DE102004007354A1 - Electric motor for electromechanical steering for a motor vehicle has stator rotor sensors and a steering shaft having at least one hollow end - Google Patents
Electric motor for electromechanical steering for a motor vehicle has stator rotor sensors and a steering shaft having at least one hollow end Download PDFInfo
- Publication number
- DE102004007354A1 DE102004007354A1 DE200410007354 DE102004007354A DE102004007354A1 DE 102004007354 A1 DE102004007354 A1 DE 102004007354A1 DE 200410007354 DE200410007354 DE 200410007354 DE 102004007354 A DE102004007354 A DE 102004007354A DE 102004007354 A1 DE102004007354 A1 DE 102004007354A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- steering shaft
- guide pin
- electric motor
- rotor
- 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- Withdrawn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
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
- B62D5/0403—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 constructional features, e.g. common housing for motor and gear box
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
Abstract
Description
Die Erfindung betrifft einen Elektromotor für eine elektromechanische Lenkung für ein Fahrzeug, der Bestandteil einer Lenkunterstützungseinrichtung ist und von Stellsignalen einer Steuereinheit beaufschlagt wird.The The invention relates to an electric motor for electromechanical steering for a Vehicle which is part of a steering assistance device and of Actuator signals of a control unit is acted upon.
Der
in einer Lenkunterstützungseinrichtung verwendete
Elektromotor weist üblicherweise
einen mit einem Gehäuse
fest verbundenen Stator und einen drehbar gelagerten Rotor auf,
der eine Motorabtriebswelle (Lenkstellwelle) antreibt. Diese ist
durch den Rotor geführt
und drehfest mit diesem verbunden und läuft somit koaxial zu diesem
um und verstellt über
eine Koppeleinrichtung die Vorderräder im Fahrzeug. Die Koppeleinrichtung
kann ein riemengetriebenes Schneckengetriebe mit einem Lenkungsstellelement
sein, über
das eine Zahnstange betätigt
und ein Lenkungsvorgang unterstützt
wird. Die dabei untersetzte Lenkstellwellendrehzahl ist mit einer
entsprechenden Drehmomenterhöhung
verbunden, die an der Zahnstange wirkt. Beispiele für Lenkunterstützungseinrichtungen
finden sich in der
Die im Rotor eingesetzten Dauermagnete sind in der Regel so ausgelegt, dass diese ein sehr starkes Magnetfeld ausbilden. Dieses Magnetfeld kann bei der Montage des Elektromotors sehr problematisch sein, da die Gefahr besteht, dass es aufgrund der hohen Anziehungskräfte beim Einführen des Rotors in das mit dem Stator versehene Gehäuse zu einem Kontakt zwischen dem Rotor und dem Stator und zu Beschädigungen an diesen kommen kann. Dieser Gefahr kann dadurch begegnet werden, dass das Gehäuse bei der Montage zunächst beidseits geöffnet ist, der von der vorbestimmten Seite in das Gehäuse vermittels eines Werkzeuges eingeführte Rotor von der anderen Seite mit einem Haltewerkzeug gegriffen und, somit beidendig geführt, im Gehäuse positioniert wird. Diese Vorgehensweise ist aufwändig.The permanent magnets used in the rotor are usually designed to that they form a very strong magnetic field. This magnetic field can be very problematic in the assembly of the electric motor, as the There is a risk that it is due to the high attractions in the Introduction of Rotor in the housing provided with the stator to a contact between The rotor and the stator and damage to these can come. This danger can be countered by the fact that the housing at the assembly first open on both sides is that of the predetermined side in the housing by means of a tool introduced Rotor gripped from the other side with a holding tool and, thus led at both ends, in the case is positioned. This procedure is complicated.
Es ist Aufgabe der Erfindung, den Elektromotor für eine elektromechanische Lenkeinrichtung nach dem Oberbegriff des Anspruchs 1 so zu gestalten, dass die Montage des Rotors erleichtert durchführbar ist.It is the object of the invention, the electric motor for an electromechanical steering device after to make the preamble of claim 1 so that the assembly the rotor facilitates feasible is.
Diese Aufgabe wird bei einem Elektromotor nach dem Oberbegriff des Anspruchs 1 durch dessen kennzeichnenden Merkmale gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen aufgeführt.These Task is in an electric motor according to the preamble of the claim 1 solved by its characterizing features. Advantageous embodiments are in the subclaims listed.
