关键词: C-NCAP；SAB；抬手臂；气袋折叠

Abstract: The seat side air bag (SAB) can effectively reduce the degree of chest and abdomen contusion in side collision, and the 2024 version of China-new car assessment program (C-NCAP) has more stringent requirements for the development of SAB. Focusing on the change point and regular performance improvement requirements of 2024 C-NCAP, this paper uses simulation analysis method to analyze the influence of air bag type and folding mode on SAB performance, and carries out simulation benchmarking of parts and systems after optimization of SAB. It is confirmed that changing the SAB design can effectively improve the arm lifting posture of the dummy in the system simulation model, reduce the damage index of the dummy, and finally verify the improvement of the protection effect through the real car, which has a certain guiding role for the design and development of the SAB in the subsequent project.

Key words: C-NCAP; SAB; arm lifting; airbag folding