Controlling a crowd parameter of an industrial machine
First Claim
1. An industrial machine comprising:
- a dipper attached to a dipper handle;
a crowd motor having a retract torque parameter;
a hoist motor operable to apply a force to a hoist rope;
a first sensor operable to generate a first signal related to a first parameter of the industrial machine;
a second sensor operable to generate a second signal related to a second parameter of the industrial machine; and
a controller configured toreceive the first signal related to the first parameter and the second signal related to the second parameter,determine a retract torque limit based on the first signal and the second signal,set the retract torque parameter of the crowd motor to the retract torque limit, andoperate the industrial machine at or below the retract torque parameter.
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Accused Products
Abstract
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.
65 Citations
28 Claims
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1. An industrial machine comprising:
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a dipper attached to a dipper handle; a crowd motor having a retract torque parameter; a hoist motor operable to apply a force to a hoist rope; a first sensor operable to generate a first signal related to a first parameter of the industrial machine; a second sensor operable to generate a second signal related to a second parameter of the industrial machine; and a controller configured to receive the first signal related to the first parameter and the second signal related to the second parameter, determine a retract torque limit based on the first signal and the second signal, set the retract torque parameter of the crowd motor to the retract torque limit, and operate the industrial machine at or below the retract torque parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An industrial machine comprising:
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a dipper attached to a dipper handle; a crowd motor having a retract torque parameter; a hoist motor operable to apply a force to a hoist rope; a first sensor operable to generate a first signal related to a first parameter of the industrial machine; a second sensor operable to generate a second signal related to a second parameter of the industrial machine; and a controller configured to receive the first signal related to the first parameter and the second signal related to the second parameter, determine a value of the first parameter based on the first signal, compare the value of the first parameter to a first threshold, determine a value of the second parameter based on the second signal, compare the value of the second parameter to a second threshold, determine a retract torque limit based on the comparison of the value of the first parameter to the first threshold and the comparison of the value of the second parameter to the second threshold, compare the retract torque limit to a third threshold, set the retract torque parameter of the crowd motor to a first value if the retract torque limit is greater than or equal to the third threshold, set the retract torque parameter of the crowd motor to a second value if the retract torque limit is less than the third threshold, the first value greater than the second value, and operate the industrial machine at or below the retract torque parameter. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of controlling an actuation device of an industrial machine, the method comprising:
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generating, using a sensor, a signal related to a parameter of the industrial machine; receiving, at a processor, the signal related to the parameter of the industrial machine; determining, using the processor, a retract force limit based on the signal related to the parameter of the industrial machine; setting, using the processor, a crowd parameter of the actuation device to the retract force limit; and operating the industrial machine at or below the crowd parameter. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification