Harvester Overloading Control via Speed Reduction
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Solution Overview
Problem
Agricultural harvesting machines face challenges in efficiently overloading crops onto transport vehicles without reducing harvesting speed, as they must manage power reserves and vehicle positioning, leading to potential disruptions and operator complexity.
Innovation Solution
A method and device that identify the optimal time for activating the overloading process by reducing the harvesting machine's speed, using sensors and operator input to ensure power reserves are maintained and vehicles are positioned correctly for seamless transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the harvesting machine operates at maximum speed to maintain high productivity, then the harvesting efficiency is improved, but the power reserve becomes insufficient to activate the overloading process
Solution Approach 1:
The control device identifies an optimal activation time for the overloading process in advance, before the power reserve becomes insufficient. By calculating the time required for the overloading device to become operational and the power consumption profile, the system proactively reduces speed at the precise moment when power reserves are still adequate, ensuring smooth transition to overloading mode without power deficiency
2Power
If the driving speed is reduced to provide power reserve for overloading, then the power requirement is satisfied, but the harvesting process is slowed down
Solution Approach 1:
The system dynamically adjusts the driving speed based on real-time conditions and the identified optimal activation time. Rather than maintaining a constantly reduced speed, the control device temporarily reduces speed only during the critical transition period needed to activate the overloading device, then restores normal harvesting speed once overloading is operational, minimizing overall impact on productivity
Solution Approach 2:
By identifying the optimal activation time in advance, the system performs the speed reduction proactively when power reserves are still sufficient, avoiding emergency speed reductions that would cause greater productivity loss. The timing is calculated to ensure the overloading device becomes operational before power reserves are depleted
3Power
If the operator manually reduces speed to activate overloading, then power availability is improved, but the operational complexity and operator workload increase
Solution Approach 1:
The control device autonomously identifies the optimal activation time for overloading and automatically executes the speed reduction and overloading activation sequence without operator intervention. The system monitors power reserve levels, calculates the timing required for overloading device activation, and manages the entire transition process independently, freeing the operator from manual speed adjustments and overloading coordination tasks
Data Source
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AI summary
An unloading method for an agricultural harvesting machine, wherein the agricultural harvesting machine has an unloading device that can be pivoted from a transport position to an operating position for unloading harvested crops onto a transport vehicle. According to the invention, a point in time for activating the unloading of harvested crops is identified, and before activation of the unloading, the travel speed of the agricultural harvesting machine is reduced.