Abstract: Various embodiments include a method for monitoring the ventilation of a crankcase of an internal combustion engine with combustion chambers and a nitrogen oxide sensor arranged in an exhaust system, the sensor configured to detect an amount of nitrogen oxide in exhaust gas of the internal combustion engine. An example method includes: determining a predefined operating mode of the internal combustion engine defined by substantially no combustion of an air/fuel mixture taking place inside the combustion chambers; determining an amount of nitrogen oxide in the exhaust gas during the predefined operating mode of the internal combustion engine using the exhaust gas sensor; and identifying functional ventilation of the crankcase if the detected nitrogen oxide level exceeds a predefined nitrogen oxide threshold or identifying a malfunction if the detected nitrogen oxide level is below the predefined nitrogen oxide threshold.

Abstract: A method and a device for performing diagnostics on an exhaust gas sensor includes a series circuit of a Nernst cell and a first other cell. The exhaust gas sensor has a first, a second, and a third connection where a voltage drop can be measured between the first connection and the second connection by the Nernst cell and a voltage drop between the second connection and the third connection can be measured by the first other cell. The diagnostic method has steps for feeding a direct or alternating current into the first, second, and third connections; for directly or indirectly sensing an electrical voltage potential at at least one of the first, second, and third connections; and for evaluating the voltage potential sensed to diagnose a short circuit or an open circuit in the Nernst cell and/or in the first other cell.

Abstract: Various embodiments of the teachings herein include a method for noise reduction during operation of an electric motor. The method may include: determining an instantaneous rotational frequency of the electric motor from a signal representing a rotational position and/or a rotational speed of the electric motor; filtering a frequency component from the signal, the frequency component corresponding to the instantaneous rotational frequency of the electric motor multiplied by a specified factor greater than 1 and lying within a specified acoustic frequency range; and generating a correction signal based on the filtered signal and feeding this correction signal into the control loop so an amplitude of the interference signal is reduced.

Abstract: A circuit board assembly, which includes an insert, a printed circuit board (PCB), the insert connected to the PCB, at least one semiconductor device, a primary connection between the insert and the semiconductor device, and a secondary connection between the insert and the semiconductor device. The secondary connection provides electrical and thermal communication between the semiconductor device and the insert when the primary connection fails. The primary connection between the insert and the semiconductor device is a sintered connection. The insert and the semiconductor device are in electrical and thermal communication with one another through the sintered connection. The sintered connection includes a sintering compound which connects the insert and the semiconductor device. The secondary connection includes a limp-home function if the primary connection fails.

Abstract: A thermal management system for use in a vehicle in which the coolant flows of the two cooling circuits can be mixed with each other as needed by a multi-way valve at an interface between a first cooling circuit for a battery and a second cooling circuit for an electric motor for driving the vehicle. A vehicle with such a thermal management system is also proposed, as well as a method for operating two cooling circuits of such a thermal management system.

Abstract: Some embodiments of the teachings herein include methods for operating an exhaust gas sensor with a pump electrode, a measuring electrode, and a reference electrode. An example includes: discharging oxygen from the measuring cavity by applying a measurement current to the measuring electrode so a measurement voltage between the measuring electrode and the reference electrode is kept at a predetermined first setpoint value; discharging oxygen from the pump cavity by applying a pump current to the pump electrode so an electrode voltage between the pump electrode and the reference electrode is kept at a predetermined second setpoint value; determining a nitrogen oxide value based at least in part on a value of the measurement current; adapting the first setpoint value for the measurement voltage based on the determined nitrogen oxide value; and/or adapting the second setpoint value for the electrode voltage based on the determined nitrogen oxide value.

