An electric drive transmission system includes a disconnecting differential. The disconnecting differential comprises a first one-way clutch, a second one-way clutch and an interruption device. The first one-way clutch and the second one-way clutch have opposite locking directions and are coaxially sleeved between a planet carrier and a differential housing. The interruption device comprises a power section and an interruption section, wherein the power section is located on an inner wall of a reduction gearbox, and wherein the interruption section is located on the differential housing and can shift, under the action of the power section, all rolling elements of the one-way clutch locked in a forward rotation coasting condition, thereby realizing selective releasing of the locking function of the one-way clutch.

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 arrangement in a vehicle having front and rear ground engaging means and steering means, has a differential transmission, a differential lock, a planetary final drive on each side of the vehicle and a motor acting onto one member of the planetary final drives. The motor is controlled depending on the steering angle such, that it provides for a difference in the drive speed on the left and the right side.

A power transmission system includes a power source, a first power transmission distribution device, a first load and a second load. A power outputted by the power source is transmitted to the first power transmission distribution device, is divided into a first transmission power and a second transmission power through the first power transmission distribution device, and is transmitted to the first load and the second load, respectively. The transmission direction for the power to be inputted to a first power input end is perpendicular to the transmission direction of the first transmission power and the second transmission power, and the transmission direction of the first transmission power is opposite to the transmission direction of the second transmission power.

A power transmission system includes a power source, a first power transmission distribution device, a first load and a second load. A power outputted by the power source is transmitted to the first power transmission distribution device, is divided into a first transmission power and a second transmission power through the first power transmission distribution device, and is transmitted to the first load and the second load, respectively. The transmission direction for the power to be inputted to a first power input end is perpendicular to the transmission direction of the first transmission power and the second transmission power, and the transmission direction of the first transmission power is opposite to the transmission direction of the second transmission power.

An apparatus for an air turbine starter for an engine. The air turbine starter includes a housing defining an inlet, an outlet, and a flow path extending between the inlet and the outlet for communicating a flow of gas there through. A turbine member is journaled within the housing and disposed within the flow path for rotatably extracting mechanical power from the flow of gas and having a turbine output shaft. The air turbine starter further includes a planetary gear system drivingly coupled with the turbine output shaft and including a sun gear, a ring gear mounted to the housing, and a set of planetary gears operably coupling the sun gear and the ring gear with the sun gear is coupled to the turbine output shaft.

An apparatus for an air turbine starter for an engine. The air turbine starter includes a housing defining an inlet, an outlet, and a flow path extending between the inlet and the outlet for communicating a flow of gas there through. A turbine member is journaled within the housing and disposed within the flow path for rotatably extracting mechanical power from the flow of gas and having a turbine output shaft. The air turbine starter further includes a planetary gear system drivingly coupled with the turbine output shaft and including a sun gear, a ring gear mounted to the housing, and a set of planetary gears operably coupling the sun gear and the ring gear with the sun gear is coupled to the turbine output shaft.

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.

A differential assembly includes one or more NVH-modifying elements that alter and/or reduce at least one of a noise, vibration, and harshness emitted from the differential assembly. The NVH-modifying element(s) are placed in engagement with the side gears of the differential assembly to modify and/or reduce the NVH of the differential assembly.