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Safety Test Methodology and Structural Crashworthiness and Occupant Safety, 2010

2010-06-01
The 16 papers in this technical paper colection present advancement of auto safety-related technologies that deal with roof crush testing, pedestrian safety, front, side and rear impact, simulation of interior head impact, FE study of factors on risk of KTH injuries in frontal impact, CAE methods and testing, and field modeling and assessment techniques.
Collection

Rear Impact, Side Impact, and Rollover, 2010

2010-06-01
This technical paper collection contains 20 papers presenting new technologies and research in the area of vehicle rear-end collision, rollover collision and lateral impacts. Papers may be related to analysis of crash compatibility, statistical data analysis, design of vehicle systems, biomechanics and dummy development. To see a listing of papers included in this special publication, click on the papers link below.
Collection

Rear Impact, Rollover, Side Impact, 2011

2011-04-12
The 23 papers in this technical paper collection address occupant protection with regards to rear impact, rollover, and side impact. Topics include: the effectiveness of curtain side air bags; side impact sensing calibration; door side impact countermeasure; off-road rollover dynamics; steer-induced rollovers; estimating variation in roof strength; occupant pocketing kinematics during whiplash assessments; rear occupant head restraint interaction in high-severity rear impact using BioRID and HIII; and more.
Collection

Safety Test Methodology and Structural Crashworthiness and Occupant Safety, 2011

2011-04-12
The 13 papers in this technical paper collection look at occupant protection in terms of structural crashworthiness and safety test methodology. Topics covered include: crash energy in vehicle-to-vehicle (VTV) impacts; plastic beams for automobile low-speed rear impact; evaluation of dynamic roof deformation in rollover crash tests; vehicle integrated non-intrusive monitoring of driver biological signals; and more.
Collection

Advanced Analysis, Design and Optimization of Materials, Restraints, and Structures for Enhanced Automotive Safety and Weight Reduction, 2011

2011-04-12
The 19 papers in this technical paper collection cover innovative ideas to enhance automotive safety with improved material constitutive modeling; analysis methods; simulation and pre/post processing tools; optimization techniques; finite element model updating; model validation and verification techniques; restraint systems; and lightweight material applications and designs.
Collection

Advanced Analysis, Design, and Optimization of Materials, Restraints, and Structures for Enhanced Automotive Safety and Weight Reduction, 2012

2012-04-13
The 11 papers in this technical paper collection focus on Advanced Analysis, Design, and Optimization of Materials, Restraints, and Structures for Enhanced Automotive Safety and Weight Reduction. Topics covered include side crash pressure sensor prediction, passenger seat belt reminders, DP980 steels, and more. The 11 papers in this technical paper collection focus on Advanced Analysis, Design, and Optimization of Materials, Restraints, and Structures for Enhanced Automotive Safety and Weight Reduction. Topics covered include side crash pressure sensor prediction, passenger seat belt reminders, DP980 steels, and more.
Collection

Rollover, and Side Impact, Safety Test Methodology, and Structural Crashworthiness 2012

2012-04-13
The 22 papers in this technical paper collection discuss occupant safety, including rollover and side impact, safety test methodology, and structural crashworthiness. Topics covered included vehicle design, restraint systems design, crash test analysis, CAE simulations and statistical trends analysis, post-crash pedestrian kinematics, and more. The 23 papers in this technical paper collection discuss occupant safety, including rollover and side impact, safety test methodology, and structural crashworthiness. Topics covered included vehicle design, restraint systems design, crash test analysis, CAE simulations and statistical trends analysis, post-crash pedestrian kinematics, and more.
Collection

Biomechanics, 2012

2012-04-13
The 8 papers in this technical paper collection focus on occupant protection. Topics covered include headform impact tests, simulated injury monitors (SIMon), injury factors in vehicles in small-overlap frontal crashes, and more. The 7 papers in this technical paper collection focus on occupant protection. Topics covered include headform impact tests, simulated injury monitors (SIMon), injury factors in vehicles in small-overlap frontal crashes, and more.
Collection

Accident Reconstruction, 2014

2014-04-01
This technical paper collection focuses on the latest research related to methods and techniques for reconstructing vehicular crashes involving wheeled and tracked vehicles, pedestrians, and roadside features. Emphasis is placed on experimental data and theoretical methods that will enable reconstructionists to identify, interpret and analyze physical evidence from vehicular crashes.
Collection

Occupant Protection: Accident Reconstruction, 2015

2015-04-14
This technical paper collection focuses on the latest research related to methods and techniques for reconstructing vehicular crashes involving wheeled and tracked vehicles, pedestrians, and roadside features. Emphasis is placed on experimental data and theoretical methods that will enable reconstructionists to identify, interpret and analyze physical evidence from vehicular crashes
Technical Paper

Optimizing Seat Belt and Airbag Designs for Rear Seat Occupant Protection in Frontal Crashes

2017-11-13
2016-32-0041
Recent field data have shown that the occupant protection in vehicle rear seats failed to keep pace with advances in the front seats likely due to the lack of advanced safety technologies. The objective of this study was to optimize advanced restraint systems for protecting rear seat occupants with a range of body sizes under different frontal crash pulses. Three series of sled tests (baseline tests, advanced restraint trial tests, and final tests), MADYMO model validations against a subset of the sled tests, and design optimizations using the validated models were conducted to investigate rear seat occupant protection with 4 Anthropomorphic Test Devices (ATDs) and 2 crash pulses.
Standard

Color Coding of Child Restraint Labels

2021-04-07
WIP
J3250
Define recommendations for color coding of child restraint labels, specifically focused on the information contained therein and whether it provides information for installation in a forward facing, rear facing, or booster mode.
Standard

