Robert Boschgmbh

Armin Jerger

Ulrich Vollmer

Helmut Sautter

Vincent Thominet

Zishao Yang

Gerhard Hochenbleicher

Frank Wolf

Markus Becker

Michael Soellner

David Fricker

Tankred Mueller

Johannes Rehagen

Dominik Denz

Thomas Malich

The invention relates to a method for operating an electric synchronous machine, having the steps of: &#x2014;generating centered pulse-width-modulated switching signals for switching elements (T. . . T) of half-bridges, wherein two switching elements (T. . . T) are connected to a respective half-bridge in each case; second switching elements (T. . . T) of each half-bridge are actuated in a complementary manner to the first switching elements (T. . . T) of each half-bridge if a sufficient minimum measurement duration (T) is thereby provided during which the switching signals of switching elements (T. . . T) of two half-bridges lie at different potentials; &#x2014;otherwise: &#x2014;generating pulse-width-modulated switching signals for the switching elements (T. . . T) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (T) is provided, wherein &#x2014;the switching signals of the switching elements (T. . . T) are designed such that temporal changes corresponding to the minimum measurement duration (TM) in the switching signals of the switching elements (T. . . T) are prevented; and &#x2014;carrying out a 1-shunt current measurement within the provided minimum measurement duration T).

Method for operating an electric synchronous machine

A method for operating an electrically commutated machine. In at least one method step, in particular in at least one method step of overmodulation operation of the electrically commutated machine, a precommutation angle of the electrically commutated machine is set depending on an efficiency of the electrically commutated machine.

Method for operating an electrically commutated machine

A rain sensor, particularly for a motor vehicle, includes a light-conducting member arranged in an intermediate layer of a glass, and is designed as an optically closed system.

Rain sensor, especially for a motor vehicle

A rain sensor for a motor vehicle, having a transmitter emitting radiation, a receiver, and a holographically embodied diffractive element that has a linear-grating-like structure.

Rain sensor, in particular for a motor vehicle

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Sinzheim, Germany

Armin Jerger