TWG TP Study

1
Side airbag OOP study
Side airbag TWG Meeting on October 25. 2001
Honda RD
2
Outline

• Airbag philosophy and OOP test status.
• OOP test procedure study.

3
Airbag philosophy and OOP test status
Side Effect
Occupant Protection
Balance
Frontal airbag system
Side airbag system

• Top mount airbag
• De-power inflator
• Folding for quick deployment
• Material
• Shape

• Seat mount airbag
• De-power inflator
• Folding for a performance to go into
  narrow space
• Seat tear line structure for de-power inflator

Multi stage inflator
Occupant Posture Detecting System
Crash severity
i-SRS
i-side airbag system
4
Airbag philosophy and OOP test status

• Support Side airbag TWG orientation(contribution).
  
• Challenging High-performance airbag system
  research and development.

• Applying side airbag system with OPDS.

• Possibility be met TWG OOP recommendation.
  (Canadian MOU)

5
OOP test procedure study
3.3.2 Test for seat-mounted system

6
OOP test procedure study
Injury severity
HY3 C3Y on Booster seat 3.3.2.1 position is most
important in our airbag system.
A (TWG3.2.2.1)ltBltCltD
Studied using prototype side airbags based on
NHTSA's proposal. a) Dummy setting problems
b) Neck injury mechanism
7
OOP test procedure study
To study injury variation of relative location
between A/B module and C3Y Dummy head.
Case 1. Airbag module height position in seat
Case 2. Dummy height position along the seat
surface
8
OOP test procedure study
Case 1. Airbag module height position in seat
A
Position AReference to TWG procedure
Position BMove module 120mm upward
Dummy head contacts seat surface
Reference to TWG procedure
Head behind clearance increases 0(A) to 110mm(B)
9
OOP test procedure study
Case 1. Airbag module height position in seat
A
B
Contact
110mm
10
OOP test procedure study
Case 2. Dummy height position with head
contacting the seat surface
50mm
0
50mm
11
OOP test procedure study
12
OOP test procedure study
Test results

• Test result deviations related to the setting
  procedure are found.
• Distance between head and airbag module is
  affected by airbag module height within the seat.
• Dummy (C3Y) neck injury criteria is very
  sensitive to distance between airbag module and
  head.