Controlling a crowd parameter of an industrial machine

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United States of America Patent

PATENT NO 9260834
SERIAL NO

14601716

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An industrial machine that includes a dipper, a dipper handle, a boom, a crowd motor, a hoist motor, a swing motor, a first sensor, a second sensor, and a controller. The first sensor generates a first signal related to a dipper handle angle and the second sensor generates a second signal related to a hoist rope angle. The first signal and the second signal are received by the controller. The controller determines, based on the first and second signals, a retract torque value. The retract torque value is compared to a retract torque threshold values. If the retract torque value is greater or equal to the threshold value, the retract torque of the crowd motor is set to a maximum value. If the retract torque is less than the threshold value, the retract torque of the crowd motor is set to a default value.

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Patent Owner(s)

Patent OwnerAddress
JOY GLOBAL SURFACE MINING INC4400 W NATIONAL AVENUE MILWAUKEE WI 53214

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Mooyoung Milwaukee, US 14 101

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