Agricultural Suspension Control via Closed-Loop Fluid Volume
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Solution Overview
Problem
High-clearance agricultural sprayers face challenges with uneven terrain, leading to potential damage from ground contact and loss of traction, which necessitates slow travel speeds, resulting in operator fatigue, machine wear, and reduced productivity.
Innovation Solution
A suspension system with multiple suspension assemblies, position sensors, electronically controlled valves, and a processor that determines fluid flow in a closed loop piston system to dynamically adjust the machine's height and weight distribution, minimizing errors and maintaining optimal suspension control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the machine travels at low speeds to avoid ground contact and maintain stability, then the machine reliability and safety are improved, but the productivity and time efficiency deteriorate
Solution Approach 1:
The suspension system dynamically adjusts the height of the agricultural machine body relative to the ground based on real-time terrain conditions. The system transitions from a static fixed-height design to a dynamic adjustable-height design, allowing the machine to automatically adapt to varying ground conditions while maintaining optimal travel speeds and productivity.
Solution Approach 2:
The system incorporates sensors that continuously monitor the position and attitude of the machine body, providing feedback to the control system. This closed-loop feedback mechanism enables real-time adjustments to suspension height and weight distribution, ensuring the machine maintains stability and avoids ground contact even at higher travel speeds.
2Reliability
If the machine travels at low speeds to prevent ground contact, then the risk of boom damage is reduced, but the time required for field treatment increases
Solution Approach 1:
The suspension system dynamically adjusts the height of the agricultural machine body relative to the ground based on real-time terrain conditions. The system transitions from a static fixed-height design to a dynamic adjustable-height design, allowing the machine to automatically adapt to varying ground conditions while maintaining optimal travel speeds and productivity.
Solution Approach 2:
The system incorporates sensors that continuously monitor the position and attitude of the machine body, providing feedback to the control system. This closed-loop feedback mechanism enables real-time adjustments to suspension height and weight distribution, ensuring the machine maintains stability and avoids ground contact even at higher travel speeds.
3Stability of the object's composition
If the machine travels at low speeds to maintain weight distribution, then traction and stability are improved, but operator fatigue and machine wear increase due to extended operation time
Solution Approach 1:
The suspension system dynamically adjusts the height of the agricultural machine body relative to the ground based on real-time terrain conditions. The system transitions from a static fixed-height design to a dynamic adjustable-height design, allowing the machine to automatically adapt to varying ground conditions while maintaining optimal travel speeds and productivity.
Solution Approach 2:
The system incorporates sensors that continuously monitor the position and attitude of the machine body, providing feedback to the control system. This closed-loop feedback mechanism enables real-time adjustments to suspension height and weight distribution, ensuring the machine maintains stability and avoids ground contact even at higher travel speeds.
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
The system allows for improved stability and reduced wear by dynamically adjusting the machine's height and weight distribution, enabling faster travel speeds while protecting the sprayer and maintaining efficient application coverage.
Implementation Method 1
multiple pressure sensors, each pressure sensor being configured to generate a signal indicating a pressure of a control volume
Implementation Method 2
multiple position sensors, each position sensor being configured to generate a signal indicating a position of a piston rod with respect to the base
Implementation Method 3
control the electronically controlled valves in a closed loop control system to flow fluid to or from the control volume to minimize the error value
Data Source
AI summary
In one aspect, a control system is provided which determines fluid flow in a suspension system for an agricultural machine by determining total fluid in a closed loop piston system. Fluid is determined using position sensors and a pressure transducers and application of the ideal gas with respect to each accumulator. A closed loop control system can then target an amount of fluid for optimum suspension control.