Patent ID: 7651432
Filing Date: 2010-01-26
Classification: F16H

Abstract:
1. A multi-stage automatic transmission comprising: a drive input shaft (AN); a drive output shaft (AB); a transfer gearset (VS); a main gearset (HS); and at least first, second, third, fourth, fifth and sixth shift elements (A, B, C, D, E, F); the transfer gearset (VS) being a double planetary gearset; an output element of the transfer gearset (VS) rotates at a rotational speed lower than a rotational input speed of the drive input shaft (AN); an input element of the transfer gearset (VS) being integral with the drive input shaft (AN); another element of the transfer gearset (VS) being coupled to a housing (GG) of the transmission; the main gearset (HS) being a coupled planetary gearset with a plurality of input elements and one output element, each of the plurality of input elements being uncoupled from a remainder of the plurality of input elements; the output element of the main gearset (HS) being integral with the drive output shaft (AB); an input element ( an output element ( an input element ( an output element ( an input element of the third shift element (C) being coupled to the transmission housing (GG); an output element ( an input element of the fourth shift element (D) being coupled to the transmission housing (GG); an output element ( an input element ( an output element ( an input ( an output element ( a structural group, comprising the second and the sixth shift elements (B, F), being substantially located on a side of the transfer gearset (VS) opposite the main gearset (HS), and a first side of the main gearset further comprising; a disk carrier of the second shift element (B) supporting a disk set ( a servomechanism ( a disk set ( a disk carrier of the sixth shift element (F) supporting the disk set ( a servomechanism (