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US Patent Application 20100066289 - SYSTEM AND METHOD FOR CONTROLLING AN ELECTRIC MOTOR

Application 20100066289 Filed on September 17, 2008. Published on March 18, 2010

Inventors

Assignee

US Class

318/434LIMITATION OF MOTOR LOAD, CURRENT, TORQUE OR FORCE (E.G., PREVENTING OVERLOAD)

Attorney, Agent or Firm

International Class

H02P 7/00


Abstract text


A method for controlling an electric motor includes receiving a first control command that is indicative of a desired motor control. A current operating condition for the motor is determined. It is then determined whether the first control command meets at least one predetermined criterion at the current operating condition. A second control command that is different from the first control command is generated when the first control command meets the at least one predetermined criterion. Generating the second control command includes determining a current value of a motor parameter, changing the parameter value, and using the changed parameter value to generate the second control command. The second control command is then used to control the motor.

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