玩具模型車的品管是不是比特斯拉好? - 汽車
By Anonymous
at 2020-04-29T18:36
at 2020-04-29T18:36
Table of Contents
DTS(Dimentional Technical Specification)是間隙/面差的定義或要求
只能說Tesla在這塊把關非常差
車上的組裝件間存在間隙是一定的
設計階段會要求間隙要一致,但實車DTS卻這麼差代表
1. 公差拆解有問題
2. 製造/組裝出問題
零件跟零件間的間隙可能某幾處太小又某幾處太大,不符合當初設計目標
原本設計階段的目標是間隙一致,實際造出來卻是不等間隙
就很容易產生異音問題
當行駛時路面振動傳遞至整車,若振動量大於間隙就會互相磨擦或敲到
車輛工程把這類異音稱為Squeak & Rattle (Squeak是摩擦聲,Rattle則是敲擊聲)
屬於振動噪音(NVH)領域範疇
NVH問題難就難在,如何在設計階段透過模擬分析計算量化不管是振動或噪音量
但車廠一旦越往豪華車靠攏,對NVH問題也得越重視就是了
設計階段還可進行設計變更,根本改善異音問題
https://i.imgur.com/oJEhEB6.jpg
https://blog.altair.com/car-squeak-rattle-simulation-help/
但若一直到試量產(pilot run)發現有異音,車廠多半只能提出治標方法,像是
1. 加大內裝件之間的間隙
2. 增加卡扣位置 (trial and error)
3. 加入制震墊(改變質量)來改變振動頻率
※ 引述《Januvia (佳糖維)》之銘言:
: https://www.youtube.com/watch?v=Z0r-vC-RHkU&t=2s
: 呃... 應該說一台有著"成噸的問題" 的 Model Y
: 首先 特斯拉名產 巨大的鈑件公差是少不了的
: https://imgur.com/rfUBj6I
: 前行李廂蓋
: https://imgur.com/browcLv
: 車門交接處
: https://imgur.com/lJwgBpV
: 後車燈交接處
: https://imgur.com/Z9LLgCL
: 車門底部塑料不密合
: https://imgur.com/CIw7chF
: 車燈內部起霧 (他自己買的 Model 3 也有這個問題)
: https://imgur.com/HAFhhKh
: 然後是尾門打開到一半會卡住
: https://imgur.com/qdbaaSI
: 右邊的後座自動傾倒功能失效 只能手動
: https://imgur.com/RWXh405
: 再來進到內裝 我覺得最誇張的是這個 中央後座根本就快散了
: https://imgur.com/iXayYjD
: https://imgur.com/Ohzo4BQ
: B柱膠條凸起與縫隙
: https://imgur.com/Ai3Lhwo
: 前座下方地毯切成兩半 中間有大縫隙
: 感覺連玩具車的組裝品質都沒有這麼差吧
: 也是滿感謝副教主的招黑才能這麼認識特斯拉
: 本來對特的感覺只是使用不同能源的汽車
: 深入了解才發現他的產品是長這樣 哈哈
: 據說影片中這台要價 70000 USD
: 這個價格都可以買 Cayenne 了 不知道買 Model Y 的在想啥
: 特真的只有 0-100 可以拿來說嘴
: 就好像人家六科90 總分540 上台大醫學系
: 特的數學考100分 其他科0分 只能上稻德國真遠
: lol
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