Development of a test target for AEB systems:​ development process of a device to test AEB systems for consumer tests

Sandner, Volker

Affiliations

¹ADAC, Germany

Abstract

Rear-end collisions are one of the most frequent crashes in Europe. Common causes include momentary inattention, inadequate speed or inadequate distance. Rear-end impacts are among the most common types of road accidents involving injury e.g. Germany with an approx. 15% share in the total number of accidents involving injuries. Accident data shows that the rear end collisions with 65% and more overlap is most common. To test the effectiveness of advanced emergency braking systems and show up their performance to the consumer, a new test setup and assessment has to be developed.

Based on the data of different accident research programs the most common rear end accidents are in a right angular with an overlap of more than 2/3 of the vehicle width. Impact scenarios could fixed to three situations, collision with stand still objects, with stopping objects and with objects of a lower driving speed. Impact speed up to 50kph and more could be seen in the accident data analyses.

Taking into account the findings of the accident research, a test equipment needed to be developed to allow to test all kind of AEB systems in a longitudinal situation, simulating driving, slowing down and stationary condition. On the other hand a system has to be designed to show the consumer the effectiveness of different systems and therefore a target which must be able to strike has to be developed. A balloon car was the best solution for these requirements. In a fist stage the balloon target needed to be developed in a way that nearly all AEB systems could detect it to assess different systems and show the consumer the performance of this new technology. In a second phase the target needed to be improved in a more realistic way according a vehicle rear end, which would make it less easier to detect, but still taking into account the different information of the variable sensors such as radar, lidar, camera or PMD. In addition to the test target also a propulsion system is needed, which should not be recognized by the test vehicle, but allowing testing all the scenarios mentioned before. A ladder frame based system was designed which could be town by a vehicle in front of the target, while the target was place on a movable platform on this ladder frame. Stationary impacts as well as decelerating scenarios up to 6m/s2 must be realized with this device.

Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/esv/esv23/23ESV-000406.pdf

Cited Works (1)

Year	Entry
2009	Georgi A, Zimmermann M, Lich T, Blank L, Kickler N, Marchthaler R. New approach of accident benefit analysis for rear end collision avoidance and mitigation systems. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.

Cited By (5)

Year	Entry
2013	Schram R, Williams A, van Ratingen M; Euro NCAP ISA Working Group. Implementation of autonomous emergency braking (AEB), the next step in Euro NCAP’s safety assessment. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2015	Park Y, Kwon J, Park K, Jeong J. Unmanned target vehicle for active safety evaluation in cut-in test scenarios. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2015	Jacobson J, Eriksson H, Janevik P, Andersson H. How is AstaZero designed and equipped for active safety testing? In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2016	van Ratingen MR. Saving lives with safer cars: the past, present and future of consumer safety ratings. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.ii-xvii.
2016	Park Y, Kim S, Park K, Jeong JI. Development of robot vehicle for active safety evaluation in cut‐in scenarios. In: Proceedings of the 2016 International IRCOBI Asia Conference on the Biomechanics of Injury. May 16-18, 2016; Seoul, South Korea.85-86.