Die Erfindung besteht darin, dass bei einem Elektromotor für eine elektromechanische Lenkung, der einen fest in einem Gehäuse angeordneten Stator, einen im Gehäuse drehbar gelagerten Rotor mit wenigstens einem Dauermagneten, eine Lenkstellwelle und eine Sensoreinrichtung für den Drehwinkel des Rotors im Gehäuse aufweist und dabei die Lenkstellwelle über eine Koppeleinrichtung mit den Vorderrädern des Fahrzeugs in Wirkverbindung steht, diese Lenkstellwelle als wenigstens einendig offene Hohlwelle ausgeführt ist.The Invention is that in an electric motor for an electromechanical Steering, a fixedly arranged in a housing stator, a in the case rotatably mounted rotor with at least one permanent magnet, a Steering shaft and a sensor device for the rotation angle of the rotor in the case has and the steering shaft via a coupling device with the front wheels the vehicle is in operative connection, this steering shaft as at least one end open hollow shaft is executed.
Damit kann die Lenkstellwelle mit dem Rotor und weiteren an dieser angeordneten Bauteilen, insbesondere einem Lagerschild und einem an diesem angeordneten Kugellager für die Lenkstellwelle, durch ein insbesondere automatisiertes Werkzeug erleichtert geführt und als Vormontageeinheit im Gehäuse angeordnet werden. Diese erleichterte Führung vereinfacht die Montage des Elektromotors. Die Hohlwelle führt überdies zu einer Gewichtsverminderung des Elektromotors. Zudem kommt, dass dessen Gehäuse als Gehäusetopf mit einem Gehäusedeckel ausgebildet sein kann, wodurch sich ein zweiter Gehäusedeckel erübrigt und damit auch eine Dichtstelle mit einer Dichtung entfällt. Des Weiteren wird die Anzahl der zu montierenden Bauteile reduziert, was sich wiederum in einer Verkürzung der Montagezeit auswirkt. Vorteilhaft kann der Sensorstator am Lagerschild und der Sensorrotor drehfest an der Lenkstellwelle angeordnet sein, so dass auch die Sensoreinrichtung Bestandteil der Vormontageeinheit ist. Ebenso ist die Anordnung einer Antriebsscheibe als Bestandteil der Koppeleinrichtung auf der Lenkstellwelle als weiteres Bauteil der Vormontageeinheit von Vorteil.In order to can the steering shaft with the rotor and further arranged at this Components, in particular a bearing plate and arranged on this Ball bearing for the steering shaft, facilitated by a particular automated tool guided and as a preassembly unit in the housing to be ordered. This simplified guide simplifies assembly of the electric motor. The hollow shaft also leads to a weight reduction of the electric motor. In addition, its housing is designed as a housing pot with a housing cover may be, whereby a second housing cover is unnecessary and This also eliminates a sealing point with a seal. Of Furthermore, the number of components to be assembled is reduced, which in turn results in a shortening affects the assembly time. Advantageously, the sensor stator on the bearing plate and the sensor rotor can be arranged in a rotationally fixed manner on the steering shaft, so that the sensor device part of the pre-assembly is. Likewise, the arrangement of a drive pulley as a component the coupling device on the steering shaft as another component the pre-assembly of advantage.
