Dipper drop detection and mitigation in an industrial machine
First Claim
1. An industrial machine comprising:
- a dipper;
a user interface operable to generate a first signal related to a requested direction of dipper movement based on an operator input;
a sensor operable to generate a second signal related to an actual direction of dipper movement;
a hoist actuator having a hoist force operating parameter; and
a controller including a processor and executable instructions stored in a non-transitory computer readable medium, the controller operable to retrieve from the memory and execute the instructions toreceive the first signal related to the requested direction of dipper hoist movement,receive the second signal related to the actual direction of dipper hoist movement,compare the requested direction of dipper hoist movement to the actual direction of dipper hoist movement to detect a dipper drop condition, the dipper drop condition being detected after the requested direction of dipper hoist movement is opposite the actual direction of dipper hoist movement, andmodify a setting of the hoist force operating parameter of the hoist actuator after the dipper drop condition is detected.
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Accused Products
Abstract
An industrial machine that includes a dipper, a user interface, a sensor, a hoist actuator, and a controller. The user interface is operable to generate a first signal related to a requested characteristic of the industrial machine. The sensor is operable to generate a second signal related to an actual characteristic of the industrial machine. The hoist actuator has at least one operating parameter. The controller is configured to receive the first signal related to the actual characteristic, receive the second signal related to the requested characteristic, compare the requested characteristic to the actual characteristic to detect a dipper drop condition, and modify a setting of the at least one operating parameter of the hoist actuator after the dipper drop condition is detected. The dipper drop condition is detected after the requested characteristic does not match the actual characteristic
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Citations
22 Claims
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1. An industrial machine comprising:
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a dipper; a user interface operable to generate a first signal related to a requested direction of dipper movement based on an operator input; a sensor operable to generate a second signal related to an actual direction of dipper movement; a hoist actuator having a hoist force operating parameter; and a controller including a processor and executable instructions stored in a non-transitory computer readable medium, the controller operable to retrieve from the memory and execute the instructions to receive the first signal related to the requested direction of dipper hoist movement, receive the second signal related to the actual direction of dipper hoist movement, compare the requested direction of dipper hoist movement to the actual direction of dipper hoist movement to detect a dipper drop condition, the dipper drop condition being detected after the requested direction of dipper hoist movement is opposite the actual direction of dipper hoist movement, and modify a setting of the hoist force operating parameter of the hoist actuator after the dipper drop condition is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of controlling an industrial machine including a dipper, the method comprising:
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receiving, at a processor, a first signal related to an actual direction of dipper hoist movement from a sensor; receiving, at the processor, a second signal related to a requested direction of dipper hoist movement based on an operator input to a user interface; comparing, using the processor, the requested direction of dipper hoist movement to the actual direction of dipper hoist movement to detect a dipper drop condition, the dipper drop condition being detected after the requested direction of dipper hoist movement is opposite the actual direction of dipper hoist movement; and modifying, using the processor, a setting of a hoist force operating parameter of a hoist actuator after the dipper drop condition is detected. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An industrial machine comprising:
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a component; a user interface operable to generate a first signal related to a requested direction of component hoist movement based on an operator input; a sensor operable to generate a second signal related to an actual direction of component hoist movement; an actuator having hoist force operating parameter; and a controller including a processor and executable instructions stored in a non-transitory computer readable medium, the controller operable to retrieve from the memory and execute the instructions to receive the first signal related to the requested direction of component hoist movement, receive the second signal related to the actual direction of component hoist movement, compare the requested direction of component hoist movement to the actual direction of component hoist movement to detect a component drop condition, the component drop condition being detected after the requested direction of component hoist movement is opposite the actual direction of component hoist movement, and modify a setting of the hoist force operating parameter of the actuator after the component drop condition is detected. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification