Abstract: A method for detecting a rollover on the basis of a signal of an acceleration sensor in the direction of the vertical axis of the vehicle is described, wherein the time period in which acceleration lies within a specified range is assessed. For this purpose, a counter and a clock generator are provided, wherein the counter is incremented each clock pulse if acceleration lies within a specified range, and the counter is decremented maximally to the value of zero if acceleration lies outside of a specified range. An emergency call may be triggered if a specified counter reading is reached. Additionally, a maximum speed may be specified in the travel direction above which the counter or the triggering is not active.

Abstract: A rotor assembly for an electric machine includes a rotor having an axis of rotation extending in an axial direction of the rotor and at least one first hole extending parallel to the axis of rotation and radially spaced from the axis of rotation by a first radial distance, and at least one first balancing element for compensating an unbalance of the rotor in rotation about the axis of rotation. The at least one first balancing element can be provided in the at least one first hole and can be fastened in the at least one first hole by means of a press fitting connection between the at least one first hole and the at least one first balancing element. Thus, a simple and economical possibility of balancing the rotor is provided.

Abstract: A method for determining a reference current curve for a fuel injector having a magnetic coil drive in an internal combustion engine of a motor vehicle includes: (a) applying a first voltage pulse to the magnetic coil drive to open the fuel injector, (b) applying a holding voltage to the magnetic coil drive to hold the fuel injector open, (c) switching off the holding voltage, (d) waiting for substantially no current to flow through the magnetic coil drive for a predetermined time period that is sufficiently short that the fuel injector remains open, (e) applying a second voltage pulse to the magnetic coil drive, and (f) recording a time-based curve of the current that flows through the magnetic coil drive during the second voltage pulse, which forms the reference current curve. This reference current curve is used for determining a time of a predetermined opening state of the fuel injector.

Abstract: An on-board electrical system for a vehicle comprising: a first energy store; a second energy store; a DC/DC converter bidirectionally transferring energy between the first energy store and the second energy store; and two switching devices for coupling a first terminal of the second energy store to a first terminal of the first energy store via a first node, a second node, and a third node.

Abstract: An electromagnetic actuator includes an electromagnet having a coil, which coil surrounds a pole core, and a magnet armature, which can be moved toward the pole core by the electromagnet, wherein the magnet armature has a bearing surface facing the pole core and the pole core has a correspondingly opposite counter surface. The bearing surface and/or the counter bearing surface has a layer that prevents direct contact of the bearing surface with the counter bearing surface and that causes damping of the approaching movement.

Abstract: A method for operating a switch valve which opens and closes a fluid line is disclosed. The switch valve is actuated by a pulse width modulated signal. The switch valve is actuated outside of the active operating time of the switch valve using PWM signals with an increasing or decreasing duty cycle. The duty cycle in which the switch valve is opened is determined, and the duty cycle corresponding to the opening time is then used to actuate the switch valve to open and close the switch valve during the active operating time of same. In this manner, the switch valve can be actuated in a particularly precise manner.

Abstract: A piezo injector for direct fuel injection may comprise an injector body, an actuator unit having a piezoelectric actuator with a head plate and a base plate, a hydraulic coupler having a coupler piston, a coupler cylinder, and a coupler spring, and a nozzle unit having a nozzle needle arranged in a nozzle body. The piezoelectric actuator is surrounded by a corrugated tube braced between the head plate and the base plate such that the piezoelectric actuator has a preload imparted to it. The coupler spring forces the coupler piston against a face side, facing toward the coupler piston, of the nozzle needle.

Abstract: A fuel tank system has a fuel tank and a storage element. In monitoring the fuel tank system, to check the sealing action of the fuel tank system at regular intervals during driving of the motor vehicle, a first valve is arranged in the first line upstream of the storage element as viewed in the direction of the fresh-air flow, an air pump is arranged between the first valve and the storage element, and a second valve is arranged in the second line between the storage element and the intake line. A mass flow sensor is arranged in the first line between the first valve and the storage element.

Abstract: A method for operating a fuel injection system with pressure reduction, and a fuel injection system that includes a fuel injection valve with a servo valve are provided. The method for operating a fuel injection system includes performing a desired pressure reduction in the pressure accumulator using at least one fuel injection valve of the fuel injection system. This is achieved by opening a servo valve in the fuel injection valve, which is opened, during a pressure reduction phase, just wide enough that the actual closing element remains closed and as a result no fuel injection process takes place.

Abstract: A method for determining the composition of a fuel in a lubricant in an internal combustion engine in disclosed. The composition of a fuel having at least a first portion of a first fuel component and a second portion of a second fuel component is predefined. The mass flow with which the fuel is introduced into the lubricant in an introduction phase or discharged from the lubricant and from the housing in a discharge phase is determined. The composition of the mass flow is determined from a first mass flow of the first fuel component and a second mass flow of the second fuel component, which are determined based on a) an introduction parameter in the introduction phase or a discharge parameter in the discharge phase, and b) the first portion of the first fuel component and the second portion of the second fuel component in the fuel.

