{"id":87672,"date":"2025-09-19T11:21:12","date_gmt":"2025-09-19T15:21:12","guid":{"rendered":"https:\/\/mayahtt.com\/blog\/chasing-400-kmh-how-fast-will-the-2026-f1-cars-be\/"},"modified":"2025-10-02T09:37:29","modified_gmt":"2025-10-02T13:37:29","slug":"400-kmh-les-f1-2026-peuvent-elles-y-arriver","status":"publish","type":"post","link":"https:\/\/www.mayahtt.com\/fr\/blog\/400-kmh-les-f1-2026-peuvent-elles-y-arriver\/","title":{"rendered":"400 km\/h en ligne de mire : les F1 2026 peuvent-elles y arriver ?"},"content":{"rendered":"<p>Nouvelles r\u00e8gles de ch\u00e2ssis, a\u00e9rodynamique active \u00e0 deux modes et groupe motopropulseur hybride r\u00e9\u00e9quilibr\u00e9 (environ 50\/50 entre thermique et \u00e9lectrique) : autant de points d\u2019interrogation pour la saison 2026 de F1. Sur papier, la puissance totale avoisine les 1 000 chevaux, avec Toto Wolff affirmant que la nouvelle g\u00e9n\u00e9ration de voitures d\u00e9passera les 400 km\/h.<\/p>\n<p>L\u2019\u00e9quipe des services de simulation de Maya HTT a construit un mod\u00e8le CAO simplifi\u00e9, pr\u00eat pour la CFD, bas\u00e9 sur les r\u00e8glements techniques 2026, r\u00e9alis\u00e9 des simulations RANS et converti les coefficients a\u00e9rodynamiques obtenus en estimations de vitesse de pointe. La r\u00e9ponse se d\u00e9compose en deux volets : la limite physique th\u00e9orique et le cas r\u00e9aliste impos\u00e9 par la r\u00e9glementation.<\/p>\n<p><a href=\"https:\/\/mayahtt.com\/fr\/services\/\"><strong>D\u00e9couvrez-le<\/strong> : voyez comment notre \u00e9quipe de services de simulation aide les clients \u00e0 atteindre de meilleures performances en moins de temps<\/a>.<\/p>\n<h2>Des r\u00e8glements \u00e0 la g\u00e9om\u00e9trie<\/h2>\n<p>Nous avons traduit les r\u00e8glements techniques FIA 2026 <a href=\"https:\/\/www.fia.com\/system\/files\/documents\/fia_2026_f1_regulations_-_section_c_technical_-_iss_13_-_2025-07-31.pdf\">[1]<\/a> en un mod\u00e8le CAO simplifi\u00e9 et pr\u00eat pour la CFD en utilisant les outils de surfacique NX. Il int\u00e8gre les nouveaux syst\u00e8mes d\u2019aileron avant et arri\u00e8re ainsi que leur transition entre modes virage et ligne droite, certaines pi\u00e8ces \u00e9tant omises pour l\u2019instant.<\/p>\n<p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/X3wfVlp_D-A?si=ndbh9XNm2sNjZBSK\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><br \/>\n<em>Figure 1 : Cr\u00e9ation de la g\u00e9om\u00e9trie dans Siemens NX<\/em><\/p>\n<p>Alors que les r\u00e8gles sur l\u2019a\u00e9rodynamique active de l\u2019aileron arri\u00e8re sont assez simples et imposent une rotation autour d\u2019un axe Y contenu dans le volume de l\u00e9galit\u00e9 des profils de l\u2019aileron, la g\u00e9om\u00e9trie de l\u2019aileron avant a d\u00fb \u00eatre soigneusement ajust\u00e9e afin de permettre \u00e0 la partie active de couvrir toute l\u2019envergure. Les deux ailerons seront autoris\u00e9s \u00e0 s\u2019ouvrir selon des rep\u00e8res sur la piste, permettant de passer du mode ligne droite au mode virage, et vice versa. Cette possibilit\u00e9 sera disponible ind\u00e9pendamment de l\u2019\u00e9cart avec la voiture de devant (contrairement au DRS actuel), et un mode suppl\u00e9mentaire dit <em>override<\/em> (expliqu\u00e9 ci-dessous) viendra faciliter les d\u00e9passements.<\/p>\n<div id=\"attachment_87665\" style=\"width: 594px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-87665\" class=\"wp-image-87665 \" src=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/DRSRender.webp\" alt=\"Figure 2: Straight line and corner mode\" width=\"584\" height=\"352\" \/><p id=\"caption-attachment-87665\" class=\"wp-caption-text\"><em>Figure 2 : Mode ligne droite et mode virage<\/em><\/p><\/div>\n<h2>CFD et r\u00e9sultats a\u00e9rodynamiques<\/h2>\n<p>Des simulations RANS stationnaires ont \u00e9t\u00e9 men\u00e9es avec la voiture dans les deux modes a\u00e9rodynamiques, selon les meilleures pratiques. Les champs d\u2019\u00e9coulement ont \u00e9t\u00e9 post-trait\u00e9s pour extraire les coefficients et visualiser les structures de sillage et d\u2019h\u00e9licit\u00e9. De futurs articles d\u00e9tailleront davantage la configuration CFD.