DE102009008591A1 - Electromechanical steering has end stop, where steering housing is provided, and handle bar is provided with threaded section which extends through steering housing - Google Patents
Electromechanical steering has end stop, where steering housing is provided, and handle bar is provided with threaded section which extends through steering housing Download PDFInfo
- Publication number
- DE102009008591A1 DE102009008591A1 DE102009008591A DE102009008591A DE102009008591A1 DE 102009008591 A1 DE102009008591 A1 DE 102009008591A1 DE 102009008591 A DE102009008591 A DE 102009008591A DE 102009008591 A DE102009008591 A DE 102009008591A DE 102009008591 A1 DE102009008591 A1 DE 102009008591A1
- Authority
- DE
- Germany
- Prior art keywords
- ball screw
- screw nut
- handlebar
- steering
- end stops
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 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
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0442—Conversion of rotational into longitudinal movement
- B62D5/0445—Screw drives
- B62D5/0448—Ball nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0469—End-of-stroke control
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine elektromechanische Lenkung mit Endanschlag, umfassend ein Lenkungsgehäuse, eine Lenkstange mit einem Gewindeabschnitt, die sich durch das Lenkungsgehäuse erstreckt, eine Kugelgewindemutter, die über Kugeln mit dem Gewindeabschnitt in Gewindeeingriff steht, und ein Wälzlager, über das die Kugelgewindemutter drehbar im Lenkungsgehäuse gelagert und axial festgelegt ist.The Invention relates to an electromechanical steering with end stop, comprising a steering housing, a handlebar with a threaded portion, extending through the steering housing, a ball screw nut, which is in threaded engagement with the thread section via balls, and a rolling bearing over which the ball screw nut rotatably mounted in the steering housing and fixed axially is.
Über die Kugelgewindemutter wird ein Antriebsmoment eines Motors, gegebenenfalls unter Zwischenschaltung eines Getriebes, in eine translatorische Bewegung der Lenkstange umgesetzt und an den Rädern eines Kraftfahrzeugs zur Wirkung gebracht wird.about the ball screw nut becomes a drive torque of a motor, if necessary with the interposition of a transmission, in a translatory Movement of the handlebar implemented and on the wheels of a Motor vehicle is brought into effect.
Derartige
Lenkungen sind aus dem Stand der Technik allgemein bekannt und werden
unter anderem in der
Üblicherweise
ist bei derartigen Lenkungen eine Hubbegrenzung für die
Lenkstange vorgesehen. Diese Hubbegrenzung kann, wie in der
Weiterhin
wird in der
Weitere
elastische Endanschläge für Lenkungen sind aus
der
Der Erfindung liegt die Aufgabe zugrunde, eine Alternative zu herkömmlichen Endanschlägen aufzuzeigen, welche es ermöglicht, mit einfachen Mitteln bei impulsartiger Belastung eine Schädigung des Kugelgewindetriebs und der zugehörigen Lagerung zu vermeiden.Of the Invention is based on the object, an alternative to conventional Limit stops, which makes it possible with simple means with impulsive load a damage of the Ball screw and the associated storage to avoid.
Diese Aufgabe wird durch eine elektromechanische Lenkung gemäß Patentanspruch 1 gelöst. Die erfindungsgemäße Lenkung zeichnet sich insbesondere dadurch aus, dass zwei Endanschläge an der Lenkstange beidseits der Kugelgewindemutter angeordnet sind, die die verfügbare Eingriffslänge des Gewindeabschnitts für die Kugelgewindemutter begrenzen und bei maximaler axialer Verschiebung der Lenkstange relativ zu der Kugelgewindemutter gegen die Kugelgewindemutter anlaufen. Hierdurch lässt sich eine mechanische Dämpfung innerhalb des Lenkungsgehäuses umsetzen. Eine externe Hubbegrenzung außerhalb des Lenkungsgehäuses kann entfallen.These Task is by an electromechanical steering system according to claim 1 solved. The steering system according to the invention is characterized in particular by the fact that two end stops are arranged on the handlebar on both sides of the ball screw nut, the available engagement length of the threaded portion limit for the ball screw nut and at maximum axial displacement of the handlebar relative to the ball screw nut against start the ball screw nut. This can be a mechanical damping within the steering housing implement. An external stroke limitation outside of the steering housing can be omitted.
Vorteilhafte Ausgestaltungen der erfindungsgemäßen Lenkung sind in weiteren Patentansprüchen angegeben.advantageous Embodiments of the steering system according to the invention are specified in further claims.
