DE10121870A1 - 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 - Google Patents
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 sensitivityInfo
- Publication number
- DE10121870A1 DE10121870A1 DE2001121870 DE10121870A DE10121870A1 DE 10121870 A1 DE10121870 A1 DE 10121870A1 DE 2001121870 DE2001121870 DE 2001121870 DE 10121870 A DE10121870 A DE 10121870A DE 10121870 A1 DE10121870 A1 DE 10121870A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- stator
- angle sensor
- double rotor
- angular position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001939 inductive effect Effects 0.000 title claims abstract description 7
- 230000035945 sensitivity Effects 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 title 2
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000011156 evaluation Methods 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- G01D5/204—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 by influencing the mutual induction between two or more coils
- G01D5/2086—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 by influencing the mutual induction between two or more coils by movement of two or more coils with respect to two or more other coils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Die Erfindung betrifft einen induktiven planar aufgebauter Winkelsensor gemäß des Oberbegriffs des Anspruches 1.The invention relates to an inductive planar constructed angle sensor according to the The preamble of claim 1.
Bei planar aufgebauten Winkelsensoren, bei denen der Stator durch eine Leiterkarte mit den Erreger- und Empfängerspulen ausgebildet ist, ist es üblich, den Rotor oberhalb oder unterhalb des Stators anzuordnen wie dies in der Fig. 2 schematisch dargestellt ist.In the case of planar angle sensors in which the stator is formed by a printed circuit board with the excitation and receiver coils, it is customary to arrange the rotor above or below the stator, as is shown schematically in FIG. 2.
Eine wichtige Größe bei diesem Aufbau ist der Luftspalt zwischen dem Stator und dem Rotor. Der Luftspalt beeinflußt die Stärke des empfangenen Signals und sollte für eine sichere Auswertung so dimensioniert sein, daß das empfangbare Signal deutlich über den Rauschgrenzen der auswertenden elektronischen Bauteile liegen. Für günstige Koppelverhältnisse zwischen dem Stator und dem Rotor, entsprechend einem großen Nutzsignal, muß der Luftspalt möglichst klein sein. Trotzdem muß eine Berührung der Leiterkarte mit dem Rotor sicher verhindert werden, um eine Beschädigungen von Leiterbahnen zu vermeiden. Besonders bei großem Axialspiel ergibt sich häufig ein Dilemma zwischen Abstand und Empfangssignalstärke. Beim Abstand muß der maximal mögliche Wert, und nicht der Nominalwert für die Abschätzung des Rauschens zugrunde gelegt werden.An important variable in this structure is the air gap between the stator and the rotor. The air gap affects the strength of the received signal and should be dimensioned for reliable evaluation so that the receivable signal are significantly above the noise limits of the evaluating electronic components. For favorable coupling conditions between the stator and the rotor, accordingly a large useful signal, the air gap must be as small as possible. Nevertheless, one must Touching the circuit board with the rotor can be prevented safely Avoid damaging conductor tracks. Especially with large axial play there is often a dilemma between distance and received signal strength. At the Distance must be the maximum possible value and not the nominal value for the Estimation of noise can be used.
Abhilfe bringt eine Vergrößerung der gesamten Sensorstruktur. Bei einer Verdopplung des Stator- und Rotordurchmessers kann bei gleichen Koppelverhältnissen auch die Dimensionierung des Luftspalts verdoppelt werden. Häufig ist jedoch für einen größeren Sensor nicht der erforderliche Platz vorhanden. Auch verteuert sich der Sensor mit steigenden Abmessungen drastisch. Doppelter Durchmesser bedeutet eine vierfache Fläche, was häufig nicht akzeptabel ist.This can be remedied by enlarging the entire sensor structure. At a Doubling the stator and rotor diameter can be the same Coupling ratios can also double the dimensioning of the air gap. However, the space required for a larger sensor is often not available. The sensor also becomes more expensive with increasing dimensions. double Diameter means four times the area, which is often not acceptable.