Zur erleichterten Montage des Elektromotors ist die Innenseite der Stirnwand des Gehäusetopfes mit einem zentral an dieser angeordneten Führungszapfen versehen, mit dem ein Führungsdorn in Eingriff gebracht wird, der vorher in die hohle Lenkstellwelle der gebildeten Vormontageeinheit eingeführt wird. Dieser weist wenigstens die Länge der Lenkstellwelle auf, ist vorteilhaft jedoch länger als diese, und ist frontseitig mit einer Aufnahmeöffnung für den Führungszapfen versehen. Dieser Führungsdorn wird mit der Vormontageeinheit mit einem Werkzeug definiert und so weit in den Gehäusetopf eingeschoben, dass die Aufnahmeöffnung in Eingriff mit dem Führungszapfen gelangt. Anschließend werden, wenn der Führungsdorn länger als die Lenkstellwelle ist, die Vormontageeinheit auf dem Führungsdorn bis zum Anschlag des Lagerschildes an das Gehäuse verschoben, wodurch diese ihre vorbestimmte Position im Gehäuse einnimmt, und danach der Führungsdorn zurückgezogen. Die größere Länge des Führungsdornes führt zu einer Erhöhung der Prozesssicherheit. Schließlich wird das Gehäuse verschlossen.to facilitated assembly of the electric motor is the inside of the end wall of the housing pot with provided centrally on this arranged guide pin, with a guide pin is engaged, the previously in the hollow steering shaft the pre-assembly unit is introduced. This one points at least the length the steering shaft, but is advantageously longer than this, and is front with a receiving opening for the guide pin Mistake. This guide thorn will defined with the pre-assembly unit with a tool and so far in the housing pot pushed in that the receiving opening in engagement with the guide pin arrives. Subsequently be when the guide pin longer as the steering shaft, the pre-assembly on the guide pin moved to the stop of the bearing plate to the housing, making this assumes its predetermined position in the housing, and then the guide pin withdrawn. The greater length of the guiding mandrel leads to an increase the process security. After all becomes the case locked.
Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels erläutert. In den zugehörigen Zeichnungen zeigen:The Invention will be explained below with reference to an embodiment. In the associated Drawings show:
Der
in
Die
Lenkstellwelle
- 11
- Gehäusetopfhousing pot
- 22
- Gehäusedeckelhousing cover
- 33
- Statorstator
- 44
- Rotorrotor
- 55
- Magnetträgermagnet carrier
- 66
- Dauermagnetpermanent magnet
- 77
- LenkstellwelleSteering stem
- 88th
- Lagerschildend shield
- 99
- Sensorstatorsensor stator
- 1010
- Sensorrotorsensor rotor
- 1111
- Antriebsscheibesheave
- 1212
- Getriebetransmission
- 1313
- Zahnstangerack
- 1414
- Kugellagerball-bearing
- 1515
- Kugellagerball-bearing
- 1616
- Führungszapfenspigot
- 1717
- Führungsdornguide pin
- 1818
- Griffstückgrip
- 1919
- Aufnahmeöffnungreceiving opening
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410007354 DE102004007354A1 (en) | 2004-02-16 | 2004-02-16 | Electric motor for electromechanical steering for a motor vehicle has stator rotor sensors and a steering shaft having at least one hollow end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410007354 DE102004007354A1 (en) | 2004-02-16 | 2004-02-16 | Electric motor for electromechanical steering for a motor vehicle has stator rotor sensors and a steering shaft having at least one hollow end |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004007354A1 true DE102004007354A1 (en) | 2005-09-01 |
Family
ID=34813379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410007354 Withdrawn DE102004007354A1 (en) | 2004-02-16 | 2004-02-16 | Electric motor for electromechanical steering for a motor vehicle has stator rotor sensors and a steering shaft having at least one hollow end |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004007354A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008021591A1 (en) | 2008-04-30 | 2009-11-05 | Volkswagen Ag | Electro mechanical steering has steering rod with toothing section, and input shaft is provided with steering gear, which cogs with toothing section of steering rod |
DE102008028768A1 (en) | 2008-06-17 | 2009-12-24 | Volkswagen Ag | Rack for rack-and-pinion steering and steering gear, has rack segment with toothing section, and another rack segment, where each of rack segment has connecting sections |
DE102009009031A1 (en) | 2009-02-16 | 2010-08-19 | Volkswagen Ag | Shaft-hub joint for connecting gear rod and stop ring of steering hub limiter, has shaft and hub fixed to each other by wire piece, where wire piece is arranged between one circulating groove and another circulating groove |
DE102009024830A1 (en) | 2009-06-13 | 2010-12-16 | Volkswagen Ag | Electromechanical steering for vehicle, has steering housing and steering rod that is extend by steering housing, where electric motor is provided with motor shaft |
DE102010037222A1 (en) * | 2010-08-30 | 2012-03-01 | Ovalo Gmbh | Actuator for steering system of vehicle, has input shaft mechanically and electrically coupled with steering handle such that shaft is rotated depending on steering movements, where steering angle sensor is integrated into bearing module |
DE102011109906A1 (en) | 2011-08-10 | 2013-02-14 | Volkswagen Aktiengesellschaft | Electromechanical steering gear for use in motor car, has ball screw in intervention with spindle portion of handlebar that is brought into layer free from play of ball screw and held in position by supporting device in backlash state |
DE102015014209A1 (en) * | 2015-11-04 | 2016-12-01 | Audi Ag | Method for assembling a rotary field machine comprising a rotor and a stator |
CN110920745A (en) * | 2018-09-20 | 2020-03-27 | 株式会社万都 | Rack assist electric power steering apparatus |
DE102018221859A1 (en) * | 2018-12-17 | 2020-06-18 | Bühler Motor GmbH | Commutator motor and series of commutator motors |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2817190A1 (en) * | 1978-04-20 | 1979-10-31 | Bosch Gmbh Robert | Power assisting servomotor drive - has drivers on single side of friction core, driven side lever working with spring ends |
EP1344710A2 (en) * | 1998-06-16 | 2003-09-17 | TRW Lucas Varity Electric Steering Limited | Improvements relating to electrical power assisted steering |
DE10216597A1 (en) * | 2002-04-15 | 2003-10-30 | Siemens Ag | Steering for a motor vehicle has electric steering aids with an electric servomotor commutated by control electronics and a resolver to detect the angular position of a rotor on the servomotor. |
-
2004
- 2004-02-16 DE DE200410007354 patent/DE102004007354A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2817190A1 (en) * | 1978-04-20 | 1979-10-31 | Bosch Gmbh Robert | Power assisting servomotor drive - has drivers on single side of friction core, driven side lever working with spring ends |
EP1344710A2 (en) * | 1998-06-16 | 2003-09-17 | TRW Lucas Varity Electric Steering Limited | Improvements relating to electrical power assisted steering |
DE10216597A1 (en) * | 2002-04-15 | 2003-10-30 | Siemens Ag | Steering for a motor vehicle has electric steering aids with an electric servomotor commutated by control electronics and a resolver to detect the angular position of a rotor on the servomotor. |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008021591A1 (en) | 2008-04-30 | 2009-11-05 | Volkswagen Ag | Electro mechanical steering has steering rod with toothing section, and input shaft is provided with steering gear, which cogs with toothing section of steering rod |
DE102008028768A1 (en) | 2008-06-17 | 2009-12-24 | Volkswagen Ag | Rack for rack-and-pinion steering and steering gear, has rack segment with toothing section, and another rack segment, where each of rack segment has connecting sections |
DE102009009031A1 (en) | 2009-02-16 | 2010-08-19 | Volkswagen Ag | Shaft-hub joint for connecting gear rod and stop ring of steering hub limiter, has shaft and hub fixed to each other by wire piece, where wire piece is arranged between one circulating groove and another circulating groove |
DE102009024830A1 (en) | 2009-06-13 | 2010-12-16 | Volkswagen Ag | Electromechanical steering for vehicle, has steering housing and steering rod that is extend by steering housing, where electric motor is provided with motor shaft |
DE102009024830B4 (en) | 2009-06-13 | 2022-10-06 | Volkswagen Ag | Electric Power Steering |
DE102010037222A1 (en) * | 2010-08-30 | 2012-03-01 | Ovalo Gmbh | Actuator for steering system of vehicle, has input shaft mechanically and electrically coupled with steering handle such that shaft is rotated depending on steering movements, where steering angle sensor is integrated into bearing module |
DE102010037222B4 (en) * | 2010-08-30 | 2017-01-05 | Ovalo Gmbh | vehicle steering |
DE102011109906A1 (en) | 2011-08-10 | 2013-02-14 | Volkswagen Aktiengesellschaft | Electromechanical steering gear for use in motor car, has ball screw in intervention with spindle portion of handlebar that is brought into layer free from play of ball screw and held in position by supporting device in backlash state |
DE102015014209A1 (en) * | 2015-11-04 | 2016-12-01 | Audi Ag | Method for assembling a rotary field machine comprising a rotor and a stator |
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 |
DE102018221859A1 (en) * | 2018-12-17 | 2020-06-18 | Bühler Motor GmbH | Commutator motor and series of commutator motors |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8120 | Willingness to grant licenses paragraph 23 | ||
8110 | Request for examination paragraph 44 | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140902 |