WO2011085833A2 - Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles - Google Patents

Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles Download PDF

Info

Publication number
WO2011085833A2
WO2011085833A2 PCT/EP2010/065925 EP2010065925W WO2011085833A2 WO 2011085833 A2 WO2011085833 A2 WO 2011085833A2 EP 2010065925 W EP2010065925 W EP 2010065925W WO 2011085833 A2 WO2011085833 A2 WO 2011085833A2
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
field sensor
magnet
sensor arrangement
arrangement according
Prior art date
Application number
PCT/EP2010/065925
Other languages
German (de)
English (en)
Other versions
WO2011085833A3 (fr
Inventor
Wolfgang Welsch
Michael Kleinknecht
Mathias Kimmerle
Klaus Walter
Juergen Kissner
Joerg Siedentopf
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to JP2012543543A priority Critical patent/JP5606550B2/ja
Priority to CN201080058122.6A priority patent/CN102686980B/zh
Priority to EP10768240A priority patent/EP2516967A2/fr
Publication of WO2011085833A2 publication Critical patent/WO2011085833A2/fr
Publication of WO2011085833A3 publication Critical patent/WO2011085833A3/fr

Links

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
    • G01D5/22—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
    • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils

Definitions

  • the invention relates to a magnetic field sensor arrangement for path detection on rotationally and / or linearly moved components, in which spatial components of a magnetic field change over the path to be detected and can be detected accordingly, according to the features of claim 1. that for example in speed and position sensors, as z.
  • a rotational movement or position change is detected by a rotation or the change in position corresponding change in a magnetic field.
  • magnetic sensors known per se are generally used, which depending on the application and field of application can be Hall sensors, AMR sensors, GMR sensors, TMR sensors or, in general, XMR sensors.
  • the invention is therefore based on a magnetic field sensor arrangement for detecting the position of moving components, in which spatial components of the magnetic field of a magnetic component or magnet system on the moving component change in their direction over the path to be detected on the magnetic component and thereby the relative position A sensor can be detected accordingly.
  • the magnetic field of the magnetic component is at a predetermined angle between the axial direction and radial alignment with the direction of movement of the moving component is aligned.
  • the angular range of the detectable magnetic field directions can be up to 200 ° in the course of the path detection.
  • a magnetized component on an actuating element for. B. in vehicle braking systems, be mounted that at least in a further axis in addition to a linear direction to be detected, usually rotatable or in any other degree of freedom moves.
  • the invention is also suitable for cramped installation situations in a motor vehicle and, on the other hand, can also be used outside of vehicle brake systems in a wide variety of applications.
  • sensors with an XMR effect or Hall sensors are used, each detecting the changing in the course of the linear movement or a movement in other degrees of freedom direction of the magnetic field.
  • the angle to the linear direction of movement of the component moved in rotation is advantageously in the range of 45 ° in a preferred exemplary embodiment.
  • the magnetic circuit has at least one magnetization direction which is different from the axis of the movement direction but is not perpendicular to the axis of the movement direction. Due to this so-called oblique direction of the magnetic field, a magnetic field is generated on the sensor, which has a relatively wide measuring range with regard to the detectable directional differences of the field lines.
  • the magnetic field directions of these magnets may also differ from one another.
  • this magnetic circuit is rotationally symmetrical and is thus rotatable about the axis of the direction of movement, but without causing a change in the direction of the magnetic field on the scanning sensor during the rotation.
  • the magnetic circuit for the magnetic field sensor according to the invention thus preferably also consists of at least one magnet which is rotatable about the axis of the linear direction of motion and generates a magnetic field which continuously and monotonously changes the magnetic field direction over the linear path to be measured.
  • the magnet system can be shorter than the measuring path.
  • a relatively short magnetic field sensor with a likewise relatively short magnet system can be realized, but a relatively long measuring path (magnetic field sensor and magnet system are shorter than the measuring path) for applications with limited space can be achieved. Nevertheless, the magnetic circuit described here produces a maximum detectable change in the magnetic field orientation over the measuring path.
  • the invention can be implemented with a flexible magnet system with regard to the number of magnets, the magnetization directions (individually or in combination) and permits use in different installation spaces, in different applications and with different measurement paths. Short description of the drawing
  • FIG. 1 shows a schematic representation of a so-called oblique magnetization of two individual magnets and a sensor scanning the magnetic field direction.
  • Figure 2 is a schematic representation of a so-called oblique magnetization of a single magnet and a magnetic field scanning sensor.
  • FIG. 3 shows an exemplary embodiment of an arrangement for measuring pedal travel in a motor vehicle with a magnetic field sensor arrangement according to the invention.
  • FIG. 4 shows a detailed view of a ring magnet of the magnetic field sensor arrangement according to FIG. 3.
  • a magnetic circuit shown schematically in FIG. 1 to explain the invention consists of two individual magnets 1 and 2 whose magnetic field lines 3 and 4, which are inclined here in the preferred direction, are shown schematically.
  • the magnetic field lines 3 or 4 intersect a magnetic-field-sensitive sensor 5 (here a field line 3 in the case shown), wherein it can be seen that the direction of the respective field lines 3 or 4 depends on which relative position the sensor 5 is on the linear path 6 of the magnetic circuit is currently located. If one now uses a sensor 5, for example an XMR sensor or a Hall sensor, whose output signal is currently dependent on the direction of the intersecting magnetic field lines 3 or 4, a relative position determination between the magnetic circuit with the magnets 1, 2 is with this basic arrangement and the sensor 5 possible.
  • FIG. 2 shows a further possibility of such a position determination with a single magnet 7 which is magnetized obliquely in the preferred direction and whose magnetic Field lines 8 here in the same way as in the figure 1 depending on the direction of the cutting magnetic field lines 8 allow a relative position determination between the magnet 7 and the sensor 5.
  • FIG. 3 shows an exemplary embodiment of a magnetic field sensor arrangement according to the invention, for example for the detection of pedal travel in a vehicle brake system, in which a sensor housing 10 accommodates a magnetic-field-sensitive sensor corresponding to the sensor 5 according to the previously described figures.
  • the magnetic circuit here has two ring magnets 11 and 12, which are rotatably movable on a rotational axis 13 and along the axis of rotation 13 linearly.
  • FIG. 4 shows, as a more detailed exemplary embodiment, the ring magnet 11 (or corresponding to FIG. 12), which is magnetized here in the preferred direction 14 at an angle, for example at 45 ° to the rotation axis 13 according to FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

L'invention concerne un agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles, dans lequel des composantes spatiales du champ magnétique d'un système magnétique sur le composant mobile varient dans leur direction sur la course (6) à déterminer, si bien que leurs positions peuvent être détectées de façon correspondante par rapport à un détecteur fixe (5). Le composant se déplaçant linéairement ainsi que selon un autre degré de liberté porte au moins un aimant (3, 4; 7; 11, 12; 14) intégré dans le système magnétique ou un composant magnétique quelconque dont la circonférence extérieure se trouve à une distance prédéterminée par rapport à au moins un capteur fixe (5) sensible à la direction du champ magnétique. La direction préférentielle du champ magnétique de l'aimant (3, 4; 7; 11, 12; 14) est orientée par rapport à la course (6) du composant mobile en formant un angle prédéterminé compris entre 0 et moins de 90 °.
PCT/EP2010/065925 2009-12-21 2010-10-22 Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles WO2011085833A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012543543A JP5606550B2 (ja) 2009-12-21 2010-10-22 可動な構成部材におけるストローク検出のための磁界センサ装置
CN201080058122.6A CN102686980B (zh) 2009-12-21 2010-10-22 用于检测运动元件位移的磁场传感器装置
EP10768240A EP2516967A2 (fr) 2009-12-21 2010-10-22 Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009055104.2 2009-12-21
DE200910055104 DE102009055104A1 (de) 2009-12-21 2009-12-21 Magnetfeldsensoranordnung zur Wegerfassung an beweglichen Bauteilen

Publications (2)

Publication Number Publication Date
WO2011085833A2 true WO2011085833A2 (fr) 2011-07-21
WO2011085833A3 WO2011085833A3 (fr) 2011-09-15

Family

ID=44149001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/065925 WO2011085833A2 (fr) 2009-12-21 2010-10-22 Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles

Country Status (5)

Country Link
EP (1) EP2516967A2 (fr)
JP (1) JP5606550B2 (fr)
CN (2) CN105509775B (fr)
DE (1) DE102009055104A1 (fr)
WO (1) WO2011085833A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013092522A (ja) * 2011-10-10 2013-05-16 Methode Electronics Inc 非接触型磁気線形位置センサー
JP2015525891A (ja) * 2012-08-22 2015-09-07 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 回転運動する構成部材の回転角度を検出するためのセンサ装置

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009055104A1 (de) * 2009-12-21 2011-06-22 Robert Bosch GmbH, 70469 Magnetfeldsensoranordnung zur Wegerfassung an beweglichen Bauteilen
DE102012220139A1 (de) 2012-11-06 2014-05-08 Robert Bosch Gmbh Magnetische Messanordnung und korrespondierende Sensoranordnung zur Bewegungserfassung eines bewegten Bauteils
KR101801536B1 (ko) 2013-05-13 2017-11-27 주식회사 만도 페달 스트로크 센서의 설치구조
JP5946796B2 (ja) * 2013-05-29 2016-07-06 ファナック株式会社 回転機械の回転を検出する回転検出器、および回転検出器を備えるシステム
CN104667427B (zh) * 2013-11-29 2019-02-01 上海联影医疗科技有限公司 多叶光栅的叶片位置监测装置、多叶光栅、放疗设备
DE102014205566A1 (de) 2014-03-26 2015-10-01 Robert Bosch Gmbh Sensoranordnung zur Wegerfassung an einem bewegten Bauteil
CN105526852B (zh) * 2014-09-30 2019-07-12 泰科电子(上海)有限公司 空挡倒挡位置感测传感器和系统
CN105270559A (zh) * 2014-10-22 2016-01-27 天津比沃科技有限公司 电动自行车变速机构的检测机构及电动自行车的变速方法
DE102014116115A1 (de) 2014-11-05 2016-05-12 Pierburg Gmbh Magnet-basiertes Messsystem zur Erfassung einer Bewegung und/oder Winkelposition eines Bauelements
DE102015205390A1 (de) 2015-03-25 2016-09-29 Robert Bosch Gmbh Sensoranordnung zur Drehzahlerfassung eines rotierenden Bauteils
CN105852872B (zh) 2016-03-25 2019-09-20 京东方科技集团股份有限公司 一种应用于关节处的传感器装置及假肢系统
CN107966982B (zh) * 2016-10-18 2021-02-09 苏州宝时得电动工具有限公司 碰撞触发装置以及割草机
DE102017222677A1 (de) * 2016-12-29 2018-07-05 Robert Bosch Gmbh Sensoreinrichtung
DE102017202365A1 (de) * 2017-02-15 2018-08-16 Robert Bosch Gmbh Sensoreinrichtung
DE102017206025A1 (de) * 2017-04-07 2018-10-11 Deutsches Zentrum für Luft- und Raumfahrt e.V. Magnetische Anordnung zur Erfassung von Relativbewegungen oder Relativpositionen
EP3428582B1 (fr) * 2017-07-11 2020-03-04 Sick Ag Capteur
DE102017222063A1 (de) * 2017-12-06 2019-06-06 Dr. Johannes Heidenhain Gmbh Induktive Positionsmesseinrichtung
DE102018220639A1 (de) * 2018-11-29 2020-06-04 TE Connectivity Sensors Germany GmbH Vorrichtung zur Messung einer Position eines entlang einer Bewegungsrichtung linear beweglichen Objekts, insbesondere Bremspedalsensor
DE102019112572A1 (de) * 2019-05-14 2020-11-19 HELLA GmbH & Co. KGaA Vorrichtung und Verfahren zur kontaktlosen Bestimmung einer Position eines Pedals
CN111163372A (zh) * 2019-12-28 2020-05-15 Oppo广东移动通信有限公司 网络设备
CN113587793B (zh) * 2020-04-30 2023-11-07 财团法人金属工业研究发展中心 扣件成型机的测量系统
CN112880539A (zh) * 2021-01-19 2021-06-01 天津中科华誉科技有限公司 一种非接触式位置检测装置
JP7444143B2 (ja) 2021-07-20 2024-03-06 Tdk株式会社 磁気センサ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997706B1 (fr) 1998-10-28 2002-08-07 Philips Corporate Intellectual Property GmbH Dispositif pour mesurer une position relative linéaire
DE19937206C2 (de) 1999-06-11 2003-05-08 Siemens Ag Positionsbestimmungseinrichtung sowie Verwendung einer Positionsbestimmungseinrichtung und Verfahren zum Herstellen eines Maßstabes für eine solche Einrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06258006A (ja) * 1993-03-02 1994-09-16 Seiko Epson Corp 変位センサ
WO1999067651A1 (fr) * 1998-06-22 1999-12-29 Koninklijke Philips Electronics N.V. Detecteur de position magnetique
EP1074818A3 (fr) * 1999-08-06 2001-10-31 Siemens Aktiengesellschaft Capteur de position
JP2001280908A (ja) * 2000-03-29 2001-10-10 Sony Precision Technology Inc 位置検出装置
US6577123B2 (en) * 2001-06-04 2003-06-10 Delphi Technologies, Inc. Linear position sensor assembly
US7166996B2 (en) * 2003-02-14 2007-01-23 Bei Sensors And Systems Company, Inc. Position sensor utilizing a linear hall-effect sensor
DE102004011809A1 (de) * 2004-03-11 2005-09-29 Robert Bosch Gmbh Magnetsensoranordnung
DE102004063539A1 (de) * 2004-03-11 2005-09-29 Robert Bosch Gmbh Magnetsensoranordnung
DE102004057909A1 (de) * 2004-11-30 2006-06-01 Bourns, Inc., Riverside Linearer Positionssensor
US8299782B2 (en) * 2005-04-19 2012-10-30 Panasonic Corporation Position sensor, optical head device, head moving mechanism, information recording and reproduction device and position control system
JP4787601B2 (ja) * 2005-11-08 2011-10-05 株式会社東海理化電機製作所 位置検出装置
FR2894023B1 (fr) * 2005-11-29 2008-02-22 Electricfil Automotive Soc Par Capteur magnetique de position pour un mobile ayant une course lineaire limitee
JP4831813B2 (ja) * 2006-01-30 2011-12-07 株式会社村上開明堂 位置検出装置および自動車用ミラーの鏡面角度検出装置
CN101563585B (zh) * 2006-12-21 2013-03-20 微-埃普西龙测量技术有限两合公司 被测物相对于传感器的位置和/或位置变化的测定方法及测定用的传感器装置
DE102009055104A1 (de) * 2009-12-21 2011-06-22 Robert Bosch GmbH, 70469 Magnetfeldsensoranordnung zur Wegerfassung an beweglichen Bauteilen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997706B1 (fr) 1998-10-28 2002-08-07 Philips Corporate Intellectual Property GmbH Dispositif pour mesurer une position relative linéaire
DE19937206C2 (de) 1999-06-11 2003-05-08 Siemens Ag Positionsbestimmungseinrichtung sowie Verwendung einer Positionsbestimmungseinrichtung und Verfahren zum Herstellen eines Maßstabes für eine solche Einrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013092522A (ja) * 2011-10-10 2013-05-16 Methode Electronics Inc 非接触型磁気線形位置センサー
JP2015525891A (ja) * 2012-08-22 2015-09-07 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 回転運動する構成部材の回転角度を検出するためのセンサ装置

Also Published As

Publication number Publication date
CN105509775B (zh) 2018-06-12
CN102686980A (zh) 2012-09-19
JP5606550B2 (ja) 2014-10-15
CN102686980B (zh) 2016-06-15
JP2013515234A (ja) 2013-05-02
DE102009055104A1 (de) 2011-06-22
WO2011085833A3 (fr) 2011-09-15
EP2516967A2 (fr) 2012-10-31
CN105509775A (zh) 2016-04-20

Similar Documents

Publication Publication Date Title
WO2011085833A2 (fr) Agencement de capteurs de champ magnétique pour la détermination des courses de composants mobiles
EP2888559B1 (fr) Ensemble capteur pour détecter des angles de rotation sur un élément mis en rotation
EP1656268A1 (fr) Articulation a rotule pourvue d'un capteur d'angle de pivotement
EP2748053B1 (fr) Capteur combiné visant le couple de braquage et l'angle de braquage
DE102013205901B4 (de) Schaltvorrichtung eines Fahrzeuggangräderwechselgetriebes
DE102017222676A1 (de) Wegsensor
WO2013186001A1 (fr) Bague magnétique d'un système de détection de position de rotor d'un moteur électrique électriquement commuté
WO2015144377A1 (fr) Agencement de capteur servant à détecter une trajectoire sur un composant mobile
EP2764340B1 (fr) Ensemble de detection
WO2008141860A1 (fr) Dispositif de détection sans contact de mouvements linéaires ou de mouvements de rotation
EP2101157A2 (fr) Capteur d'angle de rotation magnétique
EP2524193B1 (fr) Agencement redondante pour la détermination de l'angularité d'une partie pivotante
EP1131605B1 (fr) Dispositif de mesure sans contact d'un angle de rotation
DE102012221327A1 (de) Sensorvorrichtung zur Bestimmung mindestens einer Rotationseigenschaft eines rotierenden Elements
DE102013205071B4 (de) Schaltvorrichtung für ein Zahnräderwechselgetriebe eines Kraftfahrzeugs und Linearwälzlager mit einer Schaltvorrichtung
DE10228663A1 (de) Anordnung zum Bestimmen der Lage eines Körpers
EP1920219A1 (fr) Dispositif de detection
DE102018106438A1 (de) Sensoranordnung mit einem Multipolencoder sowie Rotationslager mit einer solchen Sensoranordnung
EP3583388A1 (fr) Dispositif de détection
EP1867956B1 (fr) Agrandissement de la distance active pour capteurs magnétiques à l'aide d'un champ de support
DE102007052978A1 (de) Anordnung zur Erfassung eines Drehwinkels
DE102011121870B4 (de) Magnetsensoranordnung
DE102017211996A1 (de) Sensoreinheit und Anordnung zur Erfassung der Position eines Bauteils
EP1756525A1 (fr) Dispositif de mesure magnetique d'angle et/ou de trajectoire
DE102013216425A1 (de) Sensoranordnung zur Erfassung von Drehwinkeln an einem rotierenden Bauteil in einem Fahrzeug

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080058122.6

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10768240

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010768240

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012543543

Country of ref document: JP