Der Erfindung liegt die Aufgabe zugrunde, bei einem gegebenen Sensordurchmesser die Signalstärke zu erhöhen und den Einfluß des Axialspiels des Rotors auf die Signalstärke zu verringern.The invention is based, with a given sensor diameter, the task to increase the signal strength and the influence of the axial play of the rotor on the Decrease signal strength.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Rotor als ein aus zwei Abschnitten bestehender Doppelrotor ausgebildet ist, von denen jeweils ein Abschnitt gegenüber jeweils einer Seite des Stators angeordnet ist.This object is achieved in that the rotor as one of two Sections of existing double rotor is formed, each of which a section is arranged opposite one side of the stator.
Im folgenden soll ein Ausführungsbeispiel eines erfindungsgemäß aufgebauten Winkelsensors anhand der Zeichnung dargestellt und näher erläutert werden.In the following, an embodiment of a structure constructed according to the invention is intended Angle sensor shown in the drawing and explained in more detail.
Es zeigen:Show it:
Fig. 1 den Doppelrotor eines erfindungsgemäß ausgestalteten induktiven Winkelsensors, Fig. 1 shows the dual rotor of an inventively designed inductive angle sensor,
Fig. 2 einen Winkelsensor mit einem Rotor nach dem Stand der Technik, Fig. 2 shows an angle sensor having a rotor according to the prior art,
Fig. 3 einen Doppelrotor mit einem speziell ausgebildeten Stator, Fig. 3 shows a double rotor with a specially trained stator,
Fig. 4 eine Diagrammdarstellung des Verlaufs der Signalamplituden in Abhängigkeit der Position der Rotoren relativ zum Stator, Fig. 4 is a diagrammatic representation of the characteristic of the signal amplitudes in dependence of the position of the rotor relative to the stator,
Fig. 5 die Umfangskontur für eine spezielle Ausgestaltung eines Doppelrotors. Fig. 5 shows the peripheral contour for a special embodiment of a double rotor.
Die Fig. 1 zeigt eine mögliche Ausführung des Doppelrotors (8) eines erfindungsgemäßen Winkelsensors, welcher aus zwei identisch aufgebauten Abschnitten (9, 10) besteht. Beide Abschnitte (9, 10) dieses Doppelrotors sind mechanisch fest miteinander verbunden und in gleicher Phase zum gewählten Meßwinkel. Sie sind vorzugsweise identisch strukturiert und parallel zueinander und zum Stator angeordnet. Fig. 1 shows a possible embodiment of the double rotor ( 8 ) of an angle sensor according to the invention, which consists of two identically constructed sections ( 9 , 10 ). Both sections ( 9 , 10 ) of this double rotor are mechanically firmly connected to each other and in the same phase to the selected measuring angle. They are preferably structured identically and arranged parallel to one another and to the stator.
Der in der Fig. 1 nicht dargestellte Stator kann, entsprechend der in der Fig. 2 gezeigten bekannten Ausführung, sich unterhalb und oberhalb der gesamten Flächen der Rotoren erstrecken. Der Stator (6) kann aber auch, wie in der Fig. 3 dargestellt, auch nur zwischen Teilabschnitten des Doppelrotors (8) angeordnet sein, wobei die Geometrie der Spulenanordnung (5) auf dem Stator kreissegmentförmig ausgebildet ist.The stator, not shown in FIG. 1, can, in accordance with the known embodiment shown in FIG. 2, extend below and above the entire surfaces of the rotors. However, as shown in FIG. 3, the stator ( 6 ) can also be arranged only between partial sections of the double rotor ( 8 ), the geometry of the coil arrangement ( 5 ) on the stator being designed in the form of a segment of a circle.
Hierdurch überlagern und addieren sich die resultierenden Felder. Bei gleichem Abstand der beiden Abschnitte des Doppelrotors, die im folgenden auch einfach als Rotoren bezeichnet werden, zum Stator verdoppelt sich somit das Nutzsignal. Bei ungleichem Abstand dominiert der Rotor, welcher den geringeren Abstand zum Stator hat.This overlaps and adds the resulting fields. With the same Distance between the two sections of the double rotor, which is also simply referred to below Rotors are called, the useful signal is doubled to the stator. at unequal distance dominates the rotor, which is the smaller distance to Has stator.
