EP1843931A1 - Direction dotee d'un systeme sac gonflable et son mode de fonctionnement - Google Patents

Direction dotee d'un systeme sac gonflable et son mode de fonctionnement

Info

Publication number
EP1843931A1
EP1843931A1 EP06705917A EP06705917A EP1843931A1 EP 1843931 A1 EP1843931 A1 EP 1843931A1 EP 06705917 A EP06705917 A EP 06705917A EP 06705917 A EP06705917 A EP 06705917A EP 1843931 A1 EP1843931 A1 EP 1843931A1
Authority
EP
European Patent Office
Prior art keywords
steering
airbag
gear
gear set
steering shaft
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Withdrawn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
EP06705917A
Other languages
German (de)
English (en)
Inventor
Helmut Müller
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 EP1843931A1 publication Critical patent/EP1843931A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • B60R21/2035—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/10—Hubs; Connecting hubs to steering columns, e.g. adjustable
    • B62D1/105—Non-rotatable hubs, e.g. the central part of the steering wheel not rotating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
    • B62D1/192—Yieldable or collapsible columns
    • 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

Definitions

  • the invention relates to a steering system with an airbag assembly and an operating method therefor.
  • the invention is concerned with a non-rotating driver airbag in a steering wheel in an automobile.
  • Positionally adjustable steering systems which are in use today and are therefore known from practice have in the electrical design almost all of them a motor and, via transmission, in each case the vertical or horizontal adjustment.
  • the present invention has and aims to improve the existing technique.
  • a steering is provided, wherein a steering shaft is provided, which is interrupted by a motion-deflecting gear set, and wherein a connecting gear is pivotally mounted about the "standing" center of a steering shaft between the "gear set".
  • a ratio of the steering wheel revolutions is regulated depending on the speed.
  • the present invention provides a steering with a safety steering column with stagnant airbag, variable steering ratio and electrical position adjustment in optimally small size.
  • a position adjustment drive is mounted in the center of a steering shaft in a steering and thus does not claim any separate space outside of the steering shaft.
  • a steering ratio adjustment drive and a position adjustment drive are fastened in the center of a steering shaft.
  • a steering ratio adjustment drive is positioned to save space in the center of a steering shaft.
  • the airbag is not rotationally fixed thereto by the non-rotating middle part of the steering shafts.
  • head impact load absorbers are centric and thus easily installed.
  • a gearshift housing moves telescopically to the steering column.
  • a backlash-free and easy-running motion-redirecting wheel set is used
  • the steering gear may be "turned over" or the pinion may be on the opposite side to realize that the wheels are not rotating in reverse to the steering wheel movement.
  • This steering can be interrupted in the steering shaft or the power flow and the rotational movement are guided past a fixed area. Additionally or alternatively, it may be provided that the fixed area is used for fastening various adjusting members, and / or that the rotational movement and the steering torque is guided around the fixed area by means of a gear set.
  • the latter variant can be further developed in that the j e election ends of the broken steering shaft are provided with a bevel gear and connected to a suitable bevel gear, and / or that a insectskegelrad is pivotally mounted about the pivot point of the steering shafts, and / or that a gear set to the fixed area is stored.
  • a gear set is preferably pivoted by means of an actuator, for. B.
  • a worm meshing in a worm wheel rotating about the "fixed" area, or preferably a gear set is alternatively pivotable by means of an actuator, for.
  • a gear set can furthermore be provided such that it can be pivoted in a computer-controlled manner, resulting in a variable steering angle sub-ratio, wherein preferably a gear set is controlled such that the steering rotational-angle variation is dependent on the vehicle speed (city / highway), or preferably a gear set is controlled such that the steering rotation angle variation is dependent on the steering angle and the vehicle speed (parking).
