Robert Boschgmbh

Bastian Kloer

Klaus Dengler

Daniel Rombach

Roland Walter

Peter Nadig

Friedbert Weller

An electric machine includes a stator, a rotor, a printed circuit board having at least one sensor configured to detect a position of the rotor, and a system configured to arrange the at least one sensor in different positions on the stator relative to the stator.

Method and apparatus for detecting the position of a rotor in an electric machine

An electric motor includes a stator, and a rotor which has a rotor shaft. At least one rotor position magnet is disposed on the rotor shaft, and is configured to provide a magnetic signal that can be evaluated, upon a rotation of the rotor shaft, at least for the purpose of determining a respective rotor position of the rotor. At least one carrier is disposed in a rotationally fixed manner on the rotor shaft, and is connected to the at least one rotor position magnet. The carrier includes at least one opening configured to compensate imbalance of the rotor.

Electric motor having a stator and a rotor

The invention relates to a method and a circuit for regulating the speed of a commutator series-wound motor, especially a universal motor (), which is supplied with a current from an a.c. voltage source () by means of a semiconductor switching element () mounted in series with an armature winding () and a field winding () and controlled by a control unit () according to a nominal speed value. The control unit () receives, as input signals, signals corresponding to the total voltage drop (Umot) when the motor () is supplied with a current, and a substitute signal for the intensity of the motor current (I), corresponding to the voltage drop (Ua, Ufa) on the armature () alone or on the armature () and on a part () of the field winding (). The input signals of the control unit () are compared with motor-typical characteristic lines of the voltages on the excitation field () and/or on the armature, stored in the control unit, and control signals for the semiconductor switching element are formed from the deviations.

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Stuttgart, Germany

Bastian Kloer