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Optimization of vehicle side panel to improve crashworthiness.

Kichumon Haldus
  • Technical Paper
  • 2019-28-2573
To be published on 2019-11-21 by SAE International in United States
The front of a car, though susceptible to the biggest impacts in terms of magnitude, has space and additional reinforcement to incorporate various safety measures. The rear has considerable amount of space to contain a proper crash box. The side of the car, though, doesn’t have this flexibility in design, the main limiting parameter being space. Any intrusion into the passenger cabin can result in serious injury or even death. The objective of this work is to improve the crashworthiness of a vehicle’s side so as to reduce intrusion into the passenger cabin. The work is focused on optimizing the door and B pillar. The optimized side panel is compared with the baseline model as per standard. ANSYS solver is used for the simulation. The optimized design applied to the door and B pillar will significantly improve crashworthiness of the vehicle side panel as a whole.
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DEVELOPMENT OF SMART BIKE FOR RIDER’S SAFETY THROUGH HELMET DETECTION

International Centre for Automotive Technology-Prateek Goel
  • Technical Paper
  • 2019-28-2458
To be published on 2019-11-21 by SAE International in United States
In today’s era, especially in young generation, the craze of motor bikes is really remarkable. As the bikers in our country are increasing, the road mishaps are also increasing day-by-day, due to which many deaths occur and most of them are caused by the negligence in wearing helmet. According to the Ministry of Road Transport and Highways, 1,50,785 people were killed in 4,80,652 road crashes in India in 2016. This translates into 55 crashes and 17 deaths every hour. In case of road crash deaths, Two-Wheeler topped the list with a percentage share of 29.42% followed by Trucks, Tempos, Tractors(25.9%) and Cars, Jeeps, Taxis (21.61%). In order to overcome the above mentioned problem, we are designing an intelligent system that detects the helmet and prevent the rider to ride the bike without wearing helmet which helps to reduce the death cases during an accident. Our task as an automobile engineer was to design a smart helmet that could automatically detected by the two-wheeler. A camera was installed near the speedometer (on the handle bar) of…
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Proposed Model to Implement a Blockchain for Secure Vehicle to Vehicle Communication

General Motors Technical Center India-Surya P. Palavalasa
  • Technical Paper
  • 2019-28-2433
To be published on 2019-11-21 by SAE International in United States
This paper proposes a model to implement a blockchain network that can host a system of autonomous vehicles which communicate through generic V2V protocols like DSRC and CV2X. The blockchain will be designed to function like a global database for V2V communication. The purpose behind the proposal of this model was to ensure a transparent and secure network between all autonomous vehicles which indirectly leads to reduced traffic congestion and takes us a step closer to zero crashes. This is made possible by the blockchain ledger’s enhanced encryption systems.
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Honda ready with new injury-reducing airbag

Automotive Engineering: October 2019

Bill Visnic
  • Magazine Article
  • 19AUTP10_08
Published 2019-10-01 by SAE International in United States

Starting next year, Honda will begin fitting vehicles with a new, advanced-design passenger-side front airbag that its engineers said is designed to mitigate brain and neck injuries by cradling the head like a baseball in a catcher's mitt. The design is particularly effective, Honda said, for angled impacts or when an occupant is not in optimal position when the crash occurs, reducing rotational acceleration of the head that can traumatize the brain.

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Factors Affecting the Severity of Motor Vehicle Traffic Crashes in Tunisia

SAE International Journal of Transportation Safety

Najran University, Saudi Arabia-Mounir Belloumi
University of Sousse, Tunisia-Fedy Ouni
  • Journal Article
  • 09-07-01-0006
Published 2019-08-19 by SAE International in United States
We investigate the contribution of several variables concerning the severity of accidents involving vehicle occupant and pedestrian victims in Tunisia. In order to investigate the effect of various explanatory variables, Odds Ratio (OR) effects are considered for both serious injury accidents and fatal accidents. The empirical results are of great variety. The vehicle-occupant severity model indicates that male drivers are associated with higher severity levels as compared to female drivers. Added to that, accidents occurring in rainy conditions increase the likelihood of fatal injuries but have no significant effect on other injury severity levels. Among driver contributory factors, a driver under the influence of alcohol or drug is associated with an increased risk of sustaining fatal injuries compared to other driver contributory factors. The season factor shows that accident severity during the summer season is high. Among time of accident, daytime periods indicate a high likelihood of severe injuries as compared to nighttime periods. Another finding of the study is that the day of accident and region of accident increases the probability of severe injury.…
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Factors Affecting the Severity of Motor Vehicle Traffic Crashes in Tunisia

