A control apparatus for a vehicular transmission including at least one dog clutch each having a first dog member mounted on a first shaft such that the first dog member is rotated together with the first shaft, and at least one second dog member each mounted to be axially adjacent to the first dog member and rotatable relative to the first shaft, first gears each mounted to be rotatable relative to the first shaft and provided with the second dog member, second gear which are mounted such that the second gears are rotated together with a second shaft parallel to the first shaft, and which mesh with the respective first gears, and a shifting mechanism for selectively placing each dog clutch in an engaged or released state. The control apparatus includes: a first calculating portion for detecting to a rotary angular position of the first shaft, and calculating a rotary angular position of the first dog member on the basis of the detected rotary angular position of the first shaft; a second calculating portion for detecting a rotary angular position of the second shaft, and calculating a rotary angular position of each second dog member on the basis of the detected rotary angular position of the second shaft; and an engagement control portion for controlling the shifting mechanism on the basis of the rotary angular positions of the first and second dog members, for engagement of the first and second dog members with each other.

A method is provided to control a hybrid powertrain that comprises: a combustion engine; a gearbox with input and output shafts; a first planetary gear connected to the input shaft and a first main shaft; a second planetary gear, connected to the first planetary gear and a second main shaft; first and second electrical machines, respectively connected to the first and second planetary gears; one gear pair connected with the first planetary gear and output shaft; and one gear pair connected with the second planetary gear and output shaft. The method comprises: disconnecting a first planetary wheel carrier and a first sun wheel or disconnecting a second planetary wheel carrier and a second sun wheel from each other; b) controlling the combustion engine to a predetermined engine speed; and c) controlling the first and second electrical machines so that a desired torque is achieved in the output shaft, while a requested total power consumption of the first and the second electrical machines is achieved.

A motor vehicle transmission comprising a drive shaft, an output shaft, a planetary gear set system, and four shift elements. The first planet gear meshes with the first sun gear, first ring gear, and with one of the second planet gears. The second planet gear meshes with the second sun gear and second ring gear. The first sun gear has a smaller diameter than the second sun gear. The first ring gear has a larger diameter than the second ring gear, and is connected to the output shaft. The second ring gear is rotationally fixable by closing the first shift element. The drive shaft is connectable to the second sun gear by closing the third shift element. The drive shaft is connectable to the planet carrier by closing the fourth shift element. The first sun gear is rotationally fixable by closing the second shift element.

A vehicle includes an engine, a manual transmission, and a clutch that selectively couples the engine to the transmission. The clutch includes a disk biased to engage a flywheel of the engine, a first actuator that disengages the disk in response to depression of a clutch pedal, and a second actuator that disengages the disk in response to an electric signal from a vehicle controller.

A vehicle includes an engine, a manual transmission, and a clutch that selectively couples the engine to the transmission. The clutch includes a disk biased to engage a flywheel of the engine, a first actuator that disengages the disk in response to depression of a clutch pedal, and a second actuator that disengages the disk in response to an electric signal from a vehicle controller.

The present invention relates to a transmission may include a first input shaft and a second input shaft receiving power from an engine continuously or through a clutch; a sub-shifting mechanism and a main shifting mechanism including a plurality of sub-shifting gear pairs and main shifting gear pairs, which have different gear ratios and are respectively engaged with two shafts of the first and second input shafts, first and second countershafts, and first and second output shafts to select the sub-shifting gear pairs and the main shifting gear pairs, a one-way clutch that transmits power from the engine only from the first countershaft to the first output shaft; a second one-way clutch that transmits power from the engine only from the second countershaft to the second output shaft; and a power transmission gear set engaged between the first output shaft and the second output shaft.

A transmission with a common carrier planetary gear set is provided for a vehicle that has drive axle half shafts defining an axis of rotation, an electric motor/generator with a motor shaft parallel with the axis of rotation, either concentric with the axis of rotation or spaced therefrom, and a differential with a differential carrier connected with the drive axle half shafts. The planetary gear set has a first sun gear member continuously or selectively connectable with the motor shaft, first and second pinion gears, a carrier member rotatably supporting the first and the second pinion gears so that the first pinion gear meshes with the first sun gear member, and a ring gear member meshing with one of the pinion gears. The ring gear is connectable to a non-rotating housing. The carrier member is operatively connected with the differential carrier.

The invention relates to a hybrid drive having an automated conventional gearbox, for example for a motor vehicle, having an internal combustion engine (VM) which has a drive connection to at least a first transmission input shaft (W1), having an electric drive which has at least one electric machine (EM1) which has a drive connection to a second transmission input shaft (W3; W3), having at least one layshaft (W4), having freely moving wheels and fixed wheels (z11-z17, z21-z29, zR3) which are arranged in a plurality of wheel set planes (Z1-Z7), having a plurality of gear shift devices (S1-S4), and having a transmission output shaft (W2). In order to permit a high degree of variability in terms of a wheel set concept as well as the distribution and the number of electrical and internal-combustion-engine gearspeeds, to keep the expenditure on design and the costs low and to ensure efficient and comfortable operation, there is provision that the two transmission input shafts (W1, W3; W1, W3) are arranged coaxially with respect to one another, and in that in one of its shifted positions a gear shift device (S1) connects the two transmission input shafts (W1, W3; W1, W3) to one another effectively in terms of drive, and in another shifted position shifts a gearspeed.

A hybrid vehicle is provided in which in the neutral range or the parking range, power can be generated in a first power generation mode by engaging an odd-numbered position clutch so as to transmit a driving force of an engine to a motor/generator via a first input shaft, and power can be generated in a second power generation mode by engaging an even-numbered position clutch so as to transmit the driving force of the engine to the motor/generator via reversing means and the first input shaft. Therefore, according to the status of the odd-numbered position clutch and the even-numbered position clutch, by engaging either one thereof, it becomes possible to generate power in the first power generation mode or the second power generation mode, thus enabling power to be supplied without interruption.

An automated manual transmission includes: a first input shaft configured to receive rotation power from a power source via a main clutch and a second input shaft configured to always receive the rotation power from the power source. A gearbox part is configured to have a plurality of shifting gear pairs having different gear ratios engaged with the first input shaft and an output shaft and select the shifting gear pair suited for a driving speed by a synchronizer. A counter shaft is configured to be disposed in parallel with the output shaft, and an assist input gear is configured to be coupled with the counter shaft via an assist clutch and engaged with an output gear provided at the output shaft to form a gear ratio of a specific shifting stage.