A hybrid transmission (18) for a motor vehicle drive train (12) of a motor vehicle (10) includes: a first transmission input shaft (24) for operatively connecting the hybrid transmission to an internal combustion engine (16); a second transmission input shaft (26) for operatively connecting the hybrid transmission to a first electric prime mover (14); an output shaft (28) for operatively connecting the hybrid transmission to a drive output (32); a planetary gear set (RS) connected to the second transmission input shaft and to the output shaft; spur gear pairs (ST1, ST2, ST3) arranged in multiple gear set planes for forming gear steps; and a plurality of gear change devices with shift elements (A, B, C, D, E, F) for engaging gear steps. The output shaft is of a countershaft design, and the planetary gear set is interlockable when decoupled from the first transmission input shaft.

A transmission of an internal combustion engine in which the shaft length of a main shaft can be shortened to eliminate a supporting wall around a reduction gear while a thrust load is received. Around a main shaft of a transmission of an internal combustion engine, a primary bearing is fastened to an inside of a primary driven gear, and is disposed between the primary driven gear and the main shaft. A collar member is disposed between the primary bearing and a main bearing. A step portion, in contact with the main bearing, is formed on the main shaft on an opposite side of the main bearing from the collar member. A cylindrical portion, an inner race of the primary bearing, the collar member, and an inner race of the main bearing are fastened to the side of the step portion.

A powershift transmission includes an input shaft, an output shaft arranged parallel with the input shaft, a branching unit arranged on the input shaft through which a torque acting on the input shaft is divided between two power paths, a switch group including at least two switching stages arranged in the first power path, and a torque converter arranged in the second power path. A torque is transmitted from the input shaft to the output shaft via the switch group and the torque converter.

A method for controlling an electric oil pump (EOP) of a torque assist automated manual transmission (AMT) using a multi-plate wet clutch and a dry clutch, may include correcting an EOP operating line on a shifting pattern graph such that the EOP operates prior to up-shifting from a first gear to a second gear while driving in the first gear.

A transmission for a hybrid vehicle includes an input shaft connected to an engine, an output shaft disposed in parallel with the input shaft, a first hollow shaft installed on an outer peripheral surface of one side of the input shaft, a second hollow shaft installed on an outer peripheral surface of the other side of the input shaft, a first motor connected to the first hollow shaft, a second motor connected to the second hollow shaft, a first speed-shifting output part provided between the first hollow shaft and the output shaft, a second speed-shifting output part provided between the second hollow shaft and the output shaft, a first synchronizer synchronously connecting the first hollow shaft to the first speed-shifting output part, and a second synchronizer synchronously connecting the second hollow shaft to the second speed-shifting output part.

A hybrid drive train (10) for a motor vehicle, includes a dual clutch assembly (14) with a first clutch (K1) and a second clutch (K2) having a shared input element (EG) connectable to an internal combustion engine (12). The first clutch (K1) includes a first output element (AG1), and the second clutch (K2) includes a second output element (AG2). A transmission arrangement (16) includes a first sub-transmission (32) and a second sub-transmission (34). An input shaft (24) of the first sub-transmission (32) is connected to the first output element (AG1), and an input shaft (26) of the second sub-transmission (34) is connected to the second output element (AG2). The dual clutch assembly (14) also includes a third clutch (K3) for connecting the first sub-transmission (32) and the second sub-transmission (34), a first electric machine (56) connected to the first input shaft (24), a second electric machine (60) connected to the second input shaft (26), and a control device (22) for actuating the dual clutch assembly (14), the transmission arrangement (16), the third clutch (K3), and the first electric machine (56) and the second electric machine (60).

A variable speed drive wherein an impact to be transmitted to an inputting mechanism is absorbed. A shift spindle has an input side end portion to which an inputting mechanism is connected and an output side end portion supported for rotation at a transmission side supporting portion provided on a transmission case. A master arm is positioned between the input side end portion and the output side end portion in an axial direction of the shift spindle. An extension collar member is fixed integrally to the master arm. The extension collar member connects the master arm and a connection portion provided at a location of the shift spindle rather near to the input side end portion than the output side end portion. The extension collar member extends from the connection portion toward the master arm with a gap left from an outer circumferential face of the shift spindle.

A transmission unit includes: input shafts, each of the input shafts being provided with a shift driving gear thereon; output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving gear; a generator gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with the generator gear; a second motor power shaft gear disposed on the motor power shaft and configured to rotate together with a shift driven gear; a reverse idler gear; and a reverse output gear configured to rotate together with a shift driving gear via the reverse idler gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.