EP3010784A1 - Mécanisme de direction à pignon double pourvu d'un moteur électrique - Google Patents

Mécanisme de direction à pignon double pourvu d'un moteur électrique

Info

Publication number
EP3010784A1
EP3010784A1 EP14733085.6A EP14733085A EP3010784A1 EP 3010784 A1 EP3010784 A1 EP 3010784A1 EP 14733085 A EP14733085 A EP 14733085A EP 3010784 A1 EP3010784 A1 EP 3010784A1
Authority
EP
European Patent Office
Prior art keywords
pinion
shaft
rack
steering
steering gear
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Withdrawn
Application number
EP14733085.6A
Other languages
German (de)
English (en)
Inventor
Anatoli Schröder
Kai Vohwinkel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Presta AG
Original Assignee
ThyssenKrupp Presta AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Presta AG filed Critical ThyssenKrupp Presta AG
Publication of EP3010784A1 publication Critical patent/EP3010784A1/fr
Withdrawn legal-status Critical Current

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
    • B62D5/0421—Electric motor acting on or near steering gear
    • 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
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • 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
    • B62D5/0409—Electric motor acting on the steering column
    • 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
    • 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

Definitions

  • the present invention relates to a steering gear for motor vehicles having the features of the preamble of claim 1.
  • a design of electrically assisted steering gear for motor vehicles is preferred in which the supporting force is introduced via a second toothing in the rack.
  • steering gear in which the servo drive acts on the rack via a second steering pinion and a second toothing.
  • Such steering gears are shown in the published patent applications DE 10 2005 022 867 AI, DE 10 2007 004 218 AI and WO 2006/138209 A2. These steering gears have a relatively large volume of construction, since the servo drive is provided separately next to the engagement steering pinion / rack. In addition, the guide of the rack must be kept free of play in the area of the steering pinion via a pressure piece. This storage is with
  • a double-pinion steering gear is known in which the two steering pinions are arranged opposite to the rack at an angle of 90 ° to the rack.
  • the two steering pinions are mechanically positively coupled to an opposite rotation by means of spur gears or bevel gears. Due to the geometric arrangement of the pinion each other is the elimination of a complex pressure piece in the past
  • At least one steering pinion is with a
  • Servomotor coupled, which supports the steering.
  • the rotation of the steering shaft is detected by a sensor.
  • the disadvantage of the arrangement is that it is due to the location of the servo drive and the sensor too
  • a steering gear in particular for motor vehicles, with a steering housing in which a rack is longitudinally displaceable and connected for pivoting steerable wheels with these, wherein the rack is provided with a first toothed segment, which meshes with a first pinion of a pinion shaft and wherein the pinion shaft is indirectly connected to a steering wheel via an input shaft, the rack having a second toothed segment opposite to the first toothed segment with respect to the longitudinal axis of the rack, and a second pinion engaging with the second toothed segment is provided, wherein an electric motor is provided which indirectly drives the first pinion mechanically positively coupled with the second pinion to counter-rotation in which the electric motor drives a gear shaft which surrounds the pinion shaft and which is connected via a gear to the pinion shaft.
  • a rotation angle sensor on the input shaft and a rotation angle sensor on the pinion shaft are provided, so that the applied steering torque and the position of the rotor can be determined.
  • the transmission is a reduction gear.
  • the motor can thus be designed compactly with high speed and low torque.
  • the electric motor drives the
  • Gear shaft via a belt drive or a gear drive.
  • Spur gear be formed.
  • the rack between the first pinion and the second pinion is arranged, wherein a plane spanned by the axes of rotation of the pinion plane intersects the longitudinal axis of the rack at an inclination angle smaller than 90 °.
  • the axes of rotation of the two opposing pinions are arranged at an acute angle to each other.
  • the engagement pinion / rack can be adjusted without pressure piece.
  • toothed segments are arranged in mutually inclined planes, in correspondence with the pinion arranged at an acute angle to each other.
  • the drive of the second pinion bearing has a bearing assembly for adjusting the play of the pinion / rack engagement.
  • Fig. 1 a schematic arrangement of an inventive
  • Fig. 2 a schematic arrangement of an inventive
  • FIG. 3 shows a side view of the input shaft in conjunction with the pinion shaft and a longitudinal section and two cross sections of the arrangement
  • Fig. 4 a spatial representation of the torque sensors
  • Encoder magnets on the input shaft in a preassembled state as well
  • Fig. 5 a longitudinal section of the pinion / rack engagement.
  • Electric motor 1 shown as a servo drive of a steering gear.
  • Electric motor 1 is in addition to an input shaft 2, which is non-rotatably in communication with the steering shaft connected to the steering wheel, not shown here, is arranged.
  • a per se known torsion bar 3 connects on the one hand the input shaft 2 with a pinion shaft 4 in the axial direction, so that they have a defined position to each other.
