Robert Boschgmbh

Marcellus Weber

Peter Braun

Michael May

Gebhard Michenfelder

Klaus Eckert

Michael Forscht

Michael Rummel

A controller for an electric motor includes a protective circuit for limiting current or for polarity reversal protection, the protective circuit including a field effect transistor having a gate. The protective circuit further includes a control unit for providing a control voltage for the gate, a smoothing capacitor for charge storage being provided at the gate.

Controller of an electric motor

The invention relates to a windshield wiper drive unit having a drive motor ( ) and a gear ( ) for transmitting a rotary motion of the motor ( ) to the shaft of a windshield wiper, having at least one sensor ( ) for detecting a position of the shaft, and having a control circuit ( ), which receives a detection signal of the sensor ( ) and has one or more inputs ( ) for receiving operating signals that define a desired operating state of the windshield wiper and is arranged to control a sequence of motions of the shaft as a function of the operating signal received, in which the control circuit ( ) is combined with the drive motor ( ) and the at least one sensor to make an integral component unit.

Windscreen wiper drive aggregate and a vehicle which is equipped with the same

A windshield wiper drive device for driving a windshield wiper ( ) in an alternating motion in a range of motion ( ) between two turning point positions (A, C) includes a motor ( ) for moving the windshield wiper ( ), a detector ( ) for detecting a time at which the windshield wiper ( ) moves past a given position (A, C) in the range of motion ( ), a control circuit ( ) for reversing the direction of motion of the motor ( ) at each turning point position (B, D), and an incremental transducer for detecting the distance traveled by the windshield wiper ( ) from the given position (A, C). The control circuit ( ) reverses the direction of motion of the motor ( ) as soon as it is detected that the windshield wiper ( ) has traveled a defined distance.

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Lauf, Germany

Marcellus Weber