EP1809996A1 - Capteur de couple - Google Patents

Capteur de couple

Info

Publication number
EP1809996A1
EP1809996A1 EP05770950A EP05770950A EP1809996A1 EP 1809996 A1 EP1809996 A1 EP 1809996A1 EP 05770950 A EP05770950 A EP 05770950A EP 05770950 A EP05770950 A EP 05770950A EP 1809996 A1 EP1809996 A1 EP 1809996A1
Authority
EP
European Patent Office
Prior art keywords
housing
sensor
torque sensor
sensor unit
static
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.)
Withdrawn
Application number
EP05770950A
Other languages
German (de)
English (en)
Inventor
Dirk Rachui
Jerems Frank
Thom Jens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Schalter und Sensoren GmbH
Original Assignee
Valeo Schalter und Sensoren 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 Valeo Schalter und Sensoren GmbH filed Critical Valeo Schalter und Sensoren GmbH
Publication of EP1809996A1 publication Critical patent/EP1809996A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means

Definitions

  • the invention relates to a torque sensor with a housing, a rotatably mounted in the housing torsion device, a rotationally fixed with the
  • Torsion device associated dynamic sensor unit and a cooperating with the dynamic sensor unit static sensor unit.
  • a torque sensor which comprises a torsion device formed by a torsion bar. At one end of this torsion bar are two ferromagnetic wheels with axially projecting teeth and at the other end a ring magnet is provided, which are rotated against each other when torque is applied to the torsion device. This rotation is detected by a magnetically sensitive element, for example a Hall sensor. Both the ferromagnetic wheels, the ring magnet and the magnetic sensor are assembled into a unit which is pushed as a whole on the torsion and connected to this. It turned out that at one. Defective the complete unit must be replaced, even if only one electronic component fails. In addition, assembly tolerances adversely affect the measurement results, since the ferromagnetic wheels, the ring magnet and the sensor element are installed as a rigid, inflexible unit.
  • the invention has for its object to provide a torque sensor that is easier to maintain and is less sensitive to mounting tolerances.
  • the measured data are generated from the dynamic sensor unit and the static sensor unit, wherein the dynamic sensor unit attached to the torsion and the static sensor unit is not directly, ie rigidly connected to the housing, but via a decoupling device elastically connected to the housing.
  • the static sensor unit can perform changes in position, as it is suspended almost elastic.
  • mounting tolerances can be compensated.
  • the static sensor unit since it is attached to the housing, can be replaced independently of the dynamic sensor unit.
  • Such a trained torque sensor is on the one hand maintenance friendly, on the other less sensitive to mounting tolerances.
  • the static sensor unit has a first sensor part fastened to the housing via the decoupling device and one at the
  • Torsions Painhas angry has attacking second sensor part.
  • the static sensor unit By dividing the static sensor unit into several, in particular in a first and a second sensor part, the possibility is created that a sensor part directly with connect the dynamic sensor unit, so that this second sensor part can be handled together with the dynamic sensor unit.
  • the first sensor part can be handled separately and attached to the housing. This first sensor part abuts on the housing via the elastic coupling device and can therefore be corrected in its position.
  • Both static mounting tolerances and dynamic tolerances during operation of the sensor that is to say axial and radial movements of the shaft with respect to the housing, in this way have a reduced effect on the static sensor unit, since these can follow the assembly tolerances. Tensions are avoided.
  • the two sensor parts are detachably connected to each other. This creates the possibility that in the maintenance and / or repair case, only the first, attached to the housing sensor part must be solved to perform the maintenance and / or replacement work.
  • the static sensor unit is detachably connected to the housing. This creates the possibility that both, that is, the first and the second sensor part together, can be detached from the housing and removed from the dynamic sensor unit. This also makes the maintenance and replacement of parts much easier.
