Abstract: By detecting the pressure time characteristic on the high-pressure side of an injection pump, the delivery volume of the pump is able to be determined without intervention in the injection system.

Abstract: An embodiment of a method for a determination, section after section, of a parameter-dependent correction value approximation course includes determining a first measurement signal value with a first parameter value associated with a sensor arrangement when the first parameter value fullfils a predetermined condition or a trigger condition is fulfilled, changing the first parameter value to obtain a second parameter value, determining a second signal value with the second parameter value and determining a second partial section of the correction value approximation course for a second parameter range based on a functional connection describing the second partial section, the first parameter value, the second parameter value, the first measurement signal value, the second measurement signal value and an initial correction value.

Abstract: In a common rail system having two electrically controlled actuating elements, e.g., a metering unit at the input side of a high-pressure pump and a pressure regulating valve on the common rail, different fuel delivery quantities are able to be set in the common rail system while the vehicle is stationary, independent of the current engine load, by controlling operating points via one of the actuating elements and subsequently regulating the other actuating element. Control currents of the actuating elements correspond to the operating points. These control currents, or differences of control currents, are compared to target values to enable an evaluation of the common rail system.

Abstract: A calibratable magnetic field sensor for sensing a first and a second spatial component of a magnetic field in a reference point, wherein the magnetic field includes a first and a second measurement field component and/or a first and a second calibration field component. The magnetic filed sensor includes a first sensor element arrangement including at least a first and a second sensor element for sensing the first magnetic field component, which includes a first measurement field component and/or a first calibration field component, with respect to a first spatial axis in the reference point. Furthermore, the magnetic field sensor includes a second sensor element arrangement for sensing the second magnetic field component, which includes a second measurement field component and/or a second calibration field component, with respect to a second spatial axis in the reference point.

Abstract: A method and device for monitoring a fuel metering system, in which fuel is pumped from a low-pressure zone into a high-pressure zone. The pressure in the high-pressure zone is detected. An error is recognized on the basis of the pressure variation in the high-pressure zone. The type of error is recognized on the basis of the shape of a pressure drop curve. The variation of the pressure quantity over time is approximated using a function such as the hyperbolic function. The type of error is recognized on the basis of the quantity characterizing the function.

Abstract: A method and an arrangement for magnetically determining a position using a permanent magnet is described, wherein the vector and local gradient of the magnetic flux density of the permanent magnet is measured using a position sensor, and the position and orientation of the magnetic dipole of the the permanent magnet relative to the position sensor is calculated from the measured values. A spherical permanent magnet having homogenous magnetization is used in the method and the arrangement, preventing previously present cross-sensitivity between the position and orientation determination, and allowing measurement without prior calibration.

Abstract: A magnetic field sensor for detecting first, second, and third spatial components of a magnetic field at a reference point includes a first sensor element arrangement for detecting the first magnetic field component having a first measurement field component and a first calibration field component with respect to a first spatial axis at a reference point, a second sensor element arrangement for detecting the second magnetic field component having a second measurement field component and a second calibration field component with respect to a second spatial axis y at the reference point and a third sensor element arrangement for detecting the third magnetic field component having a third measurement field component and a third calibration field component with respect to a third spatial axis x at the reference point.

Abstract: A circuit for processing an analog signal having a time sequence of discrete signal levels, each of which lies in a time interval and represents an information-bearing segment of the interval while the rest of the time interval is a non-information-bearing segment, comprises a transistor in emitter-follower or source-follower configuration, a high emitter or source resistance or, instead, a high-ohm constant current source, and a device for applying a voltage supply, as well as a switch which is connected between the emitter and a reference potential to prevent a current from flowing via the high-ohm resistance or the high-ohm voltage source for charge reversal of an output capacitance of the circuit in one direction, whereas for charge reversal in the other direction the dynamic current boosting effect of the transistor is exploited. This results in a fast emitter-follower or source-follower circuit which is particularly suitable as the output stage for image sensors.

Abstract: In a method and a sensor arrangement for processing sensor signals of a sensor, which is operated in a plurality of measurement cycles with successive phases with different driving, before the amplification, the sensor signals of n phases of each measurement cycle are weighted with negative mathematical sign and the sensor signals of the remaining n phases of the measurement cycle are weighted with positive mathematical sign by a modulation. Before the amplification, an offset averaged from the sensor signals of the two phases is subtracted from the sensor signals of each two of the phases which were weighted with different mathematical sign and have an offset of the same mathematical sign after the modulation. The artificially generated offset is eliminated again by a demodulation after the amplifier and a summation over the digitized signals of each measurement cycle.

Abstract: A circuit for processing an analog signal having a time sequence of discrete signal levels, each of which lies in a time interval and represents an information-bearing segment of the interval while the rest of the time interval is a non-information-bearing segment, comprises a transistor in emitter-follower or source-follower configuration, a high emitter or source resistance or, instead, a high-ohm constant current source, and a device for applying a voltage supply, as well as a switch which is connected between the emitter and a reference potential to prevent a current from flowing via the high-ohm resistance or the high-ohm voltage source for charge reversal of an output capacitance of the circuit in one direction, whereas for charge reversal in the other direction the dynamic current boosting effect of the transistor is exploited. This results in a fast emitter-follower or source-follower circuit which is particularly suitable as the output stage for image sensors.

Abstract: By detecting the pressure time characteristic on the high-pressure side of an injection pump, the delivery volume of the pump is able to be determined without intervention in the injection system.