In der Fig. 4 ist der Zusammenhang zwischen Signalstärke und Abstand (Luftspalt) prinzipiell dargestellt. Aufgetragen sind die Beiträge der einzelnen Rotoren des Doppelrotors zur Signalamplitude des Winkelsensors, sowie auch das resultierende Summensignal, aufgetragen gegen die axiale Position des Rotors relativ zum Stator. Bei der in der Mitte des Diagramms dargestellten Position sind beide Rotoren gleich weit von der Statorebene entfernt; entsprechend liefern beide Rotoren eine gleichgroße Signalamplitude. Bei Annäherung eines Rotors an den Stator steigt dessen Beitrag zur Signalamplitude an; der Beitrag des anderen Rotors verringert sich entsprechend.The relationship between signal strength and distance (air gap) is shown in principle in FIG. 4. The contributions of the individual rotors of the double rotor to the signal amplitude of the angle sensor, as well as the resulting sum signal, are plotted against the axial position of the rotor relative to the stator. In the position shown in the middle of the diagram, both rotors are equidistant from the stator plane; accordingly, both rotors deliver an equally large signal amplitude. When a rotor approaches the stator, its contribution to the signal amplitude increases; the contribution of the other rotor is reduced accordingly.
Ab einem gewissen Abstand wird dabei der Amplitudenbeitrag des abstandsgrößeren Rotors so gering, daß er die Auswertegrenze unterschreitet, unterhalb derer eine Signalauswertung nicht mehr möglich ist. Diese Auswertegrenze wird insbesondere durch die Rauschgrenzen der auswertenden elektronischen Bauteilen bestimmt. Ein Winkelsensor, der einen Rotor entsprechend dem Stand der Technik aufweist, wie er in der Fig. 2 dargestellt ist, liefert somit bei einem Luftspalt dieser Größe keine auswertbaren Signale mehr. From a certain distance, the amplitude contribution of the larger rotor becomes so small that it falls below the evaluation limit below which signal evaluation is no longer possible. This evaluation limit is determined in particular by the noise limits of the evaluating electronic components. An angle sensor, which has a rotor according to the prior art, as shown in FIG. 2, therefore no longer provides signals that can be evaluated in the case of an air gap of this size.
Die durch den Doppelrotor bewirkte Signalamplitude ergibt sich demgegenüber als ein Summensignal aus den Beiträgen beider Rotoren. Dieses Summensignal zeichnet sich gegenüber den Einzelbeiträgen durch einen größeren Betrag aus, der vorteilhafterweise in keiner axialen Position relativ zum Stator die Auswertegrenze unterschreitet. Im Gegenteil ist gerade in den für einen Winkelsensor mit Einfachrotor kritischen Bereichen die resultierende Signalamplitude bei einem Doppelrotor besonders groß. Besonders vorteilhaft ist zudem, daß die Signalamplitude insgesamt weniger in Abhängigkeit von der axialen Rotorposition variiert.In contrast, the signal amplitude caused by the double rotor results as a sum signal from the contributions of both rotors. This sum signal is distinguished from the individual contributions by a larger amount, the advantageously, the evaluation limit in no axial position relative to the stator below. On the contrary, it is the one for an angle sensor with a single rotor critical areas the resulting signal amplitude in a double rotor extraordinary big. It is also particularly advantageous that the overall signal amplitude varies less depending on the axial rotor position.
Für die kostengünstige Herstellung des Doppelrotors gibt es verschiedene Möglichkeiten. So kann der Doppelrotor aus zwei identischen Einzelrotoren aufgebaut sein. Diese sind kostengünstig zum Beispiel als Tiefziehteile herzustellen. Vorteilhaft an einer solchen Ausführung ist, daß hierdurch eine sogenannte aufbauende Montage des Winkelsensors möglich ist, indem die Rotoren von den beiden Seiten der Statorleiterplatte aus zusammengefügt werden.There are various ways of producing the double rotor at low cost Possibilities. So the double rotor can consist of two identical single rotors be constructed. These are inexpensive to manufacture, for example, as deep-drawn parts. An advantage of such an embodiment is that it results in a so-called constructive mounting of the angle sensor is possible by the rotors of the be joined together on both sides of the stator circuit board.
