Vehicle Tire Pressure Monitoring for Early Damage Detection
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Solution Overview
Problem
Existing tire damage detection systems struggle to recognize tire damage early, especially when the pressure loss is slow or intermittent, and may issue false warnings due to temperature fluctuations or alternating pressure values.
Innovation Solution
A procedure and device that record individual tire pressure values, compare them to threshold values, and initiate a warning or damage report only if the pressure consistently falls below a lower threshold and the time difference between consecutive falls is less than a predetermined minimal time difference, while also compensating for temperature fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If tire pressure monitoring uses simple threshold comparison, then the system is simple and low-cost, but it cannot detect early damage or distinguish between temporary fluctuations and actual damage
Solution Approach 1:
The system stores a first time point when pressure first falls below threshold, preparing data structure in advance for damage analysis. This preliminary data collection enables subsequent comparison to distinguish temporary fluctuations from actual damage, improving detection accuracy without requiring complex real-time analysis algorithms
Solution Approach 2:
The system compares a second time point when pressure again falls below threshold with the stored first time point. This feedback mechanism analyzes the time difference to determine if damage occurred, allowing the simple threshold-based system to achieve accurate damage detection by learning from historical pressure patterns
2Reliability
If the system issues warnings whenever pressure falls below threshold, then all potential damage cases are captured, but false warnings occur due to temperature fluctuations and intermittent pressure variations
Solution Approach 1:
The system stores the first time point when pressure first drops below threshold, creating a reference datum before issuing warnings. This preliminary data recording allows the system to later compare time intervals and filter out false warnings from temporary fluctuations while maintaining high reliability for actual damage cases
Solution Approach 2:
The warning system dynamically adapts by comparing time intervals between pressure threshold violations. Instead of static immediate warnings, the system adjusts warning behavior based on whether the time difference between violations exceeds a predetermined minimum, dynamically filtering false positives while maintaining sensitivity to real damage
3Measurement precision
If temperature compensation is implemented, then pressure value fluctuations due to temperature are eliminated, but the system complexity and computational requirements increase
Solution Approach 1:
The system changes the pressure threshold parameter dynamically based on temperature measurements. By adjusting the threshold according to temperature-compensated pressure values, the system eliminates false fluctuations caused by thermal expansion/contraction of air in the tire, improving measurement accuracy through parameter adaptation rather than complex compensation algorithms
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
This approach enables early and accurate detection of tire damage, reduces false warnings, and avoids unnecessary damage reports by considering the consistency and rate of pressure loss over time.
Implementation Method 1
Recording individual tire pressure values of the vehicle tire with a tire pressure sensor
Implementation Method 2
This prevents fluctuations in the tire pressure values due to temperature fluctuations
Data Source
Figure 1~2
AI summary
The invention relates to a method and a device for carrying out the method for detecting damage to a vehicle tire, comprising at least the following steps: a) capturing individual tire pressure values (1) of the vehicle tire with a tire pressure sensor, b) comparing the tire pressure value (1) with a lower threshold value (2), c) initiating a warning message when one of the tire pressure values (1) falls below the lower threshold value (2), wherein a damage message is issued if the tire pressure value (1) falls below the lower threshold value (2) several times within a predetermined minimum time difference (5).