In a method for operating a system with drives, which are mechanically coupled to one another, and with a higher-level computer, which is connected to the drives with the aid of a data-bus connection, and a system, a respective actual torque value is determined in each drive and transmitted to the higher-level computer, in particular using a data-bus connection. The higher-level computer determines for each drive a setpoint torque value allocated to this drive, the higher-level computer has controllers, and one of the controllers is allocated, in particular biuniquely, to each drive. The controller allocated to the respective drive controls the actual torque value of the respective drive to the setpoint torque value of the respective drive by determining a setpoint speed value allocated to the respective drive as the control value and transmits it to the respective drive, in particular with the aid of a data-bus connection. The respective drive has a controller in each case, to which the respective actual speed value, determined in the drive, of an electric motor of the drive is supplied and which controls this actual speed value to the respective setpoint speed value transmitted by the higher-level computer by setting the motor voltage or the motor current of the electric motor of the respective drive.

Disclosed is a power train including a drive shaft of a working machine, a drive machine and a differential gear with three drives or power take-offs, wherein one power take-off can be connected to the drive shaft, a first drive can be connected to the drive machine and a second drive can be connected to the differential gear. One drive can be connected simultaneously to the other drive or to the power take-off.

Disclosed is a power train including a drive shaft of a working machine, a drive machine and a differential gear with three drives or power take-offs, wherein one power take-off can be connected to the drive shaft, a first drive can be connected to the drive machine and a second drive can be connected to the differential gear. One drive can be connected simultaneously to the other drive or to the power take-off.

There is provided a hybrid vehicle including an electronic control unit configured to turn on a second inverter in three phases when an accelerator operation amount is equal to or greater than a predetermined operation amount during predetermined traveling in which the hybrid vehicle is traveling with the engine operated in a state in which a first inverter and a second inverter are shut down and when a rotation speed of a first motor is equal to or less than a predetermined rotation speed. Accordingly, it is possible to rapidly increase a rotation speed of the first motor to be higher than a predetermined rotation speed.

There is provided a hybrid vehicle including an electronic control unit configured to turn on a second inverter in three phases when an accelerator operation amount is equal to or greater than a predetermined operation amount during predetermined traveling in which the hybrid vehicle is traveling with the engine operated in a state in which a first inverter and a second inverter are shut down and when a rotation speed of a first motor is equal to or less than a predetermined rotation speed. Accordingly, it is possible to rapidly increase a rotation speed of the first motor to be higher than a predetermined rotation speed.

A variable-speed speed increaser includes: an electric driving device which is configured to generate a rotational driving force; and a transmission device which is configured to change the speed of the rotational driving force generated by the electric driving device and transmit the changed rotation driving force to a driving target. The transmission device includes: a sun gear which is configured to rotate about an axis; a sun gear shaft which is fixed to the sun gear and extends in an axial direction around the axis; a planetary gear which is configured to mesh with the sun gear, revolve around the axis and rotate about a center line of the planetary gear; an internal gear which includes a plurality of teeth aligned annularly around the axis and is configured to mesh with the planetary gear; a planetary gear carrier; and an internal gear carrier.

Disclosed is a power train including a drive shaft of a working machine, a drive machine and a differential gear with three drives or power take-offs, wherein one power take-off can be connected to the drive shaft, a first drive can be connected to the drive machine and a second drive can be connected to the differential gear. One drive can be connected simultaneously to the other drive or to the power take-off.

Disclosed is a power train including a drive shaft of a working machine, a drive machine and a differential gear with three drives or power take-offs, wherein one power take-off can be connected to the drive shaft, a first drive can be connected to the drive machine and a second drive can be connected to the differential gear. One drive can be connected simultaneously to the other drive or to the power take-off.

A vehicle driving device includes a case that accommodates therein a first rotary electric machine and a second rotary electric machine arranged with rotation axes thereof parallel to each other and radially adjacent to each other, and a power control device that controls electric power supplied to the first rotary electric machine and the second rotary electric machine. In the power control device, a control board, a power card and a cooler, a reactor and a capacitor, and a water jacket are disposed in order from top in a height direction.

A vehicle driving device includes a case that accommodates therein a first rotary electric machine and a second rotary electric machine arranged with rotation axes thereof parallel to each other and radially adjacent to each other, and a power control device that controls electric power supplied to the first rotary electric machine and the second rotary electric machine. In the power control device, a control board, a power card and a cooler, a reactor and a capacitor, and a water jacket are disposed in order from top in a height direction.