WO2011071434A1 - B-pillar for a vehicle - Google Patents
B-pillar for a vehicle Download PDFInfo
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 229910000712 Boron steel Inorganic materials 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127018368A KR101755391B1 (en) | 2009-12-13 | 2010-12-12 | B-pillar for a vehicle |
ES10836280T ES2621627T5 (en) | 2009-12-13 | 2010-12-12 | B-pillar for a vehicle |
CN201080056743.0A CN102762437B (en) | 2009-12-13 | 2010-12-12 | The B post of vehicle |
JP2012543046A JP5894081B2 (en) | 2009-12-13 | 2010-12-12 | B pillar for vehicles |
US13/261,320 US8684449B2 (en) | 2009-12-13 | 2010-12-12 | B-pillar for a vehicle |
EP10836280.7A EP2509849B2 (en) | 2009-12-13 | 2010-12-12 | B-pillar for a vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0901550A SE0901550A1 (en) | 2009-12-13 | 2009-12-13 | B-pillar for vehicles |
SESE0901550-4 | 2009-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011071434A1 true WO2011071434A1 (en) | 2011-06-16 |
Family
ID=43243916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2010/000296 WO2011071434A1 (en) | 2009-12-13 | 2010-12-12 | B-pillar for a vehicle |
Country Status (11)
Country | Link |
---|---|
US (1) | US8684449B2 (en) |
EP (1) | EP2509849B2 (en) |
JP (1) | JP5894081B2 (en) |
KR (1) | KR101755391B1 (en) |
CN (1) | CN102762437B (en) |
ES (1) | ES2621627T5 (en) |
HU (1) | HUE032246T2 (en) |
PL (1) | PL2509849T3 (en) |
PT (1) | PT2509849T (en) |
SE (1) | SE0901550A1 (en) |
WO (1) | WO2011071434A1 (en) |
Cited By (11)
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GB2497396A (en) * | 2011-12-08 | 2013-06-12 | Gm Global Tech Operations Inc | Reinforcement for vehicle pillar |
WO2014050973A1 (en) * | 2012-09-27 | 2014-04-03 | 新日鐵住金株式会社 | Production method for centre-pillar reinforcement |
CN103827325A (en) * | 2011-09-16 | 2014-05-28 | 本特勒尔汽车技术有限公司 | Method for producing structural components and chassis components by hot forming, and heating station |
WO2015130206A1 (en) | 2014-02-17 | 2015-09-03 | Gestamp Hardtech Ab | An elongate weld and a beam having such a weld |
WO2015071444A3 (en) * | 2013-11-15 | 2015-09-24 | Autotech Engineering, A.I.E. | Beam for producing a metal framework |
WO2016140744A1 (en) * | 2015-03-04 | 2016-09-09 | Fca Us Llc | Vehicle pillar reinforcement construction for side impact |
DE102015106812A1 (en) * | 2015-04-30 | 2016-11-03 | Benteler Automobiltechnik Gmbh | Motor vehicle pillar with reinforcement plate and method for its production |
RU2667854C1 (en) * | 2014-09-22 | 2018-09-24 | Арселормиттал | Vehicle body basis and vehicle body |
FR3111320A1 (en) * | 2020-06-16 | 2021-12-17 | Psa Automobiles Sa | Spar reinforcement for motor vehicle |
WO2022238458A1 (en) * | 2021-05-11 | 2022-11-17 | Autotech Engineering S.L. | Structural members for a vehicle and methods |
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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WO2012157079A1 (en) * | 2011-05-17 | 2012-11-22 | トヨタ自動車株式会社 | Vehicle body framework structure |
WO2013105462A1 (en) * | 2012-01-12 | 2013-07-18 | 日産自動車株式会社 | Structure for side face of vehicle body |
JP6128334B2 (en) * | 2014-07-22 | 2017-05-17 | マツダ株式会社 | Rear body structure of the vehicle |
DE102014110320B4 (en) * | 2014-07-22 | 2016-11-24 | Benteler Automobiltechnik Gmbh | Process for producing a light metal sheet metal component |
CN104477248B (en) * | 2014-12-17 | 2016-07-13 | 无锡朗贤汽车组件研发中心有限公司 | The side-wall inner-plate of automobile |
CN104527803B (en) * | 2014-12-17 | 2016-07-20 | 无锡朗贤汽车组件研发中心有限公司 | A kind of side-wall inner-plate of automobile |
JP6468640B2 (en) * | 2015-02-04 | 2019-02-13 | 株式会社Subaru | Body pillar structure |
EP3085605B1 (en) * | 2015-04-24 | 2018-11-21 | Volvo Car Corporation | Reinforcement structure |
