VEHICLE CRASH SAFETY

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Prudence Carpenter
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1 VEHICLE CRASH SAFETY (Computer Aided Engineering) <Contents> 1. Vehicle Crashworthiness 2. Pedestrian Protection 3. Research for Whiplash Injury 4. Research for Lower Extremity Injury 5. Advanced Research for HEAD Injury 6. RCAR (Reduction of Repair Cost) 7. Vehicle Compatibility 8. Dynamic Rollover Vehicle Crash Safety 1.1 Frontal Impact(1) NCAP : New Car Assessment Program Vehicle Crashworthiness - Structural Integrity - Body g Control - Energy Absorption + Optimization of Rest. Sys. - Dual & Advanced A/Bag - P/T & L/L Seat Belt - Collapsable Steering Sys. 1. Vehicle Crashworthiness

Dynamic Rollover Vehicle Crash Safety 1.

2 1.2 Offset Impact Str g System Airbag Fold g Crash Pad Seat & Belt Pedals Sled Correlation 1. Vehicle Crashworthiness 1.3 Advanced Airbag Simulation (Driver side OOP) DAB OOP 5%ile 5%ile FEMALE DAB FOLDING INITIAL RUN AIRBAG CORRELATION OOP DEPLOYMENT DUMMY INITIAL POSITION 1. Vehicle Crashworthiness - AAB

3 Advanced Airbag Simulation (Driver side OOP) DAB OOP 5%ile 5%ile FEMALE

3 1.4 Side Impact NHTSA FMVSS 214 EUROPE S/IMPACT NHTSA SINCAP 1. Vehicle Crashworthiness 1.4 IIHS Side Impact 1. Vehicle Crashworthiness

4 Attachment #1 : TWG OOP Position Forward Facing Rearward Facing Outboard Facing 1.5 Fuel System Integrity (Rear Offset Impact) FMVSS 301(Current) FMVSS 301(Upgrade) 1. Vehicle Crashworthiness

5 2.1 EURO-NCAP(Pedestrian Protection) 1 Adult Headform 2 Child Headform 3 Upper Leg 4 Lower Leg Pedestrian Protection 3.1 Seat Modification for Whiplash Injury Reduction C1 Design Parameter Backset Neck Injury Criteria NIC = a v rel 2 rel NICmax T1 머리와 headrest 수직거리 Headrest 구조 / 재질 백폼두께 / 재질 프레임구조 a rel v rel 연결부위구조 Headrest requirements IIHS RCAR 가속도변화영향변수 Backset Headrest. 높이빽폼두께빽프레임구조빽폼재질연결부위구조 (Chest, T1) - - 두꺼울수록유리탈거시유리최적물성치강성약할수록유리 (Head, C1) 작을수록유리높을수록유리 Research for Whiplash Injury

2 + v rel 2 rel NICmax T1 머리와 headrest 수직거리 Headrest 구조 / 재질 백폼두께 / 재질 프레임구조 a rel v rel 연결부위구조 Headrest requirements IIHS RCAR

6 3.2 Active Headrest System Modeling of Front Seat with Active Headrest and Evaluation of Whiplash Injury Finding the mechanism of active head restraint and making a numerical model Comparison of the Neck Injury Criteria value between seats with and without active head restraint Modification of existing AHR and Development of new HYUNDAI system < Seat with AHR > Modified System < AHR Mechanism > New HYUNDAI System 3. Research for Whiplash Injury 4.1 THOR-LX Finite element modeling of THOR - LX Certification Tests Assembly level Dynamic Heel Impact Test Dynamic Ball Impact Test 4. Research for Lower Extremity Injury

Development of new HYUNDAI system < Seat with AHR > Modified System < AHR Mechanism > New HYUNDAI System 3. Research for Whiplash Injury 4.

7 4.2 H-MODEL LX - Foot and Ankle of Human Structure of Foot and Ankle 4. Research for Lower Extremity Injury 4.3 Lower Extremity of H-III Dummy Tibia and Ankle of H-III dummy (M R ) C = 225Nm, (F Z ) C = 35.9kN 4. Research for Lower Extremity Injury

3 Lower Extremity of H-III Dummy Tibia and Ankle of H-III

8 5.1 H-MODEL HEAD Fig.1 Median Section through the Skull Front View Posterior View Fig.2 Anatomy of Human Brain Fig.3 Overview of H-Head Model (Quarter Sectional View) 5. Advanced Research for HEAD Injury 5.2 H-MODEL HEAD Application Fig.4 Brain Components inside the skull (sagittal sectional view) 1. 누적변형률손상척도 (Cumulative Strain Damage Measure-CSDM) 2. 상대운동손상척도 (Relative Motion Damage Measure-RMDM) 3. 체팽창손상척도 (Dilatation Damage Measure-DDM) 5. Advanced Research for HEAD Injury

2 H-MODEL HEAD Application Fig.4 Brain Components inside the skull (sagittal sectional view) 1.

9 6.1 RCAR (Test Condition) FRONT TEST CONDITION Velocity : 15 km/h(~16km/h) Rigid Barrier U = Offset 40% R = 150mm const. Radius 10 Angled Barrier from REAR TEST CONDITION Moving Rigid Barrier U = Offset 40% R = 150mm const. Radius H=700 ±10mm Barrier Height Mass of MDB = 1000 ±10kg Vehicle Condition : Stop (Handbrake off) NEW RESEARCH AREA Bumper Over-ride/Under-run Rear Bumper Test Review 6. RCAR (Body Repairability) 6.2 Body Damageability and Repairability RADSUPT RADSUPT Collapse Zone S/FRAME FRT MTG BRKT S/FRAME FRT MTG S/FRAME FRT MTG 200mm Cutting line Integral Split 6. RCAR (Body Repairability)

Radius H=700 ±10mm Barrier Height Mass of MDB = 1000 ±10kg Vehicle Condition : Stop (Handbrake off) NEW RESEARCH AREA Bumper Over-ride/Under-run Rear

10 7.1 Hyundai Autonomous Crash Vehicle Sys. Alternating Current(12 khz) 30m 700~800m Emergency Remote Controller Vehicle No.1 1 km Vehicle No.2 Vehicle No. 1 Main Controller Data Recording System Communicating System Braking System Accelerating System Lead Antenna Speedometer Steering System System Configuration 7. Vehicle Compatibility 7.2 Mid vs Mid, Mid vs Mini Car-to-Car Offset Crash Mid vs Mid Mid vs Mini Mid Mini

11 7.3 Other Study 질량 Mass 강성 Stiffness 형상 Geometry 7. Vehicle Compatibility 8.1 Dynamic Flip Rollover Crash Test (60kph) Dynamic Rollover (Flip)

12 8.2 Dynamic Flip Rollover Site Map after Crash 5.0m RAMP 71.75cm QTR PNL RH CONTACT FENDER RH CONTACT ROOF, HOOD CONTACT FINAL POSITION 23.2m FRT REVERSED 0.70m 60 kph 3.4m 7.2m 12.0m 23.4m 4.4m 3.10m 3.72m 1.71m 8. Dynamic Rollover (Flip)

CONTACT FINAL POSITION 23.2m FRT REVERSED 0.70m 60 kph 3.

NCAP New Car Assessment Programme

NCAP New Car Assessment Programme New Car Assessment Programme Harald Zellmer Autoliv B.V. & Co. KG, Elmshorn, Germany International Course on Transportation Planning and Safety New Delhi December 2010 PRIVATE/PROPRIETARY : New Car Assessment