  • an embodiment explained above can be configured with an engine and a transmission of the adjustment unit such that that this mechanism is to be accommodated within the lower steering shaft and the "fixed" area.
  • an adjusting mechanism may be designed in such an alternative that the actuating gear in addition to the pivoting of the gear set, the longitudinal and / or height adjustment of the steering column additionally takes over.
  • a further preferred variant is that a servomotor and a transmission for adjusting a steering column in horizontal and vertical direction are housed within a lower steering shaft and a "fixed" area.
  • a servo motor and a "spindle gear" are housed alone for the horizontal movement of a steering column in a lower steering shaft 'and in a fixed area.
  • a connection of an airbag and / or a switch unit is provided on a fixed central area, and / or equipment for attachment of an airbag is provided with one or more switchable load absorbers, and / or equipment of a fixture an airbag is provided with a pyrotechnic driven movement unit to pull the airbag under certain crash conditions of a driver.
  • a connection of a Lenkkla- lenhebelgepuruses be provided such that it is not rotatable, j edoch longitudinally displaceable with a steering wheel and an airbag is moved horizontally, so is always in the same position to the stationary airbag and the rotating steering wheel.
  • Fig. 1 and 2 show a schematic and sectional detail view of an embodiment of a steering system
  • Fig. 3 and 4 show in a longitudinal and a cross section an embodiment of a change gear
  • Fig. 5 and 6 show in a longitudinal and a cross section a further embodiment of a switching gear
  • Fig. 7 shows in a longitudinal section an embodiment of an actuator for longitudinal and vertical adjustment of the steering column placed in the lower steering shaft
  • Fig. 8 shows in a longitudinal section yet another embodiment of a steering column.
  • the Fig. 1 and 2 show a schematic and sectional detail view of a steering in the automobile sector.
  • This steering includes a steering shaft, which is divided into upper steering shaft 1, a telescopic part 2 of the upper steering shaft and a lower steering shaft 3.
  • the upper steering shaft 1 with the telescopic part 2 of the upper steering shaft ends with a gear 4.
  • the telescopic part 2 of the upper steering shaft is mounted in bearings 5 and 6.
  • the lower steering shaft 3, the telescopic part 2 and the upper steering shaft 1 are displaceable, but connected to each other without play in the direction of rotation with positive locking.
  • the lower steering shaft 3 and the telescopic part 2 of the upper steering shaft 1 are mounted in an outer housing 9 of the steering column.
  • the lower steering shaft 3 is provided as well as the upper steering shaft 1 at its upper end with a gear 10.
  • the gear 4 and the gear 10 are coupled to a gear 11.
  • the gear 11 is supported by bearings 12 and 13 on a bearing pin 14, the part of an approx. + 120 degrees pivotable housing 15 is.
  • the pivotable housing 15 is mounted with the bearings 16 and 17 on a reversing gear 18, which is flanged with a central actuator 19.
  • the pivotable housing 15 is provided with a worm wheel 20 and a worm drive 21.
  • the worm drive 21 is performed by the switching gear 18, which is speed-dependent controlled by means of a computer (not shown).
  • the reversing gear 18 and the servo motor 19 are screwed to the outer housing 9 and thus stationary.
  • the servo motor 19 with power and control pulses and the changeover gear 18 is supplied with the switching pulses and an airbag 23 and standing switch 24 are connected near the airbag 23.
  • a lower standpipe 25 of the airbag 23 is fixed.
  • an upper standpipe 26 which, although longitudinally displaceable, but is positively secured against rotation (not shown).
  • the airbag 23 is thus slidably and non-rotatably connected to the change gear 18.
  • the upper standpipe 26 is positively provided with a nut 27 in which a threaded spindle 28 runs. This threaded spindle 28 is driven by the change-over gearbox 18 when the shift position is appropriate.
