Robert Boschgmbh

Other

Rasmus Rettig

Klaus Walter

Werner Schiemann

Franziska Kalb

Heinrich Steinruecken

Ruediger Block

Klemens Gintner

Christelle Andriot

Florian Hartwich

Frank Fischer

Oliver Kohn

Dietrich Schubert

Joachim Joos

Christian Bauer

Marc Eschenhagen

Martin Haas

Michael Merkle

Michael Schulz

Birgit Vogelgesang

David Heisenberg

Emma Axten

A multiphase DC voltage converter and a method for controlling a multiphase DC voltage converter, having at least two parallel coils which are controlled in a time-shifted manner, at least one control unit for activating the coils, and at least one magnetically sensitive sensor element for detecting a magnetic field generated by the current flow through the coils. The control unit controls the current flow through the coils as a function of an output signal of the at least one sensor element.

Multiphase DC voltage converter and method for controlling a multiphase DC voltage converter

A method for maintaining a predetermined voltage in a battery-supported vehicle electrical system during the operation of an electrical starter includes steps of operating the electrical starter on the vehicle electrical system during a first time phase in series with a limiting resistor, in order to limit the current flowing through the starter, and operating the electrical starter on the vehicle electrical system during a second time phase with a reduced limiting resistance, in order to increase a power converted by the starter. A transition from the first time phase to the second time phase is controlled on the basis of electrical parameters sampled during the first time phase at the limiting resistor.

Voltage control in a vehicle electrical system

A method for transmitting logical information from a transmitter to a receiver via a single line, the receiver being connected to the transmitter by the line, the receiver placing a first signal on the line and the first signal being made up of alternating recessive and dominant levels, the transmitter placing a second signal on the line and the second signal being superposed on the line by the transmitter at least in the segments in which the first signal has a recessive level, the second signal being made up of a sequence of recessive and dominant levels, and the receiver determining from the second signal the logical information that is to be received.

System and method for transmitting information from a transmitter to a receiver via a single line

A method and a circuit system for operating an electric machine are presented. The method is carried out in particular in a starting phase, a current being limited using a controllable resistor, the controllable resistor being implemented by at least one semiconductor switch, which is controlled using a clocked signal, and the signal being set in such a way that in shutdown phases, the at least one semiconductor switch is not completely shut down.

Method for operating an electric machine

A method and a bus connection unit for selectively waking participants of a bus system in an idle state, the participants not in the idle state exchanging messages via the bus using a serial communication protocol, the messages characterized by a leading identifier, the participants not in the idle state deciding based on the identifier whether they receive the message, the messages being evaluated by the participants in the idle state in at least three phases, a number of signal properties, edges and/or edge changes being determined in a first phase, a sequence of time intervals between signal properties, edges and/or edge changes being determined in a second phase, a wake pattern being determined from the serial signal sequence of the message in a third phase, and participants in the idle state leaving the idle state as a function of the items of information determined during the three phases.

Method and bus connection unit for unambiguously waking users of a bus system

An integrated circuit for information transfer, having a substrate, at least one Hall element which is integrated into the substrate or situated on the substrate, a first coil which is situated essentially concentrically with respect to the Hall element and at a distance from the Hall element in the vertical direction and galvanically separated therefrom, and at least one second coil which is situated essentially concentrically with respect to the Hall element and galvanically separated therefrom and situated at a distance from the Hall element and the first coil in the vertical direction. The first coil and the second coil are electrically connected in series so that a current flow in the same direction results in the coils.

Integrated circuit for information transfer

A magnetic sensor arrangement (), having magnetically sensitive sensor elements () whose electrical properties are changeable as a function of a magnetic field that a moving, passive transmitter element () is able to influence. The magnetic sensor arrangement () has two sensor elements () in a gradiometer arrangement that are each respectively associated with one of two magnetic regions () of a permanent magnet embodied in the form of a gap magnet (), which regions are spaced apart from each other by a predetermined distance (sa). The regions () and the gap magnet ()&#x2014;in terms of the for example wedge-shaped embodiment, the dimensions (h, b, t), the gap width (sa), the gap depth (st), and their positions in relation to the sensor elements ()&#x2014;are situated so as to minimize the offset of the output signal of the sensor elements () in the gradiometer arrangement.

