Electricity: motive power systems – Constant motor current – load and/or torque control
Reexamination Certificate
2006-01-03
2006-01-03
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Constant motor current, load and/or torque control
C318S434000, C318S801000, C318S700000, C318S712000
Reexamination Certificate
active
06982533
ABSTRACT:
A method and apparatus for use with a controller for controlling a machine wherein a torque reference value is provided, the method for identifying an error representative of the difference between the torque reference value and the torque applied to the machine and using the error value to modify machine operation, the method comprising the steps of obtaining feedback current values corresponding to the currents provided to the machine, mathematically combining the feedback current values to generate an error value, mathematically combining the error value and the torque reference value to generate a torque command value and using the torque command value to control the machine.
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Kerkman Russel J.
Seibel Brian J.
Leykin Rita
Quarles & Brady LLP
Rockwell Automation Technologies Inc.
Walbrun William R.
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