Abstract: A transfer case (26) for translating rotational torque from an engine (22) to first and second differentials (34, 36). A primary shaft (50) is supported in a housing (48) and has an input in communication with the engine (22) and an output in communication with the first differential (34). A secondary shaft (52) is disposed in communication with the second differential (36). A clutch (54) selectively translates torque between the shafts (50, 52) and moves between a first position (54A) wherein torque is translated to the secondary shaft (52), and a second position (54B) wherein torque is interrupted. An actuator (64) with a piston (68) movably supported in a cylinder (66) moves the clutch (54). A lock (70) moves between a locked configuration (70A) engaging the piston (68) to prevent the clutch (54) from moving, and an unlocked configuration (70B) releasing the piston (68) allowing the clutch (54) to move.

Abstract: A number of variations may include a product that may include an axle assembly with an electrical machine that may be interconnected with the axle assembly. A power transfer unit may be connected between the electrical machine and the axle assembly. The power transfer unit may include a planetary gear set and may include an engagement mechanism that in combination may provide a low range, a neutral mode and a high range between the electrical machine and the axle assembly. A first gear set may be engaged between the electrical machine and the power transfer unit and a second gear set may be engaged between the power transfer unit and the axle assembly.

Abstract: An axle disconnect assembly for translating rotational torque between an output shaft and an axle shaft of a vehicle driveline; including: disconnect housing and a clutch supported therein. The clutch is disposed in selective torque translating relationship between the output shaft and the axle shaft, and is movable between: an engaged configuration wherein torque is translated between the output shaft and the axle shaft; and a disengaged configuration wherein torque is interrupted between the shafts. An electromagnetic actuator is provide and has a slider selectively movable between a first stable position and a second stable position. The actuator is disposed in force translating relationship with the clutch such that movement from one stable position to the other stable position causes corresponding movement of the clutch between the configurations so as to selectively translate rotational torque between the output shaft and the axle shaft.

Abstract: A product may include an engine, and a transmission driven by the engine. An axle assembly may be driven by the engine through the transmission. An electrical machine may be connected to the axle assembly. The electrical machine may selectively drive the axle assembly and may be selectively drivable by the engine through the transmission and the axle assembly. A power transfer unit may be engaged between the electrical machine and the axle assembly.

Abstract: A transfer case comprising an input shaft and a first output shaft sharing a primary axis of rotation; a second output shaft offset from the first output shaft; a range shifter comprising a first cam constructed and arranged to selectively shift a vehicle to a high-range drive mode, a low range drive mode, or a neutral drive mode; a mode shifter comprising a second cam constructed and arranged to actuate a synchronizer which selectively shifts the vehicle between a two-wheel drive and a four-wheel drive mode; and a dual drive gear interposed between the range shifter and the mode shifter which is rotatable to actuate the first cam and the second cam.

Abstract: A number of variations may include a transfer case comprising an input shaft and a first output shaft sharing a primary axis of rotation; a second output shaft offset from the first output shaft; a range shifter comprising a first cam constructed and arranged to selectively shift a vehicle to a high-range drive mode, a low range drive mode, or a neutral drive mode; a mode shifter comprising a second cam constructed and arranged to actuate a synchronizer which selectively shifts the vehicle between a two-wheel drive mode and a four-wheel drive mode a gear train having a first axis offset from the primary axis, and a reversible electric motor which drives the gear train wherein direction of the rotation of the electric motor determines engagement or disengagement of the mode shifter to selectively shift the vehicle between the two-wheel drive mode and the four-wheel drive mode.

Abstract: A number of variations may include a product that may include a power transfer assembly. A gear train may have multiple gears and may provide a first stage gearing that may have a fixed gear ratio. At least one planetary gear set may provide a second stage gearing that may have multiple gear ratios. An electric machine may selectively provide input to the first stage gearing. A differential unit may selectively receive output from the planetary gear set. An engagement mechanism may selectively connect the differential unit with the second stage gearing in each of a high range mode and a low range mode.

Abstract: A transfer case (30) and a method of assembly can include a range shifting assembly (60) and a clutch assembly (80) located axially adjacent to one another along a common primary axis. An actuating device (32) can include a concentric gear located coaxially interposed between the range shifting assembly (60) and the clutch assembly (80) for rotation about the common primary axis. The concentric gear (48) can actuate the range shifting assembly (60) during a portion of angular rotation about the common primary axis and can actuate the clutch assembly (80) during a mutually exclusive portion of angular rotation about the common primary axis. The actuating device (32) can include a barrel cam (59), a plurality of springs engageable between the barrel cam (59) and the concentric gear (48), and a shift fork (68) operably engageable with a cam surface groove (57) for guided axial movement to actuate the range shifting assembly (60) between a low-range and high-range drive mode.

Abstract: An axle disconnect assembly for translating rotational torque between an output shaft and an axle shaft of a vehicle driveline; including: disconnect housing and a clutch supported therein. The clutch is disposed in selective torque translating relationship between the output shaft and the axle shaft, and is movable between: an engaged configuration wherein torque is translated between the output shaft and the axle shaft; and a disengaged configuration wherein torque is interrupted between the shafts. An electromagnetic actuator is provide and has a slider selectively movable between a first stable position and a second stable position. The actuator is disposed in force translating relationship with the clutch such that movement from one stable position to the other stable position causes corresponding movement of the clutch between the configurations so as to selectively translate rotational torque between the output shaft and the axle shaft.

