A) after a change of the rotor position signal , which change is associated with a change between two rotor poles and follows a commutation of the current through the at least one phase , which change is referred to hereinafter as a first pole change, {HEAD ~ a first value} of {TAIL ~ the motor current} is ascertained 
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A ) after a change of the rotor position signal , which change is associated with a change between two rotor poles and follows a commutation of the current through the at least one phase , which change is referred to hereinafter as a first pole change , { HEAD ~ a first value } of { TAIL ~ the motor current } is ascertained
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH