Wheel-End Tire Pressure Management With Sensor-Driven Air Control
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Solution Overview
Problem
Conventional pressurized containers face issues such as slow or fast leakage, physical wear, and environmental wear, lacking reliable methods for pressure management, especially in applications like automotive and aerospace where pressure changes are rapid.
Innovation Solution
An automatic pressure management system that includes a housing unit, a pressurized fluid source, and a power interface, with sensors and a control system to dynamically control pressure within containers by compressing or releasing air, allowing for centralized power integration and independent operation at each wheel end, reducing system complexity and enabling efficient pressure maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pressure management methods are used, then system simplicity is maintained, but pressure control reliability deteriorates due to leakage and wear
Solution Approach 1:
The system divides pressure management into independent wheel-end units, each with its own pump and control system. This segmentation allows each unit to manage pressure independently, improving reliability by isolating failures to individual wheels rather than the entire system, while the modular nature keeps each segment relatively simple.
Solution Approach 2:
Pressure sensors continuously monitor tire pressure and provide feedback to control systems, which automatically adjust pump operation to maintain target pressure ranges. This closed-loop feedback mechanism significantly improves pressure control reliability by dynamically compensating for leakage and wear without requiring manual intervention.
2Ease of operation
If centralized power integration is implemented, then ease of operation is improved, but device complexity increases due to power interface requirements
Solution Approach 1:
The power interface is designed to provide multiple functions: electrical power delivery to wheel-end units, rotational power transmission through the rotor-stator mechanism, and potentially data communication. This multi-functionality consolidates several systems into one interface, improving ease of operation while the integrated design actually reduces overall complexity rather than increasing it.
Solution Approach 2:
The rotary joint with rotor and stator components acts as an intermediary mechanism that enables power and control signal transfer between the stationary housing and rotating wheel-end components. This intermediary solution resolves the complexity of providing powered operation to rotating elements without requiring complex mechanical linkages or flexible cables.
3Reliability
If dynamic pressure control is implemented, then pressure management effectiveness is improved, but loss of energy increases due to continuous pump operation
Solution Approach 1:
The pump operates periodically rather than continuously, activating only when pressure sensors detect that tire pressure has dropped below the target range. The control system monitors pressure levels and cycles pump operation accordingly, maintaining effective pressure management while significantly reducing energy consumption compared to continuous operation.
Solution Approach 2:
The system applies partial action by using the pump only when necessary to correct pressure deviations, rather than maintaining constant pressure through continuous operation. This approach achieves sufficient pressure management effectiveness by intervening only when pressure falls outside acceptable ranges, thereby minimizing energy waste during normal operating conditions.
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 effectively manages pressure within pressurized containers by reducing leakage, wear, and environmental impacts, providing reliable pressure control and simplifying installation and operation, especially in dynamic environments like vehicles and aerospace.
Implementation Method 1
The pump can be configured to compress air into the pressurized reservoir
Implementation Method 2
The system can selectively release pressurized air from the pressurized reservoir
Data Source
AI summary
A pressure management system for a tire assembly on a vehicle including: a housing unit, a pump, and a power interface.