{"id":13491,"date":"2021-05-16T00:00:58","date_gmt":"2021-05-15T17:00:58","guid":{"rendered":"https:\/\/www.okxe.vn\/blog\/?p=13491"},"modified":"2024-05-15T16:13:25","modified_gmt":"2024-05-15T09:13:25","slug":"cong-nghe-bien-thien-vva","status":"publish","type":"post","link":"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cong-nghe-bien-thien-vva","title":{"rendered":"T\u00ecm hi\u1ec3u c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA l\u00e0 g\u00ec?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >N\u1ed9i Dung T&oacute;m T\u1eaft B&agrave;i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-69d10ae2d6762\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-69d10ae2d6762\"  type=\"checkbox\" id=\"item-69d10ae2d6762\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cong-nghe-bien-thien-vva\/#Tong_quan_ve_cong_nghe_bien_thien_VVA\" title=\"T\u1ed5ng quan v\u1ec1 c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA\u00a0\">T\u1ed5ng quan v\u1ec1 c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cong-nghe-bien-thien-vva\/#Cong_nghe_VVA_la_gi\" title=\"C\u00f4ng ngh\u1ec7 VVA l\u00e0 g\u00ec?\">C\u00f4ng ngh\u1ec7 VVA l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cong-nghe-bien-thien-vva\/#Cau_tao_va_nguyen_ly_hoat_dong_cua_van_VVA\" title=\"C\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed3ng c\u1ee7a van VVA\u00a0\">C\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed3ng c\u1ee7a van VVA\u00a0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.okxe.vn\/blog\/ky-thuat-xe\/cong-nghe-bien-thien-vva\/#Uu_nhuoc_diem_cua_cong_nghe_bien_thien_VVA\" title=\"\u01afu nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA\">\u01afu nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA<\/a><\/li><\/ul><\/nav><\/div>\n<p>T\u1eeb sau khi Yamaha Exciter xu\u1ea5t hi\u1ec7n v\u1edbi c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA. \u0110\u00e3 kh\u00f4ng \u00edt ng\u01b0\u1eddi t\u00f2 m\u00f2 <strong>VVA l\u00e0 g\u00ec<\/strong>? Li\u1ec7u c\u00f4ng ngh\u1ec7 VVA c\u00f3 th\u1ef1c s\u1ef1 t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3. C\u00f9ng t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi qua nh\u1eefng chia s\u1ebb d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tong_quan_ve_cong_nghe_bien_thien_VVA\"><\/span><strong>T\u1ed5ng quan v\u1ec1 c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Cong_nghe_VVA_la_gi\"><\/span><strong>C\u00f4ng ngh\u1ec7 VVA l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f4ng ngh\u1ec7 VVA \u0111\u00e3 t\u1eebng xu\u1ea5t hi\u1ec7n tr\u00ean d\u00f2ng xe R15 V3. V\u00e0 \u0111\u01b0\u1ee3c nhi\u1ec1u anh em \u0111\u00e1nh gi\u00e1 l\u00e0 \u201cb\u00e1 \u0111\u1ea1o\u201d. V\u00e0 c\u00f4ng ngh\u1ec7 n\u00e0y th\u1ef1c s\u1ef1 g\u00e2y \u0111\u01b0\u1ee3c ti\u1ebfng vang l\u1edbn t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. Khi \u0111\u01b0\u1ee3c Yamaha \u00e1p d\u1ee5ng tr\u00ean Exciter 155. Ngay l\u1eadp t\u1ee9c, c\u1ee5m t\u1eeb \u201c<strong>VVA l\u00e0 g\u00ec<\/strong>?