Nachfolgend wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Die Zeichnung zeigt in:following the invention with reference to an embodiment shown in the drawing explained in more detail. The drawing shows in:
Das
Ausführungsbeispiel zeigt eine elektromechanische Lenkung
Die
Getriebestufe
Die
Kugelgewindemutter
An
den axialen Enden der Lenkstange
Die
Lenkung
Die
Endanschläge
Die
Endanschläge
Bei
dem dargestellten Ausführungsbeispiel sind die Endanschläge
In
Abwandlung des dargestellten Ausführungsbeispiels können
die Endanschläge
In
sämtlichen Fällen sind die Endanschläge innerhalb
des nach außen abgedichteten Lenkungsgehäuses
Die Erfindung wurde vorstehend anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Sie ist jedoch nicht hierauf beschränkt, sondern umfasst alle durch die Patentansprüche definierten Ausgestaltungen.The The invention has been described above with reference to a preferred embodiment explained in more detail. But she is not on it but all encompasses the claims defined embodiments.
- 11
- Lenkungsteering
- 22
- LenkgetriebegehäuseSteering gear housing
- 33
- Zahnstangerack
- 44
- Elektromotorelectric motor
- 55
- Getriebestufegear stage
- 66
- KugelgewindetriebBall Screw
- 77
- Riemenscheibepulley
- 88th
- Riemenscheibepulley
- 99
- KugelgewindemutterBall screw nut
- 1010
- Riemenbelt
- 1111
- Gewindeabschnitt der Kugelgewindemutterthreaded portion the ball screw nut
- 1212
- Gewindeabschnitt der Zahnstangethreaded portion the rack
- 1313
- KugelBullet
- 1414
- Wälzlagerroller bearing
- 1515
- Innenringinner ring
- 1616
- Außenringouter ring
- 1717
- KugelBullet
- 1818
- Flanschflange
- 2222
- SpurstangengelenkTie joint
- 2323
- KugelBullet
- 2424
- Gelenkstangejoint rod
- 2525
- Aufnahmeadmission
- 2626
- Endanschlagend stop
- 2727
- Feder- und/oder DämpferelementFeather- and / or damper element
- 2828
- Stützringsupport ring
- 2929
- Anschlagflächestop surface
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1237776 A1 [0003] EP 1237776 A1 [0003]
- - EP 1237777 A1 [0003] EP 1237777 A1 [0003]
- - DE 102007012655 A1 [0004] - DE 102007012655 A1 [0004]
- - DE 10244067 A1 [0005] - DE 10244067 A1 [0005]
- - US 5788009 A1 [0006] US 5788009 A1 [0006]
- - US 6851508 B2 [0006] US 6851508 B2 [0006]
- - EP 1429951 B1 [0006] - EP 1429951 B1 [0006]
- - DE 19523568 C2 [0006] - DE 19523568 C2 [0006]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009008591A DE102009008591A1 (en) | 2009-02-12 | 2009-02-12 | Electromechanical steering has end stop, where steering housing is provided, and handle bar is provided with threaded section which extends through steering housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009008591A DE102009008591A1 (en) | 2009-02-12 | 2009-02-12 | Electromechanical steering has end stop, where steering housing is provided, and handle bar is provided with threaded section which extends through steering housing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009008591A1 true DE102009008591A1 (en) | 2010-08-19 |
Family
ID=42338633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009008591A Pending DE102009008591A1 (en) | 2009-02-12 | 2009-02-12 | Electromechanical steering has end stop, where steering housing is provided, and handle bar is provided with threaded section which extends through steering housing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009008591A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011014922A1 (en) | 2011-03-24 | 2012-09-27 | Volkswagen Aktiengesellschaft | Electromechanical steering system for vehicle, particularly motor vehicle, has front surface of ball retainer of axial joints for forming contact surface, where ball retainer is firmly connected with steering spindle |
DE102012005123A1 (en) | 2012-03-14 | 2013-09-19 | Volkswagen Aktiengesellschaft | Assembly for fastening rolling bearing with ball threaded nut in vehicle steering gear, has support structure with axial abutment portion which is engaged with axial contact portion of bearing ring, in assembled state |
DE102012007329A1 (en) | 2012-04-12 | 2013-10-17 | Volkswagen Aktiengesellschaft | Shaft-hub-connection, particularly for fixing roller bearing in ball screw nut of electromechanical steering system of vehicle, has mounting ring, whose contact surfaces include angle in range of five degree to fifty degree with each other |
DE102015219316A1 (en) | 2015-10-06 | 2017-04-06 | Volkswagen Aktiengesellschaft | Electromechanical steering with one end stop |
CN110920745A (en) * | 2018-09-20 | 2020-03-27 | 株式会社万都 | Rack assist electric power steering apparatus |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10119795A (en) * | 1996-10-17 | 1998-05-12 | Toyota Motor Corp | Rotation transmission mechanism |
US5788009A (en) * | 1995-07-04 | 1998-08-04 | Hyundai Motor Co. | Steering gear box having a buffer |
DE19523568C2 (en) | 1994-06-29 | 2001-01-18 | Nsk Ltd | Electrically assisted steering device |
EP1237777A1 (en) | 1999-12-17 | 2002-09-11 | ZF Lenksysteme GmbH | Steering device for a vehicle |
EP1237776A1 (en) | 1999-12-01 | 2002-09-11 | Krupp Presta Aktiengesellschaft | High-efficiency tubular electrical steering servo |
DE10244067A1 (en) | 2002-09-06 | 2004-04-01 | Volkswagen Ag | Device and method for steering assistance for vehicles with electromechanical steering |
DE10329292A1 (en) * | 2003-06-30 | 2005-01-20 | Zf Lenksysteme Gmbh | Device for generating a torque |
US6851508B2 (en) | 2000-07-21 | 2005-02-08 | Nsk Ltd. | Motor-operated power steering device |
EP1429951B1 (en) | 2001-09-28 | 2005-05-25 | ZF Lenksysteme GmbH | Rack steering device |
DE102007012655A1 (en) | 2007-01-10 | 2008-07-17 | Volkswagen Ag | Electromechanical steering mechanism has steering gear housing and toothed rack, which is extended by steering gear housing, and electromotor is coupled by ball screw with toothed rack |
DE102007039733A1 (en) * | 2007-08-22 | 2009-02-26 | Zf Lenksysteme Gmbh | Steering device for motor vehicle, has stopper limiting deflection and number of revolutions of one of elements, where stopper is arranged on one drive output shaft and at input side of belt drive on shaft and implemented as disk stopper |
-
2009
- 2009-02-12 DE DE102009008591A patent/DE102009008591A1/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19523568C2 (en) | 1994-06-29 | 2001-01-18 | Nsk Ltd | Electrically assisted steering device |
US5788009A (en) * | 1995-07-04 | 1998-08-04 | Hyundai Motor Co. | Steering gear box having a buffer |
JPH10119795A (en) * | 1996-10-17 | 1998-05-12 | Toyota Motor Corp | Rotation transmission mechanism |
EP1237776A1 (en) | 1999-12-01 | 2002-09-11 | Krupp Presta Aktiengesellschaft | High-efficiency tubular electrical steering servo |
EP1237777A1 (en) | 1999-12-17 | 2002-09-11 | ZF Lenksysteme GmbH | Steering device for a vehicle |
US6851508B2 (en) | 2000-07-21 | 2005-02-08 | Nsk Ltd. | Motor-operated power steering device |
EP1429951B1 (en) | 2001-09-28 | 2005-05-25 | ZF Lenksysteme GmbH | Rack steering device |
DE10244067A1 (en) | 2002-09-06 | 2004-04-01 | Volkswagen Ag | Device and method for steering assistance for vehicles with electromechanical steering |
DE10329292A1 (en) * | 2003-06-30 | 2005-01-20 | Zf Lenksysteme Gmbh | Device for generating a torque |
DE102007012655A1 (en) | 2007-01-10 | 2008-07-17 | Volkswagen Ag | Electromechanical steering mechanism has steering gear housing and toothed rack, which is extended by steering gear housing, and electromotor is coupled by ball screw with toothed rack |
DE102007039733A1 (en) * | 2007-08-22 | 2009-02-26 | Zf Lenksysteme Gmbh | Steering device for motor vehicle, has stopper limiting deflection and number of revolutions of one of elements, where stopper is arranged on one drive output shaft and at input side of belt drive on shaft and implemented as disk stopper |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011014922A1 (en) | 2011-03-24 | 2012-09-27 | Volkswagen Aktiengesellschaft | Electromechanical steering system for vehicle, particularly motor vehicle, has front surface of ball retainer of axial joints for forming contact surface, where ball retainer is firmly connected with steering spindle |
DE102012005123A1 (en) | 2012-03-14 | 2013-09-19 | Volkswagen Aktiengesellschaft | Assembly for fastening rolling bearing with ball threaded nut in vehicle steering gear, has support structure with axial abutment portion which is engaged with axial contact portion of bearing ring, in assembled state |
DE102012007329A1 (en) | 2012-04-12 | 2013-10-17 | Volkswagen Aktiengesellschaft | Shaft-hub-connection, particularly for fixing roller bearing in ball screw nut of electromechanical steering system of vehicle, has mounting ring, whose contact surfaces include angle in range of five degree to fifty degree with each other |
DE102015219316A1 (en) | 2015-10-06 | 2017-04-06 | Volkswagen Aktiengesellschaft | Electromechanical steering with one end stop |
CN110920745A (en) * | 2018-09-20 | 2020-03-27 | 株式会社万都 | Rack assist electric power steering apparatus |
US11661100B2 (en) * | 2018-09-20 | 2023-05-30 | Hl Mando Corporation | Rack assist electric power steering apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R012 | Request for examination validly filed | ||
R016 | Response to examination communication |