WO2012118968A3 - Hood pedestrian energy absorber - Google Patents

Hood pedestrian energy absorber Download PDF

Info

Publication number
WO2012118968A3
WO2012118968A3 PCT/US2012/027282 US2012027282W WO2012118968A3 WO 2012118968 A3 WO2012118968 A3 WO 2012118968A3 US 2012027282 W US2012027282 W US 2012027282W WO 2012118968 A3 WO2012118968 A3 WO 2012118968A3
Authority
WO
WIPO (PCT)
Prior art keywords
hood
energy absorber
energy
tuned
impact
Prior art date
Application number
PCT/US2012/027282
Other languages
French (fr)
Other versions
WO2012118968A2 (en
Inventor
Dan Ralston
Vidya Revankar
David R. Seiter
Amit Kulkarni
Original Assignee
Shape Corp.
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
Priority claimed from US13/040,747 external-priority patent/US8356857B2/en
Application filed by Shape Corp. filed Critical Shape Corp.
Publication of WO2012118968A2 publication Critical patent/WO2012118968A2/en
Publication of WO2012118968A3 publication Critical patent/WO2012118968A3/en

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
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/12—Parts or details thereof
    • 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
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • 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
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Laminated Bodies (AREA)
  • Body Structure For Vehicles (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

An energy absorbing system includes a hood with inner and outer panels defining a rear edge cavity, and a pair of polymeric energy absorbers on hard components in the cavity. The hood and energy absorber are tuned to minimize an HIC value when a pedestrian's head contacts the hood during an impact to absorb energy prior to the hood bottoming out on the plenum of the vehicle. The energy absorber is preferably made of a polymeric material capable of withstanding high temperatures associated with going through a paint oven or e-coat process, such as high temperature nylon. The illustrated energy absorber has a hat-shaped cross section and includes criss-crossing flanges tuned to provide an optimal force-deflection curve during impact.
PCT/US2012/027282 2011-03-03 2012-03-01 Hood pedestrian energy absorber WO2012118968A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161448841P 2011-03-03 2011-03-03
US61/448,841 2011-03-03
US13/040,747 US8356857B2 (en) 2010-03-05 2011-03-04 Hood pedestrian energy absorber
US13/040,747 2011-03-04

Publications (2)

Publication Number Publication Date
WO2012118968A2 WO2012118968A2 (en) 2012-09-07
WO2012118968A3 true WO2012118968A3 (en) 2012-10-26

Family

ID=46758494

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/027282 WO2012118968A2 (en) 2011-03-03 2012-03-01 Hood pedestrian energy absorber

Country Status (1)

Country Link
WO (1) WO2012118968A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11628888B2 (en) * 2020-10-02 2023-04-18 GM Global Technology Operations LLC Enclosed volume sandwich hood

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706908A (en) * 1994-04-18 1998-01-13 Nissan Motor Co., Ltd. Front upper structure of automotive vehicle
US20050082875A1 (en) * 2003-09-25 2005-04-21 Koki Ikeda Vehicle hood structure
US20090026807A1 (en) * 2007-07-24 2009-01-29 Gm Global Technology Operations, Inc. Energy-Absorbing Vehicle Hood Assembly with Cushion Inner Structure
US20090065277A1 (en) * 2007-09-11 2009-03-12 Gm Global Technology Operations, Inc. Vehicle Hood Assembly with Rippled Cushion Support
US20100140979A1 (en) * 2007-03-07 2010-06-10 Alcoa Inc. Pedestrian safe automotive hood having reinforcing foam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706908A (en) * 1994-04-18 1998-01-13 Nissan Motor Co., Ltd. Front upper structure of automotive vehicle
US20050082875A1 (en) * 2003-09-25 2005-04-21 Koki Ikeda Vehicle hood structure
US20100140979A1 (en) * 2007-03-07 2010-06-10 Alcoa Inc. Pedestrian safe automotive hood having reinforcing foam
US20090026807A1 (en) * 2007-07-24 2009-01-29 Gm Global Technology Operations, Inc. Energy-Absorbing Vehicle Hood Assembly with Cushion Inner Structure
US20090065277A1 (en) * 2007-09-11 2009-03-12 Gm Global Technology Operations, Inc. Vehicle Hood Assembly with Rippled Cushion Support

Also Published As

Publication number Publication date
WO2012118968A2 (en) 2012-09-07

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