WO2017098304A1 (en) * | 2015-12-09 | 2017-06-15 | Arcelormittal | Method for producing an automotive structural part comprising a lowerside sill and a lower front pillar |
DE102016103962B3 (en) * | 2016-03-04 | 2017-03-02 | Benteler Automobiltechnik Gmbh | B-pillar with partial strength properties |
WO2017172546A1 (en) * | 2016-03-29 | 2017-10-05 | Magna International Inc. | B-pillar with tailored properties |
CA3057804C (en) * | 2017-03-24 | 2020-04-07 | Nippon Steel Corporation | Hat member |
JP6376318B1 (en) * | 2017-03-24 | 2018-08-22 | 新日鐵住金株式会社 | Hat member and manufacturing method thereof |
JP6575015B2 (en) * | 2017-07-07 | 2019-09-18 | 本田技研工業株式会社 | Body structure |
JP6555303B2 (en) * | 2017-07-28 | 2019-08-07 | マツダ株式会社 | Vehicle side body structure |
US11283395B2 (en) | 2018-03-23 | 2022-03-22 | Nextracker Inc. | Multiple actuator system for solar tracker |
CN112203793B (en) | 2018-05-31 | 2022-02-11 | 日本制铁株式会社 | Spot-welded joint, vehicle frame member provided with spot-welded joint, and method for manufacturing spot-welded joint |
US11387771B2 (en) | 2018-06-07 | 2022-07-12 | Nextracker Llc | Helical actuator system for solar tracker |
US11945053B2 (en) | 2018-09-19 | 2024-04-02 | Nippon Steel Corporation | Tailored blank, tailored blank manufacturing method, stamped part, and stamped part manufacturing method |
EP3867127B8 (en) | 2018-10-15 | 2024-08-28 | Autotech Engineering, S.L. | Profile for a structural beam of a vehicle |
JP7144338B2 (en) * | 2019-02-05 | 2022-09-29 | フタバ産業株式会社 | Pressing method |
MX2021012209A (en) | 2019-04-10 | 2021-11-03 | Nippon Steel Corp | Blank and structural member. |
US11050383B2 (en) | 2019-05-21 | 2021-06-29 | Nextracker Inc | Radial cam helix with 0 degree stow for solar tracker |
JP6885523B2 (en) | 2019-05-24 | 2021-06-16 | 日本製鉄株式会社 | Manufacturing method of spot welded joints and spot welded joints |
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US5972134A (en) * | 1997-10-02 | 1999-10-26 | Benteler Ag | Manufacture of a metallic molded structural part |
US7278287B2 (en) * | 2005-04-19 | 2007-10-09 | Benteler Automobiltechnik Gmbh | Apparatus for shaping metal sheets |
WO2009123538A1 (en) * | 2008-04-03 | 2009-10-08 | Gestam Hardtech Ab | Method of manufacturing a press-formed sheet-metal product |
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DE19743802C2 (en) | 1996-10-07 | 2000-09-14 | Benteler Werke Ag | Method for producing a metallic molded component |
DE10323746A1 (en) | 2003-05-24 | 2004-12-09 | Daimlerchrysler Ag | Metallic component repair method for car body, involves defining part to be repaired with separation area which has lower hardness than construction component |
DE102005003978A1 (en) | 2005-01-28 | 2006-08-03 | Bayerische Motoren Werke Ag | Body component of motor vehicle has reinforcing profile of high strength material fixed on body profile and with geometrical dimensions matching those of latter at least in opposite sections |
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2009
- 2009-12-13 SE SE0901550A patent/SE0901550A1/en not_active IP Right Cessation
-
2010
- 2010-12-12 ES ES10836280T patent/ES2621627T5/en active Active
- 2010-12-12 HU HUE10836280A patent/HUE032246T2/en unknown
- 2010-12-12 JP JP2012543046A patent/JP5894081B2/en active Active
- 2010-12-12 WO PCT/SE2010/000296 patent/WO2011071434A1/en active Application Filing
- 2010-12-12 US US13/261,320 patent/US8684449B2/en active Active
- 2010-12-12 PT PT108362807T patent/PT2509849T/en unknown
- 2010-12-12 EP EP10836280.7A patent/EP2509849B2/en active Active
- 2010-12-12 KR KR1020127018368A patent/KR101755391B1/en active IP Right Grant
- 2010-12-12 PL PL10836280T patent/PL2509849T3/en unknown
- 2010-12-12 CN CN201080056743.0A patent/CN102762437B/en active Active
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Cited By (27)