  • the torsion bar 3 is pressed at one end into a round centered bore 5 of the pinion shaft 4. At the other end it is connected to the input shaft 2, in which it passes through the input shaft 2 centered over the entire length and both are pierced transversely at the end and pinned.
  • Torsion bar 3 is tapered in a central portion.
  • the input shaft 2 has for receiving the torsion bar 3 and the pinion shaft 4 a
  • the second paragraph 8 of the recess 6 serves as a collar for the pinion shaft 4 and is arranged at the end of the taper of the torsion bar 3. In the area of the second paragraph 8 are the
  • oval cylindrical recess 6 are rotated by a certain angular range until a stop serves as a mechanical entrainment. This limitation represents a protection of the torsion bar 3.
  • the second paragraph 8 is followed by the third paragraph 9, in which the recess 6 again
  • the input shaft 2 surrounds the pinion shaft 4 with little play, with needle bearings 10 on the pinion shaft 4 ensure that the input shaft 2 is rotatably mounted about the pinion shaft 4.
  • the input shaft 2 has on the outside a first projection 11 and a second projection 12, wherein the first projection 11 is in the region of the first paragraph 7 of the recess 6.
  • the rotation of the torsion bar 3 is, as shown in Figure 3 and Figure 4, detected by two magnetic rotation angle sensors 13, 14.
  • the rotation of the torsion bar 3 is, as shown in Figure 3 and Figure 4, detected by two magnetic rotation angle sensors 13, 14.
  • Rotation angle sensors 13, 14 each have a magnetic ring 15, 16 as
  • the transmitter magnets 15, 16 are fixed on the input shaft 2 and the pinion shaft 4 via an adhesive connection.
  • the sensor element 17, 18 may be formed as a Hall or magnetoresistive sensor.
  • optical sensors consisting of a light-emitting and a photosensitive component or strain gauges are conceivable.
  • a first encoder magnet 15 is disposed on the input shaft 2 in abutment with the annular collar formed by the second projection 12 in front of the pinion shaft 4 and a second
  • Encoder magnet 16 is arranged on the pinion shaft 4. The position of
  • Magnet rings 15, 16 to each other in a rotation of the torsion bar 3 gives the torsion angle of the torsion bar 3, and it is calculated with the known Torsionsfederkonstante the torsion bar 3 the fitting
  • the arranged next to the input shaft 4 electric motor 1 has a rotor and a stator.
  • the rotor is realized with a permanent magnet and the fixed stator comprises coils, which from a
  • the electronic circuit are triggered offset in time to create a rotating field, which causes a torque at the permanently excited rotor.
  • the rotor indirectly drives a transmission 19 via a
  • the rotor is connected to the transmission shaft 20 via a belt drive 21 (FIG. 1) or gear drive 22 (FIG. 2).
  • the gear drive 22 may be formed depending on the arrangement as in Fig. 1 as bevel gear or as a spur gear.
  • the transmission shaft 20 is hollow and is penetrated by the pinion shaft 6 with clearance.
  • the transmission 19 is coaxial and designed as a reduction gear, the output speed of the transmission shaft 20 of the transmission 19 is reduced while the torque at the with a
  • the drive plate not shown here has a concentric bearing seat for a first gear 23.
  • the first gear 23 is rotatably connected to the drive plate and the penetrating pinion shaft 4, so that the drive plate drives the pinion shaft 4 indirectly.
  • the first gear 23 meshes with a second gear 24, which rotatably surrounds a second pinion 25 at an end close to the drive.
  • the pinion shaft 4 has at its end remote from the drive a first pinion 26 which is mechanically positively coupled to the second pinion 25 via the two gears 23, 24 at their drive-near ends to an opposite rotation.
  • Figure 5 shows the pinion 25, 26 and their engagement in a rack 27 in one
  • the spaced parallel aligned pinions 25, 26 are opposedly engaged with a rack segment 28, 29 on the rack 27, respectively, with the rack segments 28, 29 facing each other on the rack 27 with respect to the longitudinal axis.
  • the rack 27 is in a steering housing perpendicular to a longitudinal axis 30 of the
  • the second pinion on the drive distant bearing on a bearing assembly with two sleeves wherein the outer sleeve forms a guide and the inner sleeve forms a sliding piece.
  • the sliding piece is slidably disposed along inclined guide surfaces, so that when moving the sliding piece, the pinion on the engagement pinion / rack is deliverable.
  • a spring between the sleeves and that as a set screw
  • the reduction gear is particularly preferably designed as a cycloidal gear.
  • the coaxial transmission is designed as a planetary gear or as a wave gear.
  • the axes of rotation of the two opposing pinions are arranged at an acute angle to each other and the two rack segments, which are located on the rack relative to the longitudinal axis, are arranged in mutually inclined planes, because in this way Backlash of the teeth engagement by a bias of the rack can be achieved in the included angle into it.
  • the pinions have an offset to each other in the longitudinal direction of the rack, so that space can be saved with a constant coupling width of the pinion.
  • the torsion bar detects a rotation of the steering shaft
  • Electric motor that drives the pinion shaft via the driven by means of belt drive or gear drive with the rotor.
  • the coaxial transmission transmits the reduced output speed of the transmission shaft to the active first pinion. Due to the positive mechanical coupling of the first pinion with the second pinion, the rack is driven from opposite sides to a longitudinal displacement, which causes a pivoting of the steered wheels.
  • the steering assist force generated by the servo motor is thus introduced via two pinions in the rack.
  • the steering gear according to the invention has preferred compact

