Compactor Tire Pressure Control for Uniform Contact
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Solution Overview
Problem
Pneumatic compactor machines experience uneven ground contact pressure due to varying tire loads and pressures, leading to inconsistent compaction efforts across multiple tires, which existing automatic systems fail to address effectively.
Innovation Solution
A system and method that utilize sensors to determine real-time weight distribution across each tire, calculate target air pressures to achieve consistent compaction surface contact pressure, and adjust tire air pressures using a compressor and ventilation assembly to maintain uniform pressure across all tires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common target tire inflation pressure is used for all tires based on overall machine weight, then the system complexity is reduced, but uneven weight distribution across tires results in inconsistent compaction surface contact pressure
Solution Approach 1:
The system divides the compactor into individual tire segments, with each tire equipped with its own weight sensor and pressure control. The controller processes weight distribution data for each tire separately and determines individualized target inflation pressures, allowing precise control of compaction pressure at each tire location rather than using a single common pressure for all tires.
Solution Approach 2:
The system applies local quality by tailoring the target inflation pressure to the specific weight-bearing conditions of each tire. Based on the real-time weight distribution measured by sensors, the controller assigns different target pressures to different tires according to their local load conditions, ensuring optimal compaction pressure at each contact point with the ground.
2Manufacturing precision
If individual target air pressures are assigned to different tires based on real-time weight distribution, then consistent compaction surface contact pressure is achieved, but the device complexity and measurement requirements increase
Solution Approach 1:
The system implements feedback control by continuously monitoring the actual weight distribution on each tire through sensors and comparing it against the desired compaction pressure targets. The controller adjusts the inflation pressure of each tire in real-time based on this feedback, creating a closed-loop control system that maintains consistent compaction pressure despite variations in operating conditions.
Solution Approach 2:
The system enables self-service by allowing the compactor to automatically monitor its own weight distribution and self-adjust the tire inflation pressures without external intervention. The onboard sensors and controller work together to autonomously determine the optimal pressure for each tire and execute the adjustments through the air pressure control system.
3Measurement precision
If real-time weight distribution sensing is implemented on a per-tire basis, then accurate target air pressure determination is possible, but the quantity of sensors and system complexity increase
Solution Approach 1:
The system achieves universality by using a single multi-functional controller that handles data acquisition from all weight sensors, processes weight distribution calculations for multiple tires, determines target inflation pressures, and controls the air pressure system. This centralized controller consolidates multiple functions into one device, reducing the need for separate dedicated components for each tire while maintaining per-tire measurement precision.
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 consistent compaction surface contact pressure across all tires, regardless of weight distribution, thereby achieving uniform compaction efforts and improving the efficiency of pneumatic compactor machines.
Implementation Method 1
pneumatic wheel roller-style compactor... generate compaction by applying contact pressure from tires to the compaction surface... Compaction contact pressure of the tires can vary based on applied load and tire pressure
Data Source
AI summary
A system and a method for controlling tire air pressure of a compactor having a plurality of tires. A weight distribution of the compactor is determined according to a per-tire basis. Target air pressures for each of the tires are determined in order to achieve a consistent compaction surface contact pressure across all of the tires or a set of the tires. Air pressure of the tires is controlled to achieve the target air pressures to make the compaction surface contact pressure consistent across all of the tires or the set of the tires.