Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash
Abstract Autonomous driving technology has led to an increasing preference for rearward seating postures. However, current restraint systems exhibit significant shortcomings in protecting reclined occupants. In this paper, based on the existing restraint system components, various restraint strategi...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-86681-w |
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| author | Daowen Zhang Jixiang Yang Yi Lei Junlian Yan Lei Xu |
| author_facet | Daowen Zhang Jixiang Yang Yi Lei Junlian Yan Lei Xu |
| author_sort | Daowen Zhang |
| collection | DOAJ |
| description | Abstract Autonomous driving technology has led to an increasing preference for rearward seating postures. However, current restraint systems exhibit significant shortcomings in protecting reclined occupants. In this paper, based on the existing restraint system components, various restraint strategies were configured to enhance the protection for reclined occupants. Firstly, this research developed a model of the driver-side restraint system and validated its accuracy; secondly, it analyzed the kinematic response and damage of the occupants with the protection of the conventional restraint system; and then, based on the characteristics of the occupant’s kinematic response, it put forward three kinds of restraint strategies. The results indicated that incorporating larger airbags and additional knee bolsters could significantly enhance the protective effectiveness of the restraint system. This strategy achieved reduction of 18.9% in HIC15ms, 2.6% in maximum stress on the cervical spine, 17% in maximum chest compression, 4% in maximum rib strain, and 21% in axial force on the legs. The research findings offer valuable insights for the future design of protection systems for reclined occupants. |
| format | Article |
| id | doaj-art-7b52429efef74036baf94bfab5824ed0 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-7b52429efef74036baf94bfab5824ed02025-01-26T12:28:49ZengNature PortfolioScientific Reports2045-23222025-01-0115111810.1038/s41598-025-86681-wResearch on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crashDaowen Zhang0Jixiang Yang1Yi Lei2Junlian Yan3Lei Xu4School of Automobile and Transportation, Xihua UniversitySchool of Automobile and Transportation, Xihua UniversitySchool of Automobile and Transportation, Xihua UniversitySchool of Automobile and Transportation, Xihua UniversitySchool of Automobile and Transportation, Xihua UniversityAbstract Autonomous driving technology has led to an increasing preference for rearward seating postures. However, current restraint systems exhibit significant shortcomings in protecting reclined occupants. In this paper, based on the existing restraint system components, various restraint strategies were configured to enhance the protection for reclined occupants. Firstly, this research developed a model of the driver-side restraint system and validated its accuracy; secondly, it analyzed the kinematic response and damage of the occupants with the protection of the conventional restraint system; and then, based on the characteristics of the occupant’s kinematic response, it put forward three kinds of restraint strategies. The results indicated that incorporating larger airbags and additional knee bolsters could significantly enhance the protective effectiveness of the restraint system. This strategy achieved reduction of 18.9% in HIC15ms, 2.6% in maximum stress on the cervical spine, 17% in maximum chest compression, 4% in maximum rib strain, and 21% in axial force on the legs. The research findings offer valuable insights for the future design of protection systems for reclined occupants.https://doi.org/10.1038/s41598-025-86681-wReclined occupantsRestraint strategiesFE models |
| spellingShingle | Daowen Zhang Jixiang Yang Yi Lei Junlian Yan Lei Xu Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash Scientific Reports Reclined occupants Restraint strategies FE models |
| title | Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash |
| title_full | Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash |
| title_fullStr | Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash |
| title_full_unstemmed | Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash |
| title_short | Research on restraint strategies for rearward-reclined occupants in a frontal rigid barrier crash |
| title_sort | research on restraint strategies for rearward reclined occupants in a frontal rigid barrier crash |
| topic | Reclined occupants Restraint strategies FE models |
| url | https://doi.org/10.1038/s41598-025-86681-w |
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