Guidelines for Implementation of the Child Restraint Anchorage System or LATCH System in Motor Vehicles and Child Restraint Systems

2020-02-17
WIP
J2893
1. SCOPE These guidelines should be considered: When implementing the LATCH system in vehicle seating positions that will be designated by the vehicle owner’s manual and in the information included in the owners manual. When implementing the LATCH system in child restraint designs that include the LATCH system and in the information included in the instruction manual
Journal Article

Biomechanical Evaluation of Headwear System Prototypes using Digital Human Modeling

2009-06-09
2009-01-2267
Digital human modeling allows for the evaluation of equipment designs before physically building and testing prototypes. This paper presents an example of how digital human modeling was used to perform biomechanical studies on four new designs for future infantry headwear systems. Range of Motion (ROM) and cervical spine forces and moments were compared using static and dynamic simulations in a virtual environment. Results confirmed that headwear system prototypes with optimal overall mass and Centre of Mass (CM) location, as determined by previous human subject trials, exerted the least amount of biomechanical loading. Facial protection was favorable when considering forces and moments in the cervical spine, however when considering ROM, the rigid prototype mandible guards used in this evaluation are not recommended. The shape of a more accommodating mandible guard was developed, and the option to remove facial protection for some tasks was recommended.
Journal Article

The Effectiveness of Curtain Side Air Bags in Side Impact Crashes

2011-04-12
2011-01-0104
Accident data show that the head and the chest are the most frequently injured body regions in side impact fatal accidents. Curtain side air bag (CSA) and thorax side air bag (SAB) have been installed by manufacturers for the protection devices for these injuries. In this research, first we studied the recent side impact accident data in Japan and verified that the head and chest continued to be the most frequently injured body regions in fatal accidents. Second, we studied the occupant seating postures in vehicles on the roads, and found from the vehicle's side view that the head location of 56% of the drivers was in line or overlapped with the vehicle's B-pillar. This observation suggests that in side collisions head injuries may occur frequently due to contacts with the B-pillar. Third, we conducted a side impact test series for struck vehicles with and without CSA and SAB.
Journal Article

FPGA-Based Development for Sophisticated Automotive Embedded Safety Critical System

2014-04-01
2014-01-0240
As software (SW) becomes more and more an important aspect of embedded system development, project schedules are requiring the earlier development of software simultaneously with hardware (HW). In addition, verification has increasingly challenged the design of complex mixed-signal SoC products. This is exacerbated for automotive safety critical SoC products with a high number of analogue interfaces (sensors and actuators) to the physical components such as an airbag SoC chipset. Generally, it is widely accepted that verification accounts for around 70% of the total SoC development. Since integration of HW and SW is the most crucial step in embedded system development, the sooner it is done, the sooner verification can begin. As such, any approaches which could allow verification and integration of HW/SW to be deployed earlier in the development process and help to decrease verification effort, (e.g.: accelerate verification runs) are of extreme interest.
Technical Paper

Further Non-Deployment and Deployment Laboratory Experiments Using a Toyota Auris 2007 Event Data Recorder

2020-04-14
2020-01-1329
The experimental campaign discussed in publication 2019-01-0635 was extended to emulate more vehicle parameters and also to increase severity leading to deployment event. The engine speed (RPM) and Accelerator Pedal Position (APP) were emulated using LabVIEW and added to the previously reported emulated parameters of wheel speeds and brake status. Overlapping non-deployment events were generated and the EDR data is presented enriched with additional (faster) CAN bus data sniffed from the vehicle harness. While the non-deployment events were still generated using the rubber mallet in pendulum configuration as in 2019-01-0635, a series of tests were performed using an Izod pendulum to incrementally increase event severity until deployment event was generated. The Izod pendulum was instrumented with a rotational potentiometer to measure its instantaneous angle while laboratory accelerometers were used to separately measure acceleration.
Journal Article

Finite-Element-Based Transfer Equations: Post-Mortem Human Subjects versus Hybrid III Test Dummy in Frontal Sled Impact

2015-04-14
2015-01-1489
Transfer or response equations are important as they provide relationships between the responses of different surrogates under matched, or nearly identical loading conditions. In the present study, transfer equations for different body regions were developed via mathematical modeling. Specifically, validated finite element models of the age-dependent Ford human body models (FHBM) and the mid-sized male Hybrid III (HIII50) were used to generate a set of matched cases (i.e., 192 frontal sled impact cases involving different restraints, impact speeds, severities, and FHBM age). For each impact, two restraint systems were evaluated: a standard three-point belt with and without a single-stage inflator airbag. Regression analyses were subsequently performed on the resulting FHBM- and HIII50-based responses. This approach was used to develop transfer equations for seven body regions: the head, neck, chest, pelvis, femur, tibia, and foot.
Technical Paper

Structural Analysis and Design Modification of Seat Rail Structures in Various Operating Conditions

2020-04-14
2020-01-1101
This paper is based on, and in continuation of the work previously published in ASEE NCS Conference held in Grand Rapids, MI [1]. Automotive seating rail structures are one of the key components in the automotive industry because they carry the entire weight of passenger and they hold the structure for seating foams and other assembled key components such as side airbag and seatbelt systems. The entire seating is supported firmly and attached to the bottom bodywork of the vehicle through the linkage assembly called the seat rails. Seat rails are adjustable in their longitudinal motion which plays an important role in giving the passengers enough leg room to make them feel comfortable. Therefore, seat rails under the various operating conditions, should be able to withstand the weight of the passenger along with the other assembled parts as mentioned above. Also, functional requirements such as crash safety is very important to avoid or to minimize injuries to the occupants.
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