Validation of Event Data Recorders in Side-Impact Crash Tests

2014 ◽  
Vol 2 (1) ◽  
pp. 130-164 ◽  
Author(s):  
Ada Tsoi ◽  
Nicholas Johnson ◽  
H. Gabler
Keyword(s):  
Side Impact ◽  
Event Data ◽  
Crash Tests

A Sub-System Test Methodology for Simulating EEVC Side Impact

2000 ◽  
Author(s):  
Krishnakanth Aekbote ◽  
Srinivasan Sundararajan ◽  
Joseph A. Prater ◽  
Joe E. Abramczyk
Keyword(s):  
Full Scale ◽  
Test Method ◽  
Side Impact ◽  
Vehicle Body ◽  
Crash Test ◽  
Vehicle Performance ◽  
Test Methodology ◽  
Supporting Frame ◽  
The Impact ◽  
Crash Tests

Abstract A sled based test method for simulating full-scale EEVC (European) side impact crash test is described in this paper. Both the dummy (Eurosid-1) and vehicle structural responses were simulated, and validated with the full-scale crash tests. The effect of various structural configurations such as foam filled structures, material changes, rocker and b-pillar reinforcements, advanced door design concepts, on vehicle performance can be evaluated using this methodology at the early stages of design. In this approach, an actual EEVC honeycomb barrier and a vehicle body-in-white with doors were used. The under-hood components (engine, transmission, radiator, etc.), tires, and the front/rear suspensions were not included in the vehicle assembly, but they were replaced by lumped masses (by adding weight) in the front and rear of the vehicle, to maintain the overall vehicle weight. The vehicle was mounted on the sled by means of a supporting frame at the front/rear suspension attachments, and was allowed to translate in the impact direction only. At the start of the simulation, an instrumented Eurosid-1 dummy was seated inside the vehicle, while maintaining the same h-point location, chest angle, and door-to-dummy lateral distance, as in a full-scale crash test. The EEVC honeycomb barrier was mounted on another sled, and care was taken to ensure that weight, and the relative impact location to the vehicle, was maintained the same as in full-scale crash test. The Barrier impacted the stationary vehicle at an initial velocity of approx. 30 mph. The MDB and the vehicle were allowed to slide for about 20 inches from contact, before they were brought to rest. Accelerometers were mounted on the door inner sheet metal and b-pillar, rocker, seat cross-members, seats, and non-struck side rocker. The Barrier was instrumented with six load cells to monitor the impact force at different sections, and an accelerometer for deceleration measurement. The dummy, vehicle, and the Barrier responses showed good correlation when compared to full-scale crash tests. The test methodology was also used in assessing the performance/crashworthiness of various sub-system designs of the side structure (A-pillar, B-pillar, door, rocker, seat cross-members, etc.) of a passenger car. This paper concerns itself with the development and validation of the test methodology only, as the study of various side structure designs and evaluations are beyond the scope of this paper.

Crash Tests and the Loads over Driver Head in Different Side Impact Cases

2016 ◽  
Vol 823 ◽  
pp. 181-186 ◽  
Author(s):  
Nicolae Ispas ◽  
Mircea Nastasoiu
Keyword(s):  
Head Injury ◽  
Real World ◽  
Traffic Accidents ◽  
Side Impact ◽  
Passive Safety ◽  
Occupant Safety ◽  
The Real ◽  
Occupant Protection ◽  
Head Injury Criterion ◽  
Crash Tests

Car occupant protection in traffic accidents is a key target of today cars manufacturers. Known as active or passive safety, many technological solutions were developing over the time for an actual better car’s occupant safety. In the real world, in traffic accidents are often involved cars from different generations with various safety historical solutions. The aims of these papers are to quantify the influences over the car driver head loads in cases of different generation of cars involved in side crashes. For each case the experimental load results can be future used to calculate Head Injury Criterion (HIC) [1]

EXPLORATORY STUDY ON AIRBAG SUITABILITY FOR LOW ENGINE CAPACITY MOTORCYCLES

2016 ◽  
Vol 78 (4) ◽  
Author(s):  
Aqbal Hafeez Ariffin ◽  
Mohd Syazwan Solah ◽  
Azhar Hamzah ◽  
Mohd Hafzi Md Isa ◽  
Zulhaidi Mohd Jawi ◽  
...  
Keyword(s):  
Exploratory Study ◽  
High Speed ◽  
Side Impact ◽  
Test Results ◽  
Passenger Cars ◽  
High Speed Video ◽  
Video Recordings ◽  
Motorcycle Crashes ◽  
Crash Tests ◽  
Engine Capacity

Motorcyclist constituted more than 50% of road deaths in Malaysia. Statistics showed that most fatal motorcyclist crashes involved passenger cars: with sideswipe or side impact reported to be the most frequent crash configurations. Many related studies have been performed to completely understand such motorcycle crashes which resulted in many safety inventions. These include installation of airbag onto motorcycle to study its effectiveness in potentially reducing motorcyclist’s injury. However, previous related studies known mainly dealt airbag’s effectiveness for large cc motorcycles. Hence, an exploratory study was conducted to study airbag’s suitability in mitigating rider’s injury during collision for motorcycle with low engine capacity (cc). Two different full-scale crash tests of motorcycle (with and without mounted airbag) side-impacting passenger car were conducted in accordance to ISO 13232. The test results in terms of high-speed video recordings (crash kinematics), motorcycle damage profiles and dummy injuries were analysed and discussed. It could be suggested from the results obtained that an airbag system for low cc motorcycle is feasible and further study is needed for better airbag concept and design which could reduce motorcyclist injury during collision.