Magnet sensor arrangement for sensing the movement of element moving in linear or rotary fashion

A method and system for making available an improved phase signal of a phase sensor on a camshaft of an internal combustion engine immediately after switching on the phase sensor and/or the internal combustion engine are provided. In this context, the phase sensor scans the angle marks of a signal-generating wheel that is connected to the camshaft in a torsionally fixed manner. In addition, a crankshaft sensor scans the angle marks of a signal-generating wheel that is connected to the crankshaft in a torsionally fixed manner.

Method and system for making available an improved phase signal of a phase sensor on a camshaft of an internal combustion engine

The method and circuit arrangement both minimize stray electromagnetic interference in an electronic circuit, in which symmetric measurement signals are evaluated. Both inputs (InP, InM) of an evaluation circuit () are provided with a bank of switchable capacitors (C) individually or in groups, which are connectable with the respective inputs. A predetermined interference signal is applied to the respective inputs (InP, InM) and individual ones or groups of the switchable capacitors (C) are selectively connected with the inputs (InP, InM) so that a maximum suppression of the predetermined interference signal can take place. Data regarding the capacitance values selected during the suppression of the predetermined interference signal is stored in the memory () of a switching controller () during selective switching so that the same adjustment occurs automatically during subsequent operation cycles of the circuit arrangement.

Method and circuit arrangement for minimizing interference in an electronic circuit

In a method for diagnosis of a sensor in a motor vehicle having an internal combustion engine, during operation of the motor vehicle, an output signal of the sensor is monitored for whether a maximum value of the output signal undershoots a first threshold value and/or a minimum value of the output signal overshoots a second threshold value. In that case a signal is forwarded to a controller that signals to the controller that the sensor, upon restarting of the motor vehicle, might be furnishing incorrect data.

Diagnostic method for a sensor

A method for detecting the motion of an element relative to a sensor apparatus is proposed, in which a detection of the direction of motion is performed. As a function of the direction of motion, a measurement signal is increased or decreased at predetermined measurement intervals, and only if a predetermined threshold value is exceeded is a direction-of-motion signal generated. Preferably, by means of a counting logic circuit (), a counter is increased by a binary amount In one direction () and the counter () is decreased by a binary amount in the respective other direction (). Upon a detection of measurement signals which as a result of being increased or decreased in a measurement interval do not lead to exceeding of the predetermined amount of the threshold value, vibration of the element is assumed.

Method and assembly for detecting the motion of an element

In the method and circuit arrangement for offset correction of the measurement bridge, the full bridge signal and half bridge signal of the measuring bridge are measured; a self-adjustment of the half bridge signal path to an output signal of the full bridge signal bath is performed to adjust the half bridge signal to the full bridge signal for each measurement cycle between turn on and turn off of the measurement bridge; and an offset value of the half bridge signal path is determined at a time of turning on and the offset value is kept constant during a given measurement cycle.

Method and circuit arrangement for offset correction of a measurement bridge

The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (to) are evaluated as a function of a pulse generator () that is moved past the sensor (). The signals () of two sensor elements () disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals () of the individual sensor elements () and of the differential signals () of the individual sensor elements () are evaluated as to whether all three signals are in phase.

Method and device for the detection of the movement of an element

A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals () are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (). When the element moves below a predetermined limiting value (f), a relatively great switching hysteresis (Hyst) is set, and when the limiting value (f) is exceeded, a reduced switching hysteresis (H) is set.

Method and assembly for determining rational speed with variable switching hysteresis

A measuring device for contactless detection of a ferromagnetic object, comprising at least one magnet; a magnetic field-sensitive element arranged so that an air gap is provided between the magnetic field-sensitive element and the ferromagnetic object; and a soft-magnetic component located between magnet and the magnetic field-sensitive element on a face of the magnet which points in a direction of the ferromagnetic object to be detected, said soft-magnetic component being formed as a cap-shaped element that has a recess that is open in a direction away from said magnetic field-sensitive element to house the magnet and an opening that is open in a direction of the magnetic field-sensitive element, to house the magnet and opening that is open in a direction of the magnetic field-sensitive element, the soft-magnetic component having a first side wall defining said recess and also having a portion which forms a second side wall defining said opening, said first side wall and said second side wall being in alignment with one another.

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Gerlingen, Germany

Rasmus Rettig