Abstract: The disclosure relates to a method for determining a size of a leak in a fuel tank system. The method includes: starting an internal combustion engine; calculating a stoppage time for a vehicle and/or a temperature difference between the fuel in the fuel tank system and the environment; and checking whether at least one of a plurality of diagnostic conditions is fulfilled. A first diagnostic condition is fulfilled when the stoppage time is longer than a predetermined minimum stoppage time. A second diagnostic condition is fulfilled when the temperature difference is smaller than a predetermined maximum temperature difference. Additionally, when at least one of the plurality of diagnostic conditions is fulfilled, the method includes: evacuating the fuel tank system; recording a time profile of the pressure in the fuel tank system; and determining the size of a leak based on the recorded time profile of the pressure.

Abstract: The disclosure relates to a method for distributing torque in the event of a load change for a motor vehicle. The motor vehicle has a first torque source that provide a first torque, and a traction motor that provides second torque. After determining that the torque distribution should be changed, the first torque is reduced, with a first gradient, from the positive torque range to a torque neutrality. At a specified load change time before the torque neutrality of the first torque is reached, the second torque of the traction motor is adjusted into the negative torque range with a specified second gradient until a predetermined load change range of the traction motor has been traversed. After the load change range has been traversed, the second torque is taken further into the negative torque range with a third gradient. The third gradient being steeper than the second gradient.

Abstract: The disclosure relates to a circuit breaker unit having a circuit breaker for connection of at least two electrical networks. The circuit breaker unit has a control unit for monitoring voltages of the networks and/or at least one current through the circuit breaker. In the event of one of the fault scenarios, overvoltage or undervoltage in one of the networks or overcurrent across the circuit breaker, the controller separates the two networks from one another. The circuit breaker includes at least one controllable first resistor, a controllable second resistor, and a controllable third resistor. The control unit is configured, in the event of a fault scenario in one of the networks, to adjust the values of the resistors so that the networks are separated from one another and so that the voltage in the fault-free network remains within predefined limits.

Abstract: A thermal management system for a vehicle and a vehicle having a thermal management system, the thermal management system having a first coolant circuit for a battery and a second coolant circuit for an electric motor for driving the vehicle. The two coolant circuits can be operated in series or in parallel by a multi-way valve. The thermal management system further includes an oil cooling circuit for additionally cooling the electric motor, wherein the oil cooling circuit is thermally connected to the second coolant circuit via a heat exchanger.

Abstract: A thermal management system for a vehicle has: a cooling medium circuit with a cooling medium pump for delivering a cooling medium in the cooling medium circuit for cooling a brake and/or a component of an electric drive motor of the vehicle and/or a transmission, a heating medium circuit with at least one heating medium pump for delivering a heating medium in the heating medium circuit for cooling and/or heating a battery and/or power electronics and/or a charging device and/or another component of the electric drive motor of the vehicle and/or an interior of the vehicle, and a heat transfer device for exchanging heat between the cooling medium in the cooling medium circuit and the heating medium in the heating medium circuit.

Abstract: An inductive position sensor includes a primary winding, a first secondary winding, and a second secondary winding superimposed on the first secondary winding, wherein each turn comprises two turn segments referred to as transverse segments, each oriented substantially perpendicular to a longitudinal axis, and at least two segments referred to as longitudinal segments arranged each time between two transverse segments, and the transverse segments are irregularly distributed along the longitudinal axis. An area of the sensor having along the longitudinal axis a density of transverse segments substantially higher than the density of segments outside of the area.

Abstract: A thermal management system has a cooling medium circuit for cooling a brake of the vehicle, a heating medium circuit for cooling and/or heating one more of a battery, power electronics, a charging device, a component of an electric drive motor, or an interior of the vehicle. Also included is a heat transfer device for exchanging heat between the cooling medium circuit and the heating medium circuit, a coupling/decoupling unit, which couples a rotation of a rotor of the electric drive motor and a rotation of a drive wheel of the vehicle in a coupling position and decouples the rotor and the drive wheel in a decoupling position, and a control unit, which, when the vehicle is stationary, causes the coupling/decoupling unit to be in the decoupling position, such that the electric drive motor rotates the rotor and causes the brake to brake the rotation of the rotor.

