There is provided a motorcycle. A crankshaft extends in a width direction of the motorcycle. An engine case pivotally supports the crankshaft. A counter shaft is arranged in parallel with the crankshaft. A clutch mechanism is arranged at one end of the counter shaft and configured to transmit and disconnect rotation of the crankshaft to and from the counter shaft. A clutch actuator performs a disconnection/connection operation of the clutch mechanism. A shift mechanism is arranged below the counter shaft and configured to shift and transmit the rotation of the crankshaft to a driving wheel. A shift actuator performs a shift operation of the shift mechanism. A generator is arranged at one end of the crankshaft. The clutch actuator and the shift actuator are arranged around a cover member mounted to the engine case and accommodating therein the clutch mechanism or the generator.

A gear shifting apparatus for a multi-speed transmission for an electric vehicle includes a shifting unit controlling gear shifting by a torque of an actuator, and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to a first driven gear and a second driven gear through a drive gear externally gear-meshed with the driven gears, and the shifting unit includes: a shift fork slidably mounted on a fork rail and activating the gear shifting; a profile drum connected to the first driven gear externally engaged with the drive gear, and having a profile groove formed along an exterior circumference of the profile drum; and a shift lug integrally formed with the shift fork and coupled with the profile groove.

In a shift device, as a result of lower sliding projections of a lever moving slidingly against lower sliding plates of soft materials, the slidability of the lever is improved. Moreover, as a result of restricting projections of the lever being abutted against stoppers of the soft materials, noise generated when a sliding motion of the lever is restricted is reduced. Additionally, because the lower sliding plates and the stoppers are formed integrally with each other, the structure can be simplified.

A shift device that causes a transmission device to shift in response to a shift operation of a shift pedal includes a shift shaft configured to rotate in response to the shift operation of the shift pedal, a shift cam configured to rotate in a manner of being capable of changing a coupling state of a shift gear of the transmission device, a drive plate configured to move the shift cam in response to the rotation of the shift shaft, and a lost motion mechanism interposed between the shift shaft and the drive plate. The lost motion mechanism is attached to one end portion of the shift shaft and absorbs the rotation of the shift shaft to delay power transmission to the drive plate.

A shifting device for a hybrid drive system of a motor vehicle, with a centrally arranged shaft, a first gear wheel rotatably mounted relative to the shaft and a second gear wheel rotatably mounted relative to the shaft and offset along the shaft relative to the first gear wheel, a sliding sleeve slidably received directly in the first gear wheel and non-rotatably connected thereto, which sliding sleeve is configured such that, in a first displacement position, it connects the shaft in a rotationally fixed manner to the first gear wheel, while the second gear wheel is rotationally decoupled from the shaft, and in a second displacement position, it rotationally connects the shaft to both the first and second gear wheels, and in a third displacement position, it rotationally connects the two gear wheels to each other while the shaft is rotationally decoupled from the two gear wheels.

The present disclosure provides a power drive system and a vehicle. The power drive system includes an engine; a plurality of input shafts, the engine is arranged to be selectively engaged with at least one of the plurality of input shafts, and a plurality of gear driving gears are arranged on each of the input shafts; a plurality of output shafts, a plurality of gear driven gears are arranged on each of the output shafts, the plurality of gear driven gears are correspondingly meshed with the plurality of gear driving gears, and one of the plurality of output shafts is provided with a reverse output gear in an idly sleeving manner and is further provided with a reverse-gear synchronizer for engaging with the reverse output gear; a reverse shaft, the reverse shaft is arranged to be linked with one of the plurality of input shafts and further linked with the reverse output gear; a motor power shaft, a motor-power-shaft first gear and a motor-power-shaft second gear are arranged on the motor power shaft in an idly sleeving manner, and a motor power shaft synchronizer located between the motor-power-shaft first gear and the motor-power-shaft second gear is further arranged on the motor power shaft, where the motor-power-shaft second gear is arranged to be linked with one of the plurality of gear driving gears; and a first motor generator, the first motor generator is arranged to be linked with the motor power shaft.

There is provided a drive power transmitting mechanism that can transmit drive power losslessly and can be used in environments where silence is required. The drive power transmitting mechanism includes a rotor having a first outer circumferential surface and rotatable about a first rotational axis, a rotor having a second outer circumferential surface pressed against the first outer circumferential surface and rotatable about a second rotational axis due to a frictional force produced between the second outer circumferential surface and the first outer circumferential surface, a gear rotatable in unison with the rotor about the first rotational axis, and a gear rotatable in unison with the rotor about the second rotational axis, in which the gear and the gear are brought into mesh with each other when the second outer circumferential surface slips against the first outer circumferential surface.

A shift device that causes a transmission device to shift in response to a shift operation of a shift pedal includes a shift shaft configured to rotate in response to the shift operation of the shift pedal, a shift cam configured to rotate in a manner of being capable of changing a coupling state of a shift gear of the transmission device, a drive plate configured to move the shift cam in response to the rotation of the shift shaft, and a lost motion mechanism interposed between the shift shaft and the drive plate. The lost motion mechanism is attached to one end portion of the shift shaft and absorbs the rotation of the shift shaft to delay power transmission to the drive plate.

Provided is a shift control arrangement in a gearbox, comprising a first shift rod with a first end part connectable to a first power means and second end part connected to a first shift fork; a second shift rod with first end part connectable to a second power means and second end part connected to a second shift fork; a first set of grooves in the first shift rod, a second groove in the second shift rod; and a lock pin between the first and second shift rods, which lock pin, with the first set of grooves and the second groove restrict and/or allow axial movement of the respective first and second shift rods. The first end part of the first shift rod is provided with an axial directed cut out for non-conflicting with the lock pin, and the first end part of the second shift rod is provided with a control surface for axial movement of the lock pin.

A compact and efficient rotary shift actuator for a shift-by-wire transmission includes a motor having a motor shaft that is rotatable about a motor axis, an output head arranged towards a second end of an output lever and adapted for connection with a shift shaft of a transmission, and a gear train for transferring torque from the motor shaft to the output head. The gear train comprises a first shaft rotatable about a first axis, a second shaft rotatable about a second axis, and the output lever pivotable about a lever axis. The gear train further includes a worm gear for transmitting torque from the first shaft to the second shaft.