Patent ID: 7253580

Claim:
A method for controlling a motor, comprising: controlling the motor in response to a first adaptive control method during a first phase of motor operation, wherein said first phase is an acceleration phase; controlling the motor in response to a second adaptive control method during a second phase of motor operation, wherein the second adaptive control method comprises a proportional-integral-derivative (PID) method, and wherein the second phase is a constant-speed phase and occurs after the first phase; detecting when the motor reaches a target speed during the first phase; and controlling the motor in response to the first adaptive control method during a deceleration phase of motor operation occurring after the second phase; wherein controlling the motor in response to the first and second adaptive control methods comprises measuring a motor speed, determining a control value using the motor speed and providing an input signal to the motor based on the control value, wherein determining the control value using the motor speed in the first phase comprises obtaining the control value from a look-up table.