Tire Pressure Estimation via Multi-Sensor Fusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The accurate and precise estimation of appropriate tire pressure is challenging due to the relationship between wheel temperature, tire temperature, and ambient temperature, leading to potential decreased tire life and hazardous inflation/deflation processes.
Innovation Solution
A tire inflate/deflate safety and maintenance indication system comprising sensors, a processor, and an output device that processes data from ambient temperature sensors, brake temperature sensors, tire pressure monitors, and rolling distance sensors to determine whether tire inflation or deflation is appropriate based on various environmental and operational factors, including weather data and scheduled routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tire pressure is monitored using traditional methods, then basic pressure data is obtained, but accurate and precise estimation of appropriate internal pressure is difficult due to temperature variations
Solution Approach 1:
The patent combines multiple sensors (temperature sensors, pressure sensors, humidity sensors) into an integrated monitoring system that collectively measures various parameters affecting tire pressure. This merging approach enables accurate pressure estimation by considering multiple factors simultaneously, resolving the contradiction between measurement precision and device complexity through systematic integration.
Solution Approach 2:
The system continuously monitors temperature, pressure, and humidity parameters and uses this feedback data to dynamically adjust and refine tire pressure estimates. The feedback mechanism allows the system to account for thermal expansion and environmental changes, improving measurement precision while maintaining manageable system complexity through iterative correction.
2Reliability
If tire inflation/deflation is performed without accurate temperature and pressure data, then operational simplicity is maintained, but hazardous conditions and decreased tire life occur
Solution Approach 1:
The system performs preliminary monitoring and analysis of temperature, pressure, and humidity conditions before tire inflation or deflation operations. By assessing environmental parameters in advance, the system provides recommended pressure values and safety indicators, ensuring reliable tire maintenance while simplifying the operational decision-making process for users.
Solution Approach 2:
The monitoring system automatically tracks tire conditions, calculates appropriate pressure values, and provides guidance without requiring manual intervention for complex calculations. This self-service capability enhances tire safety and longevity while maintaining ease of operation, as the system handles the complexity internally and presents simple recommendations to users.
3Measurement precision
If multiple sensors and comprehensive data processing are implemented, then accurate tire condition indication is achieved, but device complexity increases
Solution Approach 1:
The patent designs the monitoring system to perform multiple functions using integrated components: temperature monitoring, pressure measurement, humidity sensing, and predictive pressure calculation all within a single system framework. This multi-functionality approach achieves comprehensive tire condition assessment while managing device complexity through unified system architecture and shared processing resources.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods for indicating conditions for the appropriate inflation and/or deflation of tires (132,134) are disclosed. Some systems and methods include measuring a variable affecting the internal gas temperature of a tire (132,134), calculating by a processor (220) an estimated internal gas temperature of the tire (132,134), and determining whether the tire (132,134) is appropriate to inflate and/or deflate.