  • the upper standpipe 26 is expediently designed alternatively as a load limiter 30. Shown is a Wellrohrlastbegrenzer. This results in an increasing load absorption characteristic.
  • the load limiter 30 is designed as a "drop tube" (shown later as an alternative), a relatively constant load characteristic is obtained.
  • a supply line 31 for the supply of the airbag 23 and the switch 24 are guided by this standing upper standpipe 26, the "stationary" nut 27 and the change gear 18 to the plug 22.
  • a housing 32 for receiving the airbag 23 and the switch 24 is attached.
  • a thrust bearing 34 is installed. This thrust bearing 34 also ensures a low-friction running of the upper steering shaft 1 to the upper standpipe 26th
  • Another thrust bearing 34 is installed between the upper steering shaft 1 and a shift lever housing 35 to take along the latter axially in horizontal / axial comfort longitudinal adjustment.
  • the shift lever housing 35 is longitudinally displaceable, but not rotatably form-fitting (not shown).
  • a pyrotechnic charge 36 is alternatively inserted, which is ignited in a small, far forward sitting person alternatively and in each case in the crash final phase.
  • a pyrotechnic charge 36 is alternatively inserted, which is ignited in a small, far forward sitting person alternatively and in each case in the crash final phase.
  • a universal joint 76 for connection and appropriate directional deflection of other steering column components is arranged, which are not relevant to the present invention and therefore not shown.
  • the Fig. 3 and 4 show as an example a longitudinal and a cross section through a switching gear 18th
  • a drive shaft 37 from the servomotor 19 is distributed by means of gears 38, 39 and 40 magnetic couplings 41, 42 and 43 to three requirements.
  • the steering column height adjustment is transmitted by means of a threaded spindle 44 on a Mutteer 45 in a plate 46 which is fixed to an automotive cross member 47.
  • the steering shaft ratio is transmitted to the middle driveline, i. H. a magnetic coupling 43 and ring gears 48 and 49 transmitted to a worm 50.
  • This worm 50 drives a worm wheel 51 integrally formed in the swiveling housing 15.
  • the steering column longitudinal adjustment is driven by means of the gear 40, the magnetic coupling 41 and the gears 52 and 53.
  • FIG. 7 shows how the actuator for longitudinal and vertical adjustment of the steering column can be placed to save space in the lower steering shaft 3.
  • a servomotor 19 is shown, which consists of two functional halves.
  • the one motor half 59 drives the longitudinal adjustment via the drive shaft 61 (see also Fig. 1).
  • the second motor half 60 drives, by means of a hollow drive shaft 62, a threaded sleeve 63 whose loading movement on the drive shaft 62 causes an angular change of a lever 64 and thus the angular position of the steering column.
  • the adjustment of the steering shaft speed overrun is accomplished by a worm 65 meshing by a servo motor 66 in a worm gear 67 which is integrated as part of a gear housing 68 on which bevel gears 69 are running.
  • the remaining part corresponds to the previously mentioned alternatives.
  • bottom is analogous to the representation in FIG. 2 arranged at the lower end of the lower steering shaft 3, a universal joint 76 for connection and appropriate directional deflection of other steering column components, which are not relevant to the present invention and therefore not shown.
  • FIG. 8 shows two nested load limiters for head impact.
  • load limiter 30 as a corrugated pipe with increasing characteristic
  • another load limiter 70 is shown as a reversing tube.
  • Stülprohr-Lastbeskyrr 70 has a relatively horizontal characteristic.
  • Both load limiters 30 and 70 are used alternatively or in parallel to each other, j e according to the desired characteristic for absorbing the head or Houseaufschlagspitzen disclosed.
  • the invert tube load absorber 70 is tuned with apertures 71 shown, the wall thickness and the diameter.
  • both load limiters are unlocked and the steering column is driven by ignition of the pyrotechnic charge 36 to the front. This is useful to keep the steering against penetration in the crash ahead.
  • a sliding bearing 75 is installed therebetween.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)
  • Steering Controls (AREA)

