A control system for hybrid vehicles for reducing a shock caused by a change in an output torque of a transmission during a shifting operation of a transmission. In the hybrid vehicle, an engine and a first motor are connected to an input side of an automatic transmission, and a second motor is connected to an output side of the automatic transmission. A controller calculates a change in an output torque of the transmission when establishing a predetermined gear stage, based on a torque capacity of an engagement device to be engaged and an input torque to the transmission, and select one of the first motor and the second motor that requires less power to reduce the change in the output torque of the automatic transmission.

A hybrid power-driven system and a vehicle are provided. The hybrid power-driven system includes an engine, a transmission, and a motor power apparatus. The transmission includes a transmission mechanism and a main reducer. The motor power apparatus includes a motor and a power distribution mechanism. The power distribution mechanism includes a motor power distribution shaft, a mode selection apparatus, a first transmission apparatus, and a second transmission apparatus. The motor power distribution shaft is disposed independently from the transmission mechanism, and the motor power distribution shaft is disposed independently from the motor. A motor driven gear configured to receive power of the motor is disposed on the motor power distribution shaft.

Provided is a dual clutch transmission for an internal combustion engine including a motor generator unit, MGU (M), for providing electric or hybrid driving capability wherein the MGU (M) is selectively connectable to a (one) transmission input shaft, or transmission output shaft or to neither shaft.

Specialty tractor includes a diesel engine coupled with a powertrain including a clutch and a manual shift transmission having an output shaft that is designed to transmits power to the wheels of the tractor. An electric motor includes an output shaft connected through a power transmission to the output shaft of the manual shift transmission. The specialty tractor includes an electronic unit configured to perform at least a first operating mode and a second operating mode. In the first operating mode the clutch is opened and the manual transmission does not receive any torque from the diesel engine, and the electric motor transmits torque to the wheels the tractor. In the second operating mode the clutch is closed and the manual transmission receives torque from the diesel engine so that the engine-torque is transmitted to the wheels of the tractor that moves at a speed higher than the speed limit.

Disclosed is a method of controlling a hybrid electric vehicle having a transmission, an engine, and first and second drive motors. The method includes: performing charging through the first drive motor using the power of the engine by engaging an engine clutch disposed between the engine and the first drive motor while a vehicle is stopped with the gear stage shifted to the parking (P) range; turning off the engine and controlling the clutch of the transmission to enter an open state when the gear stage is shifted to the driving (D) range; and commencing movement of the vehicle using the second drive motor alone or using at least one of the first drive motor or the engine together with the second drive motor based on at least one of requested torque, available torque of the second drive motor, or the speed of the first drive motor.

A drive train for a hybrid vehicle, in particular for a temporarily four-wheel-driven motor vehicle, wherein the drive train comprises a first partial drive train assigned to a primary axle and a second partial drive train assigned to a secondary axle, and wherein the first partial drive train comprises a first drive unit configured as an internal combustion engine and a second drive unit configured as an electric machine and a change transmission, is refined in that the hybrid drive train is inexpensive to produce, has low CO2 emissions in operation, and may be used in a drive train of a temporarily four-wheel-driven motor vehicle. This is achieved in that change transmission comprises an input shaft and an output shaft, wherein the first drive unit is coupled to the primary axle via the change transmission, and wherein the second drive unit is coupled to the primary axle via the input or output shaft of the change transmission, and wherein the drive train furthermore comprises a clutch arrangement, wherein the secondary axle can be coupled in a driving manner to the primary axle by means of the clutch arrangement.

A transmission device for a motor vehicle, having an input shaft, which is operatively connectable to a drive device of the motor vehicle, and a first output shaft and a second output shaft, and comprising a spur gear differential transmission which is designed as a planetary transmission, by means of which the input shaft is coupled to the first output shaft and the second output shaft. It is provided that the spur gear differential transmission comprises a first sun gear coupled to the first output shaft and a second sun gear coupled to the second output shaft, wherein the first sun gear meshes with a first planet gear which is rotatably mounted on a planet gear carrier coupled to the input shaft, which first planet gear also meshes with a second planet gear which is likewise rotatably mounted on the planet gear carrier and which meshes with the second sun gear.

A drive unit for a drivetrain of a hybrid motor vehicle comprises a first electric machine and a second electric machine, which, in respect of its rotor, is arranged coaxially with an axis of rotation of a rotor of the first electric machine. A first transmission stage is arranged between a drive component, which is configured to be selectively coupled for conjoint rotation to an output shaft of an internal combustion engine, and a power shaft of the first electric machine and/or of the second electric machine. A transmission component unit is provided, via which the power shaft of the respective electric machine is configured to be selectively coupled to wheel driveshafts. The drive component of the internal combustion engine is coupled to an intermediate gear unit via a second transmission stage. The intermediate gear unit has an integrated clutch and is further connected to the wheel driveshafts in such a way that, depending on the position of the integrated clutch, the internal combustion engine is coupled to the wheel driveshafts via at least the second transmission stage or is decoupled from the wheel driveshafts.

Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, an electric machine, an integrated starter/generator, and a transmission are described. In one example, transmission output torque and electric machine torque are adjusted while a brake pedal and accelerator pedal are contemporaneously applied.

A method and apparatus for delivering power to a hybrid vehicle is disclosed. The apparatus includes an apparatus for delivering power to a hybrid vehicle, the hybrid vehicle including a powertrain having a power take-off coupling, the powertrain including an engine and a transmission. The apparatus includes an electric motor operable to generate a torque, the motor being coupled to transmit a starting torque through the power take-off of the powertrain for starting the engine.