うねり路走行時における車両旋回性能の解析 : 第2報:懸架系リンク幾何特性の影響

概要

論文の詳細を見る
To improve maneuverability and stability of automobiles, it is important to grasp the fundamental relevancy of characteristic values for vehicle design and cornering performances on such broken road surface as winding path, besides level and flat road surface. Paying attention to the characteristics of suspension link geometry related to the attitude change of the body, we analyze the effects of roll center height on cornering performances on undulated road surfaces. As a result, it can be confirmed that the rear roll center characteristics tend to exert more influence on cornering behaviors than the front ones. We also clarify the effects of the initial roll center height, and of the ratio of roll center change to wheel travel, on cornering performances in the case of turning on winding road. Furthermore, the effect of anti-pitching geometry that produces the power of suspension link, so that the body pitching angle is restrained during braking, is investigated. Preparing a new vehicle model with a total of 14 degrees of freedom that considered each attitude angle and displacement on body in 3 directions (6 degrees of freedom), each displacement of unsprung mass (4 degrees of freedom) and each revolution angle of wheel (4 degrees of freedom) for theoretical analysis, we carried out the computer simulation.
久留米工業大学の論文
1998-12-20