Multi-speed hybrid transmission and transmission operating method
AssigneeDana Graziano S.R.L.
InventorEmanuele Rulfi Fertilio
Life of this patent
Estimating the term…
Abstract
A transmission system that includes a multi-speed gearbox. The multi-speed gearbox, in one example, includes a primary shaft with a first set of gears positioned thereon, a secondary shaft with a second set of gears positioned thereon, an internal combustion engine (ICE) clutch configured to selectively couple an ICE to the primary shaft, and an electric drive interface gear that is positioned axially between two gears in the first set of gears, configured to couple to an electric machine, and coupled to a gear in the second set of gears.
Claims20
A hybrid transmission system, comprising:
- a multi-speed gearbox including:
- a primary shaft with a first set of gears positioned coaxial thereto and positioned coaxial to an internal combustion engine (ICE);
- a secondary shaft with a second set of gears positioned coaxial thereto;
- an ICE clutch configured to selectively couple the ICE to the primary shaft;
- an electric drive interface gear that is positioned axially between two gears in the first set of gears, configured to rotationally couple to an electric machine, and meshing with a gear in the second set of gears;
- and
- an output shaft that includes an output shaft gear which is fixedly coupled thereto meshes with a gear on the secondary shaft.
A hybrid transmission system, comprising:
- a multi-speed gearbox including:
- an internal combustion engine (ICE) clutch configured to selectively couple an ICE to a primary shaft;
- and
- an electric drive clutch coupled to the primary shaft and designed to selectively engage an electric drive interface gear, wherein the electric drive interface gear is idly mounted to the primary shaft and meshes with a gear on a secondary shaft;
- wherein the electric drive interface gear is positioned axially between two gears that are coaxial to the primary shaft;
- and
- an output shaft that includes an output shaft gear which is fixedly coupled thereto meshes with a gear on the secondary shaft.
Dependencies are inferred from the claim text.