Tire Management Device for Equalizing Use Periods
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current tire management systems struggle to effectively equalize the use period of tires mounted on a vehicle, as the deterioration of tread rubber and tire casings progresses differently based on their positions, making it difficult to grasp and manage the overall tire state.
Innovation Solution
A tire management device comprising a deterioration state prediction means, usable period prediction means, and mounting position planning means, which predicts the deterioration tendency and usable period of each tire at its mounting position, and creates a change plan to equalize the use period by determining the mounting position deterioration characteristics and usable periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If tires are rotated at predetermined intervals to prevent uneven wear, then tread rubber wear is equalized, but the deterioration of the casing is not considered leading to premature disposal of tires with usable casings
Solution Approach 1:
The patent segments the tire assessment into two independent components: tread rubber wear evaluation and casing deterioration evaluation. By separately predicting tread wear amount and casing deterioration degree, the system can independently assess each component's remaining life, allowing the casing to be utilized fully even when tread wear reaches replacement thresholds.
Solution Approach 2:
The patent introduces a new assessment parameter (casing deterioration degree) alongside the traditional tread wear measurement. This parameter change enables the system to distinguish between tires that need tread replacement versus those that can continue serving with casing replacement, thereby extending overall tire service life.
2Reliability
If tires are managed based on visual inspection of tread wear, then tread rubber status is easily monitored, but the hidden deterioration of the casing cannot be detected leading to unsafe operation or premature replacement
Solution Approach 1:
The patent performs preliminary prediction of casing deterioration degree using accumulated operational data (temperature, pressure, load, distance) before actual failure occurs. This advance assessment allows the system to identify at-risk tires and schedule maintenance proactively, preventing catastrophic failures while avoiding premature replacements.
Solution Approach 2:
The patent introduces an intermediary prediction model that infers internal casing deterioration from external measurable parameters (temperature history, pressure fluctuations, load patterns). This intermediary approach bridges the gap between easily measurable operational conditions and the hard-to-detect internal casing state.
3Reliability
If all tires are replaced when any single tire reaches its usable limit, then safety is ensured, but other tires with remaining usability are wasted increasing cost
Solution Approach 1:
The patent segments the replacement decision into two independent evaluations: one for tread rubber and one for casing. This segmentation allows the system to determine that a tire can be replaced due to tread wear while the casing remains usable, enabling the casing to be transferred to another tire for continued service.
Solution Approach 2:
The patent implements a recovery mechanism where usable casings are identified and recovered from tires being replaced due to tread wear. These recovered casings are then allocated to other tires that need casing replacement, extending the overall utilization of tire resources and reducing waste.
4Stability of the object's composition
If tire rotation is performed frequently to equalize wear, then uneven wear is prevented, but the complexity of tire management operations increases
Solution Approach 1:
The patent implements dynamic tire management where rotation schedules are automatically adjusted based on real-time predictions of tread wear and casing deterioration. The system dynamically determines optimal rotation timing and sequences to equalize wear while minimizing the number of rotation operations required, reducing management complexity compared to fixed-interval rotation.
Data Source
Figure 1~3
Figure 4~6
Figure 7A~7D
AI summary
This tire management device enables tire management for equalizing the use period of tires mounted on a vehicle, and is provided with a deterioration state prediction unit which, for each mounting position, predicts the deterioration tendency and the deterioration state of the tires mounted on the vehicle; a usable period prediction unit which, for each tire mounting position, predicts the usable period of the tire on the basis of the deterioration tendency and deterioration state predicted by the deterioration state prediction unit; and a mounting position planning unit which, setting the deterioration tendency of each tire predicted by the deterioration state prediction unit as a mounting position deterioration characteristic of each mounting position of a tire in the vehicle, creates, on the basis of said mounting position deterioration characteristics and the usable periods of the tires predicted by the usable period prediction unit, a modification proposal for changing the mounting positions of the tires on the vehicle in order to equalize the use period of each tire.