Method and apparatus for improving the position accuracy of...

Details Method and apparatus for improving the position accuracy of... Method and apparatus for improving the position accuracy of...

2011-05-17

2011-05-17

Masih, Karen (Department: 2837)

Electricity: motive power systems

Positional servo systems

With stabilizing features

C318S610000, C318S567000

Reexamination Certificate

active

07944167

ABSTRACT:
A method of operating a motor controlled by a closed loop servo control system is provided. The closed loop servo control system employs a digital filter, such as a PID filter, that employs one or more gain coefficients. The method includes temporarily increasing one or more of the gain coefficients by a corresponding first predetermined amount when the motor reaches a coefficient boost motor position that is a predetermined distance before a commanded motor rest position, and decreasing the one or more of the gain coefficients by a corresponding second predetermined amount a predetermined time after the motor reaches the commanded motor rest position.

REFERENCES:
patent: 2004/0217143 (2004-11-01), Berg et al.

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