Abstract: A sensor for detecting oxidizable gases may comprise a catalytically inactive surface and a catalytically active surface on opposite sides of a sensor element and a thermal element running through the sensor element to connect the two surfaces, with a device for measuring a thermoelectric voltage between the catalytically active surface and the inactive surface as a measure of the difference in temperature and therefore the gas concentration. The sensor may include a hot plate mounted on a base carrier by means of narrow arms, wherein the thermal element includes at least one via extending through the hot plate and connecting the two surfaces to one another, and in the region of which the thermoelectric voltage is measured.

Abstract: A fluid injection assembly for a combustion engine includes an injector body having a notch, an injector cup, which radially encloses an axial end of the injector body and has a projecting part, and a spring clip arranged between the injector body and the injector cup. The spring clip includes a ground plate, at least one spring element, and at least one holding element engaging behind the projecting part of the injector cup. The ground plate is arranged in the notch of the injector body. The injector body and the injector cup are coupled together by the spring clip by mechanical interaction via the projecting part and the notch, respectively.

Abstract: A method for transmitting data in a packet-oriented communications network, in particular of a motor vehicle and to a user terminal configured for carrying out the method. In the method, data packets are transmitted without a guaranteed transmission time for the data packets and with a guaranteed maximum transmission time for the data packets in said communications network. For a data transmission with a guaranteed transmission time, a specific quality of service is reserved prior to the data transmission by reservation request from the sender of the data to the receiver of the data and the data transmission with a guaranteed transmission time is only started once a confirmation of the reservation request sent by the sender has been received. In addition, selected data that is to be transmitted in a guaranteed transmission time is sent directly as a data stream of data packets and a reservation request is sent after the start of the data stream.

Abstract: A system for transmitting transmissions in vehicles includes a first communication module for establishing a communication connection to a communication terminal of a supplier, which communication terminal receives authorization data by a communication network, a first identification routine for uniquely identifying a supplier, a second communication module for establishing a communication connection to a communication device of a control unit of the access assembly of a vehicle by wireless communication network, a second identification routine for uniquely identifying the system by the access assembly, a third communication module for receiving update request information of the driver, and an update routine for updating authorization data in a memory of the system.

Abstract: The disclosure relates to a method and a device for determining the load condition of an exhaust gas particulate filter that is arranged in an exhaust gas path of an internal combustion engine that is charged by an exhaust gas turbocharger. The behavior of a charging pressure controller or the charging pressure of the exhaust gas turbocharger is analyzed to determine the load condition of the exhaust gas particulate filter.

Abstract: A method for detecting contaminations on a lens of a vehicle camera. Transition values are assigned to pixels of image frames. Three-dimensional coordinates are assigned to the pixels by using a simplified model of the scene. Using the assigned coordinates and movement data, trajectories are assigned to the pixels. An expectation value is derived from a transition value of a starting pixel of a trajectory and a satisfied transition value is derived from transition values along the trajectory. The expectation value and the satisfied transition value are accumulated over time, and a cleanliness value is derived from a ratio of the accumulated satisfied transition value to the accumulated expectation value.

Abstract: A switch actuation detection unit has a switch actuation voltage reception terminal and a logic circuit. The logic circuit includes a first port, a second port, a zener diode, and a signal port. The switch actuation voltage reception terminal receives a switch actuation voltage. The first port is connected to the switch actuation voltage reception terminal. A first terminal of the zener diode is connected to the switch actuation voltage reception terminal while a second terminal of the zener diode is connected to the second port. The signal port provides a plurality of pre-determined switch state signals.

Abstract: Electronic device (1), capable of operating a DC motor, including an H bridge with an upper left-hand switch (R1), an upper right-hand switch (R2), a lower left-hand switch (R3) and a lower right-hand switch (R4), the second terminal (R1b) of the upper left-hand switch being connected to the second terminal (R3b) of the lower left-hand switch, and the second terminal (R2b) of the upper right-hand switch being connected to the second terminal of the lower right-hand switch, wherein the device is modified by cutting the link between the second terminal of the upper left-hand switch and the second terminal of the lower left-hand switch, and by cutting the link between the second terminal of the upper right-hand switch and the second terminal of the lower right-hand switch.

Abstract: A layered glass assembly for optical light beam projection with three-dimensional depth perception for a vehicle includes: a display surface glass having a first refractive index and being configured to refract a first section of a light beam at a first interface; a first transition structure configured to refract a second section of the light beam at a second interface; a filler structure having a second refractive index and being configured to refract a third section of the light beam at a third interface; a second transition structure configured to refract a fourth section of the light beam at a fourth interface; and a front glass having a third refractive index and being configured to project the refracted light beam so as to generate the three-dimensional depth perception.

Abstract: A method for actuating a fuel injector having a magnetic coil drive for an internal combustion engine of a motor vehicle is disclosed. The fuel injector has a first terminal and a second terminal, where the first terminal is connectable via a switch element to ground and the second terminal is connected to ground. The method includes the following: actuating the switch element to connect the first terminal to ground, acquiring a time curve of the current strength of a current flowing through the magnetic coil drive, and applying a voltage pulse to the magnetic coil drive to initiate an opening procedure of the fuel injection. A duration of the voltage pulse is established as a function of the acquired time curve of the current strength. Furthermore, an engine controller and a computer program are described.