DEVICE FOR CONTROLLING A ROTATING ELECTRICAL MACHINE

摘要

The invention concerns a device for determining the position (?(t)) of the rotor (4) of a rotating electrical machine. The invention is characterized in that said device comprises a plurality of magnetic field sensors (52u, 52v, 52w) stationary relative to the stator (8) and adapted to deliver multiphase electric signals (s_u, s_v, s_W) representing a magnetic field detected by said sensors, and means for processing (MC) said multiphase electric signals by an operator ([M]) capable of providing diphase signals (sin?(t), cos?(t)) depending on said position. The invention is applicable to rotating electrical machines used in the automotive industry.