Kasar Japan ta fitar da jagororin irin wadannan na'urorin gargadi a watan Janairun 2010 da Amurka ta amince da dokar a watan Disamba na 2010. Hukumar Kula da Kare Hatsari ta Kasa ta Amurka ta fitar da hukuncin karshe a watan Fabrairun 2018, kuma tana bukatar na'urar ta fitar da sautin gargadi yayin tafiya cikin sauri kasa da 18.6 mph. (30 km / h) tare da yarda ta watan Satumba 2020, amma 50% na motocin "shuru" dole ne su sami sautin gargadi kafin Satumba 2019. A cikin Afrilu 2014, Majalisar Turai ta amince da dokar da ke buƙatar yin amfani da na'urar faɗakarwa na Acoustic Vehicle Alert System. AVAS).Masu sana'a dole ne su shigar da tsarin AVAS a cikin motocin lantarki masu ƙafafu huɗu masu ƙafafu da na'urorin lantarki waɗanda aka amince da su daga Yuli 1, 2019, da kuma ga duk sabbin motocin lantarki masu natsuwa da haɗaɗɗun motocin da aka yi rajista daga Yuli 2021. Motar dole ne ta ci gaba da ƙara ƙarar aƙalla 56. dBA (a cikin mita 2) idan motar tana tafiya 20 km/h (12 mph) ko a hankali, kuma iyakar 75 dBA.
Masu kera motoci da yawa sun haɓaka na'urorin sauti na faɗakarwa na lantarki, kuma tun daga Disamba 2011 motocin fasaha na ci gaba da ake samu a kasuwa tare da kunna sautin gargaɗin lantarki da hannu sun haɗa da Nissan Leaf, Chevrolet Volt, Honda FCX Clarity, Nissan Fuga Hybrid/Infiniti M35, Hyundai Sonata Hybrid, da Toyota Prius (Japan kawai).Model sanye take da tsarin kunnawa ta atomatik sun haɗa da 2014 BMW i3 (zaɓi ba a cikin Amurka), 2012 samfurin Toyota Camry Hybrid, 2012 Lexus CT200h, duk nau'ikan EV na Honda Fit, da duk motocin dangin Prius da aka gabatar kwanan nan a Amurka. , gami da daidaitaccen shekarar ƙirar 2012 Prius, Toyota Prius v, Prius c da Toyota Prius Plug-in Hybrid.Motar lantarki mai wayo ta 2013, ba zaɓi ba, tana zuwa tare da kunna sauti ta atomatik a cikin Amurka da Japan kuma ana kunna ta da hannu a Turai.
Ingantacciyar Vehicle Acoustics (EVA), kamfani ne da ke Silicon Valley, California kuma ɗaliban Stanford biyu suka kafa tare da taimakon kuɗin iri daga Ƙungiyar Makafi ta Kasa, ta haɓaka fasahar bayan kasuwa da ake kira "Vehicular Operations Sound Emitting Systems" (VOSES) ).Na'urar tana sanya motocin lantarki masu haɗaɗɗun sauti kamar motocin injunan konewa na ciki na al'ada lokacin da abin hawa ya shiga yanayin wutar lantarki mai shiru (EV), amma a ɗan ƙaramin sautin mafi yawan motocin.A gudun da ya fi tsakanin mil 20 a kowace awa (kilomita 32/h) zuwa mil 25 a kowace awa (kilomita 40/h) tsarin sauti yana kashewa.Hakanan tsarin yana kashewa lokacin da injin konewar matasan ke aiki.
VOSES tana amfani da ƙarami, lasifikan sauti na kowane yanayi waɗanda aka sanya akan rijiyoyin dabarar matasan kuma suna fitar da takamaiman sauti dangane da alkiblar da motar ke tafiya don rage gurɓacewar amo da ƙara girman bayanan sauti ga masu tafiya a ƙasa.Idan motar tana ci gaba, ana zazzage sautin a gaba;kuma idan motar tana juyawa hagu ko dama, sautin yana canzawa a hagu ko dama daidai.Kamfanin ya ba da hujjar cewa "kararrawa, ƙararrawa da ƙararrawa sun fi jan hankali fiye da amfani", kuma mafi kyawun sautuna don faɗakar da masu tafiya a ƙasa kamar mota ne, kamar "laushi mai laushi na injin ko jinkirin tayoyi a kan titi."Ɗayan tsarin sauti na waje na EVA an tsara shi musamman don Toyota Prius.
Lokacin aikawa: Satumba 11-2023
