Abstract: The invention relates to an inverter circuit for the alternating connection of the phases of a three-phase load to a DC source, having pairs of electronic switches connected in parallel with one The two switches of each pair are connected in series, and wherein the connection for the respective phase of the load is provided at the connection of the two electronic switches belonging to the pair. An intermediate circuit capacitor is connected in parallel to the DC source. Electric connections are provided between the intermediate circuit capacitor and the power module for the connection of the switch pairs. The circuit arrangement has a buffer capacitor connected to a connection of the switch pairs. A first diode connects the buffer capacitor to the other connection of the switch pairs. A step-down controller connects the buffer capacitor to the intermediate circuit capacitor.

Abstract: A brake booster for a brake master cylinder of a motor vehicle, including a drive motor, which is connected/is connectable via a transmission to a pressure piston for the brake master cylinder, the transmission including a rotatable spindle nut having an inner thread, and a rotatably fixed axially displaceable spindle rod having an outer thread, the threads engaging with one another in order to convert a rotational movement of the drive motor into a translational movement of the spindle rod, and the spindle nut including an outer toothing, which is engaged with a toothing of a drive wheel of the transmission. It is provided that the spindle nut is displaceable axially relative to the drive wheel.

Abstract: The present invention relates to the determining of a sensor signal. For example, an enveloping waveform of the signal from a rotational angle sensor can be reconstructed for this purpose. To this end, a predefined number of successively sampled values of a signal from a rotational angle sensor are multiplied with the elements of a weighting vector. On the basis of a measurement vector weighted in this way, an enveloping waveform of a signal curve from a rotational angle sensor can then be determined and, therefrom, a phase angle can be calculated.

Abstract: An electronic transmission range select actuator (ETRSA) includes a primary drive system that operates during normal operation. The ETRSA includes an output shaft that is connected to the system via a lock pin during normal operation. The ETRSA also includes a release mechanism having a secondary motor that operates during a power loss or failure of the system. The secondary motor drives a gear that rotates freely relative to the output shaft. Rotation of the gear results in axial movement of the gear toward the lock pin, which in turn causes disengagement of the lock pin from the output shaft, allowing the output shaft to rotate due to the biasing load of a torsion spring such that the output shaft is returned to the P-range position. Thus, the mechanism is configured to return the output shaft to the P-range during a power loss or failure of the first motor.

Abstract: A conductive through-plating for a substrate includes a metal component, a first conductive structure situated on or in the environment of a surface of the substrate, and a second conductive structure situated on or in the environment of a further surface of the substrate. A method for producing the through-plating includes, in a first step, at least partially applying above the surface a grid structure that includes a group of openings; in a second step following the first step, carrying out an etching producing a trench in the substrate and at least partially also underneath the group of openings; and, in a fifth step following the second step, carrying out a metallization situating a metal component at least partially in the trench such that the metal component is part of a seal sealing the trench in the area of the surface.

Abstract: Systems and methods for providing open loop motor control for an electromechanical brake when closed loop motor control fails. The method includes determining, with an electronic controller, whether a rotor position sensor or a current sensor is not operating correctly, generating, with the electronic controller, a generated control signal for controlling a permanent magnet synchronous machine, and activating, with the electronic controller, the permanent magnet synchronous machine using the generated control signal to generate a stator magnetic field to operate the rotor of the permanent magnet synchronous machine of the electromechanical brake.

Abstract: A method for controlling access to a vehicle. An electronic key for accessing one or multiple vehicle components is deactivated after the vehicle is switched off in order to park the vehicle in a parking position, so that an attempt with the aid of the deactivated electronic key to access the one or multiple vehicle components of the vehicle parked in the parking position may be prevented. Moreover, a system for controlling access to a vehicle, a parking system for vehicles, an access control system for controlling access to a vehicle, a vehicle, a user for a communication network, a method for operating a user for a communication network, and a computer program, are described.

Abstract: An object detection system for used in a vehicle includes an object detector is provided. One or more fisheye lens cameras coupled to an object detection system are positioned at various location of the vehicle for capturing a field of view (FOV) into an image. The image is split into multiple different set of perspective images. Each perspective images may include a portion of overlap having common or identical object of interest. The object detector classifies various objects of interest in the perspective images, estimates distance of objects of interest from the vehicle using camera calibration information stored in one of the camera, and transmits the sensed information that corresponds to the distance of interest to a processor.

Abstract: The present invention relates to a fuel pump for pumping fuel, comprising a piston (2) and a diaphragm seal element (3), which seals on an inner annular seal seat (4) and an outer annular seal seat (5), wherein the following equation is satisfied: (Ra2?ra2)/(ri+L)2=ra/ri, where ri is the inner radius of the inner seal seat (4), ra is the inner radius of the outer seal seat (5), Ra is the outer diameter of the piston (2) and L is a difference between an outer radius (Ria) of the inner seal seat (4) and the inner radius (ri) of the inner seal seat (4). The invention further relates to a method for operating a fuel pump.

Abstract: A projection device for smart glasses. The projection device includes an image-generation unit for generating at least one first ray of light representing first image information, and a second ray of light representing second image information. The first ray of light and the second ray of light differ from each other with regard to a beam divergence. In addition, the first image information and the second image information differ from each other with regard to a perceivable image sharpness. Moreover, the projection device includes at least one deflection element, which is configured to display the first image information within a first field of view of an eye using the first ray of light, and to display the second image information within a second field of view of the eye disposed outside the first field of view, using the second ray of light.

Abstract: An electronically slip-controllable vehicle braking system for a motor vehicle, including an actuatable brake master cylinder, to which at least one wheel brake that is associated with one wheel of a front axle of the vehicle, and at least one wheel brake that is associated with one wheel of a rear axle of the motor vehicle, are detachably connected. An electronically controllable first actuator suite of the braking system establishes and regulates mutually differing brake pressures in the wheel brakes as a function of the respectively existing slip conditions. An electronically controllable second actuator suite establishes and regulates a uniform brake pressure at the wheel brakes, and a third actuator suite limits the brake pressure generated by the second actuator suite at the at least one wheel brake associated with the wheel of the rear axle. Electronic control application to the actuator suites is accomplished via an electronic control device.

Abstract: A device for monitoring an occupancy status of a parking space of a parking area includes a sensor unit for detecting the occupancy status, a near-field communication unit, and a processing unit configured to (a) establish a first wireless data link to a first communication unit of a first external device using the near-field communication unit, (b) receive an activation and/or deactivation command from the external device via the first data link, and (c) activate and/or deactivate the sensor unit upon receipt of the activation and/or deactivation command. The parking area can include the device. Additionally, a system can includes the device and a first external device that includes the first communication unit.

Abstract: A transmitter for an optical device includes semi-conductor waveguides, each incorporating an electro-optic phase-shifter in the semi-conductor waveguide that is operable to change the refractive index of the waveguide to thereby introduce a phase shift in the light propagated through the waveguide. The electro-optic is connected to a phase shift controller and to a temperature measurement component, such as a PTAT circuit, that is integrated into the electronic or photonic chip carrying the waveguide. Temperature measurement by the measurement component can be multiplexed with the normal operation of the phase-shifter so that the temperature measurement function does not interfere with the phase shifting function.

Abstract: The invention relates to a cooling plate (10) for battery cells (40), wherein the cooling plate (10) is in the form of a mounting plate and has mounting elements (12) for directly mounting the cooling plate (10) into a motor vehicle. It is further necessary for the cooling plate (10) together with a housing (20), in particular a half-shell housing, to form a closed-off space (30) for accommodating battery cells (40). The invention further relates to battery cells (40), to a battery cell module and also to a motor vehicle having a battery cell module of this kind.

Abstract: A method for ascertaining a correction value for fuel metering of a fuel injector of an internal combustion engine, in which fuel is injected from a high-pressure accumulator into a combustion chamber with the aid of the fuel injector, the fuel being injected into the combustion chamber in multiple separate injection procedures during one work cycle, a value representative of a static flow rate through the fuel injector being ascertained by ascertaining, for at least one of the multiple separate injection procedures, a ratio of a pressure change caused in the high-pressure accumulator by the at least one of the multiple separate injection procedures and an associated duration characteristic for the at least one of the multiple separate injection procedures being ascertained, and the correction value being ascertained based on a comparison of the representative value to a comparison value.

Abstract: The present invention relates to a method and apparatus for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed. The method (100) for on-line estimation of an initial position of a surface permanent magnet electric machine in a stationary state or at a first speed comprises: injecting a high-frequency pulsating voltage signal; acquiring a d-axis high-frequency current signal responding to the high-frequency pulsating voltage signal; and estimating an initial position of the surface permanent magnet electric machine on the basis of a second harmonic of the d-axis high-frequency current signal.

Abstract: A micromechanical z-acceleration sensor, including a seismic mass element including a torsion spring; the torsion spring including an anchor element, with the aid of which the torsion spring is connected to a substrate; the torsion spring being connected at both ends to the seismic mass element with the aid of a bar-shaped connecting element designed as normal with respect to the torsion spring in the plane of the seismic mass element.

Abstract: A battery charging device includes: a battery housing which delimits at least one battery receiving space at least in part; at least one power electronics unit supplying a charging voltage; and an electronics housing which (i) is formed separately from the battery housing, and (ii) accommodates the power electronics unit in at least one of water-protected manner and dust-protected manner.