根轨迹法在汽车操纵稳定性研究中的应用

Integrated Root Locus Method and Stability Factor to Study Handling Stability of Automobile

根轨迹法由于没有直接反映汽车操纵稳定性研究中极为重要的参数——稳定性因数K,因此对于汽车操纵稳定性的研究有一定的局限性。为此将根轨迹法与稳定性因数K以及车辆的稳定性能、动态性能有机地结合起来。理论分析和实例分析都说明,改进后的根轨迹法,既能直观的判断汽车操纵稳定性的优劣,还可以分析出汽车操纵稳定性不佳的原因。

Root locus method does not directly reflect automobile dynamic performance on the study of automobile handling stability and this feature limits its application. Consequently, combination of the root locus method and stability factor, which reflects automobile dynamic performance, was used for the study on handling stability of automobile. The analyses both in theory and examples show that the new method could evaluate the performance of handling stability directly, and help to detect the factors relate to it.