Validation of Event Data Recorders in High Severity Full‑Frontal Crash Tests

2013 ◽  
Vol 1 (1) ◽  
pp. 76-99 ◽  
Author(s):  
Ada Tsoi ◽  
John Hinch ◽  
Richard Ruth ◽  
Hampton Gabler
Keyword(s):  
Event Data ◽  
Frontal Crash ◽  
High Severity ◽  
Crash Tests

Crashworthiness Determination of Side Doors and B Pillar of a Vehicle Subjected to Pole Side Impact

2014 ◽  
Vol 663 ◽  
pp. 552-556 ◽  
Author(s):  
A.H. Lilehkoohi ◽  
A.A. Faieza ◽  
B.B. Sahari ◽  
A.A. Nuraini ◽  
M. Halali
Keyword(s):  
Impact Test ◽  
Simulation Method ◽  
Side Impact ◽  
Occupant Protection ◽  
Euro Ncap ◽  
Assessment Program ◽  
Static Object ◽  
Object Based ◽  
Crash Tests

Pole Side Impact Test is one out of three crash tests described by Euro NCAP standard for star rating of a vehicle and is required for assessing the Adult Occupant Protection. In this paper the goal is to determine the crashworthiness of side doors and B pillar in a Pole Side Impact Test based on Euro New Car Assessment Program (Euro-NCAP) using computer and simulation method. In this matter, a vehicle model has been prepared and meshed using Hypermesh and CATIA. The velocity of 29 km/h has been assigned to the vehicle which was on top of a cart while the pole has been assigned as a rigid static object based on Euro NCAP requirements specifically. Results show that different amounts of energy will be absorbed by each part, such as the side doors and the B pillar, and each part has a different effect on the crashworthiness of the vehicle in a Pole Side Impact Test. It can be concluded that to increase the amount of absorbed energy in a Pole Side Impact Test, the part which has more influence should be taken into greater consideration.

Evaluation of Threshold Values of Acceleration Severity Index by Using Event Data Recorder Technology

2005 ◽  
Vol 1904 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Douglas Gabauer ◽  
Hampton C. Gabler
Keyword(s):  
Longitudinal Direction ◽  
Threshold Value ◽  
Severity Index ◽  
Vehicle Speed ◽  
Event Data ◽  
Abbreviated Injury Scale ◽  
Roadside Safety ◽  
Late Model ◽  
Occupant Injury ◽  
Crash Tests

The acceleration severity index (ASI) is used to evaluate the potential for occupant risk in full-scale crash tests involving roadside safety hardware. Despite the widespread use of the index across Europe, there is a lack of research relating this metric to occupant injury in real-world collisions. Recent installation of event data recorders (EDRs) in a number of late-model vehicles presents a different perspective on the assessment of the validity of occupant risk based on the ASI. EDRs are capable of electronically recording data such as vehicle speed, brake status, and throttle position just before and during an accident. Of particular interest is the EDR's ability to document the deceleration of a vehicle during a collision event. This research used EDR technology to investigate the correlation between the ASI threshold limits and the potential for occupant injury in crash events. The longitudinal ASI was found to be a good predictor of overall injury, and the intent of the current preferred threshold value of 1.0 appears valid. Limitations include investigation of the longitudinal direction only, lack of injuries on the abbreviated injury scale (AIS) in excess of AIS 3, and no control for occupant compartment intrusion.

Study on Characteristics of Event Data Recorders in Japan; Analysis of J-NCAP and Thirteen Crash Tests

2011 ◽  
Vol 4 (1) ◽  
pp. 665-676 ◽  
Author(s):  
Nobuaki Takubo ◽  
Tamotsu Hiromitsu ◽  
Kenshiro Kato ◽  
Kenji Hagita ◽  
Ryo Oga ◽  
...  
Keyword(s):  
Event Data ◽  
Crash Tests

Evaluating Human Risk in Side Impact Collisions with Roadside Objects

2000 ◽  
Vol 1720 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Malcolm H. Ray ◽  
Kamarajuggada Hiranmayee
Keyword(s):  
Velocity Profile ◽  
Evaluation Criteria ◽  
Side Impact ◽  
Crash Test ◽  
Test Evaluation ◽  
Simple Method ◽  
Human Risk ◽  
Risk Of Injury ◽  
Conservative Values ◽  
Crash Tests

Full-scale crash tests are traditionally used to assess the danger posed by roadside object. Crash test evaluation criteria should relate the observable response of the vehicle and the struck object to the likely risk of injury to vehicle occupants in similar real-world collisions. Side impact collisions are particularly serious impacts, but no evaluation guidelines exist. A simple method is presented for determining human risk in a side impact collision with a roadside object from the velocity profile of the impacted face of the struck object. This method not only eliminates the use of anthropometric test devices in crash tests, but also gives conservative values to account for the variable occupant position at the time of impact.

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