Abstract: A power electronics arrangement includes an inverter to which an electric machine can be connected, and at least one half bridge to which at least two electric energy storage devices can be connected. One of the at least two electric energy storage devices at least temporarily supplies the electric machine, and one of the electric energy storage devices at least temporarily charges another energy storage device of the at least two electric energy storage devices by way of the electric machine and one of the half bridges. For this purpose, a control method for the power electronics arrangement operates according to the principle of space vector modulation.

Abstract: A vehicle is provided with a multiphase electrical machine, a first onboard electrical sub-system having a first nominal DC voltage, and a second onboard electrical sub-system having a second nominal DC voltage. The electrical machine includes a rotor, a first stator system and a second stator system. The first onboard electrical sub-system includes a first inverter with a first link capacitor. The first stator system is associated with the first inverter. The second onboard electrical sub-system includes a second inverter with a second link capacitor. The second stator system is associated with the second inverter. The first stator system is configured in a star configuration. The second stator system is configured in a star configuration or in a delta configuration. A transfer circuit connects the star point of the first stator system to a higher potential of the second onboard electrical sub-system.

Abstract: A vehicle with an N-phase electric motor, with a first onboard electrical subsystem and with a second onboard electrical subsystem, wherein the electric motor includes a rotor and a stator system, and the first onboard electrical subsystem includes an inverter. The stator system is associated with the inverter and the electric motor is operable with an inverter controller according to the principle of field-oriented control such that the stator system is embodied in a star circuit in which the star point can be connected to the second onboard electrical subsystem directly or via a star point switch. The inverter controller includes a current controller and a star point controller, wherein the current controller controls phase currents of the stator system and the star point controller controls a star point current.

Abstract: Power electronics unit, which comprises a controller and at least one half bridge with a first switching element and with a second switching element, and has a phase current output between the two switching elements, at which phase current output the first switching element and the second switching element can be switched in the push-pull mode for a switching time at a cycle frequency, and at which the controller sets the switching time and/or the cycle frequency as a control variable, in order to provide, at the phase current output, a specified amplitude, frequency and phase position of the phase current in a switching cycle, so that the amplitude, the frequency and the phase position at the phase current output can be predicted at the phase current output for the switching cycle, the polarity of the phase current is used as an observation variable, and the determined switching time for the switching cycle is a function of the direction of the predicted phase current.

Abstract: The invention relates to a vehicle having a multiphase electric machine, comprising a first onboard power subsystem provided with a first nominal DC voltage level, and a second onboard power subsystem provided with a second nominal DC voltage level, wherein the electric machine comprises a rotor, a first stator system, and a second stator system. The first onboard power subsystem comprises a first inverter having a first intermediate circuit capacitor. The first stator system is dedicated to the first inverter. The second onboard power subsystem comprises a second inverter having a second intermediate circuit capacitor, and the second stator system is dedicated to the second inverter. The first stator system is configured in a star connection, the second stator system is configured in a star connection, and a transfer circuit connects the star point of the first stator system to the star point of the second stator system.

Abstract: An on-board power system has a three-phase motor having a first and at least a second at least three-phase winding, a first and a second electric component energy on-board power system, as well as a first and a second actuator element, which are each electrically connected to one of the windings and one of the electric component energy on-board power systems.

Abstract: A vehicle with an N-phase electric motor, with a first onboard electrical subsystem and with a second onboard electrical subsystem, wherein the electric motor includes a rotor and a stator system, and the first onboard electrical subsystem includes an inverter. The stator system is associated with the inverter and the electric motor is operable with an inverter controller according to the principle of field-oriented control such that the stator system is embodied in a star circuit in which the star point can be connected to the second onboard electrical subsystem directly or via a star point switch. The inverter controller includes a current controller and a star point controller, wherein the current controller controls phase currents of the stator system and the star point controller controls a star point current.

Abstract: Power electronics unit, which comprises a controller and at least one half bridge with a first switching element and with a second switching element, and has a phase current output between the two switching elements, at which phase current output the first switching element and the second switching element can be switched in the push-pull mode for a switching time at a cycle frequency, and at which the controller sets the switching time and/or the cycle frequency as a control variable, in order to provide, at the phase current output, a specified amplitude, frequency and phase position of the phase current in a switching cycle, so that the amplitude, the frequency and the phase position at the phase current output can be predicted at the phase current output for the switching cycle, the polarity of the phase current is used as an observation variable, and the determined switching time for the switching cycle is a function of the direction of the predicted phase current.

Abstract: The invention relates to a vehicle having a multiphase electric machine, comprising a first onboard power subsystem provided with a first nominal DC voltage level, and a second onboard power subsystem provided with a second nominal DC voltage level, wherein the electric machine comprises a rotor, a first stator system, and a second stator system. The first onboard power subsystem comprises a first inverter having a first intermediate circuit capacitor. The first stator system is dedicated to the first inverter. The second onboard power subsystem comprises a second inverter having a second intermediate circuit capacitor, and the second stator system is dedicated to the second inverter. The first stator system is configured in a star connection, the second stator system is configured in a star connection, and a transfer circuit connects the star point of the first stator system to the star point of the second stator system.

Abstract: A vehicle is provided with a multiphase electrical machine, a first onboard electrical sub-system having a first nominal DC voltage, and a second onboard electrical sub-system having a second nominal DC voltage. The electrical machine includes a rotor, a first stator system and a second stator system. The first onboard electrical sub-system includes a first inverter with a first link capacitor. The first stator system is associated with the first invertor. The second onboard electrical sub-system includes a second inverter with a second link capacitor. The second stator system is associated with the second inverter. The first stator system is configured in a star configuration. The second stator system is configured in a star configuration or in a delta configuration. A transfer circuit connects the star point of the first stator system to a higher potential of the second onboard electrical sub-system.

Abstract: An electrical system is provided. The electrical system includes a first 2-pole direct current source and/or sink, a second 2-pole direct current source and/or sink, a first 3-phase direct current/alternating current converter, a second 3-phase direct current/alternating current converter, and an electrical machine. The electrical machine is designed with 6 phases, and has a first 3-phase stator system and a second 3-phase stator system that are electrically isolated from each another.

Abstract: A power electronics arrangement includes an inverter to which an electric machine can be connected, and at least one half bridge to which at least two electric energy storage devices can be connected. One of the at least two electric energy storage devices at least temporarily supplies the electric machine, and one of the electric energy storage devices at least temporarily charges another energy storage device of the at least two electric energy storage devices by way of the electric machine and one of the half bridges. For this purpose, a control method for the power electronics arrangement operates according to the principle of space vector modulation.