A transmission unit includes: input shafts, each of the input shafts being provided with a shift driving gear thereon; output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving gear; a generator gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with the generator gear; a second motor power shaft gear disposed on the motor power shaft and configured to rotate together with a shift driven gear; a reverse idler gear; and a reverse output gear configured to rotate together with a shift driving gear via the reverse idler gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

A hybrid powertrain system includes an internal combustion engine and a transmission arranged in a parallel configuration with a non-combustion torque machine to transfer traction power to a driveline. A method of controlling the hybrid powertrain system includes monitoring vehicle speed and an accelerator pedal position and determining a traction power command based thereon. A motor power that is input to the driveline from the torque machine is determined, and an adjusted engine power command is determined based upon the traction power command and the motor power from the torque machine. An adjusted accelerator pedal position is determined based upon the adjusted engine power command and the vehicle speed, and a preferred transmission state is determined based upon the adjusted accelerator pedal position and the vehicle speed. The transmission is controlled to the preferred transmission state.

A vehicle control system to be mounted in a hybrid electric vehicle includes an engine, a center differential that includes a front-wheel-side output portion and a rear-wheel-side output portion and distributes torque outputted from the engine to a front wheel and a rear wheel, a limited slip differential mechanism that limits a differential between the front-wheel-side output portion and the rear-wheel-side output portion, and a motor disposed in a drive-power transferring system that transfers drive power from the rear-wheel-side output portion to the rear wheel. The vehicle control system includes a processor. When the hybrid electric vehicle is switched from a first traveling mode to a second traveling mode, the processor stops the engine while causing the limited slip differential mechanism to limit the differential between the front-wheel-side output portion and the rear-wheel-side output portion.

The invention relates to a method for regulating a hybrid drive of a hybrid electric motor vehicle which has an electric energy store (HV), said method having the following steps: determining (S1) criteria for engaging the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) using an adjustable drive mode, wherein a part of a battery capacity of the electric energy store (HV) is reserved using a variable setting; and regulating (S2) the engagement of the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) of the hybrid electric motor vehicle using the determined criteria and the variable setting.

The invention relates to a method for regulating a hybrid drive of a hybrid electric motor vehicle which has an electric energy store (HV), said method having the following steps: determining (S1) criteria for engaging the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) using an adjustable drive mode, wherein a part of a battery capacity of the electric energy store (HV) is reserved using a variable setting; and regulating (S2) the engagement of the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) of the hybrid electric motor vehicle using the determined criteria and the variable setting.

Disclosed are a system and method for controlling driving of an electronic 4-wheel drive hybrid vehicle in which torque distribution and compensation to front wheels and rear wheels in each gear position are appropriately executed to satisfy driver's requested torque depending on selected driving mode of the electronic 4-wheel drive hybrid vehicle in which an engine and a front wheel motor are connected to the front wheels and a rear wheel motor is connected to the rear wheels, thereby being capable of increasing acceleration performance when a sports mode is selected as the driving mode and realizing acceleration linearity when a comfort mode is selected as the driving mode.