DURING MOTOR JERK-OUT, THE REAL COMPONENT OF A STATOR CURRENT REI IS MEASURED AS AN APPROXIMATION TO TORQUE CURRENT IT, AND A REFERENCE ACCELERATION AREF IS OBTAINED AS AN APPROXIMATION TO THE MOTOR ACCELERATION, FOR PROVIDING, BY MEANS OF LINEAR REGRESSION, THE Y INTERCEPT OF A LINE DEFINING THE RELATIONSHIP BETWEEN REI AND AREF, WHICH INTERCEPT DEFINES REI AT A CONSTANT HIGH SPEED (REI CONSTANT HIGH SPEED) FOR LINEARLY RELATING REICONSTANT HIGH SPEED TO A COMPENSATION FREQUENCY FCOMP, WHICH IS PROVIDED TO A SUMMER FOR SUMMING FCOMP WITH A REFERENCE FREQUENCY FREF USED FOR DICTATING MOTOR SPEED. THE STATOR CURRENT I AND AREF ARE SAMPLED DURING JERK-OUT WHEN THE MOTOR IS AT HIGH SPEED BECAUSE THERE THE REAL COMPONENT OF THE STATOR CURRENT REI IS APPROXIMATELY EQUAL TO IT.(FIG 2)
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