WO2011071434A1 - Pied milieu pour véhicule - Google Patents

Pied milieu pour véhicule Download PDF

Info

Publication number
WO2011071434A1
WO2011071434A1 PCT/SE2010/000296 SE2010000296W WO2011071434A1 WO 2011071434 A1 WO2011071434 A1 WO 2011071434A1 SE 2010000296 W SE2010000296 W SE 2010000296W WO 2011071434 A1 WO2011071434 A1 WO 2011071434A1
Authority
WO
WIPO (PCT)
Prior art keywords
side flanges
hat
pillar
cover plate
shaped section
Prior art date
Application number
PCT/SE2010/000296
Other languages
English (en)
Inventor
Hans Bodin
Jan Krispinsson
Paul ÅKERSTRÖM
Daniel Berglund
Lars WIKSTRÖM
Martin Holmberg
Original Assignee
Gestamp Hardtech Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43243916&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2011071434(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gestamp Hardtech Ab filed Critical Gestamp Hardtech Ab
Priority to US13/261,320 priority Critical patent/US8684449B2/en
Priority to CN201080056743.0A priority patent/CN102762437B/zh
Priority to EP10836280.7A priority patent/EP2509849B2/fr
Priority to ES10836280T priority patent/ES2621627T5/es
Priority to KR1020127018368A priority patent/KR101755391B1/ko
Priority to JP2012543046A priority patent/JP5894081B2/ja
Publication of WO2011071434A1 publication Critical patent/WO2011071434A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04—Door pillars ; windshield pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/007—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel

Definitions

  • the invention relates to a B-pillar according to the pre-characterising part of claim 1. Background of the invention
  • the pillar from which the front door of a vehicle is normally suspended is referred to as an A-pillar.
  • This pillar extends up along the windscreen and is connected to the roof member above the doors.
  • the passenger is protected by the door, as well as by the A-pillar in front of the door, the B-pillar behind the door, the sill member below the door and the roof member above the door.
  • B-pillars the edges of which are trimmed after forming and hardening are known from US 7 278 287 B2.
  • the pillars are manufactured with soft edges in order to reduce the wear of the edge-trimming tool.
  • One aim of the invention is to improve the protection for passengers in the event of a lateral collision. This is achieved, inter alia, by designing the B-pillar in such a manner that it can be deformed without reduced crack formation in the region of the weld having an adverse effect on the energy absorption capacity of the B-pillar.
  • the aim of the invention is achieved in that the device has the features specified in the claims.
  • Figure 1 is a side view of the central part of the load-bearing part of a passenger car.
  • Figure 2 shows the main section of a B-pillar in the exposed state.
  • Figure 3 is a perspective view of the main section of the B-pillar.
  • Figure 4 is a section along the line IV-IV of Figure 2, but in which a cover plate or outer panel is added to the B-pillar.
  • Figure 5 is a section through the hat-shaped member of the B-pillar. Detailed description of illustrated embodiment of the invention
  • Figure 1 is a diagram showing the load-bearing parts of one side of a vehicle with a sill member 11 to which an A-pillar 12, a B-pillar 13 and a C-pillar 14 are welded.
  • the B-pillar 13 is welded at its upper end to a roof member 19.
  • Figures 2-5 show a main section 20 of a B-pillar, the main part 20 of which includes a hat-shaped section/hat-shaped member 21 with a central flange 22, two web portions 23, 24 and two side flanges 25, 26.
  • the main section 20 is provided at its upper and lower ends with portions 27, 28 for connection to the roof member 19 and the sill member 11 of a vehicle chassis.
  • the central flange 22 is directed towards the outside of the vehicle.
  • Figure 3 shows that the hat-shaped member 21 normally has varying width and height dimensions along its length.
  • the main section 20 normally also has a certain longitudinal curvature dependent, inter alia, on the vehicle design.
  • FIG 4 is a cross section showing a finished B-pillar 13 according to the invention, in which an inner cover plate 40 is arranged in such a manner that it forms a box section or closed profile together with the hat-shaped section 21.
  • the cover plate 40 is designed in such a manner that its central portion 41 is situated within (below) the zones 42, 43 in which the cover plate 40 bears against the side flanges 25, 26 of the hat-shaped section 21.
  • the cover plate 40 may also be flat or may optionally be profiled, wherein, e.g. the central portion 41 may also be situated outside (above) the surfaces of the cover plate 40 bearing against the side flanges 25, 26.
  • the cover plate may be of any desired design and dimensions within the scope of the invention. If desired, the cover plate may cover a greater or lesser portion of the hat-shaped section 21 and may also be divided into two or more smaller cover plates.
  • the finished B-pillar according to the invention normally also includes an outer panel 50, e.g. of steel, designed in such a manner that it fits over the main section 20 and covers the latter in the desired longitudinal section.
  • the outer panel 50 may sometimes be omitted and, when it is used, it is most often for aesthetic reasons and/or for sealing purposes.
  • the main section 20 is manufactured by press hardening, i.e. it is hot-formed and hardened from a flat blank of boron steel in one step in cooled forming tools. It is hardened to a breaking strength in excess of 1400 MPa, but certain parts of its side flanges 25, 26 are not fully hardened and have a breaking strength below 1100 MPa. Portions of this kind which have not been fully hardened can be referred to as soft zones A and their breaking strength may advantageously be between 500 and 1000 MPa. This reduced strength can be achieved in various ways, e.g. by heating the surfaces of the tool pair bearing against the product, while cooling the remaining parts of the tool pair.
  • the flat parts 25, 26 of the side flanges have the desired lower breaking strength, while the adjacent curved portions 29, 30 form a transition zone B to fully hardened material.
  • the length L of the soft zone of the side flanges 25, 26 may preferably be
  • the length and the position of the soft zones A can be varied as required depending, inter alia, on the desired deformation properties and/or the design of the cover plate.
  • the length L is advantageously approximately 10-80 % of the total length of the side flanges 25, 26.
  • the cover plate 40 can be manufactured by press hardening with the same high breaking strength (at least 1400 MPa) and with the same lower breaking strength (no more than 1100 MPa) mentioned hereinabove in the flanges or in the portion 42, 43 bearing against the side flanges 25, 26 of the hat-shaped section 21.
  • the cover plate 40 may also be cold-formed in a steel having a breaking strength below 1100 MPa, e.g. with a strength of 300-1000 MPa.
  • the side flanges 25, 26 of the hat-shaped section 21 and the zones of the cover plate bearing against the side flanges 25, 26 advantageously both have approximately the same strength and ductility.
  • the dimensions of the cover plate 40 or, as applicable, the cover plates are adapted to the desired performance of the B-pillar.
  • the breaking strength of the outer panel 50 is normally below 1100 MPa.
  • the softened side flanges 25, 26 of the main section 20 are spot-welded to the cover plate 40 and any outer panel/outer plate 50 by means of the required number of spot welds so as to obtain a finished B-pillar.
  • the spot welds are designated 100 and are present in the required number. Laser welding is also suitable.
  • the outer panel 50 may be omitted in certain cases.
  • the soft zone A of the side flanges 25, 26 is arranged in such a manner that the cover plate 40 is welded to the side flanges 25, 26 within the soft zone or soft zones A.
  • the B-pillar thus has a closed profile along at least part of its length.
  • the lower strength and greater ductility of the flanges 25, 26 reduces the risk of fracture of the B-pillar before it has absorbed the maximum amount of energy by plastic deformation, thereby improving the protection of affected passengers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un pied milieu pour un véhicule, comportant une section principale (20) dotée d'une section en chapeau (21) comprenant une membrure centrale (22), deux parties âmes (23, 24) et deux membrures latérales (25, 26). La section en chapeau (21) au moins est emboutie à chaud et présente une résistance à la rupture supérieure à 1400 MPa, et les membrures latérales (25, 26) de la section en chapeau (21) présentent une résistance à la rupture inférieure à 1100 MPa sur une partie au moins de leur longueur. Le pied milieu (13) comporte une plaque de fermeture (40) soudée aux membrures latérales (25, 26) de la section en chapeau (21) de manière à former un profil fermé, la plaque de fermeture (40) présentant une résistance à la rupture inférieure à 1100 MPa au moins dans la région dans laquelle elle prend appui sur les membrures latérales (25, 26). Les membrures latérales (25, 26) de la section en chapeau présentent une résistance à la rupture inférieure à 1100 MPa dans la région dans laquelle elles prennent appui sur la plaque de fermeture (40).
PCT/SE2010/000296 2009-12-13 2010-12-12 Pied milieu pour véhicule WO2011071434A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US13/261,320 US8684449B2 (en) 2009-12-13 2010-12-12 B-pillar for a vehicle
CN201080056743.0A CN102762437B (zh) 2009-12-13 2010-12-12 车辆的b柱
EP10836280.7A EP2509849B2 (fr) 2009-12-13 2010-12-12 Pied milieu pour véhicule
ES10836280T ES2621627T5 (es) 2009-12-13 2010-12-12 Pilar B para un vehículo
KR1020127018368A KR101755391B1 (ko) 2009-12-13 2010-12-12 차량용 비-필러
JP2012543046A JP5894081B2 (ja) 2009-12-13 2010-12-12 車両用ｂピラー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SESE0901550-4 2009-12-13
SE0901550A SE533528C2 (sv) 2009-12-13 2009-12-13 B-stolpe för fordon

