乘用车悬架参数对制动跑偏性能影响的研究

Study of Suspension Parameters effect on brake pull Performance of passenger Car

车辆在制动过程中如果发生跑偏,希望通过合理的悬架参数设定来抑制跑偏现象。本文选取了两个悬架参数,首先通过理论分析研究它们对制动跑偏性能的影响,随后找到与这两个悬架参数敏感度高的悬架零部件,通过改变零件状态调整两个悬架参数值,再借助carsim仿真和整车试验的方法对理论分析进行验证。最终得出车辆悬架参数及悬架零部件如何影响制动跑偏性能,为前期的设计提供参考依据。

Vehicle drift may appear while braking, and some suspension parameters need to be set reasonably to reduce the level of brake pull. This article choose two related parameters and study their effect on the brake pull performance by theoretic analysis firstly. Meanwhile suspension components which have high effects on the parameters will be found and adjusted to set different values of two parameters. Then carsim simulation and test can be used to validate the theoretic analysis result. Finally the conclusion how suspension parameters and components effect on the brake pull performance can be found, which can provide references for platform development and design in the early stage.