CAJ | 학술논문

汽车整车轻量化水平与油耗大小密切相关，目前还没有公认的评价措施。本文研究大量车型数据，得出3种轻量化评价方法：针对同类车型，以4门轿车和承载式SUV（运动型多用途轿车）为例，整车面密度（L0=Wk/A，Wk为整备质量，A为轮边距与轴距乘积所得投影面积）随A近似线性增加；为量化表征，推导出整车相对面密度ΔLm=L0-La=Wk/A-a· A-b；划分为7级轻量化评价等级；对不同种类乘用车，考虑乘客人数的概率，提出人均轻量化系数Lp的方法；提出零部件相对轻量化系数Lr的评价方法，以前横梁总成为例验证了评价方法的有效性。
기차정차경양화수평여유모대소밀절상관，목전환몰유공인적평개조시。본문연구대량차형수거，득출3충경양화평개방법：침대동류차형，이4문교차화승재식SUV（운동형다용도교차）위례，정차면밀도（L0=Wk/A，Wk위정비질량，A위륜변거여축거승적소득투영면적）수A근사선성증가；위양화표정，추도출정차상대면밀도ΔLm=L0-La=Wk/A-a· A-b；화분위7급경양화평개등급；대불동충류승용차，고필승객인수적개솔，제출인균경양화계수Lp적방법；제출령부건상대경양화계수Lr적평개방법，이전횡량총성위례험증료평개방법적유효성。
The level of vehicle lightweight was not able to accurate evaluated currently, which is closely related to fuel consumption. Three kinds of evaluation methods of lightweight were obtained by analyzing typical vehicles’data in this paper:For congener vehicle,taking 4-door sedan and sport utility vehicle as examples,vehicle areal density(L0=Wk/A,Wk is curb weight,A is area of tread width times wheelbase)increases approximate linearly with increasing A. To quantitative representation , vehicle relative areal density (ΔLm) was deduced;lightweight levels were divided to 7 grades;for different type vehicle,considering probability of passengers’number,methods of per capita lightweight coefficient was proposed;relative lightweight coefficient was presented , which has been validated by evaluation of front crossbeam assembly.