Publications (1)

Publication Number Publication Date
WO2011071434A1 true WO2011071434A1 (fr) 2011-06-16

Family

ID=43243916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2010/000296 WO2011071434A1 (fr) 2009-12-13 2010-12-12 Pied milieu pour véhicule

Country Status (11)

Country Link
US (1) US8684449B2 (fr)
EP (1) EP2509849B2 (fr)
JP (1) JP5894081B2 (fr)
KR (1) KR101755391B1 (fr)
CN (1) CN102762437B (fr)
ES (1) ES2621627T5 (fr)
HU (1) HUE032246T2 (fr)
PL (1) PL2509849T3 (fr)
PT (1) PT2509849T (fr)
SE (1) SE533528C2 (fr)
WO (1) WO2011071434A1 (fr)

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GB2497396A (en) * 2011-12-08 2013-06-12 Gm Global Tech Operations Inc Reinforcement for vehicle pillar
WO2014050973A1 (fr) * 2012-09-27 2014-04-03 新日鐵住金株式会社 Procédé de production pour renforcement de pilier central
CN103827325A (zh) * 2011-09-16 2014-05-28 本特勒尔汽车技术有限公司 用于通过热成形制造结构构件和底盘构件的方法和加热站
WO2015130206A1 (fr) 2014-02-17 2015-09-03 Gestamp Hardtech Ab Soudure allongée et poutre comportant une telle soudure
WO2015071444A3 (fr) * 2013-11-15 2015-09-24 Autotech Engineering, A.I.E. Poutre pour la réalisation d'une ossature métallique
WO2016140744A1 (fr) * 2015-03-04 2016-09-09 Fca Us Llc Construction de renfort de pilier de véhicule pour impact latéral
DE102015106812A1 (de) * 2015-04-30 2016-11-03 Benteler Automobiltechnik Gmbh Kraftfahrzeugsäule mit Verstärkungsblech sowie Verfahren zu dessen Herstellung
RU2667854C1 (ru) * 2014-09-22 2018-09-24 Арселормиттал Основание кузова транспортного средства и кузов транспортного средства
FR3111320A1 (fr) * 2020-06-16 2021-12-17 Psa Automobiles Sa Renfort de longeron pour véhicule automobile
WO2022238458A1 (fr) * 2021-05-11 2022-11-17 Autotech Engineering S.L. Éléments structuraux pour un véhicule et procédés
US12091726B2 (en) 2016-11-14 2024-09-17 Toyota Jidosha Kabushiki Kaisha Hot-press molding method and hot-press molded product

