Abstract: Systems are provided for a transmission system. In one example, a multi-speed transmission includes an input shaft comprising an input gear driven by two electric motors, a first clutch comprising a first clutch gear configured to rotate a first shaft on which a first synchronizer is arranged, wherein the first clutch is arranged on the input shaft, a second clutch comprising a second clutch gear configured to rotate a second shaft on which a second synchronizer is arranged, wherein the second clutch is arranged on the input shaft, an idler shaft comprising a plurality of gears in meshed engagement with gears of the first synchronizer and the second synchronizer, and an output shaft comprising an output gear in meshed engagement with a gear of the plurality of gears of the idler shaft.

Abstract: Methods and systems for a powertrain system. The powertrain system includes a first traction motor and a reduction planetary gear set rotationally coupled to the first traction motor. The powertrain system further includes a power take-off (PTO) that is configured to attach to an implement, and an input shaft rotationally coupled to the first traction motor and a transmission, where the reduction planetary gear set has a grounded component.

Abstract: A transmission system is described having a first gear ratio coupling a forward clutch and a first shaft to an intermediate shaft, a second gear ratio coupling a reverse clutch and a first shaft to the intermediate shaft, and a third gear ratio coupling the intermediate shaft to an output shaft.

Abstract: Power take-off (PTO) systems and methods. A PTO assembly, in one example, includes a first one-way clutch configured to engage with a shaft of a prime mover or an output shaft when the prime mover rotates in a first direction and a second one-way clutch configured to engage with the shaft of the prime mover or the output shaft when the prime mover rotates in second direction which is opposite the first direction. The PTO assembly further includes a first mechanical branch rotationally coupling the first one-way clutch to the output shaft or the prime mover shaft and a second mechanical branch rotationally coupling the second one-way clutch to the output shaft or the prime mover shaft.

Abstract: Systems are provided for a transmission system. In one example, a multi-speed transmission includes an input section comprising a plurality of input speed reduction gearsets, an intermediate section comprising a plurality of clutches and gears configured to generate different speeds, and an output section comprising a high clutch and a low clutch, wherein each of the sections is arranged in the transmission housing, wherein a layout of the sections is arranged in a short drop layout with a first distance between an input shaft of the input section and an output shaft of the output section or in a long drop layout with a second distance between the input shaft and the output shaft, wherein the second distance is greater than the first.

Abstract: Systems and a method for a clutch assembly are provided. In one example, a wet clutch for an electric motor includes a plurality of friction plates connected to a clutch hub; a plurality of separator plates connected to a drum and interleaved with the plurality of friction plates, a gear coupled to the electric motor; and a one-way clutch integrated into the wet clutch so as to be positioned between the gear and the clutch hub to allow free rotation in a predetermined direction while the wet clutch is hydraulically actuated and the friction plates and the separator plates rotate at the same speed thus avoiding drag losses.

Abstract: Systems and methods for a power take-off (PTO) assembly. The PTO assembly, in one example, couples to a shaft and is driven by rotation of the shaft. The PTO assembly includes a disconnect clutch that selectively couples a bi-directional pump to the shaft. The disconnect clutch is passively actuated based on hydraulic system pressure to disengage the disconnect clutch when a prime mover is in operation and engage the disconnect clutch when the prime mover is shut down.

Abstract: Systems and methods for a power take-off (PTO) assembly. The PTO assembly, in one example, includes a bi-directional pump in fluidic communication with a fluid reservoir and a hydraulic system and a disconnect clutch configured to mechanically disengage and disconnect the bi-directional pump from a transmission when a prime mover is in operation, and mechanically engage and connect the bi-directional pump to the transmission when the prime mover is shut down. The PTO assembly further includes an electro-mechanical valve configured to trigger engagement and disengagement of the disconnect clutch.

Abstract: Systems and methods for an electric drive unit are provided. A transmission system, in one example, includes a higher-lower range clutch assembly positioned downstream of a multi-speed clutch assembly and designed to shift the transmission system between a higher range operating mode and a lower range operating mode. The higher-lower range clutch assembly includes a lower range clutch and a higher range clutch each positioned on one of a first layshaft and an output shaft.

Abstract: Systems and a method are provided for a transmission system. In one example, a multi-speed transmission includes an input shaft driven by two parallel electric motors, the input shaft comprising a first gear and a second gear, a first clutch shaft comprising a first clutch engaged with the first gear, a second clutch shaft comprising a second clutch engaged with the second gear, a fourth clutch shaft comprising a fourth clutch engaged with the second clutch, the fourth clutch shaft further comprising a fourth clutch shaft first gear engaged with a first clutch shaft gear arranged on the first clutch shaft, and a third clutch arranged on the input shaft, the third clutch engaged with a second clutch shaft gear.

Abstract: Systems and a method are provided for a transmission system. In one example, a multi-speed transmission includes an input shaft comprising an input gear driven by two electric motors, a first gear meshing with a first clutch and a second clutch, and a second gear meshing with a third clutch and a fourth clutch, an idler shaft comprising an idler gear and an idler shaft gear, a first countershaft that is selectively engaged to the first clutch or to the third clutch and is meshed with the idler gear via a third gear, a second countershaft that is selectively engaged to the second clutch or to the fourth clutch and is meshed with the idler gear via a fourth gear; and an output gear meshed with the idler shaft gear and configured to rotate an output shaft.

Abstract: Methods and systems are provided for an assembly comprising a first motor positioned on a first shaft, a second motor positioned on a second shaft, a first wet clutch selectively coupled to the first shaft, a second wet clutch selectively coupled to a drive axle, a third wet clutch selectively coupled to the first shaft, and a brake clutch fixed to a housing of the assembly. The assembly comprises a planetary gearset positioned on the second shaft having gears selectively coupled to the third wet clutch, the first wet clutch or to the brake clutch. The assembly comprises a first one-way clutch and a second one-way clutch opposing the first one-way clutch, the first one-way clutch and the second one-way clutch selectively coupled to the first shaft, where the first one-way clutch and the second one-way clutch are directly connected to two gear trains to drive a PTO shaft.

Abstract: Systems and a method for a clutch assembly are provided. In one example, a wet clutch for an electric motor includes a plurality of friction plates connected to a clutch hub; a plurality of separator plates connected to a drum and interleaved with the plurality of friction plates, a gear coupled to the electric motor; and a one-way clutch integrated into the wet clutch so as to be positioned between the gear and the clutch hub to allow free rotation in a predetermined direction while the wet clutch is hydraulically actuated and the friction plates and the separator plates rotate at the same speed thus avoiding drag losses.

Abstract: An assembly comprising: a first electric motor coupled to an input shaft of a transmission via a first clutch; a second electric motor directly coupled to the input shaft of the transmission; a power take-off unit coupled to the first clutch; a first housing comprising the transmission; and a second housing comprising the power take-off unit and an power take-off assembly the power take-off unit is coupled to, where the second housing is fastened to the first housing.

Abstract: An assembly comprising: a first electric motor coupled to an input shaft of a transmission via a first clutch; a second electric motor directly coupled to the input shaft of the transmission; a power take-off unit coupled to the first clutch; a first housing comprising the transmission; and a second housing comprising the power take-off unit and an power take-off assembly the power take-off unit is coupled to, where the second housing is fastened to the first housing.

Abstract: Methods and systems are provided for an assembly comprising a first motor positioned on a first shaft, a second motor positioned on a second shaft, a first wet clutch selectively coupled to the first shaft, a second wet clutch selectively coupled to an output shaft, a third wet clutch meshed with the output shaft, a brake clutch fixed to a housing of the assembly, a planetary gearset comprising a sun gear positioned on the second shaft, a planet carrier meshed with the second wet clutch and selectively coupled to the third wet clutch, and a ring gear selectively coupled with the brake clutch and meshed with the first wet clutch, and a first one-way clutch and a second one-way clutch opposing the first one-way clutch, the first one-way clutch and the second one-way clutch selectively coupled to the first shaft and mesh with a geartrain to drive an auxiliary shaft.

Abstract: Methods and systems are provided for a transmission clutch. In one example, the clutch has a pressure control system that includes a piston housing enclosing a piston cavity and a piston, as well as a diffusor positioned in the piston cavity. The diffusor may have tangential channels for directing flow of a fluid into the piston cavity.

Abstract: Methods and systems for a multi-ratio gear box and four speed transmission are provided. In one example, a first shaft is coupled to one or more input speed reduction gear sets. A second shaft is coupled to a multi-range clutch having a first position and a second position allowing for two speeds. A third shaft is coupled to a low-speed clutch and a fourth shaft is coupled to a high-speed clutch, together doubling the number of speeds. The high and low-speed clutches provide a large gear spread that allow the multi-range clutches to have a reduced gear spread, overall reducing the required size of the transmission. A fifth shaft, coupled to the fourth shaft via a gear, may be an output shaft spaced away from the electric motors, thereby creating a short flange to flange distance.

Abstract: Systems and methods for a power take-off (PTO) assembly. The PTO assembly, in one example, includes a bi-directional pump in fluidic communication with a fluid reservoir and a hydraulic system and a disconnect clutch configured to mechanically disengage and disconnect the bi-directional pump from a transmission when a prime mover is in operation, and mechanically engage and connect the bi-directional pump to the transmission when the prime mover is shut down. The PTO assembly further includes an electro-mechanical valve configured to trigger engagement and disengagement of the disconnect clutch.

Abstract: Systems and methods for an electric drive unit. The electric drive unit, in one example, includes a first motor and a second motor arranged parallel to each other and rotationally coupled to a first input gear that is fixedly coupled to a first transmission shaft and a first clutch arranged coaxial to a second clutch. The drive unit further includes a second transmission shaft with an output gear rotationally coupled thereto and including a first and second mechanical interface configured to rotationally couple to a first drive axle and a second drive axle, where the output gear meshes with a gear that is directly rotationally coupled to a carrier in a planetary gear set.