<\/p>\n<div id=\"attachment_87657\" style=\"width: 783px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-87657\" class=\"size-full wp-image-87657\" src=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/cfd-mesh-surface-pressure-formula-1.jpg\" alt=\"Figures 3-8: CFD mesh, surface pressure coefficient, wake and helicity structures in corner and straight line mode\" width=\"773\" height=\"690\" srcset=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/cfd-mesh-surface-pressure-formula-1.jpg 773w, https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/cfd-mesh-surface-pressure-formula-1-480x428.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 773px, 100vw\" \/><p id=\"caption-attachment-87657\" class=\"wp-caption-text\"><em>Figures 3-8 : Maillage CFD, coefficient de pression de surface, sillage et structures d\u2019h\u00e9licit\u00e9 en modes virage et ligne droite<\/em><\/p><\/div>\n<p>Coefficients a\u00e9rodynamiques (coefficient \u00d7 surface) :<\/p>\n<ul>\n<li>Mode virage : CLA = 2.18, CDA = 0.88<\/li>\n<li>Mode ligne droite : CLA = 1.29, CDA = 0.69<\/li>\n<\/ul>\n<h2>Vitesse maximale : limite sup\u00e9rieure \u00e0 puissance constante<\/h2>\n<p>Nous commen\u00e7ons par supposer que le groupe motopropulseur peut d\u00e9livrer en continu ~1 000 ch (\u2248746 kW). En tenant compte d\u2019environ 15 % de pertes dans la transmission et divers auxiliaires, la puissance effective aux roues est :<\/p>\n<p><em>P_dispo \u2248 633 kW<\/em><\/p>\n<p>La puissance r\u00e9sistive est mod\u00e9lis\u00e9e par :<\/p>\n<p><em>P_tra\u00een\u00e9e = 0.5 * \u03c1 * CDA * V\u00b3<\/em><br \/>\n<em>P_roulement = Crr * (mg + 0.5\u03c1CLAV\u00b2) * V<\/em><\/p>\n<p>O\u00f9 :<\/p>\n<ul>\n<li>\u03c1 = 1.225 kg\/m\u00b3<\/li>\n<li>Crr = 0.012<\/li>\n<li>m = 800 kg<\/li>\n<\/ul>\n<p>R\u00e9solution de l\u2019\u00e9quilibre de puissance :<\/p>\n<ul>\n<li>Mode virage : Vmax \u2248 374 km\/h<\/li>\n<li>Mode ligne droite : Vmax \u2248 407 km\/h<\/li>\n<\/ul>\n<p>Ainsi, la <strong>physique pure sugg\u00e8re qu\u2019en mode ligne droite 2026, la voiture pourrait d\u00e9passer les 400 km\/h<\/strong>.<\/p>\n<h2>Vitesse de pointe : d\u00e9gressivit\u00e9 du d\u00e9ploiement ERS-K<\/h2>\n<p>Les r\u00e8glements techniques FIA 2026, Article C5.2.8, imposent des plafonds d\u00e9pendants de la vitesse pour le d\u00e9ploiement de l\u2019ERS-K :<\/p>\n<ul>\n<li>Mode de base :\n<ul>\n<li>P(kW) = 1800 &#8211; 5v (for v &lt; 340 km\/h)<\/li>\n<li>P(kW) = 6900 &#8211; 20v (for 340 \u2264 v &lt; 345 km\/h)<\/li>\n<li>P(kW) = 0 (for v \u2265 345 km\/h)<\/li>\n<\/ul>\n<\/li>\n<li>Mode Override (nouvelle aide au d\u00e9passement) :\n<ul>\n<li>P(kW)=7100-20*v(for v &lt; 355 km\/h)<\/li>\n<li>P(kW) = 0 (for v \u2265 355 km\/h)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>De plus, l\u2019ERS-K est plafonn\u00e9 \u00e0 350 kW et limit\u00e9 par des budgets d\u2019\u00e9nergie par tour.<\/p>\n<div id=\"attachment_87660\" style=\"width: 520px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-87660\" class=\"wp-image-87660\" src=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/Figure-9-ERS-K-DC-Power-vs-Speed-Baseline-and-Override-Mode.png\" alt=\"Figure 9: ERS-K DC Power vs Speed (Baseline and Override Mode)\" width=\"510\" height=\"340\" srcset=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/Figure-9-ERS-K-DC-Power-vs-Speed-Baseline-and-Override-Mode.png 510w, https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/Figure-9-ERS-K-DC-Power-vs-Speed-Baseline-and-Override-Mode-480x320.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 510px, 100vw\" \/><p id=\"caption-attachment-87660\" class=\"wp-caption-text\"><em>Figure 9 : Puissance \u00e9lectrique ERS-K en fonction de la vitesse (mode Baseline et Override)<\/em><\/p><\/div>\n<p>Cela signifie que la contribution \u00e9lectrique diminue avec la vitesse et dispara\u00eet enti\u00e8rement \u00e0 345 km\/h (355 km\/h en mode Override). Au-del\u00e0 de ces seuils, seule la puissance thermique contribue. R\u00e9alistiquement, on ne peut donc esp\u00e9rer que des vitesses l\u00e9g\u00e8rement sup\u00e9rieures lorsqu\u2019une voiture conserve son \u00e9lan ou b\u00e9n\u00e9ficie de l\u2019aspiration pour franchir la limite.<\/p>\n<h2>Conclusion<\/h2>\n<p>Deux perspectives \u00e9mergent :<\/p>\n<ul>\n<li><strong>Limite physique :<\/strong> ~407 km\/h si 1 000 ch pouvaient \u00eatre maintenus.<\/li>\n<li><strong>R\u00e9alit\u00e9 impos\u00e9e par la r\u00e9glementation :<\/strong> ~355 km\/h ou l\u00e9g\u00e8rement au-dessus en d\u00e9passement ou gr\u00e2ce \u00e0 l\u2019inertie.<\/li>\n<\/ul>\n<p>Cela explique pourquoi le \u00ab 400 km\/h \u00bb \u00e9voqu\u00e9 par Wolff ne se concr\u00e9tisera pas en conditions de course. La physique dit oui, mais la FIA dit non.<\/p>\n<p>Chez Maya HTT, nous transformons les id\u00e9es en concepts, et ces concepts en solutions d\u2019ing\u00e9nierie concr\u00e8tes. La conception pilot\u00e9e par la simulation, c\u2019est notre mani\u00e8re d\u2019\u00e9clairer les choix, de repousser les limites et d\u2019apporter des r\u00e9ponses claires aux questions les plus complexes. Si vous souhaitez d\u00e9couvrir comment la simulation peut acc\u00e9l\u00e9rer vos projets d\u2019ing\u00e9nierie, <a href=\"https:\/\/mayahtt.com\/fr\/about-maya-htt\/contact\/\">parlons-en ensemble<\/a>.<\/p>\n<p>Restez \u00e0 l\u2019affut : il s\u2019agit du premier d\u2019une s\u00e9rie d\u2019articles sur ces nouveaux r\u00e8glements techniques de la saison F1 2026.<\/p>\n<p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/hveWlWjLdow?si=QoczP_AT4Cj_rzdj\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><br \/>\n<em>Figure 10 : balayage des structures d\u2019h\u00e9licit\u00e9 en modes virage et ligne droite<\/em><\/p>\n<p><img decoding=\"async\" class=\" wp-image-87667 aligncenter\" src=\"https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/09\/RearRender-1024x615.jpg\" alt=\"Rear render of an F1 car\" width=\"543\" height=\"326\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nouvelles r\u00e8gles de ch\u00e2ssis, a\u00e9rodynamique active \u00e0 deux modes et groupe motopropulseur hybride r\u00e9\u00e9quilibr\u00e9 (environ 50\/50 entre thermique et \u00e9lectrique) : autant de points d\u2019interrogation pour la saison 2026 de F1. Sur papier, la puissance totale avoisine les 1 000 chevaux, avec Toto Wolff affirmant que la nouvelle g\u00e9n\u00e9ration de voitures d\u00e9passera les 400 km\/h. [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":87668,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[559,560,303],"tags":[],"class_list":["post-87672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-fr-fr","category-articles-fr-2","category-blogue"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>400 km\/h en ligne de mire : les F1 2026 peuvent-elles y arriver ? - Maya HTT<\/title>\n<meta name=\"description\" content=\"Voir comment l\u2019\u00e9quipe des services de simulation de Maya HTT a construit un mod\u00e8le CAO simplifi\u00e9, pr\u00eat pour la CFD, bas\u00e9 sur les r\u00e8glements techniques F1 2026, r\u00e9alis\u00e9 des simulations RANS et converti les coefficients a\u00e9rodynamiques obtenus en estimations de vitesse de pointe.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mayahtt.com\/fr\/blog\/400-kmh-les-f1-2026-peuvent-elles-y-arriver\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"400 km\/h en ligne de mire : les F1 2026 peuvent-elles y arriver ? 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