Doppia Frizione 201671

sezione in aggiornamento

Il Dual Clutch Transmission (cambio a doppia frizione), o “DCT”, è così chiamato per la presenza di due frizioni separate collegate a due alberi coassiali. Su uno degli alberi sono montati gli ingranaggi dei rapporti dispari e sull’altro gli ingranaggi di quelli pari (1,3 e 5 su uno e 2,4 e 6 sull’altro nel caso del cambio a 6 rapporti). La retromarcia, montata su uno dei 2 alberi, è provvista di un albero per l’inversione del senso della rotazione. Con questo tipo di frizione il lavoro della trasmissione viene sdoppiato e suddiviso sulle due coppie di frizioni ed alberi, accorciando i tempi di cambiata, permettendo accelerazioni più rapide e di avere un motore sempre in coppia. In questo modo si hanno dei vantaggi in termini di fluidità nella trasmissione della potenza poiché il motore subisce variazioni di regime molto più contenute aumentando notevolmente il confort. Ad oggi tutte le principali case costruttrici adottano questo tipo di tecnologia. Le frizioni dell'auto sono vitali per la trasmissione, in quanto controllano la potenza del motore e la velocità del veicolo. Collegano/discollegano motore e c [...]

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