DE102009057810A1 - Torsion module for torque detection device of e.g. steering system of motor vehicle, has spoked wheel comprising inner ring fastened to steering shaft, and annular disks that are connected with each other made of sheet metal - Google Patents
Torsion module for torque detection device of e.g. steering system of motor vehicle, has spoked wheel comprising inner ring fastened to steering shaft, and annular disks that are connected with each other made of sheet metal Download PDFInfo
- Publication number
- DE102009057810A1 DE102009057810A1 DE200910057810 DE102009057810A DE102009057810A1 DE 102009057810 A1 DE102009057810 A1 DE 102009057810A1 DE 200910057810 DE200910057810 DE 200910057810 DE 102009057810 A DE102009057810 A DE 102009057810A DE 102009057810 A1 DE102009057810 A1 DE 102009057810A1
- Authority
- DE
- Germany
- Prior art keywords
- torsion module
- module according
- annular discs
- inner ring
- steering shaft
- 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- Withdrawn
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 title description 3
- 238000005452 bending Methods 0.000 claims abstract description 17
- 238000005538 encapsulation Methods 0.000 claims description 2
- 238000003698 laser cutting Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
- G01L3/1407—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs
- G01L3/1428—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers
- G01L3/1457—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers involving resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
- G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Torsionsmodul für eine Drehmomenterfassungseinrichtung eines Lenksystems oder Lenkkraftunterstützungssystems, aufweisend ein Speichenrad mit einem an der Lenkspindel befestigbaren Innenring und einem über Biegespeichen mit dem Innenring verbundenen und konzentrisch zu diesem angeordneten Außenring.The present invention relates to a torsion module for a torque detecting device of a steering system or power steering system, comprising a spoke wheel with an inner ring attachable to the steering shaft and a bending ring connected to the inner ring and concentrically arranged on this outer ring.
Drehmomenterfassungseinrichtungen der betreffenden Art werden in Kraftfahrzeugen eingesetzt, um das auf das Lenkrad ausgeübte Drehmoment zu erfassen, welches etwa als Eingangsgröße für elektrische Lenkkraftunterstützungssysteme benötigt wird. Zur Drehmomenterfassung ist dabei ein Torsionsmodul vorgesehen, das einen Drehwinkelversatz zwischen Lenkspindel und Lenkrad bei Anlegen eines Drehmoments gestattet.Torque detecting devices of the type in question are used in motor vehicles to detect the torque applied to the steering wheel, which is required as an input for electric power steering systems. For torque detection while a torsion module is provided which allows a rotational angle offset between the steering shaft and steering wheel when applying a torque.
Derartige Torsionsmodule sind beispielsweise aus den deutschen Offenlegungsschriften
Die Herstellung derartiger Teile ist durch die erforderliche umfangreiche und zeitaufwändige mechanische Bearbeitung sehr kostenaufwändig.The production of such parts is very costly due to the required extensive and time-consuming mechanical processing.
Es stellte sich daher die Aufgabe, ein Torsionsmodul für eine Drehmomenterfassungseinrichtung zu schaffen, das auf besonders einfache und kostengünstige Weise herstellbar ist.It was therefore an object to provide a torsion module for a torque detection device that can be produced in a particularly simple and cost-effective manner.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Torsionsmodul einen Stapel mehrerer miteinander verbundener Ringscheiben aufweist, die aus Blech geformt sind.This object is achieved in that the torsion module has a stack of several interconnected annular discs, which are formed from sheet metal.
Blechwerkstücke sind im Vergleich zu geschmiedeten oder massiv gegossenen Teilen schnell und mit einem geringen Bearbeitungsaufwand und damit sehr kostengünstig herstellbar. Vorzugsweise sind bei dem erfindungsgemäßen Torsionsmodul die Ringscheiben durch Stanzen oder Laserschneiden aus einem band- oder tafelförmigen Halbzeug geformt. Selbstverständlich können sich zur endgültigen Formgebung daran weitere Bearbeitungsschritte, wie zum Beispiel Biegen oder Bohren anschließen.Sheet metal workpieces are compared to forged or solid cast parts quickly and with a low processing cost and thus very inexpensive to produce. Preferably, in the torsion module according to the invention, the annular discs are formed by punching or laser cutting of a band or tabular semifinished product. Of course, the final shaping can be followed by further processing steps, such as bending or drilling.
Die derart auf einfache und kostengünstige Weise hergestellten Ringscheiben sind miteinander zu einem Stapel verbunden, dessen Funktionsweise der von massiven Komponenten bekannter Torsionsmodule entspricht. Die Anzahl der vorgesehenen Ringscheiben kann zwischen zwei und mehreren Dutzend betragen, wobei bei einer größeren Anzahl von Ringscheiben deren Materialstärke entsprechend geringer vorgesehen wird. Hierdurch kann die Summe aus Material- und Bearbeitungsaufwand je nach Anwendungsfall variiert und unter Kostengesichtspunkten optimiert werden. Im Extremfall kann der Ringscheibenstapel aus einer Vielzahl sehr dünner Bleche, ähnlich einem Trafoblechpaket, zu einem Torsionsmodul paketiert werden.The ring disks produced in such a simple and cost-effective manner are connected to one another in a stack, the mode of operation of which corresponds to that of solid components known torsion modules. The number of annular discs provided may be between two and several dozen, with a larger number of washers whose material thickness is provided correspondingly lower. As a result, the sum of material and processing costs can be varied depending on the application and optimized from a cost point of view. In extreme cases, the ring disk stack from a variety of very thin sheets, similar to a Trafoblechpaket be packaged to a torsion module.
