Tire Wear Monitoring with Automatic Reset for Tire Replacement
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Solution Overview
Problem
Existing tire management systems require manual reset for tread wear monitoring when a new or different tire is installed, which is inconvenient and lacks automation for determining the degree of tread wear on used tires.
Innovation Solution
A vehicle control system uses a tire identifier to determine if a tire is in an unused state and calculates the tread depth, adjusting the tread wear algorithm to account for an initial growth phase in new tires and offsetting for used tires' previous wear, allowing for automatic reset and portability without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If circumferential-based tire wear monitoring systems are used, then tread wear can be estimated by comparing tire circumference with new tire circumference, but manual reset is required upon installation of new or different tires
Solution Approach 1:
The system performs preliminary actions by storing baseline circumference data in the tire sensor before the tire is installed on the vehicle. This pre-stored data enables the control unit to automatically calculate tread wear without requiring manual reset, as the reference measurement is already available in the sensor memory when the tire is first mounted.
Solution Approach 2:
The tire sensor performs self-service by autonomously storing its own baseline circumference data and providing this information to the vehicle control unit. The system eliminates the need for external manual intervention by having the sensor automatically maintain and transmit the reference data needed for tread wear calculations throughout the tire's service life.
2Measurement precision
If vehicle sensors are calibrated to specific tire characteristics, then accurate tread wear monitoring can be achieved, but the system lacks portability when tires are transferred between vehicles
Solution Approach 1:
The tire sensor serves multiple functions: it stores baseline circumference data, provides this data to any vehicle control unit, and enables tread wear monitoring across different vehicles. The sensor's universal data storage capability allows the same sensor to accurately monitor tread wear on any vehicle without requiring recalibration or manual setup, making the system adaptable and portable.
Solution Approach 2:
The tire sensor acts as an intermediary that carries the baseline circumference data between the tire manufacturer and any vehicle control unit. This portable data carrier enables the control unit to immediately calculate tread wear accurately without needing pre-calibration specific to each vehicle-tire combination, facilitating seamless tire transferability.
3Measurement precision
If new tires undergo an initial growth phase increasing circumference, then accurate tread wear monitoring must account for this expansion, but manual intervention is needed to distinguish growth from wear
Solution Approach 1:
The system dynamically adapts to tire growth by continuously monitoring circumference changes and automatically adjusting the baseline reference data stored in the tire sensor. When the control unit detects that a new tire has been installed, it updates the baseline circumference value to account for the growth phase, enabling automatic distinction between growth and actual tread wear without manual intervention throughout the tire's lifecycle.
Data Source
AI summary
Methods, apparatuses, systems, devices, and computer program products for eliminating the need for a manual tread wear system reset in a tire management system are disclosed. In a particular embodiment, a method to eliminate the need for a manual tread wear system reset in a tire management system includes a vehicle control system (VCS) of a vehicle receiving a tire identifier for a tire corresponding to a tire sensor. In this embodiment, the vehicle control system determines, based on the tire identifier, whether the tire is in an unused state and calculates, based on whether the tire is in an unused state, a tread depth for the tire.