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Viewing 1 to 30 of 2842
2017-04-07 ...
  • April 7, 2017 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
Training / Education Classroom Seminars
Lighting Emitting Diode (LED), a new generation semiconductor light source often referred to as Solid-State Lighting (SSL), has been broadly adopted in illumination, display, visualization, and other areas due to its higher efficacy and longer life. LEDs, first introduced for automotive interior applications such as indicators, expanded to exterior applications including center high mounted stop lamps and other automotive signal lighting devices. Today, LED technologies are being used for night vision, occupancy detection, and many other automotive application areas.
2017-04-06
Event
Presentations of this session will address application and research on coatings for exterior body and plastics (including polycarbonate) as well as vehicle interiors and underbody/underhood. Focus will be on the 3-10 year timeframe.
2017-04-06
Event
Presentations of this session will address application and research on coatings for exterior body and plastics (including polycarbonate) as well as vehicle interiors and underbody/underhood. Focus will be on the 3-10 year timeframe.
2017-04-06 ...
  • April 6, 2017 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
Training / Education Classroom Seminars
It has not been commonly known that automotive exterior lights are safety devices and must comply with governmental regulations. Since the 1930s, the SAE Lighting Standards Committee has been actively working with the automotive industry OEMs, lamp makers, tier-two suppliers, and human factor experts to develop automotive lighting standards. These standards have been widely used or referenced by the U.S. federal or state governments in establishing and enforcing the lighting regulations.
2017-04-05
Event
These papers highlight the interaction of driver vision - which is itself characterized by complexity, flexibility, and high levels of performance—with ever more sophisticated vision technologies to support driver vision. In particular, LED technology continued to advance in the past year, leading to broader lighting applications. Topics covered include lighting design strategy, lighting thermal management, driver fields of view, and characteristics of camera/display systems.
2017-04-04
Event
Visual perception continues to be a critical aspect of overall driver performance. This session offers presentations highlighting new developments designed to provide better support for driver rearward vision, better understanding of how to measure light and its effects on drivers’ eyes, and better understanding of how drivers accomplish the visually difficult task of negotiating intersections.
2017-04-04
Event
Visual perception continues to be a critical aspect of overall driver performance. This session offers presentations highlighting new developments designed to provide better support for driver rearward vision, better understanding of how to measure light and its effects on drivers’ eyes, and better understanding of how drivers accomplish the visually difficult task of negotiating intersections.
2017-04-03 ...
  • April 3-4, 2017 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
Training / Education Classroom Seminars
Since the invention of the automobile, lighting has been an important subsystem on all ground vehicles. Automotive lighting is vital to passenger safety, comfort and vehicle styling. The technology used in automotive lighting has rapidly expanded to make the lighting more value added, safer and pleasing to customers. This seminar provides broad information about automotive lighting systems with emphasis on lighting functions, effectiveness, and technologies. The intent is to assist attendees to gain sufficient knowledge about automotive lighting and its importance in overall vehicle design and development.
2017-03-28
Technical Paper
2017-01-1363
James F. Krier, Paul Weindorf
Modern automotive cockpit design trends have increased the number of displays and the locations and manner in how they are packaged. One theme in particular is the packaging of the displays in novel locations that may be marginal in terms of dynamic stability during road load vibrations. Examples of this include mirror or deployable displays that adjust their position in the vehicle. The image of the display may be partially or fully blurred during vibration events which can produce a poor HMI experience. This paper will present the results of a HMI study that that evaluated the readability of different sizes and contrast ratios of TFT color display graphics via jury evaluation during varying vibration acceleration and frequency levels in a controlled lab environment. The result of this study was identification of minimum natural frequencies and maximum acceleration levels for the display mounting structure as a function of display graphics size and contrast ratios.
2017-03-28
Technical Paper
2017-01-1366
Jeffrey Muttart, Swaroop Dinakar, Jeffrey Suway, Michael Kuzel, Timothy Maloney, Wayne Biever, Toby Terpstra, Tilo Voitel, David Cavanaugh, T.J. Harms
More than half all pedestrian fatalities occur at night. To address this problem, in the 1950s through 1970s Blackwell conducted considerable research that showed that a way to account for the limitations related to drivers’ expectancies at night would be to limit a driver’s time to view the forward roadway. The reduced information during the limited exposure time became a surrogate for the limited information available to on-road drivers at night. With the release of the SHRP-2 naturalistic database, we are able to see how drivers responded to in-road obstacles at night such as animals, bicyclists, pedestrians, and tree limbs. Using the naturalistic response data as a baseline, safe closed road recognition methodology was developed. The closed road study built upon the early nighttime recognition work by Blackwell, the observers were allowed to view the forward roadway for 1 or ¼ second.
