WO2019210908A1 - Ensemble capteur de couple et barre stabilisatrice comportant un ensemble capteur de couple - Google Patents

Ensemble capteur de couple et barre stabilisatrice comportant un ensemble capteur de couple Download PDF

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Publication number
WO2019210908A1
WO2019210908A1 PCT/DE2019/100383 DE2019100383W WO2019210908A1 WO 2019210908 A1 WO2019210908 A1 WO 2019210908A1 DE 2019100383 W DE2019100383 W DE 2019100383W WO 2019210908 A1 WO2019210908 A1 WO 2019210908A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque sensor
sensor
board
stabilizer
base
Prior art date
Application number
PCT/DE2019/100383
Other languages
German (de)
English (en)
Inventor
Dominik Reif
Manuel SCHMITT
Thomas Lindenmayr
Hendrik TECH
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2019210908A1 publication Critical patent/WO2019210908A1/fr

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
    • G01L3/102—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 involving magnetostrictive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B60G21/0551—Mounting means therefor
    • B60G21/0553—Mounting means therefor adjustable
    • B60G21/0555—Mounting means therefor adjustable including an actuator inducing vehicle roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/42—Electric actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/11—Mounting of sensors thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/90—Other conditions or factors
    • B60G2400/98—Stabiliser movement

