Abstract: A method for electronically diagnosing an electric drive chain for an electric or hybrid motor vehicle. The drive chain including an electric battery, an electric machine, an inverter connected between the battery and the electric machine, and a link capacitor connected in parallel between the battery and the inverter. The diagnosis method includes: i) continuously controlling the increase in the control frequency of the electric machine; ii) determining the variation in the Fourier transform of the current variation between the assembly comprising the battery and the link capacitor and between the inverter; iii) for each control frequency: 1) detecting an anomaly; 2) otherwise, determining when the control frequency value is optimal.

Abstract: Embodiments of the teachings herein include a device for closing a vehicle flap. An example device may include: a device to open and close the flap; a first sensor to detect a target movement of a body part in the vicinity and to provide an activation signal indicating a desired opening or closing movement of the vehicle flap; a second sensor to detect movements of the vehicle and to generate a movement signal indicating movement of the vehicle; and a control unit to receive the activation signal and the movement signal, and to actuate the opening and closing device. The control unit actuates the opening and closing device for the desired closing of the vehicle flap when an activation signal of the first sensor has been received and the movement signal of the second sensor indicates a movement of the vehicle smaller than a predetermined movement threshold value.

Abstract: A vehicle energy transmission circuit is equipped with an insulation fault detection circuit that has a fault current measurement apparatus, a first high-voltage connector, a second high-voltage connector, a ground potential connector, a first measuring resistor, a second measuring resistor and a measuring switch. One of the high-voltage connectors is connected in series with a connecting point via one of the measuring resistors and the measuring switch. The measuring resistor connects the other high-voltage connector directly to the connecting point. The connecting point is connected to the ground potential connector via the fault current measurement apparatus. The fault current measurement apparatus is configured to record a current that flows between the connecting point and the ground potential connector. The fault current measurement apparatus is configured to record this current when the measuring switch is open and closed.

Abstract: A rotor shaft arrangement for an electric motor or for an electrodynamic machine. The rotor shaft arrangement has a rotor shaft, and a fluid passage, which is arranged at least partially within the rotor shaft and is designed to carry a cooling fluid along a longitudinal extent direction of the fluid passage. The rotor shaft arrangement furthermore has at least one feed channel, which is arranged at least partially within the rotor shaft and is connected to the fluid passage at one end of the fluid passage. The at least one feed channel is configured and/or designed to produce fluid communication between the fluid passage and a fluid feed that stores the cooling fluid, wherein the feed channel is arranged with respect to the longitudinal extent direction of the fluid passage so as to form a bend at the end of the fluid passage.

Abstract: A catalytic converter for aftertreatment of combustion gases from an internal combustion engine, having at least one catalyst and at least one electrically heatable heating disk. The catalyst and the heating disk are each formed by a honeycomb having a multitude of flow channels through which flow is possible in a main flow direction. The mechanical connection between the catalyst and the heating disk is formed by at least one support pin (having an inner core. The support pin has a thickening in each of the two end regions and, the core is formed by a ceramic material and the thickening is formed by a ceramic-metal mixture.

Abstract: A fluid-conveying device for conveying a fluid, such as in particular water, from a tank. The fluid can be conveyed along a dosing line to an injection point by a pump, wherein the dosing line is attached at a pressure side of the pump by a connection plug which is attached to an outlet line. The fluid-conveying device has at least one first valve, which is preloaded by a spring and which is configured to prevent a fluid flow from the dosing line to the outlet line and which is furthermore configured to permit the fluid flow from the outlet line to the dosing line if a predefined minimum pressure p1 is reached on that side of the first valve which faces toward the outlet opening.

Abstract: A method for operating an electric motor that drives a displacement pump stage to deliver a liquid through a hydraulic system to supply the liquid to at least one consumer. A periodically repeating pressure fluctuation of the liquid that occurs during delivery operation is at least partially compensated by virtue of the rotational speed of the electric motor being manipulated in accordance with the periodically repeating pressure fluctuation.

Abstract: A device for aftertreatment of exhaust gases from an engine, with a honeycomb body through which a flow passes along a main flow direction, a ceramic mat, and a first casing that receives the honeycomb body. The ceramic mat is arranged between the honeycomb body and the casing and surrounds the honeycomb body as a ring in peripheral direction. The ceramic mat is configured such that the cavity formed between the honeycomb body and the first casing is filled by the ceramic mat. A method for manufacturing the device, wherein the honeycomb body is received in a second casing and the honeycomb body received in the second casing is surrounded by the ceramic mat as a ring in the peripheral direction. The second casing has, at the end region facing the gas inlet side, a portion having a structure different than the remaining structure of the second casing.

Abstract: Disclosed is a method for heating liquid in a tank, including: providing at least one heating element of PTC type; providing a pulse width modulation regulator; measuring parameters including the temperature of the liquid and the voltage applied across the terminals of each heating element; heating the liquid without regulation, insofar as the temperature of the liquid is below a first threshold temperature; applying pulse width modulation regulation to the electrical supply to each heating element for which the supply voltage exceeds a predetermined threshold insofar as a measured temperature is above a second threshold temperature determined as a function of measured parameters; and determining a duty cycle for the modulation of the electrical supply to each heating element and transitioning progressively from a duty cycle of 1 to the determined duty cycle.

