Patent ID: 8936529
Filing Date: 2015-01-20
Classification: F16H,Y10T

Abstract:
1. A stepped transmission with a selectable ratio step comprising at least two transmission shafts extending parallel to one another, a first of the at least two transmission shafts comprising a main shaft defining a first axis while a second of the at least two transmission shafts defining a second axis, and the at least two transmission shafts being couplable to one another via the selectable ratio step, an upstream planetary gear set being provided coaxial with the first axis, the upstream planetary gear set comprising first, second and third transmission components, the first transmission component being connected to and driven by drive supplied along the first axis, the second transmission component having an external gearing which directly meshes with an external gearing of at least one spur gear located on the second axis, a first shift element facilitating braking of the third transmission component to a transmission housing for implementing a first transmission ratio, one of the third transmission component or the second transmission component being connectable, by at least a second shift element, to the drive supplied along the first axis for implementing a second transmission ratio, and wherein the second transmission component is a ring gear which is connected, via an internal gearing, to the first and the third transmission components of the upstream planetary gear set.