Electricity: motive power systems – Positional servo systems – 'reset' systems
Reexamination Certificate
2007-03-13
2007-03-13
Ben, Loha (Department: 2873)
Electricity: motive power systems
Positional servo systems
'reset' systems
C318S600000, C318S629000, C318S636000, C318S568200, C318S727000, C388S815000
Reexamination Certificate
active
11040230
ABSTRACT:
An adjustment system is disclosed for adjusting a proportional, integral, derivative controller in a limited rotation motor system. The adjustment system includes a first transform unit, a second transform unit, a model identification unit, and a PID adjustment unit. The first transform unit is for receiving a first digital signal that is representative of a motor control signal, and is for providing a first frequency domain sequence that is representative of a frequency domain representation of the motor control signal. The second transform unit is for receiving a second digital signal that is representative of a position detection signal, and is for providing a second frequency domain sequence that is representative of a frequency domain representation of the position detection signal. The model identification unit is for identifying a representation of a ratio of the first and second frequency domain sequences. The PID adjustment unit is for identifying appropriate values for the coefficient kpof a proportional unit of the system, for the coefficient kiof an integral unit for the system, and for the coefficient kdof a derivative unit for the system.
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Huan
Ben Loha
Gauthier & Connors LLP
GSI Group Corporation
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