Pierburg Pump Technology Gmbh

Timo Kersten

Martin Helmis

Christian Schulz

Michael Stepanow

Ercan Birinci

Nenad Pavkovic

An electronically commutated electric motor includes a stator with stator coil(s), a magnetized rotor which rotates relative to the stator, the magnetized rotor having at least two opposite magnet poles which generate an excitation field, a static magnetic field sensor which detects the excitation field and generates a sensor signal having signal edges, a full-wave signal period, and half-wave lengths of an N- and an S-signal level, a motor energizing device which drives the stator coil(s) and generates a revolving stator field when triggered by a trigger signal, a memory unit which saves parameter values, and an evaluation unit which generates the trigger signal via a shift compensation of an asymmetric shift of the signal edges of the sensor signal. The shift compensation is calculated based on a position of a received sensor signal edge, the full-wave signal period, and the half-wave lengths of the sensor signal.

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Duesseldorf, Germany

Timo Kersten