座椅安全气囊Training.ppt

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1、Severine Wollin ACR,Date Impression:8/19/2023,General presentation:Side impactBy Sverine Wollin Technical consultant Side impact.,Severine Wollin ACR,Date Impression:8/19/2023,ECE R95 EuroNCAP,US LINCAP,Pole test,Out Of Position(OOP),IIHS,General presentation:side impact,Requirements,FMVSS 214,Sever

2、ine Wollin ACR,Date Impression:8/19/2023,PROTECTION The airbag protect the occupant in a side crash,General presentation:SAB,Pole against vehicle,Vehicle against vehicle,Severine Wollin ACR,Date Impression:8/19/2023,Thorax airbag:a pressured bag is positioned between the door and the occupant to pro

3、tect the ribs and the abdomen of the occupant.It is usually used together with a head protection system.,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,A head and thorax module protect the ribs,the abdomen and the head of the occupant.It is usually used in cabriolet vehicle o

4、r vehicle not equipped with IC.It is mounted in the vehicle the same way as a thorax module.,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,The thorax and pelvis module protects the ribs the abdomen and the pelvis of the occupant.It pushes on the pelvis to increase the protec

5、tion in severe crash or with poor vehicle characteristics.It is mounted in the vehicle the same way as a thorax module,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,SAB visible,The bag opens the cover to deploy.,Seat upholstery,Seat frame,Section,General presentation:SAB,Mod

6、ule,Severine Wollin ACR,Date Impression:8/19/2023,SAB semi visible,The module is hidden behind seat upholstery but function is same as visible module,Side clip sewn on the seat upholstery,MODULE,Seat upholstery,SECTION,Opening line of the seat upholstery,After deployment,General presentation:SAB,Sev

7、erine Wollin ACR,Date Impression:8/19/2023,SAB unvisible,The bag must break the seam of the seat upholstery to get out,Seat upholstery,MODULE,SECTION,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,SAB in door,The bag must open the door cavity to get out.This is not preferred

8、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,Door trim,Cavity,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,REAR SAB,The module can be visible or unvisible,General presentation:S

9、AB,Severine Wollin ACR,Date Impression:8/19/2023,Components,X1,X1,X1,X1,X1,Mode de fixation,Cover,Deflector,Inflated bag,Inflator,Bracket if needed,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,Foldings,General presentation:SAB,3 main type of folding:Inboard RollOutboard rol

10、lZ fold(not recommended due to OOP)The decision on the folding type is made by:-Deployment performance(time,direction)-OOP requirements-Space in cover(very important to try to get as much space as possible from seat supplier),Severine Wollin ACR,Date Impression:8/19/2023,SAB assembly,X1,X1,X1,X1,X1,

11、Mode de fixation,1-Assembly deflector with inflator2-Assembly deflector/inflator in bag3-Assembly bag in cover4-Attachment of inflator on container5-Bag folding6-Cover close,General presentation:SAB,Module is then assemble onto seat frame with 2 nuts.,Severine Wollin ACR,Date Impression:8/19/2023,Ba

12、g pressure,Hybrid inflator(PYRO+GAZ)TYPE ASH1,General presentation:SAB,Pyrotechnical inflator TYPE ASP2,See design guide lines for details,Severine Wollin ACR,Date Impression:8/19/2023,Bag,The bag is made from fabric closed by a seam,the silicon which gives impermeability is on the inside of the bag

13、.Vents holes help 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,Severine Wollin ACR,Date Impression:8/19/2023,Better protection,Rib deflection curves,Rib deflection 27 mm,Rib def

14、lection 37 mm,-with SAB thorax,_ Without SAB thorax,General presentation:SAB,Severine Wollin ACR,Date Impression:8/19/2023,Validation,Simulation if possible.Static tests in fixture.Static tests in seat.Drop rigSled testsOOP when requirementsFull scale crash,General presentation:SAB,Severine Wollin A

15、CR,Date Impression:8/19/2023,General presentation:Inflatable curtain(IC),Severine Wollin ACR,Date Impression:8/19/2023,ProtectionTo protect occupants head during a side crash.,General presentation:Inflatable curtain,Pole crash,Car/car,Roll over,Severine Wollin ACR,Date Impression:8/19/2023,Head prot

16、ection by deploying a pressurized bag on the side of the head liner between the impact and the occupants heads.,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,The folded bag is positioned between the head liner and the vehicle side frame.The inflator is positio

17、ned 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,Severine Wollin ACR,Date Impression:8/19/2023,General presentation:Inflatable curtain,Door mounted IC,Same function as an

18、 IC but located in the door,aimed at cabriolet cars.,Severine Wollin ACR,Date Impression:8/19/2023,Components,X1,X1,X1,X1,X1,Mode de fixation,FONCTION:Fix module on vehicle,Clips,Wrapper(PA,PP),FONCTION:maintain folded bag.,Bag,FONCTION:Maintain a pressurized volume,Complete module,Inflator,FONCTION

19、:Give gas,Gas pipe(metal or plastic),FONCTION:diffuse gas into bag.,Other:Clamp,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Folding,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Bag pressure,The inflator will inflate t

20、he 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 volume 18L,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Bag,The bag can be sewn or OPW:-1:2 main panels are assemble by a sea

21、m,silicon coating is inside the bag-2:Weaving(One Piece Woven)simultaneously of the 2 panels of the bag,the silicon is added on the outside of the bag.,Bag OPW,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,The IC function is to share the energy(or the velocity

22、)of the occupant head.The deceleration of the head in a crash must be below 80g.,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Vehicle crash with and without IC,-with IC,-without IC,Acceleration head/time,Contact head/IC,Contact head/pole,With IC,Without IC,Ge

23、neral presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Validation,Simulation when possible.Static tests in fixture.Static tests in trims.Drop rigSled testsOOPFull scale crash,General presentation:Inflatable curtain,Severine Wollin ACR,Date Impression:8/19/2023,Patent,Gen

24、eral presentation:Side impact,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.,Severine Wollin ACR,Date Impression:8/19/2023,Useful info,http:/www.nhtsa.dot.gov http:/www.hwysafety.org/http:/www.sae.org/http:/guide lines:http:/and vehicle integration are very important.,For more info contact Severine,Henry Lu or Justin Song.,General presentation:Side impact,