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US 2024/0157787 A1Published application
Electric powershifting transmission with power take-off
AssigneeDana Belgium N.V.
InventorJoachim VAN DINGENEN
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Abstract
A method and system for operating a transmission that includes a power take off is described. The transmission selectively delivers mechanical power to the power take off from one of two electric traction motors via selective engagement of either a first or a second power take off clutch based on drive mode. The transmission also allows for powershifting between a first and second operating gear.
Claims20
A transmission system, comprising:
- a first electric machine rotationally coupled to a first shaft;
- a first set of gear clutches coupled the first shaft;
- a second electric machine rotationally coupled to a second shaft;
- a second set of gear clutches coupled to the second shaft;
- and
- a first power take-off (PTO) clutch coupled to the first shaft and including a first gear that is rotationally coupled to a second gear that is coupled to an input shaft of a PTO.
3 more elements
A method for operation of a transmission system, comprising:
- selectively delivering mechanical power to a PTO via selective engagement of a first power take-off (PTO) clutch based on a drive mode of the transmission system, wherein the transmission system includes:
- a first electric machine rotationally coupled to a first shaft;
- a first set of gear clutches coupled the first shaft;
- a second electric machine rotationally coupled to a second shaft;
- and
- a second set of gear clutches coupled to the second shaft.
3 more elements
An electric drive transmission, comprising:
- a first traction motor rotationally coupled to a first shaft;
- a first pair of gear clutches coupled the first shaft;
- a second traction motor rotationally coupled to a second shaft;
- a second pair of gear clutches coupled to the second shaft;
- a first power take-off (PTO) clutch coupled to the first shaft;
- a second PTO clutch coupled to the second shaft;
- and
- a controller including instructions stored in non-transitory memory that when executed, during reverse drive operation or a powershifting transient, cause the controller to:
- operate the first and second PTO clutches to deliver mechanical power to a PTO.
6 more elements
Dependencies are inferred from the claim text.