Tire Replacement Method for Fleet Efficiency
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Solution Overview
Problem
Vehicles with different tire replacement conditions between front and rear tires face inefficiencies in tire rotation, leading to increased tire stock and unused periods due to conventional methods not accounting for varying wear rates.
Innovation Solution
A method and device that identify and swap rear tires with specific life amounts between vehicles, allowing for efficient tire replacement by extracting vehicles with rear tires at 1/3 and 0 life amounts, and replacing them with front tires, thereby optimizing tire usage and reducing stock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional tire rotation is applied to vehicles with different front and rear tire replacement conditions, then tire replacement can be performed, but tire resources are not used efficiently and stock amount increases
Solution Approach 1:
The patent implements dynamic tire replacement by continuously monitoring the life amounts of front and rear tires across multiple vehicles and adjusting replacement strategies in real-time. The system dynamically identifies vehicles α and β based on current tire conditions, enabling flexible replacement decisions that adapt to varying tire wear rates between front and rear positions.
Solution Approach 2:
The patent changes the replacement parameter threshold by introducing specific life amount ratios (front tire life amount ≥ 1/3 of rear tire life amount) to determine when replacement should occur. This parameter-based approach allows optimization of tire utilization by replacing tires at scientifically determined life stages rather than using fixed replacement schedules.
2Reliability
If front tires are replaced when life amount becomes 2/3 L and rear tires when life amount becomes 0, then tire replacement can be performed, but un-used period becomes long
Solution Approach 1:
The patent performs preliminary identification of vehicles α and β before actual tire replacement occurs. By pre-screening vehicles based on tire life amount conditions and maintaining a ready pool of candidate vehicles, the system prepares replacement tires in advance, eliminating waiting time and reducing the unused period of tires.
Solution Approach 2:
The patent implements continuous feedback monitoring of tire life amounts across the vehicle fleet. The system constantly tracks the remaining life of front and rear tires, compares them against replacement thresholds, and automatically triggers replacement actions when conditions are met, ensuring optimal replacement timing that minimizes unused periods while maintaining reliability.
3Ease of manufacture
If tire rotation is not carried out appropriately, then tire replacement can be performed, but the stock amount of tires with residual life increases
Solution Approach 1:
The patent makes tires universal by enabling front tires to be transferred to rear positions and vice versa, depending on their remaining life and vehicle requirements. The system treats all tires in the fleet as interchangeable resources that can be allocated to any position based on their condition, maximizing utilization and minimizing waste of tires with residual life.
Solution Approach 2:
The patent recovers value from tires that would otherwise be discarded by identifying their remaining utility. Instead of discarding front tires when reaching 2/3 L life amount, the system recovers them by transferring to vehicles where they can continue serving as rear tires or be used to replace rear tires in other vehicles, thereby reducing the stock of tires with residual life.
Data Source
AI summary
When tires of a vehicle equipped with two front tires and four rear tires are to be replaced, a life amount L, which serves as an indicator for tire replacement, is grasped for the front and rear tires of a plurality of vehicles that are to be tire replacement targets. After extracting, from among the plurality of vehicles, a vehicle α equipped with the rear tires having a life amount of (⅓) L and a vehicle ß equipped with the rear tires having a life amount of 0, the rear tires of the vehicle ß are replaced with the front tires of the vehicle α and the front tires of the vehicle ß, and new tires are fitted to the vehicle α and the vehicle ß as the front tires of the vehicle α and the front tires of the vehicle ß.