DE102009057809A1 - torsion - Google Patents
torsion Download PDFInfo
- Publication number
- DE102009057809A1 DE102009057809A1 DE200910057809 DE102009057809A DE102009057809A1 DE 102009057809 A1 DE102009057809 A1 DE 102009057809A1 DE 200910057809 DE200910057809 DE 200910057809 DE 102009057809 A DE102009057809 A DE 102009057809A DE 102009057809 A1 DE102009057809 A1 DE 102009057809A1
- Authority
- DE
- Germany
- Prior art keywords
- outer ring
- inner ring
- bending spokes
- torsion module
- spokes
- 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- Withdrawn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
- 238000005452 bending Methods 0.000 claims abstract description 36
- 238000005538 encapsulation Methods 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000002991 molded plastic Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 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
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Steering Mechanism (AREA)
Abstract
Beschrieben wird ein Torsionsmodul für eine Drehmomenterfassungseinrichtung eines Lenksystems oder Lenkkraftunterstützungssystems, umfassend ein Speichenrad mit einem an einer Lenkspindel befestigbaren Innenring und einem über Biegespeichen mit dem Innenring verbundenen und konzentrisch zu diesem angeordneten Außenring.
Erfindungsgemäß ist erstens vorgesehen, dass mindestens ein Federelement vorgesehen ist, das zwei sich radial erstreckende Biegespeichen ausbildet, die einstückig über einen Verbindungsabschnitt miteinander verbunden sind und dass der Verbindungsabschnitt in den Innenring eingespritzt ist.
Erfindungsgemäß ist zweitens vorgesehen, dass die Biegespeichen durch mindestens ein Federelement gebildet sind, und dass die Endabschnitte des Federelements jeweils ein Anschraubauge ausbilden, das in den Außenring eingespritzt ist und dass die Umspritzung an den Orten der Anschraubaugen jeweils einen Durchbruch aufweist, durch die ein Stift oder eine Schraube durch das Anschraubauge hindurchführbar ist.
Die vorgeschlagenen ersten und zweiten erfindungsgemäßen Merkmale können besonders vorteilhaft auch in Kombination miteinander zur Anwendung kommen.A torsional module for a torque detecting device of a steering system or power steering system is described, comprising a spoke wheel with an inner ring which can be fastened to a steering spindle and an outer ring which is connected via bending spokes to the inner ring and arranged concentrically therewith.
According to the invention, it is first provided that at least one spring element is provided, which forms two radially extending bending spokes, which are integrally connected to each other via a connecting portion and that the connecting portion is injected into the inner ring.
Secondly, according to the invention, it is provided that the bending spokes are formed by at least one spring element, and that the end sections of the spring element each form a screw-on eye which is injected into the outer ring and in that the encapsulation in each case has an opening at the locations of the attachment eyes, through which a pin or a screw can be passed through the attachment eye.
The proposed first and second inventive features can be used particularly advantageously in combination with each other.
Description
Die vorliegende Erfindung betrifft ein Torsionsmodul für eine Drehmomenterfassungseinrichtung eines Lenksystems oder Lenkkraftunterstützungssystems, umfassend ein Speichenrad mit einem an einer Lenkspindel befestigbaren Innenring und einem konzentrisch zu diesem angeordneten Außenring, wobei zwischen dem Innenring und dem Außenring Biegespeichen angeordnet sind, die mit dem Innenring und dem Außenring formschlüssig verbunden sind.The present invention relates to a torsion module for a torque detecting device of a steering system or power steering system, comprising a spoked wheel with an inner ring attachable to a steering shaft and an outer ring arranged concentrically therewith, wherein between the inner ring and the outer ring bending spokes are arranged with the inner ring and the outer ring are positively connected.
Drehmomenterfassungseinrichtungen der betreffenden Art werden in Kraftfahrzeugen eingesetzt, um das auf das Lenkrad ausgeübte Drehmoment zu erfassen, dessen Wert 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. Derartige Torsionsmodule sind beispielsweise aus den deutschen Offenlegungsschriften
Die
In der
Es stellte sich daher die Aufgabe, ein Torsionsmodul für eine Drehmomenterfassungseinrichtung zu schaffen, das auf besonders einfache und kostengünstige Weise herstellbar ist und sich durch eine besonders geringe Hysterese auszeichnet.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 and is characterized by a particularly low hysteresis.