Alternativ dazu kann der Doppelrotor als ein ebenes Stanzteil ausgebildet sein. Nach dem Stanzen ist durch einen Biegevorgang die endgültige Form herzustellen. Dabei ist eine Struktur zur Anpassung an das zu sensierende Element durch eine formschlüssige Verbindung von zwei verschiedenen Bereichen des Stanzteiles herzustellen. Bei Bedarf sind eine oder mehrere zusätzliche Punktschweißungen an der Verbindungsstelle durchzuführen, um optimale Sicherheit vor vorzeitiger Trennung der Verbindung zu erzielen.Alternatively, the double rotor can be designed as a flat stamped part. To the final shape is to be produced by a bending process. there is a structure for adaptation to the element to be sensed by a positive connection of two different areas of the stamped part manufacture. If necessary, one or more additional spot welds are on the junction to perform optimal security against premature To achieve disconnection.
Der Doppelrotor wird üblicherweise mittels einer Übergangs- oder Preßpassung auf einer Betätigungswelle aufgebracht. Bei Stanzbiegeteilen oder bei Tiefziehteilen ergeben sich hierbei Schwierigkeiten, die notwendigen Toleranzen für eine feste Verbindung einzuhalten. Eine wesentliche Erleichterung ergibt sich hierbei, wenn der Umfang des Doppelrotors, der mit einer Betätigungswelle verbunden ist, eine abgerundeten Vieleckskontur (12) aufweist. The double rotor is usually applied to an actuating shaft by means of a transition or press fit. In the case of stamped and bent parts or deep-drawn parts, there are difficulties in complying with the necessary tolerances for a firm connection. A significant relief is obtained if the circumference of the double rotor, which is connected to an actuating shaft, has a rounded polygonal contour ( 12 ).
Die Vieleckskontur (12) eines Stanz-Biegerotors, hier beispielhaft mit einer Dreieckskontur, und die Umfangskontur (11) der Betätigungswelle zeigt schematisch die Fig. 5. Damit ist eine Preßpassung mit geringen Fügekräften realisierbar, denn auch schon bei geringeren Durchmessern als dem endgültigen Fügemaß ist eine Preßpassung an den drei Berührstellen realisierbar. Die endgültige Form wird durch den Umfang der Welle und die innere Länge des zu montierenden Teiles festgelegt. Toleranzen der Wellendurchmesser führen nur zu Abweichungen der Rundheit des montierten Rotors.The polygonal contour ( 12 ) of a stamping and bending rotor, here with a triangular contour as an example, and the circumferential contour ( 11 ) of the actuating shaft are shown schematically in FIG. 5 a press fit can be realized at the three contact points. The final shape is determined by the circumference of the shaft and the inner length of the part to be assembled. Tolerances of the shaft diameter only lead to deviations in the roundness of the assembled rotor.
Bei einem Stanzbiegeteil ist die Verbindungsstelle idealerweise in der Nähe der "Rundung des Dreiecks" anzubringen, weil hierdurch eine Wahl der Radien die spätere Verbiegung einstellbar und damit minimierbar ist. Dieses Verfahren ist prinzipiell auch bei einer nichtkreisförmigen Umfangskontur (11) der Betätigungswelle anwendbar. In the case of a stamped and bent part, the connection point is ideally to be located in the vicinity of the "rounding of the triangle", because this enables a selection of the radii to be used to set and subsequently minimize the bending. In principle, this method can also be used with a non-circular peripheral contour ( 11 ) of the actuating shaft.
11
, .
