Multiphase electrical machine especially starter generator for combustion engine has rotary position sensor system with fixed and rotating parts and eddy current sensor

摘要

A multiphase electrical machine, especially starter/generator for a combustion engine, comprises a sensor (35) of a rotating angle position comprising a rotary part (34) having a ring of alternate conductive and non-conductive segments (36,37) and fixed part (39) across a gap with three eddy current sensors whose impedance changes according the segment positions.