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---|---|---|---|---|
CN103827325B (en) * | 2011-09-16 | 2016-01-20 | 本特勒尔汽车技术有限公司 | For passing through method and the heating station of thermoforming manufacturing structure component and chassis component |
CN103827325A (en) * | 2011-09-16 | 2014-05-28 | 本特勒尔汽车技术有限公司 | Method for producing structural components and chassis components by hot forming, and heating station |
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 (en) * | 2012-09-27 | 2014-04-03 | 新日鐵住金株式会社 | Production method for centre-pillar reinforcement |
KR20150058415A (en) * | 2012-09-27 | 2015-05-28 | 신닛테츠스미킨 카부시키카이샤 | Production method for centre-pillar reinforcement |
CN104684661A (en) * | 2012-09-27 | 2015-06-03 | 新日铁住金株式会社 | Production method for centre-pillar reinforcement |
TWI556885B (en) * | 2012-09-27 | 2016-11-11 | Nippon Steel & Sumitomo Metal Corp | Method of manufacturing central pillar reinforcement |
KR101702795B1 (en) * | 2012-09-27 | 2017-02-03 | 신닛테츠스미킨 카부시키카이샤 | Production method for centre-pillar reinforcement |
JP5614514B2 (en) * | 2012-09-27 | 2014-10-29 | 新日鐵住金株式会社 | Manufacturing method of center pillar reinforcement |
CN104684661B (en) * | 2012-09-27 | 2017-06-09 | 新日铁住金株式会社 | The manufacture method of center pillar stiffener |
RU2628268C2 (en) * | 2012-09-27 | 2017-08-15 | Ниппон Стил Энд Сумитомо Метал Корпорейшн | Manufacturing method of centerpost amplifier |
WO2015071444A3 (en) * | 2013-11-15 | 2015-09-24 | Autotech Engineering, A.I.E. | Beam for producing a metal framework |
CN105722745A (en) * | 2013-11-15 | 2016-06-29 | 自动工程公司 | Beams with U-shaped cross-section |
US10023237B2 (en) | 2013-11-15 | 2018-07-17 | Autotech Engineering A.I.E. | Beam for producing a metal framework |
WO2015130206A1 (en) | 2014-02-17 | 2015-09-03 | Gestamp Hardtech Ab | An elongate weld and a beam having such a weld |
RU2667854C1 (en) * | 2014-09-22 | 2018-09-24 | Арселормиттал | Vehicle body basis and vehicle body |
US10167023B2 (en) | 2014-09-22 | 2019-01-01 | Arcelormittal | Vehicle underbody structure and vehicle body |
WO2016140744A1 (en) * | 2015-03-04 | 2016-09-09 | Fca Us Llc | Vehicle pillar reinforcement construction for side impact |
DE102015106812A1 (en) * | 2015-04-30 | 2016-11-03 | Benteler Automobiltechnik Gmbh | Motor vehicle pillar with reinforcement plate and method for its production |
US10059376B2 (en) | 2015-04-30 | 2018-08-28 | Benteler Automobiltechnik Gmbh | Motor vehicle column with reinforcement sheet and method for the production thereof |
DE102015106812B4 (en) * | 2015-04-30 | 2018-11-08 | Benteler Automobiltechnik Gmbh | Motor vehicle pillar with reinforcement plate and method for its production |
US12091726B2 (en) | 2016-11-14 | 2024-09-17 | Toyota Jidosha Kabushiki Kaisha | Hot-press molding method and hot-press molded product |
FR3111320A1 (en) * | 2020-06-16 | 2021-12-17 | Psa Automobiles Sa | Spar reinforcement for motor vehicle |
WO2022238458A1 (en) * | 2021-05-11 | 2022-11-17 | Autotech Engineering S.L. | Structural members for a vehicle and methods |
Also Published As
Publication number | Publication date |
---|---|
JP2013513514A (en) | 2013-04-22 |
ES2621627T5 (en) | 2021-04-05 |
SE533528C2 (en) | 2010-10-19 |
US20120319431A1 (en) | 2012-12-20 |
US8684449B2 (en) | 2014-04-01 |
KR101755391B1 (en) | 2017-07-10 |
KR20120110118A (en) | 2012-10-09 |
JP5894081B2 (en) | 2016-03-23 |
PL2509849T3 (en) | 2017-08-31 |
SE0901550A1 (en) | 2010-10-19 |
EP2509849B2 (en) | 2020-06-17 |
PT2509849T (en) | 2017-04-03 |
EP2509849A1 (en) | 2012-10-17 |
CN102762437B (en) | 2015-10-07 |
EP2509849A4 (en) | 2014-03-19 |
CN102762437A (en) | 2012-10-31 |
ES2621627T3 (en) | 2017-07-04 |
EP2509849B1 (en) | 2017-01-25 |
HUE032246T2 (en) | 2017-09-28 |
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