Abstract: An arrangement for pressure monitoring within a battery housing of a battery system. The arrangement includes a first power supply path and a pressure measuring. The pressure measuring unit is electrically connected to the first power supply path. The arrangement also includes a pressure-sensitive mechanical switching unit arranged within the battery housing and electrically connected, in series with the pressure measuring unit, to the first power supply path. The switching unit switches to an electrically conductive switching state when the pressure within the battery housing exceeds a predefined pressure threshold and establishes a supply of power to the pressure measuring unit via the first power supply path, and switches to an electrically blocking switching state when the pressure within the battery housing falls below the pressure threshold and interrupts the supply of power to the pressure measuring unit via the first power supply path.

Abstract: Disclosed is a method of managing data exchanges between a plurality of tasks by a computer of a vehicle, in particular a motor vehicle, the method including a phase of grouping functions into sets, each set including data-producing functions and consuming functions. For each set of functions, a first phase includes the steps of executing the producing functions in order to produce what are referred to as “produced” data, and of storing a copy of each produced datum, and a second phase includes the steps of restoring the data to be consumed by the consuming functions, on the basis of the stored copies, and of executing the consuming functions on the basis of the restored data to be consumed.

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 circuit carrier for at least one electrical component, including: a metal substrate layer, a first electrical insulation layer arranged on the metal substrate layer, a second electrical insulation layer arranged on the first insulation layer, and an electrically conductive layer, arranged on the second electrical insulation layer, having at least one conductor track for electrically connecting the at least one electrical component, wherein at least one of the two electrical insulation layers is colored in such a way that the two electrical insulation layers have different colors.

Abstract: Disclosed is a method for diagnosing a speed/position sensor of an internal combustion engine, of the type including a toothed wheel, which rotates as one with a shaft, and a matter detector, which is arranged so as to be fixed opposite the toothed wheel and controls a base of a transistor. The method includes: detecting a short circuit between an output of the speed/position sensor and a power supply; and testing for excess current consumption by a power supply of the speed/position sensor when the transistor is activated. If the test is positive, the short circuit is identified between the power supply of the speed/position sensor and the output of the speed/position sensor. Alternatively, if the test is negative, the short circuit is identified between another power supply and the output of the speed/position sensor.

Abstract: Various teachings of the present disclosure include a method for operating an electric motor of rotor-stator-rotor configuration and a first gap with a first thickness d1 between a first rotor and a stator and a second gap with a second thickness d2 between the stator and a second rotor, wherein the first rotor and the second rotor are electrically excitable separately from each other. An example includes: detecting a first open-circuit voltage of the first rotor; detecting a second open-circuit voltage of the second rotor; classifying the first open-circuit voltage and the second open-circuit voltage; and adjusting the electrical excitation of at least one from amongst the first rotor and the second rotor based on at least one of the classified open-circuit voltages.

Abstract: Disclosed is a method for opening an opening element of a motor vehicle having a device detecting a predetermined movement of a user's body part, including a Doppler radar, including an antenna, radar waves transmitter/receiver and a radar wave processor. The method includes detection modes and standby modes with reduced wave frequency, the method including during standby: Phase demodulating the reflected radar waves and determining a first signal representing a phase variation of the reflected waves over time; Phase-shift demodulating the reflected radar waves, and determining a second signal representing phase variation of the reflected waves shifted as a function of time; Comparing threshold to maximum value of the absolute values for the first and second signals; Exiting the standby mode and triggering the detection mode if the maximum is greater than the predetermined threshold; Opening the opening element if the predetermined movement is detected during the detection mode.

Abstract: An electrically heatable catalytic converter with a metal honeycomb body, the honeycomb body being formed by a plurality of wound metal foils and the honeycomb body being received in a casing tube, a device for electrically contacting at least individual foils being led into the casing tube through an opening in the casing tube, the device being formed by an electrode which is electrically insulated from the inside of the casing tube by a connecting layer and mechanically connected to the casing tube.

Abstract: Various embodiments of the teachings herein include a system for a vehicle having a vehicle body and a vehicle door held pivotably on the vehicle body. An example system includes: an anti-trap protection device to detect a trapping event occurring between the vehicle door and the vehicle body; and an obstacle identification system to detect a collision event occurring between the vehicle door and an object in surroundings of the vehicle. At least one sensor operates both for detection of the trapping event and for detection of the collision event.

Abstract: A method for supplying power to an inductive load (12) using an H-bridge (2) power supply structure, comprising a first block B1 of steps for detecting an anomaly using a “DIAG ON” diagnostic method, a second block B2 of steps for detecting an anomaly using a “DIAG OFF” diagnostic method, and finally a third block B3 of steps for discriminating the detected anomaly and for confirming a short circuit at the inductive load (12) anomaly.

Abstract: A thermal management system having a battery and an electric motor, the temperature of both of which is to be controlled, wherein the electric motor is oil-cooled. The thermal management system has a monitoring system for monitoring an oil flow generated by an oil pump, in an oil cooling circuit including the electric motor. The monitoring system in this case has a first pressure sensor at a first point of the oil cooling circuit and a second pressure sensor at a second point of the oil cooling circuit and/or a speed sensor assigned to the oil pump. Also proposed is a vehicle having a thermal management system of this type.