Abstract: A calibratable magnetic field sensor for sensing a first and a second spatial component of a magnetic field in a reference point, wherein the magnetic field includes a first and a second measurement field component and/or a first and a second calibration field component. The magnetic filed sensor includes a first sensor element arrangement including at least a first and a second sensor element for sensing the first magnetic field component, which includes a first measurement field component and/or a first calibration field component, with respect to a first spatial axis in the reference point. Furthermore, the magnetic field sensor includes a second sensor element arrangement for sensing the second magnetic field component, which includes a second measurement field component and/or a second calibration field component, with respect to a second spatial axis in the reference point.

Abstract: A thermodynamic machine for the absorption and emission of heat at different temperatures has at least one thermodynamic device with at least one membrane separating a gas phase and a liquid phase provided for transport of heat, wherein the at least one membrane is permeable for at least one component contained in the gas and liquid phases. The at least one membrane is a porous membrane or a solution diffusion membrane or a modification of the porous membrane or a modification of the solution diffusion membrane.

Abstract: An embodiment of a method for a determination, section after section, of a parameter-dependent correction value approximation course includes determining a first measurement signal value with a first parameter value associated with a sensor arrangement when the first parameter value fulfils a predetermined condition or a trigger condition is fulfilled, changing the first parameter value to obtain a second parameter value, determining a second signal value with the second parameter value and determining a second partial section of the correction value approximation course for a second parameter range based on a functional connection describing the second partial section, the first parameter value, the second parameter value, the first measurement signal value, the second measurement signal value and an initial correction value.

Abstract: The present invention relates to a method and a sensor arrangement for processing sensor signals, which are subject to an offset, of a sensor (6), which is operated in a plurality of measurement cycles with successive phases with different driving. In the present method, before the amplification, the sensor signals of n phases of each measurement cycle are weighted with negative mathematical sign and the sensor signals of the remaining n phases of the measurement cycle are weighted with positive mathematical sign by a modulation (1). Before the amplification, an offset averaged from the sensor signals of the two phases is subtracted from the sensor signals of each two of the phases which were weighted with different mathematical sign and have an offset of the same mathematical sign after the modulation (1). The artificially generated offset is eliminated again by a demodulation (3) after the amplifier (9) and a summation over the digitized signals of each measurement cycle.

Abstract: A waveguide driving circuit for generating a current pulse in a waveguide includes a voltage source for providing a direct voltage, a choke the first terminal of which is coupled to a first terminal of the voltage source, a first switch the first terminal of which is coupled to a second terminal of the choke and the second terminal of which is coupled to a second terminal of the voltage source, the waveguide the first terminal of which at a first waveguide end is coupled to the first terminal of the first switch and the second terminal of which at the first waveguide end is coupled to a second terminal of the voltage source, and a controller implemented to open and close the first switch, to generate a current pulse at the terminals of the waveguide at the first waveguide end.

Abstract: A method and device for monitoring a fuel metering system, in which fuel is pumped from a low-pressure zone into a high-pressure zone. The pressure in the high-pressure zone is detected. An error is recognized on the basis of the pressure variation in the high-pressure zone. The type of error is recognized on the basis of the shape of a pressure drop curve. The variation of the pressure quantity over time is approximated using a function such as the hyperbolic function. The type of error is recognized on the basis of the quantity characterizing the function.

Abstract: A switching regulator for generating a regulated output voltage comprises a charging switch, a network with a coil, a capacitor and a diode as well as a control to open and close the charging switch. On the output side, the network has a positive output rail and a negative output rail, wherein the output voltage to be regulated is applied between the positive output rail and the negative output rail. The control is formed to control a change-over switch to connect the control input of the charging switch either to the positive output rail or the negative output rail via a potential coupling means. Thus, for controlling the switch, no individual potential has to be generated, but the potential at the positive output rail or the negative output rail, which is anyway applied, is used for controlling the charging switch. Thereby, the inventive switching regulator can be structured in a simple way and, additionally, provides defined and fast startup without requiring additional startup circuits.

Abstract: A circuit for processing an analog signal having a time sequence of discrete signal levels, each of which lies in a time interval and represents an information-bearing segment of the interval while the rest of the time interval is a non-information-bearing segment, comprises a transistor in emitter-follower or source-follower configuration, a high emitter or source resistance or, instead, a high-ohm constant current source, and a device for applying a voltage supply, as well as a switch which is connected between the emitter and a reference potential to prevent a current from flowing via the high-ohm resistance or the high-ohm voltage source for charge reversal of an output capacitance of the circuit in one direction, whereas for charge reversal in the other direction the dynamic current boosting effect of the transistor is exploited. This results in a fast emitter-follower or source-follower circuit which is particularly suitable as the output stage for image sensors.

Abstract: A switch device includes a switch to be tested with a first terminal and a second terminal as well as a control terminal for controlling a resistance between the first terminal and the second terminal. Furthermore, the switch device includes a resistor as well as means for providing a measuring current across the resistor into the first terminal of the switch to be tested, wherein the control terminal and the first terminal of the switch to be tested are coupled in electrically conductive manner. Furthermore, the switch device includes means for sensing a voltage present due to the measuring current between the control terminal and the second terminal of the switch to be tested, wherein the voltage refers to an operability of the switch to be tested. With the switch device, in particular a greater number of potentially occurring errors of the switch to be tested can be detected as opposed to conventional switch devices.