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Study on Occupant Injuries in Frontal Collisions with Different Deployment Postures of “Zero Gravity” Seats in Autonomous Vehicles
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Hequan Wu1, 2, Jiangqiang Pan1, Chuhong Bian1, Shuangquan Gao1
Automobile Technology | 2025, (8) : 1 - 14
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Automobile Technology | 2025, (8): 1-14
• Special Topic on the Study of Damage Mechanisms and Key Factors in Vehicle Collisions under Multiple Scenarios •
Study on Occupant Injuries in Frontal Collisions with Different Deployment Postures of “Zero Gravity” Seats in Autonomous Vehicles
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Hequan Wu1, 2, Jiangqiang Pan1, Chuhong Bian1, Shuangquan Gao1
Affiliations
  • 1 College of Mechanical and Vehicle Engineering, Changsha University of Science and Technology, Changsha 410114
  • 2 Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha 410114
Published: 2025-08-24 doi: 10.19620/j.cnki.1000-3703.20250171
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A study was conducted on the collision safety of passengers with “zero gravity” seats at different deployment angles. Firstly, a frontal collision model of the vehicle is established, and the seat angles were adjusted to standard posture, zero gravity sitting posture, and the backrest angle was adjusted to three different postures of 120°, 150°, and 180° based on the standard posture. Then, two collision speed curves of 40 km/h and 56 km/h were applied to the model, respectively. Simulation comparison shows that the injury values of the occupant's head, neck, and chest are the smallest in the standard posture. The injury values of the occupant's head and neck are the largest in the zero-gravity posture. The risk of chest injury increases with the increase of posture angle. The chest undergoes compression deformation, and the lungs are most susceptible to contusion, followed by the liver and spleen. The increase in the inclination angle of the passengers increases the risk of severe diving and “secondary collision” of the lower limbs.

automatic driving  /  recline position  /  frontal collision  /  injury of occupants  /  biomechanic
Hequan Wu, Jiangqiang Pan, Chuhong Bian, Shuangquan Gao. Study on Occupant Injuries in Frontal Collisions with Different Deployment Postures of “Zero Gravity” Seats in Autonomous Vehicles[J]. Automobile Technology, 2025 , (8) : 1 -14 . DOI: 10.19620/j.cnki.1000-3703.20250171
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doi: 10.19620/j.cnki.1000-3703.20250171
  • Online Date：2025-10-28
  • Published：2025-08-24
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  • Revised：2025-03-11
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Affiliations
    1 College of Mechanical and Vehicle Engineering, Changsha University of Science and Technology, Changsha 410114
    2 Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha 410114
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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