Work Machine Load Weight Correction via Weighbridge Feedback
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Solution Overview
Problem
Existing work machines face challenges in accurately calculating the weight of carried materials due to variations in environmental temperatures, operator skills, carrying trajectories, and site layouts, leading to inconsistencies in weight calculation.
Innovation Solution
A work machine equipped with processing circuitry and memory that executes a process to calculate the load weight of carried materials, input a weighbridge measured value, and generate a correction value, allowing for precise weight adjustments based on environmental and operational factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If weight calculation is performed based on operational parameters, then productivity is improved, but measurement precision deteriorates due to environmental and operational variations
Solution Approach 1:
The system implements feedback by comparing the calculated load weight with the actual weighbridge measured value, generating a correction value that is applied to subsequent weight calculations. This closed-loop feedback mechanism continuously improves measurement precision while maintaining operational efficiency.
Solution Approach 2:
The system changes the parameter of weight calculation by introducing a correction value derived from the ratio between weighbridge measured values and calculated load weights. This parameter adjustment compensates for environmental and operational variations, improving measurement accuracy without sacrificing productivity.
2Measurement precision
If correction values are generated using weighbridge data, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The correction value acts as an intermediary that bridges the gap between the simple calculated load weight and the actual weighbridge measured value. This intermediary element improves measurement precision through a straightforward mathematical relationship rather than complex measurement systems.
Solution Approach 2:
The system creates a simplified copy of the weighbridge measurement process by using the correction value to adjust calculated weights. Instead of implementing complex real-time measurement systems, the patent uses a computational copy of the weighing process that achieves similar precision with less complexity.
3Measurement precision
If multiple factors are considered in weight calculation, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs self-service by automatically calculating correction values and applying them to weight measurements without requiring manual intervention. The processing circuitry autonomously handles the complex calculations involving multiple factors, maintaining ease of operation while improving precision.
Solution Approach 2:
The patent replaces manual weight calculation operations with automated processing circuitry that handles multiple calculation factors. This substitution of mechanical/manual operations with electronic processing improves precision while maintaining operational simplicity through automation.
Data Source
AI summary
A work machine includes processing circuitry, and a memory storing computer-readable instructions, which when executed by the processing circuitry, cause the work machine to perform a process including calculating a load weight of a carried material loaded on a vehicle, inputting a weighbridge measured value, and generating a correction value, based on the weighbridge measured value inputted in the inputting and the load weight calculated in the calculating, wherein the calculating includes correcting the load weight by the correction value to calculate a corrected load weight.