  • a detachable connection is realized, for example, by a screw connection, a latching connection or a clamping connection. Other releasable connections should not be excluded.
  • the detachable connection according to the invention is accessible from outside the housing.
  • the torque sensor does not have to be broken down into its components, which was common in the prior art, if there is an electronic defect and therefore components must be replaced.
  • the static sensor unit and especially in a multi-part design only the first sensor part, equipped with the electronic components of the torque sensor.
  • the electronic components are thus not distributed over all sensor units, but are combined in the static sensor unit and in particular in a first sensor part of this static sensor unit. Since the replacement can be done from outside the housing, a complete disassembly of the torque sensor is unnecessary.
  • An optimal decoupling of the static sensor unit from the housing can be achieved in that the decoupling device is elastic in the radial and / or in the axial direction. It can the
  • Decoupling device for example, be designed as a membrane or as a membrane ring. In this way it is also achieved that via the membrane or the membrane ring, a seal of the housing or the housing interior takes place.
  • the decoupling device is designed as part of a lid closing a housing opening. After removal of the lid, thereby also the static sensor unit, or a first sensor part of the static sensor unit is removed, the interior of the housing is accessible. This also makes maintenance much easier.
  • the decoupling device is made, for example, of plastic, in particular of an elastomer, of spring steel, in particular a corrugated tube, or a corresponding elastic material.
  • plastic in particular of an elastomer, of spring steel, in particular a corrugated tube, or a corresponding elastic material.
  • Such materials, or components are resilient and can transmit both forces as well as correct positional deviations.
  • Figure 1 is an exploded view of a torque sensor, with partially cut housing
  • Figure 2 is a perspective view of the torque sensor with partially cut housing
  • FIG. 3 shows a side view of the torque sensor with section III-III according to FIG. 2.
  • the reference numeral 10 designates a torque sensor which has a torsion device 12, which is rotatably mounted in a housing 14 via bearings (not shown), for example ball bearings or the like.
  • a dynamic sensor unit 16 At the torsion device 12, two annular ferromagnetic torque sensor units are attached, which are referred to below as a dynamic sensor unit 16.
  • This dynamic sensor unit 16 is partially overlapped by two magnetic flux concentrators 18, wherein the magnetic flux concentrators 18 part of a static Sensor unit 20 are.
  • This static sensor unit 20 has a sliding ring 22, which surrounds a (not shown) plain bearing of the torsion device 12 and is supported on axially projecting wings 24 provided on the inside of the housing 14 shoulders 26 ( Figure 2), so that the static sensor unit 20 is not rotates with the torsion device 12.
  • the static sensor unit 20 is formed by a first sensor part 28 and a second sensor part 30, wherein the second sensor part 30 surrounds the torsion device 12 and the first sensor part 28 is attached to a cover 32, with which a housing opening 34 can be closed.
  • the two sensor parts 28 and 30 are rigidly connected to one another by means of a screw connection 36 (FIG. 3), the screw connection 36 being accessible from outside the housing 14.
  • the lid 32 itself is screwed by means of screws 38 to a flange 40 of the housing 14.
  • the first sensor part 28 is fastened in the cover 32 via a decoupling device 42, wherein the decoupling device 42 completely surrounds the first sensor part 28 and supports it elastically or flexibly.
  • the decoupling device 42 is, for example, a plastic membrane having elastic properties in both the axial and radial directions.
  • the upper side 44 of the second sensor part 30 is configured such that the electronic components of the first sensor part 28, such as Hall sensors and the like, can be plugged into the second sensor part 30 from above, that is orthogonal to the upper side 44.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Power Steering Mechanism (AREA)

