This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Bumper Airbag Design and Experiment for Pedestrian Protection
Technical Paper
2022-01-0852
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Researches on pedestrian protection have become a very important theme in automotive industry. Design for vehicle front-bumper system has proven rather essential and been extensively used to improve the vehicle performance of pedestrian protection. However, there are some limitations in the design of vehicle front-bumper system to meet a multiple-pedestrian impact conditions at the same time. In order to improve the vehicle performance of lower extremity and pelvis protection for pedestrian, a new type of front bumper airbag was developed. Firstly, based on European New Car Assessment Programme (Euro-NCAP), the Flexible Pedestrian Legform Impactor (Flex-PLI) to vehicle and Upper Pedestrian Legform Impactor (U-PLI) to vehicle impact tests are carried out to evaluate the pedestrian protection performance of the initial structure. Secondly, the structural design of the bumper airbag is carried out, including the layout of the bumper airbag, the shape of the bumper airbag and the parameter design of the bumper airbag. Finally, the performance of bumper airbag is tested and verified. The test results show that the new bumper airbag can significantly reduce the injuries of lower extremity and pelvis of pedestrian, which provides a reference for the development of similar front bumper system in the future.
Recommended Content
Authors
- He Zhu - Geely Automotive Research Institute
- Guorong Wang - Geely Automotive Research Institute
- Xiaojiang Lv - Hunan University
- Shuaishuai Hu - Geely Automobile Research Institute
- Heping Yang - Geely Automobile Research Institute
- Yun Liang - Jinzhou Jinheng Automotive Safety System
- Pengxiang Wang - Geely Automobile Research Institute
Topic
Citation
Zhu, H., Wang, G., Lv, X., Hu, S. et al., "Bumper Airbag Design and Experiment for Pedestrian Protection," SAE Technical Paper 2022-01-0852, 2022, https://doi.org/10.4271/2022-01-0852.Also In
References
- Arregui-Dalmases , C. , Lopez-Valdes , F.J. , and Segui-Gomez , M. Pedestrian Injuries in Eight European Countries: An Analysis of Hospital Discharge Data Accident Analysis & Prevention 42 4 2010 1164 1171 https://doi.org/10.1016/j.aap.2010.01.005
- Fredriksson , R. , Rosén , E. , and Kullgren , A. Priorities of Pedestrian Protection—A Real-Life Study of Severe Injuries and Car Sources Accident Analysis & Prevention 42 6 2010 1672 1681 https://doi.org/10.1016/j.aap.2010.04.006
- Garcia-Bedoya , O. , Hirota , S. , and Ferreira , J.V. Control System Design for an Automatic Emergency Braking System in a Sedan Vehicle 2nd Latin American Conference on Intelligent Transportation Systems, ITS LATAM 2019 March 19, 2019-March 20, 2019 Bogota, Colombia
- Huang , J. , Xia , Y. , Nie , B.B. , and Zhou , Q. Estimation of Energy-Absorption Space for Pedestrian Leg Protection of Car Front-End structures International Journal of Vehicle Design 60 1-2 2012 20 38 10.1504/ijvd.2012.049156
- Isshiki , T. , Antona-Makoshi , J. , Konosu , A. , and Takahashi , Y. Optimal Specifications for the Advanced Pedestrian Legform Impactor Stapp Car Crash Journal 61 2017 373 395
- Kristalniy , S.R. , Popov , N.V. , Gaevskiy , V.V. , Andreev , A.N. , and Toporkov , M.A. Experience of Using a Moving Pedestrian Model in Tests of Automatic Emergency Braking System 2021 Systems of Signals Generating and Processing in the Field of on Board Communications, SOSG 2021 March 16, 2021-March 18, 2021 Moscow, Russia
- Lei , F. , Lv , X. , Fang , J. , Li , Q. et al. Nondeterministic Multi-Objective and Multi-Case Discrete Optimization of Functionally-Graded Front-Bumper Structures for Pedestrian Protection Thin-Walled Structures 167 2021 106921 https://doi.org/10.1016/j.tws.2020.106921
