Motor control method and motor control apparatus

Details Motor control method and motor control apparatus Motor control method and motor control apparatus

2008-02-21

2010-12-21

Benson, Walter (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S278000, C318S400130, C318S603000, C318S615000

Reexamination Certificate

active

07855522

ABSTRACT:
A motor control method includes the steps of: measuring a time period from an output of a drive detection signal to a next output of a drive detection signal; storing the measurement result at each time of output of a drive detection signal as a measured cycle; calculating a driven velocity of the driven object based on the stored measured cycle; calculating an operation amount of the motor such that the calculated driven velocity is equal to a predetermined target velocity. In the motor control method, it is determined, at each calculation timing, whether or not the driven object is in a low velocity state where an actual velocity is lower than the target velocity. When determined affirmative, calculation of the driven velocity of the driven object is performed based on a measured value being currently measured at the calculation timing in place of the stored measured cycle.

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