Hybrid power train (1) with a low-voltage motor-generator (2), in particular with a 48V motor-generator (2), comprising: an internal combustion engine (3); a clutch (4) operatively connected to the internal combustion engine (3); a drive shaft (5) which at a first end portion is operatively connected to the clutch (4), and which at a second end portion is operatively connected to a gearbox; a low-voltage motor-generator (2) operatively connected to the drive shaft (5); an inverter unit (7) operatively connected to the low-voltage motor-generator (2); an electronic control unit (8); an electric power source (9) operatively connected to the inverter unit (7); wherein the low-voltage motor-generator (2) is arranged in a concentric manner around the drive shaft (5) in such a way as to form a driving connection between a rotor of the low-voltage motor-generator (2) and the drive shaft (5); wherein the low-voltage motor-generator (2), the inverter unit (7) the electric power source (9), and the gearbox are arranged entirely inside a bell housing (10) of the gearbox, and wherein the electronic control unit (8) comprises a) at least one controller arranged in the bellhousing (10) and no controller arranged out of the bellhousing (10); b) two or more controllers, wherein at least one controller is arranged in the bellhousing (10) and at least one controller is arranged out of the bellhousing (10); or c) at least one controller arranged out of the bellhousing (10) and no controller arranged in the bellhousing (10).

A method for operating a hybrid drive train of a motor vehicle includes: starting the motor vehicle solely with the aid of an electric machine; engaging a torque converter lockup clutch for rotationally fixing an impeller of a torque converter to a turbine wheel of the torque converter, wherein the turbine wheel is rotationally fixed to the electric machine; and engaging a clutch in order to drivingly connect the impeller to a motor vehicle drive unit, in order to start the motor vehicle drive unit.

A hybrid vehicle control apparatus including a torque converter temperature detector detecting a torque converter temperature, a rotor temperature detector detecting a rotor temperature, a stator temperature detector detecting a stator temperature, and an electronic control unit including a microprocessor. The microprocessor is configured to perform controlling an engine, a transmission, a lockup clutch, a motor-generator and a stator cooling device based on the torque converter temperature detected by the torque converter temperature detector, the rotor temperature detected by the rotor temperature detector and the stator temperature detected by the stator temperature detector so that the torque converter temperature is equal to or lower than a first predetermined temperature, the rotor temperature is equal to or lower than a second predetermined temperature and the stator temperature is equal to or lower than a third predetermined temperature.

A drive control device of a hybrid vehicle provided with a motor and an engine is provided. The control device includes a processor configured to execute a target fuel consumption setting module that sets a target fuel consumption according to the number of lapsed days from a given reference timing, an actual fuel consumption calculating module that calculates an actual fuel consumption actually consumed during a specific period from the reference timing, a forcible consumption calculating module that compares the actual fuel consumption with the target fuel consumption, and when the actual fuel consumption is less than the target fuel consumption, calculates a forcible consumption of fuel according to a difference therebetween, and a traveling controlling module that controls the drive of the motor and the engine so that traveling at least with the engine is continuously performed until the fuel is consumed by the forcible consumption.

A hybrid vehicle includes an engine, an electric machine, a disconnect clutch configured to selectively couple the engine to the electric machine, and a controller. The controller is programmed to, in response to a request to start the engine with the electric machine, command a target pressure to the disconnect clutch that depends on a seal friction derived from a measured line pressure of the disconnect clutch and a rate change of the measured line pressure.

A carbon dioxide recovery system that recovers carbon dioxide from a hybrid vehicle traveling in a CO.sub.2 recovery area including a CO.sub.2 recovery road in which a stationary CO.sub.2 recovery device collecting and recovering carbon dioxide from the atmosphere is provided acquires a residual charging capacity of the battery and position information of the hybrid vehicle and guides the hybrid vehicle such that the hybrid vehicle travels on the CO.sub.2 recovery road using a notification device when the residual charging capacity is equal to or less than a predetermined SOC threshold value while the hybrid vehicle is traveling in the CO.sub.2 recovery area.

A battery discharge limit control system is provided. The system includes a motor driven by receiving the power stored in a battery and a clutch connected to the rotary shaft of the motor. Additionally, an engine includes the rotary shaft connected to the rotary shaft of the motor through the clutch and a transmission changes the rotational speed of the rotary shaft of the motor or the engine based on the input of the shift stage instruction to output the rotational speed to a driving wheel of a vehicle. A controller opens the clutch and drives the motor in the reverse rotation, when the input of the shift stage instruction is a reverse shift stage.

An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.

Various embodiments include a method for operating a hybrid drive train for a motor vehicle having an output shaft from an internal combustion engine releasably connected to a shaft of an electric traction machine via a first clutch, wherein the shaft of the electric traction machine is releasably connected to a transmission input shaft via a second clutch. The method may comprise: determining a state parameter for the motor vehicle; and opening either the first clutch or the second clutch for a changeover to coasting operation of the hybrid drive train based on a function of one or more state parameters.

A method and system for controlling a stop rotation position of an engine is described. In one example, the system includes an integrated starter/generator that may be selectively coupled to the engine. The integrated starter/generator may rotate the engine in a first direction (e.g., reverse direction) or a second direction (e.g., a forward direction) in response to a position at which the engine stops rotating following cessation of combustion in the engine.