft, the stop disk and the driven wheel together in an axial direction. The driven wheel and/or the shaft and/or the stop disk includes a deformation section, and the deformation section includes a contact surface and a deformation surface. In a first state of assembly, the deformation section brings a member of the clamping connection into contact with the contact surface, simultaneously forming a free deformation region. In a second state of assembly, the contact surface and the deformation surface are applied to the member of the clamping connection in a flat manner.

Abstract: A controller includes a voltage sensing circuit configured to detect a voltage variation across a capacitor of a power converter, and a control circuit configured to calculate a current flowing through an inductor of the power converter based on the voltage variation across the capacitor of the power converter.

Abstract: A roller tappet for a fuel pump is provided that has a guide housing which includes a drive-side and output-side section of the same external diameter, and a separate support body extending longitudinally through the guide housing. An upper face on the drive-side section carries a pin with a roller thereon. A lower face of the output-side section interacts at least indirectly with an arrangement for a pump piston. The guide housing includes a drive-side section and an output side section that are separate, axially spaced rings connected to one another via the support body. The support body has a first ring area with the upper face and a second ring area with the lower face. The first ring area is connected to an inner jacket of the drive-side section and the second ring area is connected to an inner jacket of the output-side section.

Abstract: A hybrid module includes a hybrid module housing which forms a housing interior divided by a partition. The housing interior includes at least one chamber designed as a dry space which is separated from a wet region by the partition, wherein the hybrid module has an electric machine and a first clutch device, in particular a separating clutch, in the dry space and has a second clutch device, in particular a dual clutch apparatus, in the wet region. An output side of the first clutch device is mechanically coupled to the input side of the second clutch device by an intermediate shaft, wherein the intermediate shaft is supported at least radially on the partition via at least one bearing unit.

Abstract: A method includes determining, by a first radio transceiver of an access-restricted environment, of first direction information of a first radio signal transmitted between the first radio transceiver and a wireless device. The method further includes determining, by a second radio transceiver of the access-restricted environment, of second direction information of a second radio signal transmitted between the second radio transceiver and the wireless device. The method further includes receiving, by the access-restricted environment, of angle information determined by an electronic key associated with the access-restricted environment. The method further includes determining, based on the first direction information, the second direction information and the angle information, whether the wireless device is a relay device or the electronic key. The method can be based, for example, on a Bluetooth technology.

Abstract: A sensor device includes a sensor which is configured to detect a physical quantity generated by an impact event and to generate first measurement data based on the impact event. The sensor device also includes a MEMS microphone configured to detect sound waves generated by the impact event and to generate second measurement data based on the impact event. The sensor device is configured to provide the first measurement data and the second measurement data to a logic unit. The logic unit is configured to detect the impact event based on a combination of the first measurement data and the second measurement data.

Abstract: A braking system having a rotating element that rotates about an axis, and a braking device for braking the rotating element. The braking device has a first braking element that is movable between a rest position and a braking position and has an annular braking surface which is arranged concentrically with respect to the axis and has a brake disc which is co-rotationally connected to the rotating element and has first and second frictional surfaces. The annular braking surface of the first braking element is arranged at a distance from the brake disc in the rest position, and is in contact with the first frictional surface thereof in the braking position. A second braking element is arranged such that in the braking position the first braking element presses the brake disc against the second braking element such that the second braking element is in contact with the second frictional surface.

Abstract: A sensor device includes a first sensor element that generates a first sensor signal based on a varying magnetic field; a second sensor element that generates a second sensor signal based on the varying magnetic field; a signal processing circuit configured to generate a first pulsed signal based on the first sensor signal and generate a second pulsed signal based on the second sensor signal; a fault detector that detects a fault and generates an error signal indicating the fault; and an output generator that receives the error signal based on a first condition that the fault detector detects the fault, and simultaneously outputs a first output signal and a second output signal. In response to the first condition being satisfied, the output generator maintains the first output signal in a steady state and outputs the second pulsed signal as the second output signal.

Abstract: A method for producing a multi-layered wet friction material includes providing a bottom layer, providing a top layer produced independently of the bottom layer from different materials, and bonding the bottom layer to the top layer. The bottom layer and the top layer may be produced from different formulations and supplied as raw papers. A formulation of the top layer may include twenty to sixty percent (20%-60%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, and twenty-five to thirty-five percent (25%-35%) phenolic resin. A formulation of the bottom layer may include ten to fifty percent (10%-50%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, five to fifteen percent (5%-15%) carbon, and twenty-five to thirty-five percent (25%-35%) phenolic resin.

Abstract: A device may include a test signal generator and a receive antenna input. The device may include a switchable impedance matching circuit, coupled to the test signal generator and to a receive chain, to cause an impedance matching between the test signal generator and a component of the receive chain to be increased during a monitoring phase. The impedance matching during the monitoring phase enables one or more measurements based on a test signal generated by the test signal generator. The switchable impedance matching circuit may cause a partial impedance mismatching between the test signal generator and the component of the receive chain during a verification phase associated with verifying a return of the switchable impedance matching circuit to an impedance matching caused during the operational phase. The device may include a control circuit to verify operation of the returning of the switchable impedance matching circuit in the verification phase.

