A hybrid vehicle comprising: a pair of drive wheels; an internal combustion heat engine; an electrically controlled transmission; a control unit of the heat engine; a control unit of the transmission; a passenger compartment having a driver's seat provided with a plurality of controls that can be operated by the driver and comprise a steering wheel, an accelerator pedal, a brake pedal and transmission control means; and an electronic control unit of the transmission control means that is physically installed in the passenger compartment close to the transmission control means, fulfils the function of acquiring the current position of the transmission control means and also fulfils the function of vehicle management unit by receiving the orders given by the driver and by providing the control unit of the heat engine and the control unit of the transmission with the corresponding objectives to meet the driver's needs.

A planetary gear mechanism has a sun gear disposed to a rotating shaft, a plurality of pinion gears, a carrier supporting the plurality of the pinion gears, a ring gear meshing with the pinion gear on the outer diameter side of the carrier and a case holding the ring gear on the outer diameter side thereof. The ring gear is slidable in the axial direction of the rotating shaft with respect to the case. The planetary gear mechanism has a load transmission member abutting to an inner diameter side end portion of the ring gear and holding the carrier and the ring gear so as to be relatively rotatable. The load transmission member transmits an axial load from the ring gear to the carrier.

Provided a transmission including a first shaft, a second shaft connected thereto via a shift gear mechanism provided to a first shaft and generating a rotary output corresponding to a selected shift gear, a planetary gear mechanism, a transmission case for housing the planetary gear mechanism and a mounting member for fixing a ring gear of the planetary gear mechanism to the case. To the mounting member, an abutment support portion is formed for supporting the case by abutting to an inter-shaft portion positioned between the first shaft and the second shaft in the case.

A vehicle transmission includes first and second input gear shafts, an intermediate gear shaft and an output gear shaft. The first input gear shaft has a first torque transmission member, and the second input gear shaft has a first gear wheel. The intermediate gear shaft has second and third gear wheels. The output gear shaft has a fourth gear wheel and a second torque transmission member. The third gear wheel and the fourth gear wheel are arranged to interact with each other for transferring torque from the intermediate gear shaft to the output gear shaft. The first gear wheel and the second gear wheel are arranged to interact with each other for providing a first gear ratio. The first torque transmission member and the second torque transmission member are arranged to interact with each other via a flexible member for providing a second gear ratio.

A vehicle transmission includes first and second input gear shafts, an intermediate gear shaft and an output gear shaft. The first input gear shaft has a first torque transmission member, and the second input gear shaft has a first gear wheel. The intermediate gear shaft has second and third gear wheels. The output gear shaft has a fourth gear wheel and a second torque transmission member. The third gear wheel and the fourth gear wheel are arranged to interact with each other for transferring torque from the intermediate gear shaft to the output gear shaft. The first gear wheel and the second gear wheel are arranged to interact with each other for providing a first gear ratio. The first torque transmission member and the second torque transmission member are arranged to interact with each other via a flexible member for providing a second gear ratio.

A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. The first input shaft of a first subtransmission can be coupled to the internal combustion engine via a friction-locking clutch in such a way that when the clutch is engaged the internal combustion engine is coupled to the first input shaft and thus to the first subtransmission, and when the clutch is disengaged the internal combustion engine is decoupled from the first input shaft and thus decoupled from the first subtransmission. A second input shaft of a second subtransmission is rigidly coupled to the electric machine, and both input shafts can be coupled selectively to the common output shaft via form-locking shift elements of the subtransmissions.

A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. The first input shaft of a first subtransmission can be coupled to the internal combustion engine via a friction-locking clutch in such a way that when the clutch is engaged the internal combustion engine is coupled to the first input shaft and thus to the first subtransmission, and when the clutch is disengaged the internal combustion engine is decoupled from the first input shaft and thus decoupled from the first subtransmission. A second input shaft of a second subtransmission is rigidly coupled to the electric machine, and both input shafts can be coupled selectively to the common output shaft via form-locking shift elements of the subtransmissions.

A work machine including a prime mover, an electric motor, an electric motor fluid circuit, a transmission fluid circuit, a hydraulic circuit, a cooling circuit, a pump, and a controller. The electric motor may supply a portion of power of the prime mover. The electric motor fluid circuit may be adapted to remove waste heat from the electric motor. The transmission fluid circuit may be adapted to lubricate a moving part of a transmission powered by the prime mover. The hydraulic circuit may be adapted to transmit power from the prime mover to a moving component of the work machine. The cooling circuit may be absorbing waste heat from one or more of the electric motor fluid circuit, the transmission fluid circuit, and the hydraulic circuit. The control may be adapted to control diversion of a portion of waste heat from the cooling circuit to a portion of the cab.

Accessory transmission for an engine of a motor vehicle has a first pulley adapted to be connected to a crankshaft of the engine, a second pulley adapted to be connected to a shaft of an electric machine through a one-way clutch, and a belt connecting the first and the second pulley to one another in order to rotate in one and the same rotation direction (R). The one-way clutch is configured so as to couple the second pulley to the shaft of the electric machine when the electric machine drives the second pulley in the rotation direction, and to decouple the second pulley from the shaft of the electric machine when the second pulley tends to overrun the electric machine in the rotation direction.

Accessory transmission for an engine of a motor vehicle has a first pulley adapted to be connected to a crankshaft of the engine, a second pulley adapted to be connected to a shaft of an electric machine through a one-way clutch, and a belt connecting the first and the second pulley to one another in order to rotate in one and the same rotation direction (R). The one-way clutch is configured so as to couple the second pulley to the shaft of the electric machine when the electric machine drives the second pulley in the rotation direction, and to decouple the second pulley from the shaft of the electric machine when the second pulley tends to overrun the electric machine in the rotation direction.