Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh

Thomas Feucht

Frank Scholl

Guenter Herrmann

Friedbert Roether

Wolfgang Gscheidle

Falk Hecker

Ulrich Guecker

Markus Deeg

Christian Kaufmann

Andreas Arlt

Thorsten Beyse

Friedbert Röther

Nusret Dagtekin

Ulrich Gücker

Alfred Boeer

Christian Dannheim

Aykun Kasakyan

Christian Dittmar

Günter Herrmann

Anton Horn

Robert Braun

An electromagnetic device for a braking system for a vehicle, including: an armature made of a magnetizable material; a bushing, wherein the armature is at least partially receivable inside the bushing; a first winding arrangement having at least one turn of an electrical conductor around the bushing and having two first electrical terminals; and a second winding arrangement having at least one turn of an electrical conductor around the bushing and having two second electrical terminals, the first winding arrangement and the second winding arrangement being galvanically isolated from one another, an inductive coupling being generatable between the first winding arrangement and the armature and between the second winding arrangement and the armature. Also described are a related method, a control apparatus, a braking system, and a computer readable medium.

Electromagnetic device for a braking system for a vehicle, method and control unit for operating an electromagnetic device for a braking system for a vehicle, and braking system for a vehicle

An overvoltage protection circuit for a control unit for a vehicle includes an input terminal for applying an electrical input voltage, a test terminal for applying an electrical test voltage, and an output terminal for providing an electrical output voltage to supply the control unit. The overvoltage protection circuit also includes a reference device to provide a reference voltage using the input voltage. The overvoltage protection circuit includes a dividing device to provide a divided voltage using the output voltage. The overvoltage protection circuit includes a control device to provide a regulation signal using the reference and divided voltages. The overvoltage protection circuit includes a regulation device connected between the input and output terminals. The regulation device provides the output voltage using the input voltage and the regulation signal. The overvoltage protection circuit includes a modification device to modify a value of the divided voltage using the test voltage.

Overvoltage protection circuit for a control unit for a vehicle, control unit for a vehicle and method for testing an overvoltage protection circuit for a control unit for a vehicle

A device and related method for supplying power to a vehicle-control-unit, including: a first-connection (FC) for a first power-supply-path (PSP), a second-connection (SC) for a second PSP and a neutral-point for connecting the first- and second-PSPs; a first-switch having a first-contact connected to the FC and a second-contact connected to the neutral-point, and a second-switch having a first-contact connected to the SC and a second-contact connected to the neutral-point; first and second-measuring-contacts for capturing first- and second-measured-values representing voltage-potentials of the first-PSP and the second-PSP; a control-device to keep one of the switches open and the other of the switches closed in response to a test-state; and a monitoring-device providing a monitoring-signal using the first and second measured-values for the test-state.

Device for supplying power to a control unit and method for monitoring a power supply

A level converter for a vehicle control device, including: a first voltage terminal; a second voltage terminal; at least one output terminal; an input terminal; a first switch for switching a first current path between the first voltage terminal and the at least one output terminal or one of the output terminals; and a second switch for switching a second current path between the second voltage terminal and the at least one output terminal or another of the output terminals; the first and second switches being switchable in response to different levels at the input terminal so that when a first level is present at the input terminal, the first switch is closed and the second switch is open, and so that when a second level is present, the first switch is open and the second switch is closed. Also described is a related control device, utility vehicle and method.

Level converter and a method for converting level values in vehicle control devices

A device for controlling an actuator/solenoid valve output stage, for a vehicle, including: a terminal to receive an enable signal via an interface to an application unit, the enable signal assuming enable/disable states to enable/disable output stage control; a first suppression terminal to receive a first suppression signal via a monitoring unit interface, the first suppression signal assuming a first authorization/suppression state for authorizing/suppressing output stage control; a second suppression terminal to receive a second suppression signal via a second monitoring unit interface, the second suppression signal assuming a second authorization/suppression state for authorizing/suppressing output stage control; an output terminal as an interface to the output stage; and a linking unit to provide a control signal for controlling the output stage to the output terminal for the enable signal, and the first/second suppression signal has the first/second authorization state. Also described are a related method and actuator circuit.

