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1. (WO2018002231) ROTATION-ANGLE SENSOR, STATOR ELEMENT AND ROTOR ELEMENT FOR SAME
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/002231 International Application No.: PCT/EP2017/066149
Publication Date: 04.01.2018 International Filing Date: 29.06.2017
IPC:
G01D 5/20 (2006.01) ,G01B 7/30 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
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
12
using electric or magnetic means
14
influencing the magnitude of a current or voltage
20
by varying inductance, e.g. by a movable armature
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7
Measuring arrangements characterised by the use of electric or magnetic means
30
for measuring angles or tapers; for testing the alignment of axes
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
UTERMOEHLEN, Fabian; DE
MERZ, Andreas; DE
Priority Data:
10 2016 211 832.330.06.2016DE
Title (DE) DREHWINKELSENSOR, STATORELEMENT SOWIE ROTORELEMENT FÜR DIESEN
(EN) ROTATION-ANGLE SENSOR, STATOR ELEMENT AND ROTOR ELEMENT FOR SAME
(FR) CAPTEUR D'ANGLE DE ROTATION, ÉLÉMENT STATOR ET ÉLÉMENT ROTOR POUR CE DERNIER
Abstract:
(DE) Die Erfindung betrifft einen Drehwinkelsensor(10), umfassendein Statorelement (12),ein bezüglich des Statorelements (12) um eine Drehachse (A) drehbar gelagertes Rotorelement (14), wobei der Drehwinkel durch eine induktive Kopplung zwischen dem Rotorelement (14) und dem Statorelement (12) erfassbar ist. Dabei ist vorgesehen, dass am Statorelement (12) mindestens ein Kompensationselement angeordnet ist, wobei das mindestens eine Kompensationselement mindestens eine Kompensations-Sendespule (22, 28) zur Aussendung eines elektromagnetischen Kompensations-Wechselfeldes und mindestens eine Kompensations-Empfangsspule (30) zum Empfangen elektromagnetischer Wechselfelder umfasst. Dabei weist das Rotorelement (14) mindestens einen ersten elektrisch leitenden Abschnitt (32) auf. Dabei ist der mindestens eine erste elektrisch leitende Abschnitt (32) am Rotorelement (14) derart angeordnet und derart mit der mindestens einen Kompensations-Sendespule (22, 28) und der mindestens einen Kompensations-Empfangsspule (30) des Kompensationselements induktiv gekoppelt, dass bei Aussenden des elektromagnetischen Kompensations-Wechselfelds durch die mindestens eine Kompensations-Sendespule (22, 28) eine in der mindestens einen Kompensations-Empfangsspule (30) induzierte Kompensations-Wechselspannung überwiegend von einer relativen radialen Anordnungdes Statorelements (12) und des Rotorelements (14) zueinander bezüglich der Drehachse (A) abhängig ist.
(EN) The invention relates to a rotation-angle sensor (10) comprising a stator element (12), a rotor element (14) mounted to rotate relative to the stator element (12) about an axis of rotation (A), the rotation angle being detectable by means of an inductive coupling between the rotor element (14) and the stator element (12). According to the invention, at least one compensation element is located on the stator element (12) and said at least one compensation element has at least one compensation transmitter coil (22, 28) for emitting an electromagnetic compensation alternating field and at least one compensation receiver coil (30) for receiving electromagnetic alternating fields. The rotor element (14) has at least one first electrically conductive portion (32). The at least one first electrically conductive portion (32) is both located on the rotor element (14) and inductively coupled to the at least one compensation transmitter coil (22, 28) and the at least one compensation receiver coil (30) such that when the at least one compensation transmitter coil (22, 28) emits the electromagnetic compensation alternating field, an alternating voltage induced in the at least one compensation receiver coil (30) is primarily dependent on a relative mutual radial location of the stator element (12) and the rotor element (14) with respect to the axis of rotation (A).
(FR) L'invention concerne un capteur d'angle de rotation (10), comprenant un élément stator (12), un élément rotor (14) monté de manière à pouvoir tourner autour d'un axe de rotation (A) par rapport à l'élément stator (12), l'angle de rotation pouvant être détecté au moyen d'un couplage inductif entre l'élément rotor (14) et l'élément stator (12). Selon l'invention, au moins un élément de compensation est agencé sur l'élément stator (12), l'élément ou les éléments de compensation comprenant au moins une bobine d'émission de compensation (22, 28) pour l'émission d'un champ alternatif de compensation électromagnétique et au moins une bobine de réception de compensation (30) pour la réception de champs alternatifs électromagnétiques. L'élément rotor (14) comprend au moins une première partie électro-conductrice (32). La ou les premières parties électro-conductrices (32) sont agencées sur l'élément rotor (14) et couplées de manière inductive à la ou aux bobines d'émission de compensation (22, 28) et à la ou aux bobines de réception de compensation (30) de l'élément de compensation de telle manière que, à l'émission du champ alternatif de compensation électromagnétique par la ou les bobines d'émission de compensation (22, 28), une tension alternative de compensation induite dans la ou les bobines de réception de compensation (30) dépend principalement d'un agencement radial relatif de l'élément stator (12) et de l'élément rotor (14) l'un par rapport à l'autre et par rapport à l'axe de rotation (A).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
CN109416262KR1020190021274EP3479071US20190186891