可變桿長式懸吊系統之特性分析

本研究發展可變桿長懸吊系統，針對一般常見之雞胸骨式與麥花臣支柱式多連桿懸吊系統，於車輛過彎時改變車身翻滾中心位置以及使車輛趨於轉向不足以達到抑制車身翻滾的效果，並且藉由此系統來抑制不穩定力矩的產生。首先建立各懸吊系統之四分之ㄧ車模型，利用懸吊導數法執行懸吊在空間中之運動分析，探討桿長改變時對於輪胎姿態角以及steering offset的影響。接著二分之ㄧ車模型，找出懸吊幾何之翻滾中心位置，利用桿長長度改變來觀察翻滾中心位置的移動以及使車輛轉向行為，並歸納出使翻滾中心移動至最佳位置的桿件。最後利用ADAMS/Car分別驗證上述懸吊數學模型的正確性，並且利用半車模擬與全車模擬進行此研究之可行性評估。

關鍵字

可變桿長懸吊；懸吊導數法； ADAMS ；翻滾中心

並列摘要

In this paper, variable link-length suspension system is proposed to improve anti-roll performance of vehicle. The independent suspension mechanisms including Double-Wishbone type, Macpherson Strut type, and multi-link type, usually used in general passenger cars and this paper only builds variable link-length suspension system for multi-link suspension (Double-Wishbone type and Macpherson Strut type). The quarter-car and half-car geometry model of variable link-length suspension system are built using suspension derivative method. By using this method this study can find suspension characteristics, such as camber angle, toe angle, steering offset, and roll center location and also the effects of variable link-length on suspension characteristics. Finally, the analysis results are verified with simulation of ADAMS/Car software.

並列關鍵字

variable geometry suspension ； suspension derivatives ； ADAMS ； roll center

參考文獻

[20] 陳柏豪，獨立式懸吊機構之空間運動分析，碩士論文，國立臺北科技大學車輛工程研究所，台北，2011。

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[2] T. Shim and P. C. Velusamy, “Influence of Suspension Properties on Vehicle Roll Stability,” SAE paper No.2006-01-1950.

[3] S. H. Lee, U. K. Lee and C. S. Han, “Enhancement of Vehicle Handling Characteristics by Suspension Kinematic control,’’ Proc. Instn. Mech. Engrs., vol.215, Part D, 2001.

[4] U. Lee and C. Han, “A Suspension system with a variable roll centre for the improvement of vehicle handling characteristic,” Proc. Instn. Mech. Engrs., vol.215, Part D, 2001.

國際替代計量

可變桿長式懸吊系統之特性分析

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