A drive axle system having a planetary interaxle differential unit. A shift collar may be movable along an axis between a first position and a second position. The shift collar may operatively connect a sun gear to a drive pinion when in the first position. The shift collar may operatively connect the sun gear to a planet carrier when in a second position.

A drive axle system having a planetary interaxle differential unit. A shift collar may be movable along an axis between a first position and a second position. The shift collar may operatively connect a sun gear to a drive pinion when in the first position. The shift collar may operatively connect the sun gear to a planet carrier when in a second position.

Mechanical interconnection of multiple rotatable devices that includes: a gear train, at least three rotatable devices, one or more first stages, and one or more second stages, a first element, i.e. a geared element or a planet carrier, of one of the second stages forming a torque resisting means being blocked or impeded in a controllable way. The third rotatable device interacting with a second element, i.e. a gearwheel, or a planet carrier, of one of the second stages.

A domino-type torque generator includes a base member, and a plurality of toppling members pivotally connected to the base member. Each toppling member is pivotable from an upright position to an inclined position, or from the inclined position directly to an opposite inclined position, about a torque shaft extending transversely through a lower end portion of each toppling member. One end of each torque shaft is provided with a pinion. A first differential gear is connected to the pinions to accumulate torques applied on the torque shafts by toppling of the toppling members. A rotating cage of the first differential gear is the output, and is directly or indirectly connected to one of the side gears of the next differential gear, which is used to accumulate output torque from the first differential gear. A drive mechanism is configured to repeatedly drive the toppling members to topple, thereby continuously generating torques.

A domino-type torque generator includes a base member, and a plurality of toppling members pivotally connected to the base member. Each toppling member is pivotable from an upright position to an inclined position, or from the inclined position directly to an opposite inclined position, about a torque shaft extending transversely through a lower end portion of each toppling member. One end of each torque shaft is provided with a pinion. A first differential gear is connected to the pinions to accumulate torques applied on the torque shafts by toppling of the toppling members. A rotating cage of the first differential gear is the output, and is directly or indirectly connected to one of the side gears of the next differential gear, which is used to accumulate output torque from the first differential gear. A drive mechanism is configured to repeatedly drive the toppling members to topple, thereby continuously generating torques.

Systems are provided for a differential of an electric powertrain. In one example, a system includes a portal axle coupled to only one side of a differential, the portal axle comprising a first axle and a second axle coaxial with one another.

Systems are provided for a differential of an electric powertrain. In one example, a system includes a portal axle coupled to only one side of a differential, the portal axle comprising a first axle and a second axle coaxial with one another.

An automatic torque transmission with one or more stages, where each stage has a number of available gear ratios. There is a planetary gear train comprising a planet gear on a planet gear carrier, a sun gear, and a ring gear, wherein an input to the planetary gear train is through the planet gear carrier, and wherein the planet gear is configured to drive the sun gear at higher speed and lower torque, and the ring gear at lower speed and higher torque. There is a first differential gear train having a first input side, a second input side, and an output, wherein the sun gear is coupled to the first input side of the first differential gear train and the ring gear is coupled to the second input side of the first differential gear train, thereby combining two inputs into a single output. A brake clutch is configured to be selectively coupled to the ring gear, to provide selective braking of the ring gear so as to selectively transfer drive from the ring gear to the sun gear. A one-way clutch is configured to be selectively engaged or disengaged from the sun gear, to selectively prevent rotation of the sun gear in one direction. The output of the differential gear train is coupled to either another stage of the transmission or to an output differential gear train. The output differential gear train is configured to be locked for forward drive or coupled to a housing for reverse drive. With the one-way clutch disengaged the sun gear will freewheel by rotating in reverse, with no output.

A drive device capable of suppressing the complication of the device configuration in order to realize a plurality of operation modes is provided.

A drive device includes a drive source, a first differential mechanism, a second differential mechanism, a switching mechanism, and a casing. The differential mechanism includes a first side gear connected to a left wheel, a first case connected to the drive source, and a second side gear. The second differential mechanism includes a third side gear connected to a right wheel, a second case, and a fourth side gear connected to the second side gear. The switching mechanism switches the casing, the first case, the second side gear, and the fourth side gear to a connection state and a non-connection state.

A drive device capable of suppressing the complication of the device configuration in order to realize a plurality of operation modes is provided.

A drive device includes a drive source, a first differential mechanism, a second differential mechanism, a switching mechanism, and a casing. The differential mechanism includes a first side gear connected to a left wheel, a first case connected to the drive source, and a second side gear. The second differential mechanism includes a third side gear connected to a right wheel, a second case, and a fourth side gear connected to the second side gear. The switching mechanism switches the casing, the first case, the second side gear, and the fourth side gear to a connection state and a non-connection state.