Vehicle Safety Research in TGGS
Core Knowledge of Automotive Safety and Assessment Engineer Program and Research in TGGS Vehicle fundamentals and manufacturing process Vehicle and part Assessment Crash and human simulation Vehicle standard & Regulation
Overview Research with Integrated Automotive Safety System Active safety Pre-collision Safety Passive Safety Rescue Accident warning & Avoidance Passenger protection Damage mitigation Fast and Accessible Active Safety 1) Driver assistance system e.g. Lane Watch, Night vision 2) Vehicle Assist system e.g. ESC, ABS Pre-collision safety 1) Occupant Restraint system e.g. Pretension Seat Belt. 2) Seat adjustment Passive Safety 1) Occupant protection system e.g. Airbag, absorb energy material 2) Pedestrian protection system e.g. Airbag, material response 3) Structure integrity Rescue 1) Accident information for fast rescue 2) Rescue person can access occupants
Research Activities in ASAE Bus Structure crashworthiness Study of motorcycle grip force on Bus structure design and optimization Study of motorcycle grip force on Bus crashworthiness braking Development of rollover (ECE Motorcycle crash simulation Development of rollover R66) and frontal impact test pedulum rig braking distance Study of child postures and child seat (R29) for safety Bus chassis design and development (ECE R66) and MC rider brake behavior MC component test and evaluation Development of injury mitigation system for buses undr frontal impact Underrun guard rail for Truck frontal impact pendulum (R29) Motorcycle crash simulation Rear end underrun protection Bus & MC component test and evaluation Motorcycle Bus Driving behavior in Bangkok Truck Study of child postures and child seat for safety Vehicle safety Analysis of Vehicle to pedestrian Break test evaluation Car & collision using finite element human Pedestrian Driving head kinematic analysis under model (Car, bus,van,pickup) Frontal impact collision and occupant Pick-up frontal offset collision injury under influence of vehicle manufacturing during process in Thailand rebound Design and development of Analysis of Vehicle to pedestrian Driving head kinematic analysis under frontal offset collision during rebound phase pedestrian collision using finite friendly element human vehicle front phase model (Car, bus,van,pickup) Design and development of pedestrian Fatal Injury Analysis of for friendly vehicle front structure Pickup Vehicle Offset-frontal Collision Fatal Injury Analysis of Occupants for structure Pickup Vehicle Offset-frontal Collision Develop testing protocol for evaluating bus front end design
BUS Crashworthiness (Rollover R66)
Bus Crashworthiness (Impact R29) then click the placeholders to add your own pictures and captions.
Bus Driving Behaviour (Pedestrian Injury)
FMVSS No.223 - Rear underrun protective devices (RUPDs) Truck (UnderRun Design) FMVSS No.223 - Rear underrun protective devices (RUPDs)
Requirement of FMVSS No.223 - Rear underrun protective devices (RUPDs) Apply force to the guard in a forward direction such that the displacement rate of the force application device is constant and not less than 2 cm and not more than 9 cm per minute until the force specified for each test location below has been exceeded, or until the displacement of the force application device has reached 130 mm +0, -5 mm, whichever comes first.
CAR: Driving head kinematic analysis under frontal offset collision during rebound phase
Head acceleration in X direction against Time Head starting to rebound at t= 141 msec. Head rebound velocity (B-Pillar) VS. HIC Head hitting B-pillar t = 240 msec.
Pickup: Fatal Injury Analysis of Occupants for Pickup Vehicle Offset-frontal Collision FMVSS No.223 - Rear underrun protective devices (RUPDs)
Wheel Strength Characteristics of Motorcycle
Brand Size Price (Bath) Mass (kg) Max Load (KN) / Deform (mm.) Damage Type No brand 17 X 1.2 300-400 0.760 14.95 : 61.92 Distort => Broken Spoke Copied STD 17 X 1.4 250-350 1.370 18.50 : 99.34 Radius STD (Loosen Spoke) 17 X 1.4 450-550 1.575 19.30 : 114.39 Radius Genuine STD (Goshi) 17 X 1.4 450-550 1.575 21.50 : 106.86 Radius COMSTAR (Imported) 17 X 1.4 700-800 1.115 33.05 : 101.99 Only Broken Hub Genuine EXCEL (Japan) 17 X 1.2 1000-1100 0.850 24.90 : 100.60 Broken Spoke => Distort Genuine YOKO (Thai) 17 X 1.2 650-750 0.995 21.65 : 104.47 Radius Genuine DID (Japan) 17 X 1.4 1350-1450 1.100 27.80 : 110.51 Radius 35 Compression Load (KN) 30 25 20 15 10 5 0-5 No Brand Copied STD STD (loosen Spoke) Genuine STD COMSTAR EXCEL YOKO DID
Motorcycle: Study of motorcycle grip force on braking distance
Motorcycle: Post crash Kinematic simulation
High Speed Impact Low Speed Impact
Pedestrian: collision using finite element human model
Parameters Standard front end Modified front end HIC 1296 952.7 Resultant moment 214.960 Nm 184 Nm Resultant force 4922.3 N 2850.4 N Aluminium foam 86% porosity
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