基于魔术公式的轮胎特征函数计算方法

提出了利用魔术公式(magic formula)计算轮胎特征函数的方法。基于轮胎力学特性试验数据辨识得到magic formula轮胎模型中的相关系数。根据magic formula轮胎模型可以计算轮胎在任意载荷、任意运动状态下与操纵稳定性相关的性能指标,用来进行性能的集成;同时可以作为对轮胎特性的要求,提供给轮胎供应商作为性能开发的基准。以某一车型轮胎选型过程中轮胎特征函数的计算为例,说明了具体的实现过程,此方法提高了汽车操纵稳定性匹配与性能集成的精度与效率,具有实际的工程意义。

Tire Characterizing Function Computation Method Based on Magic Formula

The method of using Magic formula to calculate tire characterizing function is proposed. Identifying the Magic Formula coefficients based on the test data of tire performance test. Then, the tire handling parameters of arbitrary load and movement states can be calculated by the Magic Formula coefficients. The coefficients either can be used for handling performance synthesis, or can be used for the target of tire development. Take a tire characterizing function computation as an example to illustrate the usage of this method. This method improves the precision and efficiency of tire matching, has practical engineering significance.