TPMS Module and RFID Tag Data Sharing Interface

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current tire pressure monitoring systems (TPMS) lose their unique identifier when the TPMS module is removed from the tire, making it impossible to associate measured tire parameter data with the correct tire identification number throughout the tire's life.

Innovation Solution

An integrated sensor module and RFID tag data sharing system is implemented, using an I2C or SPI interface to enable communication between the RFID tag and the TPMS module, allowing the unique tire ID to be stored and accessed by the TPMS module, and for measured tire parameter data to be shared between the two devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the TPMS module is removed from the tire, then the tire can be serviced or replaced, but the unique identifier is lost and tire parameter data cannot be associated with the correct tire ID

Engineering Contradiction:

Improvetire serviceabilityVSAvoidtire identification association

Core Design Contradiction:

Ease of repairVSLoss of information

Solution Approach 1:

The system separates the unique tire ID storage function from the TPMS module by placing it in a persistent RFID tag embedded in the tire structure. This segmentation allows the TPMS module to be removed for service while the RFID tag remains with the tire, preserving the tire's identity throughout its lifecycle.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The RFID tag acts as an intermediary between the tire and the TPMS module, storing the unique tire ID and enabling data association. The tag serves as a persistent mediator that maintains the tire's identity even when the TPMS module is removed or replaced during servicing.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If separate RFID readers and TPMS readers are used to read tire data, then all tire information can be accessed, but the system complexity and cost increase

Engineering Contradiction:

Improvecomplete tire data accessVSAvoidreader system complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The RFID tag is designed with multi-functionality, serving both as a unique identifier storage device and as a data transmission interface for TPMS information. Standard RFID readers can access both the tire ID and tire parameter data through this single tag, eliminating the need for separate specialized readers.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system merges the tire ID storage function and the tire parameter data storage function into a single RFID tag structure. This consolidation allows one reader to access all tire-related information, simplifying the overall system architecture and reducing costs.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP3184329B1Integrated TPMS module and RFID tag data sharing system in a tire

Publication Date: 2019.01.30 THE GOODYEAR TIRE & RUBBER CO

Figure 1
Figure 2

AI summary

A tire assembly is disclosed having an integrated system for sharing tire-based information, the assembly comprising a tire (12), an identification tag device (10) mounted to the tire (12) for storing an accessible unique tire identification code (34), wherein the identification tag device (10) is operable to transmit the stored tire identification code (34) to a remote receiver, a sensor module (20) mounted to the tire (12) and having at least one sensor for measuring at least one tire parameter, wherein the sensor module is operable to transmit measured tire parameter data from the at least one sensor, and a data sharing interface (30) in the identification tag device (10) and in the sensor module (20) whereby the unique tire identification code (34) is shared between the identification tag device (10) and the sensor module (20).