DE102009035309A1 - Steering gear for use in electric power steering system, has epicyclic gear whose inputs are drive-operatively connected to steering column and steering moment supporting unit respectively and output is drive-operatively connected to screw - Google Patents
Steering gear for use in electric power steering system, has epicyclic gear whose inputs are drive-operatively connected to steering column and steering moment supporting unit respectively and output is drive-operatively connected to screw Download PDFInfo
- Publication number
- DE102009035309A1 DE102009035309A1 DE200910035309 DE102009035309A DE102009035309A1 DE 102009035309 A1 DE102009035309 A1 DE 102009035309A1 DE 200910035309 DE200910035309 DE 200910035309 DE 102009035309 A DE102009035309 A DE 102009035309A DE 102009035309 A1 DE102009035309 A1 DE 102009035309A1
- Authority
- DE
- Germany
- Prior art keywords
- steering
- gear
- planetary gear
- drive
- operatively connected
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
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- 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
- B62D5/008—Changing the transfer ratio between the steering wheel and the steering gear by variable supply of energy, e.g. by using a superposition gear
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- 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
- B62D5/0421—Electric motor acting on or near steering gear
- B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
- B62D5/0427—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel the axes being coaxial
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Lenkgetriebe mit elektrischer Lenkmomentunterstützung umfassend einen Gewindetrieb, der eine Umlaufmutter und eine in der Umlaufmutter laufende Gewindespindel umfasst, die durch Verdrehen der Umlaufmutter entlang einer Spindellängsachse axial verschiebbar ist, eine Lenkmomentunterstützungseinheit und ein Umlaufgetriebe mit zumindest einem ersten und einem zweiten Eingang sowie einem Ausgang.The The present invention relates to a steering gear with electric Including steering torque assistance a screw, the one Umlaufmutter and one in the nut Running threaded spindle includes, by turning the nut along a spindle axis axially displaceable, a steering torque assist unit and a planetary gear with at least a first and a second input and a Output.
Das erfindungsgemäße System baut auf einer elektrisch angetriebenen Zahnstangenlenkung auf. Bekannte am Markt befindliche Lenksysteme dieser Art bestehen aus einem, auch aus hydraulischen Lenkungen bekannten Ritzel-Zahnstangen Getriebe und einer zusätzlichen Motor-Getriebeeinheit zur entsprechenden Lenkmomentunterstützung (EPS-Funktion = Electric Power Steering). Weiterhin sind auch Systeme mit Gewindetrieb zur Umwandlung der Drehbewegung einer Lenksäule in eine Hubbewegung der Zahnstange bekannt.The inventive system builds on an electrically driven rack and pinion steering. Known on the market steering systems of this type consist of a, also known from hydraulic steering pinion rack gears and an additional one Engine transmission unit for the corresponding steering torque support (EPS function = Electric Power Steering). Furthermore, systems with screw to convert the Rotary movement of a steering column in a stroke movement of the rack known.
Wird über die Momentenunterstützung hinaus auch eine Winkelüberlagerung (EAFS-Funktion = Electric Active Front Steering) gewünscht, umfassen bestehende Systeme meist zusätzlich zum eigentlichen Lenkgetriebe eine separierten Motor-Getriebe Einheit.Will about the torque assistance In addition, an angle overlay (EAFS function = Electric Active Front Steering) existing systems usually in addition to the actual steering gear a separate engine-gear unit.
Bauraum, Gewicht und Kosten von bekannten EPS-Lenksystemen, insbesondere von solchen mit EAFS-Funktion sind daher oftmals relativ groß bzw. hoch.space, Weight and cost of known EPS steering systems, in particular Of those with EAFS function are therefore often relatively large or high.
Es ist eine Aufgabe der vorliegenden Erfindung ein Lenkgetriebe der eingangs genannten Art anzugeben, das einen einfachen Aufbau besitzt, kostengünstig herstellbar ist und nur einen geringen Bauraum benötigt.It An object of the present invention is a steering gear of specify the type mentioned above, which has a simple structure, economical can be produced and requires only a small space.