Definitions

  • the present invention relates to a torque sensor arrangement for detecting a torque on a machine element extending in an axis.
  • the torque sensor arrangement is based on the inverse magnetostrictive effect.
  • the invention further relates to a roll stabilizer with integrated
  • Motor vehicle softer between its two stabilizer parts has an actuator for a torsion of the stabilizer parts.
  • a magnetically encoded primary sensor is arranged at each stabilizer part.
  • the primary sensor is preferably as
  • Magnetic field sensor executed secondary sensor converts the changes of the magnetic field of the primary sensor into an electrical signal.
  • WO 2016/127988 A1 shows an arrangement for measuring a force or a moment on a machine element extending in an axis.
  • the force or the moment acts on the machine element, which leads to mechanical stresses and the machine element deforms slightly.
  • the machine element has at least two magnetization areas extending circumferentially about the axis for a magnetization formed in the machine element.
  • the magnetization regions each form a primary sensor for determining the force or the moment.
  • the arrangement further comprises at least a first magnetic field sensor, a second magnetic field sensor and a third magnetic field sensor, each of which has a secondary sensor for
  • the primary sensors d. H. the magnetization regions are used to convert the force to be measured or the moment to be measured into a corresponding magnetic field, while the
  • the magnetic field sensors are each for individual measurement of a direction component of a by the magnetization and by the force or the Moment caused magnetic field formed.
  • the magnetic field occurs due to the inverse magnetostrictive effect.
  • the magnetic field sensors are arranged opposite the machine element, wherein preferably only a small radial distance between the magnetic field sensors and an inner or outer surface of the machine element is present.
  • the magnetic field sensors can be arranged in pairs at the same position, for example on a front and a back side of a circuit board.
  • the object of the present invention is to provide a torque sensor arrangement with a secondary sensor placed on a printed circuit board, in which there is always an optimal distance between the secondary sensor and a primary sensor. Furthermore, a roll stabilizer with an integrated torque sensor arrangement is to be provided.
  • the torque sensor arrangement according to the invention is used to measure a torque on a machine element extending in an axis.
  • the axis preferably forms an axis of rotation of the machine element.
  • Torque sensor assembly comprises at least one primary sensor, which is designed as a magnetically coded portion of the machine element.
  • the machine element is preferably a flange of a
  • the primary sensor is formed as a magnetically coded portion of the flange.
  • At least one secondary sensor is arranged opposite the primary sensor.
  • the secondary sensor is used to convert the changes in the magnetic field of the primary sensor into an electrical signal.
  • the secondary sensor is located on a circuit board and is preferably designed as an integrated circuit structure.
  • the board has a flat base surface and at least one surface extending at an angle to the base surface. This angularly extending surface is arranged opposite the primary sensor. It is preferably substantially smaller in size than the base area.
  • the secondary sensor is arranged on the angled surface. As advantageous, a perpendicular to the base surface has been found.
  • the torque sensor assembly further includes a sleeve-shaped carrier to which the circuit board is attached.
  • a significant advantage of the torque sensor arrangement according to the invention is that a very close positioning of the secondary sensor to the machine element and the primary sensor is made possible by arranging the secondary sensor on the surface running at an angle to the base surface of the board. From the inventively realized very small distance between the
  • Magnetic field of the primary sensor and the secondary sensor result in comparatively strong homogeneous magnetic fields in the region of the secondary sensor. In this way very high measuring accuracies can be achieved.
  • Secondary sensors can be arranged in three dimensions.
  • the solution can be realized cost-effectively and with little effort.
  • the arrangement of the board on the carrier is a compact unit available, which can be mounted with little effort on the machine element.
  • the assembly of board and carrier is preferably at least partially within the machine element. In this case, the magnetically coded portion extends on an inner surface of the machine element.
  • the carrier is preferably made of plastic. However, it should not be limited to plastic carriers. Other suitable materials are possible.
  • the sleeve-shaped carrier has at its one end an end flange.
  • the base of the board is in this case attached to the flange and the surface on the sleeve-shaped carrier.
  • an evaluation unit for evaluating the signals of the secondary sensor which is preferably designed as an integrated circuit structure.
  • the evaluation unit is preferably in
  • the board is preferably designed as a flexible board or rigid flexible board. In this way, the angled surface can be realized with little effort.
  • the board preferably has at least one flexible area. The angled or angled surface is over the flexible area with the
  • the angled surface may also be connected to the base by means of soldered cables, cable-plug connections or plug connections.
  • the board comprises two angled surfaces, which are arranged opposite to each other. At least one secondary sensor is arranged on both surfaces.
  • the surfaces are connected via a respective flexible region with the base.
  • the at least one secondary sensor is preferably formed by a forester probe, by a fluxgate magnetometer, by a flat sensor, by a coil, by a flat conductor sensor or by an XMR sensor.
  • another type of sensor can also be used insofar as it is suitable for measuring the magnetic field produced by the inverse-magnetostrictive effect.
  • the magnetically coded portion forming the primary sensor preferably extends completely circumferentially about the axis.
  • the magnetically coded portion is preferably permanently magnetized, so that the magnetization by a
  • the torque sensor assembly further comprises at least one magnet for
  • the at least one magnet may be formed by at least one permanent magnet or alternatively by an electromagnet.
  • the machine element is preferably equipped with two primary sensors.
  • the primary sensors preferably each have a secondary sensor arranged opposite one another.
  • the machine element as a flange of a roll stabilizer or as a wave, in particular a Flohlwelle
  • the electromechanical roll stabilizer according to the invention comprises two
  • Stabilizer parts which are each coupled to a suspension of a vehicle. Between the stabilizer parts is an actuator for acting on the
  • Torque sensor assembly is preferably formed as a magnetically coded portion of a non-rotatably connecting the stabilizer part with the actuator serving flange.
  • Fig. 1 is a sectional view of a preferred embodiment of a
  • FIG. 2 is a perspective view of a board attached to a carrier of the torque sensor arrangement according to the invention according to a first embodiment
  • Fig. 3 shows the board of FIG. 2 in its non-angled or kinked
  • FIG. 4 shows the circuit board according to FIG. 3 in its bent state
  • FIG. 5 shows a second embodiment of the circuit board of the torque sensor arrangement in its non-angled or bent state.
  • FIG. 6 shows the circuit board according to FIG. 5 in its bent state
  • Fig. 7 is a simplified overall view of an electromechanical
  • FIG. 1 shows a sectional view of a preferred embodiment of a torque sensor arrangement 01 according to the invention.
  • the torque sensor arrangement 01 serves to determine a torque on a machine element 02, which is preferably designed as a flange of a roll stabilizer (see FIG. 7).
  • the machine element 02 has an axis 03, which also forms the axis of rotation of the machine element 02.
  • Torque sensor assembly 01 initially comprises at least two primary sensors (not shown). These are magnetically coded sections of the machine element 02, which are arranged on the inner surface of the machine element 02. The magnetically coded sections extend completely circumferentially about the axis 03 and are axially spaced from each other.
  • the machine element 02 is preferably made of a ferromagnetic material, which can be encoded in a simple manner magnetic sections.
  • the primary sensors convert the forces applied to the machine element 02 forces into a magnetic signal which can be detected on the inner surface of the machine element 02.
  • the torque sensor arrangement 01 further comprises four secondary sensors 04, which are arranged in the immediate vicinity of the primary sensors, wherein each two of the secondary sensors 04 each one of the primary sensors opposite
  • the secondary sensors 04 convert changes in the magnetic field, which are caused by forces acting on the primary sensors or mechanical stresses, into an electrical signal.
  • the secondary sensors 04 are formed as integrated circuit structures, which are arranged on a circuit board 05.
  • the board 05 has a base surface 07 and two angled to the base 07 extending angled surfaces 08.
  • the angled surfaces 08 are arranged opposite to each other. In the embodiment shown, the base surface 07 is flat.
  • the angled surfaces 08 are perpendicular to the base 07. In alternative embodiments, the base 07 may be uneven.
  • the angled surfaces 08 can extend at any angle to the base surface 07.
  • the angled surfaces 08 are the
  • the secondary sensors 04 are located on the angled surfaces 08.
  • Secondary sensors 04 on the angled surfaces 08 a very small distance between the primary sensors and the secondary sensors 04 can be realized.
  • the small distance between the primary and secondary sensors results in comparatively strong homogenous secondary sensors
  • Magnetic fields which allow a very high measuring accuracy and are robust against external interference fields.
  • the board 05 is attached to a sleeve-shaped carrier 10.
  • the fastening takes place by means of mechanical fastening means 12.
  • the sleeve-shaped carrier 10 has an end face at one of its two ends Flange 13 on.
  • the base 07 of the board 05 is fixed to the flange 13, while the angled surfaces 08 extend along the sleeve-shaped support 10 and are fixed to the surface thereof.
  • An electrical connection plug (not shown) for the data exchange or the power supply is preferably arranged on the carrier 10.
  • the carrier 10 is preferably made of plastic.
  • An evaluation unit 14 is arranged on the base 07 of the board 05.
  • the evaluation unit 14 is preferably designed as an integrated circuit structure.
  • the board 05 is preferably designed as a flexible board or rigid flexible board.
  • FIG. 2 shows a perspective view of the board 05 of the torque sensor arrangement fastened to the carrier 10 according to a first embodiment.
  • Figures 3 and 4 show the board 05 according to the first embodiment in detail.
  • the circuit board 05 is shown in its non-angled or not kinked state in Fig. 3.
  • Fig. 4 shows the board 05 in its folded state.
  • the board 05 has in the embodiment shown on a circular, flat base surface 07.
  • the evaluation unit 14 is arranged on the base 07.
  • the circuit board 05 further comprises the angled surfaces 08, which are rectangular in shape and arranged opposite one another.
  • the surfaces 08 are dimensioned with a smaller width than the base surface 07.
  • the surfaces 08 are connected via a respective flexible region 15 with the base 07.
  • the flexible regions 15 allow an angular alignment of the surfaces 08 to the base surface 07.
  • the surfaces 08 are aligned in their end position perpendicular to the base surface 07.
  • Figures 5 and 6 show a second embodiment of the board 05, wherein in Fig. 5, the not kinked and in Fig. 6, the bent state of the board 05 is shown.
  • the circuit board 05 in turn comprises the base surface 07 and the angled surfaces 08.
  • the base surface 07 here is rectangular.
  • the surfaces 08 are in turn connected via the flexible regions 15 with the base 07.
  • Fig. 7 shows an electromechanical roll stabilizer 17 with two stabilizer parts 18. Between the mutually facing ends of the stabilizer parts 18 is an actuator 19 for acting on the stabilizer parts 18 with torques
  • the stabilizer parts 18 are each connected via a flange 20 to the
  • Actuator 19 connected.
  • the stabilizer parts 18 are supported by two stabilizer bearings 22 on a vehicle body (not shown).
  • the already described torque sensor assembly 01 is integrated (not shown).
  • the primary sensor of the torque sensor arrangement is preferably designed as a magnetically coded section arranged on the flange 20.
  • the primary sensor of the torque sensor arrangement is preferably designed as a magnetically coded section arranged on the flange 20.
  • Each flange 20 may comprise a plurality of magnetically coded sections for realizing a plurality of primary sensors.
  • the integrated torque sensor arrangement which may be constructed according to one of the embodiments explained above, allows a permanently accurate and reliable detection of the torques occurring. The of the
  • Measured values supplied to the torque sensor arrangement are fed to the control unit of the roll stabilizer 17 and utilized in the activation of the actuator 19. This allows the accuracy of the supplied by the roll stabilizer

