底盤很好是甚麼感覺? - 汽車

By Michael
at 2023-04-27T10:50
at 2023-04-27T10:50
Table of Contents
※ 引述《jumpballfan (QQ)》之銘言:
: 常常看車評試車會提到底盤很好
: 但這感覺實在很抽象
: 底盤很好的感覺到底是甚麼感覺
: 有人能簡單說明嗎
: 或著有誰能推薦底盤很爛的車,下次去試開看看
: 體驗底盤很爛的感覺順便還能當個基準
底盤評價(靜態):上機台量測K&C
AB Dynamics的SPMM(Suspension Parameter Measurement Machine)
https://www.youtube.com/watch?v=PjxbMSgbqoU
MTS的Kinematic & Compliance Deflection Measurement Systems
https://www.youtube.com/watch?v=ppcB2vNM2SQ
測試項目:
Standard Kinematics: bounce, roll
Steering Kinematics
Lateral Compliance
Longitudinal Compliance
Aligning Torque Compliance
量測結果得到幾百條曲線(受力、位移、角度)
確認這款車基本的底盤特性
綜合操控評價(on-track)
測試項目:
double lane change(ISO 3888)
https://i.imgur.com/AQs7yvL.jpg

constant radius(ISO 4138)
https://i.imgur.com/7qJsdgN.jpg

slalom(GB/T6323.1 or CNS 9244 D3131)
https://i.imgur.com/Ktc6LD3.jpg

step steer
https://i.imgur.com/tavkfPZ.jpg

J-turn
https://i.imgur.com/sVcNWkL.jpg

fixed timing fishhook
https://i.imgur.com/Ci24fYL.jpg

roll rate feedback fishhook
https://i.imgur.com/Iq2whpo.jpg

GB/T相關測試項目
https://i.imgur.com/k9PGXjI.png

中國汽車工程研究院發表的"汽車操控安全性指數測試評價過程"
https://i.imgur.com/tgOiXL7.jpg

主觀評價:
https://i.imgur.com/hUyA4KB.jpg


上述眾多的項目
不同的車速條件,不同方向盤轉角速度(波形),車輛的動態響應都會不同
操控性是許多獨立測試項目的綜合
不能單單只看其中一項
講到爛了
麋鹿(double lane change)只是眾多獨立項目測試中的其中一項
而且這項測試結果還受電控介入程度影響
測試"障礙物閃避"能力
https://i.imgur.com/JuyumkC.jpg

單拿一個項目來評價底盤好壞,這到底哪裡客觀了.....
每次提底盤操控就有人把麋鹿測試拿出來說嘴
不就是在凸顯自己知道得很少嗎.....
--
Tags:
汽車
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