In recent years, auto accidents have caused a large number of casualties and economic loss in the whole world, which force governments and automobile enterprises to invest much manpower and material resources to vehicle safety research.

• 近年来,汽车交通事故每年在全世界导致大量的人员伤亡和经济损失,迫使各国政府和汽车生产企业投入大量的人力和物力从事汽车安全性研究。