行星齒輪機構於非獨立式懸吊系統之運用

A Design of the Planetary Gear Mechanism for Non-Independent Suspension System

張家禎(Chia-Chen Chang)

指導教授 ： 尤正吉

國立臺北科技大學/機電學院/車輛工程系所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00446

摘要

目前車用非獨立式懸吊系統大多使用簡單的四連桿機構與車身連接，以達到抗車身翻滾以及將輪軸維持水平的效果，然而有些機構所佔據的空間甚大，造成車室空間的壓縮，甚至造成車輛整體重量增加。本研究規劃以行星齒輪機構取代原有的四連桿機構，運用其在特定條件下可以形成直線軌跡的特性，並在尺寸上作最小化的設計，發展出一新型非獨立式懸吊系統。根據車身翻滾角度對於翻滾剛性及車身重心的改變量為評估標準，再與數種不同類型的行星齒輪設計作比對，篩選出在翻滾剛性、機構尺寸及車身重心轉移上表現最佳的機構。目標使乘坐者在車輛過彎時所受到的傾斜程度降低，及將輪軸維持水平以增加輪胎對地面的接觸面積，確保行車安全性與穩定性。

關鍵字

行星齒輪機構 ； 非獨立式懸吊 ； 翻滾剛性

並列摘要

Most current Non-Independent suspensions use simple 4-bar linkages by linking them to bodies to achieve the resistance of rolling. However, some of these mechanisms occupy a large quantity of space, which reduce the passenger space, and even increase the weight of entire vehicle. This study proposes several types of planetary gear mechanism to substitute the original 4-bar linkage, by using the features of straight track on specific condition, in addition to minimize the size of mechanism, then develop a novel Non-Independent suspension. According to body roll angle versus roll stiffness and body center gravity translation, this study selects the best mechanism design way which has good performance on roll stiffness, center gravity location and size. The purpose is to let passengers tilt less during cornering, and maintains the axle being horizontal to the road, which made more tire contact to the road to ensure the safety and stability of driving.

並列關鍵字

Planetary Gear Set ； Non-Independent suspension ； Roll Stiffness

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