An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a gearbox housing having a front end, a side and a rear end, with the front end adapted to be joined to the clutch housing. There is an input shaft contained at least in part within the gearbox housing proximate to the front end of the gearbox housing, and a primary gear train that includes (a) a lay shaft; (b) a drive shaft; and (c) a plurality of selectively engaged meshed gear pairs respectively mounted on the lay shaft and the drive shaft for transmitting rotational force from the lay shaft to the drive shaft. The inline gearbox also includes an output shaft contained at least in part within the gearbox housing proximate to the rear end of the gearbox housing, with the output shaft rotationally coupled to the drive shaft. The inline gearbox features a fast-change gear assembly contained within the gearbox housing, where the fast-change gear assembly is positioned proximate the front end of the gearbox housing and interposed between the input shaft and the lay shaft, with the fast-change gear assembly comprising a first fast-change gear and a second fast-change gear meshing with the first fast-change gear, and with the first fast-change gear and the second fast-change gear each having an axis generally parallel to the axis of the input shaft. The first fast-change gear is rotationally coupled to the input shaft so as to rotate with the rotation of the input shaft, and translationally uncoupled to the input shaft to permit removal of the first fast-change gear from the gearbox housing; and the second fast-change gear is rotationally coupled to the lay shaft so as to rotate the lay shaft upon rotation of the second fast-change gear, and translationally uncoupled to the lay shaft to permit removal of the second fast-change gear from the gearbox housing.

A power transmission apparatus includes: an input shaft, an output gear; a compound planetary gear set including a first planetary gear set including first, second and third rotation elements, and a second planetary gear set including fourth, fifth and sixth rotation elements; a first shaft fixedly connected with the first rotation element and the fourth rotation element and selectively connected with the input shaft; a second shaft fixedly connected with the fifth rotation element, and selectively connected with the input shaft and a transmission housing; a third shaft fixedly connected with the second rotation element, the sixth rotation element and the output gear; a fourth shaft fixedly connected with the third rotation element; an intermediate shaft; a first gear set transmitting the torque from the input shaft to the intermediate shaft; and a second gear set selectively transmitting the torque from the intermediate shaft to the fourth shaft.

A power transmission apparatus includes a first input shaft selectively receiving an input torque, a second input shaft coaxially disposed with the first input shaft and selectively receiving the input torque, first and second intermediate shafts selectively interconnected and disposed in parallel with the first input shaft, a torque mediating shaft coaxially disposed with the first input shaft, a preliminary shifting section receiving a torque through a first input shaft and selectively outputting a shifted torque to the second intermediate shaft, a compound shifting section including a planetary gear set having a sun gear fixedly connected with the torque mediating shaft, a planet carrier fixedly connected with the second input shaft, and a ring gear externally gear-meshed with the second intermediate shaft, and an output shaft receiving a torque received from the compound shifting section and transmitting the received torque to a differential.

A power transmission apparatus for a vehicle is disclosed. The power transmission apparatus includes a first input shaft selectively connected to an engine output shaft through a first clutch, a second input shaft configured as a hollow shaft that is disposed on the outer circumference of the first output shaft without rotational interference and selectively connected to the engine output shaft through a second clutch, a third input shaft configured as a hollow shaft that is disposed on the outer circumference of the second output shaft without rotational interference and selectively connected to the engine output shaft through a third clutch. The transmission apparatus further comprises an output shaft placed parallel to the first, second, and third input shafts at a certain distance.

A road vehicle with hybrid drive having: at least one pair of drive wheels; an internal combustion engine; a reversible electric machine; and a dual-clutch transmission. The dual- clutch transmission has: a first primary shaft and a second primary shaft; a first clutch interposed between the internal combustion engine and the first primary shaft; and a second clutch interposed between the internal combustion engine and the second primary shaft; a third clutch, which is interposed between a shaft of the electric machine and the first primary shaft so as to connect/disconnect the shaft of the electric machine to/from the first primary shaft; and a fourth clutch, which is interposed between the shaft of the electric machine and the second primary shaft so as to connect/disconnect the shaft of the electric machine to/from the second primary shaft.

A planetary gear train of an automatic transmission for a vehicle may include: an input shaft; an output shaft disposed in parallel with the input shaft; a first planetary gear set having first, second, and third rotation elements; a second planetary gear set having fourth, fifth, and sixth rotation elements; a first shaft fixedly connected to the first rotation element and selectively connected to the input shaft and a transmission housing; a second shaft fixedly connected to the second rotation element; a third shaft fixedly connected to the third rotation element; a fourth shaft selectively connected to the input shaft; a fifth shaft fixedly connected to the fourth rotation element and fixedly connected to the output shaft; a sixth shaft fixedly connected to the fifth rotation element; and a seventh shaft fixedly connected to the sixth rotation element, selectively connected to the fifth shaft.

Methods and systems for generating control instructions for a plurality of transmissions having dissimilar gear configurations via a common software framework are described. In one example, the common software framework provides a graphic interface whereby a user/implementer describes configurations of different transmissions. The software framework generates instructions for different transmission controllers that shift the transmissions.

A hybrid sub-assembly for driving a vehicle includes at least one primary shaft, at least one secondary shaft, a transmission gearbox including at least one intermediate shaft different from the primary shaft and the secondary shaft, and an electromotive unit. The electromotive unit includes at least one reversible electric machine, and a coupling device that can take up at least one intermediate coupling position in which an output shaft of the reversible electric machine is kinematically connected to the intermediate shaft, and a secondary coupling position in which an output shaft of the reversible electric machine is kinematically connected to the secondary shaft without going via the intermediate shaft.

A power transmission apparatus for a vehicle includes: an engine output shaft; a first transmission outputting torque shifted to two shift stages to a central output shaft; and a second transmission outputting torque shifted to multiple shift stages. The second transmission includes: a first input shaft disposed on the same shaft line as that of the central output shaft; a second input shaft disposed on an outer circumference of the first input shaft a third input shaft disposed in parallel with the first and second input shafts; an idle shaft disposed in parallel with the first and second input shafts and spaced apart from the first and second input shafts; and an output shaft disposed in parallel with the first and third input shafts and the idle shaft between the first and third input shafts and the idle shaft.

A transmission (G) for a motor vehicle includes an input shaft (GW1), an output shaft (GW2), a front-mounted gear set (VRS) with a first planetary gear set (P1) and a second planetary gear set (P2), a main gear set (HRS), an electric machine (EM) with a stator (S) and a rotor (R), and a plurality of shift elements. By selective engagement of three of the shift elements in each case, a plurality of fixed transmission ratios between the input shaft (GW1) and the output shaft (GW2) are shiftable. The two planetary gear sets (P1, P2) of the front-mounted gear set (VRS) include, in addition to the first shaft (Wx1) and the second shaft (Wx2), precisely three further shafts, namely a third shaft (Wx3), a fourth shaft (Wx4), and a fifth shaft (Wx5). A drive train for a motor vehicle may include such a transmission (G).