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近年来,以防止全球暖化为目的而对汽车的二氧化碳减排和提高汽车碰撞事故时乘车人员和行人安全的社会要求日益增加。为减少汽车行驶中二氧化碳的排放量,减轻汽车车体重量的效果是明显的。车重每减轻100kg,可使燃料效率提高1km/l,尾气也得到减排。另外对提高碰撞安全性,其基准一年更比一年严格,因此需提高车体强度,并进行最佳分配来确保乘车人员和行人的安全。
In recent years, there has been an increasing social demand for the safety of riders and pedestrians in reducing emissions of carbon dioxide from automobiles and increasing the number of car collisions to prevent global warming. In order to reduce the carbon dioxide emissions from driving a car, the effect of reducing the body weight of a car is obvious. For every 100kg reduction in vehicle weight, the fuel efficiency can be increased by 1km / l and the tail gas also reduced. In addition to improving collision safety, the benchmark is more stringent than a year in a year, and therefore, the strength of the car body needs to be improved and the optimal allocation is made to ensure the safety of motorists and pedestrians.