【摘要】 为了探究两车斜角碰撞工况下约束系统优化趋势,建立了30°斜角碰撞工况下的运动型实用汽车(SUV),中型车,小型车的驾驶员约束系统模型,对其约束系统灵敏因子分别进行目标车和同伴车的单车参数优化和对两车乘员加权损伤准则(WIC)值之和最低进行碰撞兼容性组合优化。结果表明:在车车斜角碰撞中,无论何种车型,约束系统参数优化呈现气囊排气孔面积趋于增大、气体质量流率趋于增大、安全带限力值趋于降低、预紧器作用时间趋于推迟的趋势;组合优化后,更接近碰撞中初始乘员WIC值更大的车辆参数优化趋势。更多还原

【Abstract】 Some driver restraint system models were developed for sport utility vehicle(SUV), medium-sized car and small-sized car to explore the optimization trend of restraint system in car-to-car oblique crash of 30°. The restraint system optimizations were conducted based on the sensitivity factors for the subject vehicle, the partner vehicle and the combination with the consideration of crash compatibility by minimizing the sum of weighted injury criterion(WIC) value of both. The results show that to the types of the vehicles mentioned above, there are certain optimization trends for the factors of restraint system: the air bleed area and mass flow of airbag tend to increase, the seatbelt force limit tends to decrease, and the pre-tensioner action time tends to be postponed. During the combined optimization, the parameters’ optimization trend is closer to that of the vehicle with the larger initial WIC value.更多还原