8/12/2019 CRS-05-02e

1/20

GRSP informal group on CRS - May 13, 2008 1

Evaluation of the side impact test

procedure proposed by IHRA/SIWG

SP1: Car Accidents

WP1.1: Advanced side impact and compatibility

Task 1.1.4: Side Out of Position

Luis Martinez - INSIA-UPM

CRS-05-02

8/12/2019 CRS-05-02e

2/20

GRSP informal group on CRS - May 13, 2008 2

APROSYS Structure

Heavy

Vehicles

Accidents

Motorcycle

Accidents

Intelligent

Safety

Systems

Pedestrians

/ Cyclists

Accidents

Car

Accidents

Biomechanics

Virtual

Testing

SP1 SP2 SP3 SP4

SP5

SP6

SP7

8/12/2019 CRS-05-02e

3/20

GRSP informal group on CRS - May 13, 2008 3

Side impact testside impact tests

Advancedprotectionin multi vehiclelateral crashes

Advancedprotectionin multi vehiclelateral crashes

Protection insingle crashesinvolvingnarrow objects

Protection insingle crashesinvolvingnarrow objects

Improved headprotection inlateralimpacts

Improved headprotection inlateralimpacts

Evaluatingrisk fromdeployingside airbags

Evaluatingrisk fromdeployingside airbags

SP1 Car accidents. 1.1 Lateral impacts

IHRA/SIWG proposed test suite

All WP1.1 partners:

-BAST -Cellbond

-CRF -FIAT

-IDIADA -INSIA UPM

-Takata-Petri -TNO-Toyota -TRL

-TUG -VW

8/12/2019 CRS-05-02e

4/20

GRSP informal group on CRS - May 13, 2008 4

Side Out of Position.

Objectives

Review appropriateness of and evaluate the IHRA /

TWG proposal for Europe.

8/12/2019 CRS-05-02e

5/20

GRSP informal group on CRS - May 13, 2008 5

Side Out of Position

Documentation of reference

TWG ReportRecommended Procedures For

Evaluating Occupant Injury Risk

From Deploying Side Airbags

ISO TR 14933Road vehicles Test procedures for

Evaluating occupant interactions with

Deploying side impact airbags

8/12/2019 CRS-05-02e

6/20

GRSP informal group on CRS - May 13, 2008 6

Side Out of Position

Target positions.TWG (ISO 14933).

8/12/2019 CRS-05-02e

7/20

GRSP informal group on CRS - May 13, 2008 7

Side Out of Position

Approach

Limited evaluation of IHRA protocol:

Focus on EU situation.

Forward facing: Hybrid-III 3yo, 6yo, SID-IIs.

Rearward facing: Hybrid-III 3yo. Only curtain and seat mounted side airbags.

Including repeatability & reproducibility.

Effects of CRS: Fair and good group II&III seats.

Seat mounted side airbags and head thorax bags.

Forward facing: Hybrid-III 3yo, 6yo.

8/12/2019 CRS-05-02e

8/20

GRSP informal group on CRS - May 13, 2008 8

Side Out of Position

Effect of the CRS

Test laboratories:

IDIADA Hybrid III 3y dummy.

TNOHybrid III 6y dummy.

Test vehicle / airbag:

Toyota Corolla / seat mounted airbags. Test period:

May July 2005.

8/12/2019 CRS-05-02e

9/20

GRSP informal group on CRS - May 13, 2008 9

Side Out of Position

Effect of the CRS

8/12/2019 CRS-05-02e

10/20

GRSP informal group on CRS - May 13, 2008 10

Side Out of Position

Test specifications

IHRA SIWG protocol / 3yo/6yo Forward facing.

CRS installation according to manual.

CRS OOP positions according APROSYS workshop

Dummy instrumentation:

Focussed on draft injury criteria.

Head acceleration.

Upper/lower neck forces and moments.

Chest acceleration.

Sternum deflection.

8/12/2019 CRS-05-02e

11/20

GRSP informal group on CRS - May 13, 2008 11

Side Out of Position

CRS selection

All CRS ECR R44 approved.

Selection based on ADAC results.

Good seat:

Rmer KID / with & without back rest.

Poor seats: Simple booster (supermarket).

IWH variokid.

8/12/2019 CRS-05-02e

12/20

GRSP informal group on CRS - May 13, 2008 12

Side Out of Position

Test results / Injury criteria limits

8/12/2019 CRS-05-02e

13/20

GRSP informal group on CRS - May 13, 2008 13

Side Out of Position

Test results / Hybrid III 3yo

8/12/2019 CRS-05-02e

14/20

GRSP informal group on CRS - May 13, 2008 14

Side Out of Position

Test specifications

8/12/2019 CRS-05-02e

15/20

GRSP informal group on CRS - May 13, 2008 15

Side Out of Position

Test results / Hybrid III 3yo

8/12/2019 CRS-05-02e

16/20

GRSP informal group on CRS - May 13, 2008 16

Side Out of Position

Test results / Hybrid III 3yo

8/12/2019 CRS-05-02e

17/20

GRSP informal group on CRS - May 13, 2008 17

Side Out of Position

Test results / Hybrid III 6yo

8/12/2019 CRS-05-02e

18/20

GRSP informal group on CRS - May 13, 2008 18

Side Out of Position

Test CRS conclusions

No serious airbag interaction (loading < 15%) between

airbag and child in CRS.

Most injury values lower than standard IHRA scenarios.

Neck tension force higher with CRS but still very low

8/12/2019 CRS-05-02e

19/20

GRSP informal group on CRS - May 13, 2008 19

Side Out of Position

Main findings

IHRA/TWG reproducibility very difficult, repeatability is possible.

TWG interpretation needs clarification (a.o. seatforemost/rearmost position).

Tests with CRS show that to cover the EU situation, the TWGproposal covers the worst case situation.

From accident studies: side OOP is not (yet?) an issue in

Europe.

Any new tendency to (re)introduction of door mounted airbags inEurope should carefully be monitored because of the potentialhigher injury risk in case of out-of-position.

8/12/2019 CRS-05-02e

20/20

THANKS FOR YOUR ATTENTION!!!