Robert Boschgmbh

Stefan Leidich

Fabian Utermoehlen

Andreas Merz

Thomas Buck

Oliver Krayl

Dayo Oshinubi

Remigius Has

Jan Sparbert

Ingo Herrmann

Kerrin Doessel

Ahmad Mansour

Christoph Schelling

Joerg Muchow

Frank Schatz

Helmut Grutzeck

Simon Armbruster

Andreas Krauss

Jochen Franz

Michael Stumber

Tjalf Pirk

Rainer Straub

Fabian Henrici

Frederic Njikam Njimonzie

Friedjof Heuck

Johannes Baader

Stefan Weiss

Peter Degenfeld-Schonburg

Jens Strobel

Zoltan Lestyan

Uwe Wostradowski

Ralf Ameling

Andre Yashan

Dirk Eichel

Andreas Frischen

Joerg Oberlaender

Schumann Schumann

Bassem Baffoun

Ralf Kieser

Anna Krause

Hermann Aichele

A sensor and a method for generating training data for a machine learning classifier in a sensor. The method includes: detecting a first sensor signal and a second sensor signal with the aid of the sensor; ascertaining whether the machine learning classifier classifies the first sensor signal as a predefined user motion pattern; ascertaining whether a classification model classifies the second sensor signal as a predefined user input for controlling a device, the user input being assigned to the user motion pattern; ascertaining a training data vector for the machine learning classifier if the second sensor signal has been classified as the predefined user input, and if the first sensor signal has not been classified as the user motion pattern, ascertaining a training data vector for the machine learning classifier, the training data vector including the first sensor signal as well as the user motion pattern.

Sensor and method for generating training data for a machine learning classifier in a sensor

A method for providing a detection-signal for objects to be detected&#x2014;at least a first and second light-beam including different frequencies being generated with a first optical non-linear 3-wave-process from a light-beam of a light-source including an output-frequency, and the first light-beam including a reference-frequency being detected, and the second light-beam including an object-frequency being emitted and received after reflection on an object, and the light-beam including the output-frequency and the second light-beam including the object-frequency being superposed, and a reference-beam including a reference-frequency being generated with a second optical non-linear 3-wave-process from the two superposed light-beams including the output-frequency and including the object-frequency, and a detection-signal being generated so that the object-distance is determinable due to the aforementioned superposition based on the time-difference between the detection of the first light-beam including the reference-frequency and a detection of a change of the reference-beam including the reference-frequency.

Method for providing a detection signal for objects to be detected

A LIDAR device for optically detecting a field of view. The LIDAR device includes: a control unit for emitting at least one control signal; an electric motor, which has a motor current and is controllably rotatable about a rotational axis with the aid of the at least one control signal, and on which a switchable light source emitting light radiation is situated. The LIDAR device also includes at least one switch for suppressing the emission of the light radiation depending on a behavior of a current variable representing the motor current.

LIDAR device for optically detecting a field of view

A coil assembly includes a coil winding and a multilayer printed circuit board. The coil winding has multiple loops that are arranged in different layers of the printed circuit board and form a main magnetic field with a main measuring direction perpendicular to a main plane of the printed circuit board. The loops arranged in different layers are electrically connected together via at least one via. The printed circuit board has at least four vias or a whole-number multiple of four vias that form an equal number of reverse current paths and forward current paths between the loops of the coil winding. Each pair of vias with the same current path direction is arranged point-symmetrically relative to a common mirror point such that magnetic loops that are formed on printed circuit board secondary planes arranged perpendicularly to the main plane have opposite directions and compensate for one another.

Coil assembly and corresponding measuring assembly

A rotational angle sensor includes a stator element and rotor element. The stator element has a stator transmitting coil and stator receiving coil. The rotor element is rotatably mounted about a rotation axis, relative to the stator element, and has a rotor receiving coil and rotor transmitting coil electrically connected to each other. The rotor receiving coil is inductively coupled to the stator transmitting coil such that an electromagnetic field produced by the stator transmitting coil induces a current in the rotor receiving coil that flows through the rotor transmitting coil and causes the rotor transmitting coil to produce a further electromagnetic field. The stator receiving coil is inductively coupled to the rotor transmitting coil such that the inductive coupling between the stator receiving coil and the rotor transmitting coil is configured with reference to a rotational angle between the stator element and the rotor element, and such that the further electromagnetic field induces an angle-dependent alternating voltage in the stator receiving coil. The stator transmitting coil has a first circular outer partial winding, and a first circular inner partial winding positioned within and electrically connected to the first outer partial winding such that the first inner partial winding has an opposite current flow with respect to the first outer partial winding. The rotor receiving coil has a second circular outer partial winding and a second circular inner partial winding positioned within and electrically connected to the second outer winding such that the second inner winding has an opposite current flow with respect to the second outer partial winding. The first and second outer partial windings, and the first and second inner partial windings are oriented with respect to each other, respectively.

Rotational angle sensor

A method for determining a sensor coil inductance of an eddy current sensor using an LC oscillator circuit includes determining the sensor coil inductance via integration, as a function of an oscillation frequency and a resonance capacitance of the LC oscillator circuit. The method further includes detuning, at least once, the oscillation frequency during the integration.