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)

Abstract

L'invention concerne un mécanisme de direction, en particulier pour des véhicules automobiles. Ce mécanisme est pourvu d'un carter dans lequel une crémaillère (27) est montée de manière à pouvoir se déplacer longitudinalement et, pour faire pivoter des roues directrices, est reliée à ces dernières. La crémaillère (27) est pourvue d'un premier segment denté (29), lequel s'engrène avec un premier pignon (26) d'un arbre de pignon (4) et l'arbre de pignon (4) étant relié indirectement à une roue directrice par l'intermédiaire d'un arbre d'entrée (2). La crémaillère (27) comprend un deuxième segment denté (28), lequel est opposé au premier segment denté (29) par rapport à l'axe longitudinal de la crémaillère (27). Selon l'invention, un deuxième pignon (25) est engrené avec le deuxième segment denté (28), un moteur électrique (1) entraîne indirectement le premier pignon (26) accouplé de force mécaniquement au deuxième pignon (28) par rapport à une rotation en sens inverse. Le moteur électrique (1) entraîne un arbre de transmission (20), lequel entoure l'arbre de pignon (4) et lequel est relié à l'arbre de pignon (4) par l'intermédiaire d'une transmission (19).
EP14733085.6A 2013-06-21 2014-06-18 Mécanisme de direction à pignon double pourvu d'un moteur électrique Withdrawn EP3010784A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013010360.6A DE102013010360A1 (de) 2013-06-21 2013-06-21 Doppelritzel-Lenkgetriebe mit Elektromotor
PCT/EP2014/001653 WO2014202215A1 (fr) 2013-06-21 2014-06-18 Mécanisme de direction à pignon double pourvu d'un moteur électrique

Publications (1)

Publication Number Publication Date
EP3010784A1 true EP3010784A1 (fr) 2016-04-27

Family

ID=51022280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14733085.6A Withdrawn EP3010784A1 (fr) 2013-06-21 2014-06-18 Mécanisme de direction à pignon double pourvu d'un moteur électrique

Country Status (5)

