WO2004113131A1 - Systeme amortisseur - Google Patents

Systeme amortisseur Download PDF

Info

Publication number
WO2004113131A1
WO2004113131A1 PCT/NO2004/000182 NO2004000182W WO2004113131A1 WO 2004113131 A1 WO2004113131 A1 WO 2004113131A1 NO 2004000182 W NO2004000182 W NO 2004000182W WO 2004113131 A1 WO2004113131 A1 WO 2004113131A1
Authority
WO
WIPO (PCT)
Prior art keywords
impact absorbing
active
bolts
apertures
vehicle
Prior art date
Application number
PCT/NO2004/000182
Other languages
English (en)
Inventor
Harald Krenzer
Christian Eide Lodgaard
Original Assignee
Norsk Hydro Asa
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 Norsk Hydro Asa filed Critical Norsk Hydro Asa
Publication of WO2004113131A1 publication Critical patent/WO2004113131A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R2019/262—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means with means to adjust or regulate the amount of energy to be absorbed

Definitions

  • the present invention relates to an impact absorbing system, preferably for use in a vehicle, which is provided with an impact absorbing member.
  • the impact absorbing member is formed as a hollow profile with apertures in the walls and shearing bolts fixing the impact absorbing member to the side frame of a vehicle.
  • the impact absorbing member provided with shearing bolts only support one force level thereby providing a limited flexibility in the crash protection design. As it is not possible to control the system with external parameters, the system will remain passive relating to different crash situations.
  • the crash design can be divided into different speed regimes.
  • the task of the impact absorbing structure of the vehicle is to protect the vehicle from deformation beyond the front transversal beam and crash box as it is presumed that neither the passengers inside the vehicle nor an outside pedestrian have a high risk of being injured. This can be obtained by most of the currently designed impact absorbing members being situated in the front area of the vehicle.
  • the side frames and frame structure is designed to maintain the compartment undeformed by deforming the front and/or rear part of the vehicle.
  • the increasing use of air bags is a part of the passenger protecting system.
  • the object of the present invention is to provide an impact absorbing system which provide a sufficient impact absorbing ability at low speeds and which is sufficiently flexible to render pedestrians protection during a crash situation.
  • Another object of the invention is to present an impact absorbing system which is compact and therefore do not need extra space to work sufficiently. It is also an object of the present invention to present a reliable system with a small quantity of active parts.
  • an impact absorbing system comprising an impact absorbing member provided with shearing bolts and active bolts which are entered into or released by means of a signal as the speed exceeds or goes below a predefined speed.
  • Fig. 1 shows an impact absorbing member installed in a vehicle
  • Fig. 2 shows a detail of the impact absorbing system
  • Fig. 3 shows an actuator.
  • the vehicle can be a car, bus, train or any other vehicle provided with an energy absorbing system.
  • the vehicle in the present example is a car having a side frame structure and a cross member or bumper and where an impact absorbing member is situated in connection with these structures.
  • Fig. 1 shows an impact absorbing member or crash box 1 situated between a cross member or bumper beam 2 and a frame member 3 of a vehicle.
  • Bolts 4 are fixing the crash box 1 to the bumper beam 2.
  • Shearing bolts 5 are fixing the crash box 1 to an actuator 6 mounted on the side frame 3 of the vehicle. At least one shearing bolt 5 (see also Fig. 2) are led through shear lines or shear apertures 7 in at least one wall 8 of the crash box 1. Even if two shearing bolts 5 are used in the present example, it can be suitable to use only one or more than two bolts in a different impact absorbing system. Each shearing bolt 5 is lead through a corresponding shear aperture 7 in at least one of the walls 8 of the crash box. In the present example it is used two shearing bolts 5 which pass through two opposing walls 8 of the crash box 1. Only one of the opposing walls is shown on Fig. 1.
  • Fig. 2 shows a more detailed part of the impact absorbing system.
  • the energy absorbing member or crash box 1 of the present example is formed as a hollow profile having a rectangular cross section.
  • the energy absorbing member can however have any other cross section within the scope of the invention.
  • a hollow profile may also be filled with an energy absorbing product such as aluminium foam.
