Abstract: A work vehicle transaxle arrangement includes a main shaft; at least one transaxle gear assembly; a differential drive shaft; a first electric machine configured to drive rotation of the differential drive shaft such that mechanical power is distributed through the differential to the axle half-shafts; a second electric machine; a PTO shaft; and a hydraulic pump. In a hybrid configuration, the main shaft is configured to be driven by an internal combustion engine to power the PTO shaft and the second electric machine such that the second electric machine generates electrical power routed through the inverter to at least partially drive the first electric machine; and in an electric-only configuration, the second electric machine is driven by electrical power routed through the inverter and drawn from the battery to generate mechanical power that drives the PTO shaft and the hydraulic pump through the at least one transaxle gear assembly.

Abstract: A transmission assembly for a work vehicle includes a housing that accommodates first and second transmission shafts, a gear arrangement that provides a selective gear reduction for transmission of power between the first and second transmission shafts, and a quill structure secured to the housing that supports the first transmission shaft. The quill structure is couplable to the housing in a first orientation and a second orientation to vary a vertical spacing between the first and second transmission shafts. A bearing bore in the quill structure is formed at a vertically offset location of the quill structure and receives the first transmission shaft. The vertical spacing between the first transmission shaft and the second transmission shaft may be set at a first vertical distance or at a second vertical distance based on the quill structure being coupled to the housing in the first orientation or in the second orientation, respectively.

Abstract: A planetary gear system and a planet gear fastener assembly for a planetary gear system includes a planet gear having a planet gear axis, a carrier connected to the planet gear, and a sun gear that engages the planet gear. The planetary gear fastener assembly includes a washer having a washer axis and configured to be positioned against an axial end of the planet gear and a fastener extending through the washer to couple the washer to the carrier. The fastener includes a fastener axis positioned to be radially offset from the planet gear axis of the planet gear.

Abstract: An electric motor includes a stator core and a plurality of stator windings disposed on or in the stator core, with the plurality of stator windings including a plurality of winding end-turns that extend out from the stator core. The electric motor also includes an electrically insulating potting material applied over the plurality of winding end-turns. A cooling passage is formed that defines a cooling circuit through which a cooling fluid is circulated to provide cooling to the plurality of winding end-turns, the cooling passage formed upon dissolving of a chemically soluble material embedded within the potting material.

Abstract: An electric machine includes a drive assembly and a casing. The drive assembly has a stator and a rotor rotatable about a drive axis relative to the stator. The casing contains the drive assembly and has coolant passages, the coolant passages defining a first inlet opening, a second inlet opening, a stator feed circuit, a rotor feed circuit, and an intersection providing fluid communication between the stator feed circuit and the rotor feed circuit. The coolant passages receive at least one coolant input through one or more of the first inlet opening and the second inlet opening to deliver coolant to the rotor through the rotor feed circuit and to the stator through the stator feed circuit.

Abstract: An electric drive assembly for operation with a component of a work vehicle having an SAE standard hydraulic pump/motor mount includes an electric machine having a shaft and a mounting flange. An adapter housing defines an interior space between a component mounting flange and an electric machine mounting flange. The electric machine mounting flange is sized and configured to mate with the mounting flange of the electric machine. The component mounting flange has a bolt hole pattern and a mounting pad each of a complementary size and configuration to that of the SAE standard hydraulic pump/motor mount. A gear set at least in part disposed in the interior space of the adapter housing is configured to effect a gear ratio change and transfer power between the shaft of the electric machine and a drive shaft.

Abstract: A drive assembly for a work vehicle includes an electric machine and a transmission assembly, which has a gear set at least in part contained within a transmission housing and has a control orifice communicating with a transmission section of a cooling circuit for the drive assembly being at least in part within the transmission housing. The electric machine has a casing coupled to the transmission housing to be mounted fixedly thereto. The casing has a coolant inlet port and defines an electric machine section of the cooling circuit for the drive assembly that is at least in part within the casing. A controlled flow of coolant is transferred from the electric machine section of the cooling circuit to the transmission section of the cooling circuit via the control orifice.

Abstract: A work vehicle drive includes a housing; an electric machine at least partially housed within the housing, configured to generate rotational power, and comprising an interface coupling at an electric machine output; a transmission at least partially housed within the housing, rotationally coupled to the interface coupling, and configured to transfer at least a portion of the mechanical power from the electric machine to a drive output; a pump at least partially housed within the housing and configured to facilitate circulation of lubrication fluid about the transmission, wherein the pump is selectively driven, in a first mode of operation, by the rotational power of the electric machine; and a solenoid device at least partially housed within the housing and configured to selectively drive the pump in a second mode of operation.

Abstract: A drive assembly for a work vehicle includes a drive housing, a drive shaft rotatable about a drive axis, an inner hub rotationally fixed to the drive shaft, and a planetary gear set coupled to the drive shaft and configured to selectively rotate an output element. The drive assembly also includes a clutch arrangement having a clutch ring configured to selectively engage the planetary gear set. The clutch arrangement further includes a guide assembly mounted on the clutch ring and configured to selectively interact with the planetary gear set to effect disengagement of the clutch ring from the planetary gear set. A clutch actuation assembly is configured to effect movement of the clutch arrangement along the drive axis to engage the planetary gear set, and a guide actuation assembly is configured to operate the guide assembly to interact with the planetary gear set.

