Abstract: A safety circuit arrangement is provided for an electrical drive unit, wherein the electrical drive unit includes a traction battery, an intermediate circuit capacitance connected in parallel to the traction battery, and an electric machine which can be supplied with electrical power by the traction battery. The electric machine has a plurality of phases which can be connected to the traction battery via a controllable inverter having a plurality of switch elements.

Abstract: An apparatus is provided for providing a supply voltage for operating an electrical device in a vehicle having a battery for producing the supply voltage. The battery is connected to a supply-voltage terminal for providing the supply voltage. A contacting apparatus contacts a replaceable battery for providing a charging voltage for charging the battery. In dependence on a state of charge of the battery, the replaceable battery can be electrically coupled to the main battery or disconnected from the main battery by way of the coupling apparatus.

Abstract: A circuit arrangement for operating an energy store of an electric and/or hybrid vehicle includes an analog monitoring circuit. The analog monitoring circuit is designed and arranged to detect a measurement signal that is representative of a current flowing through the energy store, and to generate a predetermined first control signal in a manner dependent on the measurement signal. The circuit arrangement further has a semiconductor switching element which is designed to electrically couple, in a first switching state, the energy store to an electrical energy network, and, in a second switching state, to electrically decouple the energy store from the electrical energy network, The semiconductor switching element includes a control terminal which is coupled by signaling technology to an output of the monitoring circuit. The switching state of the semiconductor switching element is adjustable in a manner dependent on the first control signal.

Abstract: A high-voltage energy storage module for supplying a voltage, in particular to a motor vehicle, includes at least two storage cells and at least one electrically conductive connection between two poles of different storage cells. The individual connection consists of multiple adjacently arranged bonding wires, and each bonding wire is secured to the two poles by means of a wire bonding.

Abstract: A vehicle includes a power electronics unit for converting energy between a DC circuit and a polyphase machine, wherein the power electronics unit has a power module, a driver board, and a control board. The power electronics unit has two DC current rails, wherein the DC circuit can be connected to the same, and the power electronics unit has phase current rails, wherein the polyphase machine can be connected to the same. The number of the phase current rails corresponds to the number of the phases of the polyphase machine. The arrangement of the power module, the driver board, and the control board corresponds to a stacked or sandwiched construction, the phase current rails are electrically connected to the power module, and the control board has a passage for each of the phase current rails, wherein one phase current rail is fed through each passage.

Abstract: A battery system has battery cells, a transformer which has a first winding which can be connected parallel to the cell arrangement, and a plurality of second windings. Each second winding can be connected parallel to one of the battery cells. The transformer includes a third winding, which is provided for feeding energy from an external energy source to the battery system.

Abstract: An initialization method for a wireless network is disclosed with at least one receiver node and/or switching node and transmitter node in which one transmitter node is allocated to at least one receiver node. An operating method is also disclosed for a wireless network with at least one receiver node and/or switching node and transmitter node. At least one allocation is made between a transmitter node and a receiver node after such an initialization method with the steps of: transmission of a wireless message at the transmitter node, reception of the wireless message at one or more switching nodes, and if the switching node is not the receiver node, transmission of the wireless message at the switching node and reception of the message at the preset receiver node.

Abstract: An initialization method for a wireless network is disclosed with at least one receiver node and/or switching node and transmitter node in which one transmitter node is allocated to at least one receiver node. An operating method is also disclosed for a wireless network with at least one receiver node and/or switching node and transmitter node. At least one allocation is made between a transmitter node and a receiver node after such an initialization method with the steps of: transmission of a wireless message at the transmitter node, reception of the wireless message at one or more switching nodes, and if the switching node is not the receiver node, transmission of the wireless message at the switching node and reception of the message at the preset receiver node.