Abstract: For the sake of improving the protection effect of the restraint system in a frontal collision of cars on different body shape female drivers, an effective model was established by Madymo according to data obtained from a real vehicle crash test by National Highway Traffic Safety Administration. A female model of the 5th, 50th, and 95th percentiles' body size of Chinese adult females was established. Then the orthogonal test method was used for the simulation test to study the match of steering column inclination, height of the chair and seatbelt, angle of the backrest to chair and the time of the airbag's point-burst that have impact on female drivers. The results show that the higher and larger the female body type is, the lower the WIC will be, and that the optimized restraint system model can significantly reduce the WIC value of female drivers with small or medium size.

Key words: constraint system, female drivers, weighted injury criterion (WIC), body type, Madymo, orthogonal test