A powertrain has an internal combustion engine provided with an accessory transmission that includes a first pulley connected to a crankshaft of the engine, a second pulley connected to a shaft of an electric machine, and a belt connecting the first and the second pulleys to each other to rotate in the same direction of rotation (R). The electric machine is operated to supply an active torque to the second pulley during start-up of the internal combustion engine by means of a starter motor.

A mobile operating machine comprising a motor vehicle moved by an endothermic engine, an articulated arm, a pumping unit and a stabilizing unit wherein the endothermic engine is provided with at least two power take-offs. The mobile operating machine also comprises a hydraulic pump and an electric motor operatively connected to the endothermic engine, to the hydraulic pump and to an electric accumulator.

An engine capable of operating on compressed air includes one or more first pressurized air tanks, one or more second pressurized air tanks, a first motor including a casing, a transmission shaft disposed within the casing, a first motor entry port coupled to the one or more first pressurized air tanks for receiving compressed air, and a first motor exit port for exhausting the received compressed air, a second motor including a turbine housing, a crankshaft, and a turbine for rotating the crankshaft disposed within the turbine housing, a second motor entry port coupled to the one or more second pressurized air tanks for receiving compressed air, and a second motor exit port for exhausting the received compressed air, and an auto clutch for selectively coupling the transmission shaft to the crankshaft.

An engine capable of operating on compressed air includes one or more first pressurized air tanks, one or more second pressurized air tanks, a first motor including a casing, a transmission shaft disposed within the casing, a first motor entry port coupled to the one or more first pressurized air tanks for receiving compressed air, and a first motor exit port for exhausting the received compressed air, a second motor including a turbine housing, a crankshaft, and a turbine for rotating the crankshaft disposed within the turbine housing, a second motor entry port coupled to the one or more second pressurized air tanks for receiving compressed air, and a second motor exit port for exhausting the received compressed air, and an auto clutch for selectively coupling the transmission shaft to the crankshaft.

An electric work vehicle includes a work device, a battery, a motor drivable on electric power supplied by the battery, a travel device drivable by the motor, and a hydraulic pump positioned next to the motor and drivable by the motor to supply operating fluid to an operating mechanism of the work device.

An electric work vehicle includes a work device, a battery, a motor drivable on electric power supplied by the battery, a travel device drivable by the motor, and a hydraulic pump positioned next to the motor and drivable by the motor to supply operating fluid to an operating mechanism of the work device.

Methods and systems are provided for an electric drivetrain. In one example, the electric drivetrain system includes a first and a second electric motor-generator rotationally coupled to a planetary assembly that is rotationally coupled to a drive axle via an output gear. The system further includes a controller that is configured to, during a first operating condition, operate each of the first and second electric motor-generators in a motor mode or a generator mode and hold the output gear at a zero speed.

Methods and systems are provided for an electric drivetrain. In one example, the electric drivetrain system includes a first and a second electric motor-generator rotationally coupled to a planetary assembly that is rotationally coupled to a drive axle via an output gear. The system further includes a controller that is configured to, during a first operating condition, operate each of the first and second electric motor-generators in a motor mode or a generator mode and hold the output gear at a zero speed.

A military vehicle include a driveline. The driveline includes a first driver including an engine, an energy storage system, an accessory drive coupled to the engine, a transmission coupled to at least one of the front axle or the rear axle, and a second driver coupled to the engine and the transmission. The accessory drive includes a plurality of accessories and a first motor. The first motor is electrically coupled to the energy storage system. The first motor is positioned to facilitate selectively driving the plurality of accessories. The second driver includes a second motor electrically coupled to the energy storage system.

A military vehicle include a driveline. The driveline includes a first driver including an engine, an energy storage system, an accessory drive coupled to the engine, a transmission coupled to at least one of the front axle or the rear axle, and a second driver coupled to the engine and the transmission. The accessory drive includes a plurality of accessories and a first motor. The first motor is electrically coupled to the energy storage system. The first motor is positioned to facilitate selectively driving the plurality of accessories. The second driver includes a second motor electrically coupled to the energy storage system.