An automatic manual transmission for a hybrid vehicle provided with an internal combustion engine and with an electrical machine. The automatic manual transmission has: a servo-assisted mechanical gearbox; a differential gear, which transmits the motion to driving wheels; a clutch; a servo-assisted drive device with a variable gear ratio; an auxiliary shaft, along which the electrical machine is mounted; a drive shaft connecting the differential gear to the servo-assisted drive device, which is arranged immediately downstream of the gearbox and directly receives the motion from a secondary shaft of the gearbox; a first connectable/disconnectable and servo-assisted connection device, which is suited to connect the auxiliary shaft to the drive shaft; and a second connectable/disconnectable and servo-assisted connection device, which is suited to connect the auxiliary shaft to the secondary shaft of the gearbox.

A control system, a switch and a control method for a hybrid vehicle, the vehicle operable in a hybrid mode where a combustion engine and an electric motor can be used, and in an electric mode where only the electric motor can be used. The control system includes a propulsion mode control module configured to control the vehicle to operate in one of the hybrid mode and the electric mode. The propulsion mode control module is further configured to verify that the vehicle has been in an off-state for a predetermined period of time before switching from the hybrid mode to the electric mode.

A method of controlling a mode transition of a hybrid vehicle includes determining whether a mode transition from a first mode to a second mode is required based on a first torque, the first torque being a current required torque. A second torque, which is a required torque expected to be generated at a near-future time from a current time, is also determined. A predicted gear shift time point and a predicted engagement time point of an engine clutch are determined based on the second torque. The mode transition to the second mode is performed when it is determined that the mode transition to the second mode is required and the predicted engagement time point is earlier than the predicted gear shift time point.

In a control system and a control method, an electronic control unit is configured to crank an engine by setting a clutch to a half engaged state in a state where operation of the engine is stopped during traveling. The half engaged state is a state where the clutch is engaged with a slip. The electronic control unit is configured to, after a rotation speed of the engine has reached an ignition permission rotation speed or higher, increase a transmitted torque capacity of the clutch to a transmitted torque capacity that satisfies the following conditions i) and ii): i) the transmitted torque capacity is larger than a transmitted torque capacity before the rotation speed of the engine has reached the ignition permission rotation speed; and ii) the transmitted torque capacity allows the clutch to be kept in the half engaged state.

A method for learning a touch point of an engine clutch of a hybrid electric vehicle including a motor connected to a transmission and an engine selectively connected to the motor through the engine clutch includes determining whether a learning condition of the touch point of the engine clutch is satisfied, releasing a transmission clutch and controlling a motor speed when the learning condition is satisfied, increasing a coupling pressure of the engine clutch when a change amount of the motor speed is less than a first predetermined value, comparing a change amount of a motor torque according to the increased coupling pressure of the engine clutch with a second predetermined value, and learning the touch point of the engine clutch when the change amount of the motor torque is greater than or equal to the second predetermined value.

A vehicle is provided with a continuously variable transmission device and an electric control unit controlling an engine, a motor generator, and the continuously variable transmission device. The electric control unit selects any one of a plurality of operation modes, having different correlations between a driver's accelerator operation amount and a control throttle opening, to suit driver's requests, and performs a number-of-revolutions increase control for increasing an engine rotation speed according to at least one of elapsed time from a time point of a vehicle speed increase and elapsed time from a time point of an acceleration request in a case where the control throttle opening exceeds a predetermined threshold. The electric control unit controls the engine to suppress the engine rotation speed change due to a change of the operation mode in a case where the control throttle opening is changed across the predetermined threshold in response to the change of the operation mode.

A system and a method for reducing exhaust gas of a hybrid electric vehicle are disclosed. A system for reducing exhaust gas of a hybrid electric vehicle according to an exemplary form of the present disclosure may include: a battery management system measuring a state of charge (SOC) of a high voltage battery of the hybrid electric vehicle; a motor control unit controlling a driving motor with power of the high voltage battery to generate motor driving force; an engine control unit controlling an engine to generate engine driving force; and a hybrid control unit checking an all electric range (AER) according to a driving in a charge depleting (CD) mode of the hybrid electric vehicle to perform a catalyst heating and warm up control by starting the engine in the CD mode in the case in which the checked AER exceeds a reference AER.

An internal combustion engine assembly for a motor vehicle is provided. The engine assembly comprising: an engine; an electric motor; and a balance shaft comprising an eccentric mass, wherein the electric motor is configured to selectively rotate the balance shaft in order to balance a vibration characteristic of the engine. A method of operating the engine assembly is also provided.

A power control system may include at least one of batteries, a motor, and a data logic analyzer that can interpret certain variable conditions of a transport, such as a tractor trailer, moving along a road or highway. The data can be used to determine when to apply supplemental power to the wheels of a trailer to reduce fuel usage. One example device may include at least one of: a power creation module that generates electrical power, a battery which store the electrical power, a motor affixed to a trailer axle of a trailer which provides a turning force to the trailer axle when enabled to operate from the stored electrical power of the battery, and a motor controller configured to initiate the motor to operate according to a predefined sensor condition.

An engine clutch control system of a hybrid vehicle includes a driving information detector for detecting vehicle information and road environment information according to operation of the hybrid vehicle. An engine clutch is disposed between an engine and a motor. A hybrid controller provides an EV (electric vehicle) mode or an HEV (hybrid electric vehicle) mode by controlling engagement or disengagement of the engine clutch. The hybrid controller sets a slip estimation region of the engine clutch from an accumulated value of an APS (Accelerator Pedal position Sensor), an engine clutch temperature, or a road inclination when engagement of the engine clutch is required, and extracts a speed variation of the engine and the motor in the slip estimation region. The hybrid controller compares the speed variation of the engine and the motor with each other, and determines the engine clutch is engaged when a maximal peak is detected.