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

La présente invention concerne un ensemble de capteur de couple (01) pour déterminer un couple sur un élément de machine (02) s'étendant dans un axe (03), comprenant au moins un capteur primaire qui est formé comme une partie codée magnétiquement de l'élément de machine (02), et au moins un capteur secondaire (04) disposé face au capteur primaire pour convertir les variations d'un champ magnétique généré par le capteur primaire en un signal électrique, le capteur secondaire (04) étant disposé sur une platine (05). La platine (05) présente une surface de base (07) et au moins une surface (08) formant un angle avec cette surface de base, la surface (08) étant disposée face au capteur primaire et le capteur secondaire (04) étant disposé sur la surface (08). L'ensemble de capteur de couple (01) comprend en outre un support en forme de manchon (10) ayant une bride (13) côté face latérale à une extrémité de celui-ci, la surface de base (07) étant fixée à la bride (13) et la surface (08) étant fixée au support en forme de manchon (10). L'invention concerne également une barre stabilisatrice comportant un tel ensemble capteur de couple.
PCT/DE2019/100383 2018-05-03 2019-04-29 Ensemble capteur de couple et barre stabilisatrice comportant un ensemble capteur de couple WO2019210908A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018110553.3 2018-05-03
DE102018110553.3A DE102018110553A1 (de) 2018-05-03 2018-05-03 Drehmomentsensoranordnung und Wankstabilisator mit Drehmomentsensoranordnung