Vorteilhaft ist es, wenn die Ringscheiben form- und vorzugsweise materialschlüssig miteinander verbunden sind. Hierdurch können auch geringfügige relative Verschiebungen zwischen den Ringscheiben verhindert werden, welche die Genauigkeit der sehr empfindlichen Torsionsmessverfahren beeinträchtigen könnten. Besonders vorteilhaft ist es, die Ringscheiben miteinander zu verschweißen oder mit einem Metall oder Kunststoff zu umspritzen.It is advantageous if the annular discs are positively and preferably materially connected to each other. As a result, even slight relative displacements between the annular discs can be prevented, which could affect the accuracy of the very sensitive Torsionsmessverfahren. It is particularly advantageous to weld the annular disks together or to overmold with a metal or plastic.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus der folgenden Erläuterung von zwei Ausführungsbeispielen anhand der Zeichnung. Es zeigenFurther advantageous embodiments and developments will become apparent from the following explanation of two embodiments with reference to the drawings. Show it
Ein erstes Ausführungsbeispiel eines Torsionsmodul für eine Drehmomenterfassungseinrichtung eines Lenksystems oder Lenkkraftunterstützungssystems in einem Kraftfahrzeug ist in den
Die in der
Eine weitere Ringscheibe
Bei der Montage des Torsionsmoduls werden die Innenringe (
Wird der Innenring
Die Vielzahnhülse
Die soweit beschriebene Anordnung dient zur Erfassung eines Lenkmomentes und funktioniert dem Prinzip nach wie folgt. Wird das Lenkrad gedreht, so wird die Lenkradbewegung von den miteinander verbundenen Außenringen (
Die Anschlagspeichen
Vorteilhaft ist auch, dass die Anschlagspeichen
Eine vorteilhafte, weil besonders einfache und kostengünstige Ausführungsform eines Torsionsmoduls ist den
Auch der Montageaufwand ist besonders gering, da das Anordnen identischer Ringscheiben
Die
Die Ringscheibe
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1a, 1b, 1c1a, 1b, 1c
-
Ringscheiben (
1a ,1c auch Speichenrad)Ring discs (1a .1c also spoked wheel) - 2a, 2b, 2c2a, 2b, 2c
- Innenringinner ring
- 3a, 3b, 3c3a, 3b, 3c
- Außenringouter ring
- 4a, 4c4a, 4c
- Biegespeichenbending spokes
- 55
- AnschlagspeichenringStop spokes ring
- 6b, 6c6b, 6c
- Anschlagspeichenstop spokes
- 77
- Anschlagflächenstop surfaces
- 88th
- gekröpfte Endabschnittecranked end sections
- 9, 9c9, 9c
- VielzahnhülseSplined sleeve
- 10, 10a, 10b10, 10a, 10b
- Bohrungendrilling
- 1111
- Ausnehmungenrecesses
- 1212
- AußenringflächenOuter ring surfaces
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10144143 A1 [0003] DE 10144143 A1 [0003]
- DE 10144054 A1 [0003] DE 10144054 A1 [0003]
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910057810 DE102009057810A1 (en) | 2009-12-10 | 2009-12-10 | Torsion module for torque detection device of e.g. steering system of motor vehicle, has spoked wheel comprising inner ring fastened to steering shaft, and annular disks that are connected with each other made of sheet metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910057810 DE102009057810A1 (en) | 2009-12-10 | 2009-12-10 | Torsion module for torque detection device of e.g. steering system of motor vehicle, has spoked wheel comprising inner ring fastened to steering shaft, and annular disks that are connected with each other made of sheet metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009057810A1 true DE102009057810A1 (en) | 2011-06-16 |
Family
ID=43992787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200910057810 Withdrawn DE102009057810A1 (en) | 2009-12-10 | 2009-12-10 | Torsion module for torque detection device of e.g. steering system of motor vehicle, has spoked wheel comprising inner ring fastened to steering shaft, and annular disks that are connected with each other made of sheet metal |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009057810A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019787A1 (en) * | 2013-11-27 | 2015-05-28 | Valeo Schalter Und Sensoren Gmbh | Method for producing a ferromagnetic component for a torque sensor of a vehicle steering shaft and torque sensor |
| CN117705335A (en) * | 2024-02-05 | 2024-03-15 | 中国科学技术大学 | Inductance type reconfigurable multidimensional force sensor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3782187A (en) * | 1968-12-09 | 1974-01-01 | Asea Ab | Magneto-elastic transducer for force measurement |
