能够输出电动汽车爬坡性能，直观地反映出电动汽车在爬坡时最好的动力区间，有利于优化传动系统的传动比以及各类动力性的分析。(It can output the performance of the electric vehicle climbing, and directly reflect the best dynamic range of the electric vehicle, which is helpful to optimize the transmission ratio of the transmission system and the analysis of all kinds of power.)