Publications (1)

Publication Number Publication Date
WO2019210908A1 true WO2019210908A1 (fr) 2019-11-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100383 WO2019210908A1 (fr) 2018-05-03 2019-04-29 Ensemble capteur de couple et barre stabilisatrice comportant un ensemble capteur de couple

Country Status (2)

Country Link
DE (1) DE102018110553A1 (fr)
WO (1) WO2019210908A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019112422A1 (de) 2019-05-13 2020-11-19 Schaeffler Technologies AG & Co. KG Lenkmomentensensoranordnung
DE102019124973A1 (de) 2019-07-10 2021-01-14 Schaeffler Technologies AG & Co. KG Sensoranordnung zur Erfassung eines Lenkmomentes sowie einer absoluten Winkelposition und Sensorvorrichtung mit dieser Sensoranordnung
DE102020203139A1 (de) 2020-03-11 2021-09-16 Zf Friedrichshafen Ag Sensorvorrichtung zum Sensieren einer Torsion eines Torsionselements für eine elektromechanische Wankstabilisierungseinrichtung für ein Fahrzeug, Torsionsvorrichtung und elektromechanisches Wankstabilisierungssystem
DE102022209475B3 (de) 2022-09-12 2024-02-22 Zf Friedrichshafen Ag Aktuator für eine Fahrwerkseinrichtung
DE102022209472B3 (de) 2022-09-12 2024-02-22 Zf Friedrichshafen Ag Aktuator für eine Fahrwerkseinrichtung
DE102022209474B3 (de) 2022-09-12 2024-02-22 Zf Friedrichshafen Ag Aktuator für eine Fahrwerkseinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040099064A1 (en) * 2002-11-22 2004-05-27 Viola Jeffrey Louis Magnetoelastic torque sensor assembly
DE102011078819A1 (de) 2010-09-30 2012-04-05 Schaeffler Technologies Gmbh & Co. Kg Geteilter Wankstabilisator
US20120297895A1 (en) * 2011-05-24 2012-11-29 Ford Global Technologies, Llc Magnetic Torque Sensor Packaging for Automatic Transmissions
DE102014213841A1 (de) * 2014-07-16 2016-01-21 Schaeffler Technologies AG & Co. KG Magnetostriktive Drehmomentsensoranordnung mit Magnetfeldschirmung
WO2016127988A1 (fr) 2015-02-09 2016-08-18 Schaeffler Technologies AG & Co. KG Ensemble permettant de mesurer une force ou un moment au moyen d'au moins trois capteurs de champ magnétique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013219761B3 (de) * 2013-09-30 2015-01-15 Schaeffler Technologies Gmbh & Co. Kg Anordnung und Verfahren zum Messen eines Drehmomentes an einem Maschinenelement sowie Wankstabilisator
DE102015200268B3 (de) * 2015-01-12 2016-06-09 Schaeffler Technologies AG & Co. KG Anordnung zur Messung einer Kraft oder eines Momentes mit einem Magnetfeldsensor und mit einem Magnetfeldleitelement
DE102017128517A1 (de) * 2017-12-01 2019-06-06 Schaeffler Technologies AG & Co. KG Wankstabilisator, Kraftfahrzeug und Verfahren zum Betrieb eines Kraftfahrzeugs
DE102017130075A1 (de) * 2017-12-15 2019-06-19 Schaeffler Technologies AG & Co. KG Drehmomentsensoranordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040099064A1 (en) * 2002-11-22 2004-05-27 Viola Jeffrey Louis Magnetoelastic torque sensor assembly
DE102011078819A1 (de) 2010-09-30 2012-04-05 Schaeffler Technologies Gmbh & Co. Kg Geteilter Wankstabilisator
US20120297895A1 (en) * 2011-05-24 2012-11-29 Ford Global Technologies, Llc Magnetic Torque Sensor Packaging for Automatic Transmissions
DE102014213841A1 (de) * 2014-07-16 2016-01-21 Schaeffler Technologies AG & Co. KG Magnetostriktive Drehmomentsensoranordnung mit Magnetfeldschirmung
WO2016127988A1 (fr) 2015-02-09 2016-08-18 Schaeffler Technologies AG & Co. KG Ensemble permettant de mesurer une force ou un moment au moyen d'au moins trois capteurs de champ magnétique

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