A motor vehicle transmission having at least two sub-transmissions, each with at least one input shaft. The input shafts are arranged on an input side on an input axis. The two sub-transmissions have a single output shaft. A countershaft assembly having two countershafts aligned on a countershaft axis. A main shaft arranged on the input axis can be connected, via range groups, to the output shaft. At least one of the input shafts can connect to the output shaft via at least one of a gear plane, a shift element and the main shaft. At least three shift devices are arranged with at most one of the shift devices is arranged on the countershaft axis. The first three shift devices are arranged, relative to torque flow, downstream of the input side of the transmission on the input axis.

A hybrid drive having a clutch and a rotary electric machine disposed radially outwardly of the clutch so as to at least partially overlap the clutch in an axial direction as seen from a radially outer side, the rotary electric machine having a stator fixed to a case and a rotor coupled to the input member of the automatic transmission device. A clutch lubricating oil hole formed in a center shaft that extends at a center portion of the clutch and the rotary electric machine. A rotary electric machine lubricating oil hole formed in the center shaft. Separation means for separating lubricating oil such that lubricating oil from the clutch lubricating oil hole is led to the clutch and lubricating oil from the rotary electric machine lubricating oil hole is led to the rotary electric machine.

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 drive apparatus includes a rotary electric machine including a rotor capable of transmitting driving force to at least a speed change mechanism and a rotor hub that holds the rotor; a clutch; an oil hole that supplies oil from a radial inner side of the clutch toward the clutch; and a partition member disposed with a clearance provided in at least a portion in a circumferential direction between the rotor hub and the partition member on a radial inner side of the rotor hub.

A dual-clutch seven speed transmission arrangement and method for use with a transverse engine arrangement in a hybrid vehicle are provided. The dual-clutch seven speed transmission arrangement includes a dual-clutch gearbox comprising an input shaft for odd drive gears and an input shaft for even drive gears, respectively arranged in connection to a first clutch and a second clutch. The input shaft for even drive gears is a hollow shaft enclosing the input shaft for odd drive gears and the input shaft for odd drive gears is arranged to host four odd drive gears. The input shaft for even drive gears is arranged to host three even drive gears and a reverse drive gear. An electric motor is connected to the input shaft for even drive gears.

A system for venting a hybrid electric powertrain includes a module defining a first volume containing a clutch and an electric machine, a housing defining a second volume containing an automatic transmission, and lines producing mutual pneumatic connections among the first volume, the second volume and ambient atmosphere.

A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes: an engine unit configured to generate power; a transmission unit adapted to selectively couple with the engine unit, and configured to transmit the power generated by the engine unit; a first motor generator coupled with the transmission unit; an output unit configured to transmit the power output by the transmission unit to at least one of front and rear wheels of the vehicle; a power switching device adapted to enable or interrupt a power transmitting between the transmission unit and the output unit; and a second motor generator configured to drive the at least one of the front and rear wheels.

A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes an engine unit configured to generate power, input shafts to receive power from the engine unit, an output shaft configured to transfer the power from the input shafts, linked gears rotatable differentially relative to the output shaft and configured to mesh with driving gears on the input shafts, an output unit fixed on the output shaft and configured to transmit the power to the front wheels of the vehicle, a synchronizer disposed on the output shaft and configured to selectively engage with the linked gears, a first motor configurable to perform either direct or indirect power transmission with at least one of the input shafts and the output shaft, and one or more second motor generators configured to drive the rear wheels of the vehicle.

A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes an engine unit configured to generate power, a transmission unit adapted to selectively coupled with the engine unit, and configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit configured to transmit the power output by the transmission unit to at least one of front and rear wheels of the vehicle, a power switching device adapted to enable or interrupt a power transmitting between the transmission unit and the output unit, and a second motor generator configured to drive the at least one of the front and rear wheels.

A drive arrangement for a least one auxiliary equipment of a hybrid vehicle includes a gearbox having at least one input shaft connected to a drive internal combustion engine and one output shaft connected to driven wheels of the vehicle. The drive arrangement includes a power split device having no more than three separate input/output couplings, with a first coupling connected to the input shaft, a second coupling connected to the output shaft, and a third coupling connected to the at least one auxiliary equipment. The drive arrangement includes an auxiliary electric machine connected to one of the couplings of the power split device, and adapted to deliver torque to the at least one auxiliary equipment. The drive arrangement further includes an arrangement to disconnect the first coupling from the input shaft of the gearbox.