{"id":5525,"date":"2025-07-23T14:33:41","date_gmt":"2025-07-23T06:33:41","guid":{"rendered":"https:\/\/www.key-iot.com\/?p=5525"},"modified":"2025-07-24T09:17:57","modified_gmt":"2025-07-24T01:17:57","slug":"automotive-ethernet-explosion-tsn-switch-chips-become-new-engine","status":"publish","type":"post","link":"https:\/\/www.key-iot.com\/fr\/blog\/automotive-ethernet-explosion-tsn-switch-chips-become-new-engine\/","title":{"rendered":"Explosion de l'Ethernet dans l'automobile : Les puces de commutation TSN deviennent un nouveau moteur"},"content":{"rendered":"<p><img decoding=\"async\" class=\"size-full wp-image-5526 aligncenter\" title=\"2086ff0a0491018a18e11d1c475e56dd\" src=\"https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/2086ff0a0491018a18e11d1c475e56dd.png\" alt=\"2086ff0a0491018a18e11d1c475e56dd\" width=\"739\" height=\"262\" srcset=\"https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/2086ff0a0491018a18e11d1c475e56dd.png 739w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/2086ff0a0491018a18e11d1c475e56dd-300x106.png 300w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/2086ff0a0491018a18e11d1c475e56dd-18x6.png 18w, https:\/\/www.key-iot.com\/wp-content\/uploads\/2025\/07\/2086ff0a0491018a18e11d1c475e56dd-600x213.png 600w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/p>\n<h2>1. D\u00e9veloppement de l'architecture \u00e9lectronique et \u00e9lectrique<\/h2>\n<p>En 2020, lorsque nous avons discut\u00e9 de l'architecture \u00e9lectronique et \u00e9lectrique (AEE) de l'automobile, nous parlions encore de passer d'une architecture distribu\u00e9e \u00e0 une architecture de contr\u00f4le de domaine. L'architecture unit\u00e9 centrale de calcul + contr\u00f4leur de zone semblait loin d'\u00eatre atteinte. Selon la d\u00e9finition de Bosch des \u00e9tapes de d\u00e9veloppement de l'AEE, il restait encore plus de cinq ans \u00e0 parcourir. Cependant, quatre ans plus tard, nous constatons que les architectures d'unit\u00e9 centrale de calcul de divers \u00e9quipementiers sont toutes sur le point d'arriver, comme la plateforme centrale de calcul X-EEA3.0 de XPeng + l'architecture de contr\u00f4le de zone, l'architecture de plateforme centrale de calcul de GAC Aion - Xingling Architecture, l'architecture de plateforme de calcul GEEP3.0 de Great Wall, et l'architecture LEEA3.0 de Li Auto.<\/p>\n<h2>2. Ethernet comme dorsale de communication automobile<\/h2>\n<p>L'it\u00e9ration rapide de l'architecture \u00e9lectronique et \u00e9lectrique s'accompagne de la convergence des r\u00e9seaux de communication des v\u00e9hicules. \u00c0 partir de l'architecture de contr\u00f4le de domaine, l'utilisation d'Ethernet comme r\u00e9seau de base pour la communication automobile est devenue un consensus parmi les \u00e9quipementiers. XPeng G9 adopte l'Ethernet gigabit comme architecture de communication X-CA du r\u00e9seau de base, et l'architecture CC de Wenjie M9 utilise l'Ethernet comme r\u00e9seau de base. L'Ethernet automobile est une technologie de r\u00e9seau local sp\u00e9cialement con\u00e7ue pour les environnements automobiles. Il est bas\u00e9 sur les protocoles Ethernet traditionnels, mais optimis\u00e9 et adapt\u00e9 aux besoins sp\u00e9cifiques des r\u00e9seaux internes des v\u00e9hicules.compar\u00e9 \u00e0 d'autres technologies, l'Ethernet automobile pr\u00e9sente les avantages suivants :<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Bande passante \u00e9lev\u00e9e : offre des capacit\u00e9s de transmission de donn\u00e9es \u00e0 large bande passante pour r\u00e9pondre aux applications \u00e0 volume de donn\u00e9es \u00e9lev\u00e9 telles que la conduite autonome et la transmission de vid\u00e9os HD.<\/li>\n<li>Faible latence : Essentiel pour les applications en temps r\u00e9el telles que la r\u00e9ponse rapide des syst\u00e8mes de conduite autonome.<\/li>\n<li>Haute fiabilit\u00e9 : Gr\u00e2ce \u00e0 l'optimisation de la couche physique et de la couche de liaison, la fiabilit\u00e9 du r\u00e9seau est am\u00e9lior\u00e9e dans les environnements \u00e9lectromagn\u00e9tiques complexes de l'automobile.<\/li>\n<li>Rentabilit\u00e9 : Par rapport au c\u00e2blage multi-harnais traditionnel, la transmission par paires torsad\u00e9es permet de r\u00e9duire le poids et le co\u00fbt du harnais tout en simplifiant le c\u00e2blage.<\/li>\n<li>\u00c9volutivit\u00e9 : Prend en charge diff\u00e9rentes normes de vitesse telles que 100BASE-T1, 1000BASE-T1, permettant des taux de transmission appropri\u00e9s pour diff\u00e9rentes applications.<\/li>\n<li>Normalisation : Promue par de nombreuses organisations de normalisation, dont l'IEEE, elle garantit une bonne compatibilit\u00e9 et une bonne interop\u00e9rabilit\u00e9.<\/li>\n<\/ul>\n<h2>3. Principales puces pour l'Ethernet automobile<\/h2>\n<p>Les puces cl\u00e9s n\u00e9cessaires \u00e0 l'Ethernet automobile comprennent principalement les puces \u00e9mettrices-r\u00e9ceptrices de la couche physique (PHY) et les puces de commutation TSN .puces PHY : Peuvent \u00eatre compar\u00e9es aux stations de base des signaux, mettant en \u0153uvre les fonctions de la couche physique Ethernet, charg\u00e9es de convertir les signaux num\u00e9riques en signaux adapt\u00e9s \u00e0 la transmission sur support physique et d'effectuer le codage\/d\u00e9codage correspondant.puces de commutation : Les puces de commutation peuvent \u00eatre compar\u00e9es \u00e0 des concentrateurs de trafic, servant de noyau de commutation de r\u00e9seau, responsables de l'acheminement des paquets de donn\u00e9es entre diff\u00e9rents n\u0153uds de r\u00e9seau pour une transmission efficace des donn\u00e9es.les fonctions principales des puces de commutation comprennent :<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>\u00c9change et gestion de donn\u00e9es<\/li>\n<li>Contr\u00f4le du trafic<\/li>\n<li>Support TSN pour les r\u00e9seaux sensibles au facteur temps<\/li>\n<li>D\u00e9termination de la structure de la topologie du r\u00e9seau<\/li>\n<li>Influence des goulets d'\u00e9tranglement sur les performances<\/li>\n<li>Fonctions de s\u00e9curit\u00e9 du r\u00e9seau<\/li>\n<\/ul>\n<h2>4. Valeur et taille du march\u00e9 des v\u00e9hicules individuels<\/h2>\n<p>Avec l'\u00e9volution constante de l'architecture \u00e9lectronique automobile, la demande de puces Ethernet a explos\u00e9. Les v\u00e9hicules de niveau L4 devraient embarquer plus de 100 puces Ethernet, dont 12 cam\u00e9ras + 4 \u00e9crans, plus 7 puces de commutation TSN et autres, ce qui portera la valeur des puces Ethernet pour un seul v\u00e9hicule \u00e0 $700.Selon les pr\u00e9visions de l'Ethernet Alliance, d'ici 2025, le march\u00e9 chinois des puces Ethernet atteindra 30 milliards de yuans, ce qui en fait la r\u00e9gion connaissant la plus forte croissance. Les donn\u00e9es du China Automotive Technology Research Center et de Shanxi Securities pr\u00e9voient que d'ici 2025, la taille du march\u00e9 national des puces PHY Ethernet pour l'automobile d\u00e9passera 12 milliards de yuans RMB, avec un taux de croissance annuel moyen sup\u00e9rieur \u00e0 30%. La taille du march\u00e9 des puces de commutation atteindra 17,8 milliards de yuans RMB.<\/p>\n<h2>5. Paysage concurrentiel de l'Ethernet automobile<\/h2>\n<p>Les fournisseurs actuels de puces PHY Ethernet pour l'automobile pr\u00e9sentent des sch\u00e9mas tr\u00e8s concentr\u00e9s, principalement domin\u00e9s par des soci\u00e9t\u00e9s \u00e9trang\u00e8res telles que Marvell, Broadcom, NXP et TI, avec une part de march\u00e9 combin\u00e9e de 99%. Les fournisseurs nationaux de puces PHY ne sont que quelques-uns, comme Yutaiwei, Jinglue et Yitaiwei. Pour les puces de commutation, les fournisseurs sont encore plus concentr\u00e9s, avec seulement deux entreprises am\u00e9ricaines : Marvell et Broadcom : Marvell et Broadcom. Les obstacles techniques au d\u00e9veloppement des puces de commutation sont les suivants :<\/p>\n<ul class=\"list-paddingleft-2\">\n<li>Accumulation de communications : N\u00e9cessite des lignes de produits compl\u00e8tes et des \u00e9quipes exp\u00e9riment\u00e9es<\/li>\n<li>Obstacles techniques : La technologie TSN n\u00e9cessite une synchronisation temporelle et un ordonnancement des donn\u00e9es complexes, prenant en charge plusieurs normes de protocole telles que IEEE 802.1q, 802.1qbu, 802.1qbv, etc.<\/li>\n<\/ul>\n<p>6. L'avenir de l'Ethernet automobile<\/p>\n<p>D'apr\u00e8s les progr\u00e8s actuels de NVIDIA, les domaines ADAS utilisent g\u00e9n\u00e9ralement une puce de commutation Ethernet, tandis que les syst\u00e8mes ADAS avanc\u00e9s utilisent 2 \u00e0 3 puces. Dans l'\u00e8re du zonage ou de l'informatique centrale (\u00e8re du v\u00e9hicule d\u00e9fini par logiciel), davantage de puces de commutation Ethernet seront utilis\u00e9es, chaque v\u00e9hicule n\u00e9cessitant 6 \u00e0 7 puces. D'apr\u00e8s le dernier rapport de QY Research, la taille du march\u00e9 mondial de l'Ethernet automobile devrait atteindre $21,06 milliards d'euros d'ici 2029. La Chine \u00e9tant \u00e0 la pointe de l'intelligence automobile mondiale, cette voie nourrira de nombreuses soci\u00e9t\u00e9s cot\u00e9es en bourse.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>1. Electronic and Electrical Architecture Development In 2020, when we discussed automotive Electronic and Electrical Architecture (EEA), we were still talking about upgrading from distributed architecture to domain control architecture. The central computing unit + zone controller architecture seemed far out of reach\u00a0.According to Bosch&#8217;s definition of EEA development stages, there were still more than [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5527,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[16],"tags":[83],"class_list":["post-5525","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-automotive-ethernet"],"metadata":{"classic-editor-remember":["classic-editor"],"_edit_lock":["1753320079:1"],"_edit_last":["1"],"_thumbnail_id":["5527"],"themepark_seo_title":["Automotive Ethernet Explosion: TSN Switch Chips Become New Engine"],"themepark_seo_description":["In 2020, when we discussed automotive Electronic and Electrical Architecture (EEA), we were still talking about upgrading from distributed architecture to domain control architecture. The central computing unit + zone controller architecture seemed far out of reach\u00a0."],"themepark_seo_keyword":["Automotive Ethernet"],"catce":["sidebar-widgets4"],"_yoast_wpseo_primary_category":["16"],"_yoast_wpseo_content_score":["90"],"_yoast_wpseo_estimated-reading-time-minutes":["5"],"views":["10607"],"_yoast_wpseo_metadesc":["In 2020, when we discussed automotive Electronic and Electrical Architecture (EEA), we were still talking about upgrading from distributed architecture to domain control architecture. The central computing unit + zone controller architecture seemed far out of reach\u00a0."]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Automotive Ethernet Explosion: TSN Switch Chips Become New Engine - KEY-IOT<\/title>\n<meta name=\"description\" content=\"In 2020, when we discussed automotive Electronic and Electrical Architecture (EEA), we were still talking about upgrading from distributed architecture to domain control architecture. 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