| DE3611336A1 (en) * | 1986-04-04 | 1987-10-15 | Deutsche Forsch Luft Raumfahrt | FORCE TORQUE SENSOR |
| DE10114688C1 (en) * | 2001-03-23 | 2002-03-21 | Kostal Leopold Gmbh & Co Kg | Torsion module for torque detector for automobile steering or servo steering system uses pressure or expansion sensors attached to flexure spokes of spoked wheel attached to steering wheel |
| WO2002076807A1 (en) * | 2001-03-23 | 2002-10-03 | Leopold Kostal Gmbh & Co. Kg | Steering wheel for a motor vehicle |
| US6517113B1 (en) * | 1998-02-04 | 2003-02-11 | S.N.R. Roulements | Steering column with torquemeter |
| DE10144054A1 (en) | 2001-09-10 | 2003-03-27 | Kostal Leopold Gmbh & Co Kg | Torsion module for a torque-sensing device for measurement of the torque applied by a motor vehicle steering column, has an arrangement for limiting displacement of elements of the torsion module that is cost-effective and precise |
| DE69920175T2 (en) * | 1998-02-04 | 2005-09-22 | S.N.R. Roulements | STEERING WHEEL SET WITH ORGANIC OR INTEGRATED TORQUE SENSOR FOR A VEHICLE STEERING |
| AT413152B (en) * | 2003-12-23 | 2005-11-15 | Avl List Gmbh | TORQUE MEASURING DEVICE FOR A STEERING SYSTEM |
| DE102004033517A1 (en) * | 2004-07-10 | 2006-02-09 | Leopold Kostal Gmbh & Co. Kg | Torsion module for a torque detection device and method for producing a spoke wheel for a torsion module |
| DE102007040857A1 (en) * | 2007-08-29 | 2009-03-05 | Trw Automotive Gmbh | Torque sensor for a steering wheel |
| US7520182B2 (en) * | 2004-02-04 | 2009-04-21 | Ono Sokki Co., Ltd | Torque meter |
-
2009
- 2009-12-10 DE DE200910057810 patent/DE102009057810A1/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3782187A (en) * | 1968-12-09 | 1974-01-01 | Asea Ab | Magneto-elastic transducer for force measurement |
| DE3611336A1 (en) * | 1986-04-04 | 1987-10-15 | Deutsche Forsch Luft Raumfahrt | FORCE TORQUE SENSOR |
| US6517113B1 (en) * | 1998-02-04 | 2003-02-11 | S.N.R. Roulements | Steering column with torquemeter |
| DE69920175T2 (en) * | 1998-02-04 | 2005-09-22 | S.N.R. Roulements | STEERING WHEEL SET WITH ORGANIC OR INTEGRATED TORQUE SENSOR FOR A VEHICLE STEERING |
| DE10114688C1 (en) * | 2001-03-23 | 2002-03-21 | Kostal Leopold Gmbh & Co Kg | Torsion module for torque detector for automobile steering or servo steering system uses pressure or expansion sensors attached to flexure spokes of spoked wheel attached to steering wheel |
| WO2002076807A1 (en) * | 2001-03-23 | 2002-10-03 | Leopold Kostal Gmbh & Co. Kg | Steering wheel for a motor vehicle |
| DE10144054A1 (en) | 2001-09-10 | 2003-03-27 | Kostal Leopold Gmbh & Co Kg | Torsion module for a torque-sensing device for measurement of the torque applied by a motor vehicle steering column, has an arrangement for limiting displacement of elements of the torsion module that is cost-effective and precise |
| AT413152B (en) * | 2003-12-23 | 2005-11-15 | Avl List Gmbh | TORQUE MEASURING DEVICE FOR A STEERING SYSTEM |
| US7520182B2 (en) * | 2004-02-04 | 2009-04-21 | Ono Sokki Co., Ltd | Torque meter |
| DE102004033517A1 (en) * | 2004-07-10 | 2006-02-09 | Leopold Kostal Gmbh & Co. Kg | Torsion module for a torque detection device and method for producing a spoke wheel for a torsion module |
| DE102007040857A1 (en) * | 2007-08-29 | 2009-03-05 | Trw Automotive Gmbh | Torque sensor for a steering wheel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019787A1 (en) * | 2013-11-27 | 2015-05-28 | Valeo Schalter Und Sensoren Gmbh | Method for producing a ferromagnetic component for a torque sensor of a vehicle steering shaft and torque sensor |
| WO2015078664A1 (en) * | 2013-11-27 | 2015-06-04 | Valeo Schalter Und Sensoren Gmbh | Method for producing a ferromagnetic component for a torque sensor of a vehicle steering shaft and torque sensor |
| CN105849286A (en) * | 2013-11-27 | 2016-08-10 | 法雷奥开关和传感器有限责任公司 | Method for producing a ferromagnetic component for a torque sensor of a vehicle steering shaft and torque sensor |
| CN117705335A (en) * | 2024-02-05 | 2024-03-15 | 中国科学技术大学 | Inductance type reconfigurable multidimensional force sensor |
| CN117705335B (en) * | 2024-02-05 | 2024-05-14 | 中国科学技术大学 | An inductive reconfigurable multi-dimensional force sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R005 | Application deemed withdrawn due to failure to request examination |