2017-03-28
Technical Paper
2017-01-0508
Gabor Kiss, Yuya Ando, Martin Schifko
After the e-coating the paint on the surface is like a sponge and carry liquid which slowly drains off. The retain water carries about 5-10 liter for 100mm² BIW surface area. When the retain water drains off, residual liquids may areas at areas nobody is expecting. These liquids are potential causers in the oven either to destroy the corrosion protection mainly caused by boiling or may lead to bake drips. The density of the residual liquid is changing during the heating process in the oven. Depending on the evaporation of residual puddles and density change the total volume may increase although the weight is getting less. This is the critical situation which may lead to bake drips. In this talk we would outline our technology which allows to predict retain water behavior and the arising of bake drips successfully
2017-03-28
Technical Paper
2017-01-1357
Stefan G. Groetsch, Rainer Huber, Alexander Guenther, Ralf Staub
Osrams new high luminance chip technology (200 Mcd/m²)also offers new opportunities also in new SMT Concepts. Two of this new high performance SMT devices with 4 and 2 chips per unit enable a very compact headlamp prototype design. It is also combined with light guides for daytime running light and turn indicator. Emphasis in this paper lies also on the thermal design & solution ranging from selected PCB technology towards tuned air flow management.
2017-03-28
Technical Paper
2017-01-0505
Aditi Chavannavar
Polyurethane dispersions (PUDs) have seen rapid growth in recent years as alternatives to their solvent based analogs. They offer the advantages of enabling low VOC formulations while providing superior appearance and mechanical properties. Polyurethane-acrylic hybrids combine the advantages of a polyurethane dispersion with the benefits of an acrylic emulsion. This synergistic combination offers properties such as good hardness development and chemical resistance in addition to enhanced mechanical properties. In this paper, we discuss new PUD-acrylic hybrids that are NMP and solvent free, have a pendulum hardness of 100 oscillations compared to a standard acrylic emulsion that has 80; and offer excellent scratch and abrasion resistance equivalent to that of an acrylic system. In addition to these, the new polyurethane dispersions provide good haptic qualities and have excellent adhesion to plastic substrates such as ABS, PC, PMMA and PVC.
2017-03-28
Technical Paper
2017-01-1367
Jeffrey Aaron Suway, Jeffrey Muttart
Evaluating luminance values of a visual scene is of broad interest to accident reconstructionists, human factors professionals, and lighting experts. Currently, a common way to determine the actual luminance of an object is to locate the object on the subject roadway, at a substantially similar position, orientation and illuminance level and then measure the object with a luminance meter. This process can be extremely time consuming and could possibly require the roadway to be closed for safety purposes. Alternatively, the luminance can be calculated by measuring the reflectance of the subject surface and measuring the illuminance incident to the surface. After measuring the reflectance, it can then be used with any known illuminance to calculate the luminance of the object. This allows for an equivalently accurate measurement of luminance that is easier and quicker to make and could result in safer scene and vehicle inspections.
2017-03-28
Technical Paper
2017-01-1365
Michael Larsen
Regulation and certification requirements generally fall into 2 categories: self-certification and type approval. Self-certification requirements, currently used in the United States under Federal Motor Vehicle Safety Standards (FMVSS) regulations, must be objective and measurable with clear pass / fail criteria. On the other hand, Type Approval requirements, currently used in Europe under United Nations Economic Commission for Europe (UNECE) regulations, can be more general relying on the mandated 3rd party certification agency to appropriately interpret and apply the requirements based on the design and configuration of a vehicle. The use of a 3rd party is especially helpful when applying regulatory requirements for complex vehicle systems that operate dynamically, changing based on inputs from the surrounding environment.