66
Stator
stator
22
Erregerspule
excitation coil
33
Empfangsspulen
receiving coils
44
Rotor
rotor
55
Spulenanordnung
coil assembly
77
Ausnehmung
recess
88th
Doppelrotor
double rotor
99
Erster Abschnitt
first section
1010
Zweiter Abschnitt
second part
1111
Umfangskontur (der Betätigungswelle)
Circumferential contour (of the actuating shaft)
1212
Vieleckskontur
Vieleckskontur
Claims (5)
mit einem Stator (1, 6), der eine mit einer periodischen Wechselspannung beaufschlagte Erregerspule (2), sowie mehrere Empfangsspulen (3) aufweist,
und einem Rotor (4), der die Stärke der induktiven Kopplung zwischen Erregerspule (2) und Empfangsspulen (3) in Abhängigkeit seiner Winkelposition relativ zum Stator (1) vorgibt,
und einer Auswerteschaltung zur Bestimmung der Winkelposition des Rotors (4) relativ zum Stator (1, 6) aus den in den Empfangsspulen (3) induzierten Spannungssignalen,
dadurch gekennzeichnet,
daß der Rotor als ein aus zwei Abschnitten (9, 10) bestehender Doppelrotor (8) ausgebildet ist, von denen jeweils ein Abschnitt gegenüber jeweils einer Seite des Stators (6) angeordnet ist.1. Inductive, planar angle sensor
with a stator ( 1 , 6 ) which has an excitation coil ( 2 ) to which a periodic alternating voltage is applied, and a plurality of receiving coils ( 3 ),
and a rotor ( 4 ) which specifies the strength of the inductive coupling between the excitation coil ( 2 ) and the receiving coil ( 3 ) as a function of its angular position relative to the stator ( 1 ),
and an evaluation circuit for determining the angular position of the rotor ( 4 ) relative to the stator ( 1 , 6 ) from the voltage signals induced in the receiving coils ( 3 ),
characterized by
that the rotor is designed as a double rotor ( 8 ) consisting of two sections ( 9 , 10 ), one section of which is arranged opposite each side of the stator ( 6 ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001121870 DE10121870B4 (en) | 2001-05-05 | 2001-05-05 | Inductive planar built-up angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001121870 DE10121870B4 (en) | 2001-05-05 | 2001-05-05 | Inductive planar built-up angle sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE10121870A1 true DE10121870A1 (en) | 2002-11-14 |
| DE10121870B4 DE10121870B4 (en) | 2007-09-20 |
Family
ID=7683724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2001121870 Expired - Fee Related DE10121870B4 (en) | 2001-05-05 | 2001-05-05 | Inductive planar built-up angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10121870B4 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20313045U1 (en) | 2003-08-23 | 2003-10-23 | Hella KG Hueck & Co., 59557 Lippstadt | Rotor for inductive sensor, e.g. for angle sensor, has similar rotor structures, isolated from each other and arranged on each side of carrier such as circuit board |
| GB2436620A (en) * | 2006-03-25 | 2007-10-03 | Sagentia Ltd | Inductive Position Encoder |
| DE102008012922A1 (en) | 2008-03-06 | 2009-09-10 | Hella Kgaa Hueck & Co. | 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 |
| FR2947048A1 (en) * | 2009-06-23 | 2010-12-24 | Electricifil Automotive | ANGULAR POSITION SENSOR. |
| DE102010009497A1 (en) | 2010-02-26 | 2011-09-01 | Hella Kgaa Hueck & Co. | Sensor for determining rotational angle of shaft for rotor mounted in e.g. motor car, has fixing element arranged so as to fix rotor to cabinet so that rotating movement of rotor is not enabled in shaft mounted state |
| CN101363710B (en) * | 2007-08-07 | 2012-09-05 | 罗伯特·博世有限公司 | Measuring device for measuring the relative rotation position between two bodies without touch |
| DE102016217255A1 (en) | 2016-09-09 | 2018-03-15 | Robert Bosch Gmbh | Angle of rotation sensor and stator for this |
| DE102018202226A1 (en) | 2018-02-14 | 2019-08-14 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one steering information |
| WO2021052657A1 (en) | 2019-09-18 | 2021-03-25 | Robert Bosch Gmbh | Steering device with a discharge structure for discharging an electrostatic charge |
| DE102020110666A1 (en) | 2020-04-20 | 2021-10-21 | Schaeffler Technologies AG & Co. KG | Sensor arrangement for detecting a torque and an angular position |
| WO2022228770A1 (en) | 2021-04-28 | 2022-11-03 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one item of steering information |
| WO2024121232A1 (en) * | 2022-12-08 | 2024-06-13 | Sc2N | Coupling element for an improved position sensor |
