A planetary differential device includes first and second sun gears coaxially arranged in relation to each other and defining a main axis. First and second planetary gears mesh with the first and second sun gears and mesh with each other in pairs. A planet carrier has two side disks, and the planetary gears are rotatably arranged in the planet carrier. A coupling gear is arranged coaxially to the main axis and is rigidly connected to the planet carrier. The side disks are respectively connected to the coupling gear in a material fit and form a receiving housing with a housing inner space, at least one of the side disks includes an assembly opening through which the planetary gears and the sun gears can be inserted into the inner space of the housing.

An electric axle is configured to selectively enable an electric motor to power a drive shall of a vehicle. The electric axle includes a differential planetary gearset configured to transmit drive torque to a drive shaft. The differential planetary gearset has a sun gear configured to circumscribe the drive shaft. A clutch is configured to selectively non-rotatably couple the sun gear to the drive shaft. The clutch may include a sleeve moveable in an axial direction.

A powertrain may include drive gears provided in an input shaft; an output shaft configured such that a differential is connected thereto; a first driven gear and a second driven gear rotatably provided in the output shaft to be engaged with the drive gears to form respective gear stages; a first clutch and a second clutch; two driveshafts provided to output power in opposed directions from the differential; and a third clutch configured to change a connection relationship among a selected driveshaft of the two driveshafts, the second driven gear, and the output shaft by sliding along an axial direction of the input shaft while being connected to the output shaft via the second clutch.

A disconnect assembly, including: a selector; a first clutch including a first sleeve; and a second clutch including a second sleeve. In a drive mode, the first sleeve non-rotatably connects a first drive gear and a first axle of a first drive train, and the second sleeve is non-rotatably connects a second drive gear to a second axle of a second drive train. In a disconnect mode, relative rotation between the first drive gear and the first axle is enabled and relative rotation between the second drive gear and the second axle is enabled. To transition from the drive mode to the disconnect mode, the selector is displaced by an actuator, the selector is arranged to disconnect the first annular sleeve from the first drive gear or the first axle, and the selector is arranged to disconnect the second annular sleeve from the second drive gear or the second axle.

A cap for a helical LSD is provided with: a clutch member including clutch teeth; a clutch ring including a ring portion including clutch teeth so as to mesh with the clutch member and one or more tab portions projecting radially outwardly from the ring portion; a cap main body fixed on an axial end of the casing; a receding portion of the cap main body receding from a first face toward a second face and being so dimensioned as to receive and allow the clutch ring to be axially movable, the receding portion including one or more dock portions respectively receiving the tab portions; an opening to allow access to the tab portions; side faces of the tab portions and inner faces of the dog portions so that the faces in combination axially press the clutch ring toward the clutch member; and one or more base portions.

Some embodiments are directed to a differential including: a left-side planetary gear set having a sun gear configured to receive rotational drive input from a drive source, a ring gear in a torque connection with an electric motor and a carrier gear configured to be operatively coupled with a left-side vehicle drive member in a torque connection; a right-side planetary gear set having a sun gear configured to receive rotational drive input from the drive source, a ring gear in a torque connection with the electric motor and a carrier gear configured to be operatively coupled with a right-side vehicle drive member in a torque connection; wherein the sun gears of the left and right side planetary gear sets are rotationally fixed relative to each other and, in use, the amount of power transferred between the drive source and each of the respective drive members can be selectively controlled.

An electric axle is configured to selectively enable an electric motor to power a drive shall of a vehicle. The electric axle includes a differential planetary gearset configured to transmit drive torque to a drive shaft. The differential planetary gearset has a sun gear configured to circumscribe the drive shaft. A clutch is configured to selectively non-rotatably couple the sun gear to the drive shaft. The clutch may include a sleeve moveable in an axial direction.

An electric axle is configured to selectively enable an electric motor to power a pair of drive shafts of a vehicle. The electric axle includes a planetary gearset configured to drivably couple an electric motor with first and second drive shafts coaxially arranged. The planetary gearset including a ring gear. A housing at least partially surrounds the planetary gearset and is configured to be grounded to the vehicle. A clutch is configured to selectively ground the ring gear with the housing to enable an electric motor to power the first and second drive shafts. The electric axle may include a second planetary gearset, namely a differential planetary gearset. The differential planetary gearset may include a carrier that is shared or common amongst the planetary gearset and the differential planetary gearset.

A differential device includes: first and second side gears disposed side by side in the rotational axis direction; a pinion gear set in which two second pinion gears are meshed with a first pinion gear; and a housing that holds the pinion gear set. The first pinion gear has an axially one end-side gear portion meshed with the first side gear, and an axially other end-side gear portion meshed with the two second pinion gears. The axially one end-side gear portion and the axially other end-side gear portion are integral with each other. The two second pinion gears are meshed with the second side gear at positions away from each other in the circumferential direction of the second side gear. The axially other end-side gear portion of the first pinion gear is meshed with the two second pinion gears at positions on the radially outer side of the second side gear.

The power distribution device includes: a double pinion first planetary gear mechanism including a first sun gear, a first carrier, and a first ring gear; and a double pinion second planetary gear mechanism including a second sun gear, a second carrier, and a second ring gear. The first sun gear and the second carrier are connected to each other and connected to a first motor, and the first carrier and the second sun gear are connected to each other and connected to a second motor. The first ring gear and the second ring gear are respectively connected to a right output shaft and a left output shaft, and a gear ratio of the first ring gear to the first sun gear and a gear ratio of the second ring gear to the second sun gear are set to the same value.