2017-03-28
Technical Paper
2017-01-1362
James Marr, William Neale, tomas owens, Steven Beier
In 2016, Virtual Reality equipment became both affordable and available to the public market in the form of the Oculus (tm) and Vive (tm). This equipment includes a headset and earphone system that create a fully immersive environment for the user, and provides added abilities over traditional visualization tools like 2-D animation. These abilities include choosing where one looks, and for how long, and a spatial and depth perception, and auditory experience that traditional 2 D visualization cannot achieve without the headgear. This paper presents an evaluation of the use of this equipment in several driving and pedestrian simulation environments for both daytime and nighttime scenarios. As part of the study, the VR environment was compared to photographs, videos, and 2D visualizations of each of the scenarios to evaluate the level of realism achieved by the VR equipment. This was done through feedback from participants and through quantitative comparison of imagery.
2017-03-28
Technical Paper
2017-01-1368
Jeffrey Aaron Suway, Steven Suway
Mapping the luminance values of a visual scene is of broad interest to accident reconstructionists, human factors professionals, and lighting experts. Such mappings are useful for a variety of purposes, including determining the effectiveness and appropriateness of lighting installations, and performing visibility analyses for accident case studies. One of the most common methods for mapping luminance is to use a spot type luminance meter. This requires individual measurements of all objects of interest and can be extremely time consuming. Luminance cameras can also be used to create a luminance map. While luminance cameras will map a scene’s luminance values more quickly than a spot luminance meter, commercially available luminance cameras typically require long capture times during low illuminance (up to 30 seconds). Previous work has shown that pixel intensity captured by consumer-grade digital still cameras can be calibrated to measure luminance.
2017-03-28
Technical Paper
2017-01-1306
Mike Ulizio, DeWitt Lampman, Mukesh Rustagi, Jason Skeen, Chester Walawender
Automotive manufacturers are requiring lightweight materials, including glazing materials to improve vehicle fuel economy mandates. Since windshields are one of the largest glazing surface areas, reducing the thickness of the glass in its construction can significantly provide weight savings opportunities. Automotive glazing design considerations must include overall glass strength, rigidity, acoustical and solar performance, which are affected by changes of glass thicknesses. This paper will evaluate those design considerations in the lightweighting of windshield glazings. One important design consideration for the windshield position is the impact of debris from the environment. Lightweighting of glazings in this vehicle position affects the way the construction typically reacts to stone impacts. Use of asymmetry in glass inner versus outer plies in laminated constructions can have a noticeable effect on the part’s impact performance and surface damage creation.
2017-03-28
Technical Paper
2017-01-1538
Jiaye Gan, Longxian Li, Gecheng Zha, Craig Czlapinski
This paper conducts numerical simulation and wind tunnel testing to study the passive jet boat tail(JBT) drag reduction flow control for a heavy duty truck rear view mirror. The JBT passive flow control technique is to introduce a flow jet by opening an inlet in the front of a bluff body, accelerate the jet via a converging duct and eject the jet at an angle toward the center of the base surface. The high speed jet flow entrains the free stream flow to energize the base flow, increase the base pressure, reduces the wake size, and thus reduce the drag. A baseline heavy duty truck rear view mirror is used as reference. The mirror is then redesigned to include the JBT feature without violating any of the variable mirror position geometric constraints and internal control system volume requirement. The wind tunnel testing was conducted at various flow speed and yaw angles.
2017-03-28
Technical Paper
2017-01-1369
Abtine Tavassoli, Sam Perlmutter, Dung Bui, James Todd, Laurene Milan, David Krauss
Vision plays a key role in the safe and proper operation of vehicles. To safely navigate, drivers constantly search their environments, which includes attending to the outside environment as well as the inside of the driver compartment. For example, a driver may monitor various instruments and road signage to ensure that they are traveling at an appropriate speed. Although there has been work done on naturalistic driver gaze behavior, little is known about what information drivers glean while driving. Here, we present a methodology that has been used to build a database that seeks to provide a framework to supply answers to various ongoing questions regarding gaze and driver behavior. We discuss the simultaneous recording of eye-tracking, head rotation kinematics, and vehicle dynamics during naturalistic driving in order to examine driver behavior with a particular focus on how this correlates with gaze behavior.
2017-03-28
Technical Paper
2017-01-1364
Kashif Ali, Vikas Kumar, Virat Kalra
Vehicle occupant packaging and interior and exterior body design determine the overall visibility that the driver of the vehicle has. Visibility is also dependent on technological features inside and outside the passenger cell like proximity sensors and cameras etc. The focus of this research is to find and analyze the visibility percentages, blind spot angles and blind spot areas using statistical data both individually and as vehicle class put together in order to justify the need for standardization of basic visibility enhancing aids. This study has an added significance considering the Indian road transportation statistics. On an average, 16 people die every hour due to road accidents in India. The aim is to focus on cases that affect visibility in low speed driving, coasting and reversing that causes loss to public and private property.