Abstract: A disconnect assembly for translating torque to shafts of a driveline. A clutch is disposed in torque translating relationship between the shafts and is movable between an engaged configuration wherein torque is translated, and a disengaged configuration wherein torque is interrupted. An actuator includes a coil that generates a first magnetic field. A slider is movable between a first stable position and a second stable position, with an armature operatively attached to the slider. The armature has a magnetic polarity pattern defined by a plurality of north and south magnetic pole regions facing the coil. The pattern configured such that predetermined changes in the magnetic field generated by the coil urge the slider from one of the stable positions to the other of the stable positions so as to cause corresponding movement of the clutch assembly between the configurations to selectively translate rotational torque between the shafts of the driveline.

Abstract: A wheel-end disconnect assembly for translating rotational torque between an output shaft and a wheel hub of a vehicle driveline. A knuckle bracket at least partially supports the wheel hub. A clutch is operatively attached to the knuckle bracket, is disposed in selective torque translating relationship between the output shaft and the wheel hub, and is movable between: an engaged configuration wherein torque is translated between the output shaft and the wheel hub, and a disengaged configuration wherein torque is interrupted. An electromagnetic actuator is provided and has a slider selectively movable between a first stable position and a second stable position. The actuator is disposed in force translating relationship with the clutch such that movement from one stable position to the other stable position causes corresponding movement of the clutch between the configurations so as to selectively translate rotational torque between the output shaft and the wheel hub.

Abstract: A number of variation may include a method that may include providing a drive system that may deliver a torque supply to a vehicle. An electric unit may be provided. The torque supply may be reduced. A torque fill may be initiated when the torque supply is reduced. The torque fill may be supplied from the electric unit.

Abstract: A product may include a differential unit, and an electrical machine may be interconnected with the differential unit. The differential unit and the electrical machine may be lubricated by a fluid. A reservoir may be defined above the electrical machine. The reservoir may receive the fluid during operation of the differential unit and may selectively store and release the fluid.

Abstract: A number of variations include a product comprising a transfer case comprising a hydraulic system comprising a hydraulic fluid and a hydraulic pump or hydraulic motor wherein the hydraulic system is constructed and arranged to capture energy from regenerative braking of the at least one brake of at least one drive.

Abstract: A product may include a differential unit that may be engaged with first and second axle shafts that may be driven from a common gear. An electrical machine may be positioned on a first side of the differential unit. A first shaft may extend from the electrical machine and into the differential unit. A power transfer unit may be positioned on a second side of the differential unit opposite the first side. A second shaft may extend into each of the differential unit and the power transfer unit. The first and second shafts may be rotationally engageable through the power transfer unit.

Abstract: A product may comprise an electric machine, and may include first and second shafts connectable to the electric machine in torque a transferring relationship. A first clutch assembly may selectively connect the electric machine with the first shaft and a second clutch assembly may selectively connect the electric machine with the second shaft. A gear set may be operatively engageable between the electric machine and the first and second clutch assemblies. An engagement coupling may connect the gear set in a high range between the electric machine and the first and second clutch assemblies, and the engagement coupling may connect the gear set in a low range between electric machine and the first and second clutch assemblies.

Abstract: A rotary coupling (200) for an all-wheel drive vehicle includes a housing (210), an input part (212), an output part (214), and a clutch (220) disposed within a clutch area (222) of the housing (210) and is movable between an engaged position and a disengaged position to change an amount of torque transferred from the input part (212) to the output part (214). A fluid reservoir (260) is defined in the housing (210). A lubrication valve (250) is movable between an open position and a closed position for controlling supply of a fluid from the fluid reservoir (260) to the clutch area (222) of the housing (210). An actuator (238) is connected to the clutch (220) to move the clutch (220) between the engaged position and the disengaged position and connected to the lubrication valve (250) to move the lubrication valve (250) between the open position and the closed position.

Abstract: A first ball ramp half includes a first ball ramp plate grounded within a housing against translation that defines first portions of respective one or more ramped ball receiving recesses. A second ball ramp half includes a gear plate supported within the housing for rotation relative to the first ball ramp plate and grounded within the housing against translation relative to the first ball ramp plate that has gear teeth, a second ball ramp plate supported within the housing for rotation relative to the first ball ramp plate that defines complementary second portions of the respective one or more ramped ball receiving recesses, and a joint coupling the gear plate to the second ball ramp plate. The joint imparts rotation of the gear plate to the second ball ramp plate, and is permissive of translation of the second ball ramp plate relative to the first ball ramp plate.

Abstract: The present invention relates to a transfer case (16) lubrication system (42) that includes a housing (44) defining a chamber and having a lower portion (58). A partition (46) extends from the lower portion (58) and is disposed in the chamber so as to define a reservoir for oil, adjacent to the partition (46) and spaced from the chamber. First and second sprocket (50)s are supported in the chamber, with the first sprocket (48) being spaced from the reservoir. The system also includes a pump assembly (52) having an oil pump (78), a pickup (80) in fluid communication with the pump and at least partially disposed in the reservoir, and a spray bar (82) in fluid communication with the pump for directing oil from the reservoir to a predetermined location within the chamber. A chain (54) connects the sprockets and is spaced from the partition (46) so as to generate a windage force for transferring oil from the chamber to the reservoir in operation.

Abstract: A vehicle powertrain hydraulic system (10) includes a clutch (12), a piston (62) disposed in a cylinder (60) to drive a shift selector (14), a pump (82) in fluid communication with a fluid supply (86) to pressurize fluid, and first and second fluid pressure lines (91, 92) from the pump to first and second sides of the piston. A third fluid pressure line (93) may extend to the clutch from the cylinder in a location between the first and second sides of the piston, such that the piston also may be a valve to control fluid flow to the clutch. The pump may be reversible and coupled to an electric motor (80), and a centrifugal regulator (84) may be coupled to the motor and in fluid communication with the first and second pump pressure lines to regulate fluid pressure therein. A related operational method is also disclosed.