The method 6 wherein {TAIL ~ the percent error} is determined using a difference between {HEAD ~ the operating speed} of the motor and the predetermined target speed of the motor 
The method 6 wherein { TAIL ~ the percent error } is determined using a difference between { HEAD ~ the operating speed } of the motor and the predetermined target speed of the motor
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH