Back to results
US 12,650,331 B2Granted
System and method for calibrating process to compute weight of material in dump bodies
AssigneeCaterpillar Inc.
InventorsAlexander Eli Dowling, Steven Edward Johnson
Life of this patent
Estimating the term…
Abstract
A method for calibrating a process by which a weight of a material in a dump body of a machine is computed. The method includes acquiring first values correspondingly from one or more strain sensors in an unladen state of the dump body; activating an actuator to push the dump body against the strain sensors to simulate one or more forces exertable by one or more payloads in a laden state of the dump body; and acquiring second values correspondingly from the strain sensors when the actuator is activated to simulate the forces. Further, the method includes using the first values and the second values to calibrate the process.
Claims20
A method for calibrating a process by which a weight of a material in a dump body of a machine is computed, the method comprising:
- acquiring, by a controller, first values correspondingly from one or more strain sensors in an unladen state of the dump body;
- activating, by the controller, an actuator to push the dump body against the one or more strain sensors to simulate one or more forces exertable by one or more payloads in a laden state of the dump body;
- acquiring, by the controller, second values correspondingly from the one or more strain sensors when the actuator is activated to simulate the one or more forces;
- and
- using, by the controller, the first values and the second values to calibrate the process,
- wherein using the first values and the second values to calibrate the process includes:
- deducting, by the controller, the first values correspondingly from the second values to arrive at corrected values;
- obtaining, by the controller, actual components of the one or more forces corresponding to the corrected values;
- and
- deriving, by the controller, a linear regression equation based on the corrected values and the actual components of the one or more forces by which the weight of the material in the dump body is computed.
7 more elements
A system for calibrating a process, the system comprising:
- a memory for storing one or more sets of instruction;
- and
- a controller communicably coupled to the memory and configured to execute the one or more sets of instruction to:
- acquire first values correspondingly from one or more strain sensors in an unladen state of a dump body of a machine;
- activate an actuator to push the dump body against the one or more strain sensors to simulate one or more forces exertable by one or more payloads in a laden state of the dump body;
- acquire second values correspondingly from the one or more strain sensors when the actuator is activated to simulate the one or more forces;
- and
- use the first values and the second values to calibrate the process,
- wherein to use the first values and the second values to calibrate the process, the controller is configured to:
- determine corrected values based on the first values and the second values;
- obtain actual components of the one or more forces corresponding to the corrected values;
- and
- derive an equation based on the corrected values and the actual components of the one or more forces by which a weight of a material in a dump body is computed.
10 more elements
A machine, comprising:
- a frame;
- a dump body configured to receive a material;
- an actuator coupled between the frame and the dump body;
- one or more strain sensors configured to acquire positions between the dump body and the frame to detect a weight of the material;
- and
- a system for calibrating a process by which the weight of the material in the dump body is computed, the system including:
- a memory for storing one or more sets of instruction;
- and
- a controller communicably coupled to the one or more strain sensors and to the memory, the controller configured to execute the one or more sets of instruction to:
- acquire first values correspondingly from the one or more strain sensors in an unladen state of the dump body;
- activate the actuator to push the dump body against the one or more strain sensors to simulate one or more forces exertable by one or more payloads in a laden state of the dump body;
- acquire second values correspondingly from the one or more strain sensors when the actuator is activated to simulate the one or more forces;
- and
- use the first values and the second values to calibrate the process,
- wherein to use the first values and the second values to calibrate the process, the controller is configured to:
- determine, based on the first values and the second values, corrected values;
- obtain actual components of the one or more forces corresponding;
- and
- derive an equation based on the corrected values and the actual components of the one or more forces by which the weight of the material in the dump body is computed.
16 more elements
Dependencies are inferred from the claim text.