Tire Pressure Deflation System for Agricultural Vehicles
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Solution Overview
Problem
Current tire inflation systems for agricultural vehicles are inefficient in adjusting tire pressure between large pressure differences, taking significant time to deflate tires and being costly, which hinders efficient transition from road to field terrain and increases soil compaction.
Innovation Solution
A tire air pressure deflation system with an adjustable air control system that sets a starting pressure and a finishing pressure lower than the starting pressure, using a relay valve and quick release valve to rapidly deflate tires, and an air supply system to inflate or expel air, allowing for quick pressure adjustments while the vehicle is in motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional tire inflation systems are used to adjust tire pressure between large pressure differences, then tire pressure can be adjusted, but the deflation process takes significant time and the system cost is high
Solution Approach 1:
The system segments the pressure adjustment process into two distinct phases: a rapid deflation phase using a quick-release valve to remove the majority of air quickly, followed by a precision control phase using a conventional inflation valve to achieve the target pressure. This segmentation allows the system to leverage the speed advantage of the quick-release valve while maintaining the precision of the conventional valve for final pressure adjustment.
Solution Approach 2:
The system introduces a quick-release valve as an intermediary component between the tire and the conventional inflation system. This intermediary valve provides a dedicated high-speed air evacuation path that operates independently from the conventional slow deflation process, enabling rapid pressure reduction without compromising the precision control capability of the original system.
2Object-affected harmful factors
If tire pressure is reduced to minimize soil compaction, then soil structure is protected, but vehicle performance and gas mileage deteriorate on roads
Solution Approach 1:
The system enables dynamic adjustment of tire pressure based on the operating environment. Operators can quickly deflate tires before entering field terrain to reduce soil compaction, and then rapidly reinflate them when transitioning to road terrain to restore vehicle performance and fuel efficiency. This dynamic adaptability allows the system to optimize for the appropriate performance criterion depending on the current operating context.
Solution Approach 2:
The system allows operators to perform preliminary tire deflation before entering sensitive field terrain, proactively preventing soil compaction issues before they occur. Similarly, rapid reinflation can be performed before entering road terrain to ensure optimal vehicle performance and fuel economy is restored in advance of the transition.
3Adaptability or versatility
If conventional tire inflation systems are used, then tire pressure can be adjusted, but the system cost is high
Solution Approach 1:
The system achieves multi-functionality by combining a conventional inflation valve (for precise pressure control and inflation) with a quick-release valve (for rapid deflation). This universal system can handle both slow precision adjustments and fast deflation operations, providing versatile pressure adjustment capability across different operational requirements without requiring multiple separate systems.
Solution Approach 2:
The quick-release valve component is a relatively simple, inexpensive mechanical device that can be easily installed and integrated into existing tire systems. By using this affordable component to handle the high-speed deflation function, the system achieves rapid pressure adjustment capability without incurring the high costs associated with complex electronic control systems or specialized expensive components.
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 enables rapid deflation of tires to reduce soil compaction and improve traction by efficiently adjusting tire pressure, reducing the time required for deflation and lowering costs compared to existing systems.
Implementation Method 1
a relay valve in gas communication with the air delivery system and the tire, the relay valve set by the air control system to a pressure lower than the desired pressure
Implementation Method 2
a quick release valve in gas communication with the tire and in gas communication with the relay valve
Implementation Method 3
an air compressor in gas communication with the air control system and having an outlet in gas communication with an air storage tank
Data Source
AI summary
A tire air pressure deflation system comprising an air delivery system having gas communication with at least one vehicle tire, the air delivery system maintaining the desired tire pressure, and an adjustable air control system adapted to control the air pressure maintained in the air delivery system and supply or expel the air from the tire, the air control system having a starting pressure setting, and a finishing pressure setting lower than the starting pressure setting, the finishing pressure setting having an active pressure setting lower than the finishing pressure setting. Upon activation of the tire air pressure deflation system, the tire deflates to the active pressure setting and the air control system deactivates upon reaching the finishing pressure setting.