汽车滑行阻力系数的测定方法  

A Method of Determining Coasting Resistance Coefficient

作　　者：朱卫东[1] 刘学琼[1] 郭友利[1] 郭虎[1] 

机构地区：[1]东风商用车技术中心,武汉430056

出　　处：《汽车科技》2010年第3期79-81,共3页Auto Sci-Tech

摘　　要：通过matlab的符号微分方程解法求出汽车滑行运动方程,在给定的阻力系数范围内找到计算数据和采样曲线之间有最小平均偏差的阻力系数,也就是最能拟合滑行采样数据的滚动阻力系数和风阻系数,这种方法的可操作性强而且计算精度可以通过对阻力系数的细分大小来控制。The thesis is to conclude automobile coasting moving equation by matlab symbolic differential equation ,which is to find out minimal average differential resistance coefficient between calculated data and sampling curve by given resistance coefficient, that is the most matched rolling resistance and wind resistance coefficients for coasting sampling data, the method is strongly maneuverable and the calculation precision can be controlled by detailing of resistance coefficient.

关 键 词：滑行 阻力系数 平均偏差 

分 类 号：U461.1[机械工程—车辆工程]