Siemens Aktiengesellschaft

Valeo Siemens Eautomotive Germany Gmbh

Timur Werner

Dragan Mikulec

Marcel Lutze

Markus Reymann

Karsten Wiedmann

The invention relates to a control device for an inverter which includes three half-bridges each having a first power switching element connected to a first DC voltage potential and a second power switching element connected to a second DC voltage potential. The control device is arranged for driving the power switching elements for converting a DC voltage present between the DC voltage potentials into a polyphase AC current in a normal operating mode and for transferring the inverter from the normal operating mode into a safe operating mode. The control device is further set up to alternately drive the power switching elements in the safe operating mode for switching single-phase active short circuits and for switching two-phase active short circuits.

Control device for an inverter, inverter for a vehicle, vehicle and method of operating an inverter

A device supplying an electrical voltage from a battery system includes a series connection composed of a first battery submodule supplying a first battery submodule voltage and at least one second battery submodule supplying a second battery submodule voltage, a first voltage conversion module receiving the first battery submodule voltage and converting the first battery submodule voltage into an AC output voltage to be supplied to an electrical component connected to the first voltage conversion module, and a coupling device electrically connecting the first voltage conversion module to the first battery submodule and to the at least one second battery submodule such that the first voltage conversion module receives a sum voltage composed of the first battery submodule voltage and the second battery submodule voltage.

Device for providing an electrical voltage as well as drive arrangement and method

The invention relates to an apparatus () for state of charge compensation having a battery system () for providing electrical energy comprising a series connection of a first battery sub-module () and a second battery sub-module (') having a first voltage conversion module (&#x2032;) wherein the first voltage conversion module (&#x2032;) is electrically connected to the second battery sub-module (&#x2032;), and wherein an electrical component () can be connected to the first voltage conversion module (&#x2032;) and can be supplied with electrical energy from the connected second battery sub-module (&#x2032;), wherein the apparatus () has a switching device () for switching an electrical connection between the first battery sub-module () and the first voltage conversion module (&#x2032;) and wherein the apparatus () has a control device () which is designed to control the switching device () such that electrical energy flows from the first battery sub-module () to the second battery sub-module (&#x2032;) and/or that electrical energy flows from the second battery sub-module (&#x2032;) to the first battery sub-module ().

Growing community of inventors

Erlangen, Germany

Timur Werner