关键词: 行人保护；儿童头型；成人头型；头部伤害值；头型冲击器

Abstract: This article is based on the head collision injury of pedestrians in traffic accidents, combined with the evaluation system of the 2024 version of China-new car assessment program (C-NCAP) the regional division, scoring method and impactor calibration of children's head shape and adult head shape are analyzed in detail. Through the theoretical calculation of the head shape injury value HIC15, the experience accumulation of the acceleration curve injury value of the crash test. The size range of the head space check is proposed. And the key factors affecting the improvement of the safety performance of head collision are optimized and analyzed, which has guiding significance for improving the safety performance of pedestrian head protection in the early stage of subsequent model design.

Key words: pedestrain protection; children head type; adult head type; head injury value; head impactor