以後輪操控強化車輛轉向穩定之研究

Abstract

本論文建構二維的車輛模型，模擬車輛穩態轉向的軌跡，探討車輛轉向瞬心位置變化與側向力的關係，最後提出操控後輪轉向以調整車輛轉向特性的方法，以四輪的側滑現象來評估比較各種後輪操控的方式，提出軌跡修正的輔助系統。並將此系統實現在本研究所建構四輪轉向實驗車輛，完成驗證軌跡輔助修正系統。

This study sets up vehicle dynamic mode. By using the mathematical model and numerical method established in this study, the relation between instant center and side force of vehicle body can be thoroughly realized. Finally this study proposes a method to adjust the handling characteristics by rear wheel steering and realize the method by setting up a four-wheel-steer experimental vehicle, experimentally evaluates the theory.