Tractor Velocity Control for Soil-Specific Pulverization
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Solution Overview
Problem
Tractor users face challenges in determining the optimal forward velocity and peripheral velocity of tractor implements, such as rotavators, which affects soil pulverization quality due to varying soil conditions, as current methods fail to adapt these parameters based on soil type.
Innovation Solution
A system that classifies soil into hard, medium, or soft categories using draft force measurements from load cells, determining optimal operational ranges for forward and peripheral velocities, and providing user recommendations to adjust these velocities accordingly through an electronic device or IoT system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the forward velocity and peripheral velocity are fixed at constant values, then the operation is simple to control, but the soil pulverization quality deteriorates when soil conditions vary
Solution Approach 1:
The patent applies dynamics by making the velocity parameters adjustable rather than fixed. The system dynamically adapts the forward velocity and peripheral velocity based on real-time soil condition detection, allowing the velocities to change from static constants to dynamic variables that optimize pulverization quality across different soil types while maintaining user control capability.
Solution Approach 2:
The patent implements feedback through a closed-loop system where soil conditions are continuously monitored using sensors (draft force measurement, wheel slip detection), and this information feeds back to the control system to automatically adjust velocities. This feedback mechanism ensures that velocity adjustments are based on actual soil conditions, resolving the contradiction between simple control and quality optimization.
2Adaptability or versatility
If the velocities are adjusted manually by the user, then the system remains simple, but the adaptability to different soil types is insufficient
Solution Approach 1:
The patent applies self-service by enabling the system to automatically detect soil conditions and adjust velocities without requiring manual user intervention. The automated detection and control system serves itself by using sensors to monitor soil conditions and the controller to execute velocity adjustments, thereby achieving high adaptability to different soil types while keeping the user interface simple.
Solution Approach 2:
The patent replaces manual mechanical adjustment with automated electronic control. Instead of relying on the user to manually adjust velocities based on soil conditions, the system uses electronic sensors and controllers to automatically detect and respond to soil variations, substituting mechanical manual control with automated electronic systems that provide superior adaptability.
3Manufacturing precision
If the velocities are optimized for each soil type, then the pulverization quality improves, but the difficulty of determining optimal values increases
Solution Approach 1:
The patent replaces complex manual determination of optimal velocities with automated electronic measurement and control systems. Sensors automatically measure soil conditions (draft force, wheel slip), and the controller calculates optimal velocities based on predefined soil type characteristics, eliminating the need for users to manually determine optimal values while maintaining high pulverization quality.
Solution Approach 2:
The patent uses feedback from real-time soil condition monitoring to automatically determine optimal velocities. The system continuously measures actual soil conditions and adjusts velocities accordingly, eliminating the difficulty of manual determination by using objective, real-time data from sensors to guide velocity optimization for each soil type.
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
Ensures optimal soil pulverization by adjusting tractor and implement velocities based on soil type, improving operational quality and adaptability to different soil conditions.
Implementation Method 1
a draft force, wherein the soil type or condition can be classified as hard soil, medium soil, or soft soil wherein the draft force is an accumulation of horizontal axial forces sensed by the load cells
Data Source
AI summary
Embodiments determine a draft force based on forces at hitch points of the tractor, to determine type of soil, on which the tractor is plying. Embodiments determine rotational peripheral velocity of the implement and forward velocity of the tractor. Embodiments provide recommendations for adjusting the rotational peripheral velocity of the implement and the forward velocity of the tractor based on the soil type, the rotational peripheral velocity of the implement, and the forward velocity of the tractor. The recommendation is provided, if the ratio of the rotational peripheral velocity of the implement and the forward velocity of the tractor falls outside an optimal range.