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EP2803560B1 (fr) * 2012-01-12 2016-06-29 Nissan Motor Company, Limited Structure pour face latérale d'une carrosserie de véhicule
JP6128334B2 (ja) * 2014-07-22 2017-05-17 マツダ株式会社 車両の後部車体構造
DE102014110320B4 (de) * 2014-07-22 2016-11-24 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Leichtmetall Blechbauteils
CN104527803B (zh) * 2014-12-17 2016-07-20 无锡朗贤汽车组件研发中心有限公司 一种汽车的侧围内板
CN104477248B (zh) * 2014-12-17 2016-07-13 无锡朗贤汽车组件研发中心有限公司 汽车的侧围内板
JP6468640B2 (ja) * 2015-02-04 2019-02-13 株式会社Ｓｕｂａｒｕ 車体のピラー構造
EP3085605B1 (fr) * 2015-04-24 2018-11-21 Volvo Car Corporation Structure de renforcement
WO2017098304A1 (fr) * 2015-12-09 2017-06-15 Arcelormittal Procédé de production d'une pièce de structure automobile comprenant un bas de caisse de côté inférieur et un montant avant inférieur
DE102016103962B3 (de) * 2016-03-04 2017-03-02 Benteler Automobiltechnik Gmbh B-Säule mit partiellen Festigkeitseigenschaften
EP3436207B1 (fr) * 2016-03-29 2022-08-31 Magna International Inc. Montant milieu présentant des propriétés adaptées
US10773755B2 (en) 2017-03-24 2020-09-15 Nippon Steel Corporation Hat member
JP6376318B1 (ja) * 2017-03-24 2018-08-22 新日鐵住金株式会社 ハット部材およびその製造方法
JP6575015B2 (ja) * 2017-07-07 2019-09-18 本田技研工業株式会社 車体構造
JP6555303B2 (ja) * 2017-07-28 2019-08-07 マツダ株式会社 車両の側部車体構造
US11283395B2 (en) 2018-03-23 2022-03-22 Nextracker Inc. Multiple actuator system for solar tracker
US12030131B2 (en) 2018-05-31 2024-07-09 Nippon Steel Corporation Spot welded joint, vehicle framework component provided with spot welded joint, and method of manufacturing spot welded joint
US11387771B2 (en) 2018-06-07 2022-07-12 Nextracker Llc Helical actuator system for solar tracker
CN112739471B (zh) 2018-09-19 2023-06-09 日本制铁株式会社 拼焊板、拼焊板的制造方法、压力成形品及压力成形品的制造方法
KR20210076906A (ko) 2018-10-15 2021-06-24 오토테크 엔지니어링 에스.엘. 차량의 구조적 빔을 위한 프로파일
JP7144338B2 (ja) * 2019-02-05 2022-09-29 フタバ産業株式会社 プレス加工方法
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US11050383B2 (en) 2019-05-21 2021-06-29 Nextracker Inc Radial cam helix with 0 degree stow for solar tracker
WO2020241500A1 (fr) 2019-05-24 2020-12-03 日本製鉄株式会社 Joint soudé par points, et procédé de fabrication d'un joint soudé par points