Device and method for controlling an output stage for an actuator in a vehicle

A surge protection circuit, method, computer readable medium, and use, including: at least one first electronic component having a non-linear characteristic, electrically conductively connected between a tapping point, to which a supply potential is appliable, and a node point; at least one second electronic component having a non-linear characteristic, electrically conductively connected between a tapping point, to which a ground potential is appliable, and the node point; a resistor connected between the node point and a control connection; and a monitoring unit to apply a predetermined voltage to the control connection or to output a predetermined current via the control connection and to detect a voltage/potential at the node point in response thereto, the monitoring unit being configured to identify a malfunction in the surge protection circuit when the detected voltage or the detected potential is not related to an expected voltage or expected potential in a predetermined manner.

Surge protection circuit and method for testing a surge protection circuit

A circuit configuration is provided for switching valves with joint pulse width modulation and quenching, having a first switch to which a pulse width modulation is applied for controlling magnetic fields of a plurality of valve inductors connected to the circuit configuration; a plurality of second switches by which the circuit configuration is able to be switched between a slow and a rapid quenching of the magnetic fields of the inductors; and a diode which is in the conducting state when the second switches are in a switching state for a slow quenching of the magnetic fields of the inductors, and which is no longer parallel to the inductors when the second switches are in a switching state for a rapid quenching of the magnetic fields of the inductors.

Circuit configuration for the joint pulse width modulation of valves with quenching

A device for checking the attachment of a circuit board on a carrier, in particular a housing, has on each attachment point a pair of mutually associated electrically conductive contact surfaces and an electrically conductive connecting arrangement, which connects the circuit board mechanically to the carrier and at the same time connects the electrically conductive contact surfaces of the respective pair electrically to each other. At least one of the electrically conductive contact surfaces of a pair is situated on the circuit board. The other contact surface may likewise be situated on the circuit board or, for an electrically conductive carrier, even on the carrier. The respective pairs of conductive contact surfaces and the electrically conductive connecting arrangement form an electric circuit, which may be connected in a series circuit or a parallel circuit. An evaluation circuit checks whether the electric circuit thus formed is closed.

Device for checking the attachment of a circuit board on a carrier

A circuit configuration for serial communication includes a first half for receiving and emitting sensing and/or actuating signals; a second half for receiving and emitting sensing and/or actuating signals, a two wire connecting line, which connects bidirectionally the first half and the second half of the circuit configuration; and a wake up switching device for waking up the first and second halves of the circuit configuration out of their standby mode without quiescent current. Independently of the switching state of the wake up switching device, a high level state at the output of a second low pass filter device holds a first switching device in its closing state, and a high level state at the output of a first low pass filter device holds a second switching device in its closing state, as a result of which a self-holding of the supply voltage is guaranteed.

Circuit configuration for a serial communication with wake up function

An electromagnetic valve is provided with at least one coil containing at least one coil former. The coil former is provided with at least two separate wire windings, of which, in each case, two are connected in series or in parallel with one another.

Electromagnetic valve which can be operated with different operating voltages and method for its production

A circuit arrangement for switching two backup valves in a rear axle module of an electronic brake system of a utility vehicle is provided, in which the circuit arrangement includes a switch at which pulse width modulation for controlling magnetic fields of inductors of the two backup valves is applied, and a diode for a slow discharge of the two backup valves in correlation with a predetermined operating state of the two backup valves, in which the diode is connected in parallel with two branches, each containing an inductor of the two backup valves, of the circuit arrangement, and in which the diode switches the two backup valves simultaneously in correlation with the predetermined operating state.

Arrangement for switching valves in axle modules of a utility vehicle

An inductive displacement or rotational angle sensor including at least one electrical coil which is provided with turns, and an influencing element which interacts with said coil and produces a different inductance of the least one coil as a function of its position, characterized in that at least two separate coils which are arranged coaxially with respect to a coil axis and have an axial interspacing are provided, it being possible for the influencing element to enter said interspacing with a degree of overlap, which is dependent on its position, with the magnetic fields which are generated by the coils.

Inductive displacement or rotational angle sensor with a screening plate arranged between two coils

A circuit arrangement for analysis and compensation of the signals for an inductive displacement sensor is provided. The circuit includes a first operating amplifier, a second operating amplifier and a coil for a displacement measurement, in parallel with the second operating amplifier output and the second operating amplifier first input and connected to a capacitance in series with the coil inductance and coil resistance to form an RLC series tuned circuit. In order to improve the accuracy of a measured resonance frequency, the circuit arrangement can be extended with a second coil for a temperature compensation, by connecting a first of the ends of the coil winding to a second end of the coil winding of the first coil and a second of the ends of the coil winding to the second input of the first operating amplifier.

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Wimsheim, Germany

Thomas Feucht