DE102008012922A1 - Inductive angle sensor for motor vehicles, has stator in planner arrangement, which comprises exciter element and receiving element, and rotor and control and evaluation unit are provided - Google Patents
Inductive angle sensor for motor vehicles, has stator in planner arrangement, which comprises exciter element and receiving element, and rotor and control and evaluation unit are provided Download PDFInfo
- Publication number
- DE102008012922A1 DE102008012922A1 DE102008012922A DE102008012922A DE102008012922A1 DE 102008012922 A1 DE102008012922 A1 DE 102008012922A1 DE 102008012922 A DE102008012922 A DE 102008012922A DE 102008012922 A DE102008012922 A DE 102008012922A DE 102008012922 A1 DE102008012922 A1 DE 102008012922A1
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- Germany
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- rotor
- angle sensor
- winding
- inductive angle
- stator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
- G01D5/225—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the mutual induction between the two coils
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Die Erfindung betrifft einen induktiven Winkelsensor gemäß dem Oberbegriff des Anspruchs 1The The invention relates to an inductive angle sensor according to the Preamble of claim 1
Solche Sensoren werden z. B. in Kraftfahrzeugen eingesetzt, um die Position von Stellgliedern zu bestimmen. Sie sind planar aufgebaut, wobei ein Stator eine Leiterkarte mit Erreger- und Empfängerspulen aufgebaut ist. Ein Rotor ist ober- und/oder unterhalb des Stators angeordnet. Eine Auswerteschaltung erlaubt die Ausgabe entsprechender Signale für die Winkelstellung.Such Sensors are z. B. used in motor vehicles to the position of actuators to determine. They are planar, with a stator a printed circuit board with exciter and receiver coils is constructed. A rotor is above and / or below the stator arranged. An evaluation circuit allows the output of appropriate Signals for the angular position.
Aus
der
Die
Die
Bei den bekannten induktiven Winkelsensoren besteht der Nachteil, dass außerhalb des Sensors relativ große, schmalbandige Störfeldstärken bei der Arbeitsfrequenz bestehen. Wegen des möglichen Einflusses auf andere elektronische Bauteile sind diese Störfelder unerwünscht. Eine Verminderung der Störfelder ist z. B. durch Abschirmung möglich; dies ist aber relativ aufwändig.at The known inductive angle sensors have the disadvantage that outside the sensor relatively large, narrowband Interference field strengths at the working frequency exist. Because of the possible influence on other electronic Components are these interference fields undesirable. A Reduction of the interference fields is z. B. by shielding possible; but this is relatively expensive.
Aufgabe der Erfindung ist es, Störfelder von Winkelsensoren mit geringem Aufwand auf unkritische Größen zu reduzieren.task The invention is with interference fields of angle sensors low cost to uncritical sizes.
Die Aufgabe ist durch die Merkmale des Anspruchs 1 gelöst. Das Erregerelement ist als Spule mit einer äußeren ersten Wicklung und einer darin beabstandet angeordneten, gegenläufigen zweiten Wicklung ausgebildet. Der Rotor umfasst eine kreisförmige Leiterbahn und an deren Außenumfang gleichmäßig beabstandete Leiterbahnen in Form von Kreisringsegmenten. Hierdurch werden zwei Effekte erzielt: Zum einen addieren sich im Bereich des Umfangs des Sensors die Nutzfelder zu einer Gesamterregung; daher können die Ströme insgesamt genutzt werden. Zum anderen subtrahieren sich außerhalb des Umfangs der Spule die unerwünschten elektromagnetischen Störfelder, so dass diese minimiert werden. Die Reduzierung beträgt in etwa 40 dB, was circa einem Hunderstel gegenüber dem Stand der Technik entspricht.The The object is solved by the features of claim 1. The excitation element is as a coil with an outer first winding and spaced therefrom, counter-rotating second winding formed. The rotor includes a circular Track and on its outer circumference evenly spaced conductor tracks in the form of circular ring segments. hereby Two effects are achieved: First, add up in the range the scope of the sensor, the payload fields to a total excitation; therefore, the streams can be used as a whole. On the other hand, subtract outside the scope of Coil the unwanted electromagnetic interference fields, so that they are minimized. The reduction is in about 40 dB, which is about one hundredth of a second State of the art corresponds.
Die Unteransprüche betreffen die vorteilhafte Ausgestaltung der Erfindung.The Subclaims relate to the advantageous embodiment the invention.
