Robert Boschgmbh

Rostislav Rogov

Matthias Heil

Hans Partes

Bernhard Seubert

Matthias Boesing

Thorsten Baumhoefer

Alexander Ross

The invention relates to a method for actuating at least one semiconductor switch, in particular in a component of a motor vehicle. The at least one semiconductor switch can be switched with a control voltage () according to the following method steps: a1) specifying the control voltage () in a tolerance range () and a2) monitoring whether a control voltage () actually being applied to the at least one semiconductor switch exceeds at least one threshold (), wherein at least the following method step is carried out at at least one control time: b1) ascertaining a difference between the control voltage () actually being applied to the at least one semiconductor switch and the at least one threshold, the control voltage () specified according to step a1) being manipulated according to the at least one control time using the result from step b1).

Method for actuating at least one semiconductor switch, in particular in a component of a motor vehicle

The present invention relates to a circuit arrangement () for operating an electrical machine () in a motor vehicle, having a first electrical drive train (-) in which a first battery direct converter (-) can be connected to the electrical machine () via a first switching device (-); a second electrical drive train (-) in which a second battery direct converter (-) can be connected to the electrical machine () via a second switching device (-); a third electrical drive train (-) in which a third battery direct converter (-) is connected to the electrical machine (), one converter connection of which can be connected to the second drive train (-) via a third switching device (-) and the other converter connection of which can be connected to the second drive train (-) via a fourth switching device (-); a DC voltage section () for providing a DC voltage for a vehicle electrical system, which DC voltage section is connected to the first, second and third drive trains (---) via a rectifier (---) in each case; and a charging section () for supplying a charging current to the first, second and third battery direct converters (---), which charging section is connected to the first drive train (-) and to the third drive train (-).

Circuit arrangement for operating an electrical machine in a motor vehicle with provision of a DC voltage

The invention relates to an energy storage module for an energy storage device, comprising an energy storage cell module which has a storage cell series circuit of at least two energy storage cells, comprising a coupling device, which comprises a plurality of coupling elements and is designed to selectively connect the energy storage cell module into an energy supply line of the energy storage device or to bypass the energy storage cell module in an energy supply line, and comprising a driver module which is designed to generate drive signals for the plurality of coupling elements. The driver module has a first energy supply connection and a second energy supply connection. The first energy supply connection is connected to a first end connection of the energy storage cell module via a first supply line and to a first node point between two energy storage cells of the storage cell series circuit via a second supply line. The second energy supply connection is connected to a second end connection of the energy storage cell module via a third supply line and to a second node point between two energy storage cells of the storage cell series circuit via a fourth supply line. The second node point lies between the first node point and the first end connection.

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Stuttgart, Germany

Rostislav Rogov