Harvester Feed Rate Control Using Real-Time Component Load Feedback
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Solution Overview
Problem
Harvesters often operate at a fixed ground speed based on field conditions, leading to inefficiencies and potential overloading of crop processing components, resulting in downtime and reduced throughput.
Innovation Solution
A crop feed rate control system that monitors crop processing components using feedback signals to adjust harvesting rate (vehicle speed) dynamically, optimizing load distribution across components to prevent overloading and maximize throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the harvester operates at a fixed ground speed based on field conditions, then the harvesting rate is stable and predictable, but the crop processing components may become overloaded leading to downtime and reduced throughput
Solution Approach 1:
The system dynamically adjusts the harvesting rate by modifying ground speed based on real-time feedback from crop processing components. The control system continuously monitors component loads and automatically adjusts the harvesting rate to maintain optimal operation, preventing both overloading and underutilization of processing components.
Solution Approach 2:
The system employs feedback mechanisms where sensors monitor the load on crop processing components and transmit this information to the control system. The control system processes this feedback and adjusts the harvesting rate accordingly, creating a closed-loop control system that maintains optimal operation while preventing component overloading.
2Productivity
If the harvester increases the harvesting rate to maximize throughput, then productivity improves, but the crop processing components become overloaded causing downtime
Solution Approach 1:
The system uses dynamic adjustment of harvesting rate based on real-time component load conditions. When components approach their capacity limits, the system automatically reduces the harvesting rate to prevent overloading, ensuring continuous operation and maximizing overall productivity without causing downtime.
Solution Approach 2:
The control system proactively adjusts the harvesting rate before components become overloaded by monitoring load trends and predicting capacity limits. This preliminary action prevents overloading and subsequent downtime by reducing the harvesting rate in advance when component loads approach critical thresholds.
3Reliability
If the harvester reduces ground speed to prevent component overloading, then component reliability is maintained, but overall harvesting productivity decreases
Solution Approach 1:
The system dynamically adjusts ground speed based on real-time feedback from component load sensors. Rather than maintaining a fixed reduced speed, the system optimizes ground speed continuously, increasing it when components can handle the load and reducing it only when necessary, thereby maintaining both reliability and maximum possible productivity.
Solution Approach 2:
The system changes operational parameters (ground speed, harvesting rate) in response to varying component load conditions. By continuously adjusting these parameters based on feedback, the system maintains component reliability while maximizing productivity, avoiding the need for a permanently reduced operating speed.
Data Source
AI summary
A crop feed rate control system provides crop processing data to a vehicle control system. The crop feed rate control system includes one or more feedback systems that operably provide a feedback signal including data indicative of a detected load amount for crop processing components of the crop processing system and indicative of a target load amount for the crop processing components. A first control module receives the feedback signal and generates a controlling load signal based at least upon the feedback signal, the controlling load signal being indicative of a controlling component of the crop processing components. A second control module receives a targeted load signal and the controlling load signal, the second control module operably generating crop processing data indicative of a target harvesting rate.