SAE International Journal of Transportation Safety

Najran University, Saudi Arabia-Mounir Belloumi
University of Sousse, Tunisia-Fedy Ouni
  • Journal Article
  • 09-07-02-0006
Published 2019-08-19 by SAE International in United States
We investigate the contribution of several variables concerning the severity of accidents involving vehicle occupant and pedestrian victims in Tunisia. In order to investigate the effect of various explanatory variables, Odds Ratio (OR) effects are considered for both serious injury accidents and fatal accidents. The empirical results are of great variety. The vehicle-occupant severity model indicates that male drivers are associated with higher severity levels as compared to female drivers. Added to that, accidents occurring in rainy conditions increase the likelihood of fatal injuries but have no significant effect on other injury severity levels. Among driver contributory factors, a driver under the influence of alcohol or drug is associated with an increased risk of sustaining fatal injuries compared to other driver contributory factors. The season factor shows that accident severity during the summer season is high. Among time of accident, daytime periods indicate a high likelihood of severe injuries as compared to nighttime periods. Another finding of the study is that the day of accident and region of accident increases the probability of severe injury.…
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Parametric Analysis and Optimization of Variables Affecting the Brain Injury Criterion (BrIC) in Various Crash Scenarios

SAE International Journal of Transportation Safety

Bowhead (Systems and Technology Group), United States-Vikas Hasija
National Highway Traffic Safety Administration, United States-Erik G. Takhounts, Matthew J. Craig
  • Journal Article
  • 09-07-01-0005
Published 2019-08-19 by SAE International in United States
Incompressibility of the brain makes it susceptible to damage from shear strains. Head rotational motion can easily produce high shear strains causing brain injury. Since head injury criterion (HIC) does not account for rotational motion, a brain injury criterion (BrIC) was developed. To design potential countermeasures for reducing BrIC, it is important to investigate the parameters that influence BrIC. This article focuses on parametric analysis to examine the sensitivity of BrIC to vehicle design and crash-related parameters, and identifying important parameters which can be controlled in developing countermeasures for reducing BrIC. Global Human Body Models Consortium (GHBMC) 50th percentile male simplified human finite element (FE) model was used in this study. Four different analyses were conducted: a Design of Experiments (DOE) study to investigate sensitivity of BrIC to impact direction and crash pulse severity b DOE studies, with fixed crash severity, for frontal, far side oblique, and near side oblique crash modes to identify important vehicle design parameters influencing BrIC c Optimization for frontal, far side oblique, and near side oblique crash modes to minimize…
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Basic Science and Art of Aircraft Wreckage Reconstruction

Knutson Aviation Services-Donald F. Knutson
  • Book
  • R-480
Published 2019-06-25 by SAE International in United States

Basic Science and Art of Aircraft Wreckage Reconstruction is a unique title which addresses important aspects of investigating crashes, who does this kind of work, and how a healthy attitude and open mind are required to properly perform investigations. It also discusses what to expect from the on-scene part of the investigation, and the fundamental approaches to common types of wreckage reconstruction.

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The Navigator

Autonomous Vehicle Engineering: May 2019

Sam Abuelsamid
  • Magazine Article
  • 19AVEP05_03
Published 2019-05-01 by SAE International in United States

Lessons from the 737 Max-8 Debacle

It's always a tragedy when people die as a result of a machine malfunctioning. It's even more tragic if we fail to learn from that failure to make future machines safer.

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Eyes In the Sky

Aerospace & Defense Technology: May 2019

  • Magazine Article
  • 19AERP05_04
Published 2019-05-01 by SAE International in United States

For Drones, Combining Vision Sensor and IMU Data Leads to More Robust Pose Estimation

Drones (i.e. quadrotors) are a popular and increasingly wide-spread product used by consumers as well as in a diversity of industrial, military and other applications. Historically under the control of human operators on the ground, they're becoming increasingly autonomous as the cameras built into them find use not only for capturing footage of the world around them but also in understanding and responding to their surroundings. Combining imaging with other sensing modalities can further bolster the robustness of this autonomy.

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