Abstract: In order to improve female driver safety in frontal 40% offset collision, firstly, a male driver restraint system model including driver seat, steering system, safety airbag, male dummy, safety belt and so on was established by simulation software MADYMO, and the model was verified by test, secondly, according to 2015 European New Car Assessment Programme, a female driver restraint system model was established by adjusting driver seat position and substituting female dummy for male dummy, finally, influences of the parameters of driver restraint system on injury to female driver were analyzed by means of the above female driver restraint system model. The results indicate that, as the steering column length decreases, the head and chest injury decrease, but the stretch bending moment of occipital bone increases,that as the length of the airbag strap at four o'clock, eight o'clock, twelve o'clock position is 180 mm, 180 mm, 270 mm respectively, the head injury criterion rises by 25.50% compared with the original value,and that as the limited load level of safety belt declines from 5.0 kN to 2.5 kN, the chest compression displacement falls by 14.44%.

Key words: frontal 40% offset collision, restraint system, design parameters, female driver, protection