An all-wheel drive vehicle driveline that includes a PTU input member, a spindle, a stub shaft, an axle shaft, a PTU clutch and a stub shaft clutch. The PTU input member, the spindle, the stub shaft and the axle shaft are rotatable about a first rotary axis. The axle shaft is received through the spindle. The PTU clutch is operable in a first PTU clutch mode, in which the PTU input member is rotatably coupled to the spindle, and a second PTU clutch mode in which the PTU input member is rotatably decoupled from the spindle. The stub shaft clutch is operable in a first stub shaft clutch mode, in which the stub shaft is rotatably coupled to the axle shaft, and a second stub shaft clutch mode, in which the stub shaft is rotatably de-coupled from the axle shaft.

A transfer case (18) is disclosed. The transfer case (18) includes an input shaft (16) and a sun gear (56). The sun gear (56) includes a collar end (58) and a gear end (60) and at least a portion of the sun gear (56) circumscribes the input shaft (16). A hub (62) circumscribes the collar end (58) and the input shaft (16), and may be slidably move between a first position (64) and a second position (66) opposite the first position (64) along the input shaft (16) and the collar end (58). A plurality of planetary gears (70) is mounted in a carrier body (72) circumscribing the gear end (60), and the carrier body (72) is splined with the transfer case input shaft (16). A ring gear (78) circumscribes the plurality of planetary gears (70) mounted in the carrier body (72), and is integrally joined with an output shaft (20). The ring gear (78) is rotatable around the plurality of planetary gears (70).

An axle assembly can include a housing defining a reservoir and cylindrical bore open thereto. A clutch can selectively transmit torque between input and output members. A first inlet/outlet of a pump can be in fluid communication with the reservoir and define first threads coaxial with the cylindrical bore. The pump can be configured to pump fluid from the first inlet/outlet to an actuator of the clutch via a second inlet/outlet. The filter can include a base, port, and filter element. The port can define second threads that threadably engage the first threads. The base can be fixedly coupled to the port and include a cylindrical wall coaxial with the second threads. A seal member can form a seal between the cylindrical wall and the cylindrical bore when the first and second threads are engaged. The filter element can be disposed between the reservoir and the first inlet/outlet.

An all-wheel drive vehicle driveline can include an input member, first intermediate member, output member, sleeve, ring gear, and pinion gear. The input member can be coupled to an input of a differential mechanism for common rotation. The output member can be coupled to an output of the differential mechanism for common rotation. The sleeve can be axially movable between a first position wherein the input, output, and first intermediate members are rotatable relative to each other, a second position wherein the sleeve couples the input member to the first intermediate member for common rotation, and a third position wherein the sleeve couples the input member to the output member for common rotation. The ring gear can receive rotary power from the first intermediate member. The pinion gear can be meshingly engaged to the ring gear.

An AWD driveline includes first and second sleeves. The first sleeve is axially translatable between first, second, and third positions; the second sleeve is coupled for translation therewith. When the first sleeve is in the first position, the first sleeve couples an input of a differential to an intermediate member, and the second sleeve is rotatable relative to the first sleeve and couples first and second outputs members. The first output member can be an output of the differential. In the second position, the first sleeve is rotatable relative to the input or the intermediate member, and the second sleeve is rotatable relative to the first sleeve and couples the first and second output members. In the third position, the first sleeve is rotatable relative to the input or the intermediate member, and the second sleeve is rotatable relative to the first sleeve and the first or second output members.

In accordance with one aspect of the techniques described herein, there is provided a vehicle comprising an engine, an automatic, robotic, or continuously variable transmission mechanically coupled to the engine, a four-wheel drive system, a vehicle control system coupled to the engine, the four-wheel drive system and the transmission, a braking system, a gas pedal for controlling the operation of the engine, a brake pedal for controlling the operation of the braking system, the gas pedal and the brake pedal being disposed in the vehicle for control by a right foot of the driver, the vehicle further comprising an additional pedal being disposed in the vehicle for control by a left foot of the driver and coupled to the vehicle control system, wherein the additional pedal is separate and distinct from the brake pedal and the gas pedal and wherein additional pedal controls the four-wheel drive system of the vehicle.

An AWD driveline includes first and second sleeves. The first sleeve is axially translatable between first, second, and third positions; the second sleeve is coupled for translation therewith. When the first sleeve is in the first position, the first sleeve couples an input of a differential to an intermediate member, and the second sleeve is rotatable relative to the first sleeve and couples first and second outputs members. The first output member can be an output of the differential. In the second position, the first sleeve is rotatable relative to the input or the intermediate member, and the second sleeve is rotatable relative to the first sleeve and couples the first and second output members. In the third position, the first sleeve is rotatable relative to the input or the intermediate member, and the second sleeve is rotatable relative to the first sleeve and the first or second output members.

An all-wheel drive vehicle driveline can include an input member, first intermediate member, output member, sleeve, ring gear, and pinion gear. The input member can be coupled to an input of a differential mechanism for common rotation. The output member can be coupled to an output of the differential mechanism for common rotation. The sleeve can be axially movable between a first position wherein the input, output, and first intermediate members are rotatable relative to each other, a second position wherein the sleeve couples the input member to the first intermediate member for common rotation, and a third position wherein the sleeve couples the input member to the output member for common rotation. The ring gear can receive rotary power from the first intermediate member. The pinion gear can be meshingly engaged to the ring gear.

In accordance with one aspect of the techniques described herein, there is provided a vehicle comprising an engine, an automatic, robotic, or continuously variable transmission mechanically coupled to the engine, a four-wheel drive system, a vehicle control system coupled to the engine, the four-wheel drive system and the transmission, a braking system, a gas pedal for controlling the operation of the engine, a brake pedal for controlling the operation of the braking system, the gas pedal and the brake pedal being disposed in the vehicle for control by a right foot of the driver, the vehicle further comprising an additional pedal being disposed in the vehicle for control by a left foot of the driver and coupled to the vehicle control system, wherein the additional pedal is separate and distinct from the brake pedal and the gas pedal and wherein additional pedal controls the four-wheel drive system of the vehicle.

A differential drive system for a vehicle includes a differential drive device, a dog clutch device, and an electromagnetic actuator. The axis of rotation of the differential drive device is situated outside of the annular electromagnet of the electromagnetic actuator.