  • the crash box of the present invention is further made of extruded aluminium but other materials such as steel or composites can be used if this is found suitable as explained above.
  • Shear apertures 7 are made in opposing walls 8 of the crash box 1.
  • the crash box according to the present invention has two apertures 7 in each wall. In the present crash box 1 , the shear apertures 7 of opposing walls 8 have a corresponding profile.
  • the shear apertures can have any other suitable profile which gives the intended performance of the impact absorbing system.
  • the width of the shear apertures made in the walls is designed to communicate during a crash.
  • the shear apertures 7 in the present example are adapted to the shearing bolts 5.
  • the shear apertures have a first section where the width of the aperture is corresponding with the cross section of the shearing bolt 5.
  • the first section may have an narrower profile than the cross section of the shearing bolt 5 thereby causing some resistance when the shearing bolt 5 is moved through the energy absorbing member or crash box 1.
  • a second section of the shearing aperture 7 is cut narrower than the first section.
  • Active apertures 7' are designed to hold at least one active bolt 9.
  • four active bolts 9 are arranged in the actuator 6 where two bolts are corresponding with each of two opposing walls 8' of the crash box.
  • the actuator 6 will receive input signals which triggers a mechanism which enters the active bolts into or releases them from the actuator side walls.
  • the signal can be trigged by anything that indicates danger of pedestrian impact such as the speed range, a radar system for early sensing of pedestrian impact or any other suitable system for detecting pedestrian impact before it actually happens.
  • the active apertures 7' has an inverse design compared to the shear apertures 7.
  • the first section of the active apertures is narrow thereby forcing the active bolts 9 to shear the walls 8' of the crash box.
  • a second section of the active apertures 7' has a width corresponding to the cross section of the active bolts 9, thereby allowing the bolts to pass in the second section of the active apertures 7" during a crash situation.
  • the apertures are corresponding in such a manner that the narrow first sections of the active apertures 7' are ending where the second narrow section of the shear apertures 7 are starting.
  • the material properties of the crash box and the desig ⁇ of the apertures plays an important role when defining the amount of the force being absorbed by the impact absorbing system. It is obvious that a person skilled in the art can choose a different design of the apertures within the scope of the invention.
  • the apertures can for example be cut with a constant narrowing or augmenting with, a web of material can be left in at least a part of at least one of the apertures or at least one of the apertures can be completely cut open.
  • the actuator 6 of the present example is designed to surround the crash box 1 end section, see Figs. 2 and 3. Holes 10 are made in two opposing webs 11 on the actuator 6. The active bolts 9 are situated in two opposing side walls 8' placed perpendicular to the webs 11.
  • the shearing bolts 5 are lead through the holes 10 in a first web 11 of the actuator 6 further through the shear apertures 7 in the crash box 1 and thereafter through the corresponding holes 9 in a second web 11.
  • the bolts can thereafter be fixed with nuts 13.
  • Perpendicular to the shearing bolts 5, a set of active bolts 9 are led through the active apertures 7 1 in the walls 8' of the crash box.
  • the active bolts 10 are advanced into the active apertures 7' in the walls 8' when the vehicle is standing still.
  • the actuator 6 can be controlled by the speed of the vehicle. As the speed exceeds a predefined speed, the active bolts 9 will retract into the side walls 12 of the actuator, thereby lowering the amount of material being sheared in a crash situation.
  • the active bolts 9 can be activated by an electro mechanical, electro hydraulic or any other relevant system.
  • Fig. 3 shows the actuator 6 with the active bolts in the two different positions.
  • the active bolts 9 will only perform a shearing operation at low speeds, thereby providing a stiff impact absorbing system which is able to absorb the necessary amount of energy to protect the inner structure of the vehicle.
  • the active bolts will retract into the side walls. This gives an impact absorbing system which will yield improved protection to any object being hit by the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