| US12441401B2 (en) | 2021-04-28 | 2025-10-14 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one item of steering information |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022214231B4 (en) * | 2022-12-21 | 2024-11-14 | Swoboda Schorndorf KG | Sensor wheel for an inductive angle sensor, inductive angle sensor with such a sensor wheel and system with an inductive angle sensor |
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| DE4224225A1 (en) * | 1992-07-22 | 1994-01-27 | Walter Dr Mehnert | Circuit arrangement for an inductive position transmitter |
| DE4440295A1 (en) * | 1994-11-11 | 1996-05-15 | Vdo Schindling | Induction sensor for determining rpm in antilock system |
| DE19502367C2 (en) * | 1995-01-26 | 1998-04-30 | Freudenberg Carl Fa | Sensor ring |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20313045U1 (en) | 2003-08-23 | 2003-10-23 | Hella KG Hueck & Co., 59557 Lippstadt | Rotor for inductive sensor, e.g. for angle sensor, has similar rotor structures, isolated from each other and arranged on each side of carrier such as circuit board |
| US8129985B2 (en) | 2006-03-25 | 2012-03-06 | Sagentia Limited | Position encoder |
| GB2436620A (en) * | 2006-03-25 | 2007-10-03 | Sagentia Ltd | Inductive Position Encoder |
| GB2436620B (en) * | 2006-03-25 | 2009-03-25 | Sagentia Ltd | Position encoder |
| CN101363710B (en) * | 2007-08-07 | 2012-09-05 | 罗伯特·博世有限公司 | Measuring device for measuring the relative rotation position between two bodies without touch |
| DE102008012922A1 (en) | 2008-03-06 | 2009-09-10 | Hella Kgaa Hueck & Co. | 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 |
| DE102008012922B4 (en) | 2008-03-06 | 2019-05-29 | HELLA GmbH & Co. KGaA | Inductive angle sensor |
| WO2010149910A3 (en) * | 2009-06-23 | 2011-04-21 | Electricfil Automotive | Angular position sensor |
| FR2947048A1 (en) * | 2009-06-23 | 2010-12-24 | Electricifil Automotive | ANGULAR POSITION SENSOR. |
| DE102010009497A1 (en) | 2010-02-26 | 2011-09-01 | Hella Kgaa Hueck & Co. | Sensor for determining rotational angle of shaft for rotor mounted in e.g. motor car, has fixing element arranged so as to fix rotor to cabinet so that rotating movement of rotor is not enabled in shaft mounted state |
| DE102010009497B4 (en) | 2010-02-26 | 2024-06-06 | HELLA GmbH & Co. KGaA | Rotation sensor |
| DE102016217255A1 (en) | 2016-09-09 | 2018-03-15 | Robert Bosch Gmbh | Angle of rotation sensor and stator for this |
| US10955262B2 (en) | 2016-09-09 | 2021-03-23 | Robert Bosch Gmbh | Rotation angle sensor for a stator |
| DE102018202226B4 (en) | 2018-02-14 | 2022-05-12 | Robert Bosch Gmbh | Steering device with a steering sensor unit for the inductive detection of at least one item of steering information |
| DE102018202226A1 (en) | 2018-02-14 | 2019-08-14 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one steering information |
| WO2019158296A1 (en) | 2018-02-14 | 2019-08-22 | Robert Bosch Gmbh | Steering device comprising a steering sensor unit for inductive detection of at least one piece of steering information |
| WO2021052657A1 (en) | 2019-09-18 | 2021-03-25 | Robert Bosch Gmbh | Steering device with a discharge structure for discharging an electrostatic charge |
| DE102020110666A1 (en) | 2020-04-20 | 2021-10-21 | Schaeffler Technologies AG & Co. KG | Sensor arrangement for detecting a torque and an angular position |
| WO2022228770A1 (en) | 2021-04-28 | 2022-11-03 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one item of steering information |
| DE102021204232A1 (en) | 2021-04-28 | 2022-11-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Steering device with a steering sensor unit for the inductive detection of at least one item of steering information |
| US12441401B2 (en) | 2021-04-28 | 2025-10-14 | Robert Bosch Gmbh | Steering device with a steering sensor unit for inductive detection of at least one item of steering information |
| WO2024121232A1 (en) * | 2022-12-08 | 2024-06-13 | Sc2N | Coupling element for an improved position sensor |
| FR3143109A1 (en) * | 2022-12-08 | 2024-06-14 | Sc2N | Coupling element for improved position sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10121870B4 (en) | 2007-09-20 |
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Owner name: HELLA KGAA HUECK & CO., 59557 LIPPSTADT, DE |
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| 8364 | No opposition during term of opposition | ||
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Owner name: HELLA GMBH & CO. KGAA, DE Free format text: FORMER OWNER: HELLA KGAA HUECK & CO., 59557 LIPPSTADT, DE |
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