2017-03-28
Technical Paper
2017-01-1370
Hiroyuki Hara, Masaaki Kawauchi, Masayuki Katayama, Noriyuki Iwamori
In recent years, a camera monitor system which displays car-mounted camera pictures to in-vehicle displays is being developed. For a future vehicle cockpit, a field of view (FOV) support system with plural displays is assumed, which includes not only a meter and a center display, but also an HUD and the camera monitor system. As a consequence, an area occupied with displays in a driver’s FOV increases. In this situation, coexistence of “easiness in seeing” to tell a driver about dangers early and “annoying reduction” to avoid the driver’s perception drops is needed for in-vehicle displays. In order to meet this requirement, questionnaires (psychological indicator) have been conventionally used. However, here are two difficulties. One is that two items (“easiness in seeing” and “annoying”) are contrary, and the other is that the relation between a result of questionnaires and driver’s security is uncertain.
2017-03-28
Technical Paper
2017-01-1356
Rainer Neumann
In the last years we recognize a big amount of innovative solutions in the field of automotive lighting and especially in front lighting systems. The major target to improve the light performance and to make driving at night safe is most important. The measure to for the performance rating and the ability to compare different systems with a technology neutral process seems to be quite difficult. The legislation is looking for a simplification with clearly defined parameters for the future. Experimental test series recently published causing a lot of discussions as the sensitivity of the aiming of the headlamps can cause completely different performance test results. The paper will report on a study with various production vehicles, all in the same way initially aimed and prepared for all type of technologies.
2017-03-28
Technical Paper
2017-01-1360
John D. Bullough
Nighttime driving cannot be accomplished without vehicle headlighting. A growing body of evidence demonstrates the role of lighting on visual performance and in turn on nightttime driving safety in terms of crashes. Indirect impacts of lighting via comfort or other factors are less well understood, however. A two-part field study using real-world drivers of an instrumented vehicle was conducted to assess the potential role of oncoming headlight glare as a factor in driving behaviors that might be related to increased crash risks. In the first part of the study, drivers' behaviors when navigating through roadway intersections having different levels of crash risk were recorded in order to identify responses that were correlated with the risk level. In the second part, drivers were exposed to different levels of glare from oncoming headlights; several of the same risk-related behaviors identified in the first part of the study were exhibited.
2017-03-28
Technical Paper
2017-01-0363
Karthik Ramaswamy, Vinay L. Virupaksha, Jeanne Polan, Biswajit Tripathy
EPP foams are most commonly used in automotive applications for pedestrian protection and to meet low speed bumper regulatory requirements. In today’s automotive world the design of vehicles are predominantly driven by CAE. This makes it necessary to have validated material model for EPP foams in order to simulate and predict performance under various loading conditions. Since most of the automotive OEMs depend on local material suppliers for their global vehicle applications it is necessary to understand the variation in mechanical properties of the EPP foams and their effect on performance predictions. In this paper, EPP foams from three suppliers across global regions are characterized to study the inter-supplier variation in mechanical properties. In order to understand the effect of inter-supplier variation on vehicle performance, LSDYNA rate dependent material model is developed and validated for low speed and pedestrian protection load cases.
2017-03-28
Technical Paper
2017-01-1417
Enrique Bonugli, Richard Watson, Mark Freund, Jeffrey Wirth
This paper reports on additional testing conducted using the test device described by Bonugli et al. (2014-01-1991). The method utilized quasi-static loading of bumper systems and other vehicle components to measure their force-deflection properties. Corridors on the force-deflection plots, for various vehicle combinations, were determined to define the system stiffness of the combined vehicle systems. Loading path and peak force measurements can then be used to evaluate the impact severity for low speed collisions in terms of delta-v and acceleration. The additional tests refine the stiffness corridors, previously published, which cover a wide range of vehicle types and impact configurations. The analysis of the collision models the compression phase of a low speed collision as a spring, the spring characteristics defined by the force-deflection corridors. This is followed by a linear rebound phase based on published restitution values.
Viewing 1 to 30 of 2842

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