Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians

This study analyzes the brake operation behavior of drivers when a pedestrian runs out onto a road with good visibility. For this purpose, 15 subjects were observed in a driving simulator. As the evaluation criteria, we adopted the TTC to avoid the collision to pedestrian in the front/back direction...

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Main Authors: Keisuke SUZUKI, Hiroaki YAMAGUCHI, Takaharu OGURI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2017-08-01
Series:Mechanical Engineering Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/mej/4/5/4_17-00215/_pdf/-char/en
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author Keisuke SUZUKI
Hiroaki YAMAGUCHI
Takaharu OGURI
author_facet Keisuke SUZUKI
Hiroaki YAMAGUCHI
Takaharu OGURI
author_sort Keisuke SUZUKI
collection DOAJ
description This study analyzes the brake operation behavior of drivers when a pedestrian runs out onto a road with good visibility. For this purpose, 15 subjects were observed in a driving simulator. As the evaluation criteria, we adopted the TTC to avoid the collision to pedestrian in the front/back direction at the start of braking and the spare distance between the pedestrian and the vehicle in the sideways direction at the start of braking. To determine the reliability of these test results, we also analyzed the initiation timing of a driver's braking operation in a real road environment using drive recorders and compared these results with those test results. Then, based on the results of this driving simulator test, we proposed the lowest 1% of the cumulative frequency of the driver's operation timings as the time of starting the brake operation in autonomous emergency braking. Finally, this proposed brake control timing's adequacy was validated in an experiment. The system's brake control did not interfere with the drivers' brake operation, confirming that driver overconfidence in the system was controlled.
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spelling doaj.art-ac68ce46487b4d6ebcb8a4aa68227a012022-12-21T19:27:36ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452017-08-014517-0021517-0021510.1299/mej.17-00215mejDesigning of brake timing of autonomous emergency braking system to avoid collision to pedestriansKeisuke SUZUKI0Hiroaki YAMAGUCHI1Takaharu OGURI2Kagawa UniversityKagawa UniversityDENSO CORPORATIONThis study analyzes the brake operation behavior of drivers when a pedestrian runs out onto a road with good visibility. For this purpose, 15 subjects were observed in a driving simulator. As the evaluation criteria, we adopted the TTC to avoid the collision to pedestrian in the front/back direction at the start of braking and the spare distance between the pedestrian and the vehicle in the sideways direction at the start of braking. To determine the reliability of these test results, we also analyzed the initiation timing of a driver's braking operation in a real road environment using drive recorders and compared these results with those test results. Then, based on the results of this driving simulator test, we proposed the lowest 1% of the cumulative frequency of the driver's operation timings as the time of starting the brake operation in autonomous emergency braking. Finally, this proposed brake control timing's adequacy was validated in an experiment. The system's brake control did not interfere with the drivers' brake operation, confirming that driver overconfidence in the system was controlled.https://www.jstage.jst.go.jp/article/mej/4/5/4_17-00215/_pdf/-char/endriving supportautonomous emergency braking system (aeb)driving simulatorbraking behavioroverconfidence
spellingShingle Keisuke SUZUKI
Hiroaki YAMAGUCHI
Takaharu OGURI
Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
Mechanical Engineering Journal
driving support
autonomous emergency braking system (aeb)
driving simulator
braking behavior
overconfidence
title Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
title_full Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
title_fullStr Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
title_full_unstemmed Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
title_short Designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
title_sort designing of brake timing of autonomous emergency braking system to avoid collision to pedestrians
topic driving support
autonomous emergency braking system (aeb)
driving simulator
braking behavior
overconfidence
url https://www.jstage.jst.go.jp/article/mej/4/5/4_17-00215/_pdf/-char/en
work_keys_str_mv AT keisukesuzuki designingofbraketimingofautonomousemergencybrakingsystemtoavoidcollisiontopedestrians
AT hiroakiyamaguchi designingofbraketimingofautonomousemergencybrakingsystemtoavoidcollisiontopedestrians
AT takaharuoguri designingofbraketimingofautonomousemergencybrakingsystemtoavoidcollisiontopedestrians