In one example, a hybrid drive unit comprises an electric motor, an axle differential for connection with a further motor, a first axle half shaft and a second axle half shaft connected to the axle differential, a first clutching device and a second clutching device. The electric motor is selectively drivingly engagable with the first axle half shaft via the first clutching device and with the second axle half shaft via the second clutching device.

In one example, a hybrid drive unit comprises an electric motor, an axle differential for connection with a further motor, a first axle half shaft and a second axle half shaft connected to the axle differential, a first clutching device and a second clutching device. The electric motor is selectively drivingly engagable with the first axle half shaft via the first clutching device and with the second axle half shaft via the second clutching device.

One aspect of the disclosure relates to a sliding member. The sliding member includes: a first sliding portion having a first lubricant placed between first parts of a first friction sliding mechanism; a second sliding portion having a second lubricant placed between second parts of a second friction sliding mechanism; and a third sliding portion having a third lubricant placed between third parts of a third friction sliding mechanism. The first sliding portion is in contact with the third lubricant, and the second sliding portion is not in contact with the third lubricant. The second lubricant contains an additive containing conductive carbon, and the third lubricant contains no conductive carbon. The second lubricant contains a relatively larger amount of the conductive carbon than the first lubricant.

Drivetrain systems and methods are provided. In one example, the drivetrain system includes an interaxle differential (IAD) configured to receive power from a prime mover, a motor configured to drive a planetary gearset, and a ball ramp actuator configured to selectively engage a plurality of plates in a clutch pack of a friction clutch in response to receiving rotational input from the planetary gearset. In an engaged configuration, the friction clutch prevents speed differentiation between a first IAD output and a second IAD output.

Drivetrain systems and methods are provided. In one example, the drivetrain system includes an interaxle differential (IAD) configured to receive power from a prime mover, a motor configured to drive a planetary gearset, and a ball ramp actuator configured to selectively engage a plurality of plates in a clutch pack of a friction clutch in response to receiving rotational input from the planetary gearset. In an engaged configuration, the friction clutch prevents speed differentiation between a first IAD output and a second IAD output.

A carrier can comprise a through-port in a carrier plate. A threaded connection can comprise a threaded cap comprising a tubular body, a central port through the tubular body, and a rim clenching a face seal to the carrier plate when a nut is tightened to the threaded cap. A plenum in a case can be installed in the carrier. The case can comprise a case portion seating a piston and forming the plenum. The piston can be configured to actuate in the plenum in a first axial direction upon supply of hydraulic fluid to the plenum. A plenum port can extend from the case portion. The plenum port can be configured to communicate hydraulic fluid to the plenum to actuate the piston. The central port of the threaded connection can comprise a hydraulic tube mounted directly or indirectly to the plenum port to supply the hydraulic fluid.

A four-mode dual-motor coupled electric drive axle, including a primary drive motor, an auxiliary drive motor, a reducer, a torque vectoring (TV) coupler, a power coupling differential, a housing, and a power output mechanism. The TV coupler is switchable among disconnected mode, TV mode, and reducer mode by controlling a first clutch and a second clutch. The power coupling differential is switchable between torque coupling mode and speed coupling mode by controlling a third clutch. The electric drive axle is switchable among single-motor drive mode, TV drive mode, dual-motor torque coupling drive mode, and dual-motor speed coupling drive mode by controlling the TV coupler and the power coupling differential.

A four-mode dual-motor coupled electric drive axle, including a primary drive motor, an auxiliary drive motor, a reducer, a torque vectoring (TV) coupler, a power coupling differential, a housing, and a power output mechanism. The TV coupler is switchable among disconnected mode, TV mode, and reducer mode by controlling a first clutch and a second clutch. The power coupling differential is switchable between torque coupling mode and speed coupling mode by controlling a third clutch. The electric drive axle is switchable among single-motor drive mode, TV drive mode, dual-motor torque coupling drive mode, and dual-motor speed coupling drive mode by controlling the TV coupler and the power coupling differential.

The present invention relates to a technology in which a transition between a medium-torque transmission state and a high-torque transmission state by a limited slip differential is continuously performed during a driving process of a vehicle. The present invention introduces a limited slip differential configured to comprise: an input shaft constantly connected to a differential case of a slip differential; an output shaft selectively connected to the input shaft via a clutch pack and constantly connected to a wheel; a medium-torque transmission means for pressing a clutch plate coupled to the input shaft to press-fit the clutch pack; and a high-torque transmission means selectively engaged with the clutch plate by moving a hub coupled to the output shaft in a state where the input shaft and the output shaft are synchronized as the clutch pack is fastened, and a controlling method therefor.

The present invention relates to a technology in which a transition between a medium-torque transmission state and a high-torque transmission state by a limited slip differential is continuously performed during a driving process of a vehicle. The present invention introduces a limited slip differential configured to comprise: an input shaft constantly connected to a differential case of a slip differential; an output shaft selectively connected to the input shaft via a clutch pack and constantly connected to a wheel; a medium-torque transmission means for pressing a clutch plate coupled to the input shaft to press-fit the clutch pack; and a high-torque transmission means selectively engaged with the clutch plate by moving a hub coupled to the output shaft in a state where the input shaft and the output shaft are synchronized as the clutch pack is fastened, and a controlling method therefor.