Agricultural Vehicle Slip Control With Priority Parameter Adjustment
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Solution Overview
Problem
Agricultural vehicles face challenges in effectively managing slip conditions due to varying terrain and loads, leading to reduced traction and efficiency, particularly in situations where existing control systems fail to adjust operating parameters in real-time to prevent slip.
Innovation Solution
A control system that utilizes processing circuitry to adjust non-priority operating parameters, such as steering angle and engine speed, in response to slip thresholds, and further adjusts priority parameters like implement depth to maintain optimal traction, employing machine learning with data from sensors and location monitoring to preemptively mitigate slip conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing control systems adjust operating parameters to prevent slip, then traction is improved, but the system complexity increases due to multiple sensors and processing circuitry
Solution Approach 1:
The control system is segmented into distinct functional modules: slip detection module that monitors individual wheel slip, priority determination module that ranks operating parameters, adjustment module that modifies non-priority parameters first, and escalation module that adjusts priority parameters when slip persists. This modular segmentation manages complexity by organizing functions into discrete, manageable units.
Solution Approach 2:
The system performs preliminary actions by pre-establishing priority levels for operating parameters before slip occurs. When slip is detected, the control system immediately adjusts non-priority parameters without delay, and only escalates to priority parameters when necessary. This preliminary structuring of response protocols reduces real-time computational complexity.
2Reliability
If the control system adjusts priority operating parameters to reduce slip, then slip control effectiveness is improved, but the impact on other operating parameters increases
Solution Approach 1:
The system dynamically adjusts the priority classification of operating parameters based on current operational context and slip severity. Parameters that were non-priority may become priority if slip persists after initial adjustments, and the system can adapt parameter weights and adjustment magnitudes in real-time based on terrain conditions and vehicle state.
Solution Approach 2:
The control system modifies operating parameters such as engine speed, transmission gear, differential lock status, and implement depth in a hierarchical manner. Non-priority parameters are adjusted first with larger margins, while priority parameters are adjusted only when necessary with more conservative changes to maintain operational flexibility and adaptability.
3Reliability
If the control system responds to slip by adjusting operating parameters, then traction is improved, but the response time increases due to hierarchical adjustment process
Solution Approach 1:
The system pre-establishes priority levels and adjustment protocols for all operating parameters before slip occurs. When slip is detected, the control system immediately executes pre-planned adjustments to non-priority parameters without complex real-time decision-making, significantly reducing response time. Priority parameters have pre-defined adjustment rules that enable rapid escalation when needed.
Solution Approach 2:
The control system continuously monitors slip conditions and provides real-time feedback to the adjustment process. If slip reduces to acceptable levels after adjusting non-priority parameters, the system stops further adjustments. If slip persists or worsens, the feedback triggers escalation to priority parameter adjustments. This closed-loop feedback enables rapid, adaptive response with minimal time loss.
Data Source
AI summary
An agricultural vehicle including a control system to control slip of a tractive element. The control system includes processing circuitry configured to obtain an indication of a priority operating parameter from a plurality of operating parameters of the agricultural vehicle. The control system is configured to perform an adjustment to at least one non-priority operating parameter from the plurality of operating parameters of the agricultural vehicle when a first slip value of the tractive element exceeds a threshold. The control system configured to operate the agricultural vehicle according to the adjustment to the at least one non-priority operating parameter. The control system configured to perform an adjustment to the priority operating parameter upon a second slip value of the tractive element exceeding the threshold. The control system configured to operate the agricultural vehicle according to the adjustment to the priority operating parameter.