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Publication number Priority date Publication date Assignee Title
CN103827325B (zh) * 2011-09-16 2016-01-20 本特勒尔汽车技术有限公司 用于通过热成型制造结构构件和底盘构件的方法和加热站
CN103827325A (zh) * 2011-09-16 2014-05-28 本特勒尔汽车技术有限公司 用于通过热成形制造结构构件和底盘构件的方法和加热站
US9616488B2 (en) 2011-09-16 2017-04-11 Benteler Automobiltechnik Gmbh Method for producing structural components and chassis components by hot forming, and heating station
GB2497396A (en) * 2011-12-08 2013-06-12 Gm Global Tech Operations Inc Reinforcement for vehicle pillar
US8967703B2 (en) 2011-12-08 2015-03-03 GM Global Technology Operations LLC Reinforcement for a vehicle pillar
US9839954B2 (en) 2012-09-27 2017-12-12 Nippon Steel & Sumitomo Metal Corporation Method for producing center pillar reinforcement
WO2014050973A1 (fr) * 2012-09-27 2014-04-03 新日鐵住金株式会社 Procédé de production pour renforcement de pilier central
KR20150058415A (ko) * 2012-09-27 2015-05-28 신닛테츠스미킨 카부시키카이샤 센터 필러 보강재의 제조 방법
CN104684661A (zh) * 2012-09-27 2015-06-03 新日铁住金株式会社 中柱加强件的制造方法
TWI556885B (zh) * 2012-09-27 2016-11-11 Nippon Steel & Sumitomo Metal Corp Method of manufacturing central pillar reinforcement
KR101702795B1 (ko) * 2012-09-27 2017-02-03 신닛테츠스미킨 카부시키카이샤 센터 필러 보강재의 제조 방법
JP5614514B2 (ja) * 2012-09-27 2014-10-29 新日鐵住金株式会社 センターピラーリンフォースメントの製造方法
CN104684661B (zh) * 2012-09-27 2017-06-09 新日铁住金株式会社 中柱加强件的制造方法
RU2628268C2 (ru) * 2012-09-27 2017-08-15 Ниппон Стил Энд Сумитомо Метал Корпорейшн Способ производства усилителя центральной стойки
WO2015071444A3 (fr) * 2013-11-15 2015-09-24 Autotech Engineering, A.I.E. Poutre pour la réalisation d'une ossature métallique
CN105722745A (zh) * 2013-11-15 2016-06-29 自动工程公司 具有u形横截面的横梁
US10023237B2 (en) 2013-11-15 2018-07-17 Autotech Engineering A.I.E. Beam for producing a metal framework
WO2015130206A1 (fr) 2014-02-17 2015-09-03 Gestamp Hardtech Ab Soudure allongée et poutre comportant une telle soudure
RU2667854C1 (ru) * 2014-09-22 2018-09-24 Арселормиттал Основание кузова транспортного средства и кузов транспортного средства
US10167023B2 (en) 2014-09-22 2019-01-01 Arcelormittal Vehicle underbody structure and vehicle body
WO2016140744A1 (fr) * 2015-03-04 2016-09-09 Fca Us Llc Construction de renfort de pilier de véhicule pour impact latéral
DE102015106812A1 (de) * 2015-04-30 2016-11-03 Benteler Automobiltechnik Gmbh Kraftfahrzeugsäule mit Verstärkungsblech sowie Verfahren zu dessen Herstellung
US10059376B2 (en) 2015-04-30 2018-08-28 Benteler Automobiltechnik Gmbh Motor vehicle column with reinforcement sheet and method for the production thereof
DE102015106812B4 (de) * 2015-04-30 2018-11-08 Benteler Automobiltechnik Gmbh Kraftfahrzeugsäule mit Verstärkungsblech sowie Verfahren zu dessen Herstellung
US12091726B2 (en) 2016-11-14 2024-09-17 Toyota Jidosha Kabushiki Kaisha Hot-press molding method and hot-press molded product
FR3111320A1 (fr) * 2020-06-16 2021-12-17 Psa Automobiles Sa Renfort de longeron pour véhicule automobile
WO2022238458A1 (fr) * 2021-05-11 2022-11-17 Autotech Engineering S.L. Éléments structuraux pour un véhicule et procédés

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HUE032246T2 (en) 2017-09-28
EP2509849B1 (fr) 2017-01-25
ES2621627T5 (es) 2021-04-05
EP2509849A1 (fr) 2012-10-17
CN102762437A (zh) 2012-10-31
KR101755391B1 (ko) 2017-07-10
EP2509849B2 (fr) 2020-06-17
KR20120110118A (ko) 2012-10-09
SE0901550A1 (sv) 2010-10-19
ES2621627T3 (es) 2017-07-04
EP2509849A4 (fr) 2014-03-19
PT2509849T (pt) 2017-04-03
JP2013513514A (ja) 2013-04-22
US8684449B2 (en) 2014-04-01
US20120319431A1 (en) 2012-12-20
CN102762437B (zh) 2015-10-07
SE533528C2 (sv) 2010-10-19
PL2509849T3 (pl) 2017-08-31
JP5894081B2 (ja) 2016-03-23

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