A torque vectoring apparatus may include a first planetary gear set including first to third rotation elements, wherein the first rotation element is gear-connected to receive power from the speed reduction device, the second rotation element is connected to be configured for transmitting power to the differential, and the third rotation element is selectively connectable to a housing through a coupling element; a second planetary gear set including fourth, fifth, and sixth rotation elements, wherein the fifth rotation element is fixedly connected to the third rotation element; and a third planetary gear set including seventh, eighth, and ninth rotation elements, wherein the seventh rotation element is fixedly connected to the fourth rotation element, the eighth rotation element is fixedly connected to one of the left and right output shafts while being fixedly connected to the sixth rotation element, and the ninth rotation element is fixedly connected to the housing.

A drive module includes a Ravigneaux gearset, first and second input shafts, shift member, and differential. The first planet gears of the gearset can engage the first sun gear and the second planet gears, which can engage the second sun gear. The first input shaft can rotate with the second sun gear and receives torque from a first motor. A first gear can be coupled to the carrier of the Ravigneaux gearset for rotation therewith and meshingly engages the differential input. The second input shaft receives torque from a second motor and is drivingly coupled to the differential input. When the shift member is in a first position, the shift member drivingly couples the first sun gear to a first differential output. When the shift member is in a second position, the shift member couples the first sun gear to a housing to prevent rotation of the first sun gear.

A torque vectoring device for a vehicle is disclosed. The torque vectoring device includes: a differential; a first planetary gear set connected, at a first rotating element thereof, to a differential case of the differential; a second planetary gear set connected, at a first rotating element thereof, to a selected drive shaft that is one of two drive shafts coupled to the differential; a motor connected to a second rotating element of the first planetary gear set; and a selective fixing mechanism configured to selectively fix a second rotating element or a third rotating element of the second planetary gear set.

Disclosed herein are systems, gearing assemblies and methods for controlling a differential rotation rate between shafts of a vehicle using a variable speed reversible motor. An embodiment includes a gearing assembly including a differential configured to engage a first axle shaft, a second axle shaft, and a drive shaft of a vehicle. The gearing assembly further includes a first plurality of alignment gears and a second plurality of adjustment gears configured to engage the differential, configured to be driven by a variable speed reversible motor of the vehicle, and configured to controllably alter a rotation rate of a first axle shaft relative to a rotation rate of the second axle shaft based on rotation produced by the variable speed reversible motor.

An interference-type torque split differential includes a differential housing, a first differential gear and an interference-type torque split module. The first differential gear is provided in the differential housing. The interference-type torque split module is provided outside the differential housing and has a second differential gear, a first brake source and a second brake source. The second differential gear is connected with the first differential gear. The first brake source and the second brake source are at two sides of the second differential gear, respectively. The first brake source or the second brake source provides multiple stages of clamping force for performing torque split.

An axle assembly having a gear reduction unit and an interaxle differential unit. The gear reduction unit may be operatively connected to an input shaft and may selectively provide gear reduction to a differential assembly and the interaxle differential unit. The interaxle differential unit may operatively connect the gear reduction unit to the output shaft.

A driveline assembly including a pair of reducers each having a sun gear fixed about a primary shaft. A plurality of planet gears are meshed with and rotatable about the sun gear. A ring is positioned about and meshed with the planet gears. A planet carrier is connected to a center of each of the planet gears and fixed to a wheel output. A low gear clutch is moveable between an engaged position fixing the ring to a ground in the engaged position, and a disengaged position disconnecting the ring from the ground. An upshift clutch is moveable between a contact position fixing the primary axle to the wheel output, and a released position disconnecting the primary axle from direct connection with the wheel output. A controller selectively shifts the center clutch, the low gear clutch and the upshift clutch. Methods of using the driveline assembly are also provided.

An axle assembly having a gear reduction unit and an interaxle differential unit. The gear reduction unit may be operatively connected to an input shaft and may selectively provide gear reduction to a differential assembly and the interaxle differential unit. The interaxle differential unit may operatively connect the gear reduction unit to the output shaft.

A drive module includes a Ravigneaux gearset, first and second input shafts, shift member, and differential. The first planet gears of the gearset can engage the first sun gear and the second planet gears, which can engage the second sun gear. The first input shaft can rotate with the second sun gear and receives torque from a first motor. A first gear can be coupled to the carrier of the Ravigneaux gearset for rotation therewith and meshingly engages the differential input. The second input shaft receives torque from a second motor and is drivingly coupled to the differential input. When the shift member is in a first position, the shift member drivingly couples the first sun gear to a first differential output. When the shift member is in a second position, the shift member couples the first sun gear to a housing to prevent rotation of the first sun gear.

A driveline assembly for a vehicle including at least one primary shaft rotatable about an axis. At least one reducer assembly is coupled with the at least one primary shaft. The reducer assembly includes a sun gear rotatable with the primary shaft. A plurality of planet gears are rotatable about the sun gear. A ring is positioned about the planet gears. A planet carrier is rotatably connected to a center of each of the planet gears. An output shaft is fixed to the planet carrier. A sliding clutch fixes the ring to a ground in a high torque position to provide a gear reduction, and fixes the ring to the planet carrier in a low torque position to provide a 1:1 gear ratio. A method for operating such a driveline assembly is also provided.