基于转向试验的车辆主销定位参数完整解算

受前轮转向轴几何结构的影响,车轮轮心及轮胎印迹中心的位置随车轮左右转动而变化.如果在悬架结构未知的情况下能够根据车轮运动计算出主销定位参数,将有利于悬架设计.提出了应用汽车悬架KnC特性试验台转向试验数据解算主销定位参数的方法,定位参数包括:主销内倾角、主销后倾角、主销后倾距、主销偏移距、轮心主销纵向偏移距及轮心主销侧向偏移距.应用Adams仿真结果及试验数据对提出的解算方法进行了验证,误差在允许范围内,解算方法满足使用要求.

Calculation of Vehicle Kingpin Positional Parameters Based on Steering Test

Both tire contact point and wheel center is changed with rightward and leftward of vehicle steering by the effect of geometry of steering axis.It's benefit to calculate steering axis geometry by wheel movement for suspension design.A vehicle suspension Kinematics and Compliance(KnC) facility was used to get steering test data,such as kingpin inclination angle,caster angle,caster trail,scrub radius,spindle trail and kingpin offset at wheel center.The method was validated by the simulating result of Adams and...