A drive train for a motor vehicle comprises an internal combustion engine which has a crankshaft and is designed to provide drive power for the motor vehicle. A clutch arrangement has an input member and at least one output member, the input member being connected to the crankshaft. A transmission arrangement implements a plurality of gear stages, the transmission arrangement having a transmission housing, at least one input shaft, and at least one output shaft. The output shaft is connectable to driven wheels of the motor vehicle. An electric machine is designed to provide drive power for the motor vehicle and is connected to a transmission shaft of the transmission arrangement. The transmission shaft has a shaft section which extends from the transmission housing and is connected to the electric machine via a traction drive mechanism.

A powertrain for a hybrid vehicle includes a first propulsion unit for powering the vehicle, a second propulsion unit for powering the vehicle, a Dual Clutch Transmission (DCT), and the second propulsion unit the ECU is programmed to control the gear shift such that when a gear shift of the first propulsion unit is made in order to change the overall gear ratio from the first input shaft to the output shaft by changing the double clutch engagement from the second clutch, engaging the second power path, to the first clutch, engaging the first power path, the power connection between the second propulsion unit and the second power path is maintained.

An assembly includes a transmission and an electric machine for a hybrid drive of a motor vehicle, and the transmission is a multi-stage standard transmission with first and second subtransmissions, each of which has a separate input shaft and shares an output shaft. Both input shafts are coupled to the shared output shaft via form locking shift elements of the subtransmissions. The assembly includes a first shiftable clutch which is allocated to a first input shaft such that the internal combustion engine is coupled to the first input shaft via the first shiftable clutch, and a second shiftable clutch which is allocated to the second input shaft such that the electric machine is coupled to the second input shaft via the second shiftable clutch. The electric machine is coupled to the internal combustion engine via a third shiftable clutch, and to the first input shaft via a fourth shiftable clutch.

A system and method for modifying a transmission in a gasoline-electric hybrid vehicle to couple the transmission to an off-axis electric motor. The transmission includes a motor-driven gear that replaces or modifies an engine-driven reverse gear. The motor-driven gear is hard-splined to an output shaft of the transmission. An electric motor is coupled to the output shaft of the transmission via the motor-driven gear. The electric motor may thus be oriented along an axis that differs from the axis of the transmission's output shaft.

A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. The first input shaft of a first subtransmission can be coupled to the internal combustion engine via a friction-locking clutch in such a way that when the clutch is engaged the internal combustion engine is coupled to the first input shaft and thus to the first subtransmission, and when the clutch is disengaged the internal combustion engine is decoupled from the first input shaft and thus decoupled from the first subtransmission. A second input shaft of a second subtransmission is rigidly coupled to the electric machine, and both input shafts can be coupled selectively to the common output shaft via form-locking shift elements of the subtransmissions.

An electrically assisted bicycle is provided with a so-called single-shaft motor drive unit that can satisfactorily keep torque detection capability. The outer periphery of a crankshaft 7a has a cylindrical human-power transmission member 28 having a torque sensor 31 for detecting a human driving force and a combined force member 29 that combines a human driving force and an auxiliary driving force from a motor 21. A one-way clutch is not provided on a driving force transmission path including the crankshaft 7a, the human-power transmission member 28, and the combined force member 28. The human-power transmission member 28 and the combined force member 29 are always rotated in response to a rotation of the crankshaft 7a.

One general aspect of the present disclosure includes a hybrid drive for a motor vehicle. The hybrid drive may have a first transmission input shaft configured to connect to an internal combustion engine, a second transmission input shaft being coaxial to the first transmission input shaft and configured to connect to an electric motor, a first gear set plane, a second gear set plane, and a third gear set plane for a first forward gear, a second forward gear, and a third forward gear, respectively, a layshaft, a first gear shifting device connecting the first transmission input shaft and the second transmission input shaft in a first shifting setting and engaging a gear in a second shifting setting, and a transmission output shaft.

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 be 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, and a second motor generator configured to drive the at least one of the front and rear wheels.

A drive train (6) is provided for a motor vehicle which can be driven in a purely electric manner. A gear mechanism (7, 15) has a standardized housing (8) for accommodating an electrical machine (16) or two electrical machines (10, 11) and for accommodating two gear mechanism output shafts (9) which are associated with a vehicle axle (2, 4). A large number of drive topologies for various vehicle sectors with purely electric drives can be formed by configuring the drive train in this way.

A hybrid drive system includes a transmission having first and second parallel input shafts. The first and second parallel input shafts are selectively coupled together via a plurality of gearwheels operable to vary the rotational speed of the second parallel shaft relative to the first parallel shaft. The hybrid drive system includes at least one irreversible drive machine coupled to the transmission and operable to provide torque to at least one of the first or second parallel input shafts, and at least one reversible drive machine coupled to the transmission and operable to provide torque to at least one of the first or second parallel input shafts.