Diese Aufgabe wird erfindungsgemäß erstens dadurch gelöst, dass mindestens ein Federelement vorgesehen ist, das zwei sich radial erstreckende Biegespeichen ausbildet, die einstückig über einen Verbindungsabschnitt miteinander verbunden sind und dass der Verbindungsabschnitt in den Innenring eingespritzt ist.This object is inventively achieved firstly that at least one spring element is provided which forms two radially extending bending spokes, which are integrally connected to each other via a connecting portion and that the connecting portion is injected into the inner ring.
Diese Aufgabe wird erfindungsgemäß zweitens dadurch gelöst, dass die Biegespeichen durch mindestens ein Federelement gebildet sind, und dass die Endabschnitte des Federelements jeweils ein Anschraubauge ausbilden, das in den Außenring eingespritzt ist und dass die Umspritzung an den Orten der Anschraubaugen jeweils einen Durchbruch aufweist, durch die ein Stift oder eine Schraube durch das Anschraubauge hindurchführbar ist.This object is achieved according to the invention secondly, that the bending spokes are formed by at least one spring element, and that the end portions of the spring element each form a screw-on, which is injected into the outer ring and that the encapsulation at the locations of screw-on each having a breakthrough a pin or a screw can be passed through the mounting eye.
Die Merkmale der ersten und der zweiten Lösung können besonders vorteilhaft auch in Kombination miteinander zur Anwendung kommen.The features of the first and the second solution can be used particularly advantageously also in combination with each other.
Die Idee der Erfindung beruht darauf, die Biegespeichen des Torsionsmoduls so auszubilden, dass sie eine besonders stabile Anbindung am Innenring und/oder am Außenring ermöglichen, wobei die Befestigung der Biegespeichen insbesondere durch eine Umspritzung bei der Herstellung des Innen- bzw. Außenrings erreicht wird.The idea of the invention is based on the bending spokes of the torsion module in such a way that they allow a particularly stable connection to the inner ring and / or on the outer ring, wherein the attachment of the bending spokes is achieved in particular by an encapsulation in the production of the inner or outer ring.
Die erste Aufgabenlösung sieht dabei Biegespeichen vor, die paarweise einstückig hergestellt werden können und die durch Umspritzung des Verbindungsabschnitts auf einfache und mechanisch stabile Weise mit dem Innenring des Torsionsmoduls verbindbar sind.The first task solution provides for bending spokes, which can be manufactured in pairs in one piece and which can be connected by encapsulation of the connecting portion in a simple and mechanically stable manner with the inner ring of the torsion module.
Die zweite Aufgabenlösung sieht Anschraubaugen an den Endabschnitte des mindestens einen Federelements vor, die bei der Herstellung des Außenrings mit umspritzt werden und dadurch eine stabile formschlüssige Verbindung zum Außenring herstellen. Besonders vorteilhaft ist, dass die Anschraubaugen die Biegespeichen formschlüssig mit einem an das Torsionsmodul anfügbaren Lenkrad verbinden.The second task solution provides attachment eyes on the end portions of the at least one spring element, which are encapsulated in the production of the outer ring with and thereby produce a stable positive connection to the outer ring. It is particularly advantageous that the attachment eyes connect the bending spokes in a form-fitting manner with a steering wheel which can be attached to the torsion module.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus der folgenden Erläuterung von Ausführungsbeispielen anhand der Zeichnung. Es zeigenFurther advantageous embodiments and modifications of the invention will become apparent from the following explanation of exemplary embodiments with reference to the drawing. Show it
Die
Das Torsionsmodul besteht aus einem Speichenrad
In der
Die Federelemente
In der
Die Verbindungsabschnitte zwischen den Biegespeichen