Abstract: A current feed-through for an electrically heatable catalytic converter, wherein the catalytic converter has in the interior thereof at least one electrical conductor, which is electrically contactable by the current feed-through, having a central electrically conductive element, which is guided from the interior of the catalytic converter through the outer housing wall thereof, having an electrical insulation layer, which surrounds the electrically conductive element on its radial outer face, and having a metallic sleeve, in which the electrically conductive element and the electrical insulation layer is received, wherein at the current feed-through or directly adjacently to the current feed-through there is arranged a device for reducing the heat conduction from the interior of the catalytic converter along the current feed-through to a contact face arranged outside the catalytic converter.

Abstract: A plug-in connector device has a printed circuit board element, a first plug-in connector element which is electrically and mechanically connected to the printed circuit board element by a soldered connection, and a second plug-in connector element which is electrically and mechanically connected to the printed circuit board element by electrical press-in contacts. The second plug-in connector element has a housing section with a recess in which the first plug-in connector element is arranged in such a way that outer surfaces of the first plug-in connector element make contact with inner surfaces of the recess.

Abstract: A device for exhaust-gas aftertreatment, such as an annular catalytic converter, having a first, tubular flow path, having a diverting chamber and having a second, annular flow path, wherein the tubular flow path is delimited outwardly in the radial direction by an inner pipe and the second, annular flow path is delimited inwardly in the radial direction by the inner pipe and outwardly in the radial direction by an outer pipe, and the diverting chamber is designed to divert the exhaust-gas flow from the tubular flow path (8) into the annular flow path, wherein the annular catalytic converter has at least one annular substrate body which has a catalytically active coating applied to it and which is arranged in the annular flow path.

Abstract: Various embodiments of the teachings herein include a method for detecting manipulation of a sensor including a measuring unit to measure a physical property and a control unit connected to the measuring unit to receive measurement signals from the measuring unit and to send control signals to the measuring unit. The method may include: sending a predetermined diagnostic signal to the measuring unit using the control unit; receiving a response signal generated by the measuring unit in response to the predetermined diagnostic signal; and identifying manipulation of the sensor unit if the response signal received deviates from a predetermined reference signal by more than a threshold value.

Abstract: A power semiconductor component includes at least one power semiconductor device disposed within a housing and a heat sink having an area a exposed on a first surface of the housing. A wiring substrate has a first main surface and a second main surface. A heat dissipation region with increased thermal conductivity is disposed on the second main surface. The heat dissipation region has an area A on the second main surface, and a<A. The housing with the power semiconductor device is disposed on the second main surface of the wiring substrate in such a way that the heat sink is disposed completely on the heat dissipation region and is connected thereto by way of a solder layer. A method for producing a power semiconductor component is also provided.

Abstract: Various embodiments of the teachings herein include a water separation device for a fuel cell. An example includes: a separator for separating water from an aqueous gas mixture discharged from the fuel cell; a container defining a collection volume to collect the water from the separator; and a freeze protector including a displaceable valve coupled to the collection volume. When the water in the collection volume freezes, the valve moves in the direction of a freeze position enlarging the collection volume. When frozen water in the collection volume melts, the valve moves back in the direction of a melt position reducing the collection volume.

Abstract: A distribution device including: —a housing having an inlet port and a plurality of outlet ports and—an electromotively drivable, rotatably adjustable distributor which is arranged in the housing in the form of a disk on which liquid-receiving and liquid-guiding means are formed. The distributor disk is rotatably adjustable into defined positions relative to the housing here. The liquid-receiving and liquid-guiding means here include an end-face radial groove which directs the liquid to the desired locations in the distribution device. In this case, the distribution device additionally has a sensor arrangement for determining the position of the radial groove, wherein the sensor arrangement has a signal transducer which is fixed in position with respect to the housing and a metallic counterpart element which is fixed in position with respect to the distributor disk and interacts with the signal transducer.