A hybrid module shaft assembly includes a rotational axis, a housing with a tubular portion, a shaft extending through the tubular portion, a first seal, a first ball bearing, and a plain bearing. The tubular portion has a first distal end arranged on an engine side of the housing, and a second distal end arranged on a transmission side of the housing. The first seal is arranged to seal the shaft to the first distal end, and the first ball bearing is disposed on the engine side adjacent to the first seal to position the shaft in the tubular portion. The plain bearing is arranged at the second distal end to position the shaft.

Provided is a vehicle capable of suppressing vibration of a drive unit having an engine and a motor to be small and having high vehicle motion performance. The drive unit for travel of the vehicle includes an engine and a motor. The engine is a rotary engine and has an engine output shaft and an engine housing. The motor has a motor output shaft, a rotor, and a stator that are accommodated in a motor housing. The engine housing of the engine and the motor housing of the motor are directly joined to each other. The engine output shaft and the motor output shaft are directly joined to each other. The rotor of the motor has: a main body section that generates a rotational magnetic field with the stator; and a weight section that functions as a balance weight of the engine.

A hybrid vehicle includes: an engine including a crankshaft; an electric motor including a motor drive shaft; a power transmission shaft to which a total of drive power from the engine and drive power from the electric motor is transmitted; and a switching dog clutch located on a power transmission route from the crankshaft to the power transmission shaft, the switching dog clutch including a switching dog structure slidable to cut off the power transmission route.

A hybrid power transmission mechanism includes an engine; a motor/generator having a rotor and a stator; a driven machine; a planetary gear mechanism having a sun gear, an internal gear drivingly connected to the rotor, a planetary gear, and a planetary carrier shaft including first and second extension shaft parts extending from the planetary gear in opposite directions; a first clutch switchable between a state of allowing transmission of power between the first shaft and the internal gear and a state of not allowing transmission of power therebetween; and a second clutch switchable between a state of allowing rotation of the sun gear and a state of not allowing rotation thereof. A first shaft that outputs power of the engine and a second shaft that inputs power to the driven machine are drivingly connected to the first and second extension shaft parts of the planetary carrier shaft, respectively.

A hybrid power transmission mechanism includes an engine; a motor/generator having a rotor and a stator; a driven machine; a planetary gear mechanism having a sun gear, an internal gear drivingly connected to the rotor, a planetary gear, and a planetary carrier shaft including first and second extension shaft parts extending from the planetary gear in opposite directions; a first clutch switchable between a state of allowing transmission of power between the first shaft and the internal gear and a state of not allowing transmission of power therebetween; and a second clutch switchable between a state of allowing rotation of the sun gear and a state of not allowing rotation thereof. A first shaft that outputs power of the engine and a second shaft that inputs power to the driven machine are drivingly connected to the first and second extension shaft parts of the planetary carrier shaft, respectively.

A hybrid module includes a first, motor-side pre-assembly group and a second, transmission-side pre-assembly group. A separating clutch is arranged between the motor-side pre-assembly group and the transmission-side pre-assembly group, via which the pre-assembly groups can be connected in a torque-transmitting manner.

A system and method for operating a hybrid vehicle that shuts down an internal combustion engine during idle and slow speed operations and instead drives a power transmission with an electric traction motor. A vehicle operating at higher speeds, under increased operating demands, or other operating conditions automatically switches from electric propulsion to internal combustion engine propulsion. This operational mode is configurable and at all times seamless to the driver and vehicle operations. By designating the low speed, low demand operation of the vehicle to the more efficient electric mode, fuel consumption can be reduced, and overall vehicle efficiency can be maximized.

A device includes a rotary electric machine, a liquid supply member configured to supply liquid to the rotary electric machine, and a facing member facing the rotary electric machine in an axial direction with the liquid supply member interposed therebetween. The liquid is supplied to the liquid supply member via the facing member.

A device includes a rotary electric machine, a liquid supply member configured to supply liquid to the rotary electric machine, and a facing member facing the rotary electric machine in an axial direction with the liquid supply member interposed therebetween. The liquid is supplied to the liquid supply member via the facing member.

The present disclosure discloses a transmission device of a hybrid vehicle. The transmission device includes an input shaft assembly, a power generation motor input shaft assembly, a driving motor input shaft assembly, an output shaft assembly, a clutch, an accelerating planetary gear train, a decelerating planetary gear train, and a parking mechanism. The input shaft assembly is located at a front end of the transmission device. The power generation motor input shaft assembly is located between the accelerating planetary gear train and the driving motor input shaft assembly. The driving motor input shaft assembly is located between the power generation motor input shaft assembly and the decelerating planetary gear train. The output shaft assembly is located at a tail end of the transmission device. The clutch is located between a power generation motor and a driving motor.