Spiralförmige Wicklungen sind besonders geeignet.spiral Windings are particularly suitable.
Wenn im Betrieb erzeugte Feldstärken der ersten und der zweiten Wicklung in etwa gleich groß sind, wird ein Optimum zwischen den Nutzfeldern und der Reduzierung der Störfelder erzielt. Entsprechendes gilt für den Rotor.If field strengths generated during operation of the first and second Winding in about the same size, is an optimum between achieved the payload fields and the reduction of the interference fields. The same applies to the rotor.
Wenn eine von dem Leiter eingeschlossene Fläche gleich der Summe der Flächen der Flügel ist, wird das Optimum zwischen den Nutzfeldern und der Reduzierung der Störfelder erzielt.If an area enclosed by the conductor is equal to the sum the area of the wings is the optimum between achieved the payload fields and the reduction of the interference fields.
Anhand der beigefügten schematischen Zeichnungen wird die Erfindung nachfolgend näher erläutert. Dabei zeigt:Based The accompanying schematic drawings illustrate the invention explained in more detail below. Showing:
Wie
aus der
Das
Erregerelement
Je
nach den Anforderungen an die Feldstärken können
mehrere parallele Wicklungen
Wie
aus der
Die
Dimensionierung des Rotors geschieht in der Weise, dass die von
dem Leiter (
Die
Leiterplatte
Der
Betrieb erfolgt wie aus dem Stand der Technik bekannt: Die Steuereinrichtung
erzeugt einen Wechselstrom mit einer Frequenz von circa vier Megahertz,
der durch das Erregerelement
Dies
ist in der
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004027954 A1 [0003] DE 102004027954 A1 [0003]
- - DE 10156238 A1 [0004] - DE 10156238 A1 [0004]
- - DE 10121870 A1 [0005] - DE 10121870 A1 [0005]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008012922.4A DE102008012922B4 (en) | 2008-03-06 | 2008-03-06 | Inductive angle sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008012922.4A DE102008012922B4 (en) | 2008-03-06 | 2008-03-06 | Inductive angle sensor |
Publications (2)
Publication Number | Publication Date |
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DE102008012922A1 true DE102008012922A1 (en) | 2009-09-10 |
DE102008012922B4 DE102008012922B4 (en) | 2019-05-29 |
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Application Number | Title | Priority Date | Filing Date |
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DE102008012922.4A Active DE102008012922B4 (en) | 2008-03-06 | 2008-03-06 | Inductive angle sensor |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014146628A1 (en) | 2013-03-20 | 2014-09-25 | Schaeffler Technologies Gmbh & Co. Kg | Method and angle sensor for contactless measurement of an angle |
CN104217836A (en) * | 2014-09-04 | 2014-12-17 | 天津大学 | Coil structure of angle transducer based on electromagnetic induction |
DE102015216479A1 (en) | 2015-08-28 | 2017-03-02 | Robert Bosch Gmbh | Method and apparatus for determining a sensor coil inductance |
WO2017148917A1 (en) * | 2016-02-29 | 2017-09-08 | Robert Bosch Gmbh | Rotational angle sensor |
WO2018001711A1 (en) * | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | Coil assembly and corresponding measuring assembly |
US20210372823A1 (en) * | 2018-05-29 | 2021-12-02 | ABX Elektronik GMBH | Rotary Position Sensing Apparatus and Method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19738836A1 (en) * | 1997-09-05 | 1999-03-11 | Hella Kg Hueck & Co | Inductive angle sensor |
DE10121870A1 (en) | 2001-05-05 | 2002-11-14 | Hella Kg Hueck & Co | Planar inductive angle sensor for measurement of the angular position of rotating components has a double rotor with section placed above and below the stator card to increase measurement sensitivity |
DE10156238A1 (en) | 2001-11-15 | 2003-06-05 | Hella Kg Hueck & Co Patente Ma | Inductive angle sensor, especially for a motor vehicle |
EP1078226B1 (en) * | 1998-05-22 | 2003-10-22 | Synaptics (UK) Limited | Position sensor |