\u201d \u0111\u01b0\u1ee3c t\u00ecm ki\u1ebfm kh\u1eafp n\u01a1i.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh5.googleusercontent.com\/FrRMVLueSVQ23w0JDpyOqhlSZWg2EkaZhZdPLUJXAnxM8lHpKfb5YcuRw-_43erDUygB2wiyEhabeMWg7p5HTXhc4vAfCyTJBUPHJgS0KpSfw95XA_EDXuWyYvVgaux5l1rixa3a\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>T\u1ed5ng quan v\u1ec1 c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA<\/p>\n<p>VVA v\u1edbi t\u00ean vi\u1ebft t\u1eaft Variable Valve Actuation, \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 c\u00f4ng ngh\u1ec7 van bi\u1ebfn thi\u00ean, \u0111\u01b0\u1ee3c Yamaha nghi\u00ean c\u1ee9u v\u00e0 cho ra \u0111\u1eddi nh\u1eb1m m\u1ee5c \u0111\u00edch c\u1ea3i thi\u1ec7n cho nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 SOHC b\u1eb1ng c\u00e1ch l\u00e0m thay \u0111\u1ed5i th\u1eddi gian \u0111\u00f3ng\/m\u1edf c\u1ee7a van n\u1ea1p.<\/p>\n<p>C\u1ee5 th\u1ec3, khi ch\u1ea1y ch\u1eadm, \u1edf gi\u1ea3i tua m\u00e1y th\u1ea5p, t\u1eeb 6000 v\u00f2ng\/ph\u00fat tr\u1edf xu\u1ed1ng. C\u00f4ng ngh\u1ec7 VVA s\u1ebd gi\u00fap cho \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng nh\u1eb1m ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/5B2sbpr8GKHQeJpCxTyvBKDXAgnKgcGQZGjAkQrRDDNfPceer15jge7kfhL-uaI7MVL2IU68YzzkV9XZNU-dA2DKaRZOZxiPN6pIZu2s1JJuj444v-iYO3ZapLTOXobIqzb2K687\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>Ch\u1ee9c n\u0103ng c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA<\/p>\n<p>Khi \u1edf v\u00f2ng tua cao, tr\u00ean 6000 v\u00f2ng\/ph\u00fat, l\u00fac n\u00e0y c\u00f4ng ngh\u1ec7 van bi\u1ebfn thi\u00ean VVA s\u1ebd gi\u00fap cho van n\u1ea1p \u0111\u1ea9y s\u00e2u h\u01a1n v\u00e0 l\u00e2u h\u01a1n \u0111\u1ec3 nhi\u00ean li\u1ec7u v\u00e0o nhi\u1ec1u h\u01a1n. \u0110\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c t\u0103ng s\u1ee9c m\u1ea1nh khi ch\u1ea1y \u1edf tua m\u00e1y cao.<\/p>\n<p>T\u00f3m l\u1ea1i, c\u00f4ng ngh\u1ec7 n\u00e0y gi\u00fap cho xe ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 \u1edf c\u1ea3 t\u1ed1c \u0111\u1ed9 th\u1ea5p l\u1eabn t\u1ed1c \u0111\u1ed9 cao. Cho xe c\u00f3 kh\u1ea3 n\u0103ng t\u0103ng t\u1ed1c m\u01b0\u1ee3t m\u00e0 v\u00e0 b\u1ee9t ph\u00e1 m\u1ea1nh m\u1ebd \u0111em \u0111\u1ebfn c\u1ea3m gi\u00e1c ph\u1ea5n kh\u00edch khi t\u0103ng ga.