Method and device for determining a sensor coil inductance

A rotation angle sensor system for an optical system that includes a rotor and a stator, includes a stator-based coil system having an inductance and for generating and transmitting a magnetic alternating field, and a rotor-based target that functions as an eddy current element for receiving the magnetic alternating field and generating a magnetic eddy current field. The coil system and the target are mounted or mountable fixedly, with respect to rotation, on the stator and the rotor, respectively, in such a way that different overlaps and/or spatial proximities between the coil system and the target, with correspondingly different effects on the magnetic alternating field of the coil system, result as a function of the rotation angle and/or of the orientation between the stator and the rotor.

Rotation angle sensor system, lidar system, and work device

A displacement sensor includes an induction element and sensor element. The induction element has an electrically conductive measurement track element extending along a measurement path, and two electrically conductive correction track element positioned adjacent to each other relative to the path. The sensor element is movable relative to the induction element along the measurement track element, and has a measurement coil positioned over the measurement track element and two correction coils positioned adjacent to each other relative to the path. A position change of the measurement coil on the path changes an overlap of the measurement coil and the measurement track element along the path such that an induction of the measurement coil is configured with reference to the position of the measurement coil on the measurement path. Each correction coil is positioned over a respective corrective track element such that an overlap of the correction coil over the respective corrective track element is constant.

Tilt-tolerant displacement sensor

A rotation angle sensor system for an optical system and/or a LIDAR system having a rotor and a stator for determining a rotation angle and/or an orientation between the rotor and the stator, which has a coil system that is stator-based and rotatably fixedly attached or attachable to the stator as a sensor element for receiving a magnetic alternating field, and, having a target that is rotor-based and rotatably fixedly attached or attachable to the rotor for generating a magnetic alternating field, and in which the coil system and the target are attached or are attachable to the stator and to the rotor so that different overlaps and/or spatial proximities occur between the coil system and the target as a function of the rotation angle and/or of the orientation between stator and rotor with a correspondingly different influence of the magnetic alternating field of the target on the coil system.

Rotation angle sensor system, lidar system, work device and operating method for a LIDAR system

A rotary sensor includes a stator element and a rotor element that is rotatably mounted in respect of the stator element about an axis of rotation. A rotary angle can be captured by inductive coupling between the rotor element and the stator element. The rotary sensor further includes a measuring device configured to capture the rotary angle depending on the inductive coupling between the rotor element and the stator element. The stator element has at least one transmission coil for emitting alternating electromagnetic fields and at least two reception coils for capturing alternating electromagnetic fields, when the measuring device is configured to excite the at least one transmission coil with at least two mutually different frequencies for emitting at least two alternating electromagnetic fields.

Rotation angle sensor for a stator

An angular position sensor includes a stator element with at least three coils, a rotor element rotatably mounted with respect to the stator element, and an evaluation unit configured to determine an angle of rotation between the rotor element and stator element. The rotor element is configured to inductively couple with each of the at least three coils with varying strengths based on the angle of rotation. The evaluation unit is further configured to supply the coils with alternating voltage in a cyclical manner and in sequence, so that a first respective part of the coils is supplied with alternating voltage and a remaining part is de-energized. The evaluation unit is additionally configured, in a cyclical manner in sequence with one or more de-energized coils, to detect at least one of a respective phase and an amount of an induced alternating voltage, and to determine the angle of rotation therefrom.

Angular position sensor

A sensor arrangement for contactless linear position detection includes a target having a measuring transducer running along a measuring path, and a magnetic field sensor arranged at a distance from the measuring transducer and in a relatively movable manner along the measuring path. The magnetic field sensor at least partially covers the measuring transducer. The measuring transducer is magnetically conductive. The magnetic field sensor includes a carrier having at least one measuring sensor with a two-dimensional or three-dimensional detection range, and at least one permanent magnet that generates a local magnetic field. The magnetic flux of the at least one permanent magnet is introduced into the measuring transducer, which includes an influencing device configured to influence the introduced magnetic flux based on a current position of the magnetic field sensor along the measuring path.

Sensor arrangement for contactless linear position detection

A determination device for determining a value representing a dose of a dose metering device includes an eddy-current-based rotational angle sensor. The rotational angle sensor can be coupled to a rotatable dosing knob of the dose metering device and can image a rotational angle of the dosing knob representing the dose in a rotational angle signal. The determination device further includes an analysis device that can establish the value of the dose using the rotational angle signal.

Determining device for determining a value representing a dose of a dose metering device, and a method for operating same

A linear-displacement sensor includes a base element arranged with a sensor coil and an excitation coil in such a manner that an AC voltage is induced in the sensor coil upon application of an AC voltage to the excitation coil. An at least partly electrically conductive sliding element is configured to be shifted relative to the base element in a direction along the measurement path. The sliding element has a variable geometry along the measurement path to inductively couple partial turns of the sensor coil with the excitation coil. A correction coil is arranged above a geometry of the sliding element so that an inductive coupling of the correction coil and hence an amplitude of an AC voltage induced in the correction coil is dependent on a lateral offset of the sliding element in relation to the base element.

Linear displacement sensor

A method for determining an injection process of an injection appliance includes injecting a fluid with the injection appliance and applying an electrical signal to at least one helical spring of the injection appliance coupled to a dosing wheel of the injection appliance. The method also comprises detecting an inductance value of the at least one helical spring. A number of windings of the at least one helical spring is dependent on a set rotation angle of the dosing wheel. The set rotation angle corresponds to a dose quantity of the fluid that is preselected for the injection process. The method moreover includes making available a determination signal representing the determined injection process, using the detected inductance value.

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Rutesheim, Germany

Stefan Leidich