- Lei , F. , Lv , X. , Fang , J. , Pang , T. et al. Injury Biomechanics-Based Nondeterministic Optimization of Front-End Structures for Safety in Pedestrian-Vehicle Impact Thin-Walled Structures 167 2021 108087 https://doi.org/10.1016/j.tws.2021.108087
- Li , G. , Wang , F. , Otte , D. , Cai , Z. et al. Have Pedestrian Subsystem Tests Improved Passenger Car Front Shape? Accident Analysis and Prevention 115 2018 143 150 10.1016/j.aap.2018.03.014
- Li , G.B. , Ma , H.X. , Guan , T.Q. , and Gao , G.Q. Predicting Safer Vehicle Font-End Shapes for Pedestrian Lower Limb Protection via a Numerical Optimization Framework International Journal of Automotive Technology 21 3 2020 749 756 10.1007/s12239-020-0073-0
- Lim , J.-H. , Park , J.-S. , Yun , Y.-W. , Jeong , S.-B. et al. Design of an Airbag System of a Mid-Sized Automobile for Pedestrian Protection Proceedings of the Institution of Mechanical Engineers Part D-Journal of Automobile Engineering 229 5 2015 656 669 10.1177/0954407014551186
- Lopez , A. , Sherony , R. , Chien , S. , Li , L. , Qiang , Y. , and Chen , Y. Analysis of the Braking Behaviour in Pedestrian Automatic Emergency Braking 18th IEEE International Conference on Intelligent Transportation Systems, ITSC 2015 September 15, 2015-September 18, 2015 Avenida Principe de Asturias, Gran Canaria, Spain
- Lu , Y. , Shen , J. , Wang , C. , Lu , H. et al. Studying on the Design and Simulation of Collision Protection System Between Vehicle and Pedestrian International Journal of Distributed Sensor Networks 16 1 2020 10.1177/1550147719900109
- Mo , F. , Zhao , S. , Yu , C. , Xiao , Z. et al. Design of a Conceptual Bumper Energy Absorber Coupling Pedestrian Safety and Low-Speed Impact Requirements Applied Bionics and Biomechanics 2018 2018 10.1155/2018/9293454
- Nie , B. , Li , Q. , Gan , S. , Xing , B. et al. Safety Envelope of Pedestrians upon Motor Vehicle Conflicts Identified via Active Avoidance Behaviour Scientific Reports 11 1 2021 10.1038/s41598-021-82331-z
- Nie , B.B. and Zhou , Q. Can New Passenger Cars Reduce Pedestrian Lower Extremity Injury? A Review of Geometrical Changes of Front-End Design before and after Regulatory Efforts Traffic Injury Prevention 17 7 2016 712 719 10.1080/15389588.2016.1143096
- Ramli , F.R. and Yamazaki , K. Optimal Design of HGV Front Structure for Pedestrian Safety Journal of Advanced Mechanical Design Systems and Manufacturing 6 4 2012 541 557 10.1299/jamdsm.6.541
- Stockle , C. , Utschick , W. , Herrmann , S. , and Dirndorfer , T. Robust Design of an Automatic Emergency Braking System Considering Sensor Measurement Errors 21st IEEE International Conference on Intelligent Transportation Systems, ITSC 2018 November 4, 2018-November 7, 2018 Maui, HI, United States
- Stockle , C. , Utschick , W. , Herrmann , S. , and Dirndorfer , T. Robust Function and Sensor Design Considering Sensor Measurement Errors Applied to Automatic Emergency Braking 30th IEEE Intelligent Vehicles Symposium, IV 2019 June 9, 2019-June 12, 2019 Paris, France
- Tang , J.S. , Zhou , Q. , Nie , B.B. , and Hu , J.W. Obesity Effects on Pedestrian Lower Extremity Injuries in Vehicle-to-Pedestrian Impacts: A Numerical Investigation Using Human Body Models Traffic Injury Prevention 21 8 2020 569 574 10.1080/15389588.2020.1821195
- WHO 2018
- Yang , W. , Zhang , X. , Lei , Q. , and Cheng , X. Research on Longitudinal Active Collision Avoidance of Autonomous Emergency Braking Pedestrian System (AEB-P) Sensors (Switzerland) 19 21 2019 10.3390/s19214671
- Zhou , G. , Zhao , W. , Li , Q. , Shen , W. et al. Multi-Objective Robust Design Optimization of a Novel NPR Energy Absorption Structure for Vehicles Front Ends to Enhance Pedestrian Lower Leg Protection Structural and Multidisciplinary Optimization 56 5 2017 1215 1224 10.1007/s00158-017-1754-9