Abstract

L'invention concerne un capteur de couple qui comprend un boîtier, un dispositif de torsion logé rotatif dans le boîtier, une unité capteur dynamique reliée de manière solidaire en rotation avec le dispositif de torsion, ainsi qu'une unité capteur statique coopérant avec l'unité capteur dynamique. Selon l'invention, l'unité capteur statique est reliée élastiquement au boîtier au moyen d'un dispositif de découplage.
EP05770950A 2004-11-10 2005-08-04 Capteur de couple Withdrawn EP1809996A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004055124.3A DE102004055124B4 (de) 2004-11-10 2004-11-10 Drehmomentsensor
PCT/EP2005/008436 WO2006050762A1 (fr) 2004-11-10 2005-08-04 Capteur de couple

Publications (1)

Publication Number Publication Date
EP1809996A1 true EP1809996A1 (fr) 2007-07-25

Family

ID=35820797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05770950A Withdrawn EP1809996A1 (fr) 2004-11-10 2005-08-04 Capteur de couple

Country Status (4)

Country Link
US (1) US20080295612A1 (fr)
EP (1) EP1809996A1 (fr)
DE (1) DE102004055124B4 (fr)
WO (1) WO2006050762A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2102618A1 (fr) 2006-12-07 2009-09-23 Continental Teves AG & CO. OHG Ensemble de capteur de couple
DE102007057292A1 (de) 2007-11-28 2009-06-04 Valeo Schalter Und Sensoren Gmbh Vorrichtung und Verfahren zur Befestigung einer Drehmoment- oder Drehwinkelsensoranordnung an einer Welle
DE102008015274A1 (de) 2008-03-20 2009-09-24 Valeo Schalter Und Sensoren Gmbh Sensorbaugruppe für eine Drehmoment- und/oder Drehwinkelsensoranordnung
DE102009047447A1 (de) * 2009-12-03 2011-06-09 Continental Teves Ag & Co. Ohg Sensoranordnung mit Positioniereinrichtung
JP6064284B2 (ja) * 2010-05-14 2017-01-25 ティーアールダブリュー・オートモーティブ・ユーエス・エルエルシー トルク・センサ組立体およびその製作方法
DE102018112840A1 (de) 2018-05-29 2019-12-05 Thyssenkrupp Ag Drehmomentsensoreinheit mit eingepresster Sensoreinheit
DE102019111846B4 (de) * 2019-05-07 2020-12-03 Valeo Schalter Und Sensoren Gmbh Drehmomentsensorbaugruppe, Drehmomentsensorvorrichtung und Fahrzeug
DE102020109605A1 (de) 2020-04-07 2021-10-07 Schaeffler Technologies AG & Co. KG Sensorlageranordnung
CN112763113B (zh) * 2020-12-21 2022-09-27 上海罗玛动力科技有限公司 一种动态扭矩传感装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942112A (en) * 1974-05-06 1976-03-02 Westbrook Carl M Rotary seal shaft rotation transducer
US4414854A (en) * 1981-10-30 1983-11-15 Mts Systems Corporation Rotary actuator assembly
US4784002A (en) * 1986-12-17 1988-11-15 Atsugi Motor Parts Company, Limited Torque sensor
GB2208716B (en) * 1987-08-12 1991-02-27 Smiths Industries Plc Speed and torque sensors
US4984474A (en) * 1988-09-30 1991-01-15 Copal Company Limited Torque sensor
US5255567A (en) * 1990-06-30 1993-10-26 Nippon Densan Corporation Torque transducer
US5307691A (en) * 1990-06-30 1994-05-03 Kubota Corporation Torque transducer
DE19828513A1 (de) * 1998-06-26 1999-12-30 Zahnradfabrik Friedrichshafen Elektrisch unterstützte Hilfskraftlenkung für Kraftfahrzeuge
WO2000046581A1 (fr) * 1999-02-05 2000-08-10 Curtis Instruments, Inc. Detecteur de vitesse angulaire, de couple et de puissance pour arbre
US6347554B1 (en) * 2000-02-29 2002-02-19 C.E. Electronics, Inc. Torque transducer assembly
FR2821668B1 (fr) * 2001-03-02 2003-05-02 Moving Magnet Tech Capteur de position, notamment destine a la detection de la torsion d'une colonne de direction
DE60121541T2 (de) * 2001-03-16 2007-07-05 Mando Corp., Pyungtaek Drehmomentsensor für ein Fahrzeug
KR100397712B1 (ko) * 2001-03-16 2003-09-13 주식회사 만도 차량용 토크센서
FR2824910B1 (fr) * 2001-05-18 2005-05-13 Denso Corp Capteur de couple et systeme de direction assistee electrique employant ce capteur
US6644134B2 (en) * 2002-02-21 2003-11-11 Visteon Global Technologies, Inc. Flux brush torque sensor
JP2003329523A (ja) * 2002-03-07 2003-11-19 Denso Corp トルクセンサ
DE10256322A1 (de) * 2002-11-28 2004-06-09 Valeo Schalter Und Sensoren Gmbh Vorrichtung zum Bestimmen eines auf eine Welle ausgeübten Drehmoments
DE10316124A1 (de) * 2003-04-04 2004-10-28 Valeo Schalter Und Sensoren Gmbh Vorrichtung zum Bestimmen eines auf eine Welle ausgeübten Drehmoments
JP2005077305A (ja) * 2003-09-02 2005-03-24 Matsushita Electric Ind Co Ltd 回転角度およびトルク検出装置
DE102004023801A1 (de) * 2004-01-20 2005-08-25 Valeo Schalter Und Sensoren Gmbh Vorrichtung zum Bestimmen eines Lenkwinkels und eines an einer Lenkwelle ausgeübten Drehmoments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006050762A1 *