Abstract: A final drive assembly is provided for powering a ground-engaging mechanism of a work machine. The final drive assembly includes a plurality of power-transferring devices each having an output and a planetary gearset assembly including a plurality of planetary inputs and a planetary output. The planetary output is configured to transfer power from the plurality of planetary inputs to the ground-engaging mechanism. Each of the plurality of planetary inputs is coupled to one output of the plurality of power-transferring devices.

Abstract: A swing drive for rotating a component of a work vehicle. The swing drive has an electric machine rotating an output shaft about a drive axis and having a planetary set disposed beneath the electric machine. The planetary set has a carrier with pinion shafts having oil passageways therethrough. A splash plate is disposed axially between the electric machine and the planetary set to direct lubricating oil from a face of the electric machine to the oil passageways of the pinion shafts and to direct lubricating oil from the face of the electric machine around the oil passageways. A drive gear is driven to rotate about the drive axis by the electric motor via the double planetary set.

Abstract: A final drive assembly is provided for powering a ground-engaging mechanism of a work machine. The final drive assembly includes a plurality of power-transferring devices each having an output and a planetary gearset assembly including a plurality of planetary inputs and a planetary output. The planetary output is configured to transfer power from the plurality of planetary inputs to the ground-engaging mechanism. Each of the plurality of planetary inputs is coupled to one output of the plurality of power-transferring devices.

Abstract: A work vehicle and energy storage device include a ballast providing ballast weight to the horizontal end of the work vehicle, a stator of an electric machine having a vertically extending axis, and a rotor of the electric machine fixed for rotation with the ballast.

Abstract: An energy storage device for storing energy generated from operation of a work vehicle includes a ballast providing ballast weight to the work vehicle, a stator of an electric machine mounted on the work vehicle, a rotor of the electric machine fixed for rotation with the ballast, spaced from the stator by a gap, and configured for rotation relative to the stator such that the electric machine is configured to generate electrical current from rotation of the rotor and the ballast relative to the stator and to rotate the rotor and the ballast from electrical current received by the electric machine, and a gap modulator coupled to at least one of the stator and the rotor and configured to selectively adjust the gap between the rotor and the stator based on an operation of the electric machine.

Abstract: A work vehicle and energy storage device include an electric machine having a stator and a rotor. The rotor is configured to rotate from the flow of electrical current provided to the electric machine, rotate to store energy of the work vehicle, provide a rotor mass to an end of the work vehicle, and generate electrical current for the work vehicle from rotation of the rotor. The rotor mass is greater than a stator mass.

Abstract: An energy storage device is mounted at a horizontal end of a work vehicle for storing energy generated from operation of the work vehicle. The energy storage device includes a stator of an electric machine having a stator axis, a rotor of the electric machine fixed for rotation with a rotating ballast and configured for rotation about the stator axis, a housing disposed around the rotor and configured to contain the electric machine, and a brake configured to absorb kinetic energy of the rotor.

Abstract: A drive assembly for a work vehicle includes a drive housing, a drive shaft rotatable about a drive axis, an inner hub rotationally fixed to the drive shaft, and a planetary gear set coupled to the drive shaft and configured to selectively rotate an output element. The drive assembly also includes a clutch arrangement having a clutch ring configured to selectively engage the planetary gear set. The clutch arrangement further includes a guide assembly mounted on the clutch ring and configured to selectively interact with the planetary gear set to effect disengagement of the clutch ring from the planetary gear set. A clutch actuation assembly is configured to effect movement of the clutch arrangement along the drive axis to engage the planetary gear set, and a guide actuation assembly is configured to operate the guide assembly to interact with the planetary gear set.

Abstract: A work vehicle and energy storage device include a ballast providing ballast weight to the horizontal end of the work vehicle, a stator of an electric machine having a vertically extending axis, a rotor of the electric machine fixed for rotation with the ballast and configured for rotation about the vertically extending axis, and a bearing supporting the ballast weight and the rotor for rotation of the rotor relative to the stator.

Abstract: An electric drive assembly for operation with a component of a work vehicle having an SAE standard hydraulic pump/motor mount includes an electric machine having a shaft and a mounting flange. An adapter housing defines an interior space between a component mounting flange and an electric machine mounting flange. The electric machine mounting flange is sized and configured to mate with the mounting flange of the electric machine. The component mounting flange has a bolt hole pattern and a mounting pad each of a complementary size and configuration to that of the SAE standard hydraulic pump/motor mount. A gear set at least in part disposed in the interior space of the adapter housing is configured to effect a gear ratio change and transfer power between the shaft of the electric machine and a drive shaft.

Abstract: A drive assembly for a work vehicle includes an electric machine and a transmission assembly, which has a gear set at least in part contained within a transmission housing and has a control orifice communicating with a transmission section of a cooling circuit for the drive assembly being at least in part within the transmission housing. The electric machine has a casing coupled to the transmission housing to be mounted fixedly thereto. The casing has a coolant inlet port and defines an electric machine section of the cooling circuit for the drive assembly that is at least in part within the casing. A controlled flow of coolant is transferred from the electric machine section of the cooling circuit to the transmission section of the cooling circuit via the control orifice.