关键词: 远端乘员保护；虚拟测评；Sid-IIs 5th

Abstract: Side impact is one of the common daily traffic accidents. To achieve more comprehensive side impact protection systems, the 2024 version of the China new car assessment program has introduced new remote virtual assessment content and set requirements for the accuracy of simulation correlation for a single remote occupant. Based on a specific vehicle model, this paper addresses the issue of insufficient correlation accuracy of the neck Mx of the remote single occupant Sid-IIs 5th percentile female dummy. A simplified mechanical analysis of the dummy's neck is conducted, identifying influencing factors such as the retained length of the seat tear seam, friction between the airbag and the seat, density of the seat cushion foam, friction between the dummy and the seat, friction between the dummy and the seatbelt, and the computational environment and settings. Using a single-variable method, the impact of these parameters on the correlation accuracy of the neck Mx of the Sid-IIs 5th percentile female dummy for remote occupant protection in the given vehicle model is analyzed. Through parameter optimization, the correlation accuracy of the neck Mx is improved to 0.638, providing engineering guidance for future remote virtual assessment simulation correlation.

Key words: remote occupant protection; virtual assessment; Sid-IIs 5th