EP1020018B1 (en) * | 1997-10-02 | 2004-04-14 | Synaptics (UK) Limited | Motor control system and method |
DE102004027954A1 (en) | 2004-06-08 | 2005-12-29 | Hella Kgaa Hueck & Co. | Inductive angle measurement sensor, e.g. for measuring the torsion angle of a steering column, has inductively coupled rotors mounted at a distance from each other on a torsion bar |
-
2008
- 2008-03-06 DE DE102008012922.4A patent/DE102008012922B4/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19738836A1 (en) * | 1997-09-05 | 1999-03-11 | Hella Kg Hueck & Co | Inductive angle sensor |
EP1020018B1 (en) * | 1997-10-02 | 2004-04-14 | Synaptics (UK) Limited | Motor control system and method |
EP1078226B1 (en) * | 1998-05-22 | 2003-10-22 | Synaptics (UK) Limited | Position sensor |
DE10121870A1 (en) | 2001-05-05 | 2002-11-14 | Hella Kg Hueck & Co | Planar inductive angle sensor for measurement of the angular position of rotating components has a double rotor with section placed above and below the stator card to increase measurement sensitivity |
DE10156238A1 (en) | 2001-11-15 | 2003-06-05 | Hella Kg Hueck & Co Patente Ma | Inductive angle sensor, especially for a motor vehicle |
DE102004027954A1 (en) | 2004-06-08 | 2005-12-29 | Hella Kgaa Hueck & Co. | Inductive angle measurement sensor, e.g. for measuring the torsion angle of a steering column, has inductively coupled rotors mounted at a distance from each other on a torsion bar |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9891076B2 (en) | 2013-03-20 | 2018-02-13 | Schaeffler Technologies AG & Co. KG | Method and angle sensor for contactless measurement of an angle |
DE102013204871A1 (en) | 2013-03-20 | 2014-10-09 | Schaeffler Technologies Gmbh & Co. Kg | Method and angle sensor for contactless measurement of an angle |
CN105164501A (en) * | 2013-03-20 | 2015-12-16 | 舍弗勒技术股份两合公司 | Method and angle sensor for contactless measurement of an angle |
CN105164501B (en) * | 2013-03-20 | 2017-07-07 | 舍弗勒技术股份两合公司 | For the method and angular transducer of Contactless Measurement measuring angle |
WO2014146628A1 (en) | 2013-03-20 | 2014-09-25 | Schaeffler Technologies Gmbh & Co. Kg | Method and angle sensor for contactless measurement of an angle |
CN104217836A (en) * | 2014-09-04 | 2014-12-17 | 天津大学 | Coil structure of angle transducer based on electromagnetic induction |
DE102015216479A1 (en) | 2015-08-28 | 2017-03-02 | Robert Bosch Gmbh | Method and apparatus for determining a sensor coil inductance |
WO2017036626A1 (en) | 2015-08-28 | 2017-03-09 | Robert Bosch Gmbh | Method and device for determining a sensor coil inductance |
US11143681B2 (en) | 2015-08-28 | 2021-10-12 | Robert Bosch Gmbh | Method and device for determining a sensor coil inductance |
JP2019507348A (en) * | 2016-02-29 | 2019-03-14 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングRobert Bosch Gmbh | Rotation angle sensor |
CN108700433A (en) * | 2016-02-29 | 2018-10-23 | 罗伯特·博世有限公司 | Angular sensor |
DE102016203234B4 (en) * | 2016-02-29 | 2021-02-11 | Robert Bosch Gmbh | Rotation angle sensor |
WO2017148917A1 (en) * | 2016-02-29 | 2017-09-08 | Robert Bosch Gmbh | Rotational angle sensor |
US11150111B2 (en) | 2016-02-29 | 2021-10-19 | Robert Bosch Gmbh | Rotational angle sensor |
DE102016211981A1 (en) | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | Coil arrangement and associated measuring arrangement |
WO2018001711A1 (en) * | 2016-06-30 | 2018-01-04 | Robert Bosch Gmbh | Coil assembly and corresponding measuring assembly |
US11268832B2 (en) | 2016-06-30 | 2022-03-08 | Robert Bosch Gmbh | Coil assembly and corresponding measuring assembly |
US20210372823A1 (en) * | 2018-05-29 | 2021-12-02 | ABX Elektronik GMBH | Rotary Position Sensing Apparatus and Method |
US11698275B2 (en) * | 2018-05-29 | 2023-07-11 | Kyocera Avx Components (Werne) Gmbh | Rotary position sensing apparatus and method |
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DE102008012922B4 (en) | 2019-05-29 |
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