Malinga ndi malipoti, Nissan yakonza njira yopepuka yamayimbidwe amtundu wake wa 2022.

Akatswiri opanga ma acoustic ali ndi zida zosiyanasiyana zomwe angasankhe kuti achepetse phokoso, kugwedezeka, komanso nkhanza (NVH) m'magalimoto. Komabe, kusankha kwawo nthawi zambiri kumabweretsa quantifiable drawback-kuwonjezeka kulemera. Panthawi yachitukuko, galimoto yatsopano imatha kuwonjezera mapaundi 100 kapena kuposerapo mosavuta chifukwa chogwiritsa ntchito zinthu zotsekereza, zotchinga zowunikira komanso zotulutsa mawu, monga zokutira, thovu lolowetsedwa, ndi magalasi osamveka.

M'nthawi yogogomezera zopepuka, ofufuza azinthu akuyembekezera zatsopano kuti apambane nkhondo ya NVH. Zomwe zimatchedwa metamatadium zimapereka chiyembekezo chachikulu chifukwa cha mtengo wake wotsika poyerekeza ndi njira zachikhalidwe za NVH.

Sing'anga ya metamaterial ndi chinthu chopanga macroscopic chokhala ndi mawonekedwe atatu a uchi. Chifukwa cha kuyanjana kwanuko pakati pa zigawo zamagulu, zimatha kupereka ntchito yabwino kwambiri popondereza kapena kuwongolera mafunde osafunikira.

Kuyambira 2008, Nissan wakhala akufufuza kwambiri za metamatadium. Pa 2020 Consumer Electronics Show, Nissan adawonetsa zidazi kwa nthawi yoyamba ndipo adati igwiritsa ntchito izi kuchepetsa NVH mugalimoto yatsopano yamagetsi ya 2022 Ariya.

Susumu Miura, injiniya wamkulu wa Nissan, adanena kuti kutulutsa mawu kwa metamaterial kumatha kufika kanayi kuposa njira zachikhalidwe. Monga mauna osavuta atakulungidwa mufilimu yapulasitiki, nkhaniyi imatha kuchepetsa phokoso la 500-1200Hz, lomwe nthawi zambiri limachokera mumsewu kapena njira yotumizira. Kanemayo akuwonetsa kuti chitsulo ichi chikhoza kuchepetsa phokoso lakumbuyo mu cockpit kuchoka pa 70dB kufika kuchepera 60dB. Kampaniyo imati poyerekeza ndi mapulogalamu omwe alipo a NVH, mtengo wazinthuzi ndi wotsika, kapena wofanana ndi. Nissan sanaululebe omwe akugulitsa zida zachitsulo.

Adasindikizidwanso ku gulu la Gasgoo