Abstract: A method and a vehicle electrical system having an inverter, an electrical energy store, an electrical machine and an AC transmission terminal. The inverter has first and second sides and is configured to transmit power between these sides. Two output terminals of the inverter are connected or connectable to the energy store on the first side of the inverter. At least two phase current terminals of the inverter are connected or connectable to the electrical machine on the second side of the inverter. At least one of the charging inputs of the vehicle electrical system is connectable to a respective inner motor phase of the electrical machine by a switching device controlled by a controller. The vehicle electrical system initially charges the electrical energy store with a first voltage, and then charges the electrical energy store with a second voltage, which second voltage is higher than the first voltage.

Abstract: A vehicle electrical system having an electrical energy store, a direct voltage converter and a direct current transmission connection is described. The direct current transmission connection is connected to the energy store via the direct voltage converter. The vehicle electrical system also has a bypass switch which connects the electrical energy store in a switchable fashion to the direct voltage transmission connection. In addition, a method, a charging system, a charging station and a further vehicle electrical system are described.

Abstract: The disclosure relates to a power circuit for power supply in an electrically driven vehicle. The power circuit includes a direct voltage connection, an electrical traction drive, and a DC/AC converter. The converter includes an alternating voltage side connected to the traction drive. A DC/DC converter of the power circuit includes two converter sides. The first converter side is connected to a direct voltage side of the DC/AC converter via a coupling point. The direct voltage connection is likewise connected to the coupling point. The disclosure further relates to a stationary energy supply system designed to be complementary and to connect to the power circuit.

Abstract: A vehicle electrical system having an electrical energy store,, a direct voltage converter and a direct current transmission connection is described. The direct current transmission connection is connected to the energy store via the direct voltage converter. The vehicle electrical system also has a bypass switch which connects the electrical energy store in a switchable fashion to the direct voltage transmission connection. In addition, a method, a charging system, a charging station and a further vehicle electrical system are described.

Abstract: A method and a vehicle electrical system having an inverter, an electrical energy store, an electrical machine and an AC transmission terminal. The inverter has first and second sides and is configured to transmit power between these sides. Two output terminals of the inverter are connected or connectable to the energy store on the first side of the inverter. At least two phase current terminals of the inverter are connected or connectable to the electrical machine on the second side of the inverter. At least one of the charging inputs of the vehicle electrical system is connectable to a respective inner motor phase of the electrical machine by a switching device controlled by a controller. The vehicle electrical system initially charges the electrical energy store with a first voltage, and then charges the electrical energy store with a second voltage, which second voltage is higher than the first voltage.

Abstract: A power module for a power converter includes a first busbar with a first surface and a second surface opposite the first surface, a first semiconductor component on the first surface of the first busbar, which semiconductor component has a first surface with a first electrical surface contact connection and is connected, via the first surface contact connection, to the first surface of the first busbar in an electrically conductive and mechanical fashion over an area, and a second semiconductor component on the second surface of the first busbar, which semiconductor component has a first surface with a first electrical surface contact connection and is connected, via the first surface contact connection of the second semiconductor component, to the second surface of the first busbar in an electrically conductive and mechanical fashion over an area.

Abstract: The disclosure relates to a power circuit for power supply in an electrically driven vehicle. The power circuit includes a direct voltage connection, an electrical traction drive, and a DC/AC converter. The converter includes an alternating voltage side connected to the traction drive. A DC/DC converter of the power circuit includes two converter sides. The first converter side is connected to a direct voltage side of the DC/AC converter via a coupling point. The direct voltage connection is likewise connected to the coupling point. The disclosure further relates to a stationary energy supply system designed to be complementary and to connect to the power circuit.

Abstract: An electric machine includes a housing, a stator, and a rotor. The stator includes the rotor. The rotor includes a shaft. The electric machine is equipped with power electronics inside the housing. In addition, the electric machine includes a cooling duct that extends along a longitudinal section and a front section. The longitudinal section extends along a hollow cylinder, through an interior of which extends an axis of rotation of the shaft. The front section extends towards the shaft.

Abstract: A power module for a power converter includes a first busbar with a first surface and a second surface opposite the first surface, a first semiconductor component on the first surface of the first busbar, which semiconductor component has a first surface with a first electrical surface contact connection and is connected, via the first surface contact connection, to the first surface of the first busbar in an electrically conductive and mechanical fashion over an area, and a second semiconductor component on the second surface of the first busbar, which semiconductor component has a first surface with a first electrical surface contact connection and is connected, via the first surface contact connection of the second semiconductor component, to the second surface of the first busbar in an electrically conductive and mechanical fashion over an area.

Abstract: A device for controlling and regulating a DC voltage converter. The device may have one or more power output stages and a control unit with a signal ground line. The one or more power output stages and the control line have a mutual ground potential. A switch for electrically disconnecting the signal ground line is provided. The switch is opened, when the DC voltage converter is active and the switch is closed, when the DC voltage converter is inactive.

Abstract: A power electronics module includes a capacitor having a trough-shaped housing and at least one capacitor winding. An electronic unit includes a base on which the capacitor is mounted. A cooling plate in thermal contact with a cooling surface of the capacitor is formed by a bus bar. The cooling plate is on the base of the electronic unit.

Abstract: A device for controlling and regulating a DC voltage converter. The device may have one or more power output stages and a control unit with a signal ground line. The one or more power output stages and the control line have a mutual ground potential. A switch for electrically disconnecting the signal ground line is provided. The switch is opened, when the DC voltage converter is active and the switch is closed, when the DC voltage converter is inactive.

Abstract: A power electronics module includes a capacitor having a trough-shaped housing and at least one capacitor winding. An electronic unit includes a base on which the capacitor is mounted. A cooling plate in thermal contact with a cooling surface of the capacitor is formed by a bus bar. The cooling plate is on the base of the electronic unit.

Abstract: The present invention relates to a power capacitor (1) for the installation in a motor vehicle, comprising a capacitor unit (2) with at least one first and at least one second capacitor element (3, 4) whereby each capacitor element comprises at least two rolled-up plastic films that are provided with metal layers and are provided with metal-free edge strips on mutually opposite lying longitudinal sides, a circuit connection unit (5) and a housing (12), whereby the capacitor elements (3, 4) are circuit-connected in parallel by means of the circuit connection unit (5).