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Viewing 1 to 30 of 86
2014-08-12
Article
AC17 test reporting begins in 2015. Initially it "gifts" applicable CAFE A/C efficiency credits, but leads to mandatory use. Industry also looks to reduce A/C-induced EV range loss from solar loading using films, glass, pre-ventilation.
2014-04-24
Article
A recent EPA analysis shows that of the MY2014 offerings, 34% already meet 2016 GHG and CAFE targets.
2014-04-14
Article
Problem solving is about to get a lot more complex as the global automotive industry moves to make the connected vehicle as commonplace as portable digital devices.
2014-04-09
Article
The Chairman and CEO of AVL List GmbH sees engineering opportunities in teeth-jarring, rutted roadways.
2014-04-01
Article
All new vehicles under 10,000 lb will be required to have rearview camera technology under a final rule issued March 28 by NHTSA (U.S. National Highway Traffic Safety Administration). The rule applies to vehicles ranging from passenger cars to trucks and buses (any vehicle under 10,000 lb) built on or after May 1, 2018.
2013-11-25
Article
CAFE isn't a mistake with unintended consequences, EPA and NHTSA say, but rather a carefully crafted way to meet the Congressional mandate to maintain the current vehicle fleet's vehicle-size distribution, Scenaria President says in SEMA presentation.
2013-05-30
Article
The technology is not yet sufficiently developed to allow self-driving vehicles to be operated on public roads for purposes other than controlled testing, NHTSA (U.S. National Highway Traffic Safety Administration) said May 30 in issuing guidelines and recommendations to that effect.
2013-04-24
Article
NHTSA (U.S. National Highway Traffic Safety Administration) is recommending that in designing their vehicles, automakers disable manual text entry for text messaging and Internet browsing if the vehicle is not stopped and in park.
2013-04-17
Article
Debby Bezzina, Senior Program Manager for Safety Pilot Model Deployment at the University of Michigan Transportation Research Institute, talks about where the program stands today and where it goes after completion in August 2013.
2013-04-09
Article
Having last updated its New Car Assessment Program (NCAP), NHTSA (U.S. National Highway Traffic Safety Administration) in MY2011, and having witnessed what it terms "rapid deployment of vehicle safety technologies," the agency wants to bring the program up to date.
2013-04-08
Technical Paper
2013-01-0762
James Saunders, Daniel Parent
NHTSA has developed two different moving deformable barrier-to-vehicle test procedures to assess the vehicle and occupant response in narrow overlap motor vehicle crashes. An assessment of test repeatability is one of the requirements necessary to accept the test procedure as viable. Previous methodologies, coefficient of variation (CV) and similarity analysis were developed to assess the repeatability of vehicle and occupant response in motor vehicle crash tests for full frontal and 40% overlap tests procedures. These will be used for this assessment. Three repeat tests were performed in each test procedure, with all other factors held constant: vehicles of the same make, model, and model year; moving deformable barriers of the same mass, velocity, and barrier face properties; and the same occupant - a THOR 50th percentile adult male in the driver's seat. In general, for this one vehicle make and model the repeatability of both vehicle and occupant response metrics were good for both test modes.
2013-04-03
Article
New technologies will enable automakers to meet 2017-2025 CAFE standards, but the cost of compliance could be thousands of dollars per vehicle.
2013-03-04
Article
NHTSA (U.S. National Highway Traffic Safety Administration) is seeking input into a just-released report on the effectiveness of LEDs as used in taillights. The agency noted in the Feb. 28 Federal Register that the report "does not support a firm conclusion about whether LED stop lamps and LED CHMSL are more effective than incandescent lamps."
2012-12-10
Article
Although about 96% of today's passenger vehicles already are equipped with black boxes (formally called event data recorders, or EDRs), NHTSA (U.S. National Highway Traffic Safety Administration) is proposing to require their fitment to all new light passenger vehicles of less than 8500 lb.
2012-09-21
Article
After roughly a decade of research into dedicated short range communications (DSRC), U.S. government agencies are preparing to decide whether to mandate adoption.
2012-09-13
Article
The U.S. government, via several of its transportation-related agencies, is sponsoring the project, which it claims is the largest-ever road test of connected-vehicle crash-avoidance technologies.
2012-08-28
Article
EPA’s Jackson says support and cooperation of automakers, unions, and other stakeholders in development of the new regulations prove they are “achievable and cost-effective.”
2012-05-18
Article
NHTSA (U.S. National Highway Traffic Safety Administration) on May 16 proposed a rule to require that new large commercial truck tractors and buses be equipped with an electronic stability control (ESC) system.
2012-05-14
Article
For commercial truckers and fleet owners, communications between vehicles could improve both fuel economy and safety. While the benefits can be significant, regulators question whether the technology will be adopted if it’s not required.
2012-04-27
Article
The nation's top safety administrator peppered his keynote address to SAE 2012 World Congress attendees with thank-you sentiments to engineers for solving complex problems.