Ausgehend von einem Lenkgetriebe der eingangs genannten Art wird diese Aufgabe erfindungsgemäß dadurch gelöst, dass der erste Eingang mit einer Lenksäule antriebswirksam verbunden oder verbindbar ist, dass der zweite Eingang mit der Lenkmomentunterstützungseinheit antriebswirksam verbunden ist und dass der Ausgang mit der Umlaufmutter antriebswirksam verbunden ist.outgoing From a steering gear of the type mentioned is this task according to the invention thereby solved, that the first input is drivingly connected to a steering column or connectable to the second input with the steering torque assist unit is drivingly connected and that the output with the circulating nut drive effective connected is.
Bereits bei einer Ausführung ohne EAFS-Funktion wird bei dem erfindungsgemäßen Lenkgetriebe auf die Verwendung von zwei parallelen Getrieben (Ritzel-Zahnstange und Gewindetrieb) verzichtet, so dass die bei den bekannten Systemen erforderliche Zahnstangenverzahnung samt Antriebsritzel vollständig entfallen kann.Already in one execution without EAFS function is in the steering gear according to the invention to use of two parallel gears (pinion rack and screw drive), so that required in the known systems rack and pinion complete with drive pinion can be omitted.
Bei der erweiterten Ausführung der Erfindung (EPS- und EAFS-Funktion) wird durch Implementierung nur eines zusätzlichen Motors bei geringen Anpassungen, die Winkelüberlagerung direkt im eigentlichen Lenkgetriebe ermöglicht. Es ist also im Gegensatz zu den bekannten Systemen nur eine Getriebeeinheit für EPS- und EAFS-Funktion in einem gemeinsamen Lenkgetriebe nötig, wobei durch die erfindungsgemäße Verschaltung der Ein- und Ausgänge des Umlaufgetriebes die Komplexität gegenüber bekannten Systemen deutlich verringert werden kann. Durch diese Reduktion von Komplexität können Bauraum, Gewicht und Kosten von bekannten EPS Lenksystemen, insbesondere von solchen mit EAFS-Funktion verringert werden. Dabei bleiben bei der erfindungsgemäßen elektromechanischen Hilfskraftlenkung die funktionalen Eigenschaften bekannter System (Dynamikanforderungen, max. Spurstangenkräfte, etc.) erhalten.at the extended version invention (EPS and EAFS function) is implemented only one additional Motors with minor adjustments, the angle overlay directly in the actual Steering gear allows. So it is in contrast to the known systems, only one gear unit for EPS and EAFS function needed in a common steering gear, taking by the interconnection according to the invention the inputs and outputs of the planetary gear the complexity compared to known systems clearly can be reduced. Due to this reduction in complexity, installation space, Weight and cost of known EPS steering systems, in particular be reduced by those with EAFS function. Stay with the Electromechanical according to the invention Power steering the functional characteristics of known system (Dynamic requirements, maximum tie rod forces, etc.) received.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben; in dieser zeigen:The Invention will now be described with reference to an embodiment with reference closer to the drawing described; in this show:
Zum
Antreiben der Kugelumlaufspindel
Das
Lenkrad
Der
erste Eingang
Das
erste Hohlrad
Der
Planetenradträger
Der
zweite Planetenradabschnitt
Das
zweite Hohlrad
Durch
den Elektromotor
In
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910035309 DE102009035309A1 (en) | 2009-07-30 | 2009-07-30 | Steering gear for use in electric power steering system, has epicyclic gear whose inputs are drive-operatively connected to steering column and steering moment supporting unit respectively and output is drive-operatively connected to screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910035309 DE102009035309A1 (en) | 2009-07-30 | 2009-07-30 | Steering gear for use in electric power steering system, has epicyclic gear whose inputs are drive-operatively connected to steering column and steering moment supporting unit respectively and output is drive-operatively connected to screw |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009035309A1 true DE102009035309A1 (en) | 2011-02-03 |
Family
ID=43402564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910035309 Withdrawn DE102009035309A1 (en) | 2009-07-30 | 2009-07-30 | Steering gear for use in electric power steering system, has epicyclic gear whose inputs are drive-operatively connected to steering column and steering moment supporting unit respectively and output is drive-operatively connected to screw |
Country Status (1)
Country | Link |
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DE (1) | DE102009035309A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3021615A1 (en) * | 2014-05-27 | 2015-12-04 | Peugeot Citroen Automobiles Sa | DIRECTION HOUSING FOR A MOTOR VEHICLE, COMPRISING AN ELECTRIC MOTOR AND A REDUCER AROUND THE TRANSVERSE AXIS |
CN108423065A (en) * | 2018-05-17 | 2018-08-21 | 吉林大学 | A kind of small teeth number difference planet gear active front steering system and its control method |
DE102022120885A1 (en) | 2022-08-18 | 2024-02-29 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Steering device for a vehicle, vehicle and method for operating a steering device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005019435A1 (en) * | 2005-04-25 | 2006-10-26 | Thyssenkrupp Presta Steertec Gmbh | Power steering for motor vehicle has steering wheel and steering column engaging with ball race around gear rack through cone wheel gearing |
WO2007026801A1 (en) * | 2005-08-31 | 2007-03-08 | Thk Co., Ltd. | Steering device and movement converting device used therefor |
DE102007010003A1 (en) * | 2007-03-01 | 2008-09-11 | Magna Powertrain Ag & Co Kg | Steering gear for a vehicle steering arrangement comprises a peripheral nut connected to a steering wheel and a steering angle transfer unit for selectively driving the peripheral nut to produce an effective steering angle |
US20090071744A1 (en) * | 2007-09-17 | 2009-03-19 | Hyundai Mobis Co., Ltd. | Gear box-typed active front steering system in vehicle |
-
2009
- 2009-07-30 DE DE200910035309 patent/DE102009035309A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005019435A1 (en) * | 2005-04-25 | 2006-10-26 | Thyssenkrupp Presta Steertec Gmbh | Power steering for motor vehicle has steering wheel and steering column engaging with ball race around gear rack through cone wheel gearing |
WO2007026801A1 (en) * | 2005-08-31 | 2007-03-08 | Thk Co., Ltd. | Steering device and movement converting device used therefor |
DE102007010003A1 (en) * | 2007-03-01 | 2008-09-11 | Magna Powertrain Ag & Co Kg | Steering gear for a vehicle steering arrangement comprises a peripheral nut connected to a steering wheel and a steering angle transfer unit for selectively driving the peripheral nut to produce an effective steering angle |
US20090071744A1 (en) * | 2007-09-17 | 2009-03-19 | Hyundai Mobis Co., Ltd. | Gear box-typed active front steering system in vehicle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3021615A1 (en) * | 2014-05-27 | 2015-12-04 | Peugeot Citroen Automobiles Sa | DIRECTION HOUSING FOR A MOTOR VEHICLE, COMPRISING AN ELECTRIC MOTOR AND A REDUCER AROUND THE TRANSVERSE AXIS |
CN108423065A (en) * | 2018-05-17 | 2018-08-21 | 吉林大学 | A kind of small teeth number difference planet gear active front steering system and its control method |
DE102022120885A1 (en) | 2022-08-18 | 2024-02-29 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Steering device for a vehicle, vehicle and method for operating a steering device |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R082 | Change of representative |
Representative=s name: RAUSCH, GABRIELE, DIPL.-PHYS. DR.RER.NAT., DE |
|
R081 | Change of applicant/patentee |
Owner name: MAGNA POWERTRAIN GMBH & CO KG, AT Free format text: FORMER OWNER: MAGNA POWERTRAIN AG & CO. KG, LANNACH, AT |
|
R082 | Change of representative |
Representative=s name: RAUSCH, GABRIELE, DIPL.-PHYS. DR.RER.NAT., DE |
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R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |