An electric vehicle transmission mechanism which is applied to drive a chain wheel of an electric vehicle is provided. The electric vehicle transmission mechanism includes a transmission shaft, an output shaft, a lower bearing and an upper bearing. The transmission shaft is connected to the chain wheel and has a transmission axial direction, and the transmission shaft includes a transmission portion. The output shaft includes an output portion engaged with the transmission portion, and the output shaft has an output axial direction substantially perpendicular to the transmission axial direction. The lower bearing is sleeved on the output shaft. The upper bearing is sleeved on the output shaft and located between the lower bearing and the output portion.

A drive device for a motor vehicle has an electric drive machine which is operatively connected to a transmission via a driveshaft. The transmission has at least first and second planet gear stages and a differential stage. The first planet gear stage has a first planet gear set with planet gears rotatably arranged on a first planet gear carrier and mesh with a first sun gear and a first ring gear. The second planet gear stage has a second planet gear set with planet gears rotatably arranged on a second planet gear carrier and mesh with a second sun gear and a second ring gear. The planet gear stages are operatively connected to a double clutch device with first and second power-shift clutches, the ring gears are rigidly connected together to form a common ring gear, and the planet gear carriers are rigidly connected together to form a common planet gear carrier.

A two-speed transmission for a vehicle is provided including a planetary gear set selectively coupling an input shaft and an output shaft. The planetary gear set is configured to provide two forward gear ratios and neutral. The planetary gear set includes at least one sun gear, at least one pinion in meshing engagement with the sun gear, at least one ring gear meshingly engaged with the pinion, and a carrier. The carrier supports the pinion and is connected to the output shaft such that rotation of the carrier drives the output shaft. The two-speed transmission also includes one or more elements that rotatably couple different combinations of the sun gear, the pinion, the ring gear, the input shaft, and the carrier with one another or a ground. Such elements may include combinations of clutches, brakes, and dog clutches.

An actuator assembly comprises a rotatably drivable drive gear; a locking ring which is rotatably mounted in a stationary housing and is drivingly connected to the drive gear, wherein the locking ring is rotatable from a first rotational position into a second rotational position against a rotation stop; wherein at least one friction face pairing is provided in the power path between the drive gear and the locking ring, via which a torque can be transmitted to the locking ring by frictional forces; a first ramp ring drivable by the drive gear and a second ramp ring, which are axially supported against each other and are configured to convert rotary movement into axial movement; wherein the first ramp ring, after the locking ring has reached the rotary stop, can be further rotatably driven by the drive gear.

A method of shifting gears including providing a driveline for a vehicle. The driveline has an electric drive motor and a powershift transmission. The transmission has a first transmission stage and a second transmission stage. The method includes performing a range shift including handing over torque transmission from a range clutch of the first or second transmission to the other range clutch. The method also includes, simultaneously with the range shift, engaging one of the direction clutches of one transmission or keeping one of the direction clutches engaged.

An axle assembly that includes a sector cam. The sector cam may be rotatable about a sector cam axis and may be operatively connected to first and second shift collars. Rotation of the sector cam about the sector cam axis may control movement of the first and second shift collars.

A power train for an electric vehicle may include an input shaft to which a motor is fixedly connected; a driving gear rotatably mounted on the input shaft; an output shaft disposed in parallel to the input shaft; a driven gear fixed to the output shaft and gear-engaged with the driving gear; a planetary gear set including first, second and third rotation elements wherein the first rotation element is fixedly connected to the input shaft and the second rotation element is fixedly connected to the driving gear, and the third rotation element is restrained from rotating; a friction clutch configured for selectively connecting the input shaft to the driving gear and configured for selectively connecting the input shaft to the driving gear; and a restraining device provided to the third rotation element to implement two states so that only one-way rotation of the third rotation element of the planetary gear set is restrained or two-way rotation thereof is restrained.

A number of variations may include a product comprising an electrical machine operatively connected to a driveline module comprising a gear train having a fixed gear ratio, a first planetary gear set having multiple gear ratios operatively connected to the gear train, a second planetary gear set having a fixed gear ratio operatively connected to the first planetary gear set, and a synchronizer, wherein the synchronizer is operatively connected to the first planetary gear set and is positioned between the first and second planetary gear set; a differential operatively connected to the second planetary gear set; wherein the electrical machine selectively transmits power to the differential through the gear train, the first planetary gear set, the synchronizer, and the second planetary gear set, and wherein the synchronizer is constructed and arranged to shift the driveline module into a high range mode, a low range mode, and a neutral mode.

A duo-flex compact electrical platform for motorcycles which allows to obtain a mechanical power supply system for electric motorcycles with increased energy efficiency allied to an optimized mechanical power and torque delivery. The proposed platform has two electric motors horizontally arranged within a series of arrangements that also allow to obtain a kinematic solution with self-sufficiency that recharges itself through the use of one of the motors without overloading the other one.

A drive system with an electric machine and two gear stages, formed by gearwheels and clutches, the rotor shaft of the electric machine defining an axial overall length, within which the predominant axial length component of an intermediate shaft which runs parallel to the former with gearwheels and an oil pump and the predominant axial length component of a split output shaft which runs parallel to the other shafts with two clutches run.