k6 裝上了後下防傾桿 - 汽車改裝

※ 引述《moonshade (一隻歐拉貓)》之銘言：
: 討論到sway bar的功能，這一段是
: wiki上的 http://en.wikipedia.org/wiki/Sway_bar
: Main functions
: Anti-roll bars provide two main functions. The first function is the
: reduction of body lean. The reduction of body lean is dependent on the total
: roll stiffness of the vehicle. Increasing the total roll stiffness of a
: vehicle does not change the steady state total load (weight) transfer from
: the inside wheels to the outside wheels, it only reduces body lean. The total
: lateral load transfer is determined by the CG height and track width.
: The other function of anti-roll bars is to tune the handling balance of a
: car. Understeer or oversteer behavior can be tuned out by changing the
: proportion of the total roll stiffness that comes from the front and rear
: axles. Increasing the proportion of roll stiffness at the front will increase
: the proportion of the total load transfer that the front axle reacts and
: decrease the proportion that the rear axle reacts. This will cause the outer
: front wheel to run at a higher slip angle, and the outer rear wheel to run at
: a lower slip angle, which is an understeer effect. Increasing the proportion
: of roll stiffness at the rear axle will have the opposite effect and decrease
: understeer.

加強前防傾桿->過彎時前輪左右側傾(荷重移動)變小->彎外側前輪荷重變小->胎壁變形小
->前輪滑差角變小

加強後防傾桿-> 後 -> 後 ->
->後

而轉向不足與過度取決於前後輪滑差角比值(詳見歐洲車板)

所以前輪滑差角變小(而後輪不變)->轉向不足減輕(或由不足變過度,或轉向過度加強)
後 前 加強 過度 不足 不足


轉向不足不見得不好;轉向過度常要人命.


: 因為美規k6只有前防傾，沒有後防傾，所以裝後防傾有助於改善understeer
: 我是基於這樣的紙上研究，裝完也有感覺改善（希望不是錯覺）
: 我想那段文字應該是說前後兩外輪的camber不一樣導致slip angle
: 不同，至於什麼roll center那一大堆的我還沒搞懂，
: 想去圖書館借本書來研究，網路上的東西圖好少Orz



--
超跑夢 ///Ｍ Ｐｏｗｅｒ

--