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1、Date Impression: 10/23/202010/23/202010/23/20203/23/2021,1,General presentation:Side impactBy Sverine Wollin Technical consultant Side impact.,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,2,ECE R95 EuroNCAP,US LINCAP,Pole test,Out Of Position (OOP),IIHS,General presentation : side impact
2、,Requirements,FMVSS 214,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,3,PROTECTION The airbag protect the occupant in a side crash,General presentation : SAB,Pole against vehicle,Vehicle against vehicle,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,4,Thorax airbag: a pressured
3、bag is positioned between the door and the occupant to protect the ribs and the abdomen of the occupant. It is usually used together with a head protection system.,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,5,A head and thorax module protect the ribs, the abd
4、omen and the head of the occupant. It is usually used in cabriolet vehicle or vehicle not equipped with IC. It is mounted in the vehicle the same way as a thorax module.,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,6,The thorax and pelvis module protects the ri
5、bs the abdomen and the pelvis of the occupant. It pushes on the pelvis to increase the protection in severe crash or with poor vehicle characteristics. It is mounted in the vehicle the same way as a thorax module,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,7,S
6、AB visible,The bag opens the cover to deploy.,Seat upholstery,Seat frame,Section,General presentation : SAB,Module,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,8,SAB semi visible,The module is hidden behind seat upholstery but function is same as visible module,Side clip sewn on the seat
7、 upholstery,MODULE,Seat upholstery,SECTION,Opening line of the seat upholstery,After deployment,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,9,SAB unvisible,The bag must break the seam of the seat upholstery to get out,Seat upholstery,MODULE,SECTION,General pre
8、sentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,10,SAB in door,The bag must open the door cavity to get out. This is not preferred design, it has to be used for example at the back seat when the seat are removable and the module can not be in the seat.,MODULE fixed on door,D
9、oor trim,Cavity,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,11,REAR SAB,The module can be visible or unvisible,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,12,Components,X1,X1,X1,X1,X1,Mode de fixation,Cover,Deflector,Inf
10、lated bag,Inflator,Bracket if needed,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,13,Foldings,General presentation : SAB,3 main type of folding: Inboard Roll Outboard roll Z fold (not recommended due to OOP) The decision on the folding type is made by: - Deploy
11、ment performance (time, direction) - OOP requirements - Space in cover (very important to try to get as much space as possible from seat supplier),Date Impression: 10/23/202010/23/202010/23/20203/23/2021,14,SAB assembly,X1,X1,X1,X1,X1,Mode de fixation,1- Assembly deflector with inflator 2- Assembly
12、deflector/inflator in bag 3- Assembly bag in cover 4- Attachment of inflator on container 5- Bag folding 6- Cover close,General presentation : SAB,Module is then assemble onto seat frame with 2 nuts.,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,15,Bag pressure,Hybrid inflator (PYRO+GAZ)
13、TYPE ASH1,General presentation : SAB,Pyrotechnical inflator TYPE ASP2,See design guide lines for details,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,16,Bag,The bag is made from fabric closed by a seam, the silicon which gives impermeability is on the inside of the bag. Vents holes help
14、the gas evacuation which help the energy absorption. Some features can be added like tear seam, tether, diffuser loop,Vent,Seam,Inflator position,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,17,Better protection,Rib deflection curves,Rib deflection 27 mm,Rib de
15、flection 37 mm,- with SAB thorax,_ Without SAB thorax,General presentation : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,18,Validation,Simulation if possible. Static tests in fixture. Static tests in seat. Drop rig Sled tests OOP when requirements Full scale crash,General presentati
16、on : SAB,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,19,General presentation:Inflatable curtain (IC),Date Impression: 10/23/202010/23/202010/23/20203/23/2021,20,ProtectionTo protect occupants head during a side crash.,General presentation : Inflatable curtain,Pole crash,Car/car,Roll ove
17、r,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,21,Head protection by deploying a pressurized bag on the side of the head liner between the impact and the occupants heads.,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,22,The folded bag
18、is positioned between the head liner and the vehicle side frame. The inflator is positioned at the B pillar or C pillar.,Folded bag,Inflator,Folded bag,Head liner,Vehicle side frame,Inflator,Vehicle side frame, Forward,C pillar,General presentation : Inflatable curtain,Date Impression: 10/23/202010/
19、23/202010/23/20203/23/2021,23,General presentation : Inflatable curtain,Door mounted IC,Same function as an IC but located in the door, aimed at cabriolet cars.,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,24,Components,X1,X1,X1,X1,X1,Mode de fixation,FONCTION: Fix module on vehicle,Clip
20、s,Wrapper (PA, PP),FONCTION: maintain folded bag.,Bag,FONCTION: Maintain a pressurized volume,Complete module,Inflator,FONCTION: Give gas,Gas pipe (metal or plastic),FONCTION: diffuse gas into bag.,Other: Clamp,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/2020
21、3/23/2021,25,Folding,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,26,Bag pressure,The inflator will inflate the bag in less that 30ms.,Hybrid inflator (PYRO+GAZ) type ASH1 used for bag volume 12L,Hybrid inflator (PYRO+GAZ) type ASH2 used with bag
22、 volume 18L,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,27,Bag,The bag can be sewn or OPW:- 1: 2 main panels are assemble by a seam, silicon coating is inside the bag- 2: Weaving (One Piece Woven) simultaneously of the 2 panels of the bag , the
23、silicon is added on the outside of the bag.,Bag OPW,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,28,The IC function is to share the energy (or the velocity) of the occupant head. The deceleration of the head in a crash must be below 80g.,General
24、presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,29,Vehicle crash with and without IC,- with IC,- without IC,Acceleration head / time,Contact head/IC,Contact head/pole,With IC,Without IC,General presentation : Inflatable curtain,Date Impression: 10/23/202010
25、/23/202010/23/20203/23/2021,30,Validation,Simulation when possible. Static tests in fixture. Static tests in trims. Drop rig Sled tests OOP Full scale crash,General presentation : Inflatable curtain,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,31,Patent,General presentation : Side impact
26、,When developing a product it is important to check that: - Our design does not infringe existing patent. - If our design use a “new” feature then it should be patented. Contact Severine or Henning Koch for more details.,Date Impression: 10/23/202010/23/202010/23/20203/23/2021,32,Useful info,http:/www.nhtsa.dot.gov http:/www.hwysafety.org/ http:/www.sae.org/ Design guide lines:http:/ userid:designstd password:designstd2 Seat and vehicle integration are very important.,For more info contact Severine, Henry Lu or Justin Song.,General presentation : Side impact,个人观点供参考，欢迎讨论,