Agricultural Baler Cooling Control via Dynamic Pressure Thresholds
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Solution Overview
Problem
Agricultural balers face inefficiencies due to excessive heat generation from clutches and brakes, leading to high cooling fluid requirements and costs, with existing systems shutting down unnecessarily when cooling fluid pressure drops below a fixed threshold, reducing operational efficiency.
Innovation Solution
A control unit dynamically sets threshold conditions for cooling fluid pressure and duration based on real-time baler data, allowing for adaptive management of cooling fluid supply to prevent heat damage and optimize baling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed threshold for cooling fluid pressure is used, then the system ensures adequate cooling protection, but it causes unnecessary shutdowns that reduce operational efficiency
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed cooling fluid pressure threshold to a dynamic threshold that varies based on operational conditions. The control unit adjusts the threshold according to factors such as clutch engagement status, brake activation, and ambient temperature, allowing the system to maintain adequate cooling protection while avoiding unnecessary shutdowns during low-risk operations.
Solution Approach 2:
The patent implements parameter changes by modifying the cooling fluid pressure threshold based on multiple operational parameters. The control unit receives inputs about clutch engagement, brake activation, and ambient temperature, then adjusts the threshold accordingly. This allows the system to adapt the cooling requirement to actual operational demands rather than using a static threshold.
2Reliability
If large cooling pumps are used to provide sufficient cooling fluid at all stages, then adequate cooling is ensured, but initial costs and operating costs increase
Solution Approach 1:
The patent applies partial action by providing cooling fluid at levels matched to actual operational needs rather than maintaining maximum cooling capacity continuously. The control unit modulates the cooling fluid supply based on operational conditions, providing adequate cooling during high-heat generation phases while reducing or suspending cooling during low-risk phases, thereby optimizing energy consumption.
Solution Approach 2:
The patent implements periodic action by alternating between different cooling fluid supply levels based on operational cycles. The system activates high-level cooling during clutch engagement and brake activation, reduces cooling during intermediate phases, and suspends cooling when not needed, creating a periodic cooling pattern that matches the thermal demands of baling operations.
3Temperature
If cooling fluid is provided at high pressure continuously, then heat dissipation is maximized, but energy consumption and operational costs increase
Solution Approach 1:
The patent applies dynamics by making the cooling fluid pressure variable rather than continuous. The control unit adjusts pressure based on real-time operational conditions, providing high pressure only when heat generation is significant (during clutch engagement and brake activation) and reducing pressure during lower-risk operations, thereby optimizing the balance between heat dissipation and energy consumption.
Solution Approach 2:
The patent implements parameter changes by modifying cooling fluid pressure as a variable parameter responsive to operational conditions. The control unit receives inputs about clutch and brake status and adjusts the cooling fluid pressure parameter accordingly, creating a dynamic pressure regime that matches thermal demands rather than maintaining constant high pressure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach prevents unnecessary shutdowns, reduces energy consumption, and lowers operational costs by optimizing cooling fluid usage according to varying baling stages and component activation statuses.
Implementation Method 1
at least one pump for supplying cooling fluid at a cooling fluid pressure to the at least one heat generating component
Data Source
AI summary
An agricultural system including an agricultural baler and a control unit. The baler includes a driveline including at least one heat generating component; a rotatable flywheel; a rotary input shaft connectable by the driveline to the rotatable flywheel; and at least one pump for supplying cooling fluid at a cooling fluid pressure to the at least one heat generating component. The control unit is configured to: receive baler-data indicative of one or more operating conditions of the agricultural baler; receive cooling-pressure-data indicative of a flow of the cooling fluid supplied by the at least one pump; set a threshold-condition based on the baler-data; and provide a control-signal to the agricultural baler based on a comparison between the cooling-pressure-data and the threshold-condition.