Die soweit beschriebene Anordnung dient zur Erfassung eines Lenkmomentes und funktioniert dem Prinzip nach wie folgt. Wird das nicht dargestellte Lenkrad gedreht, so wird die Lenkradbewegung von dem mit dem Lenkrad verbundenen Außenring
Wie in der
Die Anschlagspeichen
Durch die Umspritzung der Endabschnitte und der Anschraubaugen
Eine alternative Ausführungsform von Federelementen
Aus der
Durch die formschlüssige Verbindung von Federelementen
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Speichenradspoked
- 22
- Innenringinner ring
- 3, 3'3, 3 '
- Federelementespring elements
- 44
- Außenringouter ring
- 55
- Anschlagelementestop elements
- 6, 6'6, 6 '
- Hülseshell
- 77
- Wegsensor(en)Displacement sensor (s)
- 88th
- Anschrauböffnungen (Durchbrüche)Screw holes (breakthroughs)
- 9, 9'9, 9 '
- Biegespeichenbending spokes
- 10, 10'10, 10 '
- Verbindungsabschnitt(e)Connecting portion (e)
- 1111
- Endabschnitteend
- 1212
- Verstärkungsrippenreinforcing ribs
- 1313
- Anschraubauge(n)Anschraubauge (n)
- 1414
- Anschlagspeichenstop spokes
- 1515
- Fensterwindow
- 1616
- Schraubhülsenscrew sleeves
- 1717
- Teilabschnittesections
- 1818
- (mehreckige) Außenkontur(polygonal) outer contour
- 1919
- radiale Strebenradial struts
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 [0002, 0003, 0004] DE 10144143 A1 [0002, 0003, 0004]
- DE 10144054 A1 [0002, 0004] DE 10144054 A1 [0002, 0004]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910057809 DE102009057809A1 (en) | 2009-12-10 | 2009-12-10 | torsion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910057809 DE102009057809A1 (en) | 2009-12-10 | 2009-12-10 | torsion |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009057809A1 true DE102009057809A1 (en) | 2011-06-16 |
Family
ID=43992786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910057809 Withdrawn DE102009057809A1 (en) | 2009-12-10 | 2009-12-10 | torsion |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009057809A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010017851A1 (en) | 2010-04-22 | 2011-10-27 | Leopold Kostal Gmbh & Co. Kg | Torsion module for torque detection device of e.g. electric power-assisted steering system in motor car, has connecting flange part comprising contour sleeve or contour pin, where contour pin or contour sleeve is connected with inner ring |
DE102010046889A1 (en) | 2010-09-29 | 2012-03-29 | Leopold Kostal Gmbh & Co. Kg | Torsion module for torque detecting unit for use in motor vehicle, has bending spokes that are arranged between inner ring and outer ring, which are fixed on inner ring by clamping wedges |
EP2583541A1 (en) * | 2011-10-22 | 2013-04-24 | Rapid Technic AG | Self-propelled work machine with at least one axle |
US20150353120A1 (en) * | 2012-12-28 | 2015-12-10 | Hiroyasu Kumagawa | Steering Wheel Drvice |
US20220151723A1 (en) * | 2020-11-17 | 2022-05-19 | Covidien Lp | Contactless force measurement of motor torque in powered surgical device |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2403952A (en) * | 1944-09-02 | 1946-07-16 | Baldwin Locomotive Works | Torque meter |
DE1805701A1 (en) * | 1967-11-03 | 1969-06-04 | Peugeot | Steering wheel, especially for motor vehicles, and the method and device for its manufacture |
DE2717941A1 (en) * | 1977-04-22 | 1978-10-26 | Opel Adam Ag | Impact energy absorbing steering wheel - has rim segment spokes joined to neighbouring spokes by collapsible clamp |
JPS62105770A (en) * | 1985-11-01 | 1987-05-16 | Hino Motors Ltd | Steering wheel |
JPS62198561A (en) * | 1986-02-26 | 1987-09-02 | Hino Motors Ltd | Steering wheel |
US4738157A (en) * | 1982-12-01 | 1988-04-19 | Nihon Plast Co., Ltd. | Steering wheel |
DE3830735A1 (en) * | 1988-09-09 | 1990-03-22 | Bosch Gmbh Robert | MEASURING DEVICE FOR DETERMINING THE TORQUE OF A ROTATING MACHINE PART |
EP0504963A1 (en) * | 1991-03-20 | 1992-09-23 | KOLBENSCHMIDT Aktiengesellschaft | Steering wheel |
DE19952217A1 (en) * | 1999-10-29 | 2001-05-03 | Kostal Leopold Gmbh & Co Kg | Electric steering force assistance system for vehicle with torque-detection unit; has torque detection unit with at least one sensor arranged in steering wheel and connected to evaluation unit |
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 |
