馬自達說新一代Mazda3降噪手段更厲害了 - 汽車
By Ida
at 2018-11-30T17:20
at 2018-11-30T17:20
Table of Contents
原文連結:
https://tw.lifestyle.appledaily.com/gadget/realtime/20181130/1475807/
Apple Daily
原文內容:
【新車新技解析】馬自達說新一代Mazda3降噪手段更厲害了
出版時間:2018/11/30 16:12
根據馬自達對人體的研究,新Mazda3的降噪開發重點放在直接影響客艙乘員的三個聲音特
性:音量、音調、音波。由此再根據音量、音調、音波隨時間的變化,以及聲音產生的方
向去抑制噪音產生、或者減小其音量,控制好聲音的波動和方向之後,就能實現「安靜」
的艙室環境。
實際的作法上,新Mazda3車室內採用所謂的「雙壁」結構,也就是在車體和地毯之間所留
出空間上作文章。把地毯那端和車體這端視為兩面牆,然後在這之間設計附著在地毯上的
纖維材料,在不增加重量的情況下提高消音的效率,然後盡可能減少地毯上的孔數,以顯
著增強隔音效果。
而頂篷和地墊上增加的吸音功能後可有效抑制高頻噪音外,一開始處理道路傳遞上來的噪
音方面則是著重在最小化噪音和振動。第一步針對輪胎優化,也就是輪胎採較軟材質胎壁
來降低垂直彈跳,達到抑制初期路面的震動,但這個「柔化」的比例很重要,否則胎壁的
支撐剛性不夠反而會拖累操控,現在馬自達的參數是將之軟化10%,此舉會讓輪胎分子之
間的排列變得較寬,此時摩擦係數熱量、滑移角就會減少,以便達到震動能量、聲噪的前
期抑制。但此時觸地負重卻也會因此增加,此時觸地負重增加所引起的副作用就交給和
GVC(G力導引控制系統)、懸吊架構去做分擔、消弭。
輪胎卸掉一部分的垂直彈跳能量後,簧下能量這時就來到懸吊臂上。這時「柔化」態度便
要轉成「剛強」,新馬3做法是把「懸吊臂上角度擴大」,便可以盡早增加垂直彈跳的輸
入,把力道做一個引導、讓能量盡量往裡、往車身中間走,靠著較多又集中車身結構去做
分散、消弭,這樣車輪、車身就不會有明顯的擺動。有助於防止不必要的振動傳遞到駕駛
室。(陳宏銘/綜合報導)
心得/說明:
所以國產車會越來越難生存
投入成本在降噪和制震, 只會讓車價更高更難賣
看來進口車優勢更強
--
https://tw.lifestyle.appledaily.com/gadget/realtime/20181130/1475807/
Apple Daily
原文內容:
【新車新技解析】馬自達說新一代Mazda3降噪手段更厲害了
出版時間:2018/11/30 16:12
根據馬自達對人體的研究,新Mazda3的降噪開發重點放在直接影響客艙乘員的三個聲音特
性:音量、音調、音波。由此再根據音量、音調、音波隨時間的變化,以及聲音產生的方
向去抑制噪音產生、或者減小其音量,控制好聲音的波動和方向之後,就能實現「安靜」
的艙室環境。
實際的作法上,新Mazda3車室內採用所謂的「雙壁」結構,也就是在車體和地毯之間所留
出空間上作文章。把地毯那端和車體這端視為兩面牆,然後在這之間設計附著在地毯上的
纖維材料,在不增加重量的情況下提高消音的效率,然後盡可能減少地毯上的孔數,以顯
著增強隔音效果。
而頂篷和地墊上增加的吸音功能後可有效抑制高頻噪音外,一開始處理道路傳遞上來的噪
音方面則是著重在最小化噪音和振動。第一步針對輪胎優化,也就是輪胎採較軟材質胎壁
來降低垂直彈跳,達到抑制初期路面的震動,但這個「柔化」的比例很重要,否則胎壁的
支撐剛性不夠反而會拖累操控,現在馬自達的參數是將之軟化10%,此舉會讓輪胎分子之
間的排列變得較寬,此時摩擦係數熱量、滑移角就會減少,以便達到震動能量、聲噪的前
期抑制。但此時觸地負重卻也會因此增加,此時觸地負重增加所引起的副作用就交給和
GVC(G力導引控制系統)、懸吊架構去做分擔、消弭。
輪胎卸掉一部分的垂直彈跳能量後,簧下能量這時就來到懸吊臂上。這時「柔化」態度便
要轉成「剛強」,新馬3做法是把「懸吊臂上角度擴大」,便可以盡早增加垂直彈跳的輸
入,把力道做一個引導、讓能量盡量往裡、往車身中間走,靠著較多又集中車身結構去做
分散、消弭,這樣車輪、車身就不會有明顯的擺動。有助於防止不必要的振動傳遞到駕駛
室。(陳宏銘/綜合報導)
心得/說明:
所以國產車會越來越難生存
投入成本在降噪和制震, 只會讓車價更高更難賣
看來進口車優勢更強
--
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