L'invention concerne un système amortisseur comprenant un élément amortisseur (1) présentant un profil creux et possédant des ouvertures de cisaillement (7) formées dans les parois (8), des boulons de cisaillement (5) assurant la fixation du boîtier amortisseur (1) au châssis latéral d'un véhicule. Des boulons actifs (9) entrent dans des ouvertures actives (7') formées dans les parois (8') du boîtier amortisseur lorsque le véhicule se déplace à une vitesse inférieure à une vitesse prédéfinie, et se rétractent et sortent des ouvertures (7') lorsque le véhicule se déplace à une vitesse supérieure à une vitesse prédéfinie.
PCT/NO2004/000182 2003-06-23 2004-06-18 Systeme amortisseur WO2004113131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20032896 2003-06-23
NO20032896A NO20032896D0 (no) 2003-06-23 2003-06-23 Energiabsorberende system

Publications (1)

Publication Number Publication Date
WO2004113131A1 true WO2004113131A1 (fr) 2004-12-29

Family

ID=27730999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2004/000182 WO2004113131A1 (fr) 2003-06-23 2004-06-18 Systeme amortisseur

Country Status (2)

Country Link
NO (1) NO20032896D0 (fr)
WO (1) WO2004113131A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013273A1 (de) * 2006-03-21 2007-09-27 Benteler Automobiltechnik Gmbh Stoßfängeranordnung
DE102006015876A1 (de) * 2006-04-05 2007-10-11 GM Global Technology Operations, Inc., Detroit Crashbox und Dämpfungsanordnung mit Crasbox
EP1854676A2 (fr) * 2006-05-12 2007-11-14 Peugeot Citroen Automobiles SA Ensemble d'absorption d'energie et vehicle automobile comportant au moins un tel ensemble
FR2919560A1 (fr) * 2007-08-03 2009-02-06 Hydro Aluminium Alunord Soc Ci Structure de caisse de vehicule automobile et vehicule comportant une telle structure de caisse
WO2009063275A1 (fr) * 2007-11-13 2009-05-22 Hydro Aluminium Alunord Structure de carrosserie de véhicule automobile et véhicule ayant une telle structure de carrosserie
EP2156992A1 (fr) * 2008-08-22 2010-02-24 Volkswagen AG Module avant optimisé contre les collisions destiné aux véhicules
EP2497689A1 (fr) 2011-03-10 2012-09-12 Autotech Engineering A.I.E. Système d'absorption de chocs applicable au pare-chocs d'un véhicule
EP2511141A1 (fr) * 2011-04-13 2012-10-17 Volvo Car Corporation Dispositif d'absorption d'énergie de collision et procédé de contrôle de l'énergie transmise à un véhicule durant une collision
CN102971204A (zh) * 2010-07-07 2013-03-13 罗伯特·博世有限公司 用于吸收碰撞能量的碰撞结构和用于调节碰撞结构的刚度的方法
DE102012107152B3 (de) * 2012-08-03 2013-09-05 Benteler Automobiltechnik Gmbh Stoßfängeranordnung mit Schercrashbox
DE102008027811B4 (de) * 2008-06-11 2013-10-02 Benteler Automobiltechnik Gmbh Stoßfängeranordnung
WO2014029586A1 (fr) * 2012-08-20 2014-02-27 Bayerische Motoren Werke Aktiengesellschaft Véhicule pourvu d'une protection antichoc
DE102013200678A1 (de) * 2013-01-17 2014-07-17 Bayerische Motoren Werke Aktiengesellschaft Energieaufnahmestruktur für ein Fahrzeug
WO2014177250A1 (fr) * 2013-05-02 2014-11-06 Audi Ag Dispositif d'absorption d'énergie cinétique destiné notamment à être encastré dans un véhicule automobile
US9566939B1 (en) 2015-09-04 2017-02-14 Google Inc. Shear pin failure system
JPWO2017179187A1 (ja) * 2016-04-15 2019-02-21 日産自動車株式会社 エネルギ吸収構造
US20210053518A1 (en) * 2019-08-23 2021-02-25 Volvo Car Corporation Automotive side rail crush can fastening assembly
CN112977315A (zh) * 2021-04-19 2021-06-18 宁波翼宇汽车零部件有限公司 一种新能源汽车用连接件
WO2023101009A1 (fr) * 2021-12-03 2023-06-08 豊田鉄工株式会社 Boîte-tampon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460421A (en) * 1994-05-31 1995-10-24 Chrysler Corporation Active impact column
DE19633110A1 (de) * 1995-08-25 1997-02-27 Volkswagen Ag Pralldämpfer mit Deformationselementen unterschiedlicher Steifigkeit
WO1999059842A1 (fr) * 1998-05-18 1999-11-25 Norsk Hydro Asa Dispositif amortisseur
DE10002148A1 (de) * 2000-01-20 2001-07-26 Suspa Holding Gmbh Aufprall-Dämpfungs-Einheit für Kraftfahrzeuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460421A (en) * 1994-05-31 1995-10-24 Chrysler Corporation Active impact column
DE19633110A1 (de) * 1995-08-25 1997-02-27 Volkswagen Ag Pralldämpfer mit Deformationselementen unterschiedlicher Steifigkeit
WO1999059842A1 (fr) * 1998-05-18 1999-11-25 Norsk Hydro Asa Dispositif amortisseur
DE10002148A1 (de) * 2000-01-20 2001-07-26 Suspa Holding Gmbh Aufprall-Dämpfungs-Einheit für Kraftfahrzeuge

