CONTROL SYSTEM FOR CONTROLLING OPERATION OF A DRIVE MOTOR

A control system for controlling operation of a drive motor includes an input device for providing a command signal that is indicative of a desired speed and direction of rotation of the drive motor. A sensor is associated with the drive motor and adapted to provide a sensor signal indicative of cur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kuras, Brian D, Sonth, Sangameshwar, Sharma, Arkit
Format:	Patent
Sprache:	eng
Schlagworte:	DREDGING ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SOIL SHIFTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A control system for controlling operation of a drive motor includes an input device for providing a command signal that is indicative of a desired speed and direction of rotation of the drive motor. A sensor is associated with the drive motor and adapted to provide a sensor signal indicative of current rotational speed of the drive motor. A controller receives the command signal, and determine whether the command signal is indicative of a desired zero speed to be associated with the drive motor. The controller also receives the sensor signal, and determine whether the current rotational speed of the drive motor is within a pre-defined range of difference from the desired zero speed. The controller then generates a de-rated torque command signal having a reduced gain factor, and reduce the current rotational speed of the drive motor based on the de-rated torque command signal.