Country Link
US (1) US9669865B2 (fr)
EP (1) EP3010784A1 (fr)
CN (1) CN105324292B (fr)
DE (1) DE102013010360A1 (fr)
WO (1) WO2014202215A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016013269A1 (de) 2016-11-09 2018-05-09 Thyssenkrupp Ag Zahnstangenlenkung für ein Kraftfahrzeug mit Schneckengetriebe
DE102016013272A1 (de) 2016-11-09 2018-05-09 Thyssenkrupp Ag Verfahren zur vereinfachten Montage eines Zahnstangenlenkgetriebes einer Zahnstangenlenkung
EP3681785B1 (fr) 2017-09-13 2022-03-23 thyssenkrupp Presta AG Commande de système de direction assistée électromécanique utilisant uniquement un signal de couple de direction mesuré ou estimé
DE102017123150A1 (de) * 2017-10-05 2019-04-11 Thyssenkrupp Ag Elektromechanische Servolenkung mit Schraubradgetriebe und einer Kompensationseinrichtung zur Abstützung eines Loslagers am Getriebegehäuse
DE102019124973A1 (de) * 2019-07-10 2021-01-14 Schaeffler Technologies AG & Co. KG Sensoranordnung zur Erfassung eines Lenkmomentes sowie einer absoluten Winkelposition und Sensorvorrichtung mit dieser Sensoranordnung
US11891123B2 (en) * 2020-10-16 2024-02-06 Sandcraft Llc Utility terrain vehicle (UTV) steering rack support assembly
RU2764105C1 (ru) * 2020-11-11 2022-01-13 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Зубчато-реечный привод подачи металлорежущего станка с ЧПУ
DE102021213068A1 (de) 2021-11-22 2023-05-25 Zf Friedrichshafen Ag Lenkachse für ein lenkbares Fahrzeug und Flurförderzeug
DE102021213067A1 (de) 2021-11-22 2023-05-25 Zf Friedrichshafen Ag Lenkantrieb für eine Lenkachse eines lenkbaren Fahrzeugs, Lenkachse und Flurförderzeug
DE102021213063B4 (de) 2021-11-22 2023-08-03 Zf Friedrichshafen Ag Lenkantrieb für eine Lenkachse eines lenkbaren Fahrzeugs, Lenkachse und Flurförderzeug
KR20230107969A (ko) * 2022-01-10 2023-07-18 에이치엘만도 주식회사 전동식 파워 스티어링 장치(eps)의 조향축 연결 구조

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021591A1 (de) * 2008-04-30 2009-11-05 Volkswagen Ag Elektromechanische Lenkung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1371625A (en) 1971-05-11 1974-10-23 Cam Gears Ltd Rack and pinion assemblies
US3965757A (en) * 1973-12-12 1976-06-29 Combustion Engineering, Inc. Scram release for a control rod
JPS58110373A (ja) * 1981-12-22 1983-06-30 Yamada Seisakusho:Kk 自動車用ラックピニオン型操向装置
SE469949B (sv) * 1991-02-15 1993-10-11 Tom Petterson Kraftöverföringsanordning för linjär rörelse
US20040045387A1 (en) * 2002-09-06 2004-03-11 Visteon Global Technologies, Inc. Barrel-shaped pinion
JP2005329784A (ja) * 2004-05-19 2005-12-02 Hitachi Ltd 電動パワーステアリング装置
US20060278466A1 (en) 2005-06-13 2006-12-14 Bo Cheng Electric power steering systems
DE102007002572A1 (de) * 2007-01-18 2007-12-06 Daimlerchrysler Ag Lenksystem mit Stelleinrichtung und Planetengetriebe
DE102007004218A1 (de) 2007-01-27 2008-09-04 Zf Lenksysteme Gmbh Hilfskraftlenkung
DE102007000962A1 (de) * 2007-10-10 2009-04-16 Zf Lenksysteme Gmbh Lenksystem, insbesondere für ein Kraftfahrzeug
ES2386398T3 (es) * 2009-02-09 2012-08-20 Thyssenkrupp Presta Aktiengesellschaft Engranaje para dispositivo de dirección para vehículos
DE102010027553B4 (de) * 2010-07-19 2015-05-28 Thyssenkrupp Presta Aktiengesellschaft Lenkgetriebe mit Doppelritzel
DE102013010362B4 (de) * 2013-06-21 2021-03-11 Thyssenkrupp Presta Ag Doppelritzel-Lenkgetriebe mit Hohlwellenmotor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021591A1 (de) * 2008-04-30 2009-11-05 Volkswagen Ag Elektromechanische Lenkung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014202215A1 *

Also Published As

Publication number Publication date
US9669865B2 (en) 2017-06-06
DE102013010360A1 (de) 2014-12-24
US20160137219A1 (en) 2016-05-19
WO2014202215A1 (fr) 2014-12-24
CN105324292B (zh) 2019-01-25
CN105324292A (zh) 2016-02-10

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