{"id":8131,"date":"2021-04-09T10:00:10","date_gmt":"2021-04-09T14:00:10","guid":{"rendered":"https:\/\/mmecanique360-wp-engine.local\/?post_type=blog&#038;p=8131"},"modified":"2024-10-24T18:49:35","modified_gmt":"2024-10-24T22:49:35","slug":"le-differentiel-un-mecanisme-lie-aux-virages","status":"publish","type":"blog","link":"https:\/\/mmecanique360.com\/fr\/blogue\/le-differentiel-un-mecanisme-lie-aux-virages\/","title":{"rendered":"Le diff\u00e9rentiel : ce m\u00e9canisme essentiel aux virages"},"content":{"rendered":"\n<p>Le diff\u00e9rentiel est un m\u00e9canisme reli\u00e9 \u00e0 la fois aux roues motrices d\u2019un v\u00e9hicule et \u00e0 son arbre de transmission. Il joue trois r\u00f4les&nbsp;: il transmet l\u2019\u00e9nergie du moteur aux roues, a une incidence sur le freinage et permet aux roues de tourner \u00e0 des vitesses diff\u00e9rentes.<\/p>\n\n\n\n<p>Un diff\u00e9rentiel classique est au moins compos\u00e9 d\u2019un engrenage (satellite) encadr\u00e9 de deux autres perpendiculaires (plan\u00e9taires), le tout plac\u00e9 dans une structure jointe \u00e0 un dernier engrenage (couronne). L\u2019arbre de transmission, gr\u00e2ce au moteur, entra\u00eene une force qui active la rotation de la couronne qui, \u00e0 son tour, transmet une puissance au satellite et permet, m\u00e9caniquement, de faire tourner les plan\u00e9taires (et donc les roues) selon des vitesses qui varient en fonction de la r\u00e9sistance rencontr\u00e9e.<\/p>\n\n\n\n<p>Concr\u00e8tement, si vous effectuez un virage \u00e0 gauche avec votre v\u00e9hicule, vos roues de droite devront parcourir une plus grande distance que celles \u00e0 l\u2019oppos\u00e9. Le diff\u00e9rentiel, gr\u00e2ce \u00e0 son syst\u00e8me d\u2019engrenages, transmet une plus grande vitesse aux roues qui adh\u00e8rent le moins, soit celles de droite, de sorte que votre virage soit le plus stable possible.<\/p>\n\n\n\n<p>Les v\u00e9hicules \u00e0 quatre roues motrices poss\u00e8dent trois diff\u00e9rentiels, soit un pour chaque paire de roues et un autre qui d\u00e9partage les roues avant de celles de derri\u00e8re, afin de circuler sur des terrains in\u00e9gaux. Un diff\u00e9rentiel d\u00e9fectueux ou trop us\u00e9 peut entra\u00eener de dangereux d\u00e9rapages. Pour savoir quand faire inspecter ce m\u00e9canisme, visitez votre atelier M M\u00e9canique 360!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le diff\u00e9rentiel est un m\u00e9canisme reli\u00e9 \u00e0 la fois aux roues motrices d\u2019un v\u00e9hicule et \u00e0 son arbre de transmission. Il joue trois r\u00f4les&nbsp;: il transmet l\u2019\u00e9nergie du moteur aux roues, a une incidence sur le freinage et permet aux roues de tourner \u00e0 des vitesses diff\u00e9rentes. Un diff\u00e9rentiel classique est au moins compos\u00e9 d\u2019un &hellip;<\/p>\n","protected":false},"author":6,"featured_media":8133,"template":"","meta":{"footnotes":""},"blog_category":[40],"class_list":["post-8131","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-mes-conseils-de-pro"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le diff\u00e9rentiel : ce m\u00e9canisme essentiel aux virages M M\u00e9canique 360 -<\/title>\n<meta name=\"description\" content=\"Le diff\u00e9rentiel sert essentiellement \u00e0 assurer la qualit\u00e9 de vos virages. 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