Invention Grant
US07651432B2 Multi-stage automatic transmission 有权
多级自动变速器

Multi-stage automatic transmission
Abstract:
A multi-stage automatic transmission comprising a drive shaft (AN), a double planetary front mounted gear set (VS), a main gear set (HS) which is embodied as a coupled planetary gear set comprising at least three non-coupled input elements and an output element, in addition to six switch elements (A to F). Engagement of the six switch elements (A to F) takes place in pairs thereby enabling at least eight forward gears to be shifted. One element of the front mounted gear set (VS) is determined on a housing (GG). The second and the sixth shift element (B, F) form a component which is arranged on the side of the front mounted gear set (VS) which is oriented away from the main gear set (HS) and is arranged in an at least partially axial manner, between the front mounted gear set (VS) and a housing wall (GW), which is secured to the gear housing and which extends in a radial manner.
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