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cau_tao_va_nguyen_ly_hoat_dong_cua_van_VVA\"><\/span><strong>C\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed3ng c\u1ee7a van VVA\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ec3 hi\u1ec3u ch\u00ednh x\u00e1c v\u00e0 \u201ctr\u1ecdn v\u1eb9n\u201d h\u01a1n v\u1ec1 <strong>VVA l\u00e0 g\u00ec<\/strong>. B\u1ea1n nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i bi\u1ebft c\u1ea5u t\u1ea1o c\u0169ng nh\u01b0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n<p>Van bi\u1ebfn thi\u00ean VVA c\u00f3 t\u1ea5t c\u1ea3 3 c\u00e2y c\u00f2 thay v\u00ec 2 nh\u01b0 b\u00ecnh th\u01b0\u1eddng. Trong \u0111\u00f3, 1 c\u00e2y ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111\u00f3ng &#8211; m\u1edf 2 van x\u1ea3. 2 c\u00e2y c\u00f2n l\u1ea1i \u0111\u00f3ng vai tr\u00f2 \u0111i\u1ec1u khi\u1ec3n \u0111\u00f3ng m\u1edf 2 van n\u1ea1p.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/zJTXmvMX4uJrBD9SmKTYSy0Y9tgATcdlDWSMMBW2bVct7DRMJOhoLsj6ybzvJqS6g2ED-SnIh095fodXTif9wPqyy9XX3dl9ZJ1HeMtbz3KIlMHJuvMNnn1x_US9rWkzI6AnDdHU\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>C\u1ea5u t\u1ea1o c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t<\/p>\n<p>C\u1ee5 th\u1ec3 h\u01a1n, 2 c\u00f2 m\u1ed5 \u0111\u1ed9c l\u1eadp n\u00e0y, 1 c\u00f2 m\u1ed5 ch\u00ednh n\u1ed1i v\u1edbi 2 xupap \u1edf c\u1eeda n\u1ea1p. \u0110\u1eb7c bi\u1ec7t, 2 c\u00f2 m\u1ed5 n\u00e0y l\u0103n tr\u00ean 2 g\u00f3i cam kh\u00e1c nhau, c\u00f2 m\u1ed5 ch\u00ednh l\u0103n v\u1edbi g\u1ed1i cam th\u1ea5p h\u01a1n, c\u00f2n c\u00f2 m\u1ed5 ph\u1ee5 l\u0103n v\u1edbi g\u1ed1i cam cao h\u01a1n.<\/p>\n<p>Khi xe ch\u1ea1y ch\u1eadm, \u1edf d\u00e3i 6000 v\u00f2ng\/ph\u00fat. C\u00f2 \u1edf g\u1ed1i cam th\u1ea5p h\u01a1n s\u1ebd ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng nh\u1eb1m ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh5.googleusercontent.com\/yewnyCGWoh2-Ei8tOkPArcQQwRFlBo88CP7CHcxJzIQ2ISu2GTYhqE326k9LRxGqPOgyteaddGIihG-0-IUmCafIZ4Jg8KsZlawzmVqaTDDx2SQ7V39YY7qkcXRaYoTs6s3sBAvu\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng ngh\u1ec7 VVA<\/p>\n<p>Nh\u01b0ng khi xe \u1edf v\u00f2ng tua t\u1eeb 6000 v\u00f2ng\/ph\u00fat tr\u1edf l\u00ean, c\u00e2y l\u1eaby (m\u00e0u \u0111\u1ecf) \u0111\u01b0\u1ee3c \u0111\u1ea9y b\u1edfi motor \u0111i\u1ec7n n\u1ed1i gi\u1eefa 2 c\u00e2y c\u00f2 t\u00e1c \u0111\u1ed9ng, n\u1ed1i li\u1ec1n 2 c\u00e2y c\u00f2 l\u1ea1i v\u1edbi nhau th\u00e0nh 1 kh\u1ed1i, \u0111\u1ec3 ch\u00fang c\u00f9ng ch\u1ea1y. Khi \u0111\u00f3, van \u0111\u01b0\u1ee3c \u0111\u1ea9y s\u00e2u h\u01a1n gi\u00fap l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u \u0111\u01b0\u1ee3c b\u1ed5 sung nhi\u1ec1u h\u01a1n. T\u1eeb \u0111\u00f3, xe ho\u1ea1t \u0111\u1ed9ng m\u1ea1nh h\u01a1n h\u1eb3n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Uu_nhuoc_diem_cua_cong_nghe_bien_thien_VVA\"><\/span><strong>\u01afu nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ea1n c\u00f3 bi\u1ebft, Yamaha lu\u00f4n l\u1ef1a ch\u1ecdn kh\u1ed1i \u0111\u1ed9ng c\u01a1 SOHC thay v\u00ec l\u00e0 DOHC. B\u1edfi s\u1ef1 g\u1ecdn nh\u1eb9 \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean h\u00e0ng \u0111\u1ea7u. Tuy nhi\u00ean, nh\u01b0 c\u00e1c b\u1ea1n \u0111\u00e3 bi\u1ebft, m\u1eb7c d\u00f9 SOHC cho \u201cn\u01b0\u1edbc \u0111\u1ec1\u201d r\u1ea5t t\u1ed1t nh\u01b0ng \u201cn\u01b0\u1edbc h\u1eadu\u201d l\u1ea1i kh\u00e1 \u0111u\u1ed1i, c\u1ee5 th\u1ec3 l\u00e0 khi so s\u00e1nh v\u1edbi DOHC.<\/p>\n<p>Ch\u00ednh v\u00ec v\u1eady, van bi\u1ebfn thi\u00ean VVA ch\u00ednh l\u00e0 \u201cc\u1ee9u tinh\u201d cho d\u00f2ng \u0111\u1ed9ng c\u01a1 SOHC, gi\u00fap \u0111\u1ed9ng c\u01a1 ph\u00e1t huy t\u00e1c d\u1ee5ng t\u1ed1t khi \u1edf v\u00f2ng tua 6000 v\u00f2ng\/ph\u00fat tr\u1edf l\u00ean, n\u00f3i theo c\u00e1ch anh em ch\u00ednh l\u00e0 \u201cv\u1eeba n\u01b0\u1edbc \u0111\u1ec1, v\u1eeba n\u01b0\u1edbc h\u1eadu\u201d.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/tLALoerbQKelPhMK5i44XjS-q91C-A0E5b2JoAzoYI34b1ZAVMwbNV-7dcFAjZUbCCkfqtxDR16H9Qs6Gsx80AuexHkA33XunH5uoCF9nZDEEJSFuCpyciXx-hUwBsfgIiQ6C-wZ\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>\u01afu \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA ban n\u00ean bi\u1ebft<\/p>\n<p>C\u00f3 th\u1ec3 n\u00f3i, Yamaha s\u1edf h\u1eefu c\u00f4ng ngh\u1ec7 VVA ch\u00ednh l\u00e0 m\u1ed9t \u0111i\u1ec3m m\u1ea1nh \u0111\u1ec3 n\u00f3 c\u1ea1nh tranh v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u kh\u00e1c tr\u00ean th\u1ecb tr\u01b0\u1eddng. Th\u1ef1c t\u1ebf ch\u1ee9ng minh, Yamaha \u0111ang \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 van bi\u1ebfn thi\u00ean ng\u00e0y c\u00e0ng nhi\u1ec1u cho c\u00e1c m\u1eabu xe nh\u01b0 Yamaha NMX 155, Yamaha NVX 155 2017, Yamaha Exciter 155cc.<\/p>\n<h6>B\u00ean c\u1ea1nh nh\u1eefng \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i. Nhi\u1ec1u ng\u01b0\u1eddi c\u0169ng th\u1eafc m\u1eafc, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean <strong>VVA l\u00e0 g\u00ec<\/strong>?<\/h6>\n<p>Theo t\u00ecm hi\u1ec3u, c\u00f4ng ngh\u1ec7 VVA ch\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng cho nh\u1eefng s\u1ea3n ph\u1ea9m c\u00f3 dung t\u00edch t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn, c\u00f9ng v\u1edbi \u0111\u00f3 l\u00e0 gi\u00e1 th\u00e0nh kh\u00e1 cao. Nguy\u00ean nh\u00e2n c\u00f3 l\u1ebd l\u00e0 do vi\u1ec7c l\u1eafp \u0111\u1eb7t ti\u00eau t\u1ed1n kh\u00e1 nhi\u1ec1u chi ph\u00ed, \u0111\u1ed3ng th\u1eddi m\u1ea5t nhi\u1ec1u c\u00f4ng s\u1ee9c cho qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n.<\/p>\n<p><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/KBC_arrZPxy7SziZSUJEnQTvsBCim28Ta-sBbK1jWApJKnILAZ008_IMvKc7rjsNhqUGcRj0XbcIHGch6CxYKhatM8KmZ4bIFdQerbqkYVBJiSiS_WW__7rSotyVS_F9Ez7FMYff\" width=\"600\" height=\"400\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/400;\" \/><\/p>\n<p>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA l\u00e0 g\u00ec?<\/p>\n<p>Ngo\u00e0i, vi\u1ec7c c\u00f4ng ngh\u1ec7 VVA ho\u1ea1t \u0111\u1ed9ng \u1edf d\u1ea3i t\u1ed1c \u0111\u1ed9 cao gi\u00fap xe l\u1ea5y nhi\u1ec1u nguy\u00ean li\u1ec7u h\u01a1n, c\u0169ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c xe s\u1ebd ti\u00eau t\u1ed1n nhi\u1ec1u nhi\u00ean li\u1ec7u h\u01a1n, n\u00f3i d\u1ec5 hi\u1ec3u l\u00e0 hao x\u0103ng h\u01a1n b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>V\u1edbi nh\u1eefng l\u1ee3i \u00edch m\u00e0 VVA mang l\u1ea1i, c\u00f4ng ngh\u1ec7 van bi\u1ebfn thi\u00ean n\u00e0y th\u1eadt s\u1ef1 l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf c\u1ee7a h\u00e3ng Yamaha khi ch\u1ec9 chuy\u00ean d\u00f9ng kh\u1ed1i \u0111\u1ed9ng c\u01a1 SOHC. C\u1ee5 th\u1ec3 ngay khi r\u00f2 r\u1ec9 th\u00f4ng tin Exciter 155cc s\u1ebd ra m\u1eaft v\u1edbi c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c nhi\u1ec1u anh em \u201c\u0111\u1ee9ng ng\u1ed3i kh\u00f4ng y\u00ean\u201d<\/p>\n<p>B\u00e0i vi\u1ebft tr\u00ean l\u00e0 m\u1ed9t s\u1ed1 chia s\u1ebb v\u1ec1 <strong>VVA l\u00e0 g\u00ec<\/strong>. Hy v\u1ecdng nh\u1eefng th\u00f4ng tin tr\u00ean s\u1ebd th\u1eadt s\u1ef1 th\u00fa v\u1ecb v\u00e0 b\u1ed5 \u00edch v\u1edbi c\u00e1c b\u1ea1n \u0111\u1ecdc nh\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb sau khi Yamaha Exciter xu\u1ea5t hi\u1ec7n v\u1edbi c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA. \u0110\u00e3 kh\u00f4ng \u00edt ng\u01b0\u1eddi t\u00f2 m\u00f2 VVA l\u00e0 g\u00ec? Li\u1ec7u c\u00f4ng ngh\u1ec7 VVA c\u00f3 th\u1ef1c s\u1ef1 t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3. C\u00f9ng t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi qua nh\u1eefng chia s\u1ebb d\u01b0\u1edbi \u0111\u00e2y. T\u1ed5ng quan v\u1ec1 c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA\u00a0 C\u00f4ng ngh\u1ec7 VVA [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":13543,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[161],"tags":[1117],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v20.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>c\u00f4ng ngh\u1ec7 bi\u1ebfn thi\u00ean VVA<\/title>\n<meta name=\"description\" content=\"V\u1edbi nh\u1eefng ai m\u00ea d\u00f2ng xe Yamaha Exciter th\u00ec ch\u1eafc h\u1eb3n s\u1ebd bi\u1ebft \u0111\u1ebfn c\u00f4ng ngh\u1ec7 VVA. 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