Bayerische Motoren Werke Aktiengesellschaft

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Thomas Schimanek

Robert Griessbach

Uwe Waltrich

Dominik Gruber

Joerg Reuss

Andreas Schletz

Andre Schmitz

Christoph Bayer

Merten Jung

Florian Pfattrisch

Rene Richter

Maximillian Hofmann

Florian Hilpert

Christopher Kolbeck

Patrick Mueller

Christian Hieber

A power semiconductor module, as well as a corresponding method of manufacture, are provided. The power semiconductor module has a plurality of power switches. A first subset of the power switches forms part of a first electrical current branch. A second subset of the power switches forms part of a second electrical current branch. Within the current branches, the associated power switches are arranged symmetrically with respect to the DC voltage contacts and are connected in such a way that a current density which is formed in the individual current paths which are respectively assigned to one of the power switches is at least substantially homogeneously distributed during the high frequency operation of the power semiconductor module and/or in the operation of the power switches with high voltage gradients.

Power converter module and method for production thereof

A current source arrangement includes a first current source having a first terminal and a second terminal; a second current source having a first terminal and a second terminal; and a DC/DC converter having a first terminal pair and a second terminal pair. The DC/DC converter is designed to convert a first direct voltage applied at the first terminal pair into a direct voltage output at the second terminal pair, and/or to convert a first direct voltage applied at the second terminal pair into a direct voltage output at the first terminal pair. The first terminal pair of the DC/DC converter is connected in parallel to the first current source, wherein the second terminal pair of the DC/DC converter is connected in series to the second current source. The second terminal pair of the DC/DC converter and the second current source are connected in parallel to the first current source.

Energy storage arrangement comprising multiple energy stores

A method is provided for coupling at least one secondary energy source to an power supply network, in particular an on-board vehicle power supply, wherein a load is connected with a primary energy source having a first voltage characteristic. The at least one secondary energy source has a second voltage characteristic which has an operating voltage range overlapping with the first voltage characteristic. The primary energy source and the at least one secondary energy source can be connected via a power switching device to a node point of an intermediate circuit of the power supply network, to which the load is also connected. Before connecting a secondary energy source, the current drawn by the load is regulated such that the voltage connected to the node point of the intermediate circuit corresponds to a no-load voltage of the secondary energy source to be connected or is around the no-load voltage in a specified voltage range. In the case that the voltages correspond or if the voltage connected to the node point lies in the specified voltage range, the secondary energy source is electrically conductively connected to the node point via the power switching device. The current required by the load is regulated to the corresponding value, wherein the load is supplied from the primary and the secondary energy source.

Method for coupling at least one secondary energy source to an energy supply network, in particular an on-board vehicle power supply

An electric vehicle includes an electric machine, a generator generating a first AC output current, an internal combustion engine driving the generator, and a first electric plug-in charging device. When the engine is started, the generator supplies the battery with charging power. The first plug-in charging device is geometrically configured to be connectable with single phase AC power mains to supply the battery with charging power in a vehicle deactivated state. The first plug-in charging device is configured for a maximum electric power voltage load of 240 volts and a maximum current strength of 32 amperes. A second electric plug-in charging device is integrated into the vehicle. A DC charging station is connectable to the second charging device in the deactivated state so the DC charging station is usable either exclusively or simultaneously with the single phase AC power mains for charging the battery.

System for charging a rechargeable battery of an electric vehicle

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Woerthsee, Germany

Thomas Schimanek