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 |
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 |
EP2067687A1 (en) * | 2007-04-20 | 2009-06-10 | The Yokohama Rubber Co., Ltd. | Device for detecting steering operation force |
DE102008032898A1 (en) * | 2008-07-14 | 2010-01-21 | Werner M. Bless | Steering assembly for vehicle steering system, comprises steering shaft piece, and rigid element rigidly connected to steering shaft piece, where rigid element comprises force transfer section |
-
2009
- 2009-12-10 DE DE200910057809 patent/DE102009057809A1/en not_active Withdrawn
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2403952A (en) * | 1944-09-02 | 1946-07-16 | Baldwin Locomotive Works | Torque meter |
DE1805701A1 (en) * | 1967-11-03 | 1969-06-04 | Peugeot | Steering wheel, especially for motor vehicles, and the method and device for its manufacture |
DE2717941A1 (en) * | 1977-04-22 | 1978-10-26 | Opel Adam Ag | Impact energy absorbing steering wheel - has rim segment spokes joined to neighbouring spokes by collapsible clamp |
US4738157A (en) * | 1982-12-01 | 1988-04-19 | Nihon Plast Co., Ltd. | Steering wheel |
JPS62105770A (en) * | 1985-11-01 | 1987-05-16 | Hino Motors Ltd | Steering wheel |
JPS62198561A (en) * | 1986-02-26 | 1987-09-02 | Hino Motors Ltd | Steering wheel |
DE3830735A1 (en) * | 1988-09-09 | 1990-03-22 | Bosch Gmbh Robert | MEASURING DEVICE FOR DETERMINING THE TORQUE OF A ROTATING MACHINE PART |
EP0504963A1 (en) * | 1991-03-20 | 1992-09-23 | KOLBENSCHMIDT Aktiengesellschaft | Steering wheel |
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 |
DE19952217A1 (en) * | 1999-10-29 | 2001-05-03 | Kostal Leopold Gmbh & Co Kg | Electric steering force assistance system for vehicle with torque-detection unit; has torque detection unit with at least one sensor arranged in steering wheel and connected to evaluation unit |
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 |
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 |
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 |
EP2067687A1 (en) * | 2007-04-20 | 2009-06-10 | The Yokohama Rubber Co., Ltd. | Device for detecting steering operation force |
DE102007040857A1 (en) * | 2007-08-29 | 2009-03-05 | Trw Automotive Gmbh | Torque sensor for a steering wheel |
DE102008032898A1 (en) * | 2008-07-14 | 2010-01-21 | Werner M. Bless | Steering assembly for vehicle steering system, comprises steering shaft piece, and rigid element rigidly connected to steering shaft piece, where rigid element comprises force transfer section |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010017851A1 (en) | 2010-04-22 | 2011-10-27 | Leopold Kostal Gmbh & Co. Kg | Torsion module for torque detection device of e.g. electric power-assisted steering system in motor car, has connecting flange part comprising contour sleeve or contour pin, where contour pin or contour sleeve is connected with inner ring |
DE102010017851B4 (en) | 2010-04-22 | 2023-12-07 | Kostal Automobil Elektrik Gmbh & Co. Kg | Torsion module |
DE102010046889A1 (en) | 2010-09-29 | 2012-03-29 | Leopold Kostal Gmbh & Co. Kg | Torsion module for torque detecting unit for use in motor vehicle, has bending spokes that are arranged between inner ring and outer ring, which are fixed on inner ring by clamping wedges |
DE102010046889B4 (en) | 2010-09-29 | 2024-05-16 | Kostal Automobil Elektrik Gmbh & Co. Kg | Torsion module |
EP2583541A1 (en) * | 2011-10-22 | 2013-04-24 | Rapid Technic AG | Self-propelled work machine with at least one axle |
US20150353120A1 (en) * | 2012-12-28 | 2015-12-10 | Hiroyasu Kumagawa | Steering Wheel Drvice |
US10239551B2 (en) * | 2012-12-28 | 2019-03-26 | Autoliv Development Ab | Steering wheel device |
US20220151723A1 (en) * | 2020-11-17 | 2022-05-19 | Covidien Lp | Contactless force measurement of motor torque in powered surgical device |
US12193884B2 (en) * | 2020-11-17 | 2025-01-14 | Covidien Lp | Contactless force measurement of motor torque in powered surgical device |
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Legal Events
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R005 | Application deemed withdrawn due to failure to request examination |