Multi-speed hybrid transmission and transmission operating method
AssigneeDana Performance Transmissions S.R.L.
InventorEmanuele Rulfi Fertilio
Life of this patent
Estimating the term…
Abstract
A hybrid transmission system with a multi-speed gearbox. The multi-speed gearbox, in one example, includes a first primary shaft with a first set of gears positioned thereon and selectively coupled to an internal combustion engine (ICE) at a first end and a second primary shaft with a second set of gears positioned thereon. The gearbox further includes a secondary shaft with a third set of gears that mesh with the first set of gear and the second set of gears and an electric drive interface gear that is idly mounted, free to spin, on the second primary shaft, positioned between two gears in the second set of gears, and configured to receive mechanical power from an electric machine and an output shaft that is configured to mechanically attached to a differential.
Claims10
A hybrid transmission system, comprising:
- a multi-speed gearbox including:
- a first primary shaft with a first set of gears positioned thereon and selectively coupled to an internal combustion engine (ICE) at a first end;
- a second primary shaft with a second set of gears positioned thereon;
- a secondary shaft with a third set of gears that mesh with the first set of gear and the second set of gears;
- an electric drive interface gear idly mounted, free to spin, on the second primary shaft, positioned between two gears in the second set of gears, and configured to receive mechanical power from an electric machine;
- a gear clutch coupled to the secondary shaft and designed to selectively engage a gear that is idly mounted to the secondary shaft and meshes with the electric drive interface gear;
- and
- an output shaft that includes:
- a first output shaft gear which is fixedly coupled thereto meshes with a gear on a secondary shaft;
- and
- a second output shaft gear which meshes with a bevel gear in a differential that is positioned perpendicular to the electric machine.
Dependencies are inferred from the claim text.