Browsing by Subject "active safety systems"

Now showing 1 - 4 of 4
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    Pedestrian/Bicyclist Limb Motion Analysis from 110-Car TASI Video Data for Autonomous Emergency Braking Testing Surrogate Development
    (SAE, 2016-04) Sherony, Rini; Tian, Renran; Chien, Stanley; Fu, Li; Chen, Yaobin; Takahashi, Hiroyuki; Department of Engineering Technology, School of Engineering and Technology
    Many vehicles are currently equipped with active safety systems that can detect vulnerable road users like pedestrians and bicyclists, to mitigate associated conflicts with vehicles. With the advancements in technologies and algorithms, detailed motions of these targets, especially the limb motions, are being considered for improving the efficiency and reliability of object detection. Thus, it becomes important to understand these limb motions to support the design and evaluation of many vehicular safety systems. However in current literature, there is no agreement being reached on whether or not and how often these limbs move, especially at the most critical moments for potential crashes. In this study, a total of 832 pedestrian walking or cyclist biking cases were randomly selected from one large-scale naturalistic driving database containing 480,000 video segments with a total size of 94TB, and then the 832 video clips were analyzed focusing on their limb motions. We modeled the pedestrian/bicyclist limb motions in four layers: (1) the percentages of pedestrians and bicyclists who have limb motions when crossing the road; (2) the averaged action frequency and the corresponding distributions on when there are limb motions; (3) comparisons of the limb motion behavior between crossing and non-crossing cases; and (4) the effects of seasons on the limb motions when the pedestrians/bicyclists are crossing the road. The results of this study can provide empirical foundations supporting surrogate development, benefit analysis, and standardized testing of vehicular pedestrian/bicyclist detection and crash mitigation systems.
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    Performance Measurement of Vehicle Crash Imminent Braking Systems
    (Office of the Vice Chancellor for Research, 2012-04-13) Chien, Stanley; Li, Lingxi; Chen, Yaobin
    As active safety systems have been introduced to passenger vehicles, there is an immediate need to develop a standardized testing protocol and scoring mechanism which enables an objective comparison between the performance of active safety systems implemented across various vehicle platforms. This project proposes a methodology for the establishment of such standards to evaluate and compare the performance of Crash Imminent Braking (CIB) systems. The proposed scoring mechanism is implemented based on track testing data in the evaluation of a 2011 model year passenger vehicle equipped with a CIB system.
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    Transportation Active Safety Institute
    (Office of the Vice Chancellor for Research, 2010-04-09) Ainslie, Paul; Chen, Yaobin; Justiss, Michael; Koskie, Sarah; O’Connor, Sean
    Since its founding in February 2006, the mission of the Transportation Active Safety Institute (TASI) has been to advance the use of active safety systems to reduce vehicle crashes and save lives. TASI was one of 10 centers awarded IUPUI Signature Center funding in January, 2008. With core faculty drawn from ten departments representing eight schools, the Transportation Active Safety Institute (TASI) is a university-wide interdisciplinary center for advanced automotive-safety research and development on the IUPUI campus. Partnership with industry, government, and non-profit agencies ensures that university research activities complement existing technologies and address existing and future needs. TASI aims to provide a neutral forum for pre-competitive discussion and development of standards and test methodologies for establishing objective benefits of active-safety systems. TASI has established a driving simulator laboratory for research into driver behavior and for testing active-safety system performance. The state-of-the-art DriveSafety DS-600c Driving Simulator is providing a flexible and realistic driving environment for industry, government, and internally sponsored research. This reconfigurable platform allows TASI to test various sensors and driver interfaces, in order to determine effective and convenient solutions to challenges in enhancing safety. TASI held its third workshop, the International Workshop on Research in Active Safety Technology, August 10-11, 2009, in Indianapolis and is currently planning an international workshop on human factors for August 2010. TASI has established an active dialog with other vehicle safety centers around the world through our Global Academic Network for Active Safety.
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    Transportation Active Safety Institute
    (Office of the Vice Chancellor for Research, 2011-04-08) Chen, Yaobin; Justiss, Michael; Koskie, Sarah; O’Connor, Sean
    Since its founding in February 2006, the mission of the Transportation Active Safety Institute (TASI) has been to advance the use of active safety systems to reduce vehicle crashes and save lives. TASI was one of 10 centers awarded IUPUI Signature Center funding (second round) in January, 2008. With core faculty drawn from ten departments representing eight schools at IUPUI, IUB and PUWL, the Transportation Active Safety Institute (TASI) is an interdisciplinary center for advanced transportation safety research and development on the IUPUI campus. Partnership with industry, government, and non-profit agencies ensures that university research activities complement existing technologies and address existing and future needs. TASI aims to provide a neutral forum for pre-competitive discussion and development of standards and test methodologies for establishing objective benefits of active-safety systems. TASI has established a driving simulator laboratory for research into driver behavior and for testing active safety system performance. The state-of-the-art DriveSafety DS-600c Driving Simulator is providing a flexible and realistic driving environment for industry, government, and internally sponsored research. This reconfigurable platform allows TASI to test various sensors and driver interfaces, in order to determine effective and convenient solutions to challenges in enhancing safety. Faculty members, research staff and graduate students have been working on several funded research projects such as human factors for semi-autonomous driving systems, intelligent human vehicle interfaces, real vehicle testing for crash-imminent braking system (autonomous braking system), distracted and impaired driving assessment, teen and older driver safety research, dealing with uncertainty in autonomous braking system, etc. TASI has also established an active dialog with other vehicle safety centers around the world through our “Global Academic Network for Active Safety.” Currently, global academic partners include Center for Automotive Research at the Ohio State University, National Advanced Driving Simulator at University of Iowa, University of Wisconsin, Tsinghua University in China, and Chalmers University of Technology in Sweden.