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Injury Reduction in Vehicle to Pedestrian Collision using Deployable Pedestrian Protection System in Vehicles

International Centre For Automotive Tech-Jitendra Singh Gaur
  • Technical Paper
  • 2019-28-2551
To be published on 2019-11-21 by SAE International in United States
Head injuries are the main source of road fatalities in when a pedestrian is involved in an accident with the vehicle. The frontal part of vehicle such as engine hood, lower-windshield area and A-pillars are the possible location of head impact in such accidents. The head impact with hard points located in these areas result in the fatal head injuries. The effect of impact can be reduced by using the deployable pedestrian protection systems (DPPS) such as hood-lifters and windshield airbag in the vehicle. The study shows how these systems are effective in reducing the fatalities in pedestrian accidents and how to evaluate the performance of these deployable systems.
 

Autonomous Car in India

Maruti Suzuki India, Ltd.-Siddharth Agnihotri
  • Technical Paper
  • 2019-28-2522
To be published on 2019-11-21 by SAE International in United States
Automation is expanding in every possible direction and it was only time before it reached the Automobile sector. There has been tremendous traction towards autonomous cars since last 2-3 yrs as a probable solution to reduce accidents and promote safe and comfortable commute. Many companies have expressed their interest in developing some part(s) of it and when would all of this culminate resulting in a fully autonomous car. But as every coin has two aspects so same does automation. This paper covers the future of autonomous cars from Indian perspective, covering possible challenges, complex use cases, advantages, technology enablers, economy outlook etc. India has the dubious honor of ranking first in road deaths in the world at present & accounts for 10 percent of global road accidents with more than 1.46 lakh fatalities annually. Major automotive and tech companies in world are moving towards Autonomous technology for vehicles to make roads safer and reduce the no. of deaths due to road accident. Many companies have already started testing their vehicle on roads, created separate verticals…
 

Braking Requirements for Optimizing Autonomous Emergency Braking Performance

Applus IDIADA-Álvaro Esquer Molina, Jordi Bargallo
  • Technical Paper
  • 2019-01-2127
To be published on 2019-09-15 by SAE International in United States
The continuous improvement on vehicle technology has successfully helped to decrease general road fatalities figures in the last years. Vehicle technology new developments have contributed to improve vehicle structural performance and therefore passive protection, but also the inclusion of electronic control units has provided new opportunities to expand active safety systems. This is the case for systems like anti-lock braking systems (ABS), electronic stability control (ESC) and brake assist (BA) among many others. A more advanced generation of active systems includes sensorial units that monitor vehicle’s surrounding and detect potential hazards, such as an imminent collision, and performs an automatically and commanded emergency braking to lessen or mitigate the consequences of the impending accident. For this latest system, the so-called autonomous emergency braking (AEB), various consumer testing protocols, such as NHTSA and NCAP protocols, propose and periodically update test catalogues in order to evaluate the performance of such systems and later to inform potential consumers. This study aims to determine what basic braking system requirements and its target setting shall be demanded on the definition…
 

Comparative Analysis between American and European Requirements for Electronic Stability Control (ESC) Focusing on Commercial Vehicles

Ford Motor Company-Silvia Faria Iombriller, Wesley Bolognesi Prado, Marco Andre Silva
  • Technical Paper
  • 2019-01-2141
To be published on 2019-09-15 by SAE International in United States
Analysis of road accident has showed that an important portion of fatal crashes involving commercial vehicles is caused by rollovers. ESC systems in commercial vehicles can reduce rollovers, severe understeer or oversteer conditions and minimize occurences of jackknifing conditions. Several studies have estimated that this positive effect of ESC on road safety is substantial. In Europe, Electronic Stability Control (ESC) is expected to prevent by far the most fatalities and injuries: about 3,000 fatalities (-14%), and about 50,000 injuries (-6%) per year. In Europe, Electronic Stability Control Systems is mandatory for all vehicles (since Nov 1st, 2011 for new types of vehicle and Nov 1st 2014 for all new vehicles), including commercial vehicles, trucks and trailers. On 2015, NHTSA published Federal Motor Vehicle Safety Standard (FMVSS) No. 136, Electronic stability control systems for heavy vehicles, requiring electronic stability control (ESC) systems on truck tractors and buses with a gross vehicle weight rating greater than 11,793 kilograms (26,000 pounds) that were implemented until 2017. In South America, CONTRAN Resolution 641/2016 establishes mandatory installation of Electronic Stability…
 

‘Road Race’ for AV Testing May Be Slowing

Autonomous Vehicle Engineering: May 2019

Stuart Birch
  • Magazine Article
  • 19AVEP05_10
Published 2019-05-01 by SAE International in United States

To optimize safety, as well as cost- and time-efficiency, experts espouse increased virtual testing of autonomous vehicles as preferable to the industry's rush to test on public roads.

