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汽车转向特性是汽车操纵性稳定性重要研究课题之一。汽车转向特性可分三类,一般认为当汽车固定方向盘,从极低车速开始,逐步加速绕圈行驶时,根据转弯半径的增加、不变或减小分别称为不足转向、中转性向与过多转向。近年来,在我们大量的试验工作中,发现有这样一些现象:有些具有明显过多转向的汽车,能够以80公里/小时的车速在公路上正常行驶,却在较低车速的角阶跃反应或蛇行穿杆试验中调头(激转)而失去控制。还有些明显不足转向
Car steering characteristics is one of the important research topics of vehicle handling stability. Car steering characteristics can be divided into three categories, the general view that when the car fixed steering wheel, starting from a very low speed, and gradually accelerate the winding drive, according to the turning radius increases, unchanged or reduced, respectively, referred to as understeer, transit and over Turn. In recent years, in our extensive trial work, we have found some phenomena that some vehicles with obviously excessive steering can drive normally on the road at a speed of 80 km / h but at a slower angular step response Or snake through the test runner (excited) and out of control. There are also some obvious deficiencies