Abstract

L'invention concerne une direction pourvue d'une colonne de direction. Plusieurs caractéristiques de sécurité sont adoptées de manière compacte dans un faible encombrement et à moindre coût. L'invention concerne également un mode de fonctionnement d'une telle direction, plusieurs fonctions de sécurité étant exécutées alternativement ou simultanément.
EP06705917A 2005-02-04 2006-02-06 Direction dotee d'un systeme sac gonflable et son mode de fonctionnement Withdrawn EP1843931A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005001908 2005-02-04
PCT/DE2006/000189 WO2006081812A1 (fr) 2005-02-04 2006-02-06 Direction dotee d'un systeme sac gonflable et son mode de fonctionnement

Publications (1)

Publication Number Publication Date
EP1843931A1 true EP1843931A1 (fr) 2007-10-17

Family

ID=36582049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06705917A Withdrawn EP1843931A1 (fr) 2005-02-04 2006-02-06 Direction dotee d'un systeme sac gonflable et son mode de fonctionnement

Country Status (2)

Country Link
EP (1) EP1843931A1 (fr)
WO (1) WO2006081812A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013010636A1 (de) 2013-06-25 2014-03-27 Daimler Ag Antriebsvorrichtung für einen höhen- und längsvertellbare Lenksäule eines Kraftwagens
WO2015135129A1 (fr) * 2014-03-11 2015-09-17 深圳市智行单轴双轮驱动技术有限公司 Volant de direction
CN113734271B (zh) * 2021-09-13 2022-10-14 浙江吉利控股集团有限公司 用于车辆的转向机构和车辆

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439225A (fr) * 1965-04-08 1966-05-20 Renault Agencement de volant et tableau de bord pour véhicule à moteur
DE2131902A1 (de) 1971-06-26 1972-12-28 Heckler & Koch Gmbh Lenkrad fuer ein Kraftfahrzeug od.dgl.
DE2459246A1 (de) * 1974-12-14 1976-06-16 Reiche & Co Aussenmantelrohr fuer eine kraftfahrzeug-lenkspindel oder rohrfoermige kraftfahrzeug-lenkspindel
JPS5833548A (ja) * 1981-08-25 1983-02-26 Aisin Seiki Co Ltd ステアリング操作ボードの電力および信号伝送装置
JPH01148640A (ja) * 1987-12-05 1989-06-12 Mazda Motor Corp 自動車のステアリング装置
CA1318833C (fr) * 1988-10-03 1993-06-08 T. Jack Oki Direction multi-fonctions pour vehicule automobile
DE4030405C2 (de) * 1990-09-26 1994-01-27 Porsche Ag Verstellbare Sicherheitslenksäule für ein Kraftfahrzeug
US5558365A (en) * 1992-12-18 1996-09-24 Kabushiki Kaisha Tokai-Rika-Denki Seisakusho Tethered air bag
FR2774056B1 (fr) * 1998-01-26 2000-04-21 Ecia Equip Composants Ind Auto Systeme de direction pour vehicule automobile
DE29907618U1 (de) * 1999-04-29 1999-09-16 Trw Repa Gmbh Gassack-Rückhaltesystem
JP4221821B2 (ja) * 1999-06-04 2009-02-12 マツダ株式会社 車両のステアリング構造
FR2830800B1 (fr) * 2001-10-12 2004-02-06 Faurecia Ind Coussin central fixe, ensemble de direction et vehicule automobile correspondants
DE10160717A1 (de) * 2001-12-11 2003-06-18 Mercedes Benz Lenkungen Gmbh Lenkung mit Umlaufgetriebe und Antrieb zum Aufprägen eines best. Handmoments am Lenkrad
US6997076B2 (en) * 2003-02-10 2006-02-14 Delphi Technologies, Inc. Gear backlash elimination and adjustable gear backlash mechanism

Non-Patent Citations (1)

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Title
See references of WO2006081812A1 *

Also Published As

Publication number Publication date
WO2006081812A1 (fr) 2006-08-10

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