Also Published As

Publication number Publication date
WO2006050762A1 (fr) 2006-05-18
DE102004055124B4 (de) 2017-06-01
DE102004055124A1 (de) 2006-05-11
US20080295612A1 (en) 2008-12-04

Similar Documents

Publication Publication Date Title
WO2006050762A1 (fr) Capteur de couple
DE102007020274B4 (de) Messsystem zum Erfassen einer Dreh-Linear-Bewegung und entsprechender Drehlinearantrieb
DE19635895B4 (de) Ventilbetätigungsorgan
DE102009054521A1 (de) Drehzahlsensor
DE10221873A1 (de) Gummilager mit Einfederungssensor
EP1979209A1 (fr) Dispositif d'actionnement, notamment pour un frein de stationnement de véhicule à moteur
DE102008064406A1 (de) Anzeigeeinrichtung für einen Stellantrieb und Stellantrieb für eine Armatur
WO2010070014A1 (fr) Détecteur de position angulaire
DE102008006605B4 (de) Lagerkappe
WO2001086226A2 (fr) Dispositif pour detecter l'angle de rotation entre deux elements constitutifs
DE29901516U1 (de) Steckbarer Drosselklappendrehwinkelsensor
DE102005039081A1 (de) Modular aufgebautes Drehgeberbaukastensystem
DE60315559T2 (de) Vorrichtung zum Melken eines Tieres
DE102011016627A1 (de) Messeinrichtung und Kraftfahrzeuglenkung mit einer solchen
EP1762383A2 (fr) Machine d'impression
DE69011389T2 (de) Anzeiger des Holzspäneniveaus mit einem Differentialtransformator.
EP0834721B1 (fr) Débitmètre
DE202009012027U1 (de) Winkellagedetektor zum Einbau in eine Drehachse
DE102004022770B4 (de) Befestigung eines Drehgebers
DE102008051613A1 (de) Fräskopf
DE8712878U1 (de) Absperrorgan für Gase oder Flüssigkeiten
EP2921834B1 (fr) Dispositif de détermination du couple d'un disque diffuseur d'un épandeur d'engrais
DE102005059183B4 (de) Vorrichtung zur Messung von Drehbewegungen eines Radlagers
DE102020104803A1 (de) Ventilstellantrieb sowie Baugruppe
DE202005019830U1 (de) Drehgeber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070505

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 20070911

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080122