全地形沙地策略提升车辆通过性能的试验研究  

Experimental Research on All-terrain Sand Strategy Used to Improve Vehicle Driving Ability

作　　者：赵永坡[1] 谢善亮[1] 李康[1] 逄淑一[1] 

机构地区：[1]长城汽车股份有限公司技术中心河北省汽车工程技术研究中心,河北保定071000

出　　处：《工程与试验》2016年第2期27-30,50,共5页Engineering and Test

摘　　要：常规车辆的性能设计主要是针对铺装路面,这有可能导致车辆在沙地路面行驶过程中遇到陷车和动力性差等问题。本文通过对比车轮在铺装路面和沙地路面下的受力状况,分析导致此问题发生的原因。针对此问题,开发了一种能够自动识别路面类型的控制算法。根据路面识别情况,制定发动机、变速器及TCS沙地的控制策略来提高车辆的沙地通过性能。最后通过实车标定,验证该控制策略的有效性。Performance design of conventional vehicle is aimed at regular road,which will possibly cause the vehicle to sink into the sand or have bad power performance when driving in the sand. The causes of above problems are analyzed in the paper by comparing force analysis of a wheel in hard pavement and sand pavement. Firstly,a method of automatically detecting pavement type is developed to solve the problems,and then the sand control strategies of EMS,TCU and TCS are made according to the detection result to improve the driving ability of vehicle. Finally,the validity of the strategies is verified through real vehicle calibration.

关 键 词：路面识别 发动机控制策略 变速器控制策略 TCS控制策略 

分 类 号：U461.51[机械工程—车辆工程]