TPMS Transmitter Position Recognition via External Input
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Solution Overview
Problem
Existing tire position detecting systems rely on low frequency initiators attached to tires, increasing manufacturing and maintenance costs, and require external assistance for initial tire position input.
Innovation Solution
A system where tire positions are initially input to TPMS transmitters using an external device, allowing TPMS receivers to automatically detect tire positions without low frequency initiators, and enabling automatic detection of new tires without external device intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If low frequency initiators are installed in each tire to automatically recognize tire positions, then tire position detection accuracy is improved, but manufacturing costs and maintenance costs increase
Solution Approach 1:
The patent extracts the position recognition function from the tire-mounted low frequency initiators and relocates it to the transmitter unit. The transmitter, which is already attached to the tire, now performs both position recognition and state information transmission functions, eliminating the need for separate low frequency initiators in each tire.
Solution Approach 2:
The patent merges the position recognition function with the transmitter unit. The transmitter integrates both the state information sensor and the position recognition capability, combining multiple functions into a single component that is already mounted on the tire.
2Measurement precision
If low frequency initiators are installed in each tire to automatically recognize tire positions, then tire position detection accuracy is improved, but maintenance costs increase
Solution Approach 1:
The patent removes the low frequency initiator component from the tire assembly and transfers its position recognition functionality to the transmitter unit, thereby eliminating a separate component that would require maintenance.
Solution Approach 2:
The patent combines the position recognition function with the transmitter unit, creating a single integrated component. This reduces the number of separate parts that can fail and require maintenance, as the transmitter is already a necessary component for tire state monitoring.
3Ease of manufacture
If tire positions are manually input using an external device, then manufacturing costs are reduced, but the process requires external assistance and is less automated
Solution Approach 1:
The transmitter unit performs self-position recognition by automatically receiving position information from an external device and storing it in its own memory. This eliminates the need for manual configuration and allows the system to configure itself automatically during tire installation.
Solution Approach 2:
The transmitter pre-stores position information in its memory before the tire is mounted on the vehicle. This preliminary configuration enables the transmitter to immediately provide accurate position data when activated, without requiring real-time manual input or complex initialization procedures.
Data Source
AI summary
The present invention relates to a system and a method for sensing positions of tires. The system for sensing the positions of the tires comprises: a plurality of transmitters having identification numbers (ID) which are attached to inner parts of a plurality of tires to detect the states of the tires; an external device which records position information of the transmitters located in a vehicle in each of the transmitters; and a receiver for receiving the IDs and the state information and the position information of the tires.