侯建军^1,2，王卓^1,2，张国庆^1,2，徐龙^1,2，赵娜^1,2

（1.内燃机可靠性国家重点实验室，山东 潍坊  261061；2.潍柴动力股份有限公司，山东 潍坊  261061）

    摘要：为了研究高速牵引车的冲坡特性，结合驾驶员的操作规律以及智能驾驶的发展要求，分别就初始车速、坡度、坡道长度等各项影响因子对高速牵引车冲坡特性的影响展开分析研究。结果显示，初始车速、坡度和坡道长度对冲坡都有影响，其中，车速和坡度对动力性和经济性的影响较大。

    关键词：冲坡特性；影响因子；车速；坡度；坡道长度

    Abstract：To study upward characteristic for high speed tractor, combining current driver control method and the Intelligent drive, carried out the simulation analyze of factors which affect upward characteristic, such as initial speed, slope angle, slope length. Analysis shows that the initial speed，slope angle，slope length all affect upward characteristic, while the initial speed and slope angle have greater affect on performance of power and economy.

    Key words：upward characteristic；factor of influence；velocity；grade；length of grade