Work Vehicle Commodity Metering Calibration Method
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Solution Overview
Problem
Existing work vehicle metering systems lack accurate calibration methods, leading to inconsistencies in commodity application rates during seeding and fertilizing processes, affecting efficiency and precision.
Innovation Solution
A method and system that utilize a control system with a processor to perform multiple calibration routines at different speeds, measuring and correlating commodity amounts with corresponding speeds to determine a calibration factor, which is used to generate a control command for the metering element, ensuring precise commodity delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single calibration routine is used, then the calibration process is simple and quick, but the calibration accuracy is insufficient leading to inconsistencies in commodity application rates
Solution Approach 1:
The calibration process is divided into multiple distinct calibration routines, each operating at different speeds. This segmentation allows the system to calibrate across multiple operating conditions separately, improving overall calibration accuracy without requiring a single complex calibration procedure.
Solution Approach 2:
The system performs preliminary calibration routines at different speeds before actual operation. By conducting these calibration routines in advance and storing the resulting calibration factors, the system ensures accurate commodity application rates are established before field use begins.
2Measurement precision
If multiple calibration routines at different speeds are performed, then calibration accuracy is improved, but the calibration time and process complexity increase
Solution Approach 1:
The calibration routines are performed as preliminary actions before actual field operation. The calibration factors determined during these preliminary routines at different speeds are stored and ready for use, eliminating the need to repeat time-consuming calibration procedures during actual commodity application operations.
Solution Approach 2:
Instead of performing continuous real-time calibration during operation, the system creates copies of calibration data by running routines at different speeds and storing the results. These stored calibration factors serve as references for maintaining accurate commodity application rates during actual work, avoiding repeated time-consuming measurement processes.
3Adaptability or versatility
If the metering element operates at variable speeds during calibration, then the system adapts to different operating conditions, but the measurement and data processing complexity increases
Solution Approach 1:
The calibration process segments operation into distinct speed ranges (first, second, and third speeds). By handling each speed range separately in dedicated calibration routines, the system adapts to different operating conditions while maintaining manageable data processing complexity through structured separation of calibration tasks.
Data Source
AI summary
A method includes performing a plurality of calibration routines in which a metering element operates at different speeds. The method also includes receiving a respective plurality of measurements of commodity amounts metered out during the calibration routines. The method further includes generating a calibration factor for operating the metering element based on data generated from the measurements taken from the calibration routines. Also, the method includes generating a control command for the metering element according to the calibration factor. The method additionally includes operating, by the control system, the metering element according to the control command.