An electric drivetrain including an electric machine and at least one output pinion intended to be connected to an axle differential, and at least one speed reduction device including a first gear train and a second gear train intended to drive the output pinion in rotation in a first rotational direction or a second rotational direction.

A driving device for a vehicle includes: an electric motor including a motor shaft having a hollow tubular shape; an output shaft passed through the motor shaft; a transmission mechanism configured to change the speed of rotation of the motor shaft and transmit a driving force of the electric motor to the output shaft; and a housing in which the electric motor and the transmission mechanism are accommodated. The output shaft is offset inside the motor shaft so that a rotation axis of the output shaft deviates from a rotation axis of the motor shaft in the radial direction of the electric motor.

A track assembly that has a drive shaft providing torque to the track assembly, a first drive wheel, a second drive wheel, and a gear assembly rotationally coupling both the first drive wheel and the second drive wheel to the drive shaft.

An electric drive unit includes an electric motor, a differential assembly, and a double-helical gearset positioned between and interconnecting the electric motor and the differential assembly and adapted to transfer rotational motion from the electric motor to the differential assembly, the double-helical gearset including a driving double-helical gear rotationally mounted onto a transfer shaft of the electric motor and including a right-hand helix, a left-hand helix and a gap extending circumferentially between the right-hand helix and the left-hand helix, and a driven double-helical gear rotationally mounted onto a housing of the differential assembly and including a right-hand helix, a left-hand helix and a gap extending circumferentially between the right-hand helix and the left-hand helix, and a park gear positioned within the gap between the right hand helix and the left hand helix of one of the driving double-helical gear and the driven double-helical gear, wherein one of the driving double-helical gear and the driven double-helical gear is axially moveable.

A mobile device includes a body, a motor, a transmission assembly and two driven components. The motor and the transmission assembly are disposed at the body. The transmission assembly includes a differential, two shafts and two stoppers. The differential is coupled to the motor. The two shafts are respectively coupled to the two opposite sides of the differential. The two stoppers are respectively disposed corresponding to the two shafts. The two driven components are respectively connected to the two shafts. When one of the two shafts is locked by the corresponding stopper, the motor may still drive the other shaft and the driven component connected thereto to rotate relative to the body through the differential. A transmission assembly is also provided.

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 method, system and computer program product for generating answers to questions. In one embodiment, the method comprises receiving an input query; conducting a search to identify candidate answers to the input query, and producing a plurality of scores for each of the candidate answers. For each of the candidate answers, one, of a plurality of candidate ranking functions, is selected. This selected ranking function is applied to the each of the candidate answers to determine a ranking for the candidate answer based on the scores for that candidate answer. One or more of the candidate answers is selected, based on the rankings for the candidate answers, as one or more answers to the input query. In an embodiment, the ranking function selection is performed using information about the question. In an embodiment, the ranking function selection is performed using information about each answer.

A transmission device for a motor vehicle includes a first connecting shaft operatively connectable to a first subaxle of a wheel axle of the motor vehicle; a second connecting shaft operatively connectable to a second subaxle of the wheel axle; a coupling transmission having a drive shaft operatively connectable with a drive aggregate of the motor vehicle, and an output shaft operatively connectable with the first wheel axle, wherein via the coupling transmission the drive shaft is operatively connected with the output shaft and with the first and the second connecting shaft for torque distribution; and a superposition transmission, wherein the output shaft is operatively connectable with at least one of the first connecting shaft and the second connecting shaft via the superposition transmission by shifting the superposition transmission.

Methods and systems for nacelle door electromechanical actuation may include a power distribution unit comprising a motor and differential gears; and a plurality of electromechanical actuators, each coupled to an output of a corresponding one of the differential gears. Each of the electromechanical actuators may include a configurable brake and a mechanical output, where the power distribution unit may provide mechanical torque to one of the electromechanical actuators via the motor and the differential gears based on configuration of the configurable brakes in each of the electromechanical actuators. At least one of the configurable brakes may be an electrically configurable brake. At least one of the configurable brakes may be a mechanically configurable brake. The differential gears may include two or more differential gears for receiving an input torque and supplying an output torque to one of a plurality of outputs of the differential gears.

A transaxle and a two-speed drive module thereof. The two-speed drive module comprises an input shaft, an output shaft, and gear sets used for transmitting power between the input shaft and the output shaft. The gear sets comprise: a two-speed gear set having two groups of shift gear pairs that have different speed ratios, the shift gear pairs being capable of transmittingly connecting to or disconnecting from the input shaft so as to output the rotational speed of the input shaft at different speed ratios; a planetary gear set having an output end thereof being transmittingly connected to the output shaft; and a connecting gear set by which the two-speed gear set is transmittingly connected to the planetary gear set. The two-speed drive module can implement a reduction in the radial dimension, and can reduce the ground clearance of a transaxle.