Chris Hoyle, technical director of software specialist rFpro, believes the race by auto and technology companies to be ahead of competitor programs involving autonomous vehicle (AV) testing on public roads is losing momentum.

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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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Stapp Car Crash Journal Vol. 62, 2018

  • Book
  • B-STAPP2018
Published 2019-04-30 by The Stapp Association in United States
This title includes the technical papers developed for the 2018 Stapp Car Crash Conference, the premier forum for the presentation of research in impact biomechanics, human injury tolerance, and related fields, advancing the knowledge of land-vehicle crash injury protection. The conference provides an opportunity to participate in open discussion about the causes and mechanisms of injury, experimental methods and tools for use in impact biomechanics research, and the development of new concepts for reducing injuries and fatalities in automobile crashes. The topics covered this year include: • Effect of restraints on chest deflection • Thoracic response in dynamic front loading • Side impact assessments and comparisons • Front airbag deployment rates and implications • Reanalysis of experimental brain strain data • Modeling pedestrian impacts • Short communications o New data on the biomechanics of injury and human tolerance, new methods and tools to study the biomechanics of injury, new developments in occupant protection systems, and new concepts on the biomechanics of injury based on experimental and analytical studies.
 

Has Electronic Stability Control Reduced Rollover Crashes?

Toyota Motor Corp.-Rini Sherony
Virginia Tech-Luke Riexinger, Hampton Gabler
Published 2019-04-02 by SAE International in United States
Vehicle rollovers are one of the more severe crash modes in the US - accounting for 32% of all passenger vehicle occupant fatalities annually. One design enhancement to help prevent rollovers is Electronic Stability Control (ESC) which can reduce loss of control and thus has great promise to enhance vehicle safety. The objectives of this research were (1) to estimate the effectiveness of ESC in reducing the number of rollover crashes and (2) to identify cases in which ESC did not prevent the rollover to potentially advance additional ESC development.All passenger vehicles and light trucks and vans that experienced a rollover from 2006 to 2015 in the National Automotive Sampling System Crashworthiness Database System (NASS/CDS) were analyzed. Each rollover was assigned a crash scenario based on the crash type, pre-crash maneuver, and pre-crash events. The Insurance Institute for Highway Safety ESC availability database was matched to each NASS/CDS case vehicle by the vehicle make, model, and model year. ESC effectiveness was computed using the quasi-induced exposure method.From 2006-2015, control loss was a factor in 29.7%…
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Driver Behavior in Left Turn across Path from Opposite Direction Crash and near Crash Events from SHRP2 Naturalistic Driving

Crash Safety Research-Swaroop Dinakar, Jeffrey Muttart
Published 2019-04-02 by SAE International in United States
The turn-across-path from opposite-direction [LTAP-OD] crash type contributes to one of the major fatal crash types in young drivers. Drivers responses in police reportable and severe crashes and near crashes involving an LTAP-OD scenario were evaluated from query of the Second Strategic Highway Research Program [SHRP-2]. This research examined the responses of through drivers. 122 such events were analyzed to extract driver braking behavior, secondary tasks, age, and perception-response times. All measures of through driver variables were compared with respect to turning driver behavior. The study aimed to identify the trigger event for drivers to respond to the left turning vehicle. Time to contact was a significant factor which affected driver response times. Drivers responded significantly faster when subjected to shorter time to contact events compared to longer ones. Other short time to contact events included when the turning vehicle did not stop before entering the intersection, or when the turning vehicle was visible for a short duration. Driver factors such as age, gender or secondary task engagement did not significantly influence response times.
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Residual Injury Situation and Accident Characteristics of Severe Motorcycle Accidents

Hannover Medical School-Dietmar Otte
Published 2019-04-02 by SAE International in United States
The total number of persons severely and fatally injured in road traffic accidents has reduced considerably in recent decades. However, the number of motorcyclists involved in accidents has not reduced to the same extent, and some countries have even recorded an increase. The aim of this study is to analyse the circumstances of motorcycle accidents in Germany involving vehicles with a cubic capacity of over 125 cm3 with particular reference to severely or fatally injured riders. An analysis is to be made of the characteristics and patterns of injuries suffered by the most severely injured motorcyclists and proposals developed for injury prevention. The study included accident data from 464 motorcycle accidents collected in Hanover and Dresden between 2010 and 2015 by an academic research team in the course of the GIDAS project (German In-Depth Accident Study). This data represents a statistically representative sample from real accidents occurring in Germany. The analysis of the current injury situation shows that motorcyclists are often severely injured, i.e. suffered injuries of grade MAIS 3+ (so called serious injuries) in…
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