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543866B2 (en) 2006-03-21 2009-06-09 Benteler Automobiltechnik Gmbh Bumper structure
DE102006013273B4 (de) * 2006-03-21 2013-09-05 Benteler Automobiltechnik Gmbh Stoßfängeranordnung
DE102006013273A1 (de) * 2006-03-21 2007-09-27 Benteler Automobiltechnik Gmbh Stoßfängeranordnung
DE102006015876A1 (de) * 2006-04-05 2007-10-11 GM Global Technology Operations, Inc., Detroit Crashbox und Dämpfungsanordnung mit Crasbox
US8052184B2 (en) 2006-04-05 2011-11-08 GM Global Technology Operations LLC Crashbox and damping arrangement with crashbox
EP1854676A3 (fr) * 2006-05-12 2008-01-16 Peugeot Citroen Automobiles SA Ensemble d'absorption d'energie et vehicle automobile comportant au moins un tel ensemble
FR2900887A1 (fr) * 2006-05-12 2007-11-16 Peugeot Citroen Automobiles Sa Ensemble d'absorption d'energie et vehicule automobile comportant au moins un tel ensemble
EP1854676A2 (fr) * 2006-05-12 2007-11-14 Peugeot Citroen Automobiles SA Ensemble d'absorption d'energie et vehicle automobile comportant au moins un tel ensemble
EP2022682A1 (fr) 2007-08-03 2009-02-11 Hydro Aluminium Alunord Structure de caisse de véhicule automobile et véhicule comportant une telle structure de caisse.
FR2919560A1 (fr) * 2007-08-03 2009-02-06 Hydro Aluminium Alunord Soc Ci Structure de caisse de vehicule automobile et vehicule comportant une telle structure de caisse
WO2009063275A1 (fr) * 2007-11-13 2009-05-22 Hydro Aluminium Alunord Structure de carrosserie de véhicule automobile et véhicule ayant une telle structure de carrosserie
DE102008027811B4 (de) * 2008-06-11 2013-10-02 Benteler Automobiltechnik Gmbh Stoßfängeranordnung
EP2156992A1 (fr) * 2008-08-22 2010-02-24 Volkswagen AG Module avant optimisé contre les collisions destiné aux véhicules
CN102971204A (zh) * 2010-07-07 2013-03-13 罗伯特·博世有限公司 用于吸收碰撞能量的碰撞结构和用于调节碰撞结构的刚度的方法
EP2497689A1 (fr) 2011-03-10 2012-09-12 Autotech Engineering A.I.E. Système d'absorption de chocs applicable au pare-chocs d'un véhicule
US8857584B2 (en) 2011-03-10 2014-10-14 Autotech Engineering, Aie Shock absorbing system applicable to the bumper of a vehicle
EP2511141A1 (fr) * 2011-04-13 2012-10-17 Volvo Car Corporation Dispositif d'absorption d'énergie de collision et procédé de contrôle de l'énergie transmise à un véhicule durant une collision
DE102012107152B3 (de) * 2012-08-03 2013-09-05 Benteler Automobiltechnik Gmbh Stoßfängeranordnung mit Schercrashbox
DE102012214751A1 (de) * 2012-08-20 2014-06-05 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug
WO2014029586A1 (fr) * 2012-08-20 2014-02-27 Bayerische Motoren Werke Aktiengesellschaft Véhicule pourvu d'une protection antichoc
US20150158443A1 (en) * 2012-08-20 2015-06-11 Bayerische Motoren Werke Aktiengesellscharft Vehicle Having Impact Protection
US9452723B2 (en) 2013-01-17 2016-09-27 Bayerische Motoren Werke Aktiengesellschaft Energy absorption structure for a motor vehicle
WO2014111388A1 (fr) * 2013-01-17 2014-07-24 Bayerische Motoren Werke Aktiengesellschaft Structure d'absorption d'énergie pour un véhicule
DE102013200678A1 (de) * 2013-01-17 2014-07-17 Bayerische Motoren Werke Aktiengesellschaft Energieaufnahmestruktur für ein Fahrzeug
US9592780B2 (en) 2013-05-02 2017-03-14 Audi Ag Device for absorbing kinetic energy, in particular for installing in a motor vehicle
CN105026216A (zh) * 2013-05-02 2015-11-04 奥迪股份公司 用于吸收动能、尤其是用于安装在机动车中的装置
WO2014177250A1 (fr) * 2013-05-02 2014-11-06 Audi Ag Dispositif d'absorption d'énergie cinétique destiné notamment à être encastré dans un véhicule automobile
US9566939B1 (en) 2015-09-04 2017-02-14 Google Inc. Shear pin failure system
US10099650B1 (en) 2015-09-04 2018-10-16 Waymo Llc Shear pin failure system
US10759379B2 (en) 2015-09-04 2020-09-01 Waymo Llc Shear pin failure system
JPWO2017179187A1 (ja) * 2016-04-15 2019-02-21 日産自動車株式会社 エネルギ吸収構造
US20210053518A1 (en) * 2019-08-23 2021-02-25 Volvo Car Corporation Automotive side rail crush can fastening assembly
US11097678B2 (en) * 2019-08-23 2021-08-24 Volvo Car Corporation Automotive side rail crush can fastening assembly
CN112977315A (zh) * 2021-04-19 2021-06-18 宁波翼宇汽车零部件有限公司 一种新能源汽车用连接件
CN112977315B (zh) * 2021-04-19 2021-07-23 宁波翼宇汽车零部件有限公司 一种新能源汽车用连接件
WO2023101009A1 (fr) * 2021-12-03 2023-06-08 豊田鉄工株式会社 Boîte-tampon

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