2012-04-25
Article
OEMs need to prepare their customers’ expectations for new fuel-efficiency technologies aimed at meeting the 2017-25 CAFE standards, stressed an expert panel of engineers at the SAE 2012 World Congress. And the attribute-based standards could adversely impact sales of the smaller vehicle segments, the experts noted.
2012-04-16
Technical Paper
2012-01-0577
James Saunders, Matthew Craig, Daniel Parent
In September 2009 the National Highway Traffic Safety Administration (NHTSA) published a report that investigated the incidence of fatalities to belted non-ejected occupants in frontal crashes involving late-model vehicles. The report concluded that after exceedingly severe crashes, the largest number of fatalities occurred in crashes involving poor structural engagement between the vehicle and its collision partner, present in crashes characterized as corner impacts, oblique crashes, impacts with narrow objects, and heavy vehicle underrides. By contrast, few if any of these 122 fatal crashes were full-frontal or offset-frontal impacts with good structural engagement, excepting crashes that were of extreme severity or the occupants that were exceptionally vulnerable. The intent of this research program is to develop a test protocol that replicates real-world injury potential in small overlap impacts (SOI) and oblique offset impacts (Oblique) in motor vehicle crashes. Previous work towards this goal has led to the development of a Research Moving Deformable Barrier-to-Vehicle (RMDBtV) test protocol, which is further evaluated in this paper.
2012-04-16
Technical Paper
2012-01-0569
Kyle A. Ott, John F. Wiechel, Dennis A. Guenther, Jason Stammen, Ann E. Mallory
Objectives. Examination of head injuries in the Pedestrian Crash Data Study (PCDS) indicates that many pedestrian head injuries are induced by a combination of head translation and rotation. The Simulated Injury Monitor (SIMon) is a computer algorithm that calculates both translational and rotational motion parameters relatable head injury. The objective of this study is to examine how effectively HIC and three SIMon correlates predict the presence of either their associated head injury or any serious head injury in pedestrian collisions. Methods. Ten reconstructions of actual pedestrian crashes documented by the PCDS were conducted using a combination of MADYMO simulations and experimental headform impacts. Linear accelerations of the head corresponding to a nine-accelerometer array were calculated within the MADYMO model's head simulation. Injury risk calculated by SIMon (relative motion damage measure RMDM, cumulative strain damage measure CSDM, dilatation damage measure DDM) and HIC were compared to the presence or absence of either their associated injury or any serious head injury in each case using receiver operating characteristic (ROC) analysis.
2012-04-16
Technical Paper
2012-01-0575
Dale E. Halloway, Frank Pintar, James Saunders, Aida Barsan-Anelli
The purpose of the study was to distinguish the role of vehicle structure in frontal impacts in published coded National Automotive Sampling System (NASS-CDS) data. The criteria used: Collision Deformation Classification (CDC) coding rules, crush profile locator data and the projected location of longitudinal structural members in models of vehicle class sizes used by NASS-CDS. Two classifiers were developed to augment the CDC system. The Coincidence classifier indicates the relationship between the quadrant of the clock face the crash vector originates in and the aspect of the end plane the center of damage is located. It has three values: Linear (12 o'clock impacts) Consistent and Variant ("oblique" Principal Directions of Force or PDOFs). The second classifier indicates the number of longitudinal members engaged: 0, 1 or 2. NASS-CDS data for sample years 2005 to 2009 was filtered for occupants involved in impacts with the highest ranked speed change assigned to the front-end plane.
2012-01-20
Article
Though supportive of the decision by NHTSA, the U.S. National Highway Traffic Safety Administration, to close its investigation related to cases of unintended acceleration in some Toyota models, an arm of the National Academies has issued a report describing as "troubling" NHTSA's inability to convincingly address public concerns about the safety of automotive electronics.
2012-01-06
Article
Structural reinforcements to better protect the battery pack in side impacts and improvements to the pack’s liquid cooling system are the “fix” that General Motors engineers have developed to prevent a real-world occurrence of a post-crash fire in the Chevrolet Volt produced during testing by the U.S. NHTSA (National Highway Traffic Safety Administration).
2011-11-16
Article
One may complain about whether the corporate average fuel economy (CAFE) proposal formally released by the U.S. government on Nov. 16 goes too far or not far enough, but no one will be able to complain that not enough time elapsed from when the proposal was made to when it went into effect.
2011-09-22
Article
A handful of government-sponsored tests for connected vehicles will begin next year, providing insight into technical issues and factors such as privacy that will play a major role in determining which projects will get a green light for development and deployment.
2011-08-11
Article
American businesses that operate heavy on-road vehicles will save an estimated $50 billion in fuel costs under fuel-efficiency and greenhouse gas emissions standards announced by NHTSA (National Highway Traffic Safety Administration) and the U.S.
2011-08-02
Article
U.S. President Barack Obama on July 29 announced an agreement with 13 major automakers to increase corporate average fuel economy (CAFE) to 54.5 mpg and 163 g/mi of CO2 by MY2025. The agreement covers the model years 2017 to 2025.
Viewing 1 to 30 of 86

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