Abstract: The disclosure relates to a method for detecting belt slip of a belt drive driving a generator of an internal combustion engine, said belt drive having a belt tensioner that can be adjusted in operation and adjusts the pre-tensioning force of the belt according to the detected belt slip. According to said method, the rotational speed profile of the crankshaft is recorded during an angular window of the crankshaft of m·360 degrees and an average value of the crankshaft rotational speed is formed from said rotational speed profile; temporally independently from the recording of the rotational speed profile of the crankshaft, the rotational speed course of the generator shaft is recorded during an angular window of the generator shaft of n·u?1·360 degrees and an average value of the generator shaft rotational speed is formed from said rotational speed profile.

Abstract: A rotor for an electrical machine includes a rotor body and an axis of revolution which extends in an axial direction and about which the rotor body is rotatable. The rotor further includes an outer casing surface which delimits the rotor body, at least one pole arrangement, and a movement mechanism for the at least one pole arrangement. The movement mechanism is designed such that the at least one pole arrangement is movable about a rotation axis which is oriented substantially parallel to the axis of revolution of the rotor. The at least one pole arrangement is also movable about the rotation axis in addition to rotation about the axis of revolution of the rotor.

Abstract: Voltage supply circuitry includes a high-side pin and a low-side pin configured to couple to a storage element and an output pin. The voltage supply further includes a high-side switching element configured to electrically couple the positive supply pin and the low-side pin based on a high-side control signal and a low-side switching element configured to electrically couple the reference supply pin and the low-side pin based on a low-side control signal. The voltage supply further including driver circuitry configured to generate the high-side control signal and the low-side control signal for operating in a charge pump mode when the storage element is arranged in a charge pump configuration with the voltage supply circuitry and to generate the high-side control signal and the low-side control signal for operating in a boost converter mode when the storage element is arranged in a boost converter configuration with the voltage supply circuitry.

Abstract: A method for manufacturing an opening structure is provided. The method may include: forming a patterned mask over a first side of a carrier; forming material over the first side of the carrier covering at least a portion of the carrier; forming a first opening in the carrier from a second side of the carrier opposite the first side of the carrier to at least partially expose a surface of the patterned mask; and forming a second opening in the material from the second side of the carrier using the patterned mask as a mask.

Abstract: One or more embodiments are related to a semiconductor device, comprising: a metallization layer comprising a plurality of portions, each of the portions having a different thickness. The metallization layer may be a final metal layer.

Abstract: A pump, comprising a rotor axially located between a fluid inlet section and a fluid outlet section, wherein the rotor is configured to rotate about a center axis, a stator surrounding the rotor, wherein the stator includes an inner diameter surface and an outer diameter surface, wherein the inner diameter surface includes a groove surrounding the stator and concentric about the center axis, and a ring surrounding the stator, wherein the ring is adjacent to the groove and defines a gap between an outer diameter of the surface and an inner surface of the ring, wherein the ring includes a ring mass and the stator includes a stator mass, and the ring mass is substantially equal to the stator mass.

Abstract: A method for a single-fault-tolerant determination of an isolation resistance of a photovoltaic system including an inverter and a solar generator connected thereto is disclosed. The isolation resistance is determined as a function of a test voltage drop in a resistor network, wherein the resistor network is connected to a variable voltage source by way of a first terminal, to a first pole of the solar generator by way of a second terminal and to a ground terminal of the inverter via an isolation relay by way of a third terminal. A capacitor is disposed between the ground terminal and the first pole of the solar generator.

Abstract: A yarn deflection unit for a textile machine, having a housing comprising a curved wall section for forming a radially outer wall section of a curved yarn deflection channel. The solution proposed by the invention is distinguished in that the curved wall section has a yarn guiding groove extending along the curvature for receiving and guiding a yarn.

Abstract: A radar system includes a signal generator configured to generate an RF signal; a modulator configured to generate an RF test signal by modulating the RF signal with a test signal; a transmitting channel configured to generate an RF output signal based on the RF signal; and a receiving channel configured to receive an antenna signal and the RF test signal and down-convert a superposition of the two signals to baseband by means of a mixer in order to obtain a baseband signal. The radar system further includes an analog-to-digital converter configured to generate a digital radar signal based on the baseband signal, and a computing unit configured to filter the digital radar signal by means of a digital filter, wherein the filter characteristic of the digital filter has a pass band, a transition band, and a stop band. The test signal has a frequency in the transition band.

Abstract: A hybrid module for the transmission of torque in a drive train of a vehicle having a transmission. The hybrid module received in a housing has a first electric motor, a first clutch, which can be actuated by a first clutch actuation unit, and has a first multiple clutch disc assembly, first clutch input and first clutch output, and a bulkhead fastened to the housing. The bulkhead is arranged axially between the first clutch and the transmission and can be releasably connected to the housing. A transmission unit in a drive train of a vehicle having such a hybrid module and at least one first brake of a transmission, wherein the first brake is a first support element fixed to the housing and has a first rotary element which can